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Title: Outlier identification in outdoor measurement data - effects of different strategies on the performance descriptors of photovoltaic modules
Authors: Zhu, Jiang
Betts, Thomas R.
Gottschalg, Ralph
Issue Date: 2009
Publisher: PVSAT / © The authors
Citation: ZHU, J., BETTS, T.R. and GOTTSCHALG, R., 2009. Outlier identification in outdoor measurement data - effects of different strategies on the performance descriptors of photovoltaic modules. 5th Photovoltaic Science Application and Technology (PVSAT-5) Conference and Exhibition, 1-3 April 2009, Glyndŵr University, Wrexham.
Abstract: Outdoor measurement campaigns of PV module performance are normally affected by a relatively large number of outliers. The aim of this paper is to develop a statistically sound approach of obtaining a dataset that allows one to analyse continuously monitored devices. This paper uses ISC as a self-reference parameter to measure the incident irradiance on the module, which largely reduces the error due to spectral and angular effects. The outlier identification procedure is based on statistical distribution analysis of different performance descriptors and it assures 0.99 confidence level and the same skewness for the remaining data. This approach can be applied to whole datasets as well as for data in specific irradiance-temperature bins. The developed methodology will be used to analyze outdoor data from different devices at different locations with reduced uncertainty.
Description: This conference paper was presented at PVSAT-5: http://www.pvsat.org.uk/.
URI: https://dspace.lboro.ac.uk/2134/5208
Appears in Collections:Conference Papers and Contributions (Electronic, Electrical and Systems Engineering)
Conference Papers and Contributions (CREST)

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