Application of the TAB converter fed into voltage as energy source coupler

This paper presents the computer simulations in software PSIM of a proposed system of integration of energy sources in which the TAB converter serves as interface. In TAB converter a transformer serves to magnetically link the converters. Besides the advantage of galvanic isolation, this topology easily affords different levels of voltages on its ports. This can be done by the proper choice of the turns ratio of transformer windings and suitable adjustment. The proposed system has a load, a main source of voltage and an auxiliary power source formed by a photovoltaic panel and a Sepic converter that is used as a transformer DC-DC. The converter is fed into voltage, and applies a method of decoupling loops for control of voltage. The MPPT of the PV panel is made with the method of voltage constant. It´s observing a smooth exchange of power between the ports. The current in system has good behavior, even without control. The system presented can be used in UPS and micro-grids.