构网型虚拟同步机系统振荡传递机理研究

熊新华; 李畅; 杨雅倩; 袁军; 赵婵娟

doi:10.19912/j.0254-0096.tynxb.2025-0647

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太阳能学报 ›› 2026, Vol. 47 ›› Issue (8) : 558-565. DOI: 10.19912/j.0254-0096.tynxb.2025-0647

构网型虚拟同步机系统振荡传递机理研究

熊新华¹, 李畅¹, 杨雅倩², 袁军¹, 赵婵娟³

作者信息 +

INVESTIGATION OF OSCILLATION TRANSMISSION MECHANISMS IN GRID-FORMING VIRTUAL SYNCHRONOUS GENERATOR SYSTEMS

Xiong Xinhua¹, Li Chang¹, Yang Yaqian², Yuan Jun¹, Zhao Chanjuan³

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文章历史 +

摘要

为解决高比例新能源并网背景下电力系统惯量与阻尼不足的问题,构网型虚拟同步机（GFM-VSG）系统通过模拟传统同步发电机的运行机制与动态特性,为电网提供惯量与阻尼支撑。为解决问题,构建振荡传递效应模型及评估方法,以揭示振荡传递机理,并深入分析系统出现次同步振荡现象失稳的根源。研究发现：GFM-VSG系统中出现次同步振荡现象并非完全由于系统稳定裕度不足,也归因于不同电气量间的振荡传递效应。基于所提出的振荡传递效应评估框架及分析方法,可对GFM-VSG系统振荡传递效应进行定量评估。最后,通过实验验证所提建模方法与评估框架的有效性与可行性。

Abstract

To address the insufficient inertia and damping of power systems under high-penetration renewable energy integration, the grid-forming virtual synchronous generator （GFM-VSG） system emulates the operating mechanisms and dynamic characteristics of traditional synchronous generators to provide inertia and damping support to the grid. To address this issue, this paper aims to develop a model and assessment method for oscillation transfer effects, revealing the underlying mechanisms of oscillation transmission and analyzing the root causes of SSO-related instability in depth. The study finds that sub-synchronous oscillations in GFM-VSG systems are not solely caused by insufficient stability margins but may also result from oscillation transfer effects between different electrical quantities. Based on the proposed oscillation transfer effect assessment framework and analytical method, the oscillation transfer effects in GFM-VSG systems can be quantitatively evaluated. Finally, experiments verify the effectiveness and feasibility of the proposed modeling method and assessment framework.

导出引用

熊新华, 李畅, 杨雅倩, 袁军, 赵婵娟. 构网型虚拟同步机系统振荡传递机理研究[J]. 太阳能学报. 2026, 47(8): 558-565 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0647

Xiong Xinhua, Li Chang, Yang Yaqian, Yuan Jun, Zhao Chanjuan. INVESTIGATION OF OSCILLATION TRANSMISSION MECHANISMS IN GRID-FORMING VIRTUAL SYNCHRONOUS GENERATOR SYSTEMS[J]. Acta Energiae Solaris Sinica. 2026, 47(8): 558-565 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0647

中图分类号： TM712

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