A Multi- Input Single Switch (MISS) Battery Charger
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2015, Vol 3, Issue 12
Abstract
Non conventional power and storage have made DC based domestic distribution an smart choice for future homes. This paper proposes Multi-Input-Single Switch (MISS) battery charger for DC nanogrids, instead of using different dedicated converters. The main aim of this work is to design a single stage boost converter with multiple inputs that can efficiently charge a battery for DC nano grids. The output of the converter is directly connected to a battery to save an additional converter stage for each source. Due to low power rating of the system, it is very important to minimize number of converter stages and use the generated energy efficiently. From various unidirectional renewable energy sources, different dedicated converters used, so this paper proposes a multiple input with a single stage boost converter that can efficiently destroy generated energy to charge a battery, Non conventional energy sources will have profitable value when some of the other sources are not great enough to command a dedicated converter. The converter is called Multi-Input-Single Switch (MISS) converter. The converter varies the duty cycle based on finest operation of the major power source (e.g., MPP in case of solar panel), where as the other smaller unidirectional sources act as slave. PV Module Maximum Power Point Tracker (MPPT) is a photovoltaic system that uses the photovoltaic array as a source of electrical power supply. Every photovoltaic (PV) array has an optimum operating point, called the maximum power point, which varies depending on cell temperature, the insulation level and array voltage. The function of MPPT is needed to operate the PV array at its maximum power point. Here Incremental conductance method can find the MPPT accurately; Incremental conductance method can track the MPPT at changing atmospheric conditions and efficiency also improved. The simulations are performed by using MATLAB/Simulink.
Authors and Affiliations
P. Durga Prasad, J. Hemasunder
Keywords
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