同步电机的一种自控变频调速控制方案

A Speed-Control Scheme for Self - Controlled Synchronous Motors

介绍一种同步电机自控变频调速控制方案.同步电机的自控变频是利用角位置码盘检测电机的转速和转角,并将码盘产生的一组方波信号经过Walsh变换转换成正弦信号去控制电枢电压而实现的,控制线路简单,精度高。

A speed control scheme for self-controlled synchronous motors are presented .A sine signal to control the armature current of a synchronous motor is obtained by applying the Walsh transform to a square ware , generated by measureing the anqular displacement of the synchronous motor with a code disc . Simplicity of the control circuit and high precision are among some merits of this scheme .