公开(公告)号：US20240297525A1

公开(公告)日：2024-09-05

申请号：US18582674

申请日：2024-02-21

申请人： JD POWER CO., LTD.

发明人： Jang-Chung Fang

IPC分类号： H02J9/06 ,  H02J3/00 ,  H02J13/00

CPC分类号： H02J9/062 ,  H02J3/0012 ,  H02J9/068 ,  H02J13/00001 ,  H02J13/00002 ,  H02J13/00036 ,  H02J13/00007 ,  H02J13/00022

摘要： A distributed standby power management switch system and a method of use thereof are provided. The distributed standby power management switch system includes a power management switch, at least one standby power management switch, and a loading circuit. The power management switch is connected with the commercial power supply. The at least one standby power management switch is in communication connection with the power management switch and connected to a standby power supply set. Through the loading circuit and a wireless loop or cabled carrier wave to carry out electricity switching, the commercial power supply and the standby power supply set share the same loading circuit for automatically electricity switching. The power management switch and the standby power management switch of the distributed standby power management switch system may automatically switch with each other and may be set with timed switching or may be switched by using a portable device.

公开(公告)号：US12062918B2

公开(公告)日：2024-08-13

申请号：US17880497

申请日：2022-08-03

申请人： Huawei Digital Power Technologies Co., Ltd.

发明人： Xiaolin Mao ,  Heping Dai ,  Huibin Zhu ,  Dianbo Fu

IPC分类号： H02J3/38 ,  H02J7/02 ,  H02J13/00 ,  H02J1/10

CPC分类号： H02J3/381 ,  H02J3/38 ,  H02J3/388 ,  H02J7/02 ,  H02J13/00002 ,  H02J13/00022 ,  H02J1/10 ,  H02J13/00 ,  H02J13/00024 ,  H02J2300/24

摘要： A direct current (DC) bus voltage from a combined output of a plurality of DC power modules is controlled based on an alternating current (AC) voltage of a power grid. The DC bus voltage tracks the AC grid voltage to provide efficient conversion between the DC power sources and the AC grid, even when the amplitude of the AC grid voltage varies. In one example, a variable reference voltage is generated based on a detected AC grid voltage. The reference voltage increases and decreases in proportion to increases and decreases in the AC grid voltage. In this manner, large differences between the bus voltage and the grid voltage are avoided. By closely tracking the two voltages, efficiency in the modulation index for power conversion can be achieved.

公开(公告)号：US12021381B2

公开(公告)日：2024-06-25

申请号：US17926227

申请日：2021-05-04

申请人： University of Manitoba

发明人： Ngai Man Ho ,  Dong Li ,  King Man Siu

IPC分类号： H02J13/00 ,  H02J15/00

CPC分类号： H02J13/00034 ,  H02J13/00016 ,  H02J13/00022 ,  H02J13/00036 ,  H02J15/00 ,  H02J2310/10

摘要： A device for electrically connecting a direct current (DC) microgrid to a DC bus of an electrical power network, which is operating at a higher voltage than the microgrid, comprises a pair of electrical port each configured for connection with either the DC bus or the microgrid; a DC-DC power converter operatively interconnecting the electrical ports for power transmission therebetween from a first voltage at the port connected to the DC bus to a lower second voltage at the port connected to the DC microgrid; a DC circuit breaker connected between the DC-DC power converter and one of the electrical ports for selectively conducting current therebetween; and a controller which is configured to communicate with constituent devices in the DC microgrid as well as a control center representative of the electrical power network in order to exchange information about electrical energy consumption in the DC microgrid and the larger network.

公开(公告)号：US11967821B2

公开(公告)日：2024-04-23

申请号：US17232933

申请日：2021-04-16

申请人： Lutron Technology Company LLC

发明人： Walter S. Zaharchuk ,  Timothy S. Majewski ,  Christopher Buck ,  Daniel Vander Valk ,  John H. Bull ,  Joel S. Spira

IPC分类号： H02J13/00 ,  H02J3/00 ,  H02J3/14 ,  H02J4/00 ,  H02J50/80 ,  H04B7/04 ,  H04B7/06 ,  H04H20/00 ,  H04L12/28 ,  H05B47/10 ,  H05B47/19 ,  G08C17/02 ,  H05B47/165 ,  H05B47/17

CPC分类号： H02J13/00024 ,  H02J3/00 ,  H02J3/14 ,  H02J4/00 ,  H02J13/00004 ,  H02J13/00022 ,  H02J13/00026 ,  H02J50/80 ,  H04B7/04 ,  H04B7/0608 ,  H04H20/00 ,  H04L12/2816 ,  H05B47/10 ,  H05B47/19 ,  G08C17/02 ,  H02J2310/14 ,  H05B47/165 ,  H05B47/17 ,  Y02B70/30 ,  Y02B70/3225 ,  Y02B90/20 ,  Y02D30/70 ,  Y04S20/20 ,  Y04S20/222 ,  Y04S20/244 ,  Y04S20/246 ,  Y04S40/00 ,  Y04S40/126

摘要： A load control system for controlling the amount of power delivered from an AC power source to a plurality of electrical load includes a plurality of independent units responsive to a broadcast controller. Each independent unit includes at least one commander and at least one energy controller for controlling at least one of the electrical loads in response to a control signal received from the commander. The independent units are configured and operate independent of each other. The broadcast controller transmits wireless signals to the energy controllers of the independent units. The energy controllers do not respond to control signals received from the commanders of other independent units, but the energy controllers of both independent units respond to the wireless signals transmitted by broadcast controller. The energy controller may operate in different operating modes in response to the wireless signals transmitted by the broadcast controller.

公开(公告)号：US20240120742A1

公开(公告)日：2024-04-11

申请号：US18276602

申请日：2021-02-10

申请人： NISSAN MOTOR CO., LTD. ,  RENAULT s.a.s.

发明人： Kenta SUZUKI ,  Keigo IKEZOE ,  Kensuke MURAI

IPC分类号： H02J3/32 ,  H02J3/02 ,  H02J7/00 ,  H02J13/00

CPC分类号： H02J3/322 ,  H02J3/02 ,  H02J7/0047 ,  H02J7/00712 ,  H02J13/00022

摘要： A charge/discharge control method for a charge/discharge element includes receiving a request value (Pfr) of a frequency adjustment capacity according to a system frequency (f) of an electric power system (10) based on a priority degree (β) and the request value (Pfr) being received, the priority degree indicating a degree at which charging or discharging of an own element (EV1) is prioritized over charging or discharging of another charge/discharge element (EV2, EV3, . . . ), correcting the output property to increase an upper limit value or a lower limit value of an output range as the priority degree (β) is higher, and performing charging or discharging with an output determined based on a deviation (Δf) between the system frequency (f) measured at a connection end to the electric power system (10) and a reference frequency (fref) of the electric power system (10) and the output property after the correction.

公开(公告)号：US11929612B2

公开(公告)日：2024-03-12

申请号：US17519709

申请日：2021-11-05

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Shigetaka Hamada ,  Haruka Hirose ,  Yusuke Horii ,  Toru Nakamura ,  Takaaki Sano

IPC分类号： H02J3/00 ,  B60L50/70 ,  G05B15/02 ,  H02J13/00 ,  H02J3/46

CPC分类号： H02J13/00022 ,  B60L50/70 ,  G05B15/02 ,  H02J3/00 ,  H02J3/46

摘要： A first switching unit switches a first power grid from an isolated operation to a grid-connected operation. In switching the first power grid from the isolated operation to the grid-connected operation, the first switching unit determines a master and a slave among a plurality of power adjustment resources and allows the first power grid to be connected to the second power grid after master-slave control by means of the master and the slave such that electric power of the first power grid is in synchronization with electric power of the second power grid. The first switching unit preferentially selects as the master, a power adjustment resource close to a point of connection between the first power grid and the second power grid from among the plurality of power adjustment resources.

公开(公告)号：US11906575B2

公开(公告)日：2024-02-20

申请号：US16854776

申请日：2020-04-21

申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION

发明人： Jia Liu ,  Zhiyuan Li ,  Dean Steuer ,  Hyman David Chantz

IPC分类号： G01R31/08 ,  G01R31/28 ,  H02J13/00 ,  G06N20/00

CPC分类号： G01R31/2839 ,  G01R31/2846 ,  G06N20/00 ,  H02J13/00002 ,  H02J13/00022

摘要： A device, system, and a computer-implemented method a for identifying an anomaly in an operation of a device includes comparing, by an electrical power analyzer, a current power draw signature of the device with a known power draw signature of the device. There is a determining as to whether at least one anomaly is present in the current power draw signature. A warning is generated in response to determining the at least one anomaly is present in the current power draw signature.

公开(公告)号：US11799294B2

公开(公告)日：2023-10-24

申请号：US16939544

申请日：2020-07-27

申请人： HONDA MOTOR CO., LTD.

发明人： Sho Takada ,  Nobuyuki Sasaki ,  Mitsuhiro Ito ,  Mio Oshima ,  Ryo Oshima ,  Yoshihiro Matsunaga

IPC分类号： H02J3/38 ,  H02J13/00 ,  G05B19/042 ,  G06Q20/14 ,  G06Q50/06 ,  H02J3/00 ,  H02J1/08 ,  H02J4/00

CPC分类号： H02J3/381 ,  G05B19/042 ,  G06Q20/145 ,  G06Q50/06 ,  H02J1/08 ,  H02J3/00 ,  H02J4/00 ,  H02J13/00002 ,  H02J13/00022 ,  H02J13/00032 ,  G05B2219/2639

摘要： A power supply system comprises a portable first power supply device and second power supply device. The portable first power supply device has a handle to be gripped by a hand of a user. A supply unit of the portable first power supply comprises an inverter circuit which converts at least a portion of excess power into an alternating current, and supplies to the second power supply device via a second connection unit and a power line, power of the alternating current outputted from the inverter circuit.

公开(公告)号：US11735924B2

公开(公告)日：2023-08-22

申请号：US17145793

申请日：2021-01-11

申请人： Enphase Energy, Inc.

发明人： Mohammad Chehreghani Bozchalui

IPC分类号： H02J3/32 ,  H02J13/00

CPC分类号： H02J3/32 ,  H02J13/00001 ,  H02J13/00007 ,  H02J13/00022

摘要： A storage system configured for use with an energy management system is provided and includes a single-phase AC coupled battery or a three-phase AC coupled battery, a plurality of microinverters that are configured to connect to one or more battery cell core pack that form a local grid, and a controller configured to detect when to charge or discharge the single-phase AC coupled battery or the three-phase AC coupled battery so that energy can be stored therein when energy is abundant and used when energy is scarce.

公开(公告)号：US20230208201A1

公开(公告)日：2023-06-29

申请号：US17926555

申请日：2021-05-20

申请人： SINTEF TTO AS

发明人： Tobias Dahl ,  Jostein Thorstensen

IPC分类号： H02J50/30 ,  H02J50/80 ,  H02J50/90 ,  H02J7/35 ,  H02J13/00

CPC分类号： H02J50/30 ,  H02J50/80 ,  H02J50/90 ,  H02J7/35 ,  H02J13/00022

摘要： A system for wirelessly charging at least one device is disclosed. The device has a photovoltaic cell for converting incident light into electrical energy. The system also has a supply unit arranged to transmit a laser beam to the photovoltaic cell of the device. The supply unit is arranged to transmit the laser beam with a first divergence angle during a first mode and a second, narrower, divergence angle during a second mode following the first mode. The supply unit is arranged to change from the first mode to the second mode based on information relating to the location of the device.