A Power Equalizer for Shaded PV Module
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2016, Vol 4, Issue 3
Abstract
This paper deals with a photovoltaic (PV)-module embedded power-electronics topology derived from a battery equalizer. The photovoltaic equalizer is a promising response to the problems of partial shading in photovoltaic modules. Equipped with a network of transistors, this system can connect itself to the unshaded cells of the photovoltaic module, gather their excess current, and share it with the shaded cells. The topology does so by equalizing the overall energy of the PV module through the use of buck-boost converter. The parameters and operating points of individual solar cells change depending on the solar cell temperature and the level of solar irradiance. The proposed model can provide realistic behaviour of partially shaded photovoltaic module required in simulation tools used in the development of a microinverter. The model was confirmed by measurements performed on the tested photovoltaic module. All simulations are validated through measurements.
Authors and Affiliations
Parag Kishor Jawale, Ritesh Vinayak Chopde, Akshay Kailas Dhanwade
Keywords
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