电力系统自动化2025，Vol.49Issue(12)：11-30,20.DOI:10.7500/AEPS20240308001
多虚拟同步发电机主导系统稳定性分析方法及提高措施综述
Review of Stability Analysis Methods and Improvement Measures for Power System Dominated by Multiple Virtual Synchronous Generators
摘要
Abstract
With the increasing proportion of power electronic devices in the power grid,the absence of moment of inertia of power electronic devices and their complex interactions with the power grid lead to severe frequency security challenges for power systems,especially for microgrid systems with almost entire power electronization.The virtual synchronous generator(VSG)technology provides effective virtual inertia support for the power grid by simulating the external characteristics of conventional synchronous generators.In the future,scenarios involving the collaborative support of multiple VSGs in new power systems are expected to be widespread.Ensuring the stable operation of the power system after the introduction of VSG technology is the key to the large-scale application of this technology.It is necessary to focus on the stability issue of VSG technology.This paper first reviews the progress of VSG stability research in the main distribution network,introduces the principle of VSG technology,and reviews topological structures and characteristics of the current-source VSG and the voltage-source VSG.Then,from the perspective of the single VSG to the collaboration of multiple VSGs,the mainstream analysis methods and stability enhancement measures for both the small-signal stability and the transient stability are described in detail.Focusing on the stability issue of VSG technology applied in microgrids,this paper analyzes the stability difficulties faced by VSG technology in a full-time sequence from the initial stage of microgrid construction to the stage of normal scheduling and at multiple levels from the equipment level to the system level.Finally,the ideas and suggestions for the subsequent development of VSG stability research are given.关键词
新型电力系统/虚拟同步发电机/小信号稳定性/暂态稳定性/微电网/黑启动/集群控制Key words
new power system/virtual synchronous generator(VSG)/small-signal stability/transient stability/microgrid/black start/cluster control引用本文复制引用
胡秦然,巫绍辉,韩汝帅,张旺,钱涛,全相军,侯凯,吴在军..多虚拟同步发电机主导系统稳定性分析方法及提高措施综述[J].电力系统自动化,2025,49(12):11-30,20.基金项目
国家自然科学基金资助项目(52277086) （52277086）
江苏省杰出青年基金资助项目(BK20230027). 本文研究得到江苏省智能电网与装备重点实验室重点项目资助,特此感谢! This work is supported by National Natural Science Foundation of China(No.52277086)and Jiangsu Provincial Science Fund for Distinguished Young Scholars(No.BK20230027). （BK20230027）
