基于SH79F1611单片机的交流电机变频调速系统

VVVF System of AC Motor Based on SH79F1611 Single Chip Microcomputer

以智能功率模块(SPM)作为逆变电路功率开关器件,以单片机SH79F1611作为控制核心,采用脉冲宽度调制(PWM)的控制方法,设计一套交流电动机变频调速系统。根据系统参数对电路器件进行选型,通过实验实现变频调速控制。

This paper introduces an AC motor variable frequency speed regulation system,which adopted the intelligent power module（ SPM） as the power device,the microcontroller SH79F1611 as the control core,and pulse width modulation（ PWM） control method. According to the system parameters the circuit could be selected,and thus the variable frequency speed would be controlled.