Results 181 to 190 of about 20,903 (229)
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Silicon solar cells with integral bypass diodes
Solar Cells, 1981Abstract Field experience has brought to light undesirable features of the operation of solar cell arrays due fundamentally to mismatch in the output of individual cells. These difficulties can be avoided if bypass diodes are connected across cells or groups of cells.
M.A. Green +2 more
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Durability Performance Testing of SiC Diodes for use as Bypass Diodes in Photovoltaic Modules
2020 47th IEEE Photovoltaic Specialists Conference (PVSC), 2020When a bypass diode (BPD), which is a protective element in the photovoltaic module, fails owing to a short circuit, the faulty BPD generates heat, creating a risk of burnout. In this study, durability tests were conducted simulating the use of three different types of diode—silicon Schottky barrier diode (Si-SBD), PN junction diode (PND), and silicon ...
Toshiyuki Hamada +3 more
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Study of bypass diodes configuration on PV modules
Applied Energy, 2009A procedure of simulation and modelling solar cells and PV modules, working partially shadowed in Pspice environment, is presented. Simulation results have been contrasted with real measured data from a commercial PV module of 209 Wp from Siliken. Some cases of study are presented as application examples of this simulation methodology, showing its ...
S. Silvestre, A. Boronat, A. Chouder
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The reliability of bypass diodes in PV modules
SPIE Proceedings, 2013The operating conditions of bypass diodes in PV modules deployed in the field are considerably harsher than the conditions at which the diode manufacturers test the diodes. This has a potential to significantly reduce the operating life of bypass diodes and has raised concerns about the safety and reliability of PV modules as a whole.
Dhere, Neelkanth G. +3 more
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Vertically-Stacked Photovoltaic/Bypass Diode Module With Improved Shadow Performance
IEEE Electron Device Letters, 2021This letter presents a vertically-stacked photovoltaic (PV)/bypass diode (BPD) module fabricated via localized substrate removal and flip-chip assembly with the aim of improving shadow performance under Gaussian laser illumination. The proposed scheme also prevents the direct illumination of BPDs to eliminate reverse current leakage.
Yung-Jr Hung +4 more
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2018 7th International Conference on Renewable Energy Research and Applications (ICRERA), 2018
In a solar power generation module, when a bypass diode (BPD) with a resistance ranging between 0.1–10 $\Omega$ is damaged by a lightning surge, a circulating current flows through the bypass circuit comprising a serially connected BPD and solar cell. In such a case, the BPD is in danger of heating up and catching fire.
Toshiyuki Hamada +5 more
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In a solar power generation module, when a bypass diode (BPD) with a resistance ranging between 0.1–10 $\Omega$ is damaged by a lightning surge, a circulating current flows through the bypass circuit comprising a serially connected BPD and solar cell. In such a case, the BPD is in danger of heating up and catching fire.
Toshiyuki Hamada +5 more
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DIODE LASER-ASSISTED CAROTID BYPASS SURGERY
Neurosurgery, 2006Conventional suturing methods of microvascular anastomosis are associated with various degrees of vascular wall damage that can lead to thrombosis and bypass occlusion. An experimental model of double end-to-side venous graft anastomosis on the common carotid artery was set up to compare conventional suturing methods with a low-power diode laser ...
A.Puca +8 more
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High-voltage CMOS photovoltaic module with Schottky bypass diodes
2019 24th Microoptics Conference (MOC), 2019We demonstrate monolithic integration of high-voltage photovoltaic array and Schottky bypass diodes on the same bulk CMOS chip for the first time. Post localized substrate removal process was utilized to enable on-chip electrical isolation and serial/parallel connection.
Jian-Fu Liao +2 more
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Portable LED Flasher with Implemented Bypass Diode Tester
2014A new LED based photovoltaic module flasher is presented to perform nominal power measurements at 1000W/m2 within a flash period of 10ms, together with low light measurements. Additionally performance tests of the typical 3 bypass diodes of a standard 6” crystalline silicon PV module are performed during three flasher periods within totally 2 seconds ...
Schär, D., Baumgartner, F.P.
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Predicting service life of bypass diodes in photovoltaic modules
2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC), 2015Service life model for bypass diodes is a critical step towards developing service life models for PV modules. A review of failure mechanisms in bypass diodes along with the accelerated tests that could replicate them is presented. Susceptibility of commercially available bypass diodes for thermal runaway was studied.
Shiradkar, Narendra +2 more
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