Grid Integrated EV Charging Station Using PV Based Improved Landsman ZETA Converter

Electric Vehicles (EV) are becoming a popular alternative for fuel based vehicles due to its eco-friendly nature. Generally, to charge EV vehicles the requirement of electricity is essential. At residence AC chargers with the aid of domestic supplies are employed for EV charging. However, energy stored by EV battery is not sufficient to make a journey over long distances. Here comes the need for EV charging stations in which the energy for charging is obtained by means of renewable sources. This paper proposes the concept of EV charging, in which solar PV systems plays remarkable concert in generating energy. Such systems provide green environment without pollution and carbon emission. The bi-directional battery accumulates the energy generated from the Photovoltaic (PV) system. The excess energy generated from PV is transmitted to grid through Improved Landsman Zeta converter coupled with Single Phase Voltage Source Inverter(1φ VSI). During unavailability of PV power, energy from grid is effectively utilized for EV charging. The converter operation is controlled using adaptive fuzzy tuned PI controller approach which in turn produces stabilized supply to the DC link. Similarly, 1φ VSI connected to the grid, is optimized by utilizing Proportional Integral (PI) controller. The DSPIC 30F4011 controller is used for generation of PWM pulses from the driver circuit. The overall work is established through MATLAB and corresponding simulation responses are attained. The simulated responses results with the efficiency of 98% and 1:18 voltage gain respectively.