基于模糊线性自抗扰的柔性多状态开关控制研究
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引用本文:徐浩,王正齐.基于模糊线性自抗扰的柔性多状态开关控制研究[J].计算技术与自动化,2023,(1):1-8
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作者单位
徐浩,王正齐 (南京工程学院 电力工程学院江苏 南京 211167) 
中文摘要:为抑制系统干扰对三端口柔性多状态开关(FMSS)直流侧电压的影响,提出了一种基于模糊线性自抗扰控制(LADRC)的三端口FMSS控制策略。首先,根据LADRC算法设计出LADRC控制器来替代电压外环和电流内环中的PI控制器,以此增强系统的抗干扰性能;其次,通过模糊控制改进电流内环的LADRC控制器,从而得到一种用于干扰抑制的模糊LADRC控制器,实现控制器参数可随扰动实时变化,以达到抑制干扰的目的;最后,在MATLAB/Simulink中建立三端口FMSS仿真模型,对控制策略进行仿真验证。仿真结果表明,与采用LADRC控制策略相比,所提控制策略具有更好的抗干扰性能和稳定性,能有效地抑制FMSS直流侧电压波动。
中文关键词:柔性多状态开关  线性自抗扰控制  模糊控制  干扰抑制  抗干扰性能
 
Research on Flexible Multi-State Switch Control Based on Fuzzy Linear Active Disturbance Rejection
Abstract:To suppress the influence of system disturbance on the DC side voltage of a three-port flexible multi-state switch (FMSS), a linear active disturbance rejection control (LADRC) strategy for FMSS combined with fuzzy control was proposed. Firstly, the LADRC controller was designed according to the LADRC algorithm to replace the PI controller in the voltage outer loop and the current inner loop, so as to enhance the anti-disturbance performance of the system. Secondly, the LADRC controller of the current inner loop was improved by fuzzy control, and a fuzzy-LADRC controller for interference suppression was obtained. The controller parameters can be changed in real time with the disturbance to achieve the purpose of suppressing the disturbance. Finally, a three-port FMSS simulation model is established in MATLAB/Simulink to simulate the control strategy. The simulation results show that, compared with the LADRC control strategy, the proposed control strategy has better anti-disturbance performance and stability, and can effectively suppress the FMSS DC side voltage fluctuations.
keywords:FMSS  fuzzy-LADRC  fuzzy control  disturbance rejection  anti-disturbance performance
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