Control Strategy of Virtual Synchronous Generator Based on Self-adaptive Damping Control Algorithm

GAO Feiling; QIAN Kai; LI Minmin; JIANG Yuanyuan; LI Tianyang; WEN Buying

doi:10.14044/j.1674-1757.pcrpc.2021.05.018

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Control Strategy of Virtual Synchronous Generator Based on Self-adaptive Damping Control Algorithm

更新时间：2024-09-14

- Control Strategy of Virtual Synchronous Generator Based on Self-adaptive Damping Control Algorithm
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 42, Issue 5, Pages: 109-114(2021)
- 作者机构：
  
  1. 宁波市电力设计院有限公司
  2. 福州大学电气工程与自动化学院
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2021.05.018
  CLC： TM341;TM464
- Published：2021，
- 稿件说明：
移动端阅览
GAO FEILING, QIAN KAI, LI MINMIN, et al. Control Strategy of Virtual Synchronous Generator Based on Self-adaptive Damping Control Algorithm. [J]. Power capacitor & reactive power compensation, 2021, 42(5): 109-114.
DOI：

GAO FEILING, QIAN KAI, LI MINMIN, et al. Control Strategy of Virtual Synchronous Generator Based on Self-adaptive Damping Control Algorithm. [J]. Power capacitor & reactive power compensation, 2021, 42(5): 109-114. DOI： 10.14044/j.1674-1757.pcrpc.2021.05.018.

摘要

常规的并网逆变器作为分布式电源和电网的接口

无法为电网提供惯量支撑

基于并网逆变器的虚拟同步发电机(VSG)控制策略可以增强系统频率和电压的稳定性。为了使频率响应拥有更小的超调量和更短的调节时间

本文根据动态过程中阻尼和频率最大偏差量的关系

提出了一种基于自适应阻尼算法的虚拟同步发电机控制策略

同时也能在一定程度上改善输出电压的动态特性。基于小信号数学模型

根据系统的响应指标要求

确定了阻尼系数的取值范围。最后

利用Matlab/Simulink进行仿真实验

与各种阻尼控制算法进行对比

验证了所提控制策略的有效性。

Abstract

The conventional grid-connected inverters

as the interface between distributed power supply and power grid

can not provide inertia support for the power grid. The control strategy of virtual synchronous generator（VSG）based on grid-connected inverters can enhance stability of system frequency and voltage. In order to make the frequency response have smaller overshoot and shorter adjustment time

according to the relationship between the damping and the maximum frequency deviation

the adaptive damping control strategy for VSG microgrid is proposed

which can also improve the dynamic characteristics of the output voltage. The range of damping coefficient is determined on the basis of small signal mathematical model and in accordance with response index requirement of the system. Finally

simulation experiments are carried out with Matlab/Simulink and the effectiveness of the proposed control strategy is verified by comparing with various damping control algorithms.

关键词

虚拟同步发电机稳定性阻尼自适应控制

Keywords

virtual synchronous generatorstabilitydampingself-adaptive control

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