Transactions of China Electrotechnical Society  2019, Vol. 34 Issue (18): 3897-3908    DOI: 10.19595/j.cnki.1000-6753.tces.181061
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The Self-Adaption Control Strategy of Energy Storage Batteries Participating in the Primary Frequency Regulation
Li Xinran1, Cui Xiwen1, Huang Jiyuan2, Li Shujuan1, Meng Ya1
1. College of Electrical and information Engineering Hunan University Changsha 410082 China;
2. Grid Hunan Electric Power Limited Corporation Changsha Power Supply Company Changsha 410015 China

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Abstract  Considering frequency characteristics in the power system, this paper proposes a self-adaption control strategy for energy storage batteries participating in the primary frequency regulation based on the dynamic combination of virtual inertial control and virtual droop control. By analyzing the influence of the two control strategies on frequency characteristics, a model is proposed, which can adjust the proportions of two control modes automatically when the frequency deviation and the rate of change of frequency change. This model can achieve the complementary advantages of the two control strategies. At the same time, it can realize the smooth switching between the two control strategies, which can effectively avoid the secondary disturbance caused by the direct switching of the two control strategies. Based on this model, a self-adaption control strategy of energy storage batteries participating in the primary frequency regulation is presented. Considering the evaluation indexes of frequency regulation, the parameters of power and capacity of energy storage batteries are obtained by the output of energy storage batteries. Finally, compared with the control strategies of the direct switching between the virtual droop and the virtual inertial, the proposed control strategy is verified by the operation of step disturbance and continuous disturbance. The results show that using the control strategies proposed in this paper can achieve better effect of frequency regulation with a smaller power demand of energy storage batteries, while reducing the reserve capacity of traditional generators.
Key wordsEnergy storage battery      frequency regulation      proportion allocation      capacity allocation     
Received: 21 June 2018      Published: 26 September 2019
PACS: TM732  
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Li Xinran
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Li Shujuan
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Cite this article:   
Li Xinran,Cui Xiwen,Huang Jiyuan等. The Self-Adaption Control Strategy of Energy Storage Batteries Participating in the Primary Frequency Regulation[J]. Transactions of China Electrotechnical Society, 2019, 34(18): 3897-3908.
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