Improved parametric empirical determination of module short circuit current for modelling and optimization of solar photovoltaic systems

Joshua Pearce 12 PAGES (8972 WORDS) Article
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Correct modelling of solar photovoltaic (PV) system yields is necessary to optimize system design, improve reliability of projected outputs to ensure favourable project financing and to facilitate proper operations and maintenance. An improved methodology for fine resolution modelling of PV systems is presented using module short-circuit current (Isc) at 5-min time-scales, and clearly identifies pertinent error mechanisms that arise when working at this high resolution. This work used a modified version of the Sandia array performance model, and introduces new factors to the calculation of Isc to account for identified error mechanisms, including instrumentation alignment, spectral, and module power tolerance errors. A simple methodology was introduced and verified where specific module parameters can be derived solely from properly filtered performance time series data. In particular, this paper focused on methodologies for determining the predicted Isc for a variety of solar PV module types. These methods of regressive analysis significantly reduced the error of the predicted model, and demonstrate the need for this form of modelling when evaluating long term PV array performance. This methodology has applications for current systems operators, which will enable the extraction of useful module parameters from existing data in addition to more precise continuous monitoring of existing systems, and can also be used to more accurately model and optimize new systems.

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APA

Joshua, P (2019). Improved parametric empirical determination of module short circuit current for modelling and optimization of solar photovoltaic systems. Afribary.com: Retrieved February 25, 2021, from https://afribary.com/works/improved-parametric-empirical-determination-of-module-short-circuit-current-for-modelling-and-optimization-of-solar-photovoltaic-systems

MLA 8th

Pearce, Joshua. "Improved parametric empirical determination of module short circuit current for modelling and optimization of solar photovoltaic systems" Afribary.com. Afribary.com, 22 Apr. 2019, https://afribary.com/works/improved-parametric-empirical-determination-of-module-short-circuit-current-for-modelling-and-optimization-of-solar-photovoltaic-systems . Accessed 25 Feb. 2021.

MLA7

Pearce, Joshua. "Improved parametric empirical determination of module short circuit current for modelling and optimization of solar photovoltaic systems". Afribary.com, Afribary.com, 22 Apr. 2019. Web. 25 Feb. 2021. < https://afribary.com/works/improved-parametric-empirical-determination-of-module-short-circuit-current-for-modelling-and-optimization-of-solar-photovoltaic-systems >.

Chicago

Pearce, Joshua. "Improved parametric empirical determination of module short circuit current for modelling and optimization of solar photovoltaic systems" Afribary.com (2019). Accessed February 25, 2021. https://afribary.com/works/improved-parametric-empirical-determination-of-module-short-circuit-current-for-modelling-and-optimization-of-solar-photovoltaic-systems