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Stochastic Assessment of Voltage Unbalance due to Single-Phase-Connected Solar Power
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science.
Technische Universität Dresden.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science.ORCID iD: 0000-0002-4004-0352
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science.ORCID iD: 0000-0003-4074-9529
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Number of Authors: 5
2016 (English)In: 2016 17th International Conference on Harmonics and Quality of Power, Piscataway, NJ, 2016, 95-103 p., 7783353Conference paper, Published paper (Refereed)
Abstract [en]

A stochastic method is presented in this paper to estimate the future voltage unbalance in a low-voltage distribution network with high-penetration of single-phase photovoltaic inverters (PVIs). Location and phase allocation of the PVIs are considered as input parameters for the stochastic simulation. The method has been applied to three different low-voltage networks: two in Sweden and one in Germany. In the Swedish networks, for 6-kW single-phase PVIs, it is likely that the contribution from single-phase photovoltaic inverters to the voltage unbalance exceeds 1%. The 2% value is unlikely to be exceeded. In the German network, for 4.6-kW single-phase PVIs the voltage unbalance is between 1.35% and 2.62%. The risk of high voltage unbalance can be reduced by a combination of controlled distribution over the phases and reduction of the maximum size for a single-phase PVI

Place, publisher, year, edition, pages
Piscataway, NJ, 2016. 95-103 p., 7783353
Series
International Conference on Harmonics and Quality of Power, ISSN 1540-6008
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Electric Power Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-60521DOI: 10.1109/ICHQP.2016.7783353ISI: 000391424200017Scopus ID: 2-s2.0-85009508224ISBN: 9781509037926 (electronic)OAI: oai:DiVA.org:ltu-60521DiVA: diva2:1047413
Conference
17th International Conference on Harmonics and Quality of Power (ICHQP), Belo Horizonte, Brasil, 16-19 October 2016
Available from: 2016-11-17 Created: 2016-11-17 Last updated: 2017-10-19Bibliographically approved

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CiteExportLink to record
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