• CSCD核心库收录期刊
  • 中文核心期刊
  • 中国科技核心期刊

Electric Power Construction ›› 2020, Vol. 41 ›› Issue (6): 69-76.doi: 10.12204/j.issn.1000-7229.2020.06.009

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Control Method of Large-Scale Battery Energy Storage System for Suppressing the Disturbance of Power Grid

JIA Xuecui 1, LI Xiangjun 1, WAN Jun 2, LI Wenqi3, HUO Fangqiang2   

  1. 1. China Electric Power Research Institute, Beijing 100192, China; 2. School of Electrical and Electronic Engineering, North China Electric Power University, Beijing 102206,China; 3. State Grid Henan Electric Power Company, Zhengzhou 450052, China
  • Online:2020-06-01
  • Supported by:
    This work is supported by State Grid Corporation of China Research Program(No. DG71-17-012).

Abstract: In order to meet the demand of power grid regulation, this paper proposes an optimal control method for large-scale battery energy storage to suppress the disturbance of power grid. According to the balance relationship among grid frequency, voltage, active power and reactive power, this paper firstly establishes a power control model of large-scale battery energy storage system considering the battery state of charge constraints. The control model includes measurement filtering, gain, dead zone, control and other complete links. On this basis, the frequency-modulation and voltage-regulation control model of large-scale battery energy storage suitable for grid regulation is derived. According to the regulation requirements of power grid and battery energy storage system with different capacity, the improved response-curve method is applied to optimize the control parameters in the model, so as to improve the flexibility and adaptability of the control system. Software PSASP is used to verify the effectiveness of the optimal control method of large-scale battery energy storage to suppress the disturbance of power grid. The results show that the system frequency can be controlled between 49.8~50.2 Hz and the bus voltage can be controlled between UN±10%UN using the proposed power control method when the grid frequency and voltage are abnormal due to large power disturbance.

Key words: battery energy storage, frequency and voltage regulation, transfer function, control model

CLC Number: