Measuring degradation rates of PV systems without irradiance data

被引：11

作者：

Cronin, Alex ^{[1
]}

Pulver, Stephen ^{[1
]}

Cormode, Daniel ^{[1
]}

Jordan, Dirk ^{[2
]}

Kurtz, Sarah ^{[2
]}

Smith, Ryan ^{[2
]}

机构：

[1] Univ Arizona, Tucson, AZ 85721 USA

[2] Natl Renewable Energy Lab, Golden, CO USA

来源：

PROGRESS IN PHOTOVOLTAICS | 2014年 / 22卷 / 08期

关键词：

degradation; yield; photovoltaic test yard; irradiance; PERFORMANCE; RELIABILITY;

D O I：

10.1002/pip.2310

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

A method to report photovoltaic (PV) system degradation rates without using irradiance data is demonstrated. First, a set of relative degradation rates are determined by comparing daily AC final yields from a group of PV systems relative to the average final yield of all the PV systems. Then, the difference between relative and absolute degradation rates is estimated using a Bayesian statistical analysis. This approach is verified by comparing to methods that utilize irradiance data. This approach is significant because PV systems are often deployed without irradiance sensors, so the analysis method described here may enable measurements of degradation using data that were previously thought to be unsuitable for degradation studies. Copyright (C) 2013 John Wiley & Sons, Ltd.

引用

页码：851 / 862

页数：12

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