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Robust control of hybrid fuel cell/energy storage distributed power generation system in weak grid under balanced and unbalanced voltage sag

2010; Wiley; Volume: 21; Issue: 1 Linguagem: Inglês

10.1002/etep.459

1546-3109

Amin Hajizadeh, Masoud Aliakbar Golkar, Lars Norum,

Advanced Battery Technologies Research

European Transactions on Electrical PowerVolume 21, Issue 1 p. 522-540 Research Article Robust control of hybrid fuel cell/energy storage distributed power generation system in weak grid under balanced and unbalanced voltage sag A. Hajizadeh, Corresponding Author A. Hajizadeh [email protected] Electrical and Computer Engineering Department, K.N.Toosi University of Technology, Tehran, IranElectrical and Computer Engineering Department, K.N.Toosi University of Technology, Seyedkhandan, Dr. Shariati Ave, P.O. Box 16315-1355, Tehran, Iran.Search for more papers by this authorM. A. Golkar, M. A. Golkar Electrical and Computer Engineering Department, K.N.Toosi University of Technology, Tehran, IranSearch for more papers by this authorL. Norum, L. Norum Electrical Power Engineering Department, Norwegian University of Science and Technology, Trondheim, NorwaySearch for more papers by this author A. Hajizadeh, Corresponding Author A. Hajizadeh [email protected] Electrical and Computer Engineering Department, K.N.Toosi University of Technology, Tehran, IranElectrical and Computer Engineering Department, K.N.Toosi University of Technology, Seyedkhandan, Dr. Shariati Ave, P.O. Box 16315-1355, Tehran, Iran.Search for more papers by this authorM. A. Golkar, M. A. Golkar Electrical and Computer Engineering Department, K.N.Toosi University of Technology, Tehran, IranSearch for more papers by this authorL. Norum, L. Norum Electrical Power Engineering Department, Norwegian University of Science and Technology, Trondheim, NorwaySearch for more papers by this author First published: 27 January 2011 https://doi.org/10.1002/etep.459Citations: 11Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinkedInRedditWechat Abstract The operation and control of fuel cell (FC) distributed generation (DG) systems combined with energy storage are studied in this paper. For this purpose, modeling of hybrid FC/energy storage DG system is developed. Dynamic models for proton exchange membrane fuel cell (PEMFC), supercapacitor, DC–DC converters, and grid connected inverter are described. Then a PI controller for the FC converter (boost) and a sliding mode controller for supercapacitor converter (buck-boost converter) are designed to regulate their duty cycles based on the requested current. Moreover, a robust current control strategy for voltage source converter based on positive and negative symmetrical components is presented for treating the unbalance and balance voltage sag conditions. In order to control the power between dc power sources and stabilize the dc-link power during normal and fault conditions, a self-tuning fuzzy control strategy has been designed. This controller determines the supercapacitor power that should be generated according to the amount of available energy in dc-link. The hybrid system is studied under unbalance and balance voltage sag condition. 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