发电技术 ›› 2026, Vol. 47 ›› Issue (2): 359-369.DOI: 10.12096/j.2096-4528.pgt.260213

• 新型电力系统 • 上一篇    

考虑源荷随机波动特性的风电改进调频控制策略

张小莲, 胡淇, 郝思鹏, 黄鹏   

  1. 南京工程学院电力工程学院,江苏省 南京市 211167
  • 收稿日期:2025-06-12 修回日期:2025-08-22 出版日期:2026-04-30 发布日期:2026-04-21
  • 作者简介:张小莲(1985),女,博士,教授,研究方向为风力发电技术、微电网控制技术,zhangxl530@163.com
    胡淇(2000),男,硕士研究生,研究方向为风力发电一次调频技术,sqhuqi0729@163.com
  • 基金资助:
    国家自然科学基金项目(52107098)

Improved Frequency Regulation Control Strategy of Wind Power Considering Random Fluctuation Characteristics of Source-Load

Xiaolian ZHANG, Qi HU, Sipeng HAO, Peng HUANG   

  1. School of Electric Power Engineering, Nanjing Institute of Technology, Nanjing 211167, Jiangsu Province, China
  • Received:2025-06-12 Revised:2025-08-22 Published:2026-04-30 Online:2026-04-21
  • Supported by:
    National Natural Science Foundation of China(52107098)

摘要:

目的 大规模风电接入导致电网惯量下降,而且湍流风速下风机的波动功率合并负荷随机波动会加剧电网频率波动,为此,提出了一种基于源荷综合波动量并考虑源荷随机波动特性的风电控制策略。 方法 针对传统下垂控制策略面对不同等级的源荷波动情况下无法合理提供功率而导致调频效果较差的现象进行了机理分析,并基于湍流风速的预测值与负荷端波动量构建了源荷综合变化量。根据源荷随机波动提出一种基于源荷综合变化量的调频控制策略,并对风机有功参考值进行前馈修正,以改善风机参与电网调频的效果。 结果 MATLAB仿真与风机实验平台的结果表明,该策略提高了风机调频对于风速波动的响应能力,在源荷随机波动下的平均频率偏差、频率跌落程度方面具有明显的优越性。 结论 该策略有效优化了源荷波动下风机自身运行和参与调频之间的问题,对提高新能源高占比电网的调频能力具有重要意义。

关键词: 双碳, 风电, 下垂控制, 一次调频, 湍流特性, 源荷波动

Abstract:

Objectives Large-scale wind power integration leads to a decrease in grid inertia, and the fluctuating power of wind turbines combined with random fluctuation of load under turbulent wind speed aggravates the frequency fluctuation in the power grid. Therefore, a wind power control strategy is proposed based on the comprehensive fluctuation of source-load, considering their random fluctuation characteristics. Methods A mechanistic analysis is conducted to address the issue where traditional droop control strategy fails to provide reasonable power in response to source-load fluctuations at different levels, leading to poor frequency regulation performance. Based on the predicted turbulent wind speed and load fluctuations, a comprehensive variation of source-load is constructed. A frequency regulation control strategy based on the comprehensive variation of source-load is proposed, which involves feedforward correction of the active power reference value of the wind turbine to improve the wind turbine’s participation in grid frequency regulation. Results The results of MATLAB simulation and wind turbine experimental platform show that this strategy improves the responsiveness of wind turbine frequency regulation to wind speed fluctuation, and demonstrates a significant advantage in terms of average frequency deviation and degree of frequency drop under random source-load fluctuations. Conclusions This strategy effectively improves the issue between the wind turbine’s own operation and its participation in frequency regulation under source-load fluctuations, and is of significant importance for improving the frequency regulation capability of power grids with a high proportion of renewable energy.

Key words: dual carbon, wind power, droop control, primary frequency regulation, turbulence characteristics, source-load fluctuation

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