Distributed finite-time consensus cooperative secondary control of microgrid

被引：0

作者：

Ma X.-J. ^{[1
]}

Li F. ^{[1
]}

Zhao M. ^{[1
]}

Zhang H.-Q. ^{[1
]}

机构：

[1] Department of Electrical Engineering, Harbin Institute of Technology, Weihai

来源：

Zhao, Mei | 1600年 / Editorial Department of Electric Machines and Control卷 / 25期

关键词：

Adaptive virtual impedance; Distributed cooperative secondary control; Finite-time consensus; Microgrid; Multi-agent system; Power sharing;

D O I：

10.15938/j.emc.2021.02.006

中图分类号：

学科分类号：

摘要：

Aiming at the isolated microgrid in primary control using droop control prone to be affected by the line impedance characteristics and topological structure of microgrid, and causes the difficulties of frequency and voltage fluctuations and the proportional distribution of power, a distributed coordinated secondary control strategy based on the finite-time consensus protocol of multi-agent system in microgrid is proposed in this paper. The control targets of strategy are to achieve frequency and voltage without the steady state error and proportional power distribution.The strategy utilized a distributed control structure and each distributed generation exchanged the frequency voltage and power information with its neighbors to eliminate the frequency and voltage deviation in a finite-time manner. In order to overcome the shortcoming of the mismatched load impedance influencing the proportional distribution of active power, the strategy adaptively adjusted the magnitude of virtual impedances to change the impedance characteristics. Theoretical analysis and simulation results validate the effectiveness of the proposed distributed control strategy. © 2021, Harbin University of Science and Technology Publication. All right reserved.

引用

页码：45 / 53

页数：8

共 22 条

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