摘要
为增强逆变器的抗扰动能力和负载动态特性,提出了基于Lyapunov稳定性理论的控制策略,Lyapunov二次函数是在双向DC/AC变换器平均模型的基础上建立的,得出满足系统稳定性的控制方程,并设计了占空比反馈控制器,该控制器可以用作输入反馈信号来跟踪参考输出电压并降低Lyapunov控制器的压力。此外,对逆变和整流两种工作状态进行了仿真验证,最后通过实验验证了所提控制器的优越性能。
In order to enhance the anti-disturbance ability and load dynamic characteristics of the inverter,a control strategy based on Lyapunov stability theory is proposed.The quadratic function of Lyapunov is established on the basis of the average model of bidirectional DC/AC converter,and the governing equation satisfying the stability of the system is obtained.Duty cycle feedback controller is designed,which can be used as input feedback signal to track the reference output voltage and reduce the pressure of Lyapunov controller.In addition,the two working states of inverter and rectifier are verified by simulation.Finally,the superior performance of the proposed controller is verified by experiment.
作者
朱艳萍
杨爽晗
郭伞伞
齐磊
ZHU Yan-ping;YANG Shuang-han;GUO San-san;QI Lei(Yanshan University,Key Lab of Power Electronics for Energy Conservation and Motor Drive of Hebei Province,Qinhuangdao 066004,China)
出处
《电力电子技术》
CSCD
北大核心
2021年第4期124-127,共4页
Power Electronics
基金
国家重点研究发展计划(2016YFB0900300)
国家自然科学基金(51677162)。
关键词
变换器
反馈控制器
逆变器
converter
feedback controller
inverter
