• CSCD核心库收录期刊
  • 中文核心期刊
  • 中国科技核心期刊

电力建设 ›› 2020, Vol. 41 ›› Issue (6): 69-76.doi: 10.12204/j.issn.1000-7229.2020.06.009

• 储能系统关键技术 ·栏目主持 李建林教授级高级工程师· • 上一篇    下一篇

平抑电网大功率扰动的规模化电池储能系统控制方法

贾学翠1, 李相俊1, 万君2, 李文启3, 霍方强2   

  1. 1.中国电力科学研究院有限公司,北京市 100192;2.华北电力大学电气与电子工程学院,北京市 102206;3.国网河南省电力公司,郑州市 450052
  • 出版日期:2020-06-01
  • 作者简介:贾学翠(1984),女,硕士,高级工程师,主要研究方向为大规模储能控制与应用技术; 李相俊(1979),男,博士,教授级高级工程师,主要研究方向为大规模储能技术、新能源与分布式发电、电力系统运行与控制; 万君(1996),女,硕士研究生,主要研究方向为电力系统分析与控制; 李文启(1963),男,本科,教授级高级工程师,主要研究方向为大电网安全稳定、规模化储能技术应用; 霍方强(1998),男,硕士研究生,主要研究方向为电力系统分析与控制。
  • 基金资助:
    国家电网有限公司总部科技项目“多点布局分布式储能系统在电网的聚合效应研究及应用示范”(DG71-17-012)

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).

摘要: 为了满足电网调控需求,提出了规模化电池储能系统平抑电网故障下大功率扰动的优化控制方法。基于电网频率、电压与有功、无功功率的平衡关系,首先建立了考虑电池荷电状态约束的规模化电池储能系统有功、无功功率控制模型,该控制模型包含测量滤波环节、增益环节、死区环节、控制环节等完整环节,在此基础上推导出适用于电网调控的规模化电池储能系统调频、调压控制模型。针对不同容量电池储能系统和电网的调控需求,应用改进的响应曲线法对模型中的控制参数进行优化,从而提高控制系统的灵活性和适应性。最后,应用PSASP软件验证了规模化电池储能系统平抑电网故障下大功率扰动的优化控制方法的有效性。结果表明:当电网大功率扰动引起电网频率、电压异常时,提出的规模化电池储能系统有功、无功控制方法可将系统频率控制在49.8~50.2 Hz,将母线电压控制在UN±10%UN,满足系统频率电压要求。

关键词: 电池储能, 调频调压, 传递函数, 控制模型

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

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