Power Flow Management in Photovoltaic Energy System Using Multiport DC-DC Converter

Abstract

In this paper, the power flow controller for multi-port DC-DC converter was modified, so it mediator a photocell, a storage element and an isolated load. The MOSFET switches are used to design the presented model to manage the flowing power of load voltage and two sources independently. Theoretical researches are implemented to prove the capability of the controllers to regulate the flowing of power for the photovoltaic generator and the storage element while maintaining the load in three cases. First, the photovoltaic power is greater, less and equal to load resistance and maintaining the switches in the best condition for each case. Finally, the power of the photovoltaic generator follows the direction proposed by the MOSFEST switcher's control.