公开(公告)号：US20240063708A1

公开(公告)日：2024-02-22

申请号：US18259340

申请日：2021-02-12

Applicant: Mitsubishi Electric Corporation

Inventor： Koichi ARISAWA ,  Takuya SHIMOMUGI ,  Takaaki TAKAHARA ,  Haruka MATSUO ,  Keisuke UEMURA

IPC: H02M1/12 ,  H02M1/42 ,  H02M1/00 ,  H02M1/16 ,  H02M5/458 ,  H02P27/12 ,  H02M1/14 ,  F25B49/02

CPC classification number: H02M1/12 ,  H02M1/4283 ,  H02M1/0009 ,  H02M1/16 ,  H02M1/4225 ,  H02M5/4585 ,  H02P27/12 ,  H02M1/143 ,  F25B49/025 ,  H02P2201/07 ,  H02P2201/09 ,  H02P2201/15 ,  F25B2600/021

Abstract: A power converter includes: a rectifying and boosting unit that rectifies first alternating-current power supplied from a commercial power supply and boosts a voltage of the first alternating-current power; a capacitor connected to an output end of the rectifying and boosting unit; an inverter to convert power output from the rectifying and boosting unit and the capacitor into second alternating-current power, and output the second alternating-current power to a device; and a control unit that reduces a current flowing through the capacitor by controlling the rectifying and boosting unit and by controlling the inverter such that the inverter outputs, to the device, the second alternating-current power containing a ripple dependent on a ripple of power flowing from the rectifying and boosting unit into the capacitor. The control unit controls in accordance with a load state.

公开(公告)号：US20190190409A1

公开(公告)日：2019-06-20

申请号：US16193093

申请日：2018-11-16

Applicant: DENSO CORPORATION

Inventor： Takashi IMURA

IPC: H02P6/10 ,  H02M3/158 ,  H02M7/5387 ,  H02M1/14

CPC classification number: H02P6/10 ,  H02M1/14 ,  H02M3/1582 ,  H02M7/5387 ,  H02M2001/0009 ,  H02P2201/07

Abstract: A motor driver drives a motor by receiving a power supply from a direct current power source, and includes a half-bridge circuit, a smoothing capacitor, a power supply circuit, a current adjuster circuit, and a control circuit. The half-bridge circuit and the smoothing capacitor are connected at positions between a power supply line and a ground line. The current adjuster circuit adjusts a current supply amount to the power supply circuit. The control circuit controls the half-bridge circuit and the current adjuster circuit. The control circuit controls the current adjuster circuit based on an operating state of the half-bridge circuit.

公开(公告)号：US09787228B2

公开(公告)日：2017-10-10

申请号：US14696566

申请日：2015-04-27

Applicant: Aeristech Control Technologies Limited

Inventor： Bryn Geoffrey Roddick Richards ,  Wenshan Hu

IPC: H02P23/00 ,  H02P6/00 ,  H02K21/16 ,  H02P6/06 ,  H02P25/026 ,  H02P27/06 ,  H02K21/12 ,  F01N5/04 ,  F02B39/10 ,  H02P6/08 ,  H02P6/18 ,  H02P9/02 ,  H02P6/28 ,  H02P6/15 ,  H02P25/03 ,  H02K1/27

CPC classification number: H02P6/28 ,  F01N5/04 ,  F02B39/10 ,  H02K1/278 ,  H02K21/12 ,  H02K21/16 ,  H02P6/06 ,  H02P6/08 ,  H02P6/157 ,  H02P6/18 ,  H02P9/02 ,  H02P25/026 ,  H02P25/03 ,  H02P27/06 ,  H02P2201/07 ,  H02P2201/11

Abstract: An electrical controller for electric rotating machines is provided. A control system for electric rotating machines transmits a controlled quantity of current to or from different windings of the electric rotating machine at any given time. Furthermore, the amplitude of the current is independently variable of the timing and duration of the transmission of the current to or from the windings. This allows increased control of the electric rotating machine and facilitates the operation of the electric motor at high mechanical and/or electrical speeds.

公开(公告)号：US09602028B2

公开(公告)日：2017-03-21

申请号：US14061892

申请日：2013-10-24

Applicant: BAUMUELLER NUERNBERG GMBH

Inventor： Uwe Hensel ,  Magdi Dimas-Zekri ,  Axel Helmerth

IPC: H02P3/18 ,  G05B9/02 ,  H03K17/18 ,  H03K17/691 ,  H03K17/79

CPC classification number: H02P3/18 ,  G05B9/02 ,  H02P29/0241 ,  H02P2201/07 ,  H03K17/18 ,  H03K17/691 ,  H03K17/79

Abstract: An apparatus and a method actuate a frequency converter of an electric machine having a safety function, in particular a safe-torque-off (STO) function. Wherein, by a preferably clocked converter circuit, an electrically isolated output voltage is generated from an input voltage, from which output voltage a control signal is generated for the frequency converter for the operation thereof in accordance with standards and for triggering the safety function. An actuation signal is generated for a semiconductor switch which is periodically connected to the input voltage, and the output voltage is limited when the output voltage exceeds a switching threshold.

公开(公告)号：US20150042255A1

公开(公告)日：2015-02-12

申请号：US13963853

申请日：2013-08-09

Applicant: Woodward, Inc

Inventor： David L Ried

IPC: H02P29/00

CPC classification number: H02P25/06 ,  F16K31/00 ,  H02M7/48 ,  H02M2001/007 ,  H02P27/06 ,  H02P29/00 ,  H02P2201/07 ,  H02P2201/09

Abstract: In some aspects, an actuation system includes an electrical positioning driver and an electrically-driven actuator. A voltage boost converter in the electrical positioning driver receives an input voltage. The voltage boost converter passes the input voltage to a voltage bus in the electrical positioning driver. The voltage on the voltage bus is converted to an actuator power signal that controls the electrically-driven actuator. The voltage boost converter boosts the voltage on the voltage bus to control a mechanical output performance of the electrically-driven actuator.

Abstract translation: 在一些方面，致动系统包括电定位驱动器和电驱动致动器。 电气定位驱动器中的升压转换器接收输入电压。 升压转换器将输入电压传递到电气定位驱动器中的电压总线。 电压总线上的电压转换为控制电动执行器的执行器电源信号。 升压转换器提升电压总线上的电压，以控制电动执行器的机械输出性能。

公开(公告)号：US08796960B2

公开(公告)日：2014-08-05

申请号：US13634168

申请日：2010-04-21

Applicant: Masaki Okamura ,  Naoyoshi Takamatsu

Inventor： Masaki Okamura ,  Naoyoshi Takamatsu

IPC: H02P5/00

CPC classification number: H02P23/009 ,  B60L15/08 ,  B60L15/20 ,  B60L15/2045 ,  B60L2220/14 ,  H02P21/0089 ,  H02P23/30 ,  H02P2201/07 ,  Y02T10/643 ,  Y02T10/644 ,  Y02T10/645 ,  Y02T10/72 ,  Y02T10/7283

Abstract: A control device for a motor drive system including an AC motor having a magnet in a rotor, a converter, and an inverter generates a step-up command value for the converter based on a torque command value for the AC motor. The control device determines whether or not to carry out field-weakening control for increasing a current in a direction weakening force of a magnet that is supplied from the inverter to the AC motor, based on the step-up command value and a state of drive of the AC motor. When field-weakening control should be carried out and when an absolute value of the torque command value is smaller than a threshold value, the control device further increases the generated step-up command value. By doing so, an amount of a field-weakening current can be decreased and therefore efficiency of the motor drive system can be improved.

Abstract translation: 一种用于电动机驱动系统的控制装置，包括具有转子中的磁体的AC电动机，转换器和逆变器，基于AC电动机的转矩指令值，生成转换器的升压指令值。 控制装置基于升压指令值和驱动状态来判定是否进行减弱控制，以增加从逆变器向交流电动机供给的磁铁的弱化方向的电流 的交流电机。 当进行磁场弱化控制时，当转矩指令值的绝对值小于阈值时，控制装置进一步增加所产生的升压指令值。 通过这样做，能够减少弱磁化电流的量，能够提高电动机驱动系统的效率。

公开(公告)号：US08680795B2

公开(公告)日：2014-03-25

申请号：US13152325

申请日：2011-06-03

Applicant: Yuqing Tang ,  Hongjie Wu ,  William Paul Perkins

Inventor： Yuqing Tang ,  Hongjie Wu ,  William Paul Perkins

IPC: H02P1/00

CPC classification number: H02M3/155 ,  H02P2201/07

Abstract: An automotive electric drive system may include an electric power source, an electric machine, and a DC-DC power converter electrically connected between the electric power source and the electric machine. The DC-DC power converter may include an inductor and a first switch each disposed in a different current path connecting the electric power source and the electric machine. The currents paths may be electrically in parallel.

Abstract translation: 汽车电驱动系统可以包括电源，电机和电连接在电源和电机之间的DC-DC电力转换器。 DC-DC电力转换器可以包括电感器和第一开关，每个开关设置在连接电源和电机的不同电流路径中。 电流路径可以电并联。

公开(公告)号：US08643316B2

公开(公告)日：2014-02-04

申请号：US13058888

申请日：2009-08-03

Applicant: Masaki Kono ,  Sho Kato

Inventor： Masaki Kono ,  Sho Kato

IPC: H02P1/00 ,  H02P3/18 ,  H02P21/00 ,  H02P7/00

CPC classification number: B60L7/16 ,  B60L3/0023 ,  B60L15/025 ,  B60L2200/26 ,  B60L2220/14 ,  B60L2260/24 ,  B60L2260/26 ,  H02P1/029 ,  H02P21/0089 ,  H02P21/06 ,  H02P27/06 ,  H02P29/0241 ,  H02P2201/07 ,  H02P2207/05 ,  Y02T10/643

Abstract: Based on rotation information of a synchronous machine detected by a rotation information detector, a controller causes a converter to boost a charge voltage of a capacitor so as to be higher than an induced voltage generated by the synchronous machine at a time of shifting to a coasting operation, maintains the charge voltage during the coasting operation, and performs weak field control so that the induced voltage generated by the synchronous machine becomes lower than a DC voltage at the time of shifting from the coasting operation to a power running operation or to a regenerative operation.

Abstract translation: 基于由旋转信息检测器检测到的同步机的旋转信息，控制器使转换器升高电容器的充电电压，使其高于在转向滑行时由同步电机产生的感应电压 在惯性操作期间维持充电电压，并且进行弱磁场控制，使得同步电机产生的感应电压变得低于从滑行操作转换到电力运行操作或再生时的直流电压 操作。

公开(公告)号：US20130307462A1

公开(公告)日：2013-11-21

申请号：US13981473

申请日：2011-03-28

Applicant: Manabu Ohashi ,  Kazuya Nakamura

Inventor： Manabu Ohashi ,  Kazuya Nakamura

IPC: H02P27/06

CPC classification number: H02P27/06 ,  H02M1/32 ,  H02P3/22 ,  H02P2201/03 ,  H02P2201/07 ,  Y02P80/116

Abstract: A circuit disconnection element that can open or short-circuit between a power storage element and a step-up/step-down bidirectional chopper circuit is provided in a power storage system, thereby preventing a self-discharge state in a process of charging. Furthermore, at the time of occurrence of an abnormality, the power storage element is detached from other devices including the step-up/step-down bidirectional chopper circuit. Accordingly, an energy loss of the power storage element at the time of power regeneration can be reduced to improve the energy use efficiency. Further, breakage influences such that the power storage element causes breakage in other devices at the time of occurrence of the abnormality can be prevented, thereby enabling to obtain an AC motor drive device having mounted therein a highly safe power storage system.

Abstract translation: 在蓄电系统中设置有能够在蓄电元件与升压/降压双向斩波电路之间断开或短路的电路断路元件，从而防止充电过程中的自放电状态。 此外，在异常发生时，蓄电元件与包括升压/降压双向斩波电路的其他装置分离。 因此，可以降低功率再生时的蓄电元件的能量损失，提高能量利用效率。 此外，可以防止在发生异常时蓄电元件导致其他装置中的断线的破损，从而能够获得安装有高度安全的蓄电系统的交流电动机驱动装置。

公开(公告)号：US20130278189A1

公开(公告)日：2013-10-24

申请号：US13978589

申请日：2012-01-11

Applicant: Takashi Yamaguchi ,  Toru Kakebayashi

Inventor： Takashi Yamaguchi ,  Toru Kakebayashi

IPC: H02P21/00

CPC classification number: H02P21/0085 ,  H02M7/53875 ,  H02P6/182 ,  H02P23/0086 ,  H02P27/08 ,  H02P2201/07 ,  H02P2205/01

Abstract: A LPF extracts DC component of a current detection value of an inverter input current. A subtracting section 4 calculates a difference between a current command value and the DC component of the current detection value. A current controller 5 produces two-phase PWM signals Sa and Sb complementary to each other, from the current difference. Further, an integrating circuit 7 integrates output terminal voltages Vu, Vv and Vw of the inverter to convert the output terminal voltages Vu, Vv and Vw into a magnetic-flux information Φu, Φv and Φw. A logic conversion section 8 converts the magnetic-flux information Φu, Φv and Φw into 120-degree conduction patterns S1′-S6′ to output the 120-degree conduction patterns S1′-S6′. Then, a logic circuit section 9 executes a logic synthesis between the PWM signals Sa and Sb and the 120-degree conduction patterns S1′-S6′ to output gate signals S1-S6.

Abstract translation: LPF提取逆变器输入电流的电流检测值的DC分量。 减法部分4计算当前指令值与当前检测值的直流分量之差。 电流控制器5根据电流差产生彼此互补的两相PWM信号Sa和Sb。 此外，积分电路7对逆变器的输出端子电压Vu，Vv，Vw进行积分，将输出端子电压Vu，Vv，Vw变换为磁通量信息Phiu，Phiv，Phiw。 逻辑转换部分8将磁通量信息Phiu，Phiv和Phiw转换成120度的导通图案S1'-S6'以输出120度的导通图案S1'-S6'。 然后，逻辑电路部分9执行PWM信号Sa和Sb之间的逻辑合成以及120度导通图形S1'-S6'以输出门信号S1-S6。