Deployment of residential photovoltaic solar energy systems is strongly increasing, which gives rise to problems such as partial shading and pollution, omnipresent in the built environment. Conventional modules are sensitive to the current mismatches introduced by shadows because of their series architecture of electrical interconnections. This paper presents simulations and experiments showing that a new generation of bypass diodes (BPDs) can be used, up to 1 BPD per cell, to improve the shading tolerance of conventional crystalline modules. We have used cardboard of 0% transmission, and a wire mesh (net) of 38% transmission. The more BPDs are used, the higher the maximum power under shading conditions. Using 20 smart BPDs, or 1 BPD per three cells, leads to an improvement of a factor 3 in power output; for our netting experiments, a factor 1.5 is found. Both performance enhancement and lower diode temperatures lead to increased shade resilience and reliability.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Photovoltaics in the shade : One bypass diode per solar cell revisited



    Published in:

    Publication date :

    2017




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English



    Classification :

    BKL:    53.36 Energiedirektumwandler, elektrische Energiespeicher



    Photovoltaic solar shade

    PIEKNY MARK G | European Patent Office | 2019

    Free access

    Photovoltaic Solar Shade

    PIEKNY MARK G | European Patent Office | 2017

    Free access

    Solar shade structure

    CORSI HENSON JESSE WOLF | European Patent Office | 2021

    Free access

    SOLAR WINDOW SHADE

    HONTZ JEFFREY W / FINLAY TRAVIS K / POZZI ALEXANDER NICHOLAS | European Patent Office | 2020

    Free access

    The bypass diode assembly: solar cell protection for Space Station Freedom

    Woike, T.W. / Stotlar, S.C. / Woods, L. | Tema Archive | 1990