| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve a problem that it is necessary to make an inverter in multi-phases when creating magnetic flux that corresponds to each rotor, and when the number of the phases is increased corresponding to the rotors, the number of switch elements is increased, thus causing the complication of control. <P>SOLUTION: This current control method of a synchronous motor is applied to an inverter having three phases or four phases that drives the synchronous motor constituted of a plurality of the rotors (R1, R2) each having different pole algorithms, or one rotor (24) having a magnetic flux generation member that sums magnetic fluxes corresponding to a plurality of the different pole algorithms and generates them, and one stator (St1, 21). The method sums a plurality of current fields that correspond to pole algorithms for constituting the plurality of rotors, or to pole algorithms for constituting the one rotor, and controls the inverter so that a composite current by which the plurality of rotors or the one rotor can be rotated is imparted to the stator. By this constitution, since the current is imparted to the rotor so as to be rotatable by summing the plurality of current fields that correspond to the pole algorithms for constituting the rotor, the number of the phases of the inverter can be reduced compared with a conventional synchronous motor having two rotors and one stator, and a motor drive system can be reduced in size as a whole. <P>COPYRIGHT: (C)2007,JPO&INPIT |
