Diverse Sources Patents (Class 307/21)
  • Patent number: 12009670
    Abstract: Provided is a power management apparatus for determining an order of priority with respect to power supply to a consuming device at a target location in a power system that includes a plurality of locations between which power can be interchanged, the target location including at least the consuming device, a power generation unit that generates power from natural energy, a power storage unit, and a commercial power source. The power management apparatus includes a determination unit for determining an order of priority among a plurality of controlled objects including at least power supply from the power generation unit, power supply from the power storage unit, power supply from the commercial power source, and power consumption reduction by transferring a load from the consuming device, and a priority setting unit for setting the order of priority that has been determined by the determination unit for the target location.
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: June 11, 2024
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Naoki Hanaoka, Toshihiro Hayashi, Hidetoshi Takada
  • Patent number: 11456601
    Abstract: In one embodiment, a generation facility for producing electricity includes one or more electricity generating elements for producing electricity from a renewable energy source. The generation facility also includes a controller conductively coupled to: (1) a first conductive path leading from the one or more electricity generating elements; (2) a second conductive path leading to a public utility network; and (3) a third conductive path leading to an energy storage system for storing electrical energy. The energy storage system is also conductively coupled to a fourth conductive path leading to the public utility network. The controller includes one or more processors coupled to a non-transitory computer readable storage media embodying software that is operable when executed by the processors to determine whether to send electricity generated by the one or more electricity generating elements to the energy storage system.
    Type: Grant
    Filed: August 8, 2021
    Date of Patent: September 27, 2022
    Assignee: D&D Patent and Trademark Holding Company, LLC
    Inventors: Dennis Emberling, David Shimon
  • Patent number: 11404876
    Abstract: A system includes a source configured to provide power to a medium-voltage direct current (MVDC) bus. The system also includes a plurality of rotating electrical machines configured to receive the power from the MVDC bus. The rotating electrical machines are arranged in a cascaded configuration. One of the rotating electrical machines is configured to act as a slave to another of the rotating electrical machines. Each rotating electrical machine is mechanically connected to an inertial energy storage. The system further includes a plurality of isolated battery or ultra-capacitor subsystems electrically connected to each rotating electrical machine. The battery or ultra-capacitor subsystems are configured to receive electrical energy from and provide electrical energy to each rotating electrical machine and the connected inertial energy storage.
    Type: Grant
    Filed: November 4, 2020
    Date of Patent: August 2, 2022
    Assignee: Raytheon Company
    Inventor: Stephen Kuznetsov
  • Patent number: 11018599
    Abstract: A DC-to-DC transformer converts power from an input source to a load using a fixed voltage transformation ratio. The density of point of load power conversion may be increased and the associated power dissipation reduced by removing the input driver circuitry from the point of load where it is not necessary. An output circuit may be located at the point of load providing fault tolerant rectification of the AC power from the secondary winding of a power transformer which may be located nearby the output circuit. The driver circuit may drive a plurality of transformer-output circuit pairs. The transformer and output circuit may be combined in a single module at the point of load. Alternatively, the output circuit may be integrated into point of load circuitry such as a processor core. The transformer may be deployed near the output circuit.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: May 25, 2021
    Assignee: Vicor Corporation
    Inventor: Patrizio Vinciarelli
  • Patent number: 10951033
    Abstract: The present invention relates to a method for controlling the frequency of a stand-alone microgrid wherein an energy storage device of the stand-alone microgrid is operated as a main power source by controlling a battery power conditioning system (PCS) of the stand-alone microgrid in a constant voltage constant frequency (CVCF) mode. According to the present invention, it is possible to operate the frequency stably while considering the fuel cost and power generation efficiency of a stand-alone microgrid.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: March 16, 2021
    Assignee: KOREA ELECTRIC POWER CORPORATION
    Inventors: Woo-Kyu Chae, Hak-Ju Lee, Jung-Sung Park, Jong-Nam Weon, Jun-Bo Sim
  • Patent number: 10535999
    Abstract: A power control system includes a storage cell and a power control apparatus. The storage cell is configured to allow allocation of predetermined storage capacities to a plurality of consumer facilities each including a load apparatus. The power control apparatus including a controller configured to control charging and discharging of the storage cell. The controller receives a charging or discharging instruction for the storage cell from the plurality of consumer facilities. The controller accepts a charging or discharging instruction newly received from one of the plurality of consumer facilities when an aggregated charging and discharging amount falls within a storage capacity allocated to the one of the plurality of consumer facilities.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: January 14, 2020
    Assignee: KYOCERA Corporation
    Inventor: Hiroyuki Hidaka
  • Patent number: 10333308
    Abstract: A computer-implemented method for controlling voltage fluctuations of a microgrid including a plurality of distributed generators (DGs) is presented. The computer-implemented method includes collecting, by a resiliency controller, measurement data from the microgrid, using a model predictive control (MPC) module to distribute reactive power to each of the DGs of the microgrid, and using a droop based controller to guide operation of each of the DGs of the microgrid.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: June 25, 2019
    Assignee: NEC Corporation
    Inventors: Feng Guo, Ratnesh Sharma, Siqi Wang
  • Patent number: 10211660
    Abstract: A lighting device system includes light emitters where a battery powers the light emitters. A battery supplies the power for powering the light emitters and a driver is arranged to selectively power the light emitters to adjust an operating parameter of the at least one light emitter based on the charge status of the battery. The driver may be in communication with a GNSS receiver that provides geospatial information used to adjust the at least one parameter. The driver may power the light emitters according to a non-adaptive light level profile and an adaptive light level profile where the light emitters consume less energy when operated under the adaptive light level profile than when operated under the non-adaptive light level profile. A processing device operatively coupled to memory determines, based on a state of charge of the battery, which profile to run.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: February 19, 2019
    Assignee: Cree, Inc.
    Inventors: Robert Underwood, John Roberts
  • Patent number: 10183583
    Abstract: An inverter includes a battery pack connection for supplying energy to or receiving energy from a photovoltaic string, a battery pack, an AC grid connection for supplying power to or receiving power from an AC grid, a connection for supplying power to a home back-up load, an electric vehicle connection for supplying to and receiving power from an electric vehicle (EV) battery, and a control input configured to receive one or more control signals for controlling the flow of power within the inverter. The inverter, under the control of the one or more control signals, converts power received from one of different power sources and provides the converted power to charge a battery of the EV.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: January 22, 2019
    Assignee: SolarCity Corporation
    Inventor: Sandeep Narla
  • Patent number: 10138930
    Abstract: The present invention relates to a natural gas hydrate tank container loading system for transporting natural gas hydrate, and the present invention provides a natural gas hydrate tank container loading system which enables automated connection of an electric power line and a boil-off pipe, and may automatically connect an electric power line and automatically connect the pipe by simultaneously stacking respective natural gas hydrate tank containers, in order to solve problems of a transportation method using the existing natural gas hydrate tank containers in the related art in that an operation of connecting an electric power line to a refrigerator for minimizing the occurrence of boil-off gas and maintaining a phase equilibrium condition in the tank containers and an operation of connecting the pipe for discharging the boil-off gas need to be manually and individually performed for long-distance transportation of a large amount of natural gas hydrate by using a ship, which causes an inconvenience.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: November 27, 2018
    Assignee: KOREA INSTITUTE OF OCEAN SCIENCE AND TECHNOLOGY
    Inventors: Hee Jin Kang, Gyeong Joong Lee, Beom Jin Park
  • Patent number: 9866022
    Abstract: When an AC line of one local system and a power system are in a parallel-off state, a control device included in a power supply system causes local inverter devices of the local systems to operate in a parallel-off operation mode in which control is performed such that the voltage and frequency of power on the AC line is at a target voltage and a target frequency determined according to the state of charge of a power storage device. When a condition for switching to the connected state has been satisfied, the control device stops operation of the local inverter device in the parallel-off operation mode and causes a switch to the connected state by operating the interrupting device, and thereafter causes the local inverter device to operate in a charging operation mode used in charging the power storage device with supplementary power received from the power system.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: January 9, 2018
    Assignees: Osaka Gas Co., Ltd., Wind Engineering Center Co., Ltd.
    Inventors: Kunihiro Nakao, Koji Yakire, Tomoyuki Hirai, Satoshi Nagata
  • Patent number: 9825322
    Abstract: A method facilitates storing and discharging renewable energy. The method includes applying an electrical potential across a membrane comprising an oxygen ion conducting material during an energy storage cycle, transporting oxygen through the membrane to move oxygen from ambient air to a storage chamber during the energy storage cycle, subsequent to the energy storage cycle, applying an oxygen partial pressure differential across the membrane during an energy discharge cycle, transporting oxygen ions in an opposite direction through the membrane during the energy discharge cycle; and generating an electric current in at least one electrical circuit electrically connected to the membrane during the energy discharge cycle.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: November 21, 2017
    Assignee: HiFunda LLC
    Inventors: Balakrishnan Nair, Jesse Alan Nachlas
  • Patent number: 9774186
    Abstract: A power supply system is operable to contemporaneously supply power to multiple output ports when available power from a power source is insufficient to meet maximum potential power requirements of load devices coupled to the output ports. The power supply system includes a system monitor, multiple power converters, and optional temperature sensing circuits, where each power converter supplies power to a respective output port. The system monitor monitors an output power characteristic of the power source, output powers delivered to the output ports, and/or temperatures detected by the temperature sensing circuits. When the system monitor detects an overload condition is approaching based on the monitored parameter or parameters, the system monitor generates control signals which cause the power converters to maintain or reduce their output powers such that the overload condition is abated and two or more output ports continue to deliver output power to their respective load devices.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: September 26, 2017
    Assignee: GOOGLE TECHNOLOGY HOLDINGS LLC
    Inventors: Wayne G. Anderson, Robert M. Johnson, Daniel S. Rokusek
  • Patent number: 9413195
    Abstract: A distribution manager includes a main bus, a first connection coupled to the main bus through a first circuit breaker and being structured to couple the distribution manager to an inter-microgrid connection system, a second connection coupled to the main bus through a second circuit breaker and being structured to couple the distribution manager to the inter-microgrid connection system, and a third circuit breaker coupled to the main bus and being structured to be coupled to a load. The distribution manager is configured to detect an overload condition and in response thereto (i) request to bring an offline distributed source online, (ii) if an offline distributed source cannot be brought online, request to shed the load, and (iii) if the load cannot be shed, cause the second circuit breaker to downwardly adjust the trip curve thereof.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: August 9, 2016
    Assignee: EATON CORPORATION
    Inventors: Charles John Luebke, Thomas J. Schoepf
  • Patent number: 9018795
    Abstract: The objective of this invention is to provide an autonomous distributed electric power system without depending on a known electric power system. In order to achieve such objective, this invention proposes a following feature: Output frequencies of autonomous grid-connection inverters (104, 164) are to be variably controlled by the control system depending on a change of a stored electric power amount [kWh] of the direct current electric power storage device (102) within an alternating-current autonomous-distributed electric power system; and, such electric power system is built of plural electric power supplier and demander (11, 12, 13, 14, 15) who have electric power storage devices with a system which can control such inverters (104, 164); those inverters are voltage self-exciting as well.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: April 28, 2015
    Assignee: VPEC, Inc.
    Inventors: Kaoru Koyanagi, Satoshi Nagata
  • Patent number: 8866334
    Abstract: The placement of fully available prime movers having a DC output at a location inside or adjacent to an inverter-based intermittently available renewable energy site is disclosed. The fully available prime movers add reliability to an unreliable energy asset that is reaching its maximum penetration within the grid due to its unpredictability and the requirement for additional spinning reserves in other parts of the grid. The present invention can provide a portion or all of the power to an intermittently available renewable power generating facility so that the power output to the power grid is dispatchable power. In particular, a method and means are disclosed to utilize high-efficiency engines operated on various fuels some of which may be non-fossil fuels to maintain a constant power output from an otherwise intermittent power generating facility.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: October 21, 2014
    Assignee: ICR Turbine Engine Corporation
    Inventors: Frank Wegner Donnelly, David William Dewis
  • Publication number: 20140300186
    Abstract: There is described a lighting system for vehicles comprising light emitting diodes mounted on printed circuit boards (PCBs). Auxiliary components such as speakers are mounted on some of the PCBs lighting modules which are connected in an end-to-end relationship and which form light rows of the lighting system. Electrical traces for the auxiliary components form part of the PCBs. This results in a substantial reduction in or elimination of wiring. Connectors at each end of a PCB are compatible with the connectors on a neighboring PCB and are optionally connectable with a respective corresponding connector assembly of another lighting module in a direction substantially normal to the planar mounting surface of the PCB or in a direction substantially parallel to the planar mounting surface.
    Type: Application
    Filed: April 9, 2013
    Publication date: October 9, 2014
    Inventors: Jean-Pierre Magalhaes Grave, Carl Lavertu, Daniel Lee, Richard Germain
  • Publication number: 20140070609
    Abstract: A radio unit for a plant of process automation technology. The radio unit has a power circuit, which serves to derive first and second supply voltages from a voltage source, wherein the power circuit has a first output, via which the first supply voltage is tappable to serve for driving an operating electronics of the radio unit, wherein the power circuit has at least a second output, via which the at least a second supply voltage is tappable to serve for driving at least one field device connectable to the second output.
    Type: Application
    Filed: April 24, 2012
    Publication date: March 13, 2014
    Applicant: Endress + Hauser Process Solutions AG
    Inventors: Marc Fiedler, Ingo Laible
  • Publication number: 20140032006
    Abstract: A mine power management system includes: a first power line provided at an ascent and configured to exchange electric power with an ascending vehicle traveling on the ascent; a second power line provided at a descent and configured to exchange electric power with a descending vehicle traveling on the descent; and a power supply and storage apparatus configured to exchange electric power at least between the first power line and the second power line.
    Type: Application
    Filed: May 9, 2012
    Publication date: January 30, 2014
    Applicant: KOMATSU LTD.
    Inventors: Masanori Tojima, Kouichi Yamashita, Tsugio Sudou, Koji Takeda, Takao Nagai, Katsuhiro Kajino, Yasuhiro Yanagida, Yasuyuki Suzuki
  • Publication number: 20130249446
    Abstract: Discharge is stopped when a voltage of a battery becomes smaller than a defined value or a remaining capacity of the battery reaches 0, and further, when power to a system cannot be maintained, the system is automatically shut down to be put into a shutdown state. When it is determined that the voltage of the battery or an SOC from a battery monitor 11 is smaller than the defined value, a discharge control switch 22 is turned off. A voltage Vx corresponding to a voltage between terminals T1 and T2 is input to an A/D port of a controller 21 and a value thereof is monitored. When it is determined that the voltage Vx input to the A/D port is smaller than a defined value, the controller 21 turns off a switch circuit 12 to turn off power to the battery monitor 11.
    Type: Application
    Filed: October 12, 2011
    Publication date: September 26, 2013
    Applicant: Sony Corporation
    Inventor: Eiji Kumagai
  • Publication number: 20120326502
    Abstract: An apparatus for eliminating electricity leakage from an electronic device connected to a power supply, while the electronic device is in switched-off or stand-by state is disclosed. The apparatus comprises of a charging module connected to at least one rechargeable battery for selectively providing electricity from the power supply to the rechargeable battery while the electronic device is in switched-on state. An isolation module is provided for isolating the power supply from the electronic device while the electronic device is in switched-off or standby state and restoring the power supply when the electronic device is in switched-on state. A back up module connected to the rechargeable battery, providing power to at least one active component from the rechargeable battery such that at least one active component remains operational even when the electronic device is in switched-off or standby state.
    Type: Application
    Filed: June 26, 2012
    Publication date: December 27, 2012
    Inventors: Hap NGUYEN, John J. FISCHER, Tinh H. HOANG
  • Patent number: 8319370
    Abstract: A grid interconnection device 100 comprises a receiver configured to receive an adjustment instruction and a controller configured to control a backward flow power on the basis of the adjustment instruction. The adjustment instruction includes group information indicating an application group to which the adjustment instruction is applied among a plurality of groups G. Customers 30 (each includes a power supply device) are grouped depending on the distance from a substation.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: November 27, 2012
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Kazuo Itoh, Masahiro Makino, Toshiyuki Hirata
  • Patent number: 8295988
    Abstract: Voltage of a utility grid is reliably and swiftly restored, which decreased due to a utility grid failure or the like, to reference voltage. A generator is connected to a utility grid. A voltage detecting section detects voltage of a utility grid. A control section determines reactive current corresponding to the voltage obtained from the voltage detecting section based on voltage current correlation information in which the voltage of the utility grid and the reactive current to be supplied to the utility grid are correlated with each other. An electric power converting section regulates the reactive current to be supplied to or absorbed from the utility grid.
    Type: Grant
    Filed: May 1, 2009
    Date of Patent: October 23, 2012
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventor: Akira Yasugi
  • Patent number: 8278868
    Abstract: An environmental power generation device may include a base, a turbine mounting structure carried by the base and a wind turbine carried by the turbine mounting structure. The environmental power generation device may also include a power generator in communication with the wind turbine. The power generator may include a rotor in communication with the wind turbine, and a stator in rotational communication with the rotor. The environmental power generation device may further include a solar cell mounting structure connected to the base, and a solar cell connected to the solar cell mounting structure and positioned to overlie the wind turbine.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: October 2, 2012
    Inventor: Guy Caudill
  • Publication number: 20120200156
    Abstract: One example embodiment includes a system for generating electrical power for a port. The system includes a power generator, where the power generator is configured to convert energy within a body of water to electrical power. The system also includes a power storage, where the power storage is configured to receive the electrical power and store the electrical power for future use. The system further includes a power transfer, where the power transfer is configured to direct the electrical power to the location of use.
    Type: Application
    Filed: February 8, 2012
    Publication date: August 9, 2012
    Inventor: Chuck Weller
  • Patent number: 8207628
    Abstract: A power converter that gives priority to the high power output and only provides power to the low power output when the total potential output power is equal to or less than the rated power of the power converter. A specific power threshold is established, and when the high power output remains below this threshold for a period of time the low power output is allowed to turn on. If the high power output subsequently exceeds this threshold for a period of time, then an electronic circuit powers down the low power output in order to keep the total output power below the rated power of the power converter. Subsequently, the high power output is checked against the threshold to determine if the low power output can be turned on again. If the high power output is below the threshold, then the low power output is turned on.
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: June 26, 2012
    Assignee: Igo, Inc.
    Inventors: Garry DuBose, Ann Briggs
  • Publication number: 20120049622
    Abstract: An offshore compound renewable power plant, which is built in an on-sea plant site, includes marine platforms set up in the on-sea plant site in a spaced manner and wind power generation systems respectively installed on the marine platforms for receiving winds to generate electrical power. An ocean energy based electrical power generation system or a marine production system is further included in the on-sea plant site, whereby the wind power generation systems and the ocean energy based electrical power generation system can collectively supply an output of electrical power together, or the marine production system receives electrical power from the wind power generation systems for performing a desired operation. With such an arrangement, diverse operations can be performed in the on-sea plant site to advance the efficiency of development and exploitation thereof.
    Type: Application
    Filed: August 25, 2010
    Publication date: March 1, 2012
    Inventors: JAMES YOUNG, Yaw-Chung Cheng, Shou-Shan Chen
  • Publication number: 20110260533
    Abstract: A sustainable structure is provided that is powered by a rechargeable battery that is charged by alternating wind and solar energy generators.
    Type: Application
    Filed: March 17, 2011
    Publication date: October 27, 2011
    Inventor: Bradley Spencer Hardin
  • Patent number: 8041466
    Abstract: The invention relates to a method for operating a wind turbine connected to a utility grid during a utility grid disturbance. The method comprises the steps of controlling active current in dependency of the frequency deviation from a reference frequency, and controlling reactive current in dependency of the voltage deviation from a reference voltage. The invention also relates to a wind turbine and wind park.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: October 18, 2011
    Assignee: Vestas Wind Systems A/S
    Inventors: Lars Helle, John Godsk Nielsen, Mark James Jensen
  • Publication number: 20110215640
    Abstract: The placement of fully available prime movers having a DC output at a location inside or adjacent to an inverter-based intermittently available renewable energy site is disclosed. The fully available prime movers add reliability to an unreliable energy asset that is reaching its maximum penetration within the grid due to its unpredictability and the requirement for additional spinning reserves in other parts of the grid. The present invention can provide a portion or all of the power to an intermittently available renewable power generating facility so that the power output to the power grid is dispatchable power. In particular, a method and means are disclosed to utilize high-efficiency engines operated on various fuels some of which may be non-fossil fuels to maintain a constant power output from an otherwise intermittent power generating facility.
    Type: Application
    Filed: March 2, 2011
    Publication date: September 8, 2011
    Applicant: ICR TURBINE ENGINE CORPORATION
    Inventors: Frank Wegner Donnelly, David William Dewis
  • Publication number: 20110175443
    Abstract: The objective of this invention is to provide an autonomous distributed electric power system without depending on a known electric power system. In order to achieve such objective, this invention proposes a following feature: Output frequencies of autonomous grid-connection inverters (104, 164) are to be variably controlled by the control system depending on a change of a stored electric power amount [kWh] of the direct current electric power storage device (102) within an alternating-current autonomous-distributed electric power system; and, such electric power system is built of plural electric power supplier and demander (11, 12, 13, 14, 15) who have electric power storage devices with a system which can control such inverters (104, 164); those inverters are voltage self-exciting as well.
    Type: Application
    Filed: March 12, 2009
    Publication date: July 21, 2011
    Applicant: VPEC, INC.
    Inventors: Kaoru Koyanagi, Satoshi Nagata
  • Patent number: 7834479
    Abstract: A method and system for operating a mini-grid including one or more power generation sources and one or more loads independently from a utility grid is provided, where the mini-grid is disconnected from the utility grid in response to a power disruption over the utility grid. A universal interconnect device forms a connection between the mini-grid and the utility grid. In the disconnected state, the mini-grid operates independently from the utility grid, such that the power generation sources of the mini-grid supply the loads. Frequency and voltage regulation are provided by the universal interconnect device through a monitoring function performed by a controller in conjunction with at least an energy storage device, which can absorb or generate power as needed.
    Type: Grant
    Filed: March 1, 2006
    Date of Patent: November 16, 2010
    Assignee: Beacon Power Corporation
    Inventors: F. William Capp, Matthew L. Lazarewicz, Hernan Alex Rojas
  • Patent number: 7741731
    Abstract: A PWM power regulator device has a processor, an input interface circuit, a zero phase detecting circuit and a thyristor. The input interface circuit is connected to a PWM output terminal of an external digital control circuit and the processor. The processor calculates a period and duty cycle of a PWM signal from the PWM output terminal and then outputs a triggering signal to the thyristor. The thyristor is triggered at different conduct angle according to the triggering signal and the triggering signal is determined by the processor according to the PWM signal. Therefore, the power regulator device is directly connected to the PWM output terminal of the digital control circuit without digital to analog converter.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: June 22, 2010
    Assignee: Arico Technology Co., Ltd.
    Inventor: Nan-Cheng Chiang
  • Patent number: 7714461
    Abstract: Apparatus, systems, and methods for reducing resonance in a multiple inverter system are provided. One apparatus includes an inverter coupled to a decoupling element, wherein the inverter and the decoupling elements are couplable to a power source. A system includes a motor vehicle power source including first positive and negative terminals, and a plurality of inverters coupled to the power source. Each inverter includes a second positive terminal coupled to the first positive terminal and a second negative terminal coupled to the first negative terminal. A first inverter of the plurality of inverters includes a decoupling element coupled between the first positive terminal and the positive terminal of the first inverter. One method includes operating first and second inverters at different frequencies, and controlling the impedance of a decoupling element coupled between a power source and the first inverter based on the second inverter frequency.
    Type: Grant
    Filed: October 17, 2007
    Date of Patent: May 11, 2010
    Assignee: GM Global Technology Operations, Inc.
    Inventor: Brian A. Welchko
  • Patent number: 7709978
    Abstract: It is normal practice in automation to network individual components of an installation via bus lines, with this network carrying out a multiplicity of communication and supply tasks during operation. In at least one embodiment, a system interface, as well as an installation which uses this interface, are disclosed with the operational reliability of the installation being improved. In at least one embodiment, a system interface is proposed for connection of a bus line to an actuator assembly in a control system with a K connection for connection of a communication channel and with a K-U connection for connection of a communication voltage supply channel, and an A-U connection for connection of an actuator voltage supply channel.
    Type: Grant
    Filed: September 4, 2007
    Date of Patent: May 4, 2010
    Assignee: Siemens Aktiengesellschaft
    Inventors: Stefan Beyer, Josef Graf, Peter Hauselt
  • Patent number: 7701082
    Abstract: An apparatus for regulating voltage and aerospace electrical power systems are implemented. A multi-functional apparatus for regulating voltage, according to one embodiment, comprises: a DC to DC converter (315), wherein the DC to DC converter (315) is controlled to operate in a first direction to receive a DC voltage from a first bus (329) and to output a first regulated DC voltage adjusted to charge a battery (307), wherein the first bus (329) receives power from a second bus (201), and is controlled to operate in a second direction to receive a battery DC voltage from the battery (307) and to output a second regulated DC voltage to the first bus (329) to power a load (231) independently or in combination with the second bus (201).
    Type: Grant
    Filed: October 30, 2006
    Date of Patent: April 20, 2010
    Assignee: Honeywell International Inc.
    Inventors: David Lazarovich, Srinivasa R. Dangeti, Ileana Rusan
  • Patent number: 7602075
    Abstract: The disclosure describes implementations of methods, systems and apparatuses that are configured to facilitate normal operating characteristics for a wind turbine during normal operation, as well as during voltage irregularities. In an implementation, a turbine controller coordinates operating primary turbine systems and ancillary turbine systems during normal operation and during voltage irregularities. During normal operation, the turbine controller coordinates powering both primary and ancillary turbine systems through a power supply. During a detected voltage event, ancillary turbine systems may be transitioned to a having an uninterruptible power supply power these systems. However, the turbine controller coordinates maintaining the power supply as the sole powering device for primary turbine systems despite a voltage irregularity.
    Type: Grant
    Filed: July 5, 2007
    Date of Patent: October 13, 2009
    Assignee: Acciona Windpower, S.A.
    Inventors: William Erdman, Michael Behnke, Ricardo Royo Garcia, Miguel Nunez Polo
  • Publication number: 20090189445
    Abstract: An integrated system of renewable energy management and storage that receives direct current generated from renewable sources and intelligently routes the electrical power between a direct current circuit and an alternating current circuit, and at the same time determines the optimal routing for electrical storage based on usage and demand. Electrical power from the direct current circuit can be converted to alternating current electrical power and supplied to the alternating current circuit, or vice versa. Electrical power from either the direct current circuit or the alternating current can be stored in the energy storage subsystem. Electric energy can be further converted to and stored as gaseous hydrogen and can supply for other applications that consume gaseous hydrogen. The system can work with a connection to a utility grid or as a stand-alone system.
    Type: Application
    Filed: January 22, 2009
    Publication date: July 30, 2009
    Applicant: Renewable Energy Holdings, LLC
    Inventor: Michael Strizki
  • Patent number: 7498689
    Abstract: A power supply device for vehicles is disclosed, which device includes a backup unit to the power supply as an auxiliary power supply employing a capacitor unit formed of plural capacitors. The auxiliary power supply includes a power supply section allowing the capacitor unit to power an electronic controller, and a compulsory operating section for operating the power supply section. An operating status of the power supply section is monitored even when a battery operates normally, so that the power supply device for vehicles with higher reliability and improved safety is obtainable.
    Type: Grant
    Filed: June 24, 2004
    Date of Patent: March 3, 2009
    Assignee: Panasonic Corporation
    Inventors: Yosuke Mitani, Toshihiko Ohashi
  • Patent number: 7489051
    Abstract: The present disclosure provides a method and system using a power protector, such as an uninterruptible power supply (power protector) or a power line conditioner. An input of the power protector can be coupled to an output of one or more of circuit breakers using electrical buss bars for unique modularity and easy installation and replacement. Further, an input of a second set of circuit breakers can be coupled to an output of the power protector to backfeed the power through the second set of circuit breakers and out through the buss bar to one or more electrical loads. Additional power protectors can be used for capacity and/or redundancy. A stacked buss bar system can be used that consolidates the system into a compact assembly heretofore unknown in the industry. In at least some embodiments, the system can be compatible with standard panelboards having circuit breakers disposed therein.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: February 10, 2009
    Assignee: Liebert Corporation
    Inventors: John S. Fuchik, James K. Martin, Russell E. Shetler, Jr., William A. Barcus, Peter A. Panfil
  • Publication number: 20090015064
    Abstract: The present invention discloses a selective independent overload and group overload protection circuit of a power supply. In the power supply, each of a plurality of loads that require a larger power output has an independent overload protection circuit, and the load is connected to a group overload protection circuit, such that a user can select to turn on the independent overload protection circuit or a group overload protection circuit that allows a larger power output and facilitates the user to select an appropriate power output according to the capacity requirement of the load.
    Type: Application
    Filed: July 10, 2007
    Publication date: January 15, 2009
    Applicant: SILVER-STONE TECHNOLOGY CO., LTD.
    Inventor: Hsin-Sheng Huang
  • Publication number: 20080278000
    Abstract: A method and system for operating a mini-grid including one or more power generation sources and one or more loads independently from a utility grid is provided, where the mini-grid is disconnected from the utility grid in response to a power disruption over the utility grid. A universal interconnect device forms a connection between the mini-grid and the utility grid. In the disconnected state, the mini-grid operates independently from the utility grid, such that the power generation sources of the mini-grid supply the loads. Frequency and voltage regulation are provided by the universal interconnect device through a monitoring function performed by a controller in conjunction with at least an energy storage device, which can absorb or generate power as needed.
    Type: Application
    Filed: March 1, 2006
    Publication date: November 13, 2008
    Inventors: F. William Capp, Matthew L. Lazarewicz, Hernan Alex Rojas
  • Patent number: 7420294
    Abstract: A power switching module provides power to a line amplifier in a broadband telecommunications network. The switch includes a first input port for connection to a first power source, a second input port for connection to a second power source, an input/output port for connection to a cable connecting the line amplifier with a remote amplifier, and an output port for connection to the line amplifier. A controller controls selection of the power source and provides power to the line amplifier from one the input ports and can provide power to, or receive power from, a power supply associated with the remote amplifier via the input/output port. A switch allows selection of a primary mode of operation or a secondary mode of operation. Another switch allows selection of a first operating voltage range or a second voltage operating range. A monitoring circuit communicates status information about the switching module to a remote location.
    Type: Grant
    Filed: December 23, 2005
    Date of Patent: September 2, 2008
    Assignee: MAYA Industries Limited
    Inventors: George F. Taylor, Ofer Raviv
  • Patent number: 7362005
    Abstract: An isolated dual power source system for isolating a first power source of a vehicle, connected to an engine starter, from a second power source of the vehicle which has an electrical circuit for distributing electrical power among the consumers, includes first and second switches for selectively connecting the first and second power sources to the electrical circuit, respectively. The system may include a controller that independently and operatively connects to the first and second switches to control operation thereof for selective and respective isolation from the electrical circuit. A third switch connecting the second power source to the starter may be used to selectively provide power thereto and bypass the first power source to start the engine.
    Type: Grant
    Filed: March 10, 2005
    Date of Patent: April 22, 2008
    Assignee: Red Tech Inc.
    Inventor: Jean-Francois Leblanc
  • Patent number: 7170194
    Abstract: A system for supplying additional power to a module having an internal power supply, the system comprising: a module having an associated power supply, the power supply not being designed to accommodate power sharing; at least one load associated with the module, the load receiving power from the power supply; a variable current limited power source connected to the module supplying additional power to the at least one load; and a controller; whereby the variable current limited power supply is responsive to an output of the controller to vary the current limit of the variable current limited power supply.
    Type: Grant
    Filed: January 26, 2004
    Date of Patent: January 30, 2007
    Assignee: PowerDsine, Ltd.
    Inventors: Dror Korcharz, Yair Darshan, Ilan Atias, David Pincu
  • Patent number: 7151326
    Abstract: The present invention is directed to an electrical system and method for providing power to a truck's cab while the truck's engine is turned off. An already available primary power supply of the truck and a secondary power supply generally located on a trailer being hauled by the truck, are used to charge auxiliary power storage units. The secondary power supply is further used to maintain charge of the auxiliary power storage units while the truck's engine is off. The system may provide power to electrical devices within the truck as DC, or as AC by means of an inverter. The system may further include thermostatic controls to protect the secondary power supply when high-voltage electrical devices such as space heaters are being used. Separate operating circuits are employed that include switching means to enable an operator to, or to automatically, control operation of the system.
    Type: Grant
    Filed: September 23, 2003
    Date of Patent: December 19, 2006
    Assignee: Idle Free Systems, L.L.C.
    Inventor: Robert Howard Jordan
  • Patent number: 6593668
    Abstract: A method and apparatus for distributing power in an electronic system including receiving a source power at a system power supply, converting the source power to a plurality of alternating current (AC) signals at multiple frequencies, and transmitting the plurality of AC signals at multiple frequencies to multiple voltage regulator modules (VRMs) in the electronic system.
    Type: Grant
    Filed: December 30, 1999
    Date of Patent: July 15, 2003
    Assignee: Intel Corporation
    Inventor: Josef C. Drobnik
  • Publication number: 20030030326
    Abstract: A power distribution management apparatus for supplying power to two or more loads includes a power and clock distribution controller capable of determining voltage, current and clock signal frequency targets for the loads. The apparatus also includes two or more power sources responsive to the controller so as to be selectively coupled with the loads to provide the target voltage and current to the loads. The power sources have switching frequencies of at least one megahertz. The apparatus further includes two or more clock signal sources responsive to the controller and coupled with the loads so as to provide clock signals to the loads at the target frequencies.
    Type: Application
    Filed: August 12, 2002
    Publication date: February 13, 2003
    Applicant: Shakti Systems, Inc.
    Inventors: Krishna Shenai, Erik A. McShane
  • Patent number: 6037571
    Abstract: The invention is a dual power source high heat electrical grill whose primary application is as an outdoor or indoor grill which uses the combination of AC and DC powered elements in a hybrid configuration to produce as much heat as conventional outdoor gas grills and more than could otherwise be produced by a conventional electric grill.
    Type: Grant
    Filed: June 15, 1998
    Date of Patent: March 14, 2000
    Inventor: Nicholas S. Christopher
  • Patent number: 6026349
    Abstract: An energy storage and distribution system provides energy from a first energy related infrastructure characterized by a first energy grid to a second energy related infrastructure characterized by a second energy grid that is substantially independent of the first energy grid. The system includes an energy storage facility that is located in substantial proximity to a common boundary of the first and second energy related infrastructures, and a first energy transport mechanism that is coupled to the first energy related infrastructure and is capable of providing energy for storage in the energy storage facility. The system also includes a second energy transport mechanism that is coupled to the energy storage facility and is capable of providing energy from the energy storage facility to the second energy related infrastructure. Each of the first and second energy grids has an electrical power generation unit and high voltage A/C transmission lines.
    Type: Grant
    Filed: November 6, 1997
    Date of Patent: February 15, 2000
    Inventor: Helmuth J. Heneman