C702 THE RAPID TRANSIT SYSTEM THAT ACHIEVES HIGHER PERFORMANCE WITH LOWER LIFE-CYCLE COSTS

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  • SONE Satoru
    Department of Electrical Engineering, Kogakuin University
  • TAKAGI Ryo
    Research Fellow, The University of Birmingham

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In the age of traction system made of inverter and ac traction motors, distributed traction system with pure electric brake of regenerative mode has been recognised very advantageous. This paper proposes a new system as the lowest life-cycle cost system for high performance rapid transit, a new architecture and optimum parameters of power feeding system, and a new running method of trains. In Japan, these components of this proposal, i.e. pure electric brake and various countermeasures of reducing loss of regeneration have been already popular but not as yet the new running method for better utilisation of the equipment and for lower life-cycle cost. One example of what are proposed in this paper will be made as Tsukuba Express, which is under construction as the most modern commuter railway in Greater Tokyo area.

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