Comparative Performance Analysis of Hybrid MPPT for Standalone Photovoltaic Boost DC-DC Converter

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Abstract

In recent days as the conventional source of energies getting depleted, the non-conventional/ renewable sources are getting more priority in electrical energy generation. Among all the resources solar photovoltaic energy production attaining more emphasize due to its clear, environment friendly and reclaimable property. PV systems normally witness the poor energy conversion efficacy accompanied by indecorous immutability and intermittent in nature. Thus, incorporation of MPPT algorithm has become a mandate to assure the maximum power extraction from the solar PV. Conventional MPPT controller performs well under uniform solar intensity and environmental temperature. But when there is rapid change in weather condition the conventional MPPT controllers must get associated with a second level controller. During the extraction of electric power dc-dc power converters play an important role because of their wide use in ample applications. In this initiative conventional Perturb and Observe (P&O) is interfaced with PID controllers are implemented to maintain the true MPP and extract maximum power during non-uniform ambient condition. Particle Swarm Optimization is used here to get the optimally tuned parameters of the proposed controller. Rigidness of the mentioned controller is verified under dissimilar solar intensities. The effectiveness of the system is authenticated by a commercially available PV module Sun Power SPR-215-WHT-U in MATLAB/ Simulink platform.

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Keywords

DC-DC Boost or Step up converter; MPPT; Particle Swarm Optimization (PSO); Perturb and Observe (P&O); PID; 2- DOF PID