Economic Dispatch of Micro-Grid Considering Electric Vehicles

Sim, Wai Sheng (2021) Economic Dispatch of Micro-Grid Considering Electric Vehicles. Final Year Project (Bachelor), Tunku Abdul Rahman University College.

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Abstract

Nowadays, with more penetration of renewable energy and the increasing number of electric vehicles (EV), it demonstrates the importance of the economic dispatch (ED) on the power grid. A micro-grid is a decentralized group of electricity sources that consists of solar photovoltaic, energy storage system and vehicles-to-grid technology (V2G) which electric vehicle able to charged and discharged based on the different signals. The economic dispatch strategy is to reduce the operating cost of the micro-grid system and maximizing the use of energy storage systems while complying with all the constraints. The proposed optimized algorithm is based on linear programming and heuristic search. Moreover, four different cases of micro-grid economic dispatch consider electric are put forward, which are using heuristic search to optimize battery storage system and consider EV discharging back to micro-grid for case 1, using heuristic search to optimize battery storage system and EV does not discharge back to micro-grid for case 2, using linear programming to optimize battery storage system and consider EV discharging back to micro-grid for case 3, using linear programming to optimize battery storage system and EV does not discharge back to micro-gird for case 4. The final results of this project should show that this method was able to reduce the operating cost and peak load demand of the micro-grid system.