微网逆变器的VSG转动惯量和阻尼系数自适应控制

WEN Chunxue

您当前的位置：

首页 >

文章列表页 >

微网逆变器的VSG转动惯量和阻尼系数自适应控制

更新时间：2025-08-13

- 微网逆变器的VSG转动惯量和阻尼系数自适应控制
- Automation of Electric Power Systems Vol. 42, Issue 17, Pages: 120-126(2018)
- 作者机构：
  
  北京市电力电子与电气传动工程研究中心(北方工业大学),北京市,100144
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2018
- 稿件说明：
移动端阅览
WEN Chunxue. [J]. Automation of electric power systems, 2018, 42(17): 120-126.
DOI：

WEN Chunxue. [J]. Automation of electric power systems, 2018, 42(17): 120-126. DOI：

摘要

近年来随着微网及分布式发电的快速发展，适用于微网并离网运行的虚拟同步发电机(VSG)控制技术被提出。VSG在下垂控制的基础上进一步模拟了同步发电机的转动惯量和阻尼系数。和下垂控制相比，VSG的响应特性得到了进一步的提高，但无法同时保证频率和功率的动态调节性能。针对该问题，对VSG离网工况下的输出频率和并网工况下的输出功率进行了自适应控制。首先，做出不同转动惯量和阻尼系数下的有功环根轨迹，并结合VSG转子机械方程分析转动惯量和阻尼系数对系统的影响，通过建立转动惯量和阻尼系数的自适应函数关系来对VSG实现自适应控制。最后在MATLAB/Simulink中搭建容量为20 kVA的VSG自适应控制模型，并搭建了20 kVA容量的VSG实验平台，仿真和实验结果验证了所提控制策略的有效性和正确性。

Abstract

In recent years

with the rapid development of microgrid and distributed generation technology

the virtual synchronous generator(VSG)has been proposed which is adaptive to microgrid interface converter for low inertia and small damping. Based on the droop control

VSG further simulates the rotational inertia and damping coefficient of synchronous generator. Compared to the droop control

the response of VSG has been further improved

but the dynamic adjustment performance of frequency and power cannot be guaranteed in the same time. Aiming at this problem

the output frequency of island condition and output power of grid condition are controlled by self-adaptive control. Firstly

the root locus of active power is made under different rotational inertia and damping coefficient

combining with the rotor mechanical equation

the effects of the inertia and damping coefficient on the system are analyzed. Secondly

in order to realize the self-adaptive control of VSG

the self-adaptive equation of the inertia and damping coefficient are established. Finally

self-adaptive control model of VSG whose capacity is 20 kW in MALAB/Simulink and VSG experimental platform are built. The simulation and experimental results verify the efficiency and accuracy of proposed control strategy.

关键词

Keywords

references

Views

2308

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

基于递推最小二乘法的虚拟同步发电机参数辨识方法

基于微分补偿环节虚拟惯性的虚拟同步发电机控制策略

基于虚拟同步发电机的微网运行模式无缝切换控制策略

Adaptive Adjustment Method for Grid-forming Energy Storage Parameters Based on Buffer Functions and Damping Switching

Self-adaptive Control Method for Electric Heating Equipment Based on Shared Media Contention Access Mechanism

Related Author

LUO Qinqin

XU Haizhen

SHI Rongliang

CUI Yang

MA Boyu

DAI Hanyang

ZHAO Yuting

MA Xin

Related Institution

Research Center for Photovoltaic System Engineering of Ministry of Education (Hefei University of Technology)

School of Electrical Engineering and Automation, Hefei University of Technology

Electric Power Research Institute of State Grid Ningxia Electric Power Co., Ltd.

China Electric Power Research Institute

Key Laboratory of Modern Power System Simulation and Control & Renewable Energy Technology, Ministry of Education (Northeast Electric Power University)

⁰