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Impact of Uncertainties on Resonant Overvoltages
Independent Insulation Group, Ludvika, Sweden.ORCID iD: 0000-0002-0417-6404
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science.ORCID iD: 0000-0003-4074-9529
2019 (English)In: Proceedings of the International Conference on Power Systems Transients 2019 (IPST 2019), International Conference on Power Systems Transients , 2019, article id 19IPST030Conference paper, Published paper (Refereed)
Abstract [en]

A number of changes in the power system have increased the risk for more serious resonances in the harmonic frequency range. The changes also result in an increased uncertainty with regard to the frequency and damping of those resonances. Uncertainties could be related to variations with time, uncertain future developments in the grid, and the modelling of individual components. In this article, a distinction is made between discrete and continuous stochastic uncertainties. This article further investigates uncertainties affecting resonant overvoltages. Several study cases investigating the impact of different uncertainties on resonances and temporary overvoltages, performed in PSCAD, are presented. The results show that some uncertainties may have a significant impact on the resulting impedance characteristics and potentially on the resulting overvoltage levels.

Place, publisher, year, edition, pages
International Conference on Power Systems Transients , 2019. article id 19IPST030
Series
Proceedings of the International Conference on Power Systems Transients (IPST), ISSN 2434-9739
Keywords [en]
electromagnetic transients, PSCAD, resonance, temporary overvoltages
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Electric Power Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-76912OAI: oai:DiVA.org:ltu-76912DiVA, id: diva2:1373863
Conference
International Conference on Power Systems Transients (IPST2019), Perpignan, France, June 17-20, 2019
Funder
Swedish Energy Agency
Note

Finansiär: Svenska kraftnät; Energiforsk – The Swedish Energy Research Center

Available from: 2019-11-28 Created: 2019-11-28 Last updated: 2021-06-10Bibliographically approved

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Lennerhag, OscarBollen, Math H.J.

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CiteExportLink to record
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