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文章针对矢量控制理论,结合数字信号处理芯片DSP和智能功率模块IPM,对煤矿用异步电机变频调速控制系统进行研究。并在此基础上增加了电机的各种保护功能,如过载保护、短路保护和漏电保护等;在控制的实时性能和控制的精度得到提高的同时,增强了该系统的安全性和实用性。
In this paper, based on vector control theory, combined with digital signal processing chip DSP and intelligent power module IPM, the variable frequency speed control system of induction motor for coal mine is studied. On the basis of this, various kinds of motor protection functions such as overload protection, short circuit protection and earth leakage protection are added; while the real-time performance of control and the precision of control are improved, the safety and practicability of the system are enhanced.