Small-Signal Stability Research of Grid-Connected Virtual Synchronous Generators

Shengyang Lu, Yu Zhu, Lihu Dong, Guangyu Na, Yan Hao, Guanfeng Zhang, Wuyang Zhang, Shanshan Cheng, Junyou Yang and Yuqiu Sui
Additional contact information
Shengyang Lu: School of Electrical Engineering, Shenyang University of Technology, Shenyang 110870, China
Yu Zhu: Electric Power Research Institute of State Grid Liaoning Electric Power Supply Co., Ltd., Shenyang 110006, China
Lihu Dong: School of Electrical Engineering, Shenyang University of Technology, Shenyang 110870, China
Guangyu Na: State Grid Liaoning Electric Power Supply Co., Ltd., Shenyang 110006, China
Yan Hao: School of Electrical Engineering, Shenyang University of Technology, Shenyang 110870, China
Guanfeng Zhang: Electric Power Research Institute of State Grid Liaoning Electric Power Supply Co., Ltd., Shenyang 110006, China
Wuyang Zhang: Electric Power Research Institute of State Grid Liaoning Electric Power Supply Co., Ltd., Shenyang 110006, China
Shanshan Cheng: School of Electrical Engineering, Shenyang University of Technology, Shenyang 110870, China
Junyou Yang: School of Electrical Engineering, Shenyang University of Technology, Shenyang 110870, China
Yuqiu Sui: School of Electrical Engineering, Shenyang University of Technology, Shenyang 110870, China

Energies, 2022, vol. 15, issue 19, 1-17

Abstract: The virtual synchronous generator (VSG) technique is used to simulate the external characteristics of a synchronous generator (SG) to provide certain damping and inertia to power systems. However, it may easily cause low-frequency oscillation of the power system. We studied the small-signal stability of a grid-connected virtual synchronous generator. Firstly, the small-signal models of single-VSG and multi-VSG grid-connected systems were established. Subsequently, the system eigenvalues were obtained by solving the state matrix, and the system oscillation modes were analyzed. The eigenvalue analysis method was used to analyze the impacts of parameter changes, such as virtual moment of inertia, virtual damping coefficient, line resistance, and line inductance, on system stability. Finally, our conclusions were verified by numerous simulation models.

Keywords: virtual synchronous generator (VSG); low-frequency oscillation; small-signal model; stability analysis (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.mdpi.com/1996-1073/15/19/7158/pdf (application/pdf)
https://www.mdpi.com/1996-1073/15/19/7158/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:15:y:2022:i:19:p:7158-:d:928555

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().