MAGNETIC FLUX VARIABLE DYNAMO-ELECTRIC MACHINE AND MAGNETIC FLUX VARIABLE METHOD IN MAGNETIC FLUX VARIABLE DYNAMO-ELECTRIC MACHINE

摘要

PROBLEM TO BE SOLVED: To suppress the value of a current being fed to a stator core in order to change the magnetic flux of a permanent magnet, in a variable magnetic flux dynamo-electric machine.SOLUTION: A vehicle 10 mounting a variable magnetic flux dynamo-electric machine comprises: a variable magnetic flux dynamo-electric machine 14; a magnet heating section feeding a d-axis AC current for generating an eddy current in a permanent magnet, by forming a magnetic field having a strength equal to or lower than that of a magnetic field at which the permanent magnet of a rotor in the dynamo-electric machine starts demagnetization, to the stator winding of the dynamo-electric machine; and a magnetizing section feeding a d-axis magnetization current for forming a magnetic field having a strength higher than that of a magnetic field where magnetization is performed to the stator winding. The magnetizing section changes the d-axis magnetization current depending on the running state of the vehicle 10.