高速新幹線電車の空転・再粘着制御　各駆動軸電動機個別制御方式の場合

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タイトル別名
  • Wheel Slip and Re-adhesion Control for High Speed Shinkansen Train. For Individual Motor Control System.
  • コウソク シンカンセン デンシャ ノ クウテン サイ ネンチャク セイギョ カ
  • For Individual Motor Control System
  • 各駆動軸電動機個別制御方式の場合

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Induction motor drive with inverter control, which can reduce the total weight of the system, has been introduced to the Shinkansen trains in order to achieve high speed transportation.<br>The individual-motor-control type 953 train, which is a part of the STAR21 prototype Shinkansen for high speed experimental run, was used for measurement running, in which we observed wheel slip and adjusted re-adhesion control parameters at the speed of 200 to 300km/h. It was found that the slip detection within one percent speed difference from the reference, was possible by adopting sensitive detecting method. Quick torque reduction by sudden reduction of motor current was necessary for re-adhesion control, and one-second waiting time before re-applying current was also inevitable. For re-applying the current, an exponential curve with four-second time constant was proved to be effective.<br>By these tests, high speed performance and re-adhesion characteristics improvement by adjusting control parameters were obtained. To the next step, for example creep control, which utilizes fine continuous slip, should be investigated in order to keep enough torque minimizing current reduction during re-adhesion control.

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