IEC 60891:2021 光伏器件.测量I-V特性的温度和辐照度校正程序

标准编号：IEC 60891:2021

中文名称：光伏器件.测量I-V特性的温度和辐照度校正程序

英文名称：Photovoltaic devices - Procedures for temperature and irradiance corrections to measured I-V characteristics

发布日期：2021-10-27

标准范围

IEC 60891:2021定义了对光伏（PV）器件的测量I-V（电流-电压）特性（也称为I-V曲线）进行温度和辐照度校正时应遵循的程序。它还定义了用于确定与这些校正相关的因素的程序。IEC 60904-1及其相关子部分规定了PV器件I-V测量的要求。这第三版取消并取代了2009年出版的第二版。与上一版相比，此版本包括以下重大技术变更:-根据应用添加关于应使用哪种校正程序的指南；-介绍适用于温度系数未知的c-Si技术的转换程序4；-在现有程序中引入各种澄清，以提高测量精度并降低测量不确定度；-增加了可用于串联电阻测定的补充方法的信息性附件。

IEC 60891:2021 defines procedures to be followed for temperature and irradiance corrections to the measured I-V (current-voltage) characteristics (also known as I-V curves) of photovoltaic (PV) devices. It also defines the procedures used to determine factors relevant to these corrections. Requirements for I-V measurement of PV devices are laid down in IEC 60904-1 and its relevant subparts.
This third edition cancels and replaces the second edition published in 2009. This edition includes the following significant technical changes with respect to the previous edition:
- adds guidance on which correction procedure shall be used depending on application;
- introduces translation procedure 4 applicable to c-Si technologies with unknown temperature coefficients;
- introduces various clarifications in existing procedures to improve measurement accuracy and reduce measurement uncertainty;
- adds an informative annex for supplementary methods that can be used for series resistance determination.

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