Implementation of integrated converter topologies for grid-connectedphotovoltaic module

The growth of photovoltaic (PV) module generation is growing at almost an exponential rate. A PV power system with high voltage gain and the steady-state analysis are presented in this paper. For a typical photovoltaic cell, the output voltage is comparatively low, and for grid connection it required high voltage gain. Hence the proposed topology uses interleaved converter coupled with inductor coil and PWM technique as a primary conversion stage which moderate the voltage to a high dc bus voltage. In second stage a bridge inverter with bidirectional power flow strategy which interconnect grid. In addition to this for power balancing a Maximum Power Point Tracking (MPPT) system is applied gives high performance with minimum cost and high dynamic response.