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IET Electrical Systems in Transportation

Issue 1 • March 2012

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Displaying Results 1 - 4 of 4
  • Improved electro-geometric model for estimating lightning outage rate of catenary

    Publication Year: 2012, Page(s):1 - 8
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (565 KB)

    This study proposes a new method for estimating lightning outage rate of catenary based on an improved electro-geometric model (EGM), considering the effects of ground obliquity and earthing span. A new method is presented by establishing an improved EGM of catenary based on striking distance theory. The model is based on Eriksson's equation for attractive radius of lightning on overhead horizonta... View full abstract»

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  • Efficient energy managing control for electrical scooters

    Publication Year: 2012, Page(s):9 - 17
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (768 KB)

    This study presents a generalised energy recharge control (ERC) scheme for electrical scooters (ESs), which includes a central control unit, a battery recharge-control unit, a voltage boost-control unit, a brake-control unit, a motor and a sealed rechargeable battery. There are three recharge modes provided: (i) direct low-side driving circuit recharge mode, (ii) voltage boost recharge mode and (i... View full abstract»

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  • Effort to formulate voltage modulation constraints in ship-electrical systems with pulsed loads

    Publication Year: 2012, Page(s):18 - 28
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (795 KB)

    One of the most significant power supply quality problems in ship electric networks is `voltage and frequency modulation`. It is caused by the operation of certain electric loads, known as `pulsed loads`, which require regularly or randomly repeated high power for short time intervals. To the best of the authors` knowledge, no well-based theoretical analysis of the phenomenon exists, while regardi... View full abstract»

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  • Optimal cable assembly for reducing conducted electromagnetic interference in the traction system

    Publication Year: 2012, Page(s):29 - 37
    Cited by:  Papers (4)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (800 KB)

    The present work deals with a method of modelling a traction system in PSpice with the consideration for optimal cable arrangements for reducing conducted electromagnetic interference. Multiconductor transmission line (MTL) theory is adopted to model the cable which connects the pulse-width modulation (PWM) source inverter and the motor. A simple decoupling transformation method is proposed and us... View full abstract»

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Aims & Scope

IET Electrical Systems in Transportation is aimed at all aspects of electrical power systems in modern transport applications including generation, storage, distribution and utilisation.

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