摘要
针对目前三相PWM整流器中PID控制器控制精度不高、鲁棒性较差,且传统积分滑模控制器滑模面抖振现象仍较大等问题,提出了一种三相PWM整流器电流内环高阶积分端末滑模控制策略。该控制策略结合了积分滑模面和端末滑模面,形成一种积分端末滑模面,从而获得有限的收敛时间,降低了稳态误差。并通过结合高阶滑模控制思想和传统P控制策略,提出一种高阶滑模趋近率,使得开关函数出现在控制量高阶方程中,有效降低了滑模面的抖振现象。最后,通过仿真试验证明了该策略的正确性和可行性。
The existing PID controller in the three-phase PWM rectifier has low control accuracy and poor robustness,and the chattering phenomenon of the sliding surface of the traditional integral sliding mode controller is still relatively large.Aiming at these problems,a high-order integral terminal sliding mode control strategy of the three-phase PWM rectifier current inner loop is proposed in this paper.This control strategy combines the integral sliding surface and the end sliding surface to form an integral end sliding surface,so as to obtain a finite convergence time and reduce the steady-state error.And through the combination of high-order sliding mode control ideas and traditional P control strategies,a high-order sliding mode approach rate is developed,so that the switching function appears in the high-order equation of the control variable,the chattering phenomenon of the sliding mode surface is effectively reduced.Finally,the simulation test proves the correctness and feasibility of the strategy.
作者
梁祺祺
程旭峰
张逾良
彭珍珍
汪殿龙
LIANG Qiqi;CHENG Xufeng;ZHANG Yuliang;PENG Zhenzhen;WANG Dianlong(Hebei Engineering Laboratory of Wind Power/Photovoltaic Coupling Hydrogen Production and Comprehensive Utilization,Hebei University of Science and Technology,Shijiazhuang 050018,Hebei,China;Shijiazhuang Tonghe Electronic Technology Co.,Ltd.,Shijiazhuang 050035,Hebei,China)
出处
《电网与清洁能源》
北大核心
2022年第6期37-43,共7页
Power System and Clean Energy
基金
河北省重点研发计划项目(20312205D/19212108D)。
关键词
三相PWM整流器
高阶滑模
积分端末滑模
矢量控制
V2G
three-phase PWM rectifier
high-order sliding mode
integral terminal sliding mode
vector control
V2G
