公开(公告)号：US11095211B2

公开(公告)日：2021-08-17

申请号：US16390848

申请日：2019-04-22

Applicant: Bayerische Motoren Werke Aktiengesellschaft

Inventor： Hubert Herrmann ,  Michael Reiter ,  Christoph Sudan

IPC: H02M1/44 ,  H02M7/5388 ,  H02P25/024 ,  H02P23/06 ,  H02P23/00 ,  H02P9/12 ,  H02P9/30 ,  B60L50/60 ,  H02P27/08 ,  B60L50/51

Abstract: A control method and a switching device are provided for a separately excited synchronous machine as a drive in a hybrid or electric vehicle. The switching device converts and/or distributes electrical energy within the vehicle, in particular the hybrid or electric vehicle, wherein an asymmetric full bridge is provided, in the bridge branch of which a rotor of an SSM is arranged. Switches are provided in the asymmetric full bridge in order to provide a pulse width modulation corresponding to a desired motor rotational speed and power of the SSM. The device is characterized in that it has a short-circuit branch extending in parallel with the bridge branch of the asymmetric full bridge, by which short-circuit branch the rotor of the SSM is able to be short-circuited.

公开(公告)号：US20210013816A1

公开(公告)日：2021-01-14

申请号：US17042121

申请日：2019-03-07

Applicant: GENERAL ELECTRIC TECHNOLOGY GMBH

Inventor： Colin Charnock Davidson ,  Francisco Javier Chivite Zabalza ,  John Lewis Outram ,  Jerome Gregoire ,  Stefan Schroeder

IPC: H02M7/5388 ,  H02M7/483

Abstract: This application relates to a cell (1200) or sub-module for a voltage source converter (1201). The cell includes an energy storage apparatus (101; 101a, 101b) and a plurality of dual-switch semiconductor packages (201), each having first and second semiconductor switches (202, 203) connected in series. The cell is operable in an active state in which an energy storage apparatus (101; 101a, 101b) is electrically connected in series between cell terminals (102a, 102b) and a bypass state in the cell terminals (102a, 102b) are electrically connected via a path that bypasses the first energy storage apparatus. The plurality of dual-switch semiconductor switch packages are configured to provide a first set of semiconductor switches (301;401) connected between nodes of the cell that are electrically connected in the first active state and electrically disconnected in the first bypass state; and a second set of semiconductor switches (302a, 302b; 402a, 402b) is connected between nodes of the cell that are electrically disconnected in the first active state and electrically connected in the bypass state. The second set of switches comprises a greater number of switches in parallel than the first set of switches.

公开(公告)号：US10530173B2

公开(公告)日：2020-01-07

申请号：US16122395

申请日：2018-09-05

Applicant: Delta Electronics (Shanghai) Co., Ltd.

Inventor： Hao Sun ,  Minli Jia ,  Jinfa Zhang

IPC: H02J7/00 ,  H02J7/02 ,  H02J5/00 ,  H02M7/162 ,  H02M7/17 ,  B60L53/14 ,  B60L53/22 ,  H02M1/10 ,  H02M1/42 ,  H02M1/00 ,  H02M7/5388

Abstract: A charging device includes a first auxiliary bridge arm and a second auxiliary bridge arm. The first auxiliary bridge arm is connected between a first port and a second module. The second auxiliary bridge arm is connected between the first port and a third module. If the AC charging power is three-phase, the first module converts a first phase of the AC charging power, and the first auxiliary bridge arm and the second auxiliary bridge arm are disabled. Consequently, the second module converts a second phase of the AC charging power, and the third module converts a third phase of the AC charging power. If the AC charging power is single-phase, at least a first module is used to convert the AC charging power.

公开(公告)号：US10483874B2

公开(公告)日：2019-11-19

申请号：US16020431

申请日：2018-06-27

Applicant: STMicroelectronics (Tours) SAS

Inventor： Ghafour Benabdelaziz ,  Cedric Reymond ,  David Jouve

IPC: H02M7/757 ,  H02M7/77 ,  H02M7/797 ,  H02M7/81 ,  H02M7/217 ,  H02M7/06 ,  H02M7/5388 ,  H02M1/00

Abstract: A reversible converter includes a first field effect transistor and a second field effect transistor coupled in series between a first terminal and a second terminal for a DC voltage. A first thyristor and a second thyristor are coupled in series between the first and second terminals for the DC voltage. A third thyristor and a fourth thyristor are also coupled in series between the first and second terminals for the DC voltage terminals, but have an opposite connection polarity with respect to the first and second thyristors. A midpoint of connection between the first and second field effect transistors and a common midpoint of connection between the first and second thyristors and the third and fourth thyristors are coupled to AC voltage terminals. Actuation of the transistors and thyristors is controlled in distinct manners to operate the converter in an AC-DC conversion mode and a DC-AC conversion mode.

公开(公告)号：US10256751B2

公开(公告)日：2019-04-09

申请号：US15065617

申请日：2016-03-09

Applicant: STMicroelectronics, Inc.

Inventor： Frederic Bonvin

IPC: H02P6/14 ,  H02P3/12 ,  G11B19/20 ,  H02M7/5388 ,  H02P3/22 ,  H02P6/08

Abstract: A drive circuit having asymmetrical drivers. In an embodiment, a brushless DC motor may be driven by a drive circuit having three high-side MOSFETs and three low-side MOSFETs. A driver controller turns the MOSFETs on and off according to a drive algorithm such that phase currents are injected into motor coils to be driven. The high-side MOSFETs may be sized differently than the low-side MOSFETs. As such, when a MacDonald waveform (or similar drive algorithm) is used to drive the phases of the motor, less power may be required during disk spin-up because the MOSFETs that are on more (e.g., the low-side MOSFETs with a MacDonald waveform) may be sized larger than the MOSFETs that are on less (e.g., the high-side MOSFETs). In this manner, less power is dissipated in the larger size MOSFETs that are on more than the others.

公开(公告)号：US10250162B2

公开(公告)日：2019-04-02

申请号：US15676884

申请日：2017-08-14

Applicant: Koolbridge Solar, Inc.

Inventor： Paul Wilkinson Dent

IPC: H02M7/48 ,  H02M7/5387 ,  H02M7/49 ,  G05F1/44 ,  H02M7/5388 ,  H02M7/5395 ,  H02M7/46

Abstract: A transformerless DC to AC inverter providing an AC output at a power line voltage and at a power line frequency suitable for driving AC loads or appliances and having DC bias measurement circuitry for continuously assessing the magnitude of any DC bias component on the AC output, such as due to fault conditions or non-linear loads, and operative to eliminate or reduce any unwanted DC bias component from the AC output.

公开(公告)号：US10153711B2

公开(公告)日：2018-12-11

申请号：US15561660

申请日：2016-03-29

Applicant: Mitsubishi Electric Corporation

Inventor： Takushi Jimichi ,  Kimiyuki Koyanagi ,  Takeshi Kikuchi

IPC: H02M7/483 ,  H02M7/49 ,  H02M7/497 ,  H02M7/5387 ,  H02M7/00 ,  H02M7/217 ,  H02M7/5388 ,  H02M1/00

Abstract: In an electric power conversion device which performs power conversion between multiphase AC and DC, a first converter cell of a first arm for each phase of a power converter includes: a capacitor; a Leg A having upper and lower arms having switching elements; and a Leg B having upper and lower arms one of which has a switching element and the other of which has only a diode, and a second converter cell of a second arm includes: a capacitor; and a Leg Aa having upper and lower arms having switching elements. A control device has a steady mode and a protection mode. When short-circuit between DC terminals of the power converter is detected, the control device switches from the steady mode to the protection mode, turns off all the switching elements of the first converter cell of the first arm, and controls the second converter cell of the second arm so as to perform reactive power compensation operation.

公开(公告)号：US09917534B2

公开(公告)日：2018-03-13

申请号：US15248142

申请日：2016-08-26

Applicant: HITACHI, LTD.

Inventor： Shigenori Inoue ,  Shuji Katoh ,  Jun Narushima ,  Tetsuya Kato

IPC: H02M7/797 ,  H02M7/217 ,  H02M7/219 ,  H01F27/42 ,  H02M1/08 ,  H02J3/18 ,  H02J3/36 ,  H02M7/483 ,  H02M7/5388 ,  H02M1/00

CPC classification number: H02M7/797 ,  H01F27/42 ,  H02J3/1857 ,  H02J3/36 ,  H02M1/08 ,  H02M7/217 ,  H02M7/219 ,  H02M7/5388 ,  H02M2001/0009 ,  H02M2007/4835 ,  Y02E40/26 ,  Y02E60/60

Abstract: A power conversion device is provided which includes a plurality of series circuits each formed of a voltage source and a controlled current source. At least two of said series circuits formed of the voltage source and the controlled current source are connected in parallel. Further, parallel connection points of the series circuits connected in parallel form output terminals.

公开(公告)号：US09391544B2

公开(公告)日：2016-07-12

申请号：US12620929

申请日：2009-11-18

Applicant: Frederic Bonvin

Inventor： Frederic Bonvin

IPC: H02P6/14 ,  H02P3/14 ,  H02P3/22 ,  H02M7/5388 ,  H02P6/08 ,  H02P7/29 ,  H02P7/18 ,  G05F1/00

CPC classification number: H02P3/22 ,  G11B19/20 ,  H02M7/5388 ,  H02P6/085

Abstract: A drive circuit having asymmetrical drivers. In an embodiment, a brushless DC motor may be driven by a drive circuit having three high-side MOSFETs and three low-side MOSFETs. A driver controller turns the MOSFETs on and off according to a drive algorithm such that phase currents are injected into motor coils to be driven. The high-side MOSFETs may be sized differently than the low-side MOSFETs. As such, when a MacDonald waveform (or similar drive algorithm) is used to drive the phases of the motor, less power may be required during disk spin-up because the MOSFETs that are on more (e.g., the low-side MOSFETs with a MacDonald waveform) may be sized larger than the MOSFETs that are on less (e.g., the high-side MOSFETs). In this manner, less power is dissipated in the larger size MOSFETs that are on more than the others.

Abstract translation: 具有不对称驱动器的驱动电路。 在一个实施例中，无刷直流电动机可以由具有三个高边MOSFET和三个低边MOSFET的驱动电路驱动。 驱动器控制器根据驱动算法开启和关闭MOSFET，使得相电流被注入要驱动的电机线圈中。 高端MOSFET的尺寸可能与低端MOSFET的尺寸不同。 因此，当MacDonald波形（或类似的驱动算法）用于驱动电动机的相位时，由于更多的MOSFET（例如，具有一个或多个）的低端MOSFET，因此在磁盘启动期间可能需要更少的功率 麦克唐纳波形）的尺寸可能大于较少的MOSFET（例如高边MOSFET）。 以这种方式，在比其他MOSFET更大的MOSFET中消耗更少的功率。

公开(公告)号：US08958219B2

公开(公告)日：2015-02-17

申请号：US13615636

申请日：2012-09-14

Applicant: Ming Xu ,  Chuan-Yun Wang

Inventor： Ming Xu ,  Chuan-Yun Wang

IPC: H02M7/48 ,  H02M7/5388 ,  H02J3/38 ,  H02M7/493 ,  H02M1/12

CPC classification number: H02M7/5388 ,  H02J3/383 ,  H02M7/493 ,  H02M2001/123 ,  Y02E10/563

Abstract: A non-isolated inverter including a DC input-side, a capacitor connected in parallel with the DC input-side, an AC output-side connected in parallel with a load, and first and second bridge-arm units is provided. The first and second bridge-arm units are connected in parallel with the capacitor. The first bridge-arm unit includes a series forward-connection of upper and lower switch-elements, where a common-node of upper and lower switch-elements and a supplying terminal of the second bridge-arm unit are respectively connected to two terminals of the AC output-side. The upper and lower switch-elements are respectively turned on in positive and negative half cycles of an output current of the non-isolated inverter, and the generation of common-mode currents in the non-isolated inverter is suppressed under a clamping action between the upper and lower switch-elements due to there are no high-frequency voltages on the parasitic-capacitors from the non-isolated inverter to the ground.

Abstract translation: 提供一种非隔离逆变器，包括DC输入侧，与DC输入侧并联连接的电容器，与负载并联连接的AC输出侧，以及第一和第二桥臂单元。 第一和第二桥臂单元与电容器并联连接。 第一桥臂单元包括上下开关元件的串联前向连接，其中上下开关元件的共同节点和第二桥臂单元的供电端子分别连接到第二桥臂单元的两个端子 交流输出端。 上下开关元件分别在非隔离逆变器的输出电流的正半周期和负半周期内导通，并且在非隔离逆变器的输出电流之间的钳位动作下抑制了共模电流的产生 上，下开关元件由于在非隔离逆变器到地的寄生电容上没有高频电压。