上海交通大学学报

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2024 , Vol. 58 >Issue 12: 1915 - 1924

DOI: https://doi.org/10.16183/j.cnki.jsjtu.2023.161

新型电力系统与综合能源

综合惯性控制下风力机惯性支撑能力分析及等效惯量评估

  • 周涛 ,
  • 黄菊 ,
  • 韩汝帅 ,
  • 胡秦然 ,
  • 权浩
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  • 1.南京理工大学 自动化学院,南京 210094
    2.东南大学 电气工程学院,南京 210096
周 涛(1991—),博士,讲师,主要研究方向为电力系统运行与控制、新型电力系统频率稳定.
胡秦然,副教授,博士生导师;E-mail:qhu@seu.edu.cn.

收稿日期: 2023-04-28

  修回日期: 2023-08-14

  录用日期: 2023-08-17

  网络出版日期: 2023-09-06

基金资助

江苏省自然科学基金青年项目(BK20220216);中央高校基本科研业务费专项资金资助(30922010709)

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Inertial Support Capacity Analysis and Equivalent Inertia Estimation of Wind Turbines in Integrated Inertial Control

  • ZHOU Tao ,
  • HUANG Ju ,
  • HAN Rushuai ,
  • HU Qinran ,
  • QUAN Hao
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  • 1. School of Automation, Nanjing University of Science and Technology, Nanjing 210094, China
    2. School of Electrical Engineering, Southeast University, Nanjing 210096, China

Received date: 2023-04-28

  Revised date: 2023-08-14

  Accepted date: 2023-08-17

  Online published: 2023-09-06

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摘要

针对可再生能源高占比并网所引发的新型电力系统频率安全问题,风电机组多采用综合惯性控制为电力系统提供惯量及一次调频支撑.为更好地把握系统的惯量安全水平,保障电网频率稳定,首先对采用综合惯性控制的风电机组进行动态建模,根据风力机蕴含的动能及其对电网提供的频率支撑推导出风力机的有效惯量.然后,建立综合惯性控制下包含风力机的系统频率响应模型,得到风力机调频过程中有效惯性时间常数的解析式并进行惯性支撑能力分析.根据“等面积原理”推导出综合惯性控制下风力机参与调频过程的等效惯量评估方法,该方法能够对风力机提供的惯性支撑能力进行分析并给出量化结果.最后,通过算例分析验证了所提方法的有效性和可行性,并分析了不同因素对风力机等效惯量的影响.

关键词： 新型电力系统; 风力发电; 综合惯性控制; 等效惯量; 等面积原理

本文引用格式

周涛 , 黄菊 , 韩汝帅 , 胡秦然 , 权浩 . 综合惯性控制下风力机惯性支撑能力分析及等效惯量评估[J]. 上海交通大学学报, 2024 , 58(12) : 1915 -1924 . DOI: 10.16183/j.cnki.jsjtu.2023.161

Abstract

In response to the new power system frequency safety issues caused by the high percentage of renewable energy sources connected to the grid, wind turbines mostly use integrated inertia control for the inertia and primary frequency regulation support provided by the power system. In order to better improve the inertia safety of the system and guarantee the grid frequency stability, dynamic modeling of wind turbines with integrated inertia control is conducted to derive the effective inertia of the wind turbine based on the kinetic energy contained in the wind turbine and the frequency support it provides to the grid. Then, a system frequency response model of the wind turbine in integrated inertia control is established, the analytical formula of the effective inertia time constant in the process of wind turbine frequency regulation is obtained, and the inertia support capability is analyzed. Based on the “equal area principle”, the equivalent inertia evaluation method of the wind turbine in integrated inertia control is derived, which can analyze the inertial support capacity provided by the wind turbine and give quantitative results. Finally, the validity and feasibility of the proposed method is verified in a case study, and the impact of different factors on the equivalent inertia of the wind turbine is analyzed.

Key words： new power system; wind power; integrated inertial control; equivalent inertia; equal area principle

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