Power fluctuations suppression of stand-alone hybrid generation combining solar photovoltaic/wind turbine and fuel cell systems

TitlePower fluctuations suppression of stand-alone hybrid generation combining solar photovoltaic/wind turbine and fuel cell systems
Publication TypeJournal Article
Year of Publication2008
AuthorsAhmed NA, Miyatake M, Al-Othman A.K
JournalEnergy Conversion and Management
Volume49
Pagination2711–2719
Keywordsdc-dc Boost converter, Fuel cell, Hybrid generation system, Maximum power point tracking, Solar photovoltaic, Variable speed wind turbine
AbstractIn this paper a hybrid energy system combining variable speed wind turbine, solar photovoltaic and fuel cell generation systems is presented to supply continuous power to residential power applications as stand-alone loads. The wind and photovoltaic systems are used as main energy sources while the fuel cell is used as secondary or back-up energy source. Three individual dc-dc boost converters are used to control the power flow to the load. A simple and cost effective control with dc-dc converters is used for maximum power point tracking and hence maximum power extracting from the wind turbine and the solar photovoltaic systems. The hybrid system is sized to power a typical 2 kW/150 V dc load as telecommunication power plants or ac residential power applications in isolated islands continuously throughout the year. The results show that even when the sun and wind are not available; the system is reliable and available and it can supply high-quality power to the load. The simulation results which proved the accuracy of the proposed controllers are given to demonstrate the availability of the proposed system in this paper. Also, a complete description of the management and control system is presented. ?? 2008 Elsevier Ltd. All rights reserved.