Motor control unit
    1.
    发明授权
    Motor control unit 有权
    电机控制单元

    公开(公告)号:US08098035B2

    公开(公告)日:2012-01-17

    申请号:US12439496

    申请日:2007-08-29

    IPC分类号: H02P7/00

    摘要: A motor control unit (10) includes: a power converter (40) having a rectifier circuit (20) which rectifies an AC voltage from an AC power supply (31), a capacitor circuit (22) which receives an output of the rectifier circuit (20) and outputs a rectified voltage having pulses from both ends of a capacitor (13) and an inverter circuit (25) which receives the rectified voltage and outputs an AC voltage to the motor (30); and a motor controller (41) controlling the motor (30) by controlling the inverter circuit (25). The motor controller (41) performs torque control to vary an output toque of the motor (30) in response to variation in load torque of the motor (30).

    摘要翻译: 电动机控制单元(10)包括:具有整流电路(20)的功率变换器(40),其对来自交流电源(31)的交流电压进行整流;电容器电路(22),其接收整流电路的输出 (20),从电容器(13)的两端输出具有脉冲的整流电压和接收整流电压的逆变器电路(25),并向电动机(30)输出交流电压; 以及通过控制逆变器电路(25)来控制电动机(30)的电动机控制器(41)。 电动机控制器(41)响应于电动机(30)的负载转矩的变化,进行转矩控制以改变电动机(30)的输出转矩。

    MOTOR CONTROL UNIT
    2.
    发明申请
    MOTOR CONTROL UNIT 有权
    电机控制单元

    公开(公告)号:US20090251086A1

    公开(公告)日:2009-10-08

    申请号:US12439496

    申请日:2007-08-29

    IPC分类号: H02P6/10

    摘要: A motor control unit (10) includes: a power converter (40) having a rectifier circuit (20) which rectifies an AC voltage from an AC power supply (31), a capacitor circuit (22) which receives an output of the rectifier circuit (20) and outputs a rectified voltage having pulses from both ends of a capacitor (13) and an inverter circuit (25) which receives the rectified voltage and outputs an AC voltage to the motor (30); and a motor controller (41) controlling the motor (30) by controlling the inverter circuit (25). The motor controller (41) performs torque control to vary an output toque of the motor (30) in response to variation in load torque of the motor (30).

    摘要翻译: 电动机控制单元(10)包括:具有整流电路(20)的功率变换器(40),其对来自交流电源(31)的交流电压进行整流;电容器电路(22),其接收整流电路的输出 (20),从电容器(13)的两端输出具有脉冲的整流电压和接收整流电压的逆变器电路(25),并向电动机(30)输出交流电压; 以及通过控制逆变器电路(25)来控制电动机(30)的电动机控制器(41)。 电动机控制器(41)响应于电动机(30)的负载转矩的变化,进行转矩控制以改变电动机(30)的输出转矩。

    Power conversion apparatus
    7.
    发明授权
    Power conversion apparatus 有权
    电力转换装置

    公开(公告)号:US09214881B2

    公开(公告)日:2015-12-15

    申请号:US13980241

    申请日:2012-01-18

    IPC分类号: H02P6/10 H02M1/12 H02P21/05

    摘要: A DC link is provided, which includes a capacitor connected in parallel to an output of a converter circuit, and outputs a pulsating DC link voltage. An inverter circuit is provided, which converts an output of the DC link to AC by switching, and supplies the AC to a motor connected thereto. A controller is provided, which controls switching of the inverter circuit so that motor currents pulsate in synchronization with pulsation of a power-supply voltage. The controller controls the switching of the inverter circuit in accordance with a load of the motor or an operational state of the motor, and reduces pulsation amplitude of the motor currents.

    摘要翻译: 提供了一个DC链路,其包括与转换器电路的输出并联连接的电容器,并且输出脉动的DC链路电压。 提供了通过切换将直流母线的输出转换为交流的逆变器电路,并且将AC提供给与其连接的电动机。 提供控制器,其控制逆变器电路的切换,使得电动机电流与电源电压的脉动同步地脉动。 控制器根据电动机的负载或电动机的工作状态控制逆变器电路的切换,并且减小电动机电流的脉动幅度。

    POWER CONVERSION APPARATUS
    8.
    发明申请
    POWER CONVERSION APPARATUS 有权
    功率转换装置

    公开(公告)号:US20130300327A1

    公开(公告)日:2013-11-14

    申请号:US13980241

    申请日:2012-01-18

    IPC分类号: H02P6/10

    摘要: A DC link is provided, which includes a capacitor connected in parallel to an output of a converter circuit, and outputs a pulsating DC link voltage. An inverter circuit is provided, which converts an output of the DC link to AC by switching, and supplies the AC to a motor connected thereto. A controller is provided, which controls switching of the inverter circuit so that motor currents pulsate in synchronization with pulsation of a power-supply voltage. The controller controls the switching of the inverter circuit in accordance with a load of the motor or an operational state of the motor, and reduces pulsation amplitude of the motor currents.

    摘要翻译: 提供了一个DC链路,其包括与转换器电路的输出并联连接的电容器,并且输出脉动的DC链路电压。 提供了通过切换将直流母线的输出转换为交流的逆变器电路,并且将AC提供给与其连接的电动机。 提供控制器,其控制逆变器电路的切换,使得电动机电流与电源电压的脉动同步地脉动。 控制器根据电动机的负载或电动机的工作状态控制逆变器电路的切换,并且减小电动机电流的脉动幅度。

    POWER CONVERTER CIRCUIT
    9.
    发明申请
    POWER CONVERTER CIRCUIT 有权
    电源转换器电路

    公开(公告)号:US20120113693A1

    公开(公告)日:2012-05-10

    申请号:US13383806

    申请日:2010-05-27

    IPC分类号: H02M5/458

    摘要: A power converter circuit includes a diode group, a relay, a DC section and an inverter. The diode group includes a plurality of diodes arranged to rectify an output voltage of an alternating-current power supply. The relay is provided at a point located closer to the alternating-current power supply than the diode group. The DC section is where an output voltage of the diode group is applied. The inverter is arranged to output a three-phase alternating-electric current to a three-phase load. The DC section has a maximum pulse voltage twice as great as a minimum pulse voltage of the DC section. The DC section includes an energy-absorbing circuit having an electrolytic capacitor. The DC section further has a pathway arranged to apply the output voltage of the alternating-current power supply from the alternating-current power supply to the electrolytic capacitor via a rectifying circuit, not via the relay.

    摘要翻译: 电力转换器电路包括二极管组,继电器,直流部分和逆变器。 二极管组包括多个二极管,用于对交流电源的输出电压进行整流。 继电器设置在比二极管组更靠近交流电源的点处。 直流部分是施加二极管组的输出电压的地方。 逆变器被布置成将三相交流电输出到三相负载。 直流部分的最大脉冲电压是直流部分最小脉冲电压的两倍。 直流部分包括具有电解电容器的能量吸收电路。 直流部分还具有通过经由整流电路而不经由继电器将来自交流电源的交流电源的输出电压施加到电解电容器的通路。