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电化学储能应用于电网频率安全防御三道防线的探讨
作者:
作者单位:

1.华北电力大学电气与电子工程学院;2.南瑞集团有限公司(国网电力科学研究院有限公司),江苏省南京市 211106;3.智能电网保护和运行控制国家重点实验室,江苏省南京市 211106;4.国网能源研究院有限公司

作者简介:

通讯作者:

基金项目:

国家电网有限公司科技项目资助(受端电网规模化储能规划技术研究及应用,5102-201918309A-0-0-00)。


Discussion on Application of Electrochemical Energy Storage to Three Defense Lines of Power Grid Frequency
Author:
Affiliation:

1.School of Electrical and Electronic Engineering, North China Electric Power University, Beijing 102206, China;2.NARI Group Corporation (State Grid Electric Power Research Institute), Nanjing 211106, China;3.State Key Laboratory of Smart Grid Protection and Control, Nanjing 211106, China;4.State Grid Energy Research Institute Co., Ltd., Beijing 102209, China

Fund Project:

This work is supported by State Grid Corporation of China (Research and Application of Large-scale Energy Storage Planning Technology in Receiving-end Power Grid, No. 5102-201918309A-0-0-00).

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    摘要:

    随着特高压直流的推广应用及新能源发电占比的不断提高,电网暂态频率安全保障技术面临着严峻挑战。电化学储能作为一种潜力巨大的灵活控制资源引起了广泛关注。从中国电网频率安全防御的三道防线着眼,基于储能的快速功率调节特性,分析了储能在频率稳定预防控制、紧急控制和校正控制中的定位,以不同场景下电网运行频率的控制目标为依据,探讨了面向暂态频率安全保障的电化学储能的容量配置技术要点,包括时域仿真中的计算条件选择、与传统控制措施的协调配合等方面,然后针对推动储能技术规模化应用中面临的主要问题,指出应在适应多应用场景的储能优化配置、储能电站优化运行模式研究、储能全生命周期的效益分析等研究方向开展深入研究。

    Abstract:

    With the promotion and application of ultra-high-voltage direct current (UHVDC) and the continuous increasing proportion of renewable energy generation, the technology to ensure system transient frequency security is facing severe challenges. Electrochemical energy storage has attracted widespread attention as a potential control resource in the power system. From the perspective of the three defense lines of frequency security defense system in Chinese power grid, the position of energy storage in the prevention control, emergency control and correction control of frequency stability is analyzed based on the fast power regulation characteristics of battery storage. According to the control target of grid frequency in different scenarios, the key points of capacity allocation for electrochemical energy storage to support transient frequency security are discussed, including the conditions in time-domain simulation, coordination with traditional control measures, etc. Then in view of promoting the large-scale application of energy storage, the further research such as the optimal configuration of energy storage adapting to multiple application scenarios, optimal operation modes of energy storage power stations and the analysis of the entire life cycle of energy storage should be carried out.

    图1 中国某大区电网典型日频率响应曲线Fig.1 Typical daily frequency response curve of a large regional power grid in China
    图2 某受端电网典型日抽水蓄能与负荷曲线Fig.2 Typical daily pumping and load curves of a receiving-end power grid
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引用本文

李兆伟,方勇杰,李威,等.电化学储能应用于电网频率安全防御三道防线的探讨[J/OL].电力系统自动化,http://doi.org/10.7500/AEPS20191101007.
LI Zhaowei,FANG Yongjie,LI Wei,et al.Discussion on Application of Electrochemical Energy Storage to Three Defense Lines of Power Grid Frequency[J/OL].Automation of Electric Power Systems,http://doi.org/10.7500/AEPS20191101007.

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  • 收稿日期:2019-11-01
  • 最后修改日期:2020-02-21
  • 录用日期:2019-11-26
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