Automation infrastructure and operation control strategy in a stand-alone power system based on renewable energy sources

Ziogou, Chrysovalantou/ Seferlis, Panos/ Elmasides, Costas/ Stergiopoulos, Fotis/ Voutetakis, Spyros/ Ipsakis, Dimitris/ Papadopoulou, Simira/ Ιψάκης, Δημήτρης/ Ζιώγου, Xρυσοβαλάντου/ Ελμασίδης, Κωνσταντίνος/ Stergiopoulos, Fotis/ Παπαδοπούλου, Σημίρα/ Σεφερλής, Πάνος/ Βουτετάκης, Σπύρος

Institution and School/Department of submitter: ΤΕΙ Θεσσαλονίκης
Keywords: Power Management Strategy;Automatic Control;Hydrogen Production;Renewable Energy Sources;Stand-alone Power System
Issue Date: 20-Jul-2011
Publisher: Elsevier
Citation: Journal of Power Sources, vol. 196, 2011
Ziogou, C. (20 Ιουλίου 2011). Automation infrastructure and operation control strategy in a stand-alone power system based on renewable energy sources. Journal of Power Sources 196, (22). Διαθέσιμο σε: (Ανακτήθηκε 13 Ιουλίου 2015).
Abstract: The design of the automation system and the implemented operation control strategy in a stand-alone power system in Greece are fully analyzed in the present study. A photovoltaic array and three wind generators serve as the system main power sources and meet a predefined load demand. A lead-acid accumulator is used to compensate the inherent power fluctuations (excess or shortage) and to regulate the overall system operation, based on a developed power management strategy. Hydrogen is produced by using system excess power in a proton exchange membrane (PEM) electrolyzer and is further stored in pressurized cylinders for subsequent use in a PEM fuel cell in cases of power shortage. A diesel generator complements the integrated system and is employed only in emergency cases, such as subsystems failure. The performance of the automatic control system is evaluated through the real-time operation of the power system where data from the various subsystems are recorded and analyzed using a supervised data acquisition unit. Various network protocols were used to integrate the system devices into one central control system managing in this way to compensate for the differences between chemical and electrical subunits. One of the main advantages is the ability of process monitoring from distance where users can perform changes to system principal variables. Furthermore, the performance of the implemented power management strategy is evaluated through simulated scenarios by including a case study analysis on system abilities to meet higher than expected electrical load demands.
Description: Δημοσιεύσεις μελών--ΣΤΕΦ--Τμήμα Αυτοματισμού, 2015
ISSN: 0378-7753
Other Identifiers: doi:10.1016/j.jpowsour.2011.07.029
Appears in Collections:Δημοσιεύσεις σε Περιοδικά

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