基于自抗扰控制的H桥逆变器的混沌研究  

Chaos Research of H-bridge Inverter Based on Active Disturbance Rejection Control

作　　者：马幼捷[1,2] 何晓宇 周雪松[1,2] 张超[1,2] MA Youjie;HE Xiaoyu;ZHOU Xuesong;ZHANG Chao(School of Electrical Engineering and Automation,Tianjin University of Technology,Tianjin 300384,China;Tianjin Key Laboratory of Control Theory and Application for Complex Systems,Tianjin University of Technology,Tianjin 300384,China)

机构地区：[1]天津理工大学电气工程与自动化学院,天津300384 [2]天津理工大学天津市复杂系统控制理论与应用重点实验室,天津300384

出　　处：《电气传动》2024年第7期11-15,21,共6页Electric Drive

基　　金：国家自然科学基金面上项目(51877152);天津市自然科学基金(18JCZDJC97300)。

摘　　要：为了解决新能源发电系统逆变器出现混沌的问题,提出了一种基于自抗扰控制的H桥逆变器的调节方案。针对处于混沌状态的逆变器的稳态和动态特性差的现象,构建了逆变器的离散模型,并通过建立跟踪微分器、扩张状态观测器以及状态误差反馈控制律进行混沌控制。通过分岔图、折叠图以及仿真分析,结果可知基于自抗扰控制的H桥逆变器比基于比例控制的H桥逆变器的稳定范围扩大了45%,有效地抑制了混沌现象的发生。通过分析可得出:该控制策略对系统的混沌行为能够进行抑制,拓宽了系统稳定工作范围。To solve the chaos problem of inverter in new energy generation system,a regulation scheme of H-bridge inverter based on active disturbance rejection control(ADRC)was proposed.Aiming at the phenomenon of poor steady-state and dynamic characteristics of inverters in chaotic state,a discrete model of the inverter was developed to control the chaos by establishing tracking differentiators,extended state observers,and state error feedback control laws.Through bifurcation diagram,folding diagram and simulation,the results show that the stability range of the H-bridge inverter based on ADRC control is expanded by 45%compared with the H-bridge inverter based on proportional control,which effectively suppresses the occurrence of chaos.It can be concluded that the control strategy can restrain the chaotic behavior of the system and broaden the stable working range of the system.

关 键 词：自抗扰控制 H桥逆变器 离散模型 混沌 分岔图 

分 类 号：TM743[电气工程—电力系统及自动化]