基于模糊解耦线性自抗扰控制的混合微电网直流母线电压波动抑制策略  

Suppression Strategy of DC Bus Voltage Fluctuation in Hybrid Microgrid Based on Fuzzy Decoupling Linear Auto Disturbance Rejection Control

作　　者：方响 俞登科 王亿 夏霖 FANG Xiang;YU Dengke;WANG Yi;XIA Lin(Hangzhou Power Supply Company,State Grid Zhejiang Electric Power Co.,Ltd.,Hangzhou 311200,China;Hangzhou Xiaoshan District Power Supply Company,State Grid Zhejiang Electric Power Co.,Ltd.,Hangzhou 311200,China;School of Electrical Engineering,Southeast University,Nanjing 210096,China)

机构地区：[1]国网浙江省电力有限公司杭州供电公司,杭州311200 [2]国网浙江省电力有限公司杭州市萧山区供电公司,杭州311200 [3]东南大学电气工程学院,南京210096

出　　处：《南方电网技术》2024年第10期116-129,共14页Southern Power System Technology

基　　金：国家自然科学基金资助项目(51977034)。

摘　　要：针对由负载突变、扰动加入、系统并网等因素导致的混合微电网直流母线电压波动现象,提出了解耦型线性自抗扰控制策略。首先,根据混合微电网的电路结构建立了混合微电网变换器的数学模型;然后,为提升系统抗扰性对线性自抗扰做解耦处理,形成解耦型线性自抗扰;进一步地,为达到参数实时优化的目的引入模糊自适应优化算法,形成模糊解耦自抗扰控制策略;最后,搭建混合微电网的物理模型与数字模型,进行仿真与半实物仿真实验;结果显示模糊解耦自抗扰控制策略具有优异的直流母线电压波动抑制能力。A decoupling linear auto disturbance rejection control strategy is proposed to address the phenomenon of voltage fluctua⁃tions in the DC bus of hybrid microgrids caused by factors such as sudden load changes,disturbance addition,and system grid connec⁃tion.Firstly,a mathematical model of the hybrid microgrid converter is established based on the circuit structure of the hybrid microgrid.Then,in order to improve the system′s anti-interference ability,decoupling treatment is performed on the linear self disturbance rejection to form a decoupling type linear self disturbance rejection.Furthermore,in order to achieve real-time parameter optimization,a fuzzy adaptive optimization algorithm is introduced to form a fuzzy decoupling auto disturbance rejection control strategy.Finally,a physical and digital model of the hybrid microgrid is established and simulation and semi physical simulation experiments are conducted.The results show that the fuzzy decoupling active disturbance rejection control strategy has excellent abil⁃ity to suppress DC bus voltage fluctuations.

关 键 词：混合微电网 模糊控制 线性自抗扰 母线电压波动 解耦自抗扰 

分 类 号：TN494[电子电信—微电子学与固体电子学]