Open AccessBinary‐based tracer of photovoltaic array characteristics
Author(s) -
Rivai Ahmad,
Rahim Nasrudin Abd
Publication year - 2014
Publication title -
iet renewable power generation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.005
H-Index - 76
ISSN - 1752-1424
DOI - 10.1049/iet-rpg.2013.0111
Subject(s) - resistor , tracer , photovoltaic system , microcontroller , binary number , electrical engineering , computer science , electronic engineering , engineering , mathematics , physics , arithmetic , voltage , nuclear physics
Conventional photovoltaic (PV) I–V ‐curve tracer uses a lot of resistors and switches to produce a smooth curve. We propose a binary I–V ‐curve tracer with an adjustable‐resistance load, which means fewer switches and resistors to achieve the same smooth curve. The prototype was built in an ATMega 8535 microcontroller and then tested in various shade conditions of the PV array.