Statistical Approach for Determining the Sandia Array Performance Model Coefficients that Considers String-Level Mismatch
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States). Photovoltaics & Distributed Systems
Commonly used performance models, such as PVsyst, Sandia Array Performance Model (SAPM), and PV LIB, treat the PV array as being constructed of identical modules. Each of the models attempts to account for mismatch losses by applying a simple percent reduction factor to the overall estimated power. The present work attempted to reduce uncertainty of mismatch losses by determining a representative set of performance coefficients for the SAPM that were developed from a characterization of a sample of modules. This approach was compared with current practice, where only a single module’s thermal and electrical properties are testing. However, the results indicate that minimal to no improvements in model predictions were achieved.
- Research Organization:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Solar Energy Technologies Office (EE-4S)
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 1431464
- Report Number(s):
- SAND2016--8638; 647119
- Country of Publication:
- United States
- Language:
- English
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