Design and Implementation of Buck - Boost Converter for Residential PV Application
International Journal on Electrical Engineering and Informatics
Solar based renewable power generation is more important to compensate fossil fuel power generation. It is necessary to implement Maximum Power Point Tracking (MPPT) system to reduce cost of PV array system by decreasing the number of solar panel required to generate the power. Since the solar power fluctuates with the sunlight's intensity, it requires conversion to maintain the desired voltage like inverters. In this paper, a series compensation scheme is suggested. Perturbation and
... tion and observation (P&O) algorithm of MPPT. A single stage architecture of photovoltaic generators which is used for residential applications are incapable to boost the voltage of the PV modules and also provides deficient input voltage range in spite of providing deplete power loss. This research work proposes a series connection of buck-boost converter which operates only in buck mode and also processes a fraction of the power input from the inverter while operating at high efficiency. This inverter focused SPWM pulses and produces pure sine wave as output. The duty ratio is decreased to less than 0.5 hence switching losses also reduced. The proposed logic is carried out in simulation and hardware setup of 480W prototype and the results were analyzed to enhance the advantage of the series compensation approach.