Design of high voltage gain sepic converter for three phase load

This paper describes an interleaved SEPIC converter, with a wide range dc link voltage. Number of Photo voltaic(PV) cells are connected to generate an electrical energy, which is then connected to an interleaved SEPIC converter feeding a Three phase inverter through which energy is supplied to the load. The SEPIC is interface with PV module to track the maximum power output. MPPT techniques should be used in photovoltaic system to maximize the panel output power which depends on panel's temperature and on irradiance condition by continuously tracking the maximum power point. SEPIC circuit is operating at discontinuous conduction mode to achieve unity power factor. Here for the purpose of implementation 80V input voltage, 1650V output voltage DC-DC converter whose operating frequency is 50KHz is constructed.