Frequency H2/H∞ optimal control for isolated wind-diesel hybrid micro-grid

被引：0

作者：

Wu Z.-Q. ^{[1
]}

Zhao X.-B. ^{[1
]}

Wang X.-Y. ^{[1
]}

机构：

[1] Key Lab of Industrial Computer Control Engineering of Hebei Province, Yanshan University, Qinhuangdao

来源：

Dianji yu Kongzhi Xuebao/Electric Machines and Control | 2017年 / 21卷 / 09期

关键词：

Frequency; H[!sub]2[!/sub]/H[!sub]∞[!/sub] control; Micro-grid; Wind power;

D O I：

10.15938/j.emc.2017.09.013

中图分类号：

学科分类号：

摘要：

Affected by change of wind and load, large frequency fluctuation will occur in independent islands wind-diesel complementary micro-grid. In order to ensure the normal operation of the micro-grid, an H2/H∞ controller was designed to adjust the active power of diesel generators, and the power variation caused by wind and load was balanced, so the frequency control of micro-grid was achieved. H2/H∞ controller combined the advantages of two kinds of performance index. H2 performance index was adopted to get good dynamic performance, and H∞ performance index was adopted to improve the ability of system to suppress random disturbance. So the system had strong robustness for the random disturbance such as wind power and load, and good dynamic performance had got. Simulation results show that after an H2/H∞ controller being added, the frequency change of micro-grid can be controlled within the range required, the frequency fluctuations was avoided caused by the interaction of wind and load, and the safety and stable operation of the micro-grid was protected. © 2017, Harbin University of Science and Technology Publication. All right reserved.

引用

页码：96 / 102

页数：6

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