Maximum power point tracking quadratic boost converter for photovoltaic systems

Providing maximum utilization of the photovoltaic system is one of the significant challenges. Therefore, converter technologies and maximum power point tracking algorithms are important research topics. In this study, a quadratic boost converter with high conversion ratio is proposed. The proposed quadratic converter not only steps up the PV voltage which is commonly low, it also tracks the maximum power point of the PV system under varying operation conditions. The incremental conductance method is used as maximum power point tracking algorithm. Thus, productivity of the PV system is increased. It is seen from simulation results that, proposed system has fast tracking capability even under fast irradiation changes and less oscillation besides the features of high voltage conversion gain.