数字型PWM控制异步电机调速系统  

Vector Speed Control System of Induction Motor with Digital Type PWM Control

作　　者：李汉强[1] 

机构地区：[1]武汉水运工程学院

出　　处：《电气传动》1993年第3期12-16,50,共6页Electric Drive

摘　　要：本文从异步电机动态等效电路建立磁场加速法的电机数学模型,采用V40单片机,应用数字型SLE4520PWM发生器,按相电压控制原则,用软件编程计算PWM脉宽,对交流异步电机进行PWM控制,实现交流异步电机矢量调速。According to the field acceleration method(FAM)theory, this paper establishes a mathematical model of induction motor by a transient equivalent circuit method. Based on phase voltage control principle, with a V40 single chip microcomputer and a digital type SLE4520 PWM generator, this paper designs a software for PWM control of induction motor by calculating the PWM pulse-width. By this way the vector speed control system of induction motor has been realized.

关 键 词：微机 异步电动机 调速 

分 类 号：TM343.012[电气工程—电机]