The importance of control strategies in PV–hydrogen systems

The control strategy for a photovoltaic (PV) system with a hydrogen (H 2) subsystem consisting of an electrolyzer, pressurized hydrogen gas storage, and fuel cell has been investigated. Detailed computer simulation models for TRNSYS have been developed, tested, and verified against a reference syste...

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Veröffentlicht in:	Solar energy 2004, Vol.76 (1), p.323-329
1. Verfasser:	Ulleberg, Oystein
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Energy Energy. Thermal use of fuels Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc Equipments, installations and applications Exact sciences and technology Fuel cells Hydrogen Innovations Modeling Natural energy Photovoltaic cells Photovoltaic conversion Photovoltaics PV–hydrogen Solar energy Stand-alone power systems
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Beschreibung
Zusammenfassung:	The control strategy for a photovoltaic (PV) system with a hydrogen (H 2) subsystem consisting of an electrolyzer, pressurized hydrogen gas storage, and fuel cell has been investigated. Detailed computer simulation models for TRNSYS have been developed, tested, and verified against a reference system, namely the PHOEBUS plant in Jülich, Germany. The basic control strategy and main logical control variables for a PV–H 2 system are described. System performance indicators, parameters, and constraints that can be used to analyze the performance of PV–H 2 systems have been identified. The results from a time series simulation for a typical year are presented. Finally, the importance of selecting smart control strategies is demonstrated.
ISSN:	0038-092X 1471-1257
DOI:	10.1016/j.solener.2003.09.013