@inproceedings{4821c2388389407983207929b6126591,
title = "Photovoltaic hot spot mitigation using voltage-threshold control at the panel level",
abstract = "Maximum power point tracking (MPPT) for photovoltaic (PV) panels is primarily implemented at the panel level in presently-installed PV systems. Each panel typically consists of three subpanel strings with a bypass diode connected over each subpanel. When a panel becomes partially-shaded, the MPPT control may bypass a substring to optimize power, however, bypassing increases hot spotting risk. This paper introduces a voltage-threshold control that works with existing MPPT to mitigate hot spotting. The control imposes a lower voltage limit that prevents a compromised subpanel string from being bypassed. Simulation results show that voltage-threshold control is effective in limiting hot spotting for both typical Type A and Type B PV cells, with only minimal reduction in energy output.",
keywords = "Power dissipation, Power generation, Temperature, Temperature measurement, Temperature sensors, Threshold voltage, Voltage control",
author = "Kim, {Katherine A.} and Jonathan Ehlmann and Krein, {Philip T.}",
year = "2015",
month = jul,
day = "27",
doi = "10.1109/ICPE.2015.7168040",
language = "English (US)",
series = "9th International Conference on Power Electronics - ECCE Asia: {"}Green World with Power Electronics{"}, ICPE 2015-ECCE Asia",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "1916--1921",
booktitle = "9th International Conference on Power Electronics - ECCE Asia",
address = "United States",
note = "9th International Conference on Power Electronics - ECCE Asia, ICPE 2015-ECCE Asia ; Conference date: 01-06-2015 Through 05-06-2015",
}