Optimal capacity and positioning of stationary supercapacitors for light rail vehicle systems

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Authors

Colleges, School and Institutes

External organisations

  • School of Electronic, Electrical and Computer Engineering, University of Birmingham

Abstract

This paper presents a criterion for the design of the optimal capacities and locations of stationary supercapacitors for light rail vehicles. The design criterion is based on a single train simulator, which uses an electrical and mechanical model of a light rail vehicle travelling across an electrified track with stationary supercapacitors. The train power and current are obtained by the characteristics of the traction system. The optimisation problem takes into account the isoperimetric constraint that the average power supplied by supercapacitors during every cycle is nil. The optimisation process minimises the difference between the train voltage and the nominal line voltage, the electrical energy consumption of the train and the storage capacity. The suggested procedure gives information on how the storage capacity is affected by the position of supercapacitors along the track. The results obtained show that the minimal capacitances are obtained when supercapacitors are close to the substations for each section of the electrified line. Finally, the paper presents a simple comparison between practical designs of supercapacitors for each section of the line using commercially available modules.

Details

Original languageEnglish
Title of host publication2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion, SPEEDAM 2014
Publication statusPublished - 1 Jan 2014
Event2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion, SPEEDAM 2014 - Ischia, United Kingdom
Duration: 18 Jun 201420 Jun 2014

Conference

Conference2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion, SPEEDAM 2014
CountryUnited Kingdom
CityIschia
Period18/06/1420/06/14

Keywords

  • energy storages, light rail vehicles, optimisation problems, supercapacitors