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Transient Stability of a Rotary Frequency Converter fed railway, interconnected with a parallel low frequency high voltage transmission system.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science. (Elkraft)
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science.ORCID iD: 0000-0003-2109-060X
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science.ORCID iD: 0000-0003-4074-9529
2018 (English)In: WIT Transactions on the Built Environment, ISSN 1746-4498, E-ISSN 1743-3509, Vol. 181Article in journal (Refereed) Accepted
Abstract [en]

Using low frequency High Voltage Transmission systems (HV-T) in parallel with the catenary systemstrengthens the railway system by reducing the total impedance of the railway grid. A consequence ofthe reduced impedance is that converter stations are electrically closer to each other.Inside a converter station, different types of Rotary Frequency Converters (RFCs) are used. It is not wellexplored how different RFCs behaves and interacts with each other during and after a large disturbance,like a short circuit.The dynamics of an RFC are modelled by using the Andersson-Fouad model of a synchronous machine.The study presented in this paper investigates interactions inside and between converter stations, withdifferent types of RFC, for an HV-T system in parallel with a Booster Transformer catenary system.The numerical simulation results show, for instance, that the main power oscillation take place inside aconverter station with mixed configuration of RFC type after fault clearance.

Place, publisher, year, edition, pages
2018. Vol. 181
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Electric Power Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-70287OAI: oai:DiVA.org:ltu-70287DiVA, id: diva2:1237490
Conference
Comprail 201816th International Conference on Railway Engineering Design & Operation, Lisbon, Portugal,2-4 July 20182 - 4 July 2018Lisbon, Portugal
Funder
Swedish Transport AdministrationAvailable from: 2018-08-09 Created: 2018-08-09 Last updated: 2018-08-15

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Laury, JohnAbrahamsson, LarsBollen, Math

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