公开(公告)号：US20190260305A1

公开(公告)日：2019-08-22

申请号：US16397134

申请日：2019-04-29

申请人： ROHM CO., LTD

发明人： Yuki NAKANO ,  Hiroyuki SAKAIRI

IPC分类号： H02M7/44 ,  H01L29/423 ,  H01L29/78 ,  H01L29/45 ,  H01L29/10 ,  H01L29/16 ,  H01L29/417 ,  H01L27/02 ,  H01L29/43

摘要： A switching device according to the present invention is a switching device for switching a load by on-off control of voltage, and includes an SiC semiconductor layer where a current path is formed by on-control of the voltage, a first electrode arranged to be in contact with the SiC semiconductor layer, and a second electrode arranged to be in contact with the SiC semiconductor layer for conducting with the first electrode due to the formation of the current path, while the first electrode has a variable resistance portion made of a material whose resistance value increases under a prescribed high-temperature condition for limiting current density of overcurrent to not more than a prescribed value when the overcurrent flows to the current path.

公开(公告)号：US10381937B2

公开(公告)日：2019-08-13

申请号：US15539548

申请日：2015-11-11

申请人： Hitachi Automotive Systems, Ltd.

发明人： Shintaro Tanaka ,  Tadahiko Chida ,  Takae Shimada

IPC分类号： H02M3/335 ,  H02M5/42 ,  H02M7/68 ,  H02M3/24 ,  H02M7/44 ,  H02M7/5387 ,  H02M7/538 ,  H02M3/28 ,  H01F29/14

摘要： The present invention aims to provide a power converter, which includes a plurality of switching power supply devices connected in parallel, with a circuit configuration that enables reduction of cost and a size of the power converter. The present invention relates to a power converter including at least a first switching power supply device and a second switching power supply device connected in parallel. A part of high-voltage-compatible switching elements is commonly used between the first switching power supply device and the second switching power supply device, and a drive gate signal of one of the high-voltage-compatible switching elements of the first switching power supply device and the second switching power supply device and a phase difference of a drive gate signal of the commonly used switching power supply device are set to be equal when a load current is a first current value or lower.

公开(公告)号：US10381829B2

公开(公告)日：2019-08-13

申请号：US15472518

申请日：2017-03-29

申请人： Astronics Advanced Electronic Systems Corp.

发明人： Jeffrey A. Jouper ,  John Fifield

IPC分类号： H02H3/16 ,  H02M7/44 ,  H02M7/04 ,  H02J1/00 ,  H02H3/10 ,  H02M1/42 ,  H02J4/00

摘要： A power distribution system including a high-voltage direct current unit (HVDCU) configured to receive an amount of high-frequency alternating current (AC) input power from a power source and convert the input power into DC power, a negative voltage distribution rail and a positive voltage distribution rail that are together configured to supply the high-voltage DC power to at least one control unit (CU) electrically disposed between the negative voltage distribution rail and the positive voltage distribution rail and the CU being configured to convert the DC power into output power compatible with at least one load and supply the output power to the loads associated with it.

公开(公告)号：US20190245353A1

公开(公告)日：2019-08-08

申请号：US16280756

申请日：2019-02-20

申请人： Rajiv Kumar VARMA

发明人： Rajiv Kumar VARMA ,  Vinod KHADKIKAR ,  Shah Arifur RAHMAN

IPC分类号： H02J3/38 ,  H02J3/01 ,  H02J3/18 ,  H02J3/40 ,  H02M7/44 ,  H02J9/00

CPC分类号： H02J3/383 ,  H02J3/01 ,  H02J3/1842 ,  H02J3/386 ,  H02J3/40 ,  H02J9/00 ,  H02M7/44 ,  Y02E10/563 ,  Y02E40/16 ,  Y02E40/22 ,  Y02E40/40 ,  Y10T307/615

摘要： The invention provides a method and system for operating a solar farm inverter as a Flexible AC Transmission System (FACTS) device—a STATCOM—for voltage control. The solar farm inverter can provide voltage regulation, damping enhancement, stability improvement and other benefits provided by FACTS devices. In one embodiment, the solar farm operating as a STATCOM at night is employed to increase the connectivity of neighbouring wind farms that produce peak power at night due to high winds, but are unable to connect due to voltage regulation issues. The present invention can also operate during the day because there remains inverter capacity after real power export by the solar farm. Additional auxiliary controllers are incorporated in the solar farm inverter to enhance damping and stability, and provide other benefits provided by FACTS devices.

公开(公告)号：US10363831B2

公开(公告)日：2019-07-30

申请号：US15385382

申请日：2016-12-20

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Toshifumi Yamakawa ,  Masaki Okamura

IPC分类号： B60L1/00 ,  B60L3/00 ,  H02G3/00 ,  B60L15/00 ,  H02M7/44 ,  B60L15/20 ,  B60L50/51

摘要： A power system has a first converter; a second converter; a first controller for generating a first command and a second command, controlling the first converter on the basis of the first command, and transmitting the second command to a second controller; and the second controller for controlling the second converter on the basis of the second command. The first controller adjusts the first command to cancel at least one of shortage and excess of second current by first current. The second controller controls the second converter on the basis of the second command when the first command is smaller than first upper limit. The second controller controls the second converter on the basis of second upper limit when the first command reaches the first upper limit.

公开(公告)号：US10361752B2

公开(公告)日：2019-07-23

申请号：US14236466

申请日：2012-08-07

申请人： Gerardus Lucien Mathildus Jansen ,  Funda Sahin Nomaler ,  Can Nemlioglu ,  Ronald Hans Van Der Voort

发明人： Gerardus Lucien Mathildus Jansen ,  Funda Sahin Nomaler ,  Can Nemlioglu ,  Ronald Hans Van Der Voort

IPC分类号： H02J50/12 ,  H04B5/00 ,  H02J50/70 ,  H02J50/90 ,  H02J50/80 ,  H02M5/45 ,  H02J5/00 ,  H02M7/48 ,  H05B33/08 ,  H05B41/24 ,  H02M3/24 ,  H02M5/04 ,  H02M5/42 ,  H02M7/44 ,  H02J11/00 ,  H02M1/00

摘要： The present invention relates to a Voltage converter (100) for converting an input voltage (V10) to an output voltage (V20) comprising an input circuitry (102) for receiving the input voltage (V10) from a power supply (112), wherein the input circuitry includes chopper means (110) for chopping a voltage (V12) derived from the input voltage (V10) at a chopper frequency to a chopped voltage (V14), an inductive transformer unit (106) for transforming the chopped voltage (V14) to a chopped AC voltage (V16), and an output circuitry (104) for converting the chopped AC voltage (V16) of the inductive transformer unit (106) to the output voltage (V20) having a lower frequency than the chopper frequency.

公开(公告)号：US10361639B1

公开(公告)日：2019-07-23

申请号：US16025396

申请日：2018-07-02

申请人： Sansha Electric Manufacturing Co., Ltd.

发明人： Hiroshi Saso ,  Takeshi Morimoto

IPC分类号： H02M7/44 ,  B23K10/00 ,  H02M7/10 ,  H02M3/158 ,  H02M7/02 ,  H02M7/08 ,  H02M1/00 ,  H02M7/48

摘要： A main unit 2 and a subsidiary unit 4 include two inverters 6m, 8m and 6s, 8s, and PWM control circuits 26m, 26s, respectively. A changeover switch 20 operates to simultaneously connect the inputs of the two inverters of the main unit 2 and the inputs of the two inverters of the subsidiary unit 4 in series or in parallel. An imbalance detecting circuit 28 detects imbalance in the input voltages to the two inverters of the main unit 2, and provides the detection result to the PWM control circuits 26m and 26s. The PWM control circuit 26m controls the inverters 6m and 8m of the main unit 2 in accordance with the detection result supplied from the imbalance detecting circuit 26m, and the PWM control circuit 26s controls the subsidiary unit 4 in accordance with the detection result supplied from the imbalance detecting circuit 26m. The input current to the main unit 2 is larger than the input current to the subsidiary unit 4.

公开(公告)号：US10361563B2

公开(公告)日：2019-07-23

申请号：US15385627

申请日：2016-12-20

申请人： International Power Supply AD

发明人： Stoil Rangelov Trifonov ,  Filip Stoilov Rangelov ,  Alexander Stoilov Rangelov

IPC分类号： H02J3/32 ,  H02J3/38 ,  H02J7/00 ,  H02M7/04 ,  H02M7/44 ,  H02J13/00

摘要： A system and method for a distributed smart power and storage transfer architecture. An embodiment includes a stored power transfer control system comprising a remote monitoring processor located remotely from a plurality of sites, wherein the plurality of sites are connected to a distribution line. The stored power transfer control system further includes a plurality of energy storage systems distributed across the plurality of sites and a plurality of power control modules distributed across a plurality of sites. At least one of the plurality of power control modules is configured to receive, by a first communication bus, a data telegram from a monitoring processor and forward, by the first communication bus, the data telegram to a connected power control module. Further the at least one of the plurality of power control modules is configured to supply the distribution line with power output by a respective energy storage system according to the data telegram.

公开(公告)号：US10358022B2

公开(公告)日：2019-07-23

申请号：US15604228

申请日：2017-05-24

申请人： YAMAHA HATSUDOKI KABUSHIKI KAISHA

发明人： Masafumi Masuda ,  Haruyoshi Hino

IPC分类号： B60K1/02 ,  B60K1/00 ,  B60K6/20 ,  B60K6/26 ,  B60K6/24 ,  B60K6/48 ,  B60K6/34 ,  B60K6/46 ,  B60L50/10 ,  B60L50/13 ,  B60L50/14 ,  B60L50/61 ,  B60W20/50 ,  B60W20/19 ,  B60W20/00 ,  B60W10/06 ,  B60W10/08 ,  H02K21/24 ,  H02K21/02 ,  H02K1/27 ,  H02K7/18 ,  H02K7/00 ,  H02P9/04 ,  H02P9/40 ,  H02P9/14 ,  H02P27/06 ,  H02M7/44 ,  G07C5/00 ,  G07C5/08 ,  B60L11/08 ,  H02P101/45 ,  H02P101/25

摘要： A vehicle including an engine, a generator, a motor, a driving member and a control device. The generator includes a rotor, a stator having a stator core with a winding wound thereon, and an inductance adjustment device that changes an inductance of the winding by changing magnetic resistance of a magnetic circuit for the winding that passes through the stator core. The current adjustment device adjusts a current outputted from the generator to the motor, which drives the driving member. The control device, upon receiving a request for increasing the current to be supplied to the motor, directs the inductance adjustment device to adjust the generator to operate in a state in which the inductance of the winding is low, directs the engine to increase a rotation speed thereof to increase the rotational power, and directs the current adjustment device to increase the output current of the generator.

公开(公告)号：US10355491B2

公开(公告)日：2019-07-16

申请号：US15213439

申请日：2016-07-19

申请人： SMA Solar Technology AG

发明人： Denis Mende ,  Daniel Premm ,  Stephan Sander

IPC分类号： H02J3/38 ,  H02M7/44 ,  G05F1/67

摘要： An inverter for converting DC power of a generator into grid-conforming AC power includes an inverter bridge circuit and a scanning circuit configured to trace at least one part of a characteristic curve of the generator to determine an MPP power value (PMPP). The scanning circuit is configured, in the case of a derating to a derated power (Pred), to trigger a tracing of the characteristic curve with provision of a first power profile deviating from the derated power (Pred) if an enable signal is present at the inverter, and to indicate a start and an end of the tracing by outputting a start signal and an end signal, respectively. The scanning circuit is further configured to provide a second power profile as AC power upon receiving a start signal, wherein the first power profile has a deviation from the derated power (Pred) with a sign that is opposite to a sign of a deviation of the second power profile from the derated power (Pred).