公开(公告)号：US4550282A

公开(公告)日：1985-10-29

申请号：US473743

申请日：1983-03-09

申请人： Carl S. M. Hartwig ,  Erik A. Ljung ,  Erik M. Obel

发明人： Carl S. M. Hartwig ,  Erik A. Ljung ,  Erik M. Obel

IPC分类号： H02P27/06 ,  H02P5/40

CPC分类号： H02P27/06

摘要： A method and a device for controlling a brushless alternating current motor (23) driven by an inverter (31-36) connected to a direct current supply (24,25). The direct current supplied to the inverter is sensed. The signal is passed through a peak detector (41) to a regulator (45), which decreases its frequency controlling output signal if the peak value input signal exceeds a predetermined value. A control signal corresponding to the torque demand of the motor is also produced. This signal controls the voltage supplied to the motor. Negative pulses at the turning off of the inverter switches are also sensed and used for controlling the degree of magnetization of the motor.

摘要翻译： 一种用于控制由连接到直流电源（24,25）的逆变器（31-36）驱动的无刷交流电动机（23）的方法和装置。 检测提供给逆变器的直流电流。 信号通过峰值检测器（41）传递到调节器（45），如果峰值输入信号超过预定值，则降低其频率控制输出信号。 也产生对应于电动机的转矩需求的控制信号。 该信号控制提供给电机的电压。 逆变器开关关断时的负脉冲也被检测并用于控制电动机的磁化程度。