Influence of Virtual Synchronous Generators on Low Frequency Oscillations

Hui Liu; Dawei Sun; Peng Song; Xuekun Cheng; Feng Zhao; Yunfeng Tian

doi:10.17775/CSEEJPES.2020.01700

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Influence of Virtual Synchronous Generators on Low Frequency Oscillations

Regular Papers | 更新时间：2026-10-15

- Influence of Virtual Synchronous Generators on Low Frequency Oscillations
- CSEE Journal of Power and Energy Systems Vol. 8, Issue 4, Pages: 1029-1038(2022)
- 作者机构：
  
  1. State Grid Wind-Photovoltaic-Energy Storage Hybrid Power Generation Technology Laboratory and State Grid Jibei Electric Power Research Institute (North China Electric Power Research Insititute Co. Ltd),Beijing,China
  2. State Grid Jibei Electric Power Co. Ltd,Beijing,China
  3. State Grid Xinyuan Zhangjiakou Wind, Photovoltaic, Storage and Transmission Pilot Power Station Co. Ltd,Zhangjiakou,China
- 作者简介：
- 基金信息：
- DOI：10.17775/CSEEJPES.2020.01700
  CLC：
- Published：01 July 2022
- 稿件说明：
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Hui Liu, Dawei Sun, Peng Song, et al. Influence of Virtual Synchronous Generators on Low Frequency Oscillations[J]. CSEE Journal of Power and Energy Systems, 2022, 8(4): 1029-1038.
DOI：

Hui Liu, Dawei Sun, Peng Song, et al. Influence of Virtual Synchronous Generators on Low Frequency Oscillations[J]. CSEE Journal of Power and Energy Systems, 2022, 8(4): 1029-1038. DOI： 10.17775/CSEEJPES.2020.01700.

摘要

Abstract

By simulating the operating dynamics of synchronous generators (SGs)

the use of virtual synchronous generators (VSGs) can help overcome inverter-based generators' shortcomings of low inertia and minimal damping for grid-forming applications. VSGs' stability are very important for their solar and wind electricity applications. Currently

the related research primarily focuses on VSGs and their applications for microgrids. There has been little research to explore how VSGs effect low frequency oscillations in power transmission systems. This paper describes a small-signal model of a VSG-SG interconnected system

which is suitable for studying low frequency oscillation damping in a power transmission grid. Based on this model

the effects of VSGs on low frequency oscillations are compared with the effects of SGs to reveal the mechanism of how VSGs influence damping characteristics. The influence of each VSG control loop on oscillations is also analyzed in this paper. Then

the low frequency oscillation risks with different types of VSGs are described. Finally

experiments on a real-time laboratory (RT-LAB) platform are conducted to verify the small-signal analysis results.

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