可改善微网孤岛模式下负荷分配的改进下垂控制

林焱; 吴丹岳; 刘建华

林焱,吴丹岳,刘建华.可改善微网孤岛模式下负荷分配的改进下垂控制[J].电测与仪表,2015,52(14):.
LIN yan,WU Dan-yue,LIU Jian-hua.An Improved Droop Control for Improving Load Distribution in an Autonomous Microgrid[J].Electrical Measurement & Instrumentation,2015,52(14):.

可改善微网孤岛模式下负荷分配的改进下垂控制

An Improved Droop Control for Improving Load Distribution in an Autonomous Microgrid

DOI：

中文关键词: 微网孤岛模式下垂控制负荷分配下垂增益

英文关键词:microgrid, islanded mode, droop control, load distribution, droop gain

基金项目:

作者中文名	作者英文名	单位
林焱	LIN yan	国网福建省电力有限公司电力科学研究院
吴丹岳	WU Dan-yue	国网福建省电力有限公司电力科学研究院
刘建华	LIU Jian-hua	四川大学电气信息学院

摘要点击次数: 1931

中文摘要:

针对传统下垂控制难以保证微网孤岛模式下负荷分配准确的问题,通过对功率分配特性的深入分析,得到了额定功率和线路阻抗不匹配是造成分配不准确的根本原因,在此基础上提出了一种依靠静态修正下垂增益来改善功率分配特性的方法。该方法不会改变传统下垂控制方程的形式,对系统动态特性和稳定性无显著影响,对微网运行电压的影响也较小。在Matlab/Simulink仿真平台上验证了所提改进方法的有效性。

英文摘要:

The conventional droop control is difficult to guarantee the load power distribution accurately in the islanded mode microgrid, through in-depth analysis of the power distribution characteristics, the conclusion that the mismatch of rated power and line impedance is the root cause of inaccurate distribution is got, an improved method depend on static correct the droop gain to improve power distribution characteristics is proposed on this basis. This method does not change the equation form of the conventional droop control, and has no significant effect on the system dynamic performance and stability, the impact on the operating voltage is also lesser. The effectiveness of the improved method is verified on the Matlab/Simulink simulation platform.

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