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Optimal Energy Management of V2B with RES and ESS for Peak Load Minimization

By Nandinkhuu Odkhuu, Ki-Beom Lee, Mohamed A. Ahmed and Young-Chon Kim

Abstract

In order to decrease fuel consumption and greenhouse gas emissions, electric vehicles (EVs) are being widely adopted as a future transportation system. Accordingly, increasing the number of EVs will mean battery charging will have a significant impact on the power grid. In order to manage EV charging, an intelligent charging strategy is required to prevent the power grid from overloading. Therefore, we propose an optimal energy management algorithm (OEMA) to minimize peak load on a university campus consisting of an educational building with laboratories, a smart parking lot, EVs, photovoltaic (PV) panels and an energy storage system (ESS). Communication networks are used to connect all the system components to a university energy management system (UEMS). The proposed OEMA algorithm coordinates EV charging/discharging so as to reduce the peak load of the building’s power consumption by considering the real-time price (RTP). We also develop a priority determination method for the time allocation of the optimal charging algorithm. Priority is determined by arrival time, departure time, state-of-charge (SOC), battery capacity and trip distance. The performance of the proposed algorithm is evaluated in terms of charging cost and peak load under the real environment of the university engineering building

Topics: electric vehicle, smart parking lot, vehicle-to-building, photovoltaic, energy storage system, time-slot allocation, energy management system, Technology, T, Engineering (General). Civil engineering (General), TA1-2040, Biology (General), QH301-705.5, Physics, QC1-999, Chemistry, QD1-999
Publisher: MDPI AG
Year: 2018
DOI identifier: 10.3390/app8112125
OAI identifier: oai:doaj.org/article:27a5dd8706044c0185d82556937ff9a5
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