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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
  open sub-section Status of development: in use
  Time horizon for broad application: now
  Expected technological development: (no data)
  Benefits (other than environmental): medium
  Barriers: medium
  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
    Grade of diffusion into railway markets:
  Diffusion into relevant segment of fleet: (no data)
  Share of newly purchased stock: (no data)
  Market potential (railways): high
close main section Environmental criteria
  close sub-section Impacts on energy efficiency:
  Energy efficiency potential for single vehicle: < 2%
  Energy efficiency potential throughout fleet: < 1%
    No data on saving effect are available. Given that catenary losses account for about 10% of the energy drawn from substations, and the fact that the control tool regulates the current only within a small range, the overall saving potential will be less than 2%.
  Other environmental impacts: neutral
    (no details available)
open main section Economic criteria
no data available Application outside railway sector (this technology is railway specific)
close main section Overall rating
  open sub-section Overall potential: interesting
  Time horizon: short-term
References / Links:
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 date created: 2002-10-09
 
 
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