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    AC motor drive system and motor vehicle
    1.
    发明授权
    AC motor drive system and motor vehicle 审中-公开

    公开(公告)号：EP2713502B1

    公开(公告)日：2018-12-26

    申请号：EP13182340.3

    申请日：2013-08-30

    申请人： Hitachi, Ltd.

    发明人： Iwaji, Yoshitaka ,  Sakai, Toshifumi ,  Kojima, Tetsuo

    IPC分类号： H02P27/08 ,  H02P21/02 ,  H02P21/00

    CPC分类号： H02P27/08 ,  H02P21/0021 ,  H02P21/02 ,  H02P2201/07 ,  H02P2209/09 ,  H02P2209/13

    摘要： It is an object of the invention to realize minimization of the total loss from magnification relationships among a fundamental wave loss generated by an AC motor, a loss of an inverter that drives the motor, and a loss generated by a harmonic of the inverter. Since the fundamental wave loss is increased along with the increase in load of the AC motor, a switching frequency of the inverter is lowered to reduce the fundamental wave loss, and the loss caused by fundamental wave current is lowered, so that the efficiency of a system is improved. In contrast, since the harmonic loss of the AC motor is dominant in a light load area, the efficiency is maximized by increasing the switching frequency of the inverter or the number of pulses and reducing a harmonic current.

    SYNCHRONOUS MOTOR CONTROL DEVICE, COMPRESSOR DRIVE DEVICE, AIR-CONDITIONER, AND METHOD FOR CONTROLLING SYNCHRONOUS MOTOR
    2.
    发明公开
    SYNCHRONOUS MOTOR CONTROL DEVICE, COMPRESSOR DRIVE DEVICE, AIR-CONDITIONER, AND METHOD FOR CONTROLLING SYNCHRONOUS MOTOR 审中-公开
    同步电动机控制装置，压缩机驱动装置，空调器以及用于控制同步电动机的方法

    公开(公告)号：EP3168980A1

    公开(公告)日：2017-05-17

    申请号：EP15893547.8

    申请日：2015-08-04

    申请人： Mitsubishi Electric Corporation

    发明人： KASHIMA, Mitsuo ,  KUTSUKI, Tomohiro ,  HIGASHIKAWA, Tomomi ,  MURAMATSU, Akiyoshi

    IPC分类号： H02P21/00 ,  H02P27/04

    CPC分类号： B60H1/3222 ,  F25B49/025 ,  F25B2600/021 ,  F25B2600/0253 ,  H02P21/00 ,  H02P21/0021 ,  H02P21/26 ,  H02P21/34 ,  H02P27/04 ,  H02P27/08 ,  Y02B30/741

    摘要： There is provided a synchronous motor control device including: a DC power supply 1; an inverter main circuit 2; a three-phase synchronous motor 3 that is driven when a direct current of the DC power supply 1 is converted into an alternating current by the inverter main circuit 2; and an inverter control unit 6 that receives an angular velocity command value, a phase current value of the three-phase synchronous motor 3 and a DC voltage value of the DC power supply 1 as input and outputs a PWM signal used to control the inverter main circuit 2, the inverter control unit 6 including: a PWM signal generation unit 10; a start-up control unit 8 that outputs a start-up voltage command value corresponding to the phase current value to the PWM signal generation unit 10 at the time of start-up; a steady state control unit 13 that calculates a steady state voltage command value by using a voltage equation in a steady state and outputs the value to the PWM signal generation unit 10; and a steady state control parameter initial value calculation unit 12 that outputs an initial value of a control parameter to be used in the steady state control unit 13 to the steady state control unit 13 such that an output voltage vector from the inverter main circuit 2 to the three-phase synchronous motor 3 is consistent before and after switching from the start-up to the steady state, whereby the start-up can be stably performed.

    摘要翻译： 提供了一种同步电动机控制装置，包括：直流电源1; 一个逆变器主电路2; 当直流电源1的直流电流被逆变器主电路2转换成交流电流时被驱动的三相同步电动机3; 以及接收三相同步电动机3的角速度指令值，相电流值和直流电源1的直流电压值作为输入并输出用于控制逆变器主电路的PWM信号的逆变器控制单元6 电路2，逆变器控制单元6包括：PWM信号生成单元10; 启动控制单元8，其在启动时向PWM信号生成单元10输出与相电流值对应的启动电压命令值; 稳态控制单元13，其通过使用稳定状态下的电压公式来计算稳态电压命令值并将该值输出到PWM信号生成单元10; 以及稳态控制参数初始值计算单元12，其将在稳态控制单元13中要使用的控制参数的初始值输出到稳态控制单元13，使得从逆变器主电路2到输出电压矢量 三相同步电动机3在从起动切换到稳定状态之前和之后是一致的，由此可以稳定地执行起动。

    System and method for controlling torque of induction motor in electric vehicle
    4.
    发明公开
    System and method for controlling torque of induction motor in electric vehicle 有权
    系统和Verfahren zum Steuern des Drehmoments eines einem Elektrofahrzeug Induktionsmotors

    公开(公告)号：EP2485389A3

    公开(公告)日：2016-01-27

    申请号：EP11194907.9

    申请日：2011-12-21

    申请人： LSIS Co., Ltd.

    发明人： Choi, Gi Young ,  Lee, Sun Woo

    IPC分类号： H02P21/08 ,  H02P21/00 ,  H02P21/14

    CPC分类号： B60L15/025 ,  B60L2220/12 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/425 ,  B60L2240/427 ,  B60L2240/429 ,  B60L2240/547 ,  B60L2260/44 ,  H02P21/0003 ,  H02P21/0021 ,  H02P21/09 ,  H02P21/16 ,  Y02T10/643 ,  Y02T10/7258

    摘要： Disclosed is a system and a method for controlling torque of induction motor in electric vehicle. The system and method for controlling torque of induction motor in electric vehicle according to the present disclosure has an advantageous effect in that torque control problems caused by saturation of magnetic flux, parameters of induction motor and changes in battery voltages during control of torque in the induction motor can be solved using a look-up table (a type of data table), thereby enhancing accuracy in torque control and improving travel performance and fuel efficiency of the electric vehicle.

    摘要翻译： 公开了一种用于控制电动车辆中的感应电动机的转矩的系统和方法。 根据本公开的用于控制电动车辆中的感应电动机的转矩的系统和方法具有如下优点：在感应转矩控制期间由磁通饱和，感应电动机的参数和电池电压的变化引起的转矩控制问题 可以使用查表（一种数据表）来解决电动机，从而提高转矩控制的精度，并提高电动车辆的行驶性能和燃油效率。

    PROCEDE ET DISPOSITIF DE COMMANDE D'UN GROUPE MOTOPROPULSEUR
    6.
    发明公开
    PROCEDE ET DISPOSITIF DE COMMANDE D'UN GROUPE MOTOPROPULSEUR 审中-公开
    方法和装置控制传动系的

    公开(公告)号：EP2756593A1

    公开(公告)日：2014-07-23

    申请号：EP12767055.2

    申请日：2012-09-10

    申请人： Renault S.A.S.

    发明人： MERIENNE, Ludovic ,  MALOUM, Abdelmalek

    IPC分类号： H02P21/00 ,  H02P21/05 ,  H02P25/02

    CPC分类号： B60L15/20 ,  H02P21/0003 ,  H02P21/0021 ,  H02P21/0085 ,  H02P21/05 ,  H02P25/024 ,  H02P2101/45 ,  H02P2207/05 ,  Y02T10/7258

    摘要： Method for controlling a powertrain fitted in an automobile and comprising an electric motor equipped with a rotor and a stator, comprising: - regulation (2) of currents (l
    d , I
    q , I
    f ) of the rotor and the stator via control signals (V
    d , V
    q , V
    f ) from the electric motor, wherein said currents (l
    d , I
    q , I
    f ) and control signals (V
    d , V
    q , V
    f ) are expressed in a rotating coordinate system and comprise a plurality of axes, said control signals (V
    d , V
    q , V
    f ) resulting from a first transformation comprising a change of variable that enables dynamic decoupling between the control signals (V
    d , V
    q , V
    f ), along each of the axes of said plurality of axes; - saturation (3) of said control signals (sat(V
    d) ), sat(V
    g) ), sat(V
    f) )) resulting from said first transformation in order to satisfy the constraints of a battery fitted in the automobile and connected to the electric motor; and - blockage (1) of at least some of the current reference values of the regulation (I
    ref
    d, I
    ref
    q, I
    ref
    f ) if the control signals are saturated.

    Controller for electric motor
    7.
    发明公开
    Controller for electric motor 审中-公开
    Steuerungfüreinen Elektromotor

    公开(公告)号：EP2642658A2

    公开(公告)日：2013-09-25

    申请号：EP13172436.1

    申请日：2007-09-25

    申请人： Mitsubishi Electric Corporation

    发明人： Kitanaka, Hidetoshi

    IPC分类号： H02P27/06 ,  H02P21/06 ,  H02P27/04 ,  H02P21/00

    CPC分类号： H02P27/04 ,  H02P21/0021 ,  H02P21/0085 ,  H02P21/06

    摘要： In a controlling device (100) for a permanent magnet synchronous motor, an asynchronous pulse mode is switched to a synchronous pulse mode in a situation where a modulation factor has become equal to or larger than a first set value or in a situation where an inverter (2) output frequency has become equal to or higher than a second set value. The synchronous pulse mode is switched to the asynchronous pulse mode in a situation where the modulation factor has become smaller than the first set value, and also, the inverter (2) output frequency has become lower than the second set value. By setting the second set value so that the number of pulses included in a half cycle of an output voltage fundamental wave of the inverter (2) is equal to or larger than a predetermined value, it is possible to inhibit current oscillations and torque ripples from occurring in the motor.

    摘要翻译： 在永磁同步电动机的控制装置（100）中，在调制度成为等于或大于第一设定值的情况下，异步脉冲模式切换为同步脉冲模式，在逆变器 （2）输出频率变为等于或高于第二设定值。 在调制系数小于第一设定值的情况下，同步脉冲模式切换为异步脉冲模式，逆变器（2）的输出频率变得低于第二设定值。 通过设定第二设定值使得逆变器（2）的输出电压基波的半周期中包含的脉冲数为规定值以上，可以抑制电流振荡和扭矩波动 发生在电机中。