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1. 发明授权

US4284934A Motor control apparatus with an improved thyristor chopper circuit 失效
标题翻译：电机控制装置，具有改进的晶闸管斩波电路
公开(公告)号：US4284934A
公开(公告)日：1981-08-18
申请号：US10304
申请日：1979-02-07
申请人： Hiroshi Narita , Michimasa Horiuchi , Masahiko Ibamoto , Hideaki Rokutan
发明人： Hiroshi Narita , Michimasa Horiuchi , Masahiko Ibamoto , Hideaki Rokutan
IPC分类号： H02P7/29 , H02P5/16
CPC分类号： H02P7/29 , Y10S388/902 , Y10S388/917 , Y10S388/92
摘要： A motor control apparatus to supply current from a D-C source to an electric motor has a thyristor chopper circuit, the duty factor of which is controlled depending on a current instruction signal. The thyristor chopper circuit is provided between the terminals of the D-C source in series with an electric motor, and has main and auxiliary thyristors. A series connection of a capacitor and a reactor, forming commutating elements, is connected across the auxiliary thyristor and oscillates to generate a pulse of current through a forward diode in order to turn off the main thyristor when the auxiliary thyristor is turned on. In addition, a saturable current transformer having first, second and third windings is provided. Through the first winding chopper current flows, and the second winding operates as the reactance of the commutating elements. The third winding is provided within the closed circuit formed when the chopper circuit is blocked, and causes current across the secondary winding to charge the capacitor of said chopper circuit.
摘要翻译：从D-C源向电动机供给电流的电动机控制装置具有晶闸管斩波电路，其占空因数根据电流指令信号而被控制。晶闸管斩波电路设置在与电动机串联的D-C源的端子之间，并具有主晶闸管和辅助晶闸管。电容器和电抗器的串联连接，形成换向元件，跨过辅助晶闸管连接并振荡，以产生通过正向二极管的电流脉冲，以便在辅助晶闸管导通时关断主晶闸管。此外，提供具有第一，第二和第三绕组的饱和电流互感器。通过第一绕组斩波电流流动，第二绕组作为换向元件的电抗运行。第三绕组设置在当斩波电路被阻塞时形成的闭合电路中，并且使得跨过次级绕组的电流对所述斩波电路的电容器充电。

2. 发明授权

US4345190A Chopper control system 失效
标题翻译：斩波控制系统
公开(公告)号：US4345190A
公开(公告)日：1982-08-17
申请号：US85974
申请日：1979-10-18
申请人： Michimasa Horiuchi , Masahiko Ibamoto , Hideaki Rokutan
发明人： Michimasa Horiuchi , Masahiko Ibamoto , Hideaki Rokutan
IPC分类号： H02M1/08 , H02M3/135 , H02P7/29 , H02P5/06
CPC分类号： H02M3/135 , Y10S388/903 , Y10S388/905 , Y10S388/92
摘要： A thyristor chopper whose gate signal is controlled by a magnetic phase shifter is connected between a battery and a series motor of an electric vehicle and is short-circuited by a bypass contactor as soon as the duty factor of the chopper attains 100%. In the short-circuited condition of the chopper, the magnetic phase shifter remains idle and does not participate in the control operation although the instruction current and the actual motor current are kept applied to its control windings. Therefore, the level of the output from the magnetic phase shifter is indicative of the value of the actual motor current when the instruction current value is fixed, so that the actual motor current value can be detected by detecting the output level from the magnetic phase shifter. When the actual motor current value is detected to be excessively large, the bypass contactor short-circuiting the chopper is released to decrease the value of the motor current, while when the actual motor current value is detected to be excessively small, a field-weakening contactor is closed to connect a field-weakening resistor in parallel with the field winding of the series motor so as to accelerate the motor by the field-weakening control.
摘要翻译：其栅极信号由磁性移相器控制的晶闸管斩波器连接在电动车辆的电池和串联电动机之间，一旦斩波器的占空因数达到100％，就被旁路接触器短路。在斩波器的短路状态下，尽管指令电流和实际电动机电流保持施加在其控制绕组上，磁性相移器保持空闲并且不参与控制操作。因此，当指令电流值固定时，来自磁相移器的输出电平表示实际电动机电流的值，从而可以通过检测来自磁相移器的输出电平来检测实际的电动机电流值。检测到实际的电动机电流值过大时，释放旁路接触器短路斩波器以降低电动机电流的值，而当实际的电动机电流值被检测到过小时，磁场弱化接触器闭合以将串联电动机的励磁绕组并联的弱磁电阻连接，以通过弱磁控制来加速电动机。

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