Planning of a Hybrid Energy System Connected to a Distribution System
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2017 IEEE. Renewable energy sources (RES) have been gaining an increasing importance in recent years. However, the integration of these resources into the current distribution systems is considered a challenging task due to two limitations. These two limitations are the cost of equipment and the intermittency of the generated electrical power. Distributed generation of wind-photovoltaic hybrid systems connected to energy storage is proposed to overcome the variability of RES. However, the high cost of the equipment for such systems is also a major drawback. Therefore, an optimization procedure which includes capital costs of the system components is needed to determine the financial feasibility of such a hybrid system. This paper presents an optimization technique which uses linear programming in order to find the optimal planning strategy for the hybrid system. The objective function measures the total annual cost which includes the levelized capital cost as well as the operations and maintenance cost of the proposed system. The results of the optimization procedure give the optimal size for wind farm, solar farm, and energy storage needed to meet the load requirements and minimize the annual cost as well.
