Application of PLL based on second-order generalized integral in three-phase VSG

QIU Bin; WANG Xuewei; WANG Kai

doi:10.13873/J.1000-9787(2020)09-0157-04

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Application of PLL based on second-order generalized integral in three-phase VSG

更新时间：2025-09-11

- Application of PLL based on second-order generalized integral in three-phase VSG
- Vol. 39, Issue 9, Pages: 157-160(2020)
- 作者机构：
  
  1. 辽宁工程技术大学电气与控制工程学院
  2. 国网葫芦岛供电公司
- 作者简介：
- 基金信息：
- DOI：10.13873/J.1000-9787(2020)09-0157-04
  CLC： TM341;TM464
- Published：2020
- 稿件说明：
移动端阅览
[1]邱彬,王雪薇,王凯.基于二阶广义积分的锁相环在三相VSG中的应用[J].传感器与微系统,2020,39(09):157-160.

QIU Bin, WANG Xuewei, WANG Kai. Application of PLL based on second-order generalized integral in three-phase VSG[J]. 2020, 39(9): 157-160.
[1]邱彬,王雪薇,王凯.基于二阶广义积分的锁相环在三相VSG中的应用[J].传感器与微系统,2020,39(09):157-160. DOI： 10.13873/J.1000-9787(2020)09-0157-04.

QIU Bin, WANG Xuewei, WANG Kai. Application of PLL based on second-order generalized integral in three-phase VSG[J]. 2020, 39(9): 157-160. DOI： 10.13873/J.1000-9787(2020)09-0157-04.

摘要

锁相环（PLL）和虚拟同步发电机（VSG）技术是并网逆变器与电网保持同步的两种方法。针对传统锁相环在同步发电机系统中频率跟踪性能差、抗直流干扰能力低的问题

应用基于二阶广义积分（SOGI）的锁相环结构

建立三相VSG系统模型

将SOGI-PLL与VSG技术结合

搭建基于SOGI-PLL的三相VSG系统模型并进行仿真。仿真结果表明:SOGI-PLL可以通过锁相得到精确的电网相位信息

改善并网电流电压质量

降低谐波污染

能够有效提高三相VSG系统的稳定性。通过ModelingTech电力电子仿真实验系统验证所提出结构的准确性。

Abstract

Phase-locked loop（ PLL） and virtual synchronous generator are two methods for grid-connected inverter to keep synchronization with power grid. For traditional phase-locked loop frequency tracking performance is poor in synchronous generator system

the problem of low dc interference resistance

application based on the secondorder generalized integrator（ SOGI） phase-locked loop structure

three-phase VSG system model is established

combined SOGI-PLL and VSG technology

set up based on SOGI-three-phase VSG PLL system model and simulation

the simulation results show that SOGI-PLL can get accurate phase information of power grid by phase lock

improve grid current voltage quality

reduce the harmonic pollution

can effectively improve the stability of three-phase VSG system. Finally

the accuracy of the proposed structure is verified by ModelingTech power electronics simulation experiment system.

关键词

Keywords

references

微网中分布式电源锁相环建模及其稳定性分析 [J]. 王睿,孙秋野,马大中,王冰玉. 中国电机工程学报 . 2018(24)

基于光伏并网系统的单相SOGI-PLL技术研究 [J]. 王淑青,要若天,袁晓辉. 湖北工业大学学报 . 2018(04)

并网逆变器数字锁相环的数学物理本质分析 [J]. 曾正,邵伟华,刘清阳,马青,冉立. 电工技术学报 . 2018(04)

二阶广义积分器的三种改进结构及其锁相环应用对比分析 [J]. 张纯江,赵晓君,郭忠南,于安博. 电工技术学报 . 2017(22)

基于二阶广义积分单相锁相环的改进及实现 [J]. 祁新梅,沈海滨,余文海,郑寿森. 电力电子技术 . 2016(01)

虚拟同步发电机及其在微电网中的应用 [J]. 吕志鹏,盛万兴,钟庆昌,刘海涛,曾正,杨亮,刘岚. 中国电机工程学报 . 2014(16)

DSOGI-PLL算法在不平衡和畸变电网电压监测中的应用 [J]. 巩冰,王科俊,马晓伟. 传感器与微系统 . 2015(01)

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