Influence Analysis of the Main Control Parameters in FVSG on the Frequency Stability of the System

ZOU Peigen; MENG Jianhui; WANG Yi; LEI Xi

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Influence Analysis of the Main Control Parameters in FVSG on the Frequency Stability of the System

更新时间：2025-12-08

- Influence Analysis of the Main Control Parameters in FVSG on the Frequency Stability of the System
- Vol. 44, Issue 4, Pages: 1335-1342(2018)
- 作者机构：
  
  1. 华北电力大学新能源电力系统国家重点实验室
  2. 全球能源互联网研究院先进输电技术国家重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：10 May 2018，
  
  Published：2018
- 稿件说明：
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ZOU Peigen, MENG Jianhui, WANG Yi, et al. Influence Analysis of the Main Control Parameters in FVSG on the Frequency Stability of the System[J]. 2018, 44(4): 1335-1342.
DOI：

ZOU Peigen, MENG Jianhui, WANG Yi, et al. Influence Analysis of the Main Control Parameters in FVSG on the Frequency Stability of the System[J]. 2018, 44(4): 1335-1342. DOI：

摘要

基于虚拟同步机（VSG）控制的换流器可以模拟出同步发电机的惯性

虚拟惯量可在一定范围内灵活调整是其区别于传统同步发电机的重要优势。然而

灵活虚拟同步机（FVSG）控制参数的变化会对系统频率稳定性造成严重影响

探究主要控制参数对系统频率稳定性的影响规律对其大小选择具有重要意义。首先给出了固定惯性时间常数下的虚拟同步机控制策略

构建了VSG的控制框架;其次

研究了3种典型的FVSG控制方法

并对其进行了对比分析;最后

针对基于指数惯量的灵活虚拟同步发电机控制技术

通过构建小信号模型、灵敏度计算及根轨迹分析的方法

揭示了主要控制参数对系统频率稳定性的影响规律

为控制参数的选择提供了依据。

Abstract

The converter based on virtual synchronous generator（VSG） control can simulate the inertia of synchronous generator.Virtual inertia can be adjusted within a certain range

which is a significant advantage compared with traditional synchronous generator.However

the changes of the control parameters of the flexible virtual synchronous generator（FVSG） will seriously affect the frequency stability of the system.It is very important for parameter selection to explore the influence of the main control parameters on the frequency stability of the system.Firstly

the VSG control strategy with fixed inertial time constant is shown and the control frame of VSG is constructed.Then

three typical FVSG control methods are studied and compared.Finally

in accordance with the FVSG control technology based on exponential inertia

the influence law of the main control parameters on the frequency stability of the system is revealed by constructing the small-signal model

the sensitivity calculation

and the root locus analysis

which provides the basis for the selection of the control parameters.

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Related Institution

China Electric Power Research Institute

School of Electrical Engineering, Wuhan University

State Key Laboratory of Control and Simulation of Power System and Generation Equipment, Department of Electrical Engineering, Tsinghua University

Henan High Voltage Apparatus Research Institute

State Grid Shaanxi Electric Power Research Institute

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