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Open AccessArticle

Voltage/Frequency Deviations Control via Distributed Battery Energy Storage System Considering State of Charge

1
The College of Electronics and Information, Hangzhou Dianzi University, Hangzhou 310018, China
2
College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China
*
Author to whom correspondence should be addressed.
Appl. Sci. 2019, 9(6), 1148; https://doi.org/10.3390/app9061148
Received: 26 February 2019 / Revised: 17 March 2019 / Accepted: 18 March 2019 / Published: 18 March 2019
(This article belongs to the Special Issue Energy Management and Smart Grids)
In recent years, the installation of distributed generation (DG) of renewable energies has grown rapidly. When the penetration of grid-integrated DGs are getting high, the voltage and frequency of the power system may cause deviation. We propose an algorithm that reduces voltage and frequency deviation by coordinating the control of multiple battery energy storage systems (BESSs). The proposed algorithm reduces the total number of charging and discharging times by calculating the sensitivity coefficient of BESS at different nodes and then selecting the appropriate BESSs to operate. The algorithm is validated on a typical distribution testing system. The results show that the voltage and frequency are controlled within the permissible range, the state of charge of BESSs are controlled within the normal range, and the total number of charging and discharging cycles of BESSs are reduced. View Full-Text
Keywords: battery energy storage system (BESS); coordinated control; voltage control; frequency control; state of charge (SOC) battery energy storage system (BESS); coordinated control; voltage control; frequency control; state of charge (SOC)
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Hua, Y.; Shentu, X.; Xie, Q.; Ding, Y. Voltage/Frequency Deviations Control via Distributed Battery Energy Storage System Considering State of Charge. Appl. Sci. 2019, 9, 1148.

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