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    • 1. 发明授权
    • Electric train control apparatus
    • 电动火车控制装置
    • US07904216B2
    • 2011-03-08
    • US12852725
    • 2010-08-09
    • Yosuke NakazawaTetsu Tone
    • Yosuke NakazawaTetsu Tone
    • B60L9/18
    • B60L9/22B60L3/0023B60L3/10B60L15/20B60L2200/26B61C15/00Y02T10/645Y02T10/646Y02T10/7275
    • According to one embodiment, an electric train control apparatus having a plurality of electric motors and a plurality of inverters configured to control electric motors, independently of one another, including shaft speed calculating units respectively, and configured to calculate shaft speeds of electric motors, reference speed calculating unit configured to calculate a reference speed from shaft speeds of electric motors, acceleration detection control units configured to calculate torque reduction values from rates at which shaft speeds calculated, slip speed control units configured to reduce torques in accordance with a difference between shaft speeds of electric motors, state monitoring units configured to monitor states of detecting shaft speeds and output state signals, and changeover unit configured to switch control of inverters, between control performed by acceleration detection control units and control performed by slip speed control units, in accordance with state signals received from state monitoring units.
    • 根据一个实施例,一种电动列车控制装置,具有多个电动机和多个逆变器,其被配置为分别彼此独立地控制电动机,包括轴速度计算单元,并且被配置为计算电动机的轴速度,参考 速度计算单元,被配置为从电动机的轴速度计算参考速度;加速度检测控制单元,被配置为从计算出的轴速度的速率计算转矩降低值;配置为根据轴速度之间的差异来减小转矩的滑差速度控制单元 电动机的状态监视单元,被配置为监视轴速度和输出状态信号的状态的状态监视单元;以及转换单元,被配置为根据加速度检测控制单元进行的控制和由滑差速度控制单元执行的控制来切换逆变器的控制, 状态信号 ls从国家监督机构收到。
    • 10. 发明授权
    • Control system for permanent magnet synchronous motor
    • 永磁同步电机控制系统
    • US5854547A
    • 1998-12-29
    • US709843
    • 1996-09-10
    • Yosuke Nakazawa
    • Yosuke Nakazawa
    • H02P6/00H02P6/08H02P21/00H02P27/04H02P27/06H02P27/08H02P7/06
    • H02P21/00H02P6/08H02P6/34
    • To provide a control system for a permanent magnet synchronous motor which can ensure stability of the current control system, even if the revolution frequency of the motor becomes higher and the terminal voltage of the motor exceeds the inverter maximum output voltage. In this method, when the revolution frequency of the motor exceeds a specified value, the size of the voltage vector is made a specified voltage vector, and a modulation factor based on its value is obtained. At the same time, a magnetic flux direction current correction value is found based on the size of a voltage vector from a polarity coordinates conversion unit and the above specified voltage vector size. Then, the magnetic flux direction current instruction is corrected by that value.
    • 为了提供一种能够确保电流控制系统的稳定性的永磁同步电动机的控制系统,即使电动机的转速变高,电动机的端子电压超过逆变器最大输出电压。 在该方法中,当电动机的转速超过规定值时,电压矢量的大小为规定的电压矢量,得到基于其值的调制系数。 同时,基于来自极坐标转换单元的电压矢量的大小和上述规定的电压矢量大小,求出磁通方向电流校正值。 然后,通过该值校正磁通方向电流指令。