Transactions of China Electrotechnical Society  2019, Vol. 34 Issue (23): 4991-5000    DOI: 10.19595/j.cnki.1000-6753.tces.181594
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Grouping Control Strategy of Battery Energy Storage Array System Based on an Improved Distributed Consensus Algorithm
Guo Wei, Zhao Hongshan
School of Electrical and Electronic Engineering North China Electric Power University Baoding 071003 China

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Abstract  For the optimal operation of battery energy storage array system composed of multiple battery units, a weighted discrete consensus algorithm based on model predictive control(MPC)was proposed. Firstly, the derivation process of the distributed algorithm was introduced in detail. By using this algorithm, the adaptive allocation of power between the same energy storage medium can be realized. Secondly, under the premise of not affecting the rated power of BESAS, the battery units were divided into a charging group and a discharging group. And a coordinated operation strategy of multiple battery units had been formulated to improve the operating environment of the battery units. In addition, the convergence rate of the proposed algorithm can be greatly improved by shrinking the weighted matrix. Finally, the actual wind farm data was used to verify the simulation. The results show that the proposed algorithm and control strategy have certain advantages in terms of control effect, convergence rate and extending battery life.
Key wordsBattery energy storage array system      distributed consensus algorithm      model predictive control(MPC)      weighted     
Received: 08 October 2018      Published: 11 December 2019
PACS: TM912  
  TM762  
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Guo Wei,Zhao Hongshan. Grouping Control Strategy of Battery Energy Storage Array System Based on an Improved Distributed Consensus Algorithm[J]. Transactions of China Electrotechnical Society, 2019, 34(23): 4991-5000.
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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.181594     OR     https://dgjsxb.ces-transaction.com/EN/Y2019/V34/I23/4991
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