Enhancements in Micro-Grid Operation through Electric Vehicle Charging and Discharging

Abstract

Power systems industry is faced with a new challenge that includes massive integration of electric vehicles in the power grid. Thus, it requires deep investigation of Electric vehicle's integration in the already developed grid control and operational structures, such as the microgrid concept. This paper is focused on the design and operation of a microgrid with the development of specific control functionalities to incorporate EV models for smart charging with vehicle-to-grid (V2G) implementation under normal and islanded modes. The modeling is done in Simulink to simulate the behavior of a MG for islanded modes under-voltage unbalanced conditions. It is found that EVs have different responses depending on the different droop parameters. It is seen that EVs have different responses depending on the droop parameters, where some EVs decrease the power being drawn from the grid.