Simulation of a Hybrid Power System Consisting of Wind Turbine, PV, Storage Battery and Diesel Generator: Design, Optimization and Economical Evaluation

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Journal Title, Volume, Page: 
IJEE Vol.1 No.1 2011 PP.56-61
Year of Publication: 
2011
Authors: 
Abdel-Karim Daud
Electrical Engineering Department, Palestine Polytechnic University, Hebron, Palestine
M. Ismail
Electrical Engineering Department, Technical University-Kadoorie, Tulkarm, Palestine
Walid Kukhun
Hisham Hijjawi College, An-Najah National University, Nablus, Palestine
Marwan Mahmoud
Department of Electrical Engineering, Faculty of Engineering and Information Technology, An-Najah National University, Nablus. Palestine
Current Affiliation: 
Department of Electrical Engineering, Faculty of Engineering and Information Technology, An-Najah National University, Nablus. Palestine
Preferred Abstract (Original): 

 Hybrid power systems are based on renewable energysources and especially on photovoltaic and wind energy systems.Software package is used to analyze measuring data for windspeed and solar radiation of two locations in Palestine(Ramallah and Nablus). Results of analysis illustrate thatenergy density available in wind for Ramallah site is about 2008  kWh/ mP2.year, while it is 927 kWh/m2 .year for Nablus site. Thedaily average of solar radiation intensity on horizontal surfaceis about 5.4 kWh/m2 .day. A Matlab software package is used to  simulate different scenarios of operation of the hybrid  system by making energy balance calculations on an hourly basis foreach of the 8760 hours in a year. This enable  to  choose the appropriate sizes of the different components for the most optimum  scenario. The optimization is based on cost of generation. Results of the simulation illustrate that the most economic scenario is the scenario that uses a hybrid systemmainly dependent on wind. Cost of energy (COE) in thisscenario is 1.28 NIS/kWh(͠   0.35 $/kWh). Other scenariosdependent on wind-diesel hybrid system, PV-diesel  hybrid system, wind stand-alone system, PV stand-alone system, or diesel only, give results of COE greater than this value. It wasconcluded that none of the hybrid system scenarios analyzedcould be justified to replace  purchasing of electricity from thegrid where the COE is 0.70 NIS/kWh(0.19 $/kWh).

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