考虑荷电状态的储能系统参与电网一次调频控制策略
Energy Storage-assisted Power System Primary Frequency Regulation Strategy Considering State of Charge
范朝峰1
作者信息
- 1. 国家电投集团江苏电力有限公司,江苏南京 210009
- 折叠
摘要
基于电池储能系统参与电网一次调频的模型,考虑新能源出力波动对电网频率产生的影响,综合考虑电池荷电状态和电网运行状态的限制,对调频死区内部和外部采用不同的控制方法.仿真结果显示,所提出的策略能够有效地减小频率波动,并使电池储能系统荷电状态恢复到较好的状态,有效解决了荷电状态偏低或偏高时电池储能系统参与调频能力较差的问题.
Abstract
This paper establishes a model for primary frequency regulation with the participation of battery-based energy storage systems,and proposes a regulation strategy entailing specific control methods independently for the dead band and for the usual band by considering the impact of output fluctuations of renewable energy generations and the constraints by battery state of charge and grid operating condition.Simulation results show that the proposed strategy achieves obvious reduction in frequency fluctuations and recovery of battery state of charge to a better level,thereby overcoming the prob-lem of insufficient frequency regulation ability of batteries with excessive low or high states of charge.
关键词
电池储能系统/一次调频/荷电状态Key words
battery-based energy storage system/primary frequency regulation/state of charge引用本文复制引用
出版年
2024
NETL
NSTL
万方数据