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

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...

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Main Authors: Zhichun Yang, Chenxia Wang, Ji Han, Fan Yang, Yu Shen, Huaidong Min, Wei Hu, Huihui Song
Format: Article
Language:English
Published: MDPI AG 2023-03-01
Series:Electronics
Subjects:
Online Access:https://www.mdpi.com/2079-9292/12/7/1661
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author Zhichun Yang
Chenxia Wang
Ji Han
Fan Yang
Yu Shen
Huaidong Min
Wei Hu
Huihui Song
author_facet Zhichun Yang
Chenxia Wang
Ji Han
Fan Yang
Yu Shen
Huaidong Min
Wei Hu
Huihui Song
author_sort Zhichun Yang
collection DOAJ
description 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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spelling doaj.art-fda8bba245f348c7b6e11c74e6756a442023-11-17T16:33:48ZengMDPI AGElectronics2079-92922023-03-01127166110.3390/electronics12071661Analysis of Voltage Control Strategies for DC Microgrid with Multiple Types of Energy Storage SystemsZhichun Yang0Chenxia Wang1Ji Han2Fan Yang3Yu Shen4Huaidong Min5Wei Hu6Huihui Song7Electric Power Research Institute, State Grid Hubei Electric Power Co., Ltd., Wuhan 430077, ChinaCollege of New Energy, Harbin Institute of Technology at Weihai, Weihai 264200, ChinaCollege of New Energy, Harbin Institute of Technology at Weihai, Weihai 264200, ChinaElectric Power Research Institute, State Grid Hubei Electric Power Co., Ltd., Wuhan 430077, ChinaElectric Power Research Institute, State Grid Hubei Electric Power Co., Ltd., Wuhan 430077, ChinaElectric Power Research Institute, State Grid Hubei Electric Power Co., Ltd., Wuhan 430077, ChinaElectric Power Research Institute, State Grid Hubei Electric Power Co., Ltd., Wuhan 430077, ChinaCollege of New Energy, Harbin Institute of Technology at Weihai, Weihai 264200, ChinaDirect-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.https://www.mdpi.com/2079-9292/12/7/1661AA-CAESDC microgridvoltage stabilization controldroop controlfuzzy PI controlPSO PI control
spellingShingle Zhichun Yang
Chenxia Wang
Ji Han
Fan Yang
Yu Shen
Huaidong Min
Wei Hu
Huihui Song
Analysis of Voltage Control Strategies for DC Microgrid with Multiple Types of Energy Storage Systems
Electronics
AA-CAES
DC microgrid
voltage stabilization control
droop control
fuzzy PI control
PSO PI control
title Analysis of Voltage Control Strategies for DC Microgrid with Multiple Types of Energy Storage Systems
title_full Analysis of Voltage Control Strategies for DC Microgrid with Multiple Types of Energy Storage Systems
title_fullStr Analysis of Voltage Control Strategies for DC Microgrid with Multiple Types of Energy Storage Systems
title_full_unstemmed Analysis of Voltage Control Strategies for DC Microgrid with Multiple Types of Energy Storage Systems
title_short Analysis of Voltage Control Strategies for DC Microgrid with Multiple Types of Energy Storage Systems
title_sort analysis of voltage control strategies for dc microgrid with multiple types of energy storage systems
topic AA-CAES
DC microgrid
voltage stabilization control
droop control
fuzzy PI control
PSO PI control
url https://www.mdpi.com/2079-9292/12/7/1661
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