Remote Performance Check for Grid Connected PV Systems Using Satellite Data

Wiemken, Edo; Toggweiler, P.; Dijk, Vincent van; Heinemann, Detlev; Beyer, Hans Georg

doi:10.4324/9781315074405-143

Cited by 1 publication

(1 citation statement)

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“…The PR25 (which considers the influence of the operating temperature of the photovoltaic cells), presents difficulties in estimating the maximum output power of the generator photovoltaic (PVG), evidence of this is presented in Reise et al (2020) where, the absolute error resulting from the analysis of one day between the actual measured and the estimated power is 3 times greater than that estimated from the mathematical model of a diode. This work presents a procedure for the quantification of the degradation index of Photovoltaic Generators, from the relationship between the expected power and the real power for different conditions of temperature and solar radiation.…”

Section: Developingmentioning

confidence: 99%

Procedure for the quantification of the degradation index of Photovoltaic Generators

Roger¹,

Emilio²,

Rubén³

2021

JLMA

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A procedure is presented for the quantification of the degradation index of Photovoltaic Generators, based on the quantification of the operational losses inherent in the system, which allows maintaining the nominal operating conditions and by the warranty terms of the photovoltaic generator. A photovoltaic generator connected to the network with a nominal power of 7.5 kWp, installed in the Solar Energy Research Center of Santiago de Cuba, is used to evaluate and validate the procedure. The starting point is the mathematical model of the photovoltaic generator, then the operational losses of the photovoltaic generator are quantified and the mathematical model is adjusted to real conditions, through a polynomial adjustment. The results obtained show that the photovoltaic generator presents deviations in terms of the nominal power generation, because the operational losses are 7% with respect to the values given by the manufacturer.

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Section: Developingmentioning

confidence: 99%