Indoor measurement of photovoltaic device characteristics at varying irradiance, temperature and spectrum for energy rating

Indoor measurement of photovoltaic device characteristics at varying irradiance, temperature and spectrum for energy rating
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室内测量不同辐照度、温度和光谱下的光伏器件特性,以实现能源评级

DOI:
10.1088/0957-0233/21/11/115701
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发表时间:
2010
影响因子:
2.4
通讯作者:
Bliss M
Bliss M
中科院分区:
工程技术3区
文献类型:
--
作者:
Bliss M

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据报道,第一个用于光伏 (PV) 能源评级的三维性能矩阵利用基于 LED 的新型能源评级太阳能模拟器。设备特性是在室内不同辐照度 (G)、温度 (T) 和光谱 (E) 下测量的。这为建立更准确的测量系统来预测光伏设备的发电量提供了可能性,特别是对于宽带隙太阳能电池等具有高光谱依赖性的设备,因为它们考虑了光的光谱变化。简要描述了所使用的基于 LED 的太阳模拟器的主要方面。本文开发并详细介绍了一种测量方法,该方法考虑了当前可实现光谱中的缺陷。晶体硅太阳能电池的测量结果用于演示测量方法。给出了测量系统的不确定度分析,得出在 765 W m− 2 辐照度下最大功率测量的总体绝对不确定度为 4.3%(覆盖因子 k= 2),并有进一步改进的空间。
The first three-dimensional performance matrix for use in photovoltaic (PV) energy rating is reported utilizing a novel energy rating solar simulator based on LEDs. Device characteristics are measured indoors at varying irradiance (G), temperature (T) and spectrum (E). This opens the possibility for a more accurate measurement system for energy yield prediction of PV devices, especially for devices with high spectral dependence such as wide bandgap solar cells as they take into account spectral changes in the light. The main aspects of the LED-based solar simulator used are briefly described. A measurement method is developed and detailed in the paper, which takes into account the current imperfections in the achievable spectrum. Measurement results for a crystalline silicon solar cell are used to demonstrate the measurement approach. An uncertainty analysis of the measurement system is given, resulting in an overall absolute uncertainty of 4.3%(coverage factor k= 2) in maximum power measurements at 765 W m− 2 irradiance with scope for further improvements.
光伏电池的线性测试(海报)
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