Integration and management of solar energy for electric vehicle charging station

A rise of electric vehicles and consequent increase of charging stations in the UK has widely been acknowledged due to its negligible carbon emissions leading to the transformation of low-carbon economy. A dynamic increase in the wind and solar power systems installation and grid-integration to the charging stations of electric vehicles has led uncertainty issues in the power distribution grid e.g voltage fluctuations, transients/harmonics. This paper addresses the uncertainty scenario aiming to contribute and propose a potential model focusing on the design of the route in which solar electric power is delivered to the electric vehicle charging station. A specialised system containing an electrical control system is proposed using MATLAB and SIMULINK. A system was designed for improving the interaction among electric-vehicle charging points and battery storage system in which electrical control system assists in developing the correct duty cycle in order to stabilise and regulate the voltage at the DC/DC power conversion station. The proposed system is very effective and significant contribution in understanding and reducing the load on the converter untimely enabling reduction of charging time for electric vehicles. The implemented electrical control system manages the electric power on the grid such as during the peak times it draws power from the batteries and then charges up the batteries in the off-peak times. A constant voltage is achieved on the micro grid irrespective of fluctuations in solar energy generation and in the load.