A fuzzy MPPT Based Solar Plant with Triple Active Full Bridge Integration to Two Grid Networks Including EV Charging Stations

Abstract

In this paper a TAFB topology connected to a solar plant for power sharing to two grid networks is introduced. One port of the TAFB is connected to solar plant which is considered to be input port with only unidirectional power flow. The other two ports are connected to two different grid networks through individual VSCs controlled by SRF controller. Each grid network is integrated with a charging station which charges the EV batteries using high rated power electronic circuits. The TAFB circuit is controlled using PSPM technique which creates phase delay in the high frequency pulse of the port bridge for transfer of power to the port.For maximum power extraction from the solar plant FIS-MPPT technique is integrated to the PSPM control. The system is operated in different operating modes varying the transfer of power between the ports by changing the phase delay of the high frequency pulse. The complete power exchange analysis is carried out using Simulink tools in MATLAB software. The modeling of modules in done using blocks from ‘Specialized Powersystems’ of the ‘Electrical’ subset in Simulink library browser. All the results are presented in graphical plotting with time as reference including measurements of voltages, currents and powers of each module.