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   Loss reduction by optimised power intake  evaluated  
Some electric vehicles are equipped with a control tool regulating the power intake according to distance from substation. The system aims at avoiding negative effects on power electronics through high currents. As a side effect catenary losses are reduced.
Technology field: Optimisation of traction technologies
open main section General information
close main section General criteria
  close sub-section Status of development: in use
    Technology is a standard on new electric stock.
  Time horizon for broad application: now
    (no details available)
  Expected technological development: (no data)
    (no details available)
    Motivation:
   

Current limitation

High currents are a problem for on-board power electronics.

Reduction of traction losses is just a side effect.
  Benefits (other than environmental): medium
   

Current limitation

Excessively high currents have a negative effect on traction power electronics.
  Barriers: medium
    Retrofit of old vehicles is not feasible.
    Success factors:
    (no details available)
  Applicability for railway segments: high
    Type of traction:  electric - DC, electric - AC
    Type of transportation:  passenger - main lines, passenger - high speed, passenger - regional lines, passenger - suburban lines, freight
    (no details available)
    Grade of diffusion into railway markets:
  Diffusion into relevant segment of fleet: (no data)
  Share of newly purchased stock: (no data)
    (no details available)
  Market potential (railways): high
    (no details available)
    Example:
    (no details available)
open main section Environmental criteria
open main section Economic criteria
no data available Application outside railway sector (this technology is railway specific)
open main section Overall rating
References / Links:
Attachments:
Related projects:
Contact persons:
 date created: 2002-10-09
 
 
© UIC - International Union of Railways 2003
 
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