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Numerical procedures and their practical application in PV modules analyses. Part 1, Air mass

Rodziewicz Tadeusz, Rajfur Małgorzata

Opto-Electronics Review

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2019

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Vol. 27, No. 1

39--57

EN

The subject of the article is aspects of PV modules and cells measurement, with the use of natural sunlight. A light source is an important element during calibration and measurements of solar cells and modules. All designers of artificial light sources try to recreate natural light using so called measurement tables. The correctly performed measurement, i.e. meeting all the appropriate atmospheric conditions, guarantees obtaining the result with the use of a reference spectrum. The article has two main aims. The first aim of the article is to answer the question asked earlier - if the sunlight spectrum registered in appropriate conditions is so good that it serves as the reference spectrum - then, in practice, during measurements carried out with its use, certain problems occur regarding the correct measurement results or their interpretation. The second aim regards presenting detailed numeric procedures in order to enable readers to associate air mass with geographical coordinates and Local Solar Time of their study/laboratory location. Moreover, having the data from their local meteorological station, they will be able to estimate the occurrence of the measurement spectral error of the tested cell/module not only from the group referred to in the article but also for others, for which they have a dedicated characteristics of spectral response.

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Numerical procedures and their practical application in PV modules’ analyses. Part 2, Useful fractions and APE

Rodziewicz Tadeusz, Rajfur Małgorzata

Opto-Electronics Review

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2019

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Vol. 27, No. 2

149--160

EN

The article regards aspects of PV modules tested with the use of natural sunlight. The analysis of spectral structure of solar energy resources in southern Poland, carried out on the basis of meteorological data originating from SolarLab PW Wrocław and AGH Kraków, Poland [1] was used in the article. It is a continuation of the article: Analysis of solar energy resources in southern Poland for photovoltaic applications [1], describing the method to determine spectral parameters of average photon energy (APE) and useful fraction (UF) with the use of a solar radiation spectrum simulator. This article, however, includes an experimental presentation of their impact on PV conversion of modules with different absorbers. Theory and practice of the measurements were described with the use of spectral parameters such as: UF, APE. Their influence on the efficiency of modules’ photovoltaic conversion with various spectral characteristics of absorbers was presented. The most recent methods described, which characterise the structure of solar energy resources such as annual distributions of APE and UF, have not been commonly used yet in Poland and other countries, even though they most precisely define adjustment of the spectral factor to the selected PV module.

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Stan obecny sektora energetyki słonecznej w Polsce i prognoza jej wykorzystania w przyszłości

Kalda G., Smorąg A.

Zeszyty Naukowe Politechniki Rzeszowskiej. Budownictwo i Inżynieria Środowiska

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2012

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z. 59, nr 4

59--68

PL

W artykule przedstawiono ogólne pojęcia związane ze stanem sektora energetyki słonecznej w Polsce oraz z finansowaniem i pomocą publiczną programów wykorzystania kolektorów słonecznych. Dokonano porównania polskiego sektora energetyki słonecznej z innymi krajami UE i prognozy wykorzystania energii słonecznej w przyszłości.

EN

The paper presents general terms relating to conditions of solar power area in Poland, financing and public support for using solar collectors in the country. It’s been compared the Polish solar power area with the other Europe Union countries, and also considered prediction of future using solar power.