PROBLEM TO BE SOLVED: To provide a power train capable of reducing a rotor loss due to an effect of Joule and Foucault.SOLUTION: A power train for a transportation vehicle includes; a motor provided with a shaft, a stator, and a rotor; and a power supply system which accepts DC input voltage and sends out multi-phase voltage to the motor. A system has a sensor for degree of modulation equal to one which is acquired by dividing voltage amplitude of each phase of the motor by the DC input voltage, and a sensor for rotational speed of the rotor. The power train includes means for making the degree of modulation change, that is adapted so as to decrease the degree of modulation for degree of modulation in a state where there is no means for making the degree of modulation change when the rotational speed of the rotor belongs to a first section having a value which is less than a prescribed transition value, and that is adapted so as to increase the degree of modulation for the degree of modulation in the state where there is no means for making the degree of modulation change when the rotational speed of the rotor belongs to a second section having a value which is more than the prescribed transition value.SELECTED DRAWING: Figure 1

    【課題】ジュールおよびフーコーの効果による回転子の損失を低減することを可能にするパワートレインを提案すること。【解決手段】輸送車両用のこのパワートレインは、シャフト、固定子および回転子を備える電動機と、直流入力電圧を受け取って電動機に多相電圧を送出する電力供給システムとを備え、このシステムは、電動機の各相の電圧振幅を直流入力電圧で割ったものに等しい変調度、および回転子の回転速度のセンサを有する。このパワートレインは、変調度を変化させるための手段であって、回転子の回転速度が所定の遷移値を下回る値の第1の区間に属するとき、変調度を変化させるための手段がない状態の変調度に対して変調度を減少するように適合され、回転子の回転速度が所定の遷移値を上回る値の第2の区間に属するとき、変調度を変化させるための手段がない状態の変調度に対して変調度を増加するように適合される手段を含む。【選択図】図1


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    Title :

    POWER TRAIN FOR TRANSPORTATION VEHICLE, SPECIFICALLY RAIL VEHICLE, AND METHOD FOR CONTROLLING POWER TRAIN


    Additional title:

    輸送車両用、具体的にはレール車両用のパワートレイン、および同パワートレインを制御する方法


    Contributors:

    Publication date :

    2016-11-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern



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