Open AccessResearch on voltage restoration of island microgrid based on multi-agent fixed-time algorithm
Author(s) -
Yan Zhuang,
Yan Zhao,
Mofan Wei,
Qian Liu,
Qianzhi Shao
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2005/1/012063
Subject(s) - microgrid , voltage droop , control theory (sociology) , robustness (evolution) , computer science , inverter , voltage , controller (irrigation) , distributed generation , power (physics) , control (management) , engineering , voltage source , agronomy , biochemistry , chemistry , physics , quantum mechanics , artificial intelligence , biology , electrical engineering , gene
This paper presents a distributed, robust and fixed-time secondary control for voltage restoration of an islanded microgrid with droop-controlled inverter-based distributed generators (DGs). The network inverter of AC microgrid is set as a multi-agent cooperating system, and voltage recovery can be regarded as a synchronization problem. Different from the existing distributed methods, the method in this paper can ignore the dependence on the initial conditions and the distributed controller based on consensus can restore the voltage magnitude of the island microgrid to the standard reference value in a fixed-time. In order to improve the stability, a fixed-time second-order convergent sliding mode surface is proposed. This method can quickly reach a consensus and has better anti-interference ability and robustness. Finally, the performance of the proposed control strategy is verified.