基于虚拟直流电容的并网变换器虚拟同步发电机控制策略

刘潇奎; 段善旭; 何汰航; 白晨曦; 陈昌松

doi:10.13336/j.1003-6520.hve.20242020

您当前的位置：

首页 >

文章列表页 >

基于虚拟直流电容的并网变换器虚拟同步发电机控制策略

更新时间：2026-02-25

- 基于虚拟直流电容的并网变换器虚拟同步发电机控制策略
- Vol. 51, Issue 12, Pages: 6063-6072(2025)
- 作者机构：
  
  华中科技大学强电磁技术全国重点实验室,武汉,430074
- 作者简介：
- 基金信息：
- DOI：10.13336/j.1003-6520.hve.20242020
  CLC：
- Published：2025
- 稿件说明：
移动端阅览
刘潇奎, 段善旭, 何汰航, et al. 基于虚拟直流电容的并网变换器虚拟同步发电机控制策略[J]. 2025, 51(12): 6063-6072.
DOI：

刘潇奎, 段善旭, 何汰航, et al. 基于虚拟直流电容的并网变换器虚拟同步发电机控制策略[J]. 2025, 51(12): 6063-6072. DOI： 10.13336/j.1003-6520.hve.20242020.

摘要

随着可再生能源渗透率的不断提高，直流微电网(DC microgrids，DCMG)与交流电网连接的并网变换器(grid-connected converter，GCC)需要具备构网能力。然而，现有的虚拟同步发电机(virtual synchronous generator，VSG)控制缺乏与直流侧的协调，这可能会导致可再生能源利用率降低或直流电压崩溃。该文分析了直流惯量与交流惯量之间的定量关系，针对直流电容惯量有限的问题，提出了一种基于虚拟直流电容的VSG控制策略，能够使DCMG为交流电网提供相当于传统同步发电机惯性时间常数的虚拟惯量。所提出的VSG控制策略还能够有效协调直流电压控制，仿真与实验结果验证了所提控制策略的功能和有效性。

Abstract

As the penetration rate of renewable energy increases

the grid-connected converters (GCCs) need to have grid-forming capabilities. However

existing virtual synchronous generator (VSG) control lacks the interaction with dc-side units

which may lead to reduction inrenewable energy utilization efficiency or dc-link voltage collapse. This paper quantitatively analyzes the relationship between DC inertia and AC inertia. To solve the problem of limited inertia of dc-link capacitor

a VSG control strategy based on virtual DC capacitor is proposed

which enables the DCMG to provide virtual inertia equivalent to the inertia time constant of traditional synchronous generator for the AC grid. The proposed VSG control strategy can also effectively coordinate the dc-link voltage control. Simulation and experimental results validate the functionality and effectiveness of the proposed control strategy.

关键词

Keywords

references

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

基于VSG暂态阻尼优化的MMC并网功率控制

考虑主轴疲劳载荷的虚拟同步双馈风电场分布式频率响应策略

Frequency and Voltage Regulation Control Strategy of Micro-grid with Multiple Micro Sources Under Island Mode

Stability Analysis on DC-link Voltage of Wind Turbine Grid-connected Converter as Integrated to Weak Grid

Hierarchical Frequency Control Strategy of Microgrids with Virtual Synchronous Generators

Related Author

李珂

杨屹立

石进辉

陈杨

宋青娅

夏岩

WANG Yingwei

WANG Liming

Related Institution

四川省氢能源与多能互补微电网工程技术研究中心

兴储世纪科技有限公司

四川轻化工大学自动化与信息工程学院

School of Electrical Engineering and Automation, Harbin Institute of Technology

School of Electrical Engineering, Shenyang University of Technology

AI问答

⁰