SVG控制模式对新能源场站宽频振荡作用机理分析及工程实践（一）：阻抗建模与机理分析

HE Meng; LI Guanghui; WANG Weisheng; GUO Zixuan; LEI Yu

doi:10.13336/j.1003-6520.hve.20260405

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SVG控制模式对新能源场站宽频振荡作用机理分析及工程实践（一）：阻抗建模与机理分析

更新时间：2026-09-24

- SVG控制模式对新能源场站宽频振荡作用机理分析及工程实践（一）：阻抗建模与机理分析
- Vol. 52, Issue 9, Pages: 4081-4091(2026)
- 作者机构：
  
  可再生能源并网全国重点实验室(中国电力科学研究院有限公司)
- 作者简介：
- 基金信息：
- DOI：10.13336/j.1003-6520.hve.20260405
  CLC：
- Received：30 September 2026，
  
  Published：2026
- 稿件说明：
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HE Meng, LI Guanghui, WANG Weisheng, et al. SVG控制模式对新能源场站宽频振荡作用机理分析及工程实践（一）：阻抗建模与机理分析[J]. 2026, 52(9): 4081-4091.
DOI：

HE Meng, LI Guanghui, WANG Weisheng, et al. SVG控制模式对新能源场站宽频振荡作用机理分析及工程实践（一）：阻抗建模与机理分析[J]. 2026, 52(9): 4081-4091. DOI： 10.13336/j.1003-6520.hve.20260405.

摘要

随着新能源大规模并网，新能源场站宽频振荡事故频繁发生。新能源场站除了风电、光伏发电装备，还配置静止无功发生器(static var generator，SVG)。目前关于SVG控制模式对场站宽频振荡作用通路及主导环节定位的模型缺失、机理不清。该文首先构建了定无功功率/定交流电压不同模式下SVG小信号传递关系，建立相应的阻抗模型，并进一步构建了包含新能源发电、SVG、电网的三端口网络模型；然后，定量分析SVG不同控制模式阻抗特性差异产生原因，以及对系统阻抗的影响，并揭示了SVG控制模式对新能源场站振荡的作用规律；最后，基于MATLAB/Simulink仿真平台，开展了SVG不同控制模式对新能源场站宽频振荡影响的仿真实验，验证了分析结论的正确性。

Abstract

With the large-scale grid integration of renewable energy (RE) generation

frequent occurrences of broadband oscillations have been observed in RE plants. RE plants incorporate devices such as static var generators (SVG) besides wind turbines and photovoltaic (PV) generation units.Analytical models and mechanistic understanding remain deficient in characterizing the impact pathways and dominant contributing factors of SVG control modes on broadband oscillations in RE plants. This paper first constructs the small-signal transfer relations of SVG under different control modes (reactive power control mode and AC voltage control mode)

establishes a three-port network model comprising RE generation

SVG

and the power grid. Subsequently

quantitative analysis is conducted to determine the causes of impedance characteristics discrepancies under different SVG control modes and their impacts on system impedance

and the influence patterns of SVG control modes on RE plant oscillations is revealed. Finally

simulation experiments on the impact of different SVG control modes on broadband oscillations in RE stations were conducted based on the MATLAB/Simulink simulation platform

verifying the correctness of the analytical conclusions.

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