计及频率动态响应的VSG自适应暂态稳定控制策略

ZHANG Hanyu; PAN Hongbin; CHEN Yandong; LUO Cong; XU Jiacheng; TAN Wenbo

doi:10.19783/j.cnki.pspc.250038

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计及频率动态响应的VSG自适应暂态稳定控制策略

更新时间：2025-12-23

- 计及频率动态响应的VSG自适应暂态稳定控制策略
- Power System Protection and Control Issue 23, (2025)
- 作者机构：
  
  1. 1.湘潭大学自动化与电子信息学院,湖南,湘潭,411105
  2. 国家电能变换与控制工程技术研究中心 (湖南大学)， ),湖南,长沙,410082
- 作者简介：
- 基金信息：
- DOI：10.19783/j.cnki.pspc.250038
  CLC：
- Published：2025
- 稿件说明：
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ZHANG Hanyu, PAN Hongbin, CHEN Yandong, et al. 计及频率动态响应的VSG自适应暂态稳定控制策略[J]. Power System Protection and Control, 2025, (23).
DOI：

ZHANG Hanyu, PAN Hongbin, CHEN Yandong, et al. 计及频率动态响应的VSG自适应暂态稳定控制策略[J]. Power System Protection and Control, 2025, (23). DOI： 10.19783/j.cnki.pspc.250038.

摘要

电网大扰动故障下，虚拟同步发电机(virtual synchronous generator

VSG)存在严重的暂态失稳风险。其中功角稳定和频率稳定是VSG安全稳定运行的两个重要因素，而现有文献缺少对这两个问题的综合考虑。为此，首先建立VSG大信号等值模型，分析不同故障深度下VSG控制参数对暂态功角稳定性和频率稳定的影响，揭示了功角稳定和频率稳定之间的矛盾。然后，提出了一种基于角频率负反馈的自适应暂态控制策略。该方法通过引入虚拟惯量、虚拟阻尼和有功参考功率重塑VSG暂态特性，进而增强功角稳定和频率稳定。为了进一步优化系统暂态特性，给出一种计及频率动态响应的控制参数设计方法并定量刻画参数可行域。最后，通过Simulink仿真与RT-Lab半实物实验，验证了所提方法及参数设计的有效性。

Abstract

Under large disturbances in power grids

virtual synchronous generators (VSG) face a high risk of transient instability. Among them

power angle stability and frequency stability are two key factors for ensuring safe and stable VSG operation. However

existing studies seldom consider these two aspects in an integrated manner. To address this gap

a VSG large signal equivalent model is first established

and the influence of VSG control parameters on transient power angle stability and frequency stability under different fault depths is analyzed

revealing the inherent conflict between the two stability objectives. Subsequently

an adaptive transient control strategy based on angular frequency negative feedback is proposed. By introducing virtual inertia

virtual damping

and virtual power reshaping

this method enhances both rotor angle stability and frequency stability. To further optimize the transient performance

a control parameter design method that accounts for frequency dynamic response is proposed

along with a quantitative characterization of the feasible domain of parameters. Finally

the effectiveness of the proposed method and parameter design is verified through Simulink and RT-Lab hardware-in-the-loop (HIL) platform

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