International Electrotechnical Commission
Glossary

ENlinearity 
amount of deviation from a straight line function of a performance parameter such as short-circuit electric current or open circuit voltage versus an environmental variable such as irradiance or temperature

NOTE 1 Usually, linearity is expressed as a normalised standard deviation of the line slope

NOTE 2 PV cell, module and system performance evaluations frequently employ linear equations to translate performance from one set of temperature and irradiance conditions to another. Linearity is evaluated by a process in which the best straight-line function is mathematically determined from a set of data points, and then the variation of the data points from this line used in calculations that determines the linearity


TC/SC:82Terms     Info     Publications
Published in:IEC 61836, ed. 2.0 (2007-12) Terms     Info
Reference number:3.4.38

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