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Defect design of insulation systems for photovoltaic modulesA defect-design approach to sizing electrical insulation systems for terrestrial photovoltaic modules is presented. It consists of gathering voltage-breakdown statistics on various thicknesses of candidate insulation films where, for a designated voltage, module failure probabilities for enumerated thickness and number-of-layer film combinations are calculated. Cost analysis then selects the most economical insulation system. A manufacturing yield problem is solved to exemplify the technique. Results for unaged Mylar suggest using fewer layers of thicker films. Defect design incorporates effects of flaws in optimal insulation system selection, and obviates choosing a tolerable failure rate, since the optimization process accomplishes that. Exposure to weathering and voltage stress reduces the voltage-withstanding capability of module insulation films. Defect design, applied to aged polyester films, promises to yield reliable, cost-optimal insulation systems.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Mon, G. R.
(California Institute of Technology, Jet Propulsion Laboratory, Pasadena CA, United States)
Date Acquired
August 10, 2013
Publication Date
January 1, 1981
Subject Category
Energy Production And Conversion
Meeting Information
Meeting: Photovoltaic Specialists Conference
Location: Kissimmee, FL
Start Date: May 12, 1981
End Date: May 15, 1981
Accession Number
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