公开(公告)号：US4924168A

公开(公告)日：1990-05-08

申请号：US378961

申请日：1989-07-12

申请人： Akira Horie ,  Yoshiji Jimbo

发明人： Akira Horie ,  Yoshiji Jimbo

IPC分类号： H02M7/529

CPC分类号： H02M7/529

摘要： In a PWM-controlled, variable voltage/variable frequency inverter, a pulse mode, which is identified by a number of voltage pulses within one cycle of an output AC voltage of the inverter, is changed in accordance with a frequency of the output AC voltage and an output AC voltage factor, which is a ratio of an output AC voltage to be produced by the inverter at that time to a maximum value of the output AC voltage which can be produced under a then-present value of a voltage of a DC voltage source for the inverter.

摘要翻译： 在PWM控制的可变电压/可变频逆变器中，由逆变器的输出AC电压的一个周期内的多个电压脉冲识别的脉冲模式根据输出AC电压的频率而改变 以及输出交流电压因子，其是由该时刻的逆变器产生的输出交流电压与可以在直流电压的当前值下产生的输出交流电压的最大值的比 变频器电压源。

公开(公告)号：US4528487A

公开(公告)日：1985-07-09

申请号：US536876

申请日：1983-09-29

申请人： Yoshiji Jimbo ,  Kazuyoshi Kotake

发明人： Yoshiji Jimbo ,  Kazuyoshi Kotake

IPC分类号： B60L15/28 ,  B60L9/02 ,  H02P7/298 ,  H02P5/06

CPC分类号： H02P7/298 ,  Y02T10/7258 ,  Y10S388/915 ,  Y10S388/92

摘要： The DC power supply current-collected on the electric car is connected with a series circuit of the armature of a driving DC motor and an armature current control chopper and with a series circuit of a field winding and a field current control chopper.Both choppers are controlled so that the armature current and field current are maintained constant until the flow rate of the armature chopper reaches the maximum after starting of electric car. In this period of time, the chopping frequency of the armature chopper is higher than that of the field chopper.When the flow rate of the armature chopper reaches the maximum, the chopping frequency of the armature chopper is made coincident with that of the field chopper. At the same time, the field chopper is switched to the control operation by which the field current is decreased in order that the decrease of the armature current is restricted.When the speed of the electric car is further increased so that the field current tends to decrease below the weak field limit value, a control system is operated to suppress the tendency and thereafter the field current becomes constant.The chopping frequencies of both choppers are determined on the basis of a common clock pulse.

摘要翻译： 在电动汽车上收集的直流电源电流与驱动直流电动机和电枢电流控制斩波器的电枢的串联电路和励磁绕组和励磁电流控制斩波器的串联电路连接。 控制两台斩波器，使得电枢电流和励磁电流保持恒定，直到电动斩波器的启动速度达到最大值。 在这段时间内，电枢斩波器的斩波频率高于场斩波器的斩波频率。 当电枢斩波器的流量达到最大值时，电枢斩波器的斩波频率与场斩波器的斩波频率一致。 同时，将场斩波器切换到励磁电流减小的控制操作，以便限制电枢电流的减小。 当电动汽车的速度进一步提高，使得励磁电流趋于降低到低于弱磁场极限值时，操作控制系统来抑制该趋势，此后励磁电流变得恒定。 基于公共时钟脉冲确定两个斩波器的斩波频率。

公开(公告)号：US5021725A

公开(公告)日：1991-06-04

申请号：US441640

申请日：1989-11-27

申请人： Yoshiji Jimbo ,  Tsutomu Ozawa

发明人： Yoshiji Jimbo ,  Tsutomu Ozawa

IPC分类号： B60L3/00 ,  B60L9/00 ,  B60L9/18 ,  B60L9/22

CPC分类号： B60L9/005 ,  B60L9/22 ,  B60L2200/26

摘要： An arrangement for preventing inductive interference in an electric car having a power receiver for receiving DC power from a feeder line connected to a DC power supply, an inverter connected between the power receiver and a ground side terminal connected to a rail via a wheel for converting the DC power fed from the power supply into AC power, and a motor driven by the output of the inverter, the arrangement being adapted to prevent a high-frequency signal current transmitted from and/or to a signal station from being affected by inductive interference due to switching currents of the inverter flowing from switching elements of the inverter to a return line by way of a capacitance between a frame and a stator winding of the motor. The inductive interference preventive arrangement has a circuit for making the impedance of an electrical circuit extending from the motor frame to the ground side terminal without passing through the rail smaller than that of an electrical circuit extending from the motor frame to the rail by way of wheels driven by the motor.

公开(公告)号：US4785225A

公开(公告)日：1988-11-15

申请号：US105234

申请日：1987-10-07

申请人： Akira Horie ,  Yoshiji Jimbo ,  Kingo Abe ,  Jinkoo Choo ,  Seiki Amikura ,  Yozo Tsuzuki

发明人： Akira Horie ,  Yoshiji Jimbo ,  Kingo Abe ,  Jinkoo Choo ,  Seiki Amikura ,  Yozo Tsuzuki

IPC分类号： B60L9/22 ,  H02P27/04 ,  H02P1/30

CPC分类号： H02P27/08 ,  B60L9/22 ,  B60L2200/26 ,  B60L2210/20 ,  B60L2220/12 ,  Y02T10/725

摘要： A control apparatus for an induction motor comprises a variable voltage, variable frequency inverter feeding the motor, which is controlled by the PWM control. A secondary current component and an exciting current component of the motor are obtained by the calculation on the basis of a motor current and an actual slip frequency of the motor. From the thus obtained secondary current component, an actual torque produced by the motor is calculated. A frequency reference for the PWM control is obtained by the comparison result of the actual torque and a torque reference. A modulation factor reference for the PWM control is obtained by the comparison of the exciting current component and an exciting current reference. According to this control apparatus, the torque of the induction motor can be controlled to follow the torque reference with a high accuracy.

摘要翻译： 用于感应电动机的控制装置包括由PWM控制控制的供电电动机的可变电压变频逆变器。 通过基于电动机电流和电动机的实际转差频率的计算来获得电动机的二次电流分量和励磁电流分量。 从这样获得的二次电流分量，计算由电动机产生的实际转矩。 通过实际转矩和转矩给定的比较结果，可获得PWM控制的频率基准。 通过比较励磁电流分量和励磁电流参考，可获得PWM控制的调制系数参考。 根据该控制装置，能够高精度地控制感应电动机的转矩跟随转矩基准。

公开(公告)号：US4792736A

公开(公告)日：1988-12-20

申请号：US052882

申请日：1987-05-22

申请人： Yoshiji Jimbo ,  Seiki Amikura

发明人： Yoshiji Jimbo ,  Seiki Amikura

IPC分类号： B60L15/28 ,  B60L7/16 ,  B60L15/08 ,  H02P7/06

CPC分类号： B60L7/16 ,  B60L15/08 ,  B60L2200/26 ,  Y02T10/645 ,  Y02T10/646 ,  Y02T10/648 ,  Y02T10/7258 ,  Y10S388/92

摘要： There are provided a first chopper CH1 connected in parallel with armatures M1, M2 of main motors of an electric vehicle and operating during a braking mode, and a second chopper CH2 connected in series with the armatures and operating during a powering mode. Both the choppers have a reverse-directional conductivity. A third chopper FCH is further provided to control a field current of the main motors. According to this invention, an arrangement of a main circuit of the electric vehicle is not necessary to be switched over, even though the operation mode thereof is changed. Further, compared with the prior art, the number of the choppers used decreases, so that an economical control apparatus for the electric vehicle can be realized.

摘要翻译： 提供了与电动车辆的主电动机的电动机M1，M2并联并在制动模式下运行的第一斩波器CH1和与电枢串联连接并在供电模式期间操作的第二斩波器CH2。 斩波器都具有反向导电性。 进一步提供第三斩波器FCH以控制主电动机的励磁电流。 根据本发明，电动车辆的主电路的布置不需要切换，即使其操作模式改变。 此外，与现有技术相比，使用的斩波器的数量减少，从而可以实现用于电动车辆的经济的控制装置。