| 摘要 |
A control device (16) for a rotating electrical machine (12) having a stator coil and a rotor magnet (24), and a rotating electrical machine drive system including the control device are provided. The control device includes: a counter-electromotive voltage calculation unit (62) that calculates a counter-electromotive voltage that is generated in the stator coil during operation of the rotating electrical machine (12); a refrigerant temperature acquisition unit (64) that acquires a temperature of refrigerant that cools the rotating electrical machine (12); a characteristic correction unit (66) that corrects a counter-electromotive voltage characteristic, which defines a correlation between a temperature of the rotor magnet (24) and the counter-electromotive voltage, on the basis of the calculated counter-electromotive voltage and the acquired temperature of refrigerant; and a temperature estimating unit (68) that estimates the temperature of the rotor magnet (24) using the corrected counter-electromotive voltage characteristic. |
