发电技术 ›› 2024, Vol. 45 ›› Issue (2): 282-290.DOI: 10.12096/j.2096-4528.pgt.22118

• 双碳背景下灵活性发电技术 • 上一篇    下一篇

基于双锁相环的海上风场综合惯量调频策略研究

刘林1, 王大龙1, 綦晓2, 周振波1, 林焕新3, 蔡传卫3   

  1. 1.南方电网南方海上风电联合开发有限公司,广东省 珠海市 519070
    2.暨南大学能源电力研究中心,广东省 珠海市 519070
    3.中国能源建设集团广东省电力设计研究院有限公司,广东省 广州市 510663
  • 收稿日期:2023-05-23 出版日期:2024-04-30 发布日期:2024-04-29
  • 通讯作者: 綦晓
  • 作者简介:刘林(1983),男,工程师,研究方向为电力系统自动化、海上风电监控系统建设调试和运行,liu_lin145@163.com
    綦晓(1992),男,博士,讲师,研究方向为高比例新能源电力系统频率控制及优化,本文通信作者,qixiao.jnu@gmail.com
  • 基金资助:
    国家自然科学基金青年项目(52106244);广东省基础与应用基础研究基金青年项目(2021A1515110016);中央高校基本科研业务费青年项目(21620336)

Study on Double Phase-Locked Loop on the Synthetic Inertia Control of Offshore Wind Farm Frequency Regulation

Lin LIU1, Dalong WANG1, Xiao QI2, Zhenbo ZHOU1, Huanxin LIN3, Chuanwei CAI3   

  1. 1.China Southern Power Grid Southern Offshore Wind Power Joint Development Co. , Ltd. , Zhuhai 519070, Guangdong Province, China
    2.Energy and Electricity Research Center, Jinan University, Zhuhai 519070, Guangdong Province, China
    3.Guangdong Electric Power Design Institute of China Energy Engineering Group Co. , Ltd. , Guangzhou 510663, Guangdong Province, China
  • Received:2023-05-23 Published:2024-04-30 Online:2024-04-29
  • Contact: Xiao QI
  • Supported by:
    National Natural Science Foundation of China(52106244);Guangdong Basic and Applied Basic Research Foundation(2021A1515110016);the Fundamental Research Funds for the Central Universities(21620336)

摘要:

海上风电作为构建以新能源为主体的新型电力系统的重要组成部分将在沿海城市迅速发展,大规模海上风电并网将大幅削减系统惯量,降低频率抗扰能力。为此,提出基于双锁相环的海上风场综合惯量控制策略。首先,从理论上分析了锁相环对风机虚拟惯量的影响机理,探究了参数变化下风机惯量支撑能力和系统频率响应特性;其次,通过分析锁相环参数变化对风机一次调频能力的消极影响,提出基于变参数-快速双锁相环的海上风场综合惯量调频策略;最后,通过仿真验证所提调频策略的有效性。结果表明,综合惯量控制策略在频率响应快速性、抑制测量噪声等方面均具有显著优势。

关键词: 海上风场, 综合惯量控制, 调频策略, 新型电力系统, 锁相环

Abstract:

To build the new power system with the main body of new energy, the offshore wind farm (OWF) is an important part and has been rapidly developed in coastal cities. However, the large-scale OWFs also reduce the inertia of power systems, which significantly decreases the anti-disturbance capability of system frequency Therefore, a synthetic inertia control strategy for OWF based on dual phase-locked loops (PLL) was proposed. First, the influence mechanism of PLL on virtual inertia of wind turbine was theoretically analyzed for variable parameter PLL. And the variation rule of wind turbine inertia support capacity and system frequency response characteristics with parameter changing PLL was explored. Then, the double PLL based OWF frequency regulation strategy was proposed through analyzing the negative effect of primary frequency regulation characteristics caused by the variable parameter of PLL. Finally, the effectiveness of the proposed frequency regulation strategy was verified though simulations. The results show that the proposed method has significant advantages in frequency response speed and frequency measurement noise suppression.

Key words: offshore wind farm, synthetic inertia control, frequency regulation strategy, new-type power system, phase-locked loop

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