Control of Microgrids with Distributed Energy Storage Operating in Islanded Mode

被引：0

作者：

Sun, Chu ^{[1
]}

Joos, Geza ^{[1
]}

Bouffard, Francois ^{[1
]}

机构：

[1] McGill Univ, Dept Elect & Comp Engn, Montreal, PQ, Canada

来源：

2017 IEEE ELECTRICAL POWER AND ENERGY CONFERENCE (EPEC) | 2017年

关键词：

distributed energy storage; SoC balancing; washout filter; transient virtual resistance; small-signal modeling; AC; STABILITY; SYSTEMS; GAIN;

D O I：

暂无

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

For microgrids with multiple distributed energy storage units (ESU) operating in islanded mode, it is important to maintain desirable frequency and voltage performance while avoiding over degradation of certain ESU. In this paper, a control strategy with State-of-Charge (SoC) balancing capability and improved dynamic performance is proposed. The washout-filter based power sharing gets rid of secondary control needed for voltage and frequency deviation due to conventional droop control. The SoC balancing is realized by adjusting the power reference instead of modifying the droop slope, so desirable frequency performance can be maintained. The transient virtual resistance (TVR) can increase damping of the system without introducing voltage deviation in steady state. Parameters of the washout filter, TVR and SoC balancing control are tuned based on small-signal analysis of the reduced model of microgrids. The proposed control strategy is verified with Matlab/Simulink simulation.

引用

页码：474 / 480

页数：7

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