The integration of bypass diodes with terrestrial photovoltaic modules and arraysBypass diodes are often required to limit the potential for reverse voltage 'hot-spot' heating in high voltage arrays or in arrays that undergo periodic operation near the short-circuit point. In addition, when properly applied, bypass diodes can minimize the effect of shadowing and various internal module failures on the array energy output. This paper discusses the mechanical and electrical integration of bypass diodes beginning with the array-level considerations which influence the selection of an implementation approach. Concepts for the mounting of these diodes, both internally within the module encapsulant and externally to the exposed rear surface of the module, are described. Factors affecting the reliability of bypass diodes, including the control of junction temperature through adequate heat sinking and the derating of reverse voltage, are discussed.
Document ID
19850053513
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Shepard, N. F., Jr. (General Electric Co., Advanced Energy Programs Dept., King of Prussia PA, United States)
Sugimura, R. S. (California Institute of Technology, Jet Propulsion Laboratory, Pasadena CA, United States)