基于虚拟电容的微网逆变器无功均分控制策略

XU Haizhen

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基于虚拟电容的微网逆变器无功均分控制策略

更新时间：2025-08-13

- 基于虚拟电容的微网逆变器无功均分控制策略
- Automation of Electric Power Systems Vol. 40, Issue 19, Pages: 59-65(2016)
- 作者机构：
  
  合肥工业大学电气与自动化工程学院,安徽省,合肥市,230009
- 作者简介：
- 基金信息：
- DOI：
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- Published：2016
- 稿件说明：
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XU Haizhen. [J]. Automation of electric power systems, 2016, 40(19): 59-65.
DOI：

XU Haizhen. [J]. Automation of electric power systems, 2016, 40(19): 59-65. DOI：

摘要

在采用下垂控制的多逆变器微网系统中

针对线路阻抗差异所导致逆变器无功功率不均分问题

提出了基于虚拟电容的无功均分控制策略。该控制策略通过算法模拟逆变器输出端的并联电容特性

并根据线路阻抗差异自适应补偿线路阻抗压降

减小基频环流

提高系统无功均分能力。所提控制策略无需改变下垂特性

且无需检测公共点电压和线路阻抗参数

简化并改进了微网逆变器的无功均分控制。仿真和实验验证了所提方案的有效性。

Abstract

Aiming at reactive power sharing problem due to line impedance voltage mismatch in multi-inverters paralleled microgrid system with conventional droop control method

a power sharing strategy of virtual capacitor is proposed. The method adopts an algorithm to mimic inverter output paralleled capacitor characteristic

and adaptively compensates the line impedance voltage drop to reduce circulating current and improves the power sharing ability. Droop coefficients changes and detection of point of common coupling(PCC)voltage are not needed in the method

which enhances the adaptability of the inverters. Simulation and experimental results verify the effectiveness of the proposed control strategy. This work is supported by National High Technology Research and Development Program of China(863 Program)(No. 2015AA050607).

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微网系统不平衡电压补偿控制策略

考虑逆变型分布式电源时滞的孤岛微网小信号稳定分析

稀疏通信下分布式电源微增率一致性加速算法

采用功率坐标变换的微网并联逆变器控制方法

微网系统运行模式平滑切换控制策略

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