实时控制的交流变频调速系统实验平台研制

Development of variable frequency speed regulation experimental platform based on solution of real-time control

交流变频调速系统实验平台控制系统采用以DSP（digital signal processor）为核心的运动控制卡,该卡以插卡形式嵌入PC机的PCI插槽内,电机的控制算法在PC机上实现。为了满足系统对实时性的要求,提出了一种提高系统实时性的解决方案,即采用硬件中断法保证数据采集的精度和速度,采用多线程技术实现对数据的实时处理。实验结果表明：该方案可行,开发的控制系统性能良好,达到了设计要求,具有实用性。

A motion control card based on DSP is used in this variable frequency regulation experimental platform,and it is inserted in the PCI slots of PC.This platform uses PC to realize the control algorithm of the motor.In order to satisfy the real-time requirement,This article proposes two ways to solve this problem,one is employing hardware to interrupt to guarantee the speed and the accuracy of data acquisition,the other is employing multi-threading to realize real-time processing data.The experiment results indicate that this plan is feasible and the exploited system can meet requirements.