Study on the Control Strategy of Grid-connected Inverter Based on Complex Control

QIU Lin; XIA Wei; KANG Jinsong

doi:10.14044/j.1674-1757.pcrpc.2017.06.030

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Study on the Control Strategy of Grid-connected Inverter Based on Complex Control

更新时间：2024-09-14

- Study on the Control Strategy of Grid-connected Inverter Based on Complex Control
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 38, Issue 6, Pages: 158-163(2017)
- 作者机构：
  
  同济大学电子与信息工程学院
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2017.06.030
  CLC： TM464
- Published：2017，
- 稿件说明：
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[1]邱林,夏伟,康劲松.基于复合控制的并网逆变器控制策略研究[J].电力电容器与无功补偿,2017,38(06):158-163.

QIU LIN, XIA WEI, KANG JINSONG. Study on the Control Strategy of Grid-connected Inverter Based on Complex Control. [J]. Power capacitor & reactive power compensation, 2017, 38(6): 158-163.
[1]邱林,夏伟,康劲松.基于复合控制的并网逆变器控制策略研究[J].电力电容器与无功补偿,2017,38(06):158-163. DOI： 10.14044/j.1674-1757.pcrpc.2017.06.030.

QIU LIN, XIA WEI, KANG JINSONG. Study on the Control Strategy of Grid-connected Inverter Based on Complex Control. [J]. Power capacitor & reactive power compensation, 2017, 38(6): 158-163. DOI： 10.14044/j.1674-1757.pcrpc.2017.06.030.

摘要

在讨论三相并网逆变器传统控制策略局限性的基础上

对并网逆变器采用串并联结构PI+改进型重复控制策略的可行性进行分析

分别在系统稳定性以及补偿器的设计方法等方面作了较为详细的分析和推导

并提出具有统一结构的简化的补偿器设计方法—等效控制对象方法。对比分析了串并联结构的PI+改进型重复控制策略的优缺点及应用场合。最后通过1台20 kVA的并网逆变器样机

在电网电压存在畸变的条件下进行实验

对理论分析及提出的补偿器设计方法进行验证。

Abstract

Considering the limitations of the traditional control strategy for three-phase grid-connected inverter

a novel compound control strategy that combines the PI+ and modified repetitive control strategy together is proposed in this paper.First

the feasibility of this method is discussed and proven to be feasible.Then

detailed analysis and derivation are made in the field of system stability and the design method of compensator and the design method for simplifying the compensator with uniform structure

namely

equivalent control object method

is proposed.The advantage and disadvantage and application of the PI+ modified repetitive control strategy with serial and parallel structure is compared and analyzed.Finally

an experiment with a 20 kVA grid-connected inverter prototype at the distorted grid voltage is conducted and both the theoretical analysis and the design scheme of the proposed compensator are verified.

关键词

PI+改进型重复控制并网逆变器等效控制对象方法复合控制器

Keywords

PI + modified repetitive controlgrid-connected inverterequivalent control objectcomplex control

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