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Fast estimation of aggregated results of many load flow solutions in electric traction systems
KTH, Skolan för elektro- och systemteknik (EES), Elektriska energisystem.ORCID-id: 0000-0003-2109-060X
2008 (Engelska)Ingår i: COMPUTERS IN RAILWAYS XI, WIT Press, 2008, Vol. 103, s. 411-423Konferensbidrag, Publicerat paper (Övrigt vetenskapligt)
Abstract [en]

Transports on rail are increasing and major railway infrastructure investments are expected. An important part of this infrastructure is the railway power supply system. The future railway power demands are naturally not known for certain. This means investment planning for an uncertain future. The more remote the uncertain future, the greater the amount of scenarios that have to be considered. Large numbers of scenarios make time demanding (some tens of minutes, each) simulations less attractive and simplifications more so. The aim of this paper is to present a fast approximator that uses aggregated traction system information as inputs and outputs. This facilitates studies of many future railway power system loading scenarios, combined with different power system configurations, for investment planning analysis. Since the electrical and mechanical relations governing an electric traction system are quite intricate, an approximator based on neural networks (NN), is applied. This paper presents a design suggestion for a NN estimating power system caused limits on active and reactive power load, i.e., limits on the levels of train traffic.

Ort, förlag, år, upplaga, sidor
WIT Press, 2008. Vol. 103, s. 411-423
Serie
WIT TRANSACTIONS ON THE BUILT ENVIRONMENT, ISSN 1746-4498 ; 103
Nyckelord [en]
railway, neural networks, load flow
Nationell ämneskategori
Maskinteknik
Identifikatorer
URN: urn:nbn:se:kth:diva-36826DOI: 10.2495/CR080411ISI: 000260454600041Scopus ID: 2-s2.0-58849104391ISBN: 978-1-84564-126-9 (tryckt)OAI: oai:DiVA.org:kth-36826DiVA, id: diva2:431230
Konferens
11th International Conference on Computer System Design and Operation in the Railway and other Transit Systems Toledo, SPAIN, SEP 15-17, 2008
Anmärkning
QC 20110718Tillgänglig från: 2012-01-17 Skapad: 2011-07-15 Senast uppdaterad: 2012-01-17Bibliografiskt granskad

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Abrahamsson, LarsSöder, Lennart

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