Standard Test Method for Electrical Performance of Concentrator Terrestrial Photovoltaic Modules and Systems Under Natural Sunlight

Importancia y uso:

5.1 It is the intent of this test method to provide a recognized procedure for testing and reporting the electrical performance of a photovoltaic concentrator module or system.

5.2 If an inverter is used as part of the system, this test method can provide a dc or ac rating, or both. The dc or ac rating depends on whether the inverter input or output is monitored.

5.3 The test results may be used for comparison among a group of modules or systems from a single source. They also may be used to compare diverse designs, such as products from different manufacturers. Repeated measurements of the same module or system may be used for the study of changes in device performance over a long period of time or as a result of stress testing.

5.4 The test method is limited to modules and systems where the concentrated irradiance on the component cells is greater than 5000 Wm^–2 at E_o. This limitation is necessary because the total irradiance is measured with a radiometer with a field of view less than 6° and because the correlation between the direct irradiance and the power produced decreases with increasing concentrator field of view.

5.5 This test method assumes that the regression equation accurately predicts the concentrator performance as a function of total irradiance with a fixed spectral irradiance, wind speed, and air temperature. The spectral distribution will be seasonal and site specific because of optical air mass, water vapor, aerosols, and other meteorological variables.

Subcomité:

E44.09

Referida por:

E0772-15R21, E2848-13R23

Volúmen:

12.02

Número ICS:

27.160 (Solar energy engineering)

Palabras clave:

concentrator; modules; performance; photovoltaic; rating; reporting; systems; testing;