Novel Power Distribution and Voltage Regulation Control Strategy for Islanded Microgrid

LIU Li; XU Qingqing

doi:10.14044/j.1674-1757.pcrpc.2018.02.025

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Novel Power Distribution and Voltage Regulation Control Strategy for Islanded Microgrid

更新时间：2024-09-14

- Novel Power Distribution and Voltage Regulation Control Strategy for Islanded Microgrid
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 39, Issue 2, Pages: 131-136(2018)
- 作者机构：
  
  宿迁学院机电工程学院
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2018.02.025
  CLC： TM714.2
- Published：2018，
- 稿件说明：
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[1]刘莉,徐青青.孤岛微电网的新型功率分配与电压调整控制策略[J].电力电容器与无功补偿,2018,39(02):131-136.

LIU LI, XU QINGQING. Novel Power Distribution and Voltage Regulation Control Strategy for Islanded Microgrid. [J]. Power capacitor & reactive power compensation, 2018, 39(2): 131-136.
[1]刘莉,徐青青.孤岛微电网的新型功率分配与电压调整控制策略[J].电力电容器与无功补偿,2018,39(02):131-136. DOI： 10.14044/j.1674-1757.pcrpc.2018.02.025.

LIU LI, XU QINGQING. Novel Power Distribution and Voltage Regulation Control Strategy for Islanded Microgrid. [J]. Power capacitor & reactive power compensation, 2018, 39(2): 131-136. DOI： 10.14044/j.1674-1757.pcrpc.2018.02.025.

摘要

传统下垂控制难以保证孤岛微电网中并联微源的功率分配精度

同时存在母线电压跌落的问题

供电电压质量较低

针对上述问题

提出一种基于一致性算法的分布式控制方法。相邻微源间进行低带宽通信

每台微源利用其本地信息及获取的其他微源的信息

结合离散一致性算法对系统平均电压进行迭代估计

并在P-V控制环中增加PI控制器

利用系统平均电压这一公共量实现了有功功率的合理分配

并提高了系统电压质量

实现了电压的调整。针对含有4台微源的孤岛微电网系统

利用Matlab/Simulink搭建了仿真模型

对传统下垂控制与所提控制策略进行了仿真与对比分析

仿真结果验证了所提控制策略在功率分配与电压调整方面的优越性。

Abstract

Traditional droop control is difficult to guarantee the power distribution accuracy of parallel micro sources in islanded microgrid and

at the same time

such problem as busbar voltage drop and low supply voltage quality are existed. As for the above problem

a kind of distributed control method based on consensus algorithm is proposed. Low bandwidth communication is implemented between adjacent micro sources. The average voltage of the system is interactively calculated with the local information from each micro sources itself and other micro source information with combination of discrete consistency

the PI controller is added in the P-V control loop and the average voltage of the system is used to achieve the reasonable distribution of active power

improve the quality of system voltage and achieve voltage regulation. As for the islanded microgrid system with four sets of micro sources

the simulation model is set up by Matlab/Simulink so to simulate

compare and analyze. The superiority of the proposed control strategy in power distribution and voltage adjustment is verified by the simulation result.

关键词

微电网孤岛模式下垂控制功率分配电压调整一致性算法系统平均电压

Keywords

microgridislanded modedroop controlpower distributionvoltage regulationconsensus algorithmsystem average voltage

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