智能电动执行器变频调速系统的研究

Research of Variable Frequency Speed System for Intelligent Electric Actuator

智能电动执行器是工业过程控制系统中一个十分重要的现场驱动装置,文中将开关磁阻电机(SRM)步进传动的动态定位技术应用于智能电动执行器的变频调速系统中。简要介绍了基于SRM的智能电动执行器调速系统的硬件组成,重点阐述了系统的软件实现,以CCS3.1为开发平台进行模块化设计,对SRM转子位置和电流进行实时检测,在转速和电流方面都能很好地跟随给定。该设计方案现已成功应用于智能电动执行器并取得了良好的控制效果,具有一定的实用价值。

Intelligent electric actuator is a very important driven device in the industrial process control system. This paper applys step dynamic positioning technology of switched reluctance motor （SRM） into intelligent electric actuator＇ s frequency speed control system. We briefly introduce the hardware of intelligent electric actuator＇s speed control system which based on switched reluctance motor, focusing on system＇s software. And use CCS3.1 modular platform for modular designing .In this way, can detect the position of SRM rotor and current in time. Both in speed and current aspects, it has a good quality of following a given value. The design has been successfully applied to intelligent electric actuator, and achieved a good control effect, so it has a certain practical value.