| 摘要 |
A motor/generator has a stator provided with a plurality of coils (6), a first rotor (3) provided with a fixed number of magnetic poles, and a second rotor (4) provided with fewer magnetic poles than the first rotor (3). A current of the composite wave form is supplied from an inverter (12) to the coils (6) in response to a signal generated by a control unit (15). The control unit (15) is programmed to calculate a wave form of a first current flowing through the coils (6) which generates a rotating magnetic field which is synchronous with a magnetic field produced by the first rotor (3), and calculate a wave form of a second current flowing through the coils (6) which generates a rotating magnetic field which is synchronous with a magnetic field produced by the second rotor (4). The microprocessor (15) is further programmed to calculate a wave form of a correcting current which, at a position where a specific magnetic pole in the first rotor (3) and a pole of the second rotor (4)with the same polarity face each other, increases the density of the magnetic flux passing through the specific magnetic pole and generate the signal which realizes a composite wave form comprising wave forms of the first, second and correcting currents.
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