Voltage Balance Control Strategy of Islanded Microgrid Based on Combined Three-Phase Inverter

LU Shaoqun; TIAN Yongjun; Zhong Kunyan

doi:10.14044/j.1674-1757.pcrpc.2021.02.027

您当前的位置：

首页 >

文章列表页 >

Voltage Balance Control Strategy of Islanded Microgrid Based on Combined Three-Phase Inverter

更新时间：2024-09-14

- Voltage Balance Control Strategy of Islanded Microgrid Based on Combined Three-Phase Inverter
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 42, Issue 2, Pages: 168-175(2021)
- 作者机构：
  
  1. 光伏发电系统控制与优化湖南省工程实验室
  2. 湖南理工职业技术学院
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2021.02.027
  CLC： TM73;TM464
- Published：2021，
- 稿件说明：
移动端阅览
[1]卢绍群,田拥军,钟坤炎.基于组合三相逆变器的孤岛微电网电压平衡控制策略[J].电力电容器与无功补偿,2021,42(02):168-175.

LU SHAOQUN, TIAN YONGJUN, ZHONG KUNYAN. Voltage Balance Control Strategy of Islanded Microgrid Based on Combined Three-Phase Inverter. [J]. Power capacitor & reactive power compensation, 2021, 42(2): 168-175.
[1]卢绍群,田拥军,钟坤炎.基于组合三相逆变器的孤岛微电网电压平衡控制策略[J].电力电容器与无功补偿,2021,42(02):168-175. DOI： 10.14044/j.1674-1757.pcrpc.2021.02.027.

LU SHAOQUN, TIAN YONGJUN, ZHONG KUNYAN. Voltage Balance Control Strategy of Islanded Microgrid Based on Combined Three-Phase Inverter. [J]. Power capacitor & reactive power compensation, 2021, 42(2): 168-175. DOI： 10.14044/j.1674-1757.pcrpc.2021.02.027.

摘要

针对微电网孤岛运行时

微电网三相功率不平衡以及输出阻抗不同

导致三相电压不平衡的问题

本文提出了基于组合三相逆变器的孤岛微电网电压平衡控制策略。一方面

以组合式三相逆变器作为分布式电源的接口电路

从而实现对各桥的独立控制;另一方面

通过调整P～f和Q～U下垂曲线对传统下垂控制进行改进

得到三相平衡参考电压。此外

本文通过引进阻抗压降补偿控制

进一步改善输出阻抗不同引起的电压不对称问题。最后

在负载平衡和不平衡的情况下分别进行模拟与实验

结果表明本文所提电压综合控制策略的可行性及有效性。

Abstract

In view of the issue of three-phase voltage imbalance due to imbalance of three phase power and different output impedance during the operation of islanded microgrid

the voltage balance control strategy of islanded microgrid based on combined three-phase inverter is proposed in this paper. On one hand

the combined three-phase inverter is used as the interface circuit of the distributed power supply so to achieve the independent control of each bridge. On the other hand

the traditional droop control is improved by adjusting the P～F and Q～U droop curves to obtain three-phase balance reference voltage. In addition

the issue of voltage asymmetry due to different output impedance is improved further by way of introducing impedance voltage drop compensation control in this paper. Finally

the simulation and experiment are carried out at load balance and unbalance conditions respectively. It is shown by the result that the proposed integrated voltage control strategy is feasible and effective.

关键词

不平衡负载电压对称性下垂控制阻抗压降补偿组合式三相逆变器

Keywords

unbalanced loadsvoltage symmetrydroop controlimpedance voltage drop compensationcombined three-phase inverter

references

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Parallel Control Strategy of Multiple Inverters Based on Improved Droop

Novel Power Distribution and Voltage Regulation Control Strategy for Islanded Microgrid

Study on Microgrid Power Allocation Strategy Based on Virtual Impedance

Active Power Standby Photovoltaic System Based on Improved Droop Control Strategy

Research on Parallel Control Strategy of Inverter Based on Virtual Impedance

Related Author

SU Shiping

NI Liang

LI Zhixuan

SU Qiankun

LOU Junjie

XU Qingqing

LIU Li

WEI Chengwei

Related Institution

School of electrical and information engineering, Changsha University of technology

School of Mechanical and Electrical Engineering,Suqian College

College of Control Engineering,Xinjiang Institute of Engineering

Nanchong Electric Power Company,State Grid Sichuan Electric Power Company

Electric Power Research Institute,State Grid Jiangxi Electric Power Co.,Ltd.

⁰