Analysis of Voltage Control Strategies for DC Microgrid with Multiple Types of Energy Storage Systems

IF 2.6 3区工程技术 Q2 COMPUTER SCIENCE, INFORMATION SYSTEMS

Electronics Pub Date : 2023-03-31 DOI:10.3390/electronics12071661

Zhichun Yang, Chenxia Wang, Jiawei Han, Fan Yang, Yu Shen, Huaidong Min, Wei Hu, Huihui Song

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引用次数: 6

Abstract

Direct-current (DC) microgrids have gained worldwide attention in recent decades due to their high system efficiency and simple control. In a self-sufficient energy system, voltage control is an important key to dealing with upcoming challenges of renewable energy integration into DC microgrids, and thus energy storage systems (ESSs) are often employed to suppress the power fluctuation and ensure the voltage stability. In this paper, the performances of three voltage control strategies for DC microgrids are compared, including the proportion integration (PI) control, the fuzzy PI control and particle swarm optimization (PSO) PI control. Particularly, two kinds of ESSs including battery and advanced adiabatic compressed air energy storage (AA-CAES) with different operational characteristics are installed in the microgrid, and their impacts on voltage control are investigated. The control performances are comprehensively compared under different control schemes, various scenarios of renewable energy fluctuations, participation in the control of the two ESSs or not, and different fault conditions. Additionally, the dynamic performances of the ESSs are exhibited. The results verify the validity of the control schemes and the feasibility of the configuration of the ESSs into the DC microgrid.

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多类型储能系统直流微电网电压控制策略分析

近几十年来，直流微电网以其系统效率高、控制简单等优点得到了广泛的关注。在自给自足的能源系统中，电压控制是应对直流微电网可再生能源并网挑战的重要关键，因此通常采用储能系统(ess)来抑制功率波动，保证电压稳定。本文比较了比例积分(PI)控制、模糊PI控制和粒子群优化(PSO) PI控制三种直流微电网电压控制策略的性能。在微电网中安装了两种不同运行特性的储能系统，包括蓄电池和先进绝热压缩空气储能系统(AA-CAES)，并研究了它们对电压控制的影响。综合比较了不同控制方案、不同可再生能源波动情况、是否参与控制两种ess、不同故障条件下的控制性能。此外，还展示了系统的动态性能。结果验证了控制方案的有效性，以及将ess配置到直流微电网的可行性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Electronics Computer Science-Computer Networks and Communications

CiteScore

1.10

自引率

10.30%

发文量

3515

审稿时长

16.71 days

期刊介绍： Electronics (ISSN 2079-9292; CODEN: ELECGJ) is an international, open access journal on the science of electronics and its applications published quarterly online by MDPI.