H_∞ Robust Control of DC-AC Interfaced Microsource in Microgrids  

作　　者：Chun-Xia Dou Fang Zhao Xing-Bei Jia Dong-Le Liu 

机构地区：[1]Institute of Electrical Engineering, Yanshan University

出　　处：《International Journal of Automation and computing》2013年第1期73-78,共6页国际自动化与计算杂志（英文版）

基　　金：supported by National Natural Science Foundation of China(No. 51177142);China Postdoctoral Science Foundation(Nos.2012T50019 and 20110490210);Hebei Provincial Natural Science Foundation of China(No.F2012203063)

摘　　要：This paper focuses on the direct current-alternating current （DC-AC） interfaced microsource based H∞ robust control strategies in microgrids. It presents detail of a DC-AC interfaced microsource model which is connected to the power grid through a controllable switch. A double loop current-regulated voltage control scheme for the DC-AC interface is designed. In the case of the load disturbance and the model uncertainties, the inner voltage and current loop are produced based on the H∞ robust control strategies. The outer power loop uses the droop characteristic controller. Finally, the scheme is simulated using the Matlab/Simulink. The simulation results demonstrate that DC-AC interfaced microsource system can supply high quality power. Also, the proposed control scheme can make the system switch smoothly between the isolated mode and grid-connected mode. 更多This paper focuses on the direct current-alternating current （DC-AC） interfaced microsource based H∞ robust control strategies in microgrids. It presents detail of a DC-AC interfaced microsource model which is connected to the power grid through a controllable switch. A double loop current-regulated voltage control scheme for the DC-AC interface is designed. In the case of the load disturbance and the model uncertainties, the inner voltage and current loop are produced based on the H∞ robust control strategies. The outer power loop uses the droop characteristic controller. Finally, the scheme is simulated using the Matlab/Simulink. The simulation results demonstrate that DC-AC interfaced microsource system can supply high quality power. Also, the proposed control scheme can make the system switch smoothly between the isolated mode and grid-connected mode. 更多

关 键 词：MICROGRID DC-AC interfaced microsource H∞ robust control f-v droop characteristic smooth switching 

分 类 号：TM46[电气工程—电器]