Preprint Article Version 1 This version is not peer-reviewed

Photovoltaic Cell and Module I-V Characteristic Approximation Using Bézier Curves

Version 1 : Received: 1 February 2018 / Approved: 2 February 2018 / Online: 2 February 2018 (07:17:17 CET)

How to cite: Szabo, R.; Gontean, A. Photovoltaic Cell and Module I-V Characteristic Approximation Using Bézier Curves. Preprints 2018, 2018020014 (doi: 10.20944/preprints201802.0014.v1). Szabo, R.; Gontean, A. Photovoltaic Cell and Module I-V Characteristic Approximation Using Bézier Curves. Preprints 2018, 2018020014 (doi: 10.20944/preprints201802.0014.v1).

Abstract

The aim of this work is to introduce new ways to model the I-V characteristic of a PV cell or PV module using straight lines and Bézier curves. This is a complete novel approach, Bézier curves being previously used mainly for computer graphics. The I-V characteristic is divided in three sections, modeled with lines and a quadratic Bézier curve in the first case and with three cubic Bézier curves in the second case. The result proves to be accurate and relies on the fundamental points usually present in the PV cell datasheets: Voc (the open circuit voltage), Isc (the short circuit current), Vmp (the maximum power corresponding voltage) and Imp (the maximum power corresponding current) and the parasitic resistances Rsh0 (shunt resistance at Isc) and Rs0 (series resistance at Voc). The proposed algorithm completely defines all the implied control points and the error is analyzed. The proposed method is validated for different temperatures and irradiances. The model is finally compared and validated using the least squares fitting method.

Subject Areas

PV cell; I-V characteristic; model; simulation; interpolation; Bézier curve; control points; least squares fitting method

Readers' Comments and Ratings (0)

Leave a public comment
Send a private comment to the author(s)
Rate this article
Views 0
Downloads 0
Comments 0
Metrics 0
Leave a public comment

×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.