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一、前言近几年,微处理机迅速发展并应用于各部门,在电力电子设备中的应用也不例外,其应用技术的研究仍在不断进行着。应用微处理机控制直流电动机的转速,有待解决的也只剩下经济性和控制的响应性问题了。现在较多采用的方法是在模拟控制系统中,将P,D控制换成离散时间化数字系统。这种方法,因取样周期量子化误差的影响,与模拟PID控制比较,特性不能得到改善,因而在数字控制系统中使用发挥其特长的有限时间整定控制及数字锁相环控制等,以期提高
I. Introduction In recent years, the rapid development of microprocessor and applied to various departments in the application of power electronic equipment is no exception, the application of technology research is still ongoing. Microprocessor control of DC motor speed, the only remaining economic and control response to the problem. Now more commonly used method is in analog control system, the P, D control replaced by discrete-time digital system. This method, due to quantization error of the sampling period, can not be improved compared with analog PID control. Therefore, finite-time setting control and digital phase-locked loop control that exert their specialty in digital control system are used to improve