| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an operation method capable of operating a superconductive rotating machine in a self-supporting stable manner. <P>SOLUTION: A superconductive rotating machine comprises: a rotator having superconductive squirrel-cage winding in which a rotor bar and an end ring are formed by a superconducting wire rod. When a rotational state of a rotator is shifted from a first rotational state of a first torque and a first number of rotations to a second rotational state of a second torque and a second number of rotations that are the same or different from the first ones, control to increase a ratio of applied voltage and its frequency to primary winding of the superconductive rotating machine is performed, and a current more than a critical current is caused to flow in the superconductive squirrel-cage winding of the rotator in the first rotational state so as to be once in a magnetic flux flow state. When the magnetic flux flow state is realized, the ratio of the applied voltage and the frequency is set to a value corresponding to a second rotational state so that shift is made to the second rotational state. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
