Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Evaluation and Selection for Availability Improvement of Frequency Converters in Electrified Railway
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Operation, Maintenance and Acoustics.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Operation, Maintenance and Acoustics.
Department of Electrical Engineering, Indian Institute of Technology, Bombay, International Institute of Information Technology, P-14, Pune Infotech Park, Phase-1, Hinjawadi.
2014 (English)In: International Journal of Power and Energy Systems, ISSN 1078-3466, E-ISSN 1710-2243, Vol. 34, no 4, p. 162-172Article in journal (Refereed) Published
Abstract [en]

Railway traction power supply systems (TPSSs) that work at low frequencies contain frequency converters (FCs) that convert the adequate power from a public grid to a traction grid. Availability and system importance analysis is a key aspect of overall system performance. It identifies the weakest areas of a system and indicates where resources must be invested to achieve maximum improvement. Availability analysis of FC types is crucial to reduce outages of traction power that lead to traffic delays and cancellations due to unavailability of FCs. The aim of this study is to rank FC types on the basis of priority of needs for reliability and maintainability improvement so that the availability can be enhanced. The proposed approach involves collection of outage data by calculating performance measures, and then these measures are compared via a comparative chart. Thereafter, opinions of experts are collected and aggregated through linguistic variables, and the FC types are then identified using analytic hierarchy process. Reliability, availability and maintainability (RAM) have been used as the criteria to identify the FC types. In addition to power sharing, capacity and service factors are considered to be productivity measures. Probabilistic performance indexes are used to measure availability, maintainability and productivity, whereas the mean number of outages is used as a reliability index.

Place, publisher, year, edition, pages
2014. Vol. 34, no 4, p. 162-172
National Category
Other Civil Engineering
Research subject
Operation and Maintenance
Identifiers
URN: urn:nbn:se:ltu:diva-7703DOI: 10.2316/Journal.203.2014.4.203-0108Local ID: 61dd7614-fa32-47ad-b4f9-f40ad1fd1fb2OAI: oai:DiVA.org:ltu-7703DiVA: diva2:980593
Note

Validerad; 2015; Nivå 1; 20141208 (yasahm)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full text

Search in DiVA

By author/editor
Mahmood, Yasser AhmedAhmadi, Alireza
By organisation
Operation, Maintenance and Acoustics
In the same journal
International Journal of Power and Energy Systems
Other Civil Engineering

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 87 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf