公开(公告)号：US4481455A

公开(公告)日：1984-11-06

申请号：US536871

申请日：1983-09-29

申请人： Osamu Sugimoto ,  Shinobu Ishizaka ,  Youji Tanaka ,  Noboru Suzuki

发明人： Osamu Sugimoto ,  Shinobu Ishizaka ,  Youji Tanaka ,  Noboru Suzuki

IPC分类号： H02P1/30 ,  H02P1/26

CPC分类号： H02P1/30

摘要： This method of starting a variable-speed induction motor utilizes a speed control of the induction motor by varying the output frequency from a cycloconverter. The method comprises applying an output from the cycloconverter to the secondary winding of the induction motor while the primary winding of the induction motor is short-circuited during the start-up of the motor, applying a voltage lower than the line voltage to the primary winding when the induction motor is operating within an intermediate speed range, and applying the line voltage within a speed region near the rated speed. This method enables speed control over a wide range, and provides a sufficiently large start-up torque for the induction motor.

摘要翻译： 这种启动变速感应电动机的方法是通过改变来自循环换流器的输出频率来利用感应电动机的速度控制。 该方法包括：在马达启动期间，感应电动机的初级绕组短路的同时，将来自循环换流器的输出施加到感应电动机的次级绕组，向初级绕组施加低于线路电压的电压 当感应电动机在中速范围内运行时，并将线路电压施加在接近额定转速的速度区域内。 该方法能够在宽范围内进行速度控制，并为感应电动机提供足够大的起动转矩。