Performance Improvement of VSG Dynamic Frequency Considering DC-Side Voltage Stability

Jican Lin; Shenquan Liu; Gang Wang

doi:10.17775/CSEEJPES.2024.00970

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Performance Improvement of VSG Dynamic Frequency Considering DC-Side Voltage Stability

Regular Papers | 更新时间：2026-04-16

- Performance Improvement of VSG Dynamic Frequency Considering DC-Side Voltage Stability
- Performance Improvement of VSG Dynamic Frequency Considering DC-Side Voltage Stability
- 中国电机工程学会电力与能源系统学报(英文) 2026年12卷第2期页码：864-877
- 作者机构：
  
  School of Electric Power Engineering, South China University of Technology,Guangzhou,China
- 作者简介：
- 基金信息：
- DOI：10.17775/CSEEJPES.2024.00970
  中图分类号：
- 纸质出版：2026
- 稿件说明：
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Jican Lin, Shenquan Liu, Gang Wang. Performance Improvement of VSG Dynamic Frequency Considering DC-Side Voltage Stability[J]. 中国电机工程学会电力与能源系统学报(英文), 2026,12(2):864-877.

Jican Lin, Shenquan Liu, Gang Wang. Performance Improvement of VSG Dynamic Frequency Considering DC-Side Voltage Stability[J]. CSEE Journal of Power and Energy Systems, 2026, 12(2): 864-877.
Jican Lin, Shenquan Liu, Gang Wang. Performance Improvement of VSG Dynamic Frequency Considering DC-Side Voltage Stability[J]. 中国电机工程学会电力与能源系统学报(英文), 2026,12(2):864-877. DOI： 10.17775/CSEEJPES.2024.00970.

Jican Lin, Shenquan Liu, Gang Wang. Performance Improvement of VSG Dynamic Frequency Considering DC-Side Voltage Stability[J]. CSEE Journal of Power and Energy Systems, 2026, 12(2): 864-877. DOI： 10.17775/CSEEJPES.2024.00970.

摘要

Abstract

The Virtual Synchronous Generator (VSG) enhances the dynamic performance of voltage source converter (VSC) by emulating the characteristics of Synchronous Generators (SGs). When implemented within Multi-Terminal Direct Current (MTDC) systems

the VSG plays a crucial role in regulating DC voltage. In such applications

it is imperative for the VSG to precisely follow the power references set by external DC voltage control loops. However

a tradeoff is identified in current VSG implementations with fixed inertia control: a conflict between rapid reference tracking and high virtual inertia

resulting in a compromise between the transient response of active power and angular frequency. Furthermore

VSGs equipped with DC voltage cascade control exhibit a conflicting relationship between voltage droop coefficients and damping coefficients. Given these complexities

this paper analyzes the impact of VSG control parameters on power

angular frequency

and DC-side voltage stability. Subsequently

a comprehensive parameter adaptive method is proposed

encompassing inertia

damping

and droop parameters. The objective is to provide a swift power response and stable frequency support while maintaining a balance between power regulation and frequency regulation across diverse operational conditions.

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