基于幂-指趋近率的三相PWM整流器滑模控制方法研究  

Research on Sliding Mode Control Method of Three-phase PWM Rectifier Based on Power Exponential Reaching Rate

作　　者：徐鹏 付文聪 但远宏[2] 王潺 王涛 XU Peng;FU Wencong;DAN Yuanhong;WANG Chan;WANG Tao(College of Electrical and Electronic Engineering,Chongqing University of Technology,Chongqing 400054,China;College of Computer Science and Engineering,Chongqing University of Technology,Chongqing 400054,China)

机构地区：[1]重庆理工大学电气与电子工程学院,重庆400054 [2]重庆理工大学计算机工程学院,重庆400054

出　　处：《电工技术》2022年第20期170-174,共5页Electric Engineering

摘　　要：针对三相电压型PWM整流器滑模控制中电压外环抖振难以收敛的问题,提出一种基于幂-指趋近率的三相PWM整流器滑模控制方法,并且利用李雅普诺夫稳定性判据验证了此趋近率满足滑模面可达性条件。通过仿真试验和硬件试验,分析了所提幂-指趋近率滑模控制方法对三相PWM整流器动态响应特性、抗干扰能力、谐波含量等的影响,并与传统的指数趋近率滑模控制方法进行对比,结果表明所提幂-指趋近率滑模控制方法相较于传统指数趋近率滑模控制方法,有显著的抖振抑制效果。Aiming at the problem that the voltage chattering in outer loop is difficult to converge in the sliding mode control of three-phase voltage source PWM rectifier,a sliding mode control method of three-phase PWM rectifier based on power exponential reaching rate is proposed.And the Lyapunov stability criterion is used to verify that the reaching rate meets the accessibility condition of sliding mode surface.Furthermore,a simulation test model is built in MATLAB/Simulink to analyze the influence of the proposed power exponential reaching rate sliding mode control method on the dynamic response characteristics,anti-interference ability and harmonic content of three-phase PWM rectifier.This method is compared with the traditional exponential approach rate sliding mode control method.The results show that the proposed power exponential approach rate sliding mode control method has significant chattering suppression effect compared with the traditional exponential approach rate sliding mode control method.

关 键 词：三相整流器 滑模控制 幂-指趋近率 抖振抑制 

分 类 号：TM721[电气工程—电力系统及自动化]