Transient Stability Enhancement of Virtual Synchronous Generators Based on Additional Frequency Control

被引：9
|
作者：
Yu, Jingrong [1 ]
Lu, Xiawei [1 ]
Xiong, Sha [1 ]
Xing, Yantao [1 ]
Liu, Wenjing [1 ]
Yu, Jiaqi [2 ]
机构：
[1] Cent South Univ, Sch Automat, Changsha 410083, Peoples R China
[2] Changsha Univ, Coll Elect Informat & Elect Engn, Changsha 410022, Peoples R China
来源：
IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS | 2024年 / 12卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Transient analysis; Power system stability; Stability criteria; Frequency control; Damping; Reactive power; Synchronous generators; Energy function; grid-connected inverter; loss of synchronization (LOS); transient stability; virtual synchronous generator (VSG); ANGLE STABILITY; POWER-SYSTEMS; SYNCHRONIZATION; INVERTERS;
D O I：
10.1109/JESTPE.2023.3343502
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Virtual synchronous generators (VSGs) are susceptible to transient instability, especially under large disturbances without equilibrium points (EPs). This article proposes an additional frequency control to restore EPs and ensure transient stability. In this control, the damping effect is enhanced to improve the transient behavior, and the additional potential energy is introduced to restore EPs after detecting the transient instability characteristics of VSGs. Compared with previous stabilizing methods, the proposed method can address transient stability issues both with and without EPs, and it does not rely on any grid information. Simulations and experiments validate the effectiveness of this method.
引用
收藏
页码：1129 / 1139
页数：11
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