| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that, when device constants of phases of a motor 10 are varied, amplitude values of currents of the phases are varied and there is the risk of incurring a torque ripple in the motor as a result.SOLUTION: In a command voltage setting section 24, a command voltage vd*, vq* is set as an open loop manipulated variable to be defined as a torque command value Trq*. The command voltage vd*, vq* is converted into command voltages vu*, vv*, vw* of three phases by a three-phase conversion section 26 and the amplitude values thereof are then corrected by multipliers 82, 84, 86. The correction is performed in accordance with a manipulated variable for performing feedback control on absolute values of phase currents iu, iv, iw detected based on a bus current IDC into absolute values of command currents iu*, iv*, iw*. |
