Irradiance estimation for a smart PV array

Henry Braun; Shwetang Peshin; Andreas Spanias; Cihan Tepedelenlioglu; Mahesh Banavar; Girish Kalyanasundaram; Devarajan Srinivasan

doi:10.1109/ECCE.2015.7309811

Irradiance estimation for a smart PV array

Henry Braun, Shwetang Peshin, Andreas Spanias, Cihan Tepedelenlioglu, Mahesh Banavar, Girish Kalyanasundaram, Devarajan Srinivasan

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

3 Scopus citations

Abstract

Electrical mismatch between modules in a PV array due to partial shading causes energy losses beyond the shaded module. This occurs because unshaded modules are forced to operate away from their maximum power point in order to compensate for the shading. Here we present an irradiance estimation algorithm for use in a mismatch mitigation system. Irradiance is estimated using measurements of module voltage, current, and back surface temperature. These estimates may be used to optimize an array's electrical configuration and reduce the mismatch losses caused by partial shading. Propagation of error in the estimation is examined; we find that accuracy is sufficient for use in the proposed mismatch mitigation application.

Original language	English (US)
Title of host publication	2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	1095-1099
Number of pages	5
ISBN (Electronic)	9781467371506
DOIs	https://doi.org/10.1109/ECCE.2015.7309811
State	Published - Oct 27 2015
Event	7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015 - Montreal, Canada Duration: Sep 20 2015 → Sep 24 2015

Publication series

Name	2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015

Other

Other	7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015
Country/Territory	Canada
City	Montreal
Period	9/20/15 → 9/24/15

ASJC Scopus subject areas

Energy Engineering and Power Technology
Electrical and Electronic Engineering

Access to Document

10.1109/ECCE.2015.7309811

Cite this

Braun, H., Peshin, S., Spanias, A., Tepedelenlioglu, C., Banavar, M., Kalyanasundaram, G., & Srinivasan, D. (2015). Irradiance estimation for a smart PV array. In 2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015 (pp. 1095-1099). Article 7309811 (2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ECCE.2015.7309811

Irradiance estimation for a smart PV array. / Braun, Henry; Peshin, Shwetang; Spanias, Andreas et al.
2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015. Institute of Electrical and Electronics Engineers Inc., 2015. p. 1095-1099 7309811 (2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Braun, H, Peshin, S, Spanias, A , Tepedelenlioglu, C, Banavar, M, Kalyanasundaram, G & Srinivasan, D 2015, Irradiance estimation for a smart PV array. in 2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015., 7309811, 2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015, Institute of Electrical and Electronics Engineers Inc., pp. 1095-1099, 7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015, Montreal, Canada, 9/20/15. https://doi.org/10.1109/ECCE.2015.7309811

Braun H, Peshin S, Spanias A , Tepedelenlioglu C, Banavar M, Kalyanasundaram G et al. Irradiance estimation for a smart PV array. In 2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015. Institute of Electrical and Electronics Engineers Inc. 2015. p. 1095-1099. 7309811. (2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015). doi: 10.1109/ECCE.2015.7309811

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abstract = "Electrical mismatch between modules in a PV array due to partial shading causes energy losses beyond the shaded module. This occurs because unshaded modules are forced to operate away from their maximum power point in order to compensate for the shading. Here we present an irradiance estimation algorithm for use in a mismatch mitigation system. Irradiance is estimated using measurements of module voltage, current, and back surface temperature. These estimates may be used to optimize an array's electrical configuration and reduce the mismatch losses caused by partial shading. Propagation of error in the estimation is examined; we find that accuracy is sufficient for use in the proposed mismatch mitigation application.",

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AB - Electrical mismatch between modules in a PV array due to partial shading causes energy losses beyond the shaded module. This occurs because unshaded modules are forced to operate away from their maximum power point in order to compensate for the shading. Here we present an irradiance estimation algorithm for use in a mismatch mitigation system. Irradiance is estimated using measurements of module voltage, current, and back surface temperature. These estimates may be used to optimize an array's electrical configuration and reduce the mismatch losses caused by partial shading. Propagation of error in the estimation is examined; we find that accuracy is sufficient for use in the proposed mismatch mitigation application.

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Irradiance estimation for a smart PV array

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