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Optimal PowerFlow (OPF) Model with Unified AC-DC Load Flow and Optimal Commitmentfor an AC-catenary Railway Power Supply System (RPSS) fed by aHigh Voltage DC (HVDC) transmission line
KTH, Tidigare Institutioner, Elkraftteknik.ORCID-id: 0000-0003-2109-060X
KTH, Skolan för elektro- och systemteknik (EES), Elektrisk energiomvandling.ORCID-id: 0000-0001-7330-146X
KTH, Skolan för elektro- och systemteknik (EES), Elektriska energisystem.ORCID-id: 0000-0002-8189-2420
(Engelska)Manuskript (preprint) (Övrigt vetenskapligt)
Abstract [en]

In this paper an alternative railway power systems design based on an HVDC feeder is studied. The HVDC feeder is connected to the catenary by converters. Such an HVDC line is also appropriate for DC-fed railways and AC-fed railways working at public frequency.

A unit commitment optimal power flow model has been developed and is applied on a test system. In this paper, the model is presented in detail. The model, in the form of an MINLP program, uses unified AC-DC power flow to minimize the entire railway power system losses.

Simulations of the proposed solution show clear advantages regarding transmission losses and voltages compared to conventional systems, especially for cases with long distances between feeding points to the catenary, and when there are substantial amounts of regeneration from the trains.

Nationell ämneskategori
Annan elektroteknik och elektronik
Identifikatorer
URN: urn:nbn:se:kth:diva-124638OAI: oai:DiVA.org:kth-124638DiVA, id: diva2:637912
Anmärkning

QC 20131010

Tillgänglig från: 2013-07-23 Skapad: 2013-07-23 Senast uppdaterad: 2013-10-10Bibliografiskt granskad

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Abrahamsson, LarsÖstlund, StefanSöder, Lennart

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Abrahamsson, LarsÖstlund, StefanSöder, Lennart
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ElkraftteknikElektrisk energiomvandlingElektriska energisystem
Annan elektroteknik och elektronik

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