Operation Mode Division and Cooperative Regulation Strategy of AC/DC Microgrid Cluster System

被引：0
|
作者：
Yang Z. [1 ]
Wang C. [2 ]
Jiang D. [2 ]
Han J. [2 ]
Yang F. [1 ]
Min H. [1 ]
机构：
[1] Electric Power Research Institute, State Grid Hubei Electric Power Co., Ltd., Wuhan
[2] College of New Energy, Harbin Institute of Technology at Weihai, Weihai
来源：
Gaodianya Jishu/High Voltage Engineering | 2024年 / 50卷 / 03期
关键词：
AC/DC microgrid; communication method; flexible multi-state switch; load status; multi mode; topological structure;
D O I：
10.13336/j.1003-6520.hve.20231485
中图分类号：
学科分类号：
摘要：
This paper proposes a method of multi-mode operation and switching scenarios for microgrid systems with flexible multi-state switches. Firstly, the system is divided into 320 operating modes based on the characteristics of communication mode, topology structure, and load state. Then, an in-depth analysis is conducted on the power transmission balance relationship and inherent switching logic under different operating modes. By applying control strategies, the active power control instructions for voltage source converters (VSC) in multi-mode operation are obtained, which achieves stable operation and seamless switching of the system, load balancing of the feeder lines, and automatic control of the main transformer overload. Finally, the reliability of the proposed control strategy is verified through simulations, and the influence of communication delay on distributed control is analyzed. The simulation results demonstrate that the proposed control strategy can ensure stable operation and flexible switching of AC/DC hybrid microgrid systems under different operating modes. © 2024 Science Press. All rights reserved.
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页码：1111 / 1121
页数：10
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