Application of “PolySwitch” fuses for the limitation of current overloads in photovoltaic systems of solar arrays

Authors

  • A. V. Ivanchenko Oles Honchar Dnipro National University, Dnipro, Ukraine
  • A. S. Tonkoshkur Oles Honchar Dnipro National University, Dnipro, Ukraine
  • S. V. Mazurik Oles Honchar Dnipro National University, Dnipro, Ukraine

DOI:

https://doi.org/10.15421/331813

Keywords:

solar array, current overload, resettable fuse, photovoltaic cell, current-voltage characteristics, power curve

Abstract

The results of experimental study of the transformation of the light current-voltage and volt-watt characteristics for the parallel connections of photovoltaic modules when using “PolySwitch” polymer resettable fuses are given. The conditions for selecting such fuses which allow their correctly triggering and minimize the current overload are formulated and experimentally verified. It is established that if resettable fuses are connected in series to the circuits of all photovoltaic modules, which are connected in parallel thus forming a unit, this prevents such a situation as the complete loss of electrical energy generated by this unit due to the short circuit of one of its modules. At the fuse triggering the total power loss of the unit of parallelly connected photovoltaic modules is mainly determined by the decrease of its current by the amount that is equal to the current of the disconnected photovoltaic module.

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Published

03-12-2018

Issue

Vol. 26 No. 1 (2018)

Section

Articles