Hierarchical Cooperative Recovery Control Strategy for Flexible Interconnected Microgrid Cluster Based on Back-to-back Converters

被引：0
作者：
Meng X. [1 ]
Shao B. [1 ]
Han P. [1 ]
Hua Y. [2 ]
Wang Q. [3 ]
机构：
[1] Anhui Province Key Laboratory of Renewable Energy Utilization and Energy Saving (Hefei University of Technology), Anhui Province, Hefei
[2] Energy Laboratory of Anhui Province, Hefei Comprehensive National Science Center), Anhui Province, Hefei
[3] State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Shapingba District, Chongqing
来源：
Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2023年 / 43卷 / 20期
关键词：
back-to-back converters; flexible multi-state switch; Hierarchical cooperative control; microgrid cluster;
D O I：
10.13334/j.0258-8013.pcsee.221457
中图分类号：
学科分类号：
摘要：
The flexible multi-state switch (FMSS) enriches the diversity of the topology configuration of microgrid cluster (MGC) and improves its control measure and fault recovery ability. However, flexible interconnection changes the disturbance transfer mode of the traditional AC-MGC, leading to frequency/voltage decoupling among the MG units, which brings new difficulties to the frequency/voltage zero-error recovery and active power sharing control under the disturbance. This study firstly takes BTBC-FMSS based flexible interconnected MGC system as the research object. Then, a novel centralized-distributed hybrid communication architecture is designed, and a hierarchical cooperative control for the MGC system is proposed based on consistency theory and power balance equations. Under this control strategy, the frequency/voltage restoration and active power sharing control goals can be achieved. Finally, the stability analysis of the proposed control strategy is analyzed, and a simulation model is built in Matlab/Simulink to verify the effectiveness of the control strategy. ©2023 Chin.Soc.for Elec.Eng.
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页码：7812 / 7826
页数：14
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