Standard Test Method for Determination of the Spectral Mismatch Parameter Between a Photovoltaic Device and a Photovoltaic Reference Cell

Importancia y uso:

5.1 The calculated error in the photovoltaic device current determined from the spectral mismatch parameter can be used to determine if a measurement will be within specified limits before the actual measurement is performed.

5.2 The spectral mismatch parameter also provides a means of correcting the error in the measured device current due to spectral mismatch.

5.2.1 The spectral mismatch parameter is formulated as the fractional error in the short-circuit current due to spectral and temperature differences.

5.2.2 Error due to spectral mismatch is corrected by multiplying a reference cell’s measured short-circuit current by M , a technique used in Test Methods E948 and E1036.

5.3 Because all spectral quantities appear in both the numerator and the denominator in the calculation of the spectral mismatch parameter (see 8.1), multiplicative calibration errors cancel, and therefore only relative quantities are needed (although absolute spectral quantities may be used if available).

5.4 Temperature-dependent spectral mismatch is a more accurate method to correct photovoltaic current measurements compared with fixed-value temperature coefficients.3

Subcomité:

E44.09

Referida por:

E0927-19, E1021-15R25, G0113-24, G0214-23, E1362-15R19, E2236-10R19, E1036-15R19, E1125-16R20, E0948-16R25, G0130-12R20, E2848-13R23

Volúmen:

12.02

Número ICS:

27.160 (Solar energy engineering)

Palabras clave:

cell; mismatch; photovoltaic; reference; solar; spectral; testing;