Abnormal Power, Current, Or Impedance Condition Patents (Class 700/293)
  • Patent number: 10401401
    Abstract: A system comprises of a plurality of current consumption monitors, such as self-powered power sensors (SPPSs) that collect information from energy consuming equipment. The monitors check periodically the current consumed by the equipment and the results are stored in memory. Periodically the data collected is processed respective of each monitor to determine the ratio between the total number of cycles, i.e., the number of times an equipment consumed energy, to the number of cycles in which the equipment consumed energy for a period of time that is shorter than a predetermined threshold of time. Upon detection of a change in the ratio over a period of time an alert is provided. In one embodiment the equipment may be caused to shut down responsive of an appropriate alert.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: September 3, 2019
    Assignee: Panoramic Power Ltd.
    Inventors: Adi Shamir, Itay Reved, Reuven A. Marko
  • Patent number: 10396565
    Abstract: A system for aircraft power distribution (100) includes a source of energy (112) to deliver an input power; a bus contactor (122); a set of switches (130) connected between the bus contactor and a set of essential and non-essential devices (132); a current analysis component (315) to determine a power level drawn from the source of current by the set of essential and non-essential devices (132); a variation reduction component (317) to determine an energization schedule of the set of essential and non-essential devices (132) based on reducing temporal variation in the input power drawn from the source of energy (112) to the bus contactor (122); and a switch control component (319) configured to adjust the set of switches (130) according to the energization schedule. If too much power is drawn, the set of switches (130) will be configured such as not to exceed the maximum power rating of the source (112).
    Type: Grant
    Filed: May 6, 2015
    Date of Patent: August 27, 2019
    Assignee: GE Aviation Systems Limited
    Inventors: Michael David Bailey, Colin John Halsey, Ross Jonathan Williams
  • Patent number: 10373474
    Abstract: A data acquisition system, including an input configured to receive a signal on a port and a processor. The processor determines, during an initial scan, a first measurement value of the signal on the port, sets at least one alarm value based on the first measurement value, the at least one alarm value being within a predetermined amount of the first measurement value, receives, during a subsequent scan, a second measurement value of the signal on the port, and generates an alert when the second measurement value violates the at least one alarm value.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: August 6, 2019
    Assignee: Keithley Instruments, LLC
    Inventors: Brian P. Frackelton, George J. Polly
  • Patent number: 10355523
    Abstract: A fault type determination method and device of a terminal unit for automation used in a power distribution network are disclosed. The method includes: for each line of incoming lines and outgoing lines of a distribution device, recording the number of faults occurring on the line; after a fault occurs, determining, according to the current and/or voltage on each line, whether automated reclosing is executed, and recording the number of executed automated reclosings; in a fault type determination period, for each line, if the number of faults occurring on the line is greater than the maximum number of automated reclosings allowed by the transformer substation side, or the fault is a repeat fault, then identifying the fault on the line as a permanent fault.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: July 16, 2019
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventor: Ji Chen
  • Patent number: 10348103
    Abstract: A portable electric vehicle support equipment (EVSE) unit is formed as a cord of plural insulated conductors and a flexible outer sheath enclosing said plural insulated conductors. The cord includes an EVSE docking connector on a docking end of the cord and a utility plug on a utility end of the cord, said cord being divided into a docking section terminated at said docking connector and a utility section terminated at said utility connector. The cord further includes an in-line EVSE controller and a housing enclosing said controller, said housing sealed with said flexible outer sheath and disposed at an intermediate section of said cord between said docking and utility sections.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: July 9, 2019
    Assignee: Webasto Charging Systems, Inc.
    Inventors: David Paul Soden, Albert Joseph Flack, Herman Joseph Steinbuchel, IV, Larry Hayashigawa, Brendan Francis O'Donnell, Francis Patrick Wong, Robert Barrosa
  • Patent number: 10345356
    Abstract: A current consumed by an electric consumer is sampled as a first sampled current, and a main current sensor samples a current provided by an electric supply system as a second sampled current. A fault current detector detects a fault current between the electric supply system and the electric consumer, based on a non-zero difference between the first sampled current and the second sampled current and, in response, generates a circuit break signal. A residual current device receives the circuit break signal and, in response, to breaks a circuit between electric supply system and the electric consumer.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: July 9, 2019
    Inventor: Parviz Fotoohi
  • Patent number: 10338110
    Abstract: A source-measure unit (SMU) may be implemented with digital control loops and circuitry to digitally compensate for the impact of input bias current on current measurements. One or more buffers having well-defined characteristics with respect to certain parameters which may affect the current measurements may be used in the output signal path of the SMU where a shunt voltage developed across a current sense element is measured. For example, the buffers may conduct/develop respective input bias currents that change perceptibly and predictably with temperature. By measuring the temperature and adjusting a control voltage—which is used to develop the shunt voltage—according to the temperature measurements, the impact of the input bias current[s] on the current measurement[s] may be reduced to negligible levels and/or may be eliminated.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: July 2, 2019
    Assignee: National Instruments Corporation
    Inventors: Pablo E. Limon-Garcia-Viesca, Christopher G. Regier
  • Patent number: 10326678
    Abstract: A load-controlling interfacing device obtains and processes event data, for example, from a touch-screen user interface and/or other devices, and that processes rules based on the event data to control an electrical load, such as a light fixture. During operation, when the interfacing device obtains event data, the interfacing device selects a rule to process based on the event data from the touch-screen user interface. If the interfacing device determines that the rule's condition is satisfied, the interfacing device can process the rule's action description to perform a corresponding action for controlling power to the electrical load.
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: June 18, 2019
    Assignee: Ubiquiti Networks, Inc.
    Inventors: Randall W. Frei, Linker Cheng, Robert J. Pera
  • Patent number: 10320641
    Abstract: The present disclosure illustrates a switch device for substation and an error warning method thereof. The switch device accesses and copies a generic object oriented substation event (GOOSE) packet, and when the copied GOOSE packet is determined to trigger an abnormal condition event, the switch device generates and transmits an abnormal condition event confirmation request to an upstream switch device. A warning message is issued when a ready response cannot be received by the switch device from the upstream switch device. Therefore, the technical effect of quickly and accurately finding the switch device triggering the abnormal condition event first to facilitate repair may be achieved.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: June 11, 2019
    Assignee: MOXA INC.
    Inventor: Hsi-Chin Wu
  • Patent number: 10303194
    Abstract: Systems, methods and apparatus for power management in an electric power grid are disclosed. A power flow to a plurality of power consuming devices in the electric power grid is enabled and disabled by a plurality of controllable devices under the control of one or more client devices. An apparatus receives a power control command and select at least one client device to which to issue a power reduction message. The power reduction message comprises an amount of electric power to be reduced to at least one of the plurality of power consuming devices for a predetermined time. A database stores information relating to power consumed by the plurality of power consuming devices based on measurement and verification.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: May 28, 2019
    Assignee: CAUSAM ENERGY, INC
    Inventor: Joseph W. Forbes, Jr.
  • Patent number: 10170928
    Abstract: A charging combination includes a power output device which is configured to output electric energy constantly or adjustably and a power input device which is configured to receive electric energy from the power output device. The power output device includes a power supply module for storing electric energy or obtaining electric energy from an external power grid as an energy source, a first USB connector for being connected with the power supply module and at least configured to transfer electric energy, and a first control module having a first controller which is at least configured to control an output voltage of the first USB connector when supplying electric energy. The power input device comprises a second USB connector at least configured to be electrically coupled to the first USB connector for transferring electric energy, and a second control module comprising a second controller at least configured to communicate with the first controller and to control the second USB connector.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: January 1, 2019
    Assignee: Chervon (HK) Limited
    Inventor: Aixiang Dong
  • Patent number: 10164431
    Abstract: Outages associated with an electrical energy distribution system are managed, identified and/or predicted. In an implementation, a system provides for generating network topology data, indicative of a topology for an electrical energy distribution system associated with a power outage, based on connectivity data for devices in the electrical energy distribution system. The system also provides for determining, based on the network topology data, a first set of devices from the devices that are de-energized and determining a second set of devices from the devices that are not included in the first set of devices. Furthermore, the system provides for updating, based on report data associated with the second set of devices, the network topology data. Then, the system provides for identifying, based on the updated network topology data, a device from the second set of devices that satisfies a criterion associated with the power outage.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: December 25, 2018
    Assignee: General Electric Technology GmbH
    Inventors: Alan Karlak, Villy Vassdal, Bret Phillips, Brajesh Kumar
  • Patent number: 10128661
    Abstract: An indicator device includes a housing configured to be coupled to positive and negative DC wire lines that supply power from an energy generation source to an inverter. The indicator device further includes a current sensor for measuring a current level on the positive and negative DC wire lines, and voltage sensors for measuring a first voltage across the positive and negative DC wire lines, a second voltage across the positive DC wire line and a ground terminal, and a third voltage across the negative DC wireline and the ground terminal. A circuit block compares the measured current level to one or more threshold current levels, and further compares the measured first, second and third voltages to one or more threshold voltage levels, and in response provides an output signal. A visual indicator receives the output signal from the circuit block, and in response provides a visual indication of whether voltage and current levels on the positive and negative DC wire lines are at levels that may harm humans.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: November 13, 2018
    Assignee: SolarCity Corporation
    Inventors: Alex Mayer, Sandeep Narla
  • Patent number: 10122419
    Abstract: A transaction device may include a power reception component configured to receive power from an external device with which the transaction device is to interact to perform a transaction. The transaction device may include a secure element configured to perform the transaction using the power received from the external device. The transaction device may include one or more peripheral components configured to perform one or more operations other than the transaction. The transaction device may include a power management component configured to determine at least one operation, of the one or more operations, to be performed in association with the transaction, and to route power received from the external device to at least one peripheral component, of the one or more peripheral components, capable of performing the at least one operation.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: November 6, 2018
    Assignee: Capital One Services, LLC
    Inventors: Adam Koeppel, Tyler Locke
  • Patent number: 10067168
    Abstract: A power meter includes a voltage sensor input port configured to receive one of single phase AC voltage and three phase AC voltage values. The power meter further includes a current sensor input port configured to receive one of single phase AC current and three phase AC current values. The power meter further includes a bus connector adapted to be coupled to a data bus. The power meter further includes a module connector adapted to be coupled to a module bus. The power meter further includes a timer for producing a digitizing clock. The power meter further includes a microprocessor.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: September 4, 2018
    Assignee: Raritan Inc.
    Inventor: Michael Suchoff
  • Patent number: 10031173
    Abstract: Method and system for performing arc fault and ground fault detection in a dual function CAFI/GFCI circuit breaker uses two analog-to-digital converters (ADC), one for performing arc fault sampling and one for performing ground fault sampling. Each ADC operates independently of the other ADC and may be accessed as needed by the microcontroller without interfering with the operation of the other ADC. Such simultaneous use of multiple ADCs minimizes or eliminates the need for complex time slicing and similar control schemes, thus freeing up the microcontroller for other operations and fault detection related tasks.
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: July 24, 2018
    Assignee: Schneider Electric USA, Inc.
    Inventors: Brennan T. Lentz, Joseph R. Beierschmitt, Randall J. Gass, Issa V. Dramé
  • Patent number: 10029573
    Abstract: A battery electrical vehicle or plug-in hybrid electric vehicle includes a battery which may be charged by an electrical charging station coupled to the electric power grid. To maximize the charging efficiency thus decreasing charge time, the voltage and current drawn from the power grid may be closely monitored. Based on the monitoring of the voltage and current of an electrical circuit powering a battery charger, a notification of changing conditions to charging characteristics including electric circuit wiring resistance, power loss or wiring efficiency may be generated.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: July 24, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Allan Roy Gale, Michael W. Degner, Lu Chen, Paul Theodore Momcilovich
  • Patent number: 10002504
    Abstract: Systems and methods of providing intelligent system trouble notifications using localization are provided. Some methods can include a dealer device receiving a first signal from a first control panel device indicative of a system trouble event at the first control panel device, the dealer device transmitting a second signal to each of a plurality of other control panel devices soliciting a status update therefrom, the dealer device receiving a respective third signal from each of the plurality of other control panel devices indicative of a respective system status, and the dealer device determining whether the system trouble event is local to the first control panel device or is area wide.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: June 19, 2018
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Shaiju Janardhanan, Hemanth P V
  • Patent number: 9969277
    Abstract: An AC power adapter for a plug-in electric vehicle has a connector for reception in a charging port of the plug-in electric vehicle, at least one AC outlet coupled to the connector and command generation circuitry coupled to the connector for generating a command that causes the plug-in electric vehicle to put itself into a power feedback mode wherein AC power generated by the plug-in electric vehicle and provided to its charging port is coupled through the connector to the AC outlet.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: May 15, 2018
    Assignee: FCA US LLC
    Inventors: Wendell David Williams, Gary J Burlak
  • Patent number: 9946275
    Abstract: The power management system includes: a power management device for managing power to be used by multiple power loads; and a large power-using power load. The large power-using power load is defined as a power load which shows a power consumption larger than a difference between allowable power and an upper limit power smaller than the allowable power when operating at a maximum power consumption. The power management device calculates remaining available power available for the large power-using power load, from the total power consumption of the multiple power loads and the upper limit power, and notifies the remaining available power to the large power-using power load. The large power-using power load starts to operate under a condition that its power consumption is equal to or less than the remaining available power notified by the power management device.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: April 17, 2018
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Kiyotaka Takehara, Kenji Nakakita, Hitoshi Nomura, Fumitaka Ogasawara, Erina Nagae
  • Patent number: 9935463
    Abstract: A microgrid connecting at least one distributed electricity generator includes a first switch configured for, in a closed position, connecting the microgrid to a first network line at a first point of common coupling (PCC) and for, in an open position, disconnecting the microgrid from the first network line at the first PCC; a second switch configured for, in a closed position, connecting the microgrid to a second network line at a second PCC, and for, in an open position, disconnecting the microgrid from the second network line at the second PCC; and a control unit configured for, when an islanding event has been detected when the second switch is in its closed position and the first switch is in its open position, acting to close the first switch, bringing it to its closed position.
    Type: Grant
    Filed: September 3, 2013
    Date of Patent: April 3, 2018
    Assignee: ABB SCHWEIZ AG
    Inventor: Ritwik Majumder
  • Patent number: 9906025
    Abstract: An electric power supply apparatus includes a controller configured to control an amount of generated power, obtained from an energy creation device, supplied to multiple power-using devices capable of being operated or charged with the generated power. The power-using devices are assigned priorities based on an order in which the power-using devices use the generated power, and the controller supplies the generated power to the power-using devices in descending order of the priorities according to the amount of the generated power obtained from the energy creation device and a predetermined supply power amount required by each power-using device.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: February 27, 2018
    Assignee: DENSO CORPORATION
    Inventor: Shizuo Tsuchiya
  • Patent number: 9885744
    Abstract: The present invention relates to a system and method for an abnormal waveform in a power distribution system that quickly transmits abnormal waveform-related data of a large size by changing a protocol according to data size. The system for detecting an abnormal power quality waveform comprises: a plurality of RTUs for measuring abnormal waveform when a waveform measuring signal received, and transmitting an abnormal waveform using a protocol set according to the size of the abnormal waveform; an FEP for transmitting the waveform measuring signal to an RTU installed in a failure section, and receiving and storing the abnormal waveform from the RTU; a main server for transmitting the waveform measuring signal through the FEP to the RTU installed in the failure section, performing controlling to measure the abnormal waveform generated in the failure section, and receiving and displaying the abnormal waveform according to the waveform measuring signal.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: February 6, 2018
    Assignee: KOREA ELECTRIC POWER CORPORATION
    Inventors: Sung-Woo Lee, Bok-Nam Ha, In-Yong Seo, Dong-Wan Seo, Moon-Jong Jang, Won Namkoong
  • Patent number: 9871364
    Abstract: A method for detecting an electrical arc in a photovoltaic installation includes measurement (E6) of voltage values at at least one point of the electrical circuit of the photovoltaic installation; digitization (E8) of the measured voltage values to form a sampling of data x; calculation (E10) of an estimation value y of the presence of an electrical arc based on a statistical calculation on the sampling of data and the inclusion of an omission factor ?; and comparison (E12) of the estimation value y of the presence of an electrical arc with a threshold value to deduce therefrom the presence or absence of an electrical arc in the photovoltaic installation.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: January 16, 2018
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Cédric Gouy-Pailler, Nicolas Chaintreuil
  • Patent number: 9864130
    Abstract: A power supply system includes: a power supply terminal, for receiving first power from an external power source or outputting second power to a load; at least one battery, for receiving and storing first power in a charging mode, and outputting second power to the power supply terminal in a discharging mode; a charger, enabled in the charging mode for charging the battery by first power; a switch, turned on in the discharging mode for transmitting second power to the power supply terminal; a current detection circuit, for detecting a current of the power supply terminal to determine whether the power supply system is operated in the charging or discharging mode. The current detection circuit controls the charger to be enabled in the charging mode and disabled in the discharging mode, and controls the switch to be turned on in the discharging mode and turned off in the charging mode.
    Type: Grant
    Filed: February 21, 2016
    Date of Patent: January 9, 2018
    Assignee: COMPAL BROADBAND NETWORKS INC.
    Inventors: Hung-Wei Chen, Shih-Ting Tseng
  • Patent number: 9798307
    Abstract: Controlled startup of devices is based on dynamic statistical predictions. Timely startup of onboard associated vehicle devices is based on dynamic statistical predictions and driver proximity to the vehicle. An apparatus for timely startup includes an interface operatively coupled with a power consuming device and control logic coupled with the interface. The control logic is operable in a first mode to perform processing for determining a presence of a first condition of the vehicle, and to selectively activate the power consuming device of the vehicle, via the interface, responsive to determining the presence of the first condition. The control logic is operable in a second mode to suspend, via the interface, the processing for determining the presence of the first condition of the vehicle. The control logic selectively transitions between the first and second modes in accordance with a stochastic modeling of the presence of the first condition over time.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: October 24, 2017
    Assignee: Cisco Technology, Inc.
    Inventors: Tao Zhang, Ashok K. Moghe, Aaron A. Lung, Min He
  • Patent number: 9766644
    Abstract: A server manages consumption of power supplied by utility or electric power grid operator(s) to multiple power consuming devices. Power flow to the consuming devices is enabled and disabled by controllable devices controlled by one or more client devices. The server includes a command processor, event manager, database, and client device manager. The command processor receives commands from the operator(s) and issues event messages responsive thereto. The event manager maintains a power management status for each client device and issues event instructions responsive to event messages. The database stores information relating to power consumed by the consuming devices. The client device manager selects from the database, responsive to receipt of a power reduction event instruction, client device(s) to which to issue a message indicating a power reduction amount and/or identification of at least one controllable device to be instructed to disable power flow to associated consuming devices.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: September 19, 2017
    Assignee: CAUSAM ENERGY, INC.
    Inventor: Joseph W. Forbes, Jr.
  • Patent number: 9742190
    Abstract: Devices and methods for electrically decoupling a solar module from a solar system are described. In one embodiment, a solar system includes a string of a plurality of solar modules coupled with an inverter through a DC power line. An AC input is coupled with the DC power line. A device is also included and is configured to provide a closed circuit for one of the plurality of solar modules if an AC signal voltage from the AC input is present on the DC power line, and is configured to provide an open circuit for the one of the plurality of solar modules if no AC signal voltage from the AC input is present on the DC power line.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: August 22, 2017
    Assignee: SunPower Corporation
    Inventor: David DeGraaff
  • Patent number: 9733277
    Abstract: A centralized voltage control device connected, via a communication network, to local voltage control devices connected to voltage control apparatuses, including: a transmission and reception unit receiving the number of times a tap position is changed per fixed time of the voltage control apparatus from the local voltage control device; a dead-zone-width updating unit increasing a dead zone width when the number of times a tap position is changed in a voltage control apparatus of a transformer type is a threshold or larger; and a voltage-upper-and-lower-limit-value determining unit determining the voltage upper limit value and the voltage lower limit value for each local voltage control device and issuing a command regarding these values to each local voltage control device, and determining the voltage upper limit value and the voltage lower limit value of the voltage control apparatus of a transformer type on the basis of the dead zone width.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: August 15, 2017
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Nobuhiko Itaya
  • Patent number: 9720390
    Abstract: A method for determining a generation schedule with contingency constraints for controlling power output levels for a plurality of generators in an electric power system including determining a measure of a sparse, corrective model (C), security-constrained optimal power flow (SCOPF), which reduces a number of post-contingency rescheduling operations for each of a plurality of contingencies, and adjusting a power output level of at least one of the plurality of generators according to the measure of the sparse C-SCOPF upon detecting a contingency in the electric power system.
    Type: Grant
    Filed: June 29, 2014
    Date of Patent: August 1, 2017
    Assignee: Utopus Insights, Inc.
    Inventors: Dung Phan, Xu Sun
  • Patent number: 9678522
    Abstract: A client device manages consumption of power supplied by an electric utility to multiple power consuming devices. Power flow to the power consuming devices is selectively enabled and disabled by one or more controllable devices controlled by the client device. The client device receives a power control message from a load management server. In one embodiment, the power control message indicates at least one of an amount of electric power to be reduced and an identification of at least one controllable device to be instructed to disable a flow of electric power to one or more associated power consuming devices. Responsive to the power control message, the client device issues a power management command or instruction to one or more controllable devices under the client device's control. The power management command causes the controllable device(s) to disable a flow of electric power to at least one associated power consuming device.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: June 13, 2017
    Assignee: Causam Energy, Inc.
    Inventor: Joseph W. Forbes, Jr.
  • Patent number: 9601926
    Abstract: An exemplary Multi-Terminal High Voltage Direct Current (MTDC) system includes at least three terminals, where each terminal including a Voltage Source Converter (VSC) controlled by a VSC controller. A method for controlling the MTDC system includes providing a converter schedule including at least one of a desired power flow value and a DC voltage; determining, by a MTDC master controller, a present state of the MTDC system including a dynamic topology of the MTDC system; determining, by the MTDC master controller, based on the present state of the MTDC system, based on the schedule and based on MTDC system constraints, VSC controller parameters including droop settings for local control by the VSC controllers; and transmitting the VSC controller parameters to the VSC controllers.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: March 21, 2017
    Assignee: ABB Research LTD
    Inventors: Mats Larsson, Stefan Thorburn, Bertil Berggren
  • Patent number: 9590426
    Abstract: Disclosed herein is a system and method for managing a power distribution system in which has an improved system protection and fault section determination structure in consideration of distributed power supplies, has an improved server and communication structure for one-to-one synchronization measurement, and conducts real time system management and control. The system for managing the power distribution system uses field measurement data and an event signal to detect a protection coordination correction value of a protective device for protection of the system and a fault section of the power distribution system, performs real time system analysis using the field measurement data, and transmits control information including at least one of the protection coordination correction value, the fault section and the system analysis information to a DCP server.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: March 7, 2017
    Assignee: KOREA ELECTRIC POWER CORPORATION
    Inventors: Sang-Yun Yun, Cheol-Min Chu, Seong-Chul Kwon, Il-Keun Song
  • Patent number: 9581727
    Abstract: A severe weather detection and warning method may include collecting atmospheric sounding data from at least one satellite atmospheric sounding device corresponding to a grid of localized regions, with the atmospheric sounding data including geospatial location and elevation components. The method may further include collecting weather radar data for the grid of localized regions from at least one radar station, determining a location and direction of travel of at least one moisture system based upon the weather radar data, and determining respective atmospheric instability levels for the localized regions based upon the atmospheric sounding data. The method may also include determining when the direction of travel of the at least one moisture system is approaching a given localized region having an atmospheric instability level above an instability threshold, and generating a severe weather warning indication based thereon.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: February 28, 2017
    Assignee: HARRIS CORPORATION
    Inventors: Allan M. Weiner, Brian J. Haman, Justin R. Sanchez
  • Patent number: 9563190
    Abstract: A power management system includes an electronic apparatus including a notification unit, a recording unit, a switching unit, and a transmitting unit, a management apparatus including an apparatus control unit, and a relay apparatus relaying communication between the apparatuses. In the first mode, the notification unit notifies the management apparatus of the state of the electronic apparatus at predetermined timings or according to a change in the state. In the second mode, the recording unit records the state instead of transmitting the notification. The switching unit switches the control mode in response to an instruction from the management apparatus. Upon switching from the first mode to the second mode, the transmitting unit transmits switching information to the management apparatus. Upon reception of the switching information, the apparatus control unit switches the control mode of the relay apparatus so as to reduce the power consumption of the relay apparatus.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: February 7, 2017
    Assignee: FUJI XEROX CO., LTD.
    Inventor: Kenji Kuroishi
  • Patent number: 9533599
    Abstract: A portable electric vehicle support equipment (EVSE) unit is formed as a cord of plural insulated conductors and a flexible outer sheath enclosing said plural insulated conductors. The cord includes an EVSE docking connector on a docking end of the cord and a utility plug on a utility end of the cord, said cord being divided into a docking section terminated at said docking connector and a utility section terminated at said utility connector. The cord further includes an in-line EVSE controller and a housing enclosing said controller, said housing sealed with said flexible outer sheath and disposed at an intermediate section of said cord between said docking and utility sections.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: January 3, 2017
    Assignee: AeroVironment, Inc.
    Inventors: David Paul Soden, Albert Joseph Flack, Herman Joseph Steinbuchel, IV, Larry Hayashigawa, Brendan Francis O'Donnell, Francis Patrick Wong, Robert Barrosa
  • Patent number: 9535413
    Abstract: The present invention provides techniques for automatically binding device parameters to an input and output interface. Doing so enables dynamic parameters to be available to the core firmware engine. More specifically, there is no input and output data in the configuration software domain required for mapping the parameters. Rather, the configuration software may directly access the device parameters during the logic execution. This is achieved in a library by representing the parameter repository and the EPATH pointing to each parameter from the configuration software domain.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: January 3, 2017
    Assignee: Rockwell Automation Technologies, Inc.
    Inventors: Harsh Shah, David W. Siegler, James Edward Joe, Qing Jia, Tao Song, Zhen Wei
  • Patent number: 9496706
    Abstract: The present invention discloses a fast power swing unblocking method and apparatus for a distance protection in a power system, which is able to ensure fast phase-segregated tripping of distance protection for faults during a power swing (3-phase or 2-phase swing). The power swing unblocking method in a power system according to the present invention comprises calculating changing rates of impedances for all operating loops of the distance protection in the power system; and determining a fault loop based on the calculated changing rates. If there is a fault loop, a blocked distance zone for the fault loop is unblocked. Before calculating the changing rates, whether the power system is under a power swing is checked and a distance zone that might mal-operate under the power swing is blocked if it is checked that the power system is under the power swing.
    Type: Grant
    Filed: July 7, 2008
    Date of Patent: November 15, 2016
    Assignee: ABB RESEARCH LTD.
    Inventors: Bin Su, Lei Jing, Qianjin Liu
  • Patent number: 9431816
    Abstract: A direct current arc fault detector includes a first current sensor sensing an alternating current component of current flowing in a DC power circuit; a second current sensor sensing a DC component of the current; and a bandpass filter filtering the sensed AC component. A demodulating logarithmic amplifier includes an input of the filtered AC component, and an output. An integrator or minimum detector includes an input connected to the amplifier output, and an output. A processor repetitively inputs and then resets the integrator or minimum detector output, and determines an arc when, for a predetermined time: the sensed DC component being greater than a first predetermined value, and a present value of the integrator or minimum detector output being greater than or different from a previous value of such output by more than a second predetermined value, or the present value being greater than a third predetermined value.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: August 30, 2016
    Assignee: EATON CORPORATION
    Inventors: Kevin L. Parker, Theodore J. Miller
  • Patent number: 9293920
    Abstract: Systems and methods for synchronizing switching within a power distribution network are provided. A switch plan for restoring electrical power to a power distribution network following a power outage may be identified by a control system. The control system may be associated with a power utility and may include one or more computers. A plurality of switching operations associated with the switch plan may be identified by the control system. The plurality of switching operations may include at least one automatic switching operation and at least one manual switching operation. A synchronized execution of the plurality of switching operations may be coordinated by the control system.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: March 22, 2016
    Assignee: General Electric Company
    Inventor: Dale Robert McMullin
  • Patent number: 9276394
    Abstract: A modular power distribution system comprises a chassis; and a backplane including a power input, and a plurality of module connection locations. A plurality of modules are mounted in the chassis, each module mounted to one of the module connection locations. Each module includes: (i) an OR-ing diode; (ii) a circuit protection device; (iii) a microprocessor controlling the circuit protection device; and (iv) a power output connection location. A circuit option switch is located on each module for setting the current limits for each module. A control module is provided connected to the backplane.
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: March 1, 2016
    Assignee: CommScope Technologies LLC
    Inventors: Joseph C. Coffey, Bradley Blichfeldt
  • Patent number: 9213327
    Abstract: An environmental monitoring device that includes a switching mechanism is described. During operation of the environmental monitoring device, the switching mechanism such as a switch) selectively electrically couples a first electrical-connection node and a second electrical-connection node. For example, using the switching mechanism, an electronic device that is electrically coupled to the first electrical-connection node may be selectively electrically coupled to a second electronic device that is electrically coupled to the second electrical-connection node. The selective electrical coupling may be based on one or more measurements of an environmental condition in an external environment that includes the environmental monitoring device. Moreover, a sensor mechanism in the environmental monitoring device may provide sensor data based on the one or more measurements.
    Type: Grant
    Filed: July 17, 2014
    Date of Patent: December 15, 2015
    Assignee: Leeo, Inc.
    Inventors: Adam M. Gettings, Andrew G. Stevens, Bjorn H. Hovland, Yi Zheng, Lucas Ivers, Nina S. Joshi
  • Patent number: 9202168
    Abstract: A method of identifying at least one event zone subject to an event in a substation environment of an electrical grid. Thereby, data from multiple intelligent electronic devices can be synthesized in real-time whereby an operator can be presented with a single conclusion describing the event attributes thereby helping the operator to determine the mitigation actions as needed. The method includes receiving first event related data from the intelligent electronic devices, and based on the first event related data, determining whether the at least one monitoring zone subject to the event is a primary monitoring zone of at least one of the intelligent electronic devices or a non-primary monitoring zone for all of the intelligent electronic devices using ensemble decision making and probabilistic methods. It is also presented a system for carrying out the method.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: December 1, 2015
    Assignee: ABB Research Ltd.
    Inventors: Kari Saarinen, Mirrasoul Mousavi
  • Patent number: 9167669
    Abstract: A state change device may be electrically connected to a switched receptacle, or to both the switched and unswitched receptacles, of an outlet. The state change device may generate a change of state signal when power is applied to, or removed from, the switched receptacle. The state change device may wirelessly communicate the signal. The state change device may include a load control circuit that may be configured to control the amount of power delivered to an electrical load that is electrically connected to the state change device. The state change device may receive commands directed to the load control circuit. The state change device may be deployed in a load control system and may operate as a control entity, such that the state change device may issue commands to one or more load control devices, responsive to the application or removal of power at the switched receptacle.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: October 20, 2015
    Assignee: LUTRON ELECTRONIC CO., INC.
    Inventors: Jeffrey Karc, Ankit Bhutani, Galen Edgar Knode, Jamie Steffie
  • Patent number: 9156362
    Abstract: A portable electric vehicle support equipment (EVSE) unit is formed as a cord of plural insulated conductors and a flexible outer sheath enclosing said plural insulated conductors. The cord includes an EVSE docking connector on a docking end of the cord and a utility plug on a utility end of the cord, said cord being divided into a docking section terminated at said docking connector and a utility section terminated at said utility connector. The cord further includes an in-line EVSE controller and a housing enclosing said controller, said housing sealed with said flexible outer sheath and disposed at an intermediate section of said cord between said docking and utility sections.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: October 13, 2015
    Assignee: AeroVironment, Inc.
    Inventors: David Paul Soden, Albert Joseph Flack, Herman Joseph Steinbuchel, IV, Larry Hayashigawa, Brendan Francis O'Donnell, Francis Patrick Wong, Robert Barrosa
  • Patent number: 9148160
    Abstract: Methods and systems are provided for dynamic power switching in current-steering digital-to-analog converters (DACs). A DAC circuit may be configured to apply digital-to-analog conversions based on current steering, and to particularly incorporate use of dynamic power switching during conversions. The DAC circuit may comprise a main section, which may connect a main supply voltage to a main current source. The main section may comprise a positive-side branch and a negative-side branch, which may be configured to steer positive-side and negative-side currents, such as in a differential manner, to effectuate the conversions. The dynamic power switching may be applied, for example, via a secondary section connecting a main current source in the DAC circuit to a secondary supply voltage. The secondary supply voltage may be configured such that it may be less than the main supply voltage used in driving the current steering in the DAC circuit.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: September 29, 2015
    Assignee: MAXLINEAR, INC.
    Inventor: Jianyu Zhu
  • Patent number: 9130364
    Abstract: Methods and systems for a hot circuit detector/indicator that continuously monitors a three-phase network and has visual indications for phase sequence, phase presence, and phase loss. The hot circuit indicator is a compact unit that, in a preferred embodiment, includes separate light emitting diode indicators for each phase and LEDs to indicate clockwise and counter-clockwise phase sequence. The hot circuit detector/indicator also includes a relay that can be a normally open or normally closed. The hot circuit indicator can be panel mounted or integrated into a connector supplying multi-phase voltage to a load. The multi-phase voltage to be monitored can be in a range between 12 vac and 38 kVac.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: September 8, 2015
    Assignee: Becker Mining America, Inc.
    Inventor: Sam Handshoe
  • Patent number: 9122648
    Abstract: A method for throttling a bus, e.g. a memory bus, may be used to compensate for potential inaccuracy of feedback information received for monitored characteristics, e.g. temperature, reported by sensors configured in monitored devices, e.g. memory devices, accessed through the bus. For example, in case of a memory bus, a memory controller may be configured to throttle the memory bus in a way that maximizes system performance while ensuring that the memory devices keep operating within their thermal limits. Readings obtained from the memory, or from close proximity to the memory, may indicate whether the temperature of the memory has crossed over one or more designated trip points, and one or more algorithms may be executed to perform throttling according to the readings and based on fixed and dynamic throttling modes.
    Type: Grant
    Filed: August 22, 2007
    Date of Patent: September 1, 2015
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Tahsin Askar, Philip E. Madrid
  • Patent number: 9054531
    Abstract: The present disclosure relates to distributed line flow processing for a network having nodes with branches coupling adjacent ones of the nodes and components coupled to the nodes. In one embodiment, the disclosed process includes receiving an objective function having component variables, nodal output variables and branch flow variables for the network. Next, the component variables, nodal output variables and branch flow variables are initialized with initial values, and then values for the branch flow variables are calculated using a distributed Newton method. Finally, values for the component variables and the nodal output variables are calculated using values calculated for the branch flow variables until the values of the component variables, the nodal output variables, and the branch flow variables converge within a predetermined threshold range.
    Type: Grant
    Filed: January 5, 2012
    Date of Patent: June 9, 2015
    Assignee: Carnegie Mellon University
    Inventors: Marija D. Ilic, Andrew Hsu
  • Patent number: 9047067
    Abstract: A method and system for thermal mitigation in a personal computing device is disclosed. A signal associated with an electronic element in the portable computing device is monitored. A thermal condition indicating excessive heat production is determined in response to the monitored signal. An action to mitigate heat production in the portable computing device may be performed in response to the thermal condition.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: June 2, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Jon James Anderson, Michael K. Spartz, Christopher L. Medrano, Praveen Kumar Chidambaram