| 摘要 |
PROBLEM TO BE SOLVED: To provide a technology capable of appropriately executing primary magnetic flux control even in the case where an estimated value and an actual value are deviated regarding a resistance value of an armature winding wire of a rotary electric machine comprising a magnetic field system and an armature.SOLUTION: A motor control device 1 comprises a first coordinate transformation section 101, a first computation section 102, a second coordinate transformation section 104 and an integrator 106. The first coordinate transformation section 101 transforms a three-phase current [I] into a current [i] in a δc-γc rotary coordinate system. The first computation section 102 corrects a resistance value of an armature winding wire and determines a voltage command value [v*] in the δc-γc rotary coordinate system. The second coordinate transformation section 104 performs coordinate transformation on the voltage command value [v*] into a voltage command value [V*], in another coordinate system, of a voltage applied to a rotary motor 3. The integrator 106 computes a phase &thetas; of an axis δc to an axis α on the basis of a command value ω* of a rotational angular velocity. |
