| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a motor controller that reduces a torque ripple component when two rotors are simultaneously driven. <P>SOLUTION: When a first rotor is driven with a driving current of a first frequency and a second rotor is driven with a driving current of a second frequency, the motor controller 1 superimposes at least one of currents of frequencies obtained by adding/subtracting the first frequency to/from a frequency twice the second frequency on the driving current for the first rotor, or superimposes at least one of currents of frequencies obtained by adding/subtracting the second frequency to/from a frequency twice the first frequency on the driving current for the second rotor. At least only one of currents of frequencies obtained by adding/subtracting the first frequency to/from the frequency twice the second frequency may be superimposed on the driving current for the first rotor, or at least only one of currents of frequencies obtained by adding/subtracting the second frequency to/from a frequency twice the first frequency may be superimposed on the driving current for the second rotor. <P>COPYRIGHT: (C)2011,JPO&INPIT |
