基于偏差解耦扰动观测器的Fuzzy-PI 逆变器电流环控制策略  

Fuzzy-PI Inverter Based on Deviation Decoupling Disturbance Observer Current Loop Control Strategy

作　　者：丁娱乐 赵树权[1] 李金航 刘向辰 DING Yule;ZHAO Shuquan;LI Jinhang;LIU Xiangchen(College of Electrical, Kunming Industrial Vocational and Technical College,Kunming 650302,China;College of Computer Information, Jianqiao College of Kunming University of Technology,Kunming 650101,China;Aviation Mechanical and Electrical Research Institute, LanzhouWanli Aviation Electromechanical Equipment of AVIC Co. , Ltd. ,Lanzhou 730000,China)

机构地区：[1]昆明工业职业技术学院电气学院,昆明650302 [2]昆明理工大学津桥学院计算机信息学院,昆明650101 [3]中国航空工业兰州万里航空机电有限责任公司航空机电研究院,兰州730000

出　　处：《微电机》2019年第10期74-78,共5页Micromotors

基　　金：云南省教育厅科学研究基金项目(2016Y554)

摘　　要：当电感参数发生变化时,L型逆变器在两相旋转坐标系下存在 dq轴电流耦合问题。本文将偏差解耦扰动观测器用于 L型逆变器流环控制,该控制方案可以有效抑制电感参数变化引起的 dq轴电流耦合现象;为了提高控制器的动态响应速度,对逆变器电流环控制中的 PI进行优化改进,提出一种基于偏差解耦扰动观测器的 Fuzzy PI逆变器电流环控制策略。最后,通过实验验证了该方案既不仅可以有效抑制 dq轴间的电流耦合,又保证了系统的动态特性。When the inductance parameters change, the problem of dq axis current coupling exists in the two-phase rotating coordinate system of L-type inverters. In this paper, the deviation decoupling disturbance observer was applied to the current loop control of L-type inverters. The control scheme can effectively suppress the current coupling phenomenon of dq axis caused by the variation of inductance parameters. In order to improve the dynamic response speed of the controller, the PI in the current loop control of inverters was optimized and improved, and a current loop control strategy of fuzzy-PI inverters based on the deviation decoupling disturbance observer was proposed. Finally, the experimental results show that the scheme can not only effectively suppress the current coupling between the dq axes, but also ensure the dynamic characteristics of the system.

关 键 词：L型逆变器 电流耦合 偏差解耦扰动观测器 动态特性 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]