For Electrical Fault Detection Patents (Class 702/58)
  • Patent number: 10698019
    Abstract: A method is presented to estimate the remaining life of a moving power cable online. The cable is monitored online remotely for further providing suggestions to users for reducing times of power failure and economic loss. An offline AC impedance measurement experiment is designed at first. Three artificial neural networks are established for convert measured impedances into impedances under a baseline context to calculate impedance change ratios. The impedance change ratio indicates the damage of the cable. At last, a remaining margin of the impedance change ratio is figured out online under various contexts with three equations. Thus, the remaining life of the cable is obtained online.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: June 30, 2020
    Assignee: Chung Yuan Christian University
    Inventors: Ying-Yi Hong, Chun-Yao Lee, Chun-Yi Liu
  • Patent number: 10698004
    Abstract: A measurement device for measuring at least one signal generates a first trigger impulse upon detection of a first trigger condition in at least one signal to be measured. It stores for the at least one signal multiple segments each containing the detected first trigger condition upon generation of the first trigger impulse in an acquisition memory. A second trigger impulse is generated upon detection of a second trigger condition in the multiple segments of the at least one signal stored in the acquisition memory. For the at least one signal the segments containing the detected second trigger condition are displayed upon generation of the second trigger impulse on a display unit.
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: June 30, 2020
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Friedrich Reich, Ferdinand Mayet, Wolfgang Herbordt
  • Patent number: 10664630
    Abstract: A method retrofits an existing electrical energy network with additional controllable devices for transmitting energy. A model of the energy network is provided, the model takes into account a voltage distribution inside the energy network by a system of equations and/or a system of inequations on the basis of the number and position of additional controllable devices and on the basis of control positions of all controllable devices. The model is used to carry out a simulation for minimizing a target function. The target function takes into account retrofitting effort and/or energy losses caused by the additional controllable devices, and in which the number and position of additionally required controllable devices and the control positions of all controllable devices are stated as a result of the simulation so that the energy network complies with a predefined voltage band during operation.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: May 26, 2020
    Assignee: Siemens Aktiengesellschaft
    Inventor: Christian Blug
  • Patent number: 10666520
    Abstract: Discovering devices and device configurations. A method includes sending a request to a device to obtain a data value from the device. The method further includes, in response, receiving the data value from the device. The method further includes, based on the received data value, identifying one or more device identifications for the device. The method further includes, using the one or more identifications, sending commands for equipment potentially connected to the device. The method further includes, receiving one or more responses to the commands. The method further includes, based on the one or more responses, concretely identifying the device.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: May 26, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Alina Mihaela Stanciu, Mohamed Haitham Shami, Chris Neil Segura
  • Patent number: 10656198
    Abstract: A system for monitoring an electric power delivery system by obtaining high-frequency electric power system measurements and displaying event information is disclosed herein. The system may use the high-frequency electric power system information to detect traveling waves. The system may generate a display showing fault location on the electric power system, and timing of traveling waves received at locations on the electric power system. The display may include time on one axis and location on another axis. The display may include a waterfall display.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: May 19, 2020
    Assignee: Schweitzer Engineering Laboratories, Inc.
    Inventors: Edmund O. Schweitzer, III, Veselin Skendzic, Cody W. Tews, David E. Whitehead
  • Patent number: 10644624
    Abstract: Systems and methods for controlling a movable component using back electromotive force (BEMF)-based feedback are described. The system includes an actuator operatively coupled to the movable component. The actuator includes a motor for driving the movable component. The actuator includes a BEMF circuit for measuring a BEMF produced by the motor while driving the movable component. The system includes a processing circuit communicably coupled to the motor and the BEMF circuit. The processing circuit receives, from the BEMF circuit, a BEMF signal generated by the BEMF circuit as the motor drives the movable component. The processing circuit determines, based on the BEMF signal, an active range of the motor which corresponds to a full stroke of the movable component. The processing circuit controls the motor to drive the movable component within the active range.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: May 5, 2020
    Assignee: Johnson Controls Technology Company
    Inventors: Claudio Viscardi, Michele Carozzi, Andrea Tamagni, Mattia Lovati
  • Patent number: 10613146
    Abstract: A test apparatus includes an output configured to be coupled to a sense input of an arc quenching device control circuit of an arc quenching system, a user interface, and a control circuit configured to generate a simulated sense signal at the output in response to an input at the user interface, the simulated sense signal representing a physical state associated with a fault condition of a bus coupled to the arc quenching system. The simulated sense signal may be configured to cause the arc quenching device control circuit to trigger an arc quenching device of the arc quenching system. The physical state may include, for example, a voltage condition, a current condition, a temperature, a pressure or a light intensity. In some embodiments, the simulated sense signal may include a current indicative of a current passing through a bus to which the arc quenching system is connected.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: April 7, 2020
    Assignee: Eaton Intelligent Power Limited
    Inventors: Robert J. Burns, Dan E. Hrncir, David A. Metcalf
  • Patent number: 10605376
    Abstract: An electric actuator comprises an electricity storing portion that stores electric energy, a charging portion that charges the electricity storing portion when the electric actuator is energized by receiving electric power from outside, and a controlling portion that controls the entire actuator. The controlling portion controls the opening degree of a valve according to an opening degree target value when the electric actuator is energized and operates the valve to a desired opening position using energy stored in the electricity storing portion when interruption of electric service occurs. In addition, the controlling portion causes the charging portion to start charging of the electricity storing portion when a charge waiting time that depends on predetermined priority of charging has elapsed after electric power is turned on.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: March 31, 2020
    Assignee: Azbil Corporation
    Inventor: Hiroaki Narita
  • Patent number: 10583743
    Abstract: In a regenerative braking device of a dump truck comprising an engine, a first generator and a second generator driven by the engine, at least one travel motor driven by generated electric power of the first generator and at least one fan motor to which generated electric power of the second generator is inputted via a first rectifier circuit, the regenerative braking device comprises: a resistive element to which regenerating electric power from the at least one travel motor in regenerative braking is supplied and which is cooled by at least one fan driven by the at least one fan motor and converts electric energy into heat energy and dissipates heat; and a DC/DC converter that inputs a part of the regenerating electric power which is supplied to the resistive element to an output line of the first rectifier circuit via a second rectifier circuit.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: March 10, 2020
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Tomonori Takada, Takanobu Ikari, Takashi Ikimi, Akihiro Nakamura, Masatsugu Arai, Naoki Fukuda, Takaaki Tanaka
  • Patent number: 10571493
    Abstract: Techniques for determining aspects of a topology of a smart grid are described herein, and particularly for determining if one or more electrical meters are connected to the same transformer. In one example, time-stamped voltage data is collected from at least two meters. The voltage data may indicate a slight transient change in voltage resulting from a consumer turning on or off an electrical load. In particular, the slight voltage changes may be sensed by all meters attached to a same transformer based on electrical load changes by any one of the customers on the same transformer. Using the time-stamped voltage data, a time-series of voltage-changes may be generated for each electrical meter. A correlation between the time-series of voltage-changes of pairs of meters may be calculated, to thereby determine an affinity between the meters, and particularly if they are connected to a same transformer.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: February 25, 2020
    Assignee: Itron, Inc.
    Inventor: Robert Sonderegger
  • Patent number: 10566796
    Abstract: A control method of the power generation system of the disclosure is a control method of a power generation system configured with a power generation apparatus and at least one other power generation apparatus coupled to the power generation apparatus herein, the power generation system configured to interconnect with a grid and supply power to a load, wherein a process performed by the power generation apparatus includes a step of obtaining a current value between the power generation system and the grid, a step of determining, based on the current value, respective target power to be generated by the power generation apparatuses, and the other power generation apparatuses, and a step of notifying the other power generation apparatuses of the respective target power.
    Type: Grant
    Filed: July 10, 2015
    Date of Patent: February 18, 2020
    Assignee: KYOCERA Corporation
    Inventors: Masaya Kojima, Hitoshi Inoue
  • Patent number: 10536998
    Abstract: A switch power supply having active power factor correction is provided, including a power factor correction (PFC) circuit, a filter circuit, a main power stage, a first capacitor and an indicating circuit. The indicating circuit consists of a light emitting diode (LED) and an inductor; and the current direction of power supplied from the PFC circuit to the main power stage through the inductor is opposite to the conduction direction of the LED. The filter circuit at least comprises an electrolytic capacitor. When the electrolytic capacitor is normal, the LED does not emit light. When the equivalent series resistance (ESR) of the electrolytic capacitor sharply rises, the exciting current appears in the inductor. When a power transistor in the main power stage is switched off, the exciting current passes through the LED for freewheeling and enables the LED to emit light.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: January 14, 2020
    Assignee: MORNSUN GUANGZHOU SCIENCE & TECHNOLOGY CO., LTD.
    Inventor: Baojun Wang
  • Patent number: 10508987
    Abstract: The invention provides a system and method for analyzing the performance of an irradiance sensor of a photovoltaic system. More specifically, a remote calibration system may receive irradiance data from an irradiance sensor of a PV system. The remote calibration system may then filter the irradiance data using one or more of a threshold filter, a curve fit filter, and a correlation filter. The filtered irradiance data is then compared to an estimated irradiance to generate an irradiance weighted average which may be used to adjust subsequent irradiance data provided by the irradiance sensor. A report system can be adjusted with the irradiance weighted average to prevent generation of a report for the irradiance sensor.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: December 17, 2019
    Assignee: Also Energy, Inc.
    Inventor: Holden R. Caine
  • Patent number: 10460403
    Abstract: A method for predicting and managing an occurrence of a power outage resulting from human activity, the method comprising the steps of: obtaining at least one short-term notification of a planned human activity event; generating a corrected human activity notification as a function of the short-term notification and data corresponding to power grid information, geographical information relating to the power grid and customers utilizing the power grid, power grid customer information, and/or historical information corresponding to prior power outages resulting from human activity events; generating an outage probability as a function of the corrected human activity notification and trained predictive modeling data; generating an optimization model as a function of the outage probability; and initiating at least one action for mitigating the occurrence of the power outage resulting from human activity as a function of the optimization model.
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: October 29, 2019
    Assignee: International Business Machines Corporation
    Inventors: Geert Janssen, Jayant Kalagnanam, Jinjun Xiong, Yada Zhu
  • Patent number: 10442301
    Abstract: A method of charging an electric vehicle at a charging station includes electrically connecting the charging station to the vehicle. The charging station may be configured to charge the vehicle using a charging station charge protocol and the vehicle may be configured to receive the charge using a vehicle charge protocol. The vehicle receives a signal indicative of the charging station charge protocol and selects the vehicle charge protocol based on this signal. The vehicle is then charged using the selected vehicle charge protocol. While selecting, the vehicle may select one charge protocol from multiple charge protocols supported by the vehicle to match the charging station charge protocol.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: October 15, 2019
    Assignee: Proterra Inc.
    Inventors: John A. Gerber, Seamus T. McGrath, Roger A. Innes, Timothy J. McCartney, Keyur M. Shah
  • Patent number: 10444219
    Abstract: Disclosed herein are systems, methods, and computer-readable media for utilizing sensor data captured by one or more sensors as well as ground-truth physically sampled data to generate a predictive model that can be used to estimate a measurable parameter without having to obtain additional physically sampled data for the parameter.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: October 15, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Aanchal Goyal, Younghun Kim, Tarun Kumar
  • Patent number: 10436855
    Abstract: An optically detected power quality disturbance caused by a remote load is classified as belonging to a class of known classes of power quality disturbances. Features associated with different power quality disturbances that belong to a plurality of different known classes of power quality disturbances are learned. Cross-covariance is applied to the optically detected power quality disturbance and the different power quality disturbances that belong to the different known classes of power quality disturbances to recognize features of the optically detected power quality disturbance that at least partially match the learned features. The class of power quality disturbances among the plurality of classes of different known power quality disturbances to which the optically detected power quality disturbance belongs is determined based on the recognized features.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: October 8, 2019
    Assignee: United States of America as represented by Secretary of the Navy
    Inventors: Oren Sternberg, John D. Rockway, Jeffery C. Allen
  • Patent number: 10424134
    Abstract: There is a method, system, and device for diagnosing an anomaly of a monitored component in a drive train, the method including obtaining original data based on samples of a vibration signal and a tachometer signal; generating a time synchronous average vibration signal; processing the time synchronous average vibration signal to produce a frequency-domain spectrum; determining the complex magnitudes of the frequency-domain spectrum; selecting a sub-synchronous band of the complex magnitudes of the frequency-domain spectrum to generate a sub-synchronous spectrum; and determining the mean of the sub-synchronous spectrum to generate a condition indicator.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: September 24, 2019
    Assignee: Bell Helicopter Textron Inc.
    Inventor: Rodney Keith Hale
  • Patent number: 10424951
    Abstract: In a solar power generation system, a solar battery string is connected to a PCS via an electric path. In the solar battery string, a plurality of solar battery units having a solar battery module and an optimizer that optimizes an output voltage of the solar battery module are connected in series. In an arc detection apparatus, capacitors form bypass current paths that bypass the optimizer, and an electric current sensor is provided on the electric path.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: September 24, 2019
    Assignee: OMRON Corporation
    Inventors: Kohei Tomita, Akihiko Sano
  • Patent number: 10396285
    Abstract: An apparatus and a method for detecting presence of attenuation in the OLED device are provided. The apparatus for detecting presence of attenuation in the OLED device includes: a difference function construction circuit, an integrating circuit, a comparing circuit and a determining circuit. The method for detecting presence of attenuation in the OLED device includes: constructing a first light brightness difference function and a second light brightness difference function before and after aging, integrating the first function and the second function, comparing two integrals, and determining whether or not intrinsic attenuation is present in a light emitting material of a light emitting layer in the OLED device. The apparatus for detecting presence of attenuation in the OLED device is configured for executing the method for detecting presence of attenuation in the OLED device.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: August 27, 2019
    Assignees: BOE Technology Group Co., Ltd., Hefei Xinsheng Optoelectronics Technology Co., Ltd.
    Inventors: Kai Xu, Rui Peng, Zhijie Ye, Yue Hu
  • Patent number: 10319822
    Abstract: This method for controlling an IGBT-type transistor includes a phase for switching the transistor between an on state and an off state. Said phase comprises generating a setpoint current whereof the intensity on the gate of the transistor assumes different setpoint values. At least some of the setpoint values are chosen as a function of the sign of the temporal derivative of the main current. Each setpoint value is chosen from a set of predetermined setpoint values.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: June 11, 2019
    Assignee: ALSTOM TRANSPORT TECHNOLOGIES
    Inventors: Florent Andrianoelison, Eric Rabasse, Stephane Boisteau
  • Patent number: 10304708
    Abstract: A test system includes a signal generator, a plurality of transmission/reception circuits and a voltage generator. The signal generator generates a test signal. The transmission/reception circuits are connected to a plurality of transmission lines. The transmission lines each include a main line and at least one branch line connected to the main line. The transmission/reception circuits provide the test signal to the transmission lines. The transmission/reception circuits detect a response signal corresponding to the test signal. The voltage generator supplies a first reference voltage and one of the second reference voltage greater than the first reference voltage and a third reference voltage between the first reference voltage and the second reference voltage to at least one of the transmission/reception circuits.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: May 28, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Gyuyeol Kim, Shin-Ho Kang
  • Patent number: 10281514
    Abstract: The invention relates to a method for ascertaining an earth fault and the earth-fault direction in a three-phase network which is operated in a compensated manner or in an insulated manner. Value pairs of a zero voltage and a zero current are measured, the active or reactive energy is calculated, and a voltage flag and a current flag are combined by a Boolean link, wherein the presence of a earth fault is ascertained depending on the result, and a decision is made as to whether the earth-fault direction is signalled as “forward” or “reverse” at least on the basis of the sign of the active or reactive energy.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: May 7, 2019
    Assignee: NSE AG
    Inventor: Andreas Aebersold
  • Patent number: 10274945
    Abstract: A monitoring system for an HVAC system of a building includes a monitoring server located remotely from the building. The monitoring server receives, from a device installed at the building, (i) time-domain current data based on a measured aggregate current supplied to a plurality of components of the HVAC system, and (ii) data based on frequency-domain current data of the measured aggregate current. Based on the received data, the monitoring server accesses (i) whether a failure has occurred in a first component of the plurality of components and (ii) generates a preliminary advisory in response to determining that the failure has occurred. The monitoring server compares the preliminary advisory to a threshold value based on data stored from prior advisories. If the preliminary advisory is on a first side of the threshold value, the monitoring server provides the preliminary advisory as a first advisory to a technician for review.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: April 30, 2019
    Assignee: EMERSON ELECTRIC CO.
    Inventors: Jeffrey N. Arensmeier, Gregg M. Hemmelgarn, Fadi M. Alsaleem, Priotomo Abiprojo
  • Patent number: 10272792
    Abstract: An EVSE is equipped with voltage and current monitors to monitor V and I values over the time of charging. Normal V & I charging values for EV charging have been previously established and plotted as a threshold curve. During present charging, the V and Z values are plotted and compared to the threshold values and the slope of the V/I curve. If present value of V is less than the threshold value, or drops over time, or the Z value increases over time; current (I) to the EV is reduced and a new V/I curve is plotted. Slope of the new V/I curve is compared to the threshold and also checked for change of slope over time. If the new V/I curve slope is greater than the threshold slope, or is changing over time, corrective action is taken.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: April 30, 2019
    Assignee: Schneider Electric USA, Inc.
    Inventors: Kevin M Jefferies, Benjamin W Edwards, Matthew L White, Konstantin Alexander Filippenko, Richard Karl Weiler
  • Patent number: 10249912
    Abstract: An electrical control system having a primary microcontroller, a secondary microcontroller, a slave IC, and a communication IC is provided. The communication IC sets a fault line to a first logic level indicating that an overvoltage condition has been detected in a battery cell. The secondary microcontroller sends a message to the primary microcontroller via a communication bus indicating that the overvoltage condition has been detected in response to the fault line having the first logic level. The primary microcontroller determines that both the message from the second microcontroller was received and the fault line has the first logic level to confirm that the communication bus is functioning as desired and that the secondary microcontroller is functioning as desired.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: April 2, 2019
    Assignee: LG Chem, Ltd.
    Inventor: Edvin Godo
  • Patent number: 10248753
    Abstract: A method, system, and computer product for performing a coupled noise analysis in an integrated circuit (IC) design include copying one or more victim circuit sections of a victim circuit in the IC design, generating a blockage circuit section that represents a blockage aggressor circuit in the IC design, using the copied one or more victim circuit sections of the victim circuit, determining at least one subcircuit from the blockage circuit section, selecting, for a victim pin on the victim circuit, a power-driven virtual node on the at least one subcircuit, applying a power source to the power-driven virtual node on the at least one subcircuit, calculating a coupled noise at the victim pin contributed by the at least one subcircuit in response to the power source being applied, comparing the coupled noise to a threshold noise level, and altering the IC design when the coupled noise exceeds the threshold noise level.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: April 2, 2019
    Assignee: International Business Machines Corporation
    Inventors: Tsz-mei Ko, Thomas G. Mitchell, Jason D. Morsey, Steven E. Washburn, Patrick M. Williams
  • Patent number: 10228408
    Abstract: The fault location of a fault on a line of an electrical energy supply network is determined. First and second current and/or voltage values are measured and provided with a timestamp at the line ends of the line. Following the occurrence of a fault, the timestamped first and second values are used to determine the fault location. Profiles of travelling waves propagating along the line towards the line ends when the fault occurs are determined from the timestamped first and second values at both line ends. The fault location is defined from the profiles of the travelling waves from a time difference with which the travelling waves arrive at the two line ends. The time difference is derived from a pattern comparison of the profiles of the travelling waves determined for the line ends.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: March 12, 2019
    Assignee: Siemens Aktiengesellschaft
    Inventors: Cezary Dzienis, Andreas Jurisch
  • Patent number: 10228740
    Abstract: In embodiments, apparatuses, methods and storage media (transitory and non-transitory) are described that include a plurality of sensor connectors to removably receive a corresponding plurality of sensors and a power management module to selectively provide power to sensor connector power terminals in response to power management signals from a sensor control module. Other embodiments may be described and/or claimed.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: March 12, 2019
    Assignee: Intel Corporation
    Inventors: Mark Kelly, Keith Nolan, Hugh M. Carr, Sean O'Byrne
  • Patent number: 10197633
    Abstract: A method for detecting the use of a battery of an energy store system may include continuously generating a use profile by transforming data into a dynamically updated visual representation of the use of the battery storage device using a frequency distribution.
    Type: Grant
    Filed: May 4, 2015
    Date of Patent: February 5, 2019
    Assignee: Siemens Aktiengesellschaft
    Inventors: Peter Eckert, Christian Koermeier, Karsten Rechenberg
  • Patent number: 10193778
    Abstract: A communication device detects whether anomalous events occur with respect to at least one node in a utility network. The communication device has recorded therein threshold operating information and situational operating information. The threshold operating information includes data indicative of configured acceptable operating parameters of nodes in the network based on respective locational information of the nodes. The situational information includes data indicative of configured operation data expected to be received from nodes in the network during a predetermined time period, based on a condition and/or event occurring during the time period. The communication device receives operation data from nodes in the network, and determines whether the operation data from a node constitutes an anomalous event based on a comparison of the received operation data with (i) the threshold operating information defined for the node and (ii) the situational information.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: January 29, 2019
    Assignee: ITRON NETWORKED SOLUTIONS, INC.
    Inventors: Raj Vaswani, Jana van Greunen, Aditi Dubey, Kunal Pankaj Shah
  • Patent number: 10186901
    Abstract: A method for decentralizing a piece of information pertaining to a power availability situation in a power grid at a particular instant includes ascertaining power availability data in the power grid by a power control center that is associated with the power grid, and generating a piece of power availability information by the power control center at the particular instant. The method also includes transmitting the power availability information from the power control center to at least one data reception system, and processing and/or outputting the power availability information by the data reception system.
    Type: Grant
    Filed: December 23, 2015
    Date of Patent: January 22, 2019
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventor: Peter Rohrauer
  • Patent number: 10180466
    Abstract: An exemplary embodiment of the present invention provides a method for determining root causes of issues in an electrical grid. The method includes receiving local data from each of a plurality of meters. The local data may be indicative of voltage levels measured by the plurality of meters. The method also includes identifying abnormalities in the received local data. An abnormality is indicated by local data indicative of a voltage level that is outside of a predetermined range of acceptable levels. The method further includes associating each of the identified abnormalities with a respective meter and a geographic location of the respective meter and analyzing each of the identified abnormalities according to a predetermined set of evaluation factors to determine a root cause.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: January 15, 2019
    Assignee: Southern Company
    Inventors: Robert D. King, Joshua Ashcraft, Jamie R. Meaders, Tommy Jamison, Jr., Ravikanth C. Paruchuri, Wesley M. Granade, Mitch A. Cason, Derl W. Rhoades, Brandon Lundy
  • Patent number: 10152336
    Abstract: Technologies for managing sensor conflicts in a compute system include determining an implication of stimuli sensed by two or more sensors of the compute system and determining whether a conflict exists between the determined implications. If a conflict does exist, an amount of discomfort is applied to the compute device. For example, a performance characteristic of the compute device may be adversely impacted based on the determined conflict. In some embodiments, the level of applied discomfort is based on a magnitude, importance, and/or duration of the implication conflict.
    Type: Grant
    Filed: December 26, 2015
    Date of Patent: December 11, 2018
    Assignee: Intel Corporation
    Inventors: Tobias M. Kohlenberg, Brian D. Johnson, John C. Weast
  • Patent number: 10145886
    Abstract: Provided is a leakage current value calculation device which precisely calculates a leakage current I0r which is a component caused by a ground insulation resistance value of an electric circuit, in the leakage current I0 flowing through the electric circuit.
    Type: Grant
    Filed: September 7, 2015
    Date of Patent: December 4, 2018
    Assignee: Tanashin Denki Co., Ltd.
    Inventors: Kenya Matsushita, Masakatsu Sawada
  • Patent number: 10110976
    Abstract: Systems and methods of the present disclosure are directed to determining the integrity of system measurements. The system and methods of the present disclosure can detect corrupted process measurement signals that can originate in instrumentation used with electricity distribution and transmission systems. These process measurement signals may be delivered by digital communications networks.
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: October 23, 2018
    Assignee: UTILIDATA, INC.
    Inventor: David Gordon Bell
  • Patent number: 10088513
    Abstract: A transformer connection phase determination device includes a processor that executes a process. The process includes: acquiring a power value consumed by at least one consumer connected to a transformer that is connected to a phase corresponding to a combination of two of plural distribution lines, and acquiring respective current values flowing in the plural distribution lines; computing a frequency component of the power value or of a current value caused by the power value, and a frequency component of the respective current values flowing in the plural distribution lines; and computing respective correlation values indicating a correlation between the power value or the current value caused by the power value and the respective current values flowing in the plural distribution lines, using each of the computed frequency components, and determining the phase to which the transformer is connected based on the respective correlation values.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: October 2, 2018
    Assignee: FUJITSU LIMITED
    Inventors: Hironobu Kitajima, Yuta Teranishi
  • Patent number: 10067665
    Abstract: An optical time domain reflectometer includes: an OTDR measurement unit; an event detection unit that detects an event using the measurement result of the OTDR measurement unit; a display unit that displays a plurality of icons indicating events in an event display region AIV and displays information of an event, which is located in a specific region AATT of the event display region AIV, in an information display region AINF; an operation detection unit that detects a swipe operation in the event display region AIV; and an event-of-interest changing unit that scrolls the events displayed in the event display region AIV according to the swipe operation to change the display of the information display region AINF to information corresponding to the event indicated by the icon located in the specific region AATT.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: September 4, 2018
    Assignee: ANRITSU CORPORATION
    Inventors: Taichi Murakami, Yasuhiro Miyake
  • Patent number: 10056186
    Abstract: Methods and apparatus according to the invention include inductive units or apparatus such as magnetic metal detectors comprising multiple electromagnetic coils and circuit boards such as electronic printed circuit boards (PCBs) so that the circuit boards, while containing metallic surfaces and layers, are positioned in such a way as to reduce or eliminate their effect on the metal detector's coils. The apparatus comprising: a plurality of electromagnetic coils and a plurality of circuit boards, and wherein at least one of said circuit boards is positioned so that its thickness direction is orthogonal to the magnetic field of at least one of said coils.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: August 21, 2018
    Assignee: VAYYAR IMAGING LTD
    Inventor: Jonathan Rosenfeld
  • Patent number: 10001522
    Abstract: A method for predicting failure of a light-emitting diode, includes applying a test potential difference across the terminals of the light-emitting diode lower than its minimum drive potential difference, the test potential difference having the same sign as the minimum drive potential difference; measuring the current Ic flowing through the light-emitting diode during the application of the test potential difference; and generating an alarm signal when the measured current Ic exceeds an alarm threshold Ia.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: June 19, 2018
    Assignee: Commissariat A L'Energie Atomique et aux Energies Alternatives
    Inventor: Benoit Hamon
  • Patent number: 10003300
    Abstract: A photovoltaic (PV) system includes module-level power electronic (MLPE) devices that produce energy. The PV system includes a gateway to receive and send data to MLPE devices. The gateway also connects the PV system with a network, such as a local area network, that allows access to the Internet. The gateway provides functionality within the PV system to perform various processes to improve operation of MLPE devices.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: June 19, 2018
    Assignee: SunPower Corporation
    Inventors: Miles Bintz, Patrick L Chapman, Jonathan L Ehlmann, Julianne Frances Haugh, Dale Herman, Brian Kuhn, Kelly Mekechuk, Eric Roesinger
  • Patent number: 9991819
    Abstract: A power conversion system is capable of distinguishing easily and clearly between being interconnected to the power system and being in an isolated operation. The power conversion system converts DC power to AC power to interconnect with a power system and injects reactive power into a grid node for determining an isolated operation, including: a voltage detector that detects an output voltage at the grid node; a current detector that detects an output current at the grid node; a frequency measurement unit that measures a frequency of the output voltage at the grid node; a reactive-power measurement unit that measures reactive power at the grid node; and an isolated-operation determination unit that determines whether or not the power conversion system is in an isolated operation as disconnected from the power system. The isolated-operation determination unit includes a reactive-power-fluctuation determination unit that performs a first isolated-operation determination from the reactive power.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: June 5, 2018
    Assignee: Hitachi Information & Telecommunication Engineering, Ltd.
    Inventors: Tomoyuki Hatakeyama, Akira Kikuchi, Fumikazu Takahashi, Kimiaki Taniguchi, Hirofumi Oyamada
  • Patent number: 9969341
    Abstract: The invention relates to an assistance device (17) for an electrical power generation system (11) of an aircraft, said system (11) comprising a generator (13), a regulator (14) and a contactor (15) comprising contacts and an actuator for opening/closing the contacts which is controlled by said regulator (14) and arranged between the generator (13) and a distribution architecture (12), the assistance device being characterized in that it is connected to at least one power source (18) which is separate from the generator (13) and the regulator (14), and in that it comprises means for closing the contactor which are suitable for connecting the power source (18) to the actuator (23) of the contactor (15) in order to provide the current necessary for closing said contactor (15).
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: May 15, 2018
    Assignee: LABINAL POWER SYSTEMS
    Inventors: Pierre Henrard, Nicolas Carre, Bruno Chapotin
  • Patent number: 9960711
    Abstract: The systems, methods, and devices of the various embodiments provide single phase inverters that may be cooperatively controlled to provide one, two, or three phase unipolar electricity. In an embodiment, a solar panel may be connected to a DC to DC converter and a unipolar power converter. In an embodiment, the unipolar power converter output may be a single phase signal approximating a desired voltage waveform and frequency, offset from the ground electrical potential such that the voltage output signal may be always positive, thus “unipolar”. In an embodiment, the unipolar power output of each string of solar panels may be connected to a dedicated, predetermined phase of a load, such as a three phase grid system. In an embodiment, the DC output of a DC to DC converter may be connected in parallel with other DC to DC converters and other unipolar converters.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: May 1, 2018
    Inventors: Sorin Spanoche, Mika Nuotio, David Stewart
  • Patent number: 9919812
    Abstract: A system and method for monitoring a critical component (e.g., an electrical deicing heater) on an aircraft. A first electrical current is input into the critical component, a second electrical current is returned from the critical component, and an electrical differential current of the critical component is detected. The electrical differential current is the difference between the first electrical current and the second electrical current. An electrical differential current signal is generated from the detected electrical differential current. The electrical differential current signal is compared to a differential current threshold, and precautionary action is triggered based on the comparison. A deterioration trend of the critical component is monitored by tracking variations in the electrical differential current of the critical component over time.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: March 20, 2018
    Assignee: The Boeing Company
    Inventor: Fong Shi
  • Patent number: 9906190
    Abstract: A solar panel soiling monitoring system is provided for measuring soiling losses on a photo-voltaic system. The solar panel monitoring system includes: a soil monitoring panel including a plurality of arranged photovoltaic cells connected in series to one another; a measurement unit in electronic communication with a switchbox for controlling measurements of each of the photovoltaic cells; a communication unit in electronic communication with the measurement unit; and a data storage system in electronic communication with the communication unit including a processor, a computer readable storage medium, and one or more computer programs operable on the data storage system. The data storage system determines soiling conditions of the soil monitoring panel based on measured short circuit currents of each of the plurality of photovoltaic cells of the soil monitoring panels.
    Type: Grant
    Filed: June 6, 2016
    Date of Patent: February 27, 2018
    Inventor: Ryan Bower Jones
  • Patent number: 9906032
    Abstract: An electrical energy transmission system has a three-phase electric current power source generating a three-phase current including three currents of different phases, a three-phase current converting device which converts at least some of the currents, a single-wire electric current transmission line configured to transmit the converted currents to a consumer, and a balancing device configured to balance the electric currents in the three-phase current source and providing thereby a stable operation of the three-phase current power source.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: February 27, 2018
    Assignee: GB ENERGY LLC
    Inventor: Alexander Bronsthein
  • Patent number: 9897640
    Abstract: A fault arc detection method includes: sampling an instantaneous current value of a circuit; using the instantaneous current value to predict a current peak value and, when the predicted current peak value is greater than a predetermined threshold, determining that a first energy fault arc is to appear; and comparing a time domain or frequency domain feature of the instantaneous current value with a reference time domain feature or a reference frequency domain feature of the current of a fault arc of the circuit. When the similarity between the time domain or frequency domain feature and the reference time or reference frequency domain feature of the current of the fault arc reaches a predetermined range, a second energy fault arc is determined to appear. The method and detection device detect the occurrence of a fault arc early and they are able to distinguish different types of fault arcs.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: February 20, 2018
    Assignee: Siemens Aktiengesellschaft
    Inventors: Wei Gang Chen, Feng Du, Sebastian Haas, Yue Zhuo
  • Patent number: 9845012
    Abstract: A method for predicting mechanical failure of a traction motor in a vehicle includes monitoring first characteristics of an electrical signal supplied to a traction motor of a vehicle during a first detection window. The first characteristics represent a first motor electrical signature for the traction motor. The method also includes deriving one or more signature values from a first mathematical model of the first motor electrical signature and predicting a mechanical failure of the traction motor based on the one or more signature values.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: December 19, 2017
    Assignee: General Electric Company
    Inventors: Yinghui Lu, Ajith Kuttannair Kumar
  • Patent number: 9834108
    Abstract: A method and system of notifications for an electric vehicle are provided. A method of notification includes receiving, from an electric vehicle supply equipment (EVSE), a charge for a first vehicle. The method may further include scanning, by the first vehicle, an identifier of a second vehicle parked in tandem with the first vehicle. The method may also include sending, via the EVSE, by the first vehicle, a notification request including the identifier of the second vehicle.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: December 5, 2017
    Assignee: Honda Motor Co., LTD.
    Inventor: Alvin T Yuan