Analysis on Interactive Influences Between Voltage Source Inverter and SVC in an Islanded Micro-grid

YANG Honggeng; ZHAO Xi; WANG Di; MA Xiaoyang

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Analysis on Interactive Influences Between Voltage Source Inverter and SVC in an Islanded Micro-grid

更新时间：2025-12-08

- Analysis on Interactive Influences Between Voltage Source Inverter and SVC in an Islanded Micro-grid
- Vol. 43, Issue 10, Pages: 3273-3279(2017)
- 作者机构：
  
  四川大学电气信息学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：30 October 2017，
  
  Published：2017
- 稿件说明：
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YANG Honggeng, ZHAO Xi, WANG Di, et al. Analysis on Interactive Influences Between Voltage Source Inverter and SVC in an Islanded Micro-grid[J]. 2017, 43(10): 3273-3279.
DOI：

YANG Honggeng, ZHAO Xi, WANG Di, et al. Analysis on Interactive Influences Between Voltage Source Inverter and SVC in an Islanded Micro-grid[J]. 2017, 43(10): 3273-3279. DOI：

摘要

静止无功补偿器（SVC）和微电源中电压源型逆变器的交互作用可能会影响孤岛微电网的稳定性。为此

以中低压孤岛微电网为研究对象

建立了SVC和电压源型逆变器的输出阻抗模型

研究SVC和电压源型逆变器间交互作用的机理。基于奈奎斯特稳定判据分析表明

能单独稳定运行的SVC和电压源型逆变器在并联运行情况下可能导致系统出现不稳定。通过在SVC电压调节器中加入超前-滞后补偿环节

提出了改善SVC和电压源型逆变器之间的交互影响的控制策略

在Matlab/Simulink仿真平台上搭建了电压源型逆变器和SVC并联运行模型

仿真结果表明在SVC调节器中加入超前-滞后补偿环节可以提高系统的稳定裕度。

Abstract

The interaction between voltage-source inverter and static var compensator（SVC） may cause instability in an islanded micro-grid.In order to solve these problems

taking a low-voltage micro-grid for example

we established output impedance models of SVC and voltage-source inverter

and studied the interaction mechanism between SVC and voltage-source inverter.The results of Nyquist stability criterion and admittance ratio analysis show that stabilization of single SVC or voltage-source inverter is not sufficient for the whole system.A lead-lag compensator which is beneficial to improving the interaction between the SVC and the voltage source inverter is added to the SVC voltage regulator.The voltage source inverter and SVC parallel operation model are built on the MATLAB/Simulink simulation platform.The simulation results show that the addition of lead-lag compensator link in the SVC regulator can improve the stability margin of the system.

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