| 摘要 |
Temperature estimation apparatus of motor, electrical power generating system with the temperature estimation appratus and temperature estimation method of motor. The temperature estimation apparatus of motor provided in the invention possesses the components as following: magnetic flux density specified mechanism for specifying the magnetic flux density of a permanent magnet; a storage portion for storing the reference magnetic flux density specified by the magnetic flux density specified mechanism under the known temperature of the permanent magnet; and a temperature estimation portion for determining the temperature of the permanent magnet at a specific time based on the magnetic flux density specified by the magnetic flux density specified mechanism, the known temperature and the reference magnetic flux density. Thereby the information required for estimating the temperature of the permanent magnet is minimized. |
