摘要
为了改善Buck-Boost矩阵变换器(Buck-Boost Matrix Converter,BBMC)逆变的电能质量和解决抗干扰性能不足的问题,提出一种改进线性自抗扰控制技术(Linear Active Disturbance Rejection Control,LADRC),并将其应用于电压外环控制策略中.该控制技术在线性扩张状态观测器(Linear Expanded State Observer,LESO)中引入了电容电压微分与观测值的偏差信号,提高了观测精度,为了进一步提高系统动态性能,在线性状态误差反馈控制律(Linear State Error Feedback,LSEF)中引入模糊自适应系数.利用MATLAB/Simulink仿真试验平台分别对文中所提及策略的稳态和动态性能采用对照试验方法,仿真结果表明:无论是从稳态运行还是从系统参考信号和负载突变时的动态响应速度,文中改进型LADRC控制效果均显著优于传统LADRC控制器.
To improve the power quality of the buck-boost matrix converter(BBMC)inverter and address the issue of insufficient anti-interference performance,this paper proposes an improved linear active disturbance rejection control(LADRC)technology and applies it to the outer voltage loop control strategy.This control technology introduces the differential of the capacitor voltage and the error signal of the observation value in the linear expanded state observer(LESO)to enhance observation accuracy.To further improve the dynamic performance of the system,a fuzzy adaptive coefficient is introduced in the linear state error feedback control law(LSEF).By using the MATLAB/Simulink simulation test platform,comparative experiments are conducted on the steady-state and dynamic performance of the strategies mentioned in the paper.The simulation results indicate that the improved LADRC control effect is significantly better than the traditional LADRC both in terms of steady-state operation and the dynamic response speed when the system reference signal and load change.
作者
刘志雄
蔡斌军
姚振声
LIU Zhixiong;CAI Binjun;YAO Zhensheng(College of Electrical and Information Engineering,Hunan Institute of Engineering,Xiangtan 411104,China)
出处
《湖南工程学院学报(自然科学版)》
2025年第2期24-30,共7页
Journal of Hunan Institute of Engineering(Natural Science Edition)
基金
湖南省自然科学基金项目(2022JJ50111)
湘潭市科技计划项目(CG-YB20221045)
湖南省研究生科研创新资助项目(YC202319).
