A Charging Strategy for PHEVs Based on Maximum Employment of Renewable Energy Resources in Microgrid

Ehsan Fouladi, Hamid Reza Baghaee, Mehdi Bagheri, Gevork Babamalek Gharehpetian

2019

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DOI 10.1109/eeeic.2019.8783742
Data confidence 70 medium
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Abstract

Plug-in hybrid electric vehicle (PHEV) has become a significant component in the fundamental infrastructure of microgrids (MGs). It is therefore of crucial practical interest to coordinate PHEVs with the rest of the grid. Supply demand coordination is an essential way to attain high energy efficiency at the system level while satisfying the stability of the grid requirement. This problem is challenging due to the high uncertainty from both the demand and supply sides in the system. This paper proposes a PHEVs smart charging that can achieve optimal operation for MGs. The proposed power management strategy is designed to minimize the MG dependency on the main grid, and to charge PHEVs based on maximum employment of RERs. Two scenarios are considered: the first scenario is designed so that PHEVs are charged without optimization and, the second case where PHEVs is charged in a smart way with optimization in order to reduce MG dependency on the main grid. Modified IEEE 33-bus system is simulated by MATLAB to verify the performance of the proposed power management strategy. The off-line digital time-domain simulations and software verification show that energy exchange between MG and the main grid is reduced. Also, the RERs generation is increased in order to charge the PHEVs.