基于DSP 的变频调速SPWM控制实现

Realization of Variable-Frequency Speed Variation SPWM Controlling Based on DSP

摘要:

由于正弦波脉宽调制(SPWM)技术动态特性好,能明显地提高电动机的效率,因此在电机控制中得到了广泛的应用；介绍了以数字信号处理器SM320LF2407A 为核心的温度闭环控制系统,采用SPWM技术实现了变压控制,可实现对某型航空发动机涡轮前温度的限制；试验结果表明,采用SPWM 技术的温度闭环控制系统具有实现简单、性能优良和安全可靠的特点。

Abstract:

The technique of Sine Pulse Width Modulation (SPWM) which has fine dynamic characteristic can increase the motor efficiency obviously,so it has been used in the motor control widely. A closed-loop temperature control system based on the Digital Signal Processor (DSP) SM320LF2407A is introduced in this paper,and the variable voltage control strategy has been implemented with SPWM. The results on the tests show that the temperature control system with SPWM has many merits such as simple realization,good running performance and safety.