虚拟同步发电机并联运行的阻抗匹配策略

ZHANG Hui

您当前的位置：

首页 >

文章列表页 >

虚拟同步发电机并联运行的阻抗匹配策略

更新时间：2025-08-13

- 虚拟同步发电机并联运行的阻抗匹配策略
- Automation of Electric Power Systems Vol. 42, Issue 9, Pages: 69-74(2018)
- 作者机构：
  
  西安理工大学自动化与信息工程学院,陕西省,西安市,710048
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2018
- 稿件说明：
移动端阅览
ZHANG Hui. [J]. Automation of electric power systems, 2018, 42(9): 69-74.
DOI：

ZHANG Hui. [J]. Automation of electric power systems, 2018, 42(9): 69-74. DOI：

摘要

在逆变器中加入转动惯量和阻尼，实现虚拟同步发电机(VSG)控制，可在兼顾本地负载平滑切换的同时提高交流母线频率稳定性。VSG并联按其容量配比对负载进行合理分配，但阻抗不同会对并联造成稳态误差，同样会影响动态性能。提出一种基于虚拟阻抗的并联VSG控制方法，对励磁环节进行改进，实现对交流母线电压的控制，分析有功功率和无功功率运行特性；加入虚拟阻抗并得出阻抗匹配原则，分析虚拟阻抗在暂态过程中的效果。在MATLAB/Simulink中和实验台架上进行了两台VSG并联仿真和实验，结果表明，提出的控制策略可以抑制投切过程中的频率波动，提高VSG并联的稳定性。

Abstract

The virtual synchronous generator(VSG)control can be realized by adding inertia and damping in the inverter

which can improve the stability of the AC bus frequency while considering the smooth switching of the local load. The load of parallel VSG can be distributed reasonably according to its capacity ratio

but the different impedances will cause steady-state error of parallel system

and also affect its dynamic performance. To solve this problem

a parallel VSG control method based on virtual impedance is proposed. Firstly

the improved excitation is proposed which can control the AC bus voltage

and operation characteristics of active power and reactive power are analyzed. Secondly

the impedance matching principle is obtained while adding the virtual impedance

and the effect of virtual impedance in transient process is analyzed. Finally

the proposed control strategy is verified in the environment of MATLAB/Simulink and the experimental platform. The results show that the proposed strategy can inhibit the frequency fluctuation in cutting process and improve the stability of VSG parallel system.

关键词

Keywords

references

Views

4199

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

基于定子虚拟阻抗的双馈风电机组虚拟同步控制策略

Deep Reinforcement Learning Method for Frequency Regulation of Wind-Solar-Hydro-Thermal-Storage Systems Based on Virtual Synchronous Generator

Transient Synchronization Stability Analysis of Multi-virtual-synchronous-generator System Considering Controller Limiting

Complex Torque Coefficient Based Analysis and Suppression Strategy of Low-frequency Oscillation in Grid-forming Converter Without Inner-loop

Related Author

XIE Zhen

LIU Xiaoming

LIU Jun

YAO Hongwei

ZHAO Yu

NIE Yongxin

REN Kezheng

LIU Xiaoming

Related Institution

School of Electrical Engineering and Automation, Hefei University of Technology

Shaanxi Key Laboratory of Smart Grid (Xi’an Jiaotong University)

Shaanxi Key Laboratory of Smart Grid (Xi'an Jiaotong University)

NARI Technology Development Co., Ltd.

School of Electrical Engineering, Xi'an Jiaotong University

⁰