Cell chip temperature measurements in different operation regimes of HCPV modules

Rumyantsev, V.D.; Chekalin, Alexander V.; Davidyuk, N. Yu.; Malevskiy, D. A.; Pokrovskiy, P. V.; Sadchikov, N. A.; Panchak, Alexander N.

doi:10.1063/1.4822217

Cited by 13 publications

(22 citation statements)

References 5 publications

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“…Indeed, the cells change their temperature very quickly and uncontrollably when illumination starts [4]. Proposed in the present work method eliminates this uncertainty allowing for determination of the real overheating for cells in a concentrator module.…”

Section: Introductionmentioning

confidence: 97%

“…Functional diagram of the measurement equipment: electronic board ensures I-V measurements in the memory oscilloscope regime, regulating at the same time and switching off in a fast manner the external load [4]; heater, which imitates "non-photoactive" illumination; mechanical shutter, which ensures fast opening the cell photoactive area for illumination.…”

Section: Figurementioning

confidence: 99%

“…A simple procedure for determining overheating temperature of the p-n junction area in a SC with respect to the ambient temperature in regime of connection to an electrical load has been proposed in [4]. The procedure consists in measuring the V OC value just after the moment of a fast switching from the operational mode to the open circuit mode.…”

Section: Introductionmentioning

confidence: 99%

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Temperature of solar cells with regard to photoactive and non-photoactive light absorption in concentrator PV modules

Rumyantsev¹,

Chekalin²,

Davidyuk³

et al. 2014

AIP Conference Proceedings

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Abstract.A new method has recently been proposed by us for accurate measurement of the solar cell temperature in any operational regime, in particular, at a maximum power point (MPP) of the I-V curve ( - . In the present work, we have considered a practical case, when a solar cell is heated not only by absorption of light incident upon its surface (called "photoactive" absorption of power), but also by heat transferred from structural elements surrounding the cell and heated by absorption of direct or diffused sunlight ("non-photoactive" absorption of power with respect to a solar cell). This process takes place in any concentrator module with non-ideal concentrators. Low overheating temperature of the p-n junction (or p-n junctions in a multijunction cell) is a cumulative parameter characterizing the quality of a solar module by the factor of heat removal effectiveness and, at the same time, by the factor of low "non-photoactive" losses. MPP

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Section: Introductionmentioning

confidence: 97%

Section: Figurementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Temperature of solar cells with regard to photoactive and non-photoactive light absorption in concentrator PV modules

Rumyantsev¹,

Chekalin²,

Davidyuk³

et al. 2014

AIP Conference Proceedings

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“…The modules were subjected to sun illumination in laboratory conditions through a window to exclude many uncertainties associated with normal outdoor experiments. The measurement procedure for cell temperature evaluation is described in details in [3]. Fig.…”

Section: Cell Temperature Evaluationmentioning

confidence: 99%

“…In such modules, the front glass sheet plays a role of a base element for silicone-on-glass (SoG) Fresnel lenses concentrating sunlight, and rear glass sheet is a base element for arrangement of cells with their heat spreaders. It has been shown in [3,4] that the rear glass may play a role of an integrated cover glass for all solar cells, if the cells are placed on the outer side of the rear glass sheet and the lamination technology is applied for their hermetical sealing.…”

Section: Introductionmentioning

confidence: 99%

Progress in developing HCPV modules of SMALFOC-design

Rumyantsev¹,

Андреев²,

Chekalin³

et al. 2013

AIP Conference Proceedings

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“In-field” cell temperature evaluation in solar modules through time-dependent open circuit voltage measurements

Rumyantsev

Chekalin

Davidyuk

et al. 2015

Prog. Photovolt: Res. Appl.

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A method for the evaluation of p–n junction cell temperature in PV modules operating in the maximum power point (MPP) mode has been proposed. The method does not require specialized equipment and (for the concentrator modules) the data on the open circuit (OC) voltage temperature coefficients measured under pulse illumination. It consists of measuring several open circuit voltage magnitudes together with temperature measurements on the external module surface near one of the cells. In this procedure, a fast transition from MPP to OC operational mode is carried out, during which a time‐dependent voltage measurement is carried out with the help of a memory oscilloscope. A “reference” OC voltage magnitude in a “cold” module (a condition, as if the cells are kept at ambient temperature) is obtained by calculations, so that there is no necessity in a fast mechanical shuttering of the module aperture area. In the case of the concentrator modules, the module OC voltage temperature coefficient can be measured, if heat sinking process is artificially modified during outdoor measurements. Copyright © 2015 John Wiley & Sons, Ltd.

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Cell chip temperature measurements in different operation regimes of HCPV modules

Cited by 13 publications

References 5 publications

Temperature of solar cells with regard to photoactive and non-photoactive light absorption in concentrator PV modules

Temperature of solar cells with regard to photoactive and non-photoactive light absorption in concentrator PV modules

Progress in developing HCPV modules of SMALFOC-design

“In-field” cell temperature evaluation in solar modules through time-dependent open circuit voltage measurements

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