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A proposal of a procedure to estimate a standard line for contactless estimation of a solar cell voltage in a module using modulated light
Author(s) -
Kobayashi Yasuyuki,
Kisu Shunsuke
Publication year - 2020
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.23271
Subject(s) - voltage , detector , photovoltaic system , signal (programming language) , line (geometry) , electroluminescence , solar cell , thermography , fault (geology) , fault detection and isolation , electronic engineering , electrical engineering , engineering , optics , materials science , computer science , physics , mathematics , geometry , layer (electronics) , seismology , geology , infrared , programming language , actuator , composite material
It is important to measure the operating voltage of a cell sealed in a photovoltaic module as well as well‐known faults such as abnormal hot spots observed by thermography or a dark part in electroluminescence distribution on the module for detecting a fault module. This paper proposes a method that radiating modulated light toward a cell and extracting the synchronized signal from the module output by phase detector can estimate the operating voltage quantitatively by using a standard line predicted by shading the module partially.