| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a motor control device capable of suppressing a torque drop affected by motor inductance and the generation of a reactive current. <P>SOLUTION: A phase advance angle operating portion 35 calculates a phase advance angle Φ corresponding to a phase current phase delay angle Φ to the phase of a phase voltage command, based on the function of the angular velocity ω of a brushless motor 4 shown in an equation of Φ=tan<SP>-1</SP>(ω×L/R) and the motor inductance L (and the resistance R of armature winding). An adder 36 adds the phase advance angle Φ to an angle of rotation θ inputted from an angle-of-rotation operating portion 12. The obtained value is outputted to a 2-phase/3-phase converter 21 as the angle of rotation θ' after correction. Consequently, the motor control device is obtainable that is capable of suppressing the torque drop affected by motor inductance and the generation of a reactive current. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
