电镀电源双环控制系统设计  

The Design of Double Loop Control System for Electroplating Power Supply

作　　者：刘平[1] 徐瀚[1] 臧甲杰 陈睿科 

机构地区：[1]郑州大学信息工程学院,河南郑州450001

出　　处：《郑州大学学报（工学版）》2016年第4期86-90,共5页Journal of Zhengzhou University（Engineering Science）

基　　金：国家自然科学基金资助项目(10275021)

摘　　要：电镀电源具有低压、大电流工作特性,传统的电压控制模式因动态响应慢和不能动态限流等缺陷而难以满足控制要求.经比较分析,提出了使用电压外环、电流内环的双环控制器控制方案.对电镀电源系统进行建模分析,按照先电流内环后电压外环的顺序设计双环控制器.对系统模型使用伯德图进行环路稳定性分析,设计环路参数,并根据双环系统工作时电路出现的条件稳定现象对电流环路参数进行修正,并对设计的环路进行了试验.试验结果表明,双环控制系统正常工作,具有实用价值.Electroplating power supply has the working characteristics of low voltage and high current. It is difficult for the traditional voltage mode to meet the control requirement due to low dynamic response and de- fects of dynamic current limiting. This paper proposes to use double loop controller through the comparative a- nalysis, which is made up of an current inner loop and a voltage outer loop. The double loop controller is de- signed in the sequence of current inner loop firstly, the voltage outer loop secondly via the modeling analysis of electroplating power supply system. This paper analyses the stability of the circuit by using the Bode diagram. The design of the parameters of the circuit is also illustrated. According to the phenomenon of conditional sta- bilization when the circuit of double loop system works, parameters of the current are corrected. And the pa- rameters are tested by experiments. The hardware verification proves that the controller can work normally.This system has practical value.

关 键 词：电镀电源 双环控制 环路稳定性 

分 类 号：TM919[电气工程—电力电子与电力传动]