Efficiency degradation due to modules soiling is a key factor in photovoltaic plants, which must be accurately taken into account in order to set a maintenance program, which optimizes the production/cost ratio. In this paper a model is developed, which accounts for the losses in the energy production due to dust and other kind of dirt. A small PV system with a proper measurement bench and a reference panel kept clean was set up allowing to identify different shading effects due to different kinds of soiling. Early results allowed identifying different soiling factors on current and voltage. This will enable the development of a smart system optimizing the PV plant maintenance, especially for the module cleaning interventions.

Photovoltaic plant maintainability optimization and degradation detection: Modelling and characterization / P. Cova, N. Delmonte, M. Lazzaroni. - In: MICROELECTRONICS RELIABILITY. - ISSN 0026-2714. - 88-90(2018 Sep), pp. 1077-1082. [10.1016/j.microrel.2018.07.021]

Photovoltaic plant maintainability optimization and degradation detection: Modelling and characterization

M. Lazzaroni
Ultimo
Membro del Collaboration Group
2018-09

Abstract

Efficiency degradation due to modules soiling is a key factor in photovoltaic plants, which must be accurately taken into account in order to set a maintenance program, which optimizes the production/cost ratio. In this paper a model is developed, which accounts for the losses in the energy production due to dust and other kind of dirt. A small PV system with a proper measurement bench and a reference panel kept clean was set up allowing to identify different shading effects due to different kinds of soiling. Early results allowed identifying different soiling factors on current and voltage. This will enable the development of a smart system optimizing the PV plant maintenance, especially for the module cleaning interventions.
modelling; photovoltaic; soiling; electronic, optical and magnetic materials; atomic and molecular physics, and optics; safety, risk, reliability and quality; condensed matter physics; surfaces, coatings and films; electrical and electronic engineering
Settore ING-INF/07 - Misure Elettriche e Elettroniche
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/601087
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