| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce the energy loss of a rotor under an axial deflection control and to enable a power storage for a long time to be made by raising the storage efficiency of the power by reducing the energy loss of the rotor under the axial deflection control in a flywheel device. <P>SOLUTION: A method for controlling the axial deflection of the rotor includes conducting of a motor operated control and the power generation control of the rotor by the current control of the same winding, and radial direction controlling of a rotary shaft by controlling a current value flowing to each winding by this current control. According to this bearing control, the bearing control can be performed by using current required for the motor operation or the power generation, the current used only for the bearing control can be dispensed, and the energy loss of the rotor in association with the bearing control can be reduced. Further, since this axial deflection control is performed without contact with the rotor, the energy loss due to a friction can be abolished as well. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
