Recovery of inter-row shading losses using differential power-processing submodule DC–DC converters

Doubleday, Kate; Choi, Beomseok; Maksimovic, Dragan; Deline, Chris; Olalla, Carlos

doi:10.1016/j.solener.2016.06.013

Title: Recovery of inter-row shading losses using differential power-processing submodule DC–DC converters

Abstract

Large commercial photovoltaic (PV) systems can experience regular and predictable energy loss due to both inter-row shading and reduced diffuse irradiance in tightly spaced arrays. This article investigates the advantages of replacing bypass diodes with submodule-integrated DC-DC converters (subMICs) to mitigate these losses. Yearly simulations of commercial-scale PV systems were conducted considering a range of row-to-row pitches. In the limit case of array spacing (unity ground coverage), subMICs can confer a 7% increase in annual energy output and peak energy density (kW h/m²). Simulation results are based on efficiency assumptions experimentally confirmed by prototype submodule differential power-processing converters.

Authors:

Doubleday, Kate ^[1]; Choi, Beomseok ^[1]; Maksimovic, Dragan ^[1];

^[2]; Olalla, Carlos ^[3]

Univ. of Colorado, Boulder, CO (United States)
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Rovira i Virgili Univ. (Spain)

Publication Date:: Fri Jun 17 00:00:00 EDT 2016

Research Org.:: National Renewable Energy Laboratory (NREL), Golden, CO (United States)

Sponsoring Org.:: USDOE Advanced Research Projects Agency - Energy (ARPA-E); European Union (EU)

OSTI Identifier:: 1339516

Alternate Identifier(s):: OSTI ID: 1344947

Report Number(s):: NREL/JA-5J00-65132
Journal ID: ISSN 0038-092X

Grant/Contract Number:: AC36-08GO28308; AR0000216; 626117

Resource Type:: Accepted Manuscript

Journal Name:: Solar Energy

Additional Journal Information:: Journal Volume: 135; Journal Issue: C; Journal ID: ISSN 0038-092X

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 14 SOLAR ENERGY; photovoltaic systems; power electronics; partial shading; energy conversion; power system simulation; MLPE; subMICs; distributed power electronics

Citation Formats


                    Doubleday, Kate, Choi, Beomseok, Maksimovic, Dragan, Deline, Chris, and Olalla, Carlos. Recovery of inter-row shading losses using differential power-processing submodule DC–DC converters.  United States: N. p., 2016. 
Web.  doi:10.1016/j.solener.2016.06.013.

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                    Doubleday, Kate, Choi, Beomseok, Maksimovic, Dragan, Deline, Chris, & Olalla, Carlos. Recovery of inter-row shading losses using differential power-processing submodule DC–DC converters.  United States.  https://doi.org/10.1016/j.solener.2016.06.013

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                    Doubleday, Kate, Choi, Beomseok, Maksimovic, Dragan, Deline, Chris, and Olalla, Carlos. Fri .  
"Recovery of inter-row shading losses using differential power-processing submodule DC–DC converters".  United States.  https://doi.org/10.1016/j.solener.2016.06.013.  https://www.osti.gov/servlets/purl/1339516.

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@article{osti_1339516,

  title        = {Recovery of inter-row shading losses using differential power-processing submodule DC–DC converters},

  author       = {Doubleday, Kate and Choi, Beomseok and Maksimovic, Dragan and Deline, Chris and Olalla, Carlos},

  abstractNote = {Large commercial photovoltaic (PV) systems can experience regular and predictable energy loss due to both inter-row shading and reduced diffuse irradiance in tightly spaced arrays. This article investigates the advantages of replacing bypass diodes with submodule-integrated DC-DC converters (subMICs) to mitigate these losses. Yearly simulations of commercial-scale PV systems were conducted considering a range of row-to-row pitches. In the limit case of array spacing (unity ground coverage), subMICs can confer a 7% increase in annual energy output and peak energy density (kW h/m2). Simulation results are based on efficiency assumptions experimentally confirmed by prototype submodule differential power-processing converters.},

  doi          = {10.1016/j.solener.2016.06.013},

  journal      = {Solar Energy},

  number       = C,

  volume       = 135,

  place        = {United States},

  year         = {Fri Jun 17 00:00:00 EDT 2016},

  month        = {Fri Jun 17 00:00:00 EDT 2016}

}

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Works referenced in this record:

Shadow effect of adjacent solar collectors in large scale systems
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Appelbaum, J.; Bany, J.
Solar Energy, Vol. 23, Issue 6
DOI: 10.1016/0038-092X(79)90073-2

Improvement and validation of a model for photovoltaic array performance
journal, January 2006

De Soto, W.; Klein, S. A.; Beckman, W. A.
Solar Energy, Vol. 80, Issue 1
DOI: 10.1016/j.solener.2005.06.010

Control of Submodule Integrated Converters in the Isolated-Port Differential Power-Processing Photovoltaic Architecture
journal, December 2014

Levron, Yoash; Clement, Daniel Russel
IEEE Journal of Emerging and Selected Topics in Power Electronics, Vol. 2, Issue 4
DOI: 10.1109/JESTPE.2014.2326972

Characterization of Power Optimizer Potential to Increase Energy Capture in Photovoltaic Systems Operating Under Nonuniform Conditions
journal, June 2013

MacAlpine, Sara M.; Erickson, Robert W.; Brandemuehl, Michael J.
IEEE Transactions on Power Electronics, Vol. 28, Issue 6
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Soiling losses for solar photovoltaic systems in California
journal, September 2013

Mejia, Felipe A.; Kleissl, Jan
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Architectures and Control of Submodule Integrated DC–DC Converters for Photovoltaic Applications
journal, June 2013

Olalla, C.; Clement, D.; Rodriguez, M.
IEEE Transactions on Power Electronics, Vol. 28, Issue 6
DOI: 10.1109/TPEL.2012.2219073

Performance of Mismatched PV Systems With Submodule Integrated Converters
journal, January 2014

Olalla, Carlos; Deline, Chris; Maksimovic, Dragan
IEEE Journal of Photovoltaics, Vol. 4, Issue 1
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Performance of Power-Limited Differential Power Processing Architectures in Mismatched PV Systems
journal, February 2015

Olalla, Carlos; Deline, Christopher; Clement, Daniel
IEEE Transactions on Power Electronics, Vol. 30, Issue 2
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Passias, Dimitrios; Källbäck, Bengt
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Pilawa-Podgurski, Robert C. N.; Perreault, David J.
IEEE Transactions on Power Electronics, Vol. 28, Issue 6
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Shenoy, Pradeep S.; Kim, Katherine A.; Johnson, Brian B.
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Works referencing / citing this record:

Vertical Bifacial Solar Farms: Physics, Design, and Global Optimization
text, January 2017

Khan, M. Ryyan; Hanna, Amir; Sun, Xingshu
arXiv
DOI: 10.48550/arxiv.1704.08630

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Similar Records

Title: Recovery of inter-row shading losses using differential power-processing submodule DC–DC converters

Abstract

Citation Formats

Shadow effect of adjacent solar collectors in large scale systems journal, January 1979

Improvement and validation of a model for photovoltaic array performance journal, January 2006

Control of Submodule Integrated Converters in the Isolated-Port Differential Power-Processing Photovoltaic Architecture journal, December 2014

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Performance of Power-Limited Differential Power Processing Architectures in Mismatched PV Systems
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Differential Power Processing for Increased Energy Production and Reliability of Photovoltaic Systems
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Dependence of diffuse light blocking on the ground cover ratio for stationary PV arrays
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