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    • 7. 发明授权
    • Motor control apparatus with an improved thyristor chopper circuit
    • 电机控制装置,具有改进的晶闸管斩波电路
    • US4209733A
    • 1980-06-24
    • US936927
    • 1978-08-25
    • Hiroshi NaritaMasahiko IbamotoJinichi Toyama
    • Hiroshi NaritaMasahiko IbamotoJinichi Toyama
    • H02M1/06H02P7/29
    • H02P7/29Y10S388/915Y10S388/92
    • 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 is so provided that through a primary winding thereof chopper current flows, and the secondary winding operates as the reactance of the commutating elements. Current flowing through the secondary winding therefore depends on the chopper current flowing through the primary winding.
    • 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,可饱和电流互感器被设置为通过其初级绕组斩波电流流动,次级绕组作为换向元件的电抗工作。 因此,流过次级绕组的电流取决于流过初级绕组的斩波电流。
    • 8. 发明授权
    • Motor control apparatus with an improved thyristor chopper circuit
    • 电机控制装置,具有改进的晶闸管斩波电路
    • US4284934A
    • 1981-08-18
    • US10304
    • 1979-02-07
    • Hiroshi NaritaMichimasa HoriuchiMasahiko IbamotoHideaki Rokutan
    • Hiroshi NaritaMichimasa HoriuchiMasahiko IbamotoHideaki Rokutan
    • H02P7/29H02P5/16
    • H02P7/29Y10S388/902Y10S388/917Y10S388/92
    • 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.
    • 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。
    • 9. 发明授权
    • Braking control system selectively operable in dynamic and regenerative
braking operation for electric car
    • 制动控制系统可选择性地在电动汽车的动态和再生制动操作中操作
    • US4216420A
    • 1980-08-05
    • US929956
    • 1978-08-01
    • Yoshiji JinboEiji KozuHiroshi Narita
    • Yoshiji JinboEiji KozuHiroshi Narita
    • H02P3/12B60L7/22H02P3/08H02P3/14
    • H02P3/08
    • A chopper and a series circuit of a dynamic braking resistor and a thyristor are connected in parallel with a d.c. motor which is operated as a generator during braking operation. A series circuit of a diode and an inductance element is connected in series with the d.c. motor. A condenser connected between the ground and the junction of the inductance element and the diode forms a filter circuit together with the inductance element. Current generated by the d.c. motor flows into a d.c. source through the diode and the inductance element during regenerative braking operation. An over-voltage detector fires the braking thyristor when the voltage across the condenser becomes greater than a predetermined limit value, as a result the dynamic braking operation is performed.A chopper controller varies the interval between an ON pulse to turn the chopper into ON state and an OFF pulse to turn the chopper into OFF state for adjusting ON time and OFF time of the chopper in response to the current through the d.c. motor. An operation changer provides a signal to an automatic phase shifter to extend the interval between the ON and OFF pulses to a predetermined period of time enough to quench the braking thyristor when the braking operation of said d.c. motor is changed from the dynamic braking operation to the regenerative braking operation.
    • 动态制动电阻和晶闸管的斩波器和串联电路与直流电源并联连接。 在制动时作为发电机运转的电动机。 二极管和电感元件的串联电路与直流电源串联连接。 发动机。 连接在地和电感元件与二极管的结之间的电容器与电感元件一起形成滤波电路。 目前由d.c. 电机流入直流。 在再生制动操作期间通过二极管和电感元件来源。 当电容器两端的电压变得大于预定极限值时,过电压检测器发出制动晶闸管,结果是执行动态制动操作。 斩波控制器改变导通脉冲之间的间隔,以将斩波器变为导通状态,并且断开脉冲以使斩波器变为断开状态,以响应于通过直流电流的电流来调节斩波器的接通时间和断开时间。 发动机。 操作变换器向自动移相器提供信号,以在ON和OFF脉冲之间的间隔延长到预定的时间段,足以在所述直流制动的制动操作时使制动晶闸管猝熄。 电动机从动态制动操作改变为再生制动操作。
    • 10. 发明授权
    • Control apparatus for an electric car
    • 电动汽车的控制装置
    • US4171506A
    • 1979-10-16
    • US813668
    • 1977-07-07
    • Michimasa HoriuchiHiroshi NaritaTakashi Tsuboi
    • Michimasa HoriuchiHiroshi NaritaTakashi Tsuboi
    • B60L15/28H02P7/29H02P7/298H02P5/06
    • H02P7/29Y02T10/7258Y10S388/902Y10S388/92
    • In an electric car, wherein the powering drive and the braking drive are executed by on-off controlling a current through a d. c. motor by means of a chopper, when the electric car is below a predetermined speed, a field coil of the d. c. motor is put into a series winding connection so as to carry out full field control, and when the car is above the predetermined speed, the field coil of the d. c. motor is changed-over to a shunt winding connection so as to carry out weak field control.The duty cycle of the chopper is controlled with the running state of the electric car taken into consideration in order that the field current at the time when the series winding connection has been changed-over to the shunt winding connection may become substantially equal to a value before the change-over, whereby the transient change of the current between before and after the change-over of the field coil is suppressed.
    • 在电动车中,其中通过通过d的开关控制电流来执行动力驱动和制动驱动。 C。 电动机通过斩波器,当电动汽车低于预定速度时,d的励磁线圈。 C。 电机进入串联绕组连接,进行全场控制,当车高于预定速度时,d。的励磁线圈。 C。 电动机转换为并联绕组连接,从而进行弱磁场控制。