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Optimal Configuration and Energy Scheduling Algorithm for an Off-Grid Hybrid Microgrid


Godwin O. Uzedhe
Isaac C. Febaide
Austin. C. O. Azubogu

Abstract

Off-grid hybrid microgrid which combines power sources from different technologies based on the availability of such resources and the economic/environmental considerations is gaining global interest due to the unreliable nature of conventional power systems. This research seeks to obtain an optimal configuration and develop a simple energy scheduling algorithm for a modern market using PV/Battery storage/Diesel generator technologies. HOMER software was used in obtaining the optimal configuration and economic/environmental analysis. The development of the scheduling algorithm was done based on the concept of energy flow in an off-grid hybrid microgrid using MATLAB software. An estimated load of 389.79 kW and average daily solar irradiance of 164.09W/m2 was recorded for the study site. The simulation results yielded Net Present Cost (NPC) of $6,405,234.36 and $0.2414 Cost of Energy (COE). A Greenhouse Gas (GHG) emission reduction of 42% was recorded for an off-grid system with solar renewable source. These clearly indicate that the use of optimized hybrid electrical energy resources with simple scheduling could greatly reduce both operational cost and environmental pollution.


Journal Identifiers


eISSN: 2579-0617
print ISSN: 2579-0625