MAGNET-EXCITED ROTARY ELECTRIC MACHINE SYSTEM

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PROBLEM TO BE SOLVED : To provide a rotary electric machine system that can use a less antimagnetic magnet other than rare earths and can control a magnetic flux content. SOLUTION : A rotary electric machine having about magnetic poles of permanent magnets 23 alternating flux barriers 24 for reducing the magnetic field strength of an alternating magnetic flux from an armature coil 16 while transmitting direct magnetic fluxes from the permanent magnets 23 can use a less antimagnetic magnet other than rare earths because of the reduced alternating magnetic field strength applied to the permanent magnets 23. A rotary electric machine device has variably magnetizing control magnets in magnetic salient poles spaced from the armature and can change the state of magnetization via a pulse exciting magnetic flux from the armature coil 16 to provide a variable magnetic flux content. The alternating flux barriers 24 comprise alternately laminated nonmagnetic conductive layers and magnetic layers, and are arranged such that the permanent magnets 23 contacts with the magnetic layers. COPYRIGHT : (C)2012, JPO&INPIT