Experimental Set-Up to Evaluate the Degradation of the Optical Components of a CPV Module

Bengoechea, J.; Ezquer, Mikel; Petrina, Iñigo; Lagunas, A.R.; Dimroth, Frank; Kurtz, Sarah; Sala, Gabriel; Bett, Andreas W.

doi:10.1063/1.3658300

Cited by 8 publications

(6 citation statements)

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“…Three lenses were made in PMMA, three lenses were made in SOG, all lens sets were sent in parallel to the laboratories in Refs. [2,3,4], and measured according to the Method available there.…”

Section: Setupmentioning

confidence: 99%

Technical specification IEC TS 62989:2018 – Primary optics for concentrator photovoltaic systems

Arndt¹,

Askins²,

Bengoechea³

et al. 2018

AIP Conference Proceedings

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The first edition of the Technical Specification (TS) on Primary Optics for Concentrator Photovoltaic (CPV) Systems, IEC TS 62989:2018, has been published by the International Electrotechnical Commission (IEC), on March 8th, 2018. TS 62989 covers aspects related to the primary optics including: product identification, optical characteristics, mechanical characteristics, materials, (design) geometry, and visual appearance. This paper focuses on the key aspects of the norm, including optical performance, in order to promote the awareness and use of the standard. We describe the three methods intended to measure the key optical characteristics of the primary elements, i.e. focal spot size and optical efficiency, by using the encircled energy. The three methods are using different light sources, optical components and receiver sensors, but yielded very similar results in a round robin test. This justifies the continued use of all three methods. The use of a website (opticstests.pbworks.com) for documentation of discussions and references was novel to the standard development. The website proved to be useful for the introduction of new members of the group. The website helped to keep track of changes to the document as well as the required actions of the project team.

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Section: Setupmentioning

confidence: 99%

Technical specification IEC TS 62989:2018 – Primary optics for concentrator photovoltaic systems

Arndt¹,

Askins²,

Bengoechea³

et al. 2018

AIP Conference Proceedings

Self Cite

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“…The spectral characteristics of the light source seem to differ for almost every setup. Monochromatic light sources of several wavelengths are reported in literature [14][15][16]18] as well as several kinds of polychromatic light sources [19], which makes the comparison of measurement results difficult Mostly four types of sensors are used to measure the irradiation in the focal plane. Some setups use CCD sensors [16], others use a diffusing screen in the focal plane and a camera to take an image of the screen [17,[20][21][22][23].…”

Section: Characterization Of Flux Distribution In the Focal Planementioning

confidence: 99%

“…Because a diffusing screen can be smaller than a CCD camera and is not as sensible to high temperatures a screen may be placed in positions that are not suitable for CCD sensors, but using a diffusing screen results in a loss of spatial and magnitude resolution due to the diffusor structure and light scattered back onto the sample [22,23]. Other setups directly use a solar cell [21,24] or a spectrometer [19,25] as detector. These only allow measuring the optical efficiency as a single number unless a scanning light source is used or the focal plane is scanned with a small aperture in front of the detector.…”

Section: Characterization Of Flux Distribution In the Focal Planementioning

confidence: 99%

Characterization of Optics for Concentrating Photovoltaic and Solar Thermal Applications

Hornung

Kiefel

Heimsath

et al. 2014

Light, Energy and the Environment

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“…A straightforward way is the use of spectroradiometers (Bengoechea et al, 2011), but it has inherent difficulties for CPV optics that we will detail here. Firstly, the aforementioned sources of errors related to non-linearity and non-uniformity of the sensor are worsened here because the spectroradiometer probe is usually smaller than the light spot.…”

Section: Wavelength Resolved Efficiencymentioning

confidence: 99%

Assessment of the optical efficiency of a primary lens to be used in a CPV system

et al. 2016

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This article summarizes experimental methods to evaluate the performance and to assess the efficiency of a lens that will be used as primary optics in a concentrating photovoltaic system comprising multijunction solar cells. The methods are classified into two groups: those intended to quantify the transmission losses and those that estimate the size and shape of the light spot. In addition, the optical efficiency definition is reviewed and a systematic procedure to evaluate it is proposed.

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Experimental Set-Up to Evaluate the Degradation of the Optical Components of a CPV Module

Cited by 8 publications

References 0 publications

Technical specification IEC TS 62989:2018 – Primary optics for concentrator photovoltaic systems

Technical specification IEC TS 62989:2018 – Primary optics for concentrator photovoltaic systems

Characterization of Optics for Concentrating Photovoltaic and Solar Thermal Applications

Assessment of the optical efficiency of a primary lens to be used in a CPV system

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