BS EN IEC 60904-9:2020 pdf download.Photovoltaic devices Part 9: Classification of solar simulator characteristics.
Note 2 to entry: Various types of solar simulators are commonly used to determine the current-voltage (I-v)characteristics of PV devices as defined in lEC 60904-1. Generally, these work as single lamp systems where thePV device is placed in the designated test area or multiple lamp systems, which are based on the superposition oflight cones. Examples include:
a) Pulsed single lamp or multilamp solar simulator operated in a dark room with typically several metres distancebetween light source(s) and PV device. Internal reflections from walls may be suppressed by use of baffles.b) Pulsed solar simulator operated in a casing or in tabletop configuration with typically less than 1 m distance
between light source(s) and PV device. Difuser plates and reflectors may be used to achieve the specifiedspatial uniformity of irradiance.
c) Steady state single lamp or multilamp solar simulator operated in a dark room with typically several metres
distance between light source(s) and PV device. Internal reflections from walls may be suppressed by use ofbaffles.
d) LED based multilamp solar simulator operated with typically less than 1 m distance between light source(s)
and PV device.
Note 3 to entry: Pulsed solar simulators can be further subdivided into long pulse systems acquiring the total l-vcharacteristic or a section of the l-V characteristic during one flash and systems acquiring one -V data point perflash.Several lamp types may be used in a multilamp solar simulator. These instruments are spectrally tuneableinstruments, which work with superposition of different spectral irradiances，emitted from various lamp types. Ifavailable, in addition to the rating, the reported test data should be referred to for evaluation of the applicability ofthe solar simulator for a specific use or testing purposes.
Note 4 to entry: Multilamp systems can be further subdivided into systems, where each lamp irradiates the totaltest area,and systems, where a single lamp just irradiates a part of the test area.
Besides the light source, the lamp power supply and the optics, also the l-V data acquisition, the electronic loadand the operating software may be an integral part of the solar simulator.Requirements for the relatedmeasurement technique are included in other parts of the lEC 60904 series.
