综合智慧能源

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基于中间层控制的风-储自同步调频策略研究

甄文喜, 马喜平, 牛炜, 陈柏旭   

  1. 国网甘肃省电力公司, 甘肃 730030 中国
    国网甘肃省电力公司电力科学研究院, 甘肃 730070 中国
  • 收稿日期:2024-11-06 修回日期:2024-12-25

Research on the Primary Frequency Modulation Strategy of Wind-Storage Integration in Power Grid Based on Middle Layer Control

Zhen Wenxi, Ma Xiping, Niu Wei, Chen Baixu   

  1. , 730030, China
    , 730070, China
  • Received:2024-11-06 Revised:2024-12-25

摘要: 随着可再生能源在电力系统中的渗透率不断提高,风电作为清洁能源的重要组成部分,在电网频率调节中扮演着越来越重要的角色。然而,由于风电的波动性和间歇性,传统的电网调频策略面临新的挑战。针对这一问题,本文提出了一种基于中间层的风-储一体化一次调频控制技术,旨在通过协调风电机组和储能系统,共同参与电网的频率调节,提高电力系统的稳定性和可靠性。本文首先分析了储能虚拟同步调频控制的策略和效果,随后深入研究了风-储联合一次调频控制技术,并提出了一种基于变系数bang-bang控制的惯量响应自适应控制方法,实现了风电场和储能系统在电网频率变化时的优化调频功率分配。

关键词: 风-储一体化, 一次调频, 虚拟同步调频控制, 惯量响应自适应, 优化调频功率分配

Abstract: With the increasing penetration of renewable energy in the power system, wind power, as an important part of clean energy, plays an increasingly vital role in grid frequency regulation. However, due to the volatility and intermittency of wind power, traditional grid frequency modulation strategies face new challenges. In response to this issue, this paper proposes a primary frequency modulation control technology for wind-storage integration based on middle-layer control, aiming to coordinate wind turbine units and energy storage systems to jointly participate in grid frequency regulation, thereby enhancing the stability and reliability of the power system. The paper first analyzes the strategies and effects of virtual synchronous modulation control of energy storage, then delves into the research of wind-storage joint primary frequency modulation control technology, and proposes an inertial response adaptive control method based on variable coefficient bang-bang control, achieving optimized frequency modulation power allocation for wind farms and energy storage systems during grid frequency changes.

Key words: Wind-Storage Integration, Primary Frequency Modulation, Virtual Synchronous Frequency Modulation Control, Inertial Response Adaptability, Optimized Modulation Power Allocation