阻抗分析法在风电并网次同步振荡研究中的应用综述

 

王泽祺，曾蕴睿，许博，蒋天雨，李犀郡，李亭奕

(国网四川省电力公司天府新区供电公司，四川 成都 610213)

 

    摘 要 ：阻抗分析在风电并网次同步振荡稳定性研究中具有重要作用。围绕并网逆变器的阻抗建模、 稳定性判据及测量技术展开研究，介绍了风电并网系统基于阻抗分析法的三种建模方法，并给出了它们 之间的相互转换关系及应用特点 ；总结了基于阻抗分析法的稳定性判据 ；归纳了阻抗测量的关键技术， 包括离线与在线测量方案及其实现特点。在此基础上指出现有研究的局限性，未来通过精细化建模、多 判据融合和先进测量技术，构建覆盖全场景的风电并网系统稳定性分析体系，为新能源高占比电力系统的安全稳定提供支撑。

    关键词 ： 风电并网系统 ；次同步振荡 ；阻抗分析法 ；阻抗建模 ；稳定性判据 ；阻抗测量

    中图分类号 ：TM614 ；TM933     文献标识码 ：A     文章编号 ：1007-3175(2025)12-0001-08

 

Review on the Application of Impedance Analysis Method in the Research of Subsynchronous Oscillation of Wind Power Grid Integration

 

WANG Ze-qi, ZENG Yun-rui, XU Bo, JIANG Tian-yu, LI Xi-jun, LI Ting-yi

（State Grid Sichuan Electric Power Company Tianfu New Area Power Supply Company, Chengdu 610213, China）

 

    Abstract: Impedance analysis plays an important role in the research on subsynchronous oscillation stability of wind power grid integration. Focusing on the impedance modeling, stability criteria and measurement technology of grid-connected inverters, this paper introduces three modeling methods for wind power grid integration systems based on impedance analysis, and presents their mutual conversion relationships and application characteristics; summarizes the stability criteria based on impedance analysis; and concludes the key technologies of impedance measurement, including offline and online measurement schemes as well as their implementation features. On this basis, the limitations of existing research are pointed out. In the future, through refined modeling, multi-criterion fusion and advanced measurement technology, a full-scenario stability analysis system for wind power grid integration systems should be constructed to provide support for the safety and stability of power systems with a high proportion of new energy.

    Key words: wind power grid integration system; subsynchronous oscillation; impedance analysis method; impedance modeling; stability criteria; impedance measurement

 

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