| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide the controller of a motor performing field weakening control by altering the phase difference between two rotors arranged concentrically by a simple arrangement regardless of the number of revolutions of the motor. <P>SOLUTION: The controller of a motor comprises a section 91 for computing a field weakening current command value ΔId_vol based on an outer rotor 12 of a motor 1, a radius Vp_target of a target voltage circle, a command value Vd_c of a d-axis voltage and a specified value Vq_c of a q-axis armature, a section 94 for determining a command value θd_c of a rotor phase difference dependent on the field weakening current command value ΔId_vol, and a section 60 for determining a command value Id_c of a d-axis current and a command value Iq_c of a q-axis current based on the command value θd_c of the rotor phase difference and a torque command value Tr_c. <P>COPYRIGHT: (C)2008,JPO&INPIT |
