改进负荷分配的孤岛微网下垂控制方法

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改进负荷分配的孤岛微网下垂控制方法

更新时间：2025-08-13

- 改进负荷分配的孤岛微网下垂控制方法
- Automation of Electric Power Systems Vol. 39, Issue 15, Pages: 24-29(2015)
- 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：2015
- 稿件说明：
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DU Yan. [J]. Automation of electric power systems, 2015, 39(15): 24-29.
DOI：

DU Yan. [J]. Automation of electric power systems, 2015, 39(15): 24-29. DOI：

摘要

微网的阻抗特性复杂

下垂控制对线路阻抗匹配度要求严格

严重影响了负荷分配的精确度。以多台微网逆变器(MGI)按容量比分配负荷为例

分析了实现负荷准确分配的输出阻抗和连接线阻抗匹配条件。提出了一种含开环补偿项和动、静态变系数下垂的新型下垂控制方法

提高了MGI在四象限中的动、静态负荷分配的准确度。仿真和实验验证了所提出的控制策略和参数设计方法的可行性和有效性。

Abstract

The deteriorated effects on proportional load distribution are caused by mismatch of the output impedance and the feeder impedance in the conventional droop-control of multi-microgrid inverters (MGIs). The matching condition between output impedance and feeder impedance are revealed in the condition of sharing the load in proportional to their power rating among multi-paralleled inverters. A novel droop controller with adaptive droop coefficients and voltage drop compensations is proposed to share the load accurately in both dynamic and steady state. Additional

the design procedure of the parameters in this proposed controller are provided as well. The simulation and experiment are provided to validate its feasibility and validity. This work is supported by National Natural Science Foundation of China (No. 51407057

No. 51307042) and Anhui Provincial Natural Science Foundation of China (No. 413286).

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