ICRH阻抗匹配系统步进电机模糊控制研究  

Research on fuzzy control of stepping motor in ICRH impedance matching system

作　　者：敬丹 阳璞琼[1,2] 侯文琦 张锦涛 刘波 JING Dan;YANG Puqiong;HOU Wenqi;ZHANG Jintao;LIU Bo(School of Electrical Engineering,University of South China,Hengyang Hunan 421001,China;Key Laboratory of Magnetic Constrained Fusion Research(University of South China),Hengyang Hunan 421001,China)

机构地区：[1]南华大学电气工程学院,湖南衡阳421001 [2]磁约束核聚变研究重点实验室(南华大学),湖南衡阳421001

出　　处：《智能计算机与应用》2020年第2期66-70,74,共6页Intelligent Computer and Applications

基　　金：国家自然科学基金(11675074);湖南省教育厅科技计划资助项目(16C1369)。

摘　　要：离子回旋共振加热(ICRH)是聚变装置中常用的加热手段,设备中的阻抗匹配是提高加热效率的关键。H1仿星器的ICRH设备中阻抗匹配通过有效精确调节可变电容来实现,可变电容的调节是由步进电机远程控制实现,因此要达到可变电容精细调控的目的,步进电机的稳定性和控制精度就显得尤为重要。本文采用Matlab的Simulink仿真模块对三相混合式步进电机的电流转速双闭环控制模型进行仿真,对步进电机分别采用PID控制和模糊PID控制,经过分析得出,采用模糊PID控制步进电机时,系统稳定性与控制精度得到极大提升。Ion cyclotron resonance heating(ICRH)is a commonly used heating method in fusion devices.Impedance matching in equipment is the key to improving heating efficiency.The impedance matching in the ICRH device of the H1 stellar is achieved by effectively adjusting the variable capacitor accurately.The variable capacitor adjustment is achieved by remote control of the stepper motor.Therefore,to achieve the purpose of fine regulation of the variable capacitor,the stability of the stepper motor performance and control accuracy are particularly important.In this paper,Matlab’s simulink simulation module is used to simulate the current and speed double closed-loop control model of the three-phase hybrid stepper motor.The stepper motor uses PID control and fuzzy PID control.After analysis,it is determined that the fuzzy PID is used to control the stepper motor,when the system stability and control accuracy are greatly improved.

关 键 词：阻抗匹配 步进电机 模糊PID控制 

分 类 号：TM383.6[电气工程—电机]