| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotary electric machine of a secondary excitation induction machine type, capable of realizing a motor structure which can use a secondary excitation with one power supply, and reducing a cost and a size.SOLUTION: A rotary electric machine M comprises: a stator 100 having a driving stator coil 101 that generates a magnetic flux by an AC power source; an outer rotor 200 having a driving rotor coil 201 that interlinks the magnetic flux of the stator side generated in the driving stator coil and rotating by a torque generated between the magnetic flux of the rotor side generated in the driving rotor coil and the magnetic flux of the stator side generated therein; a DC excitation stator coil 102 that generates the magnetic flux by supplying a DC current obtained by converting the AC current supplied to the driving stator coil; and an inner rotor 300 having an AC induction rotor coil 301 that allows the AC current to excite by using the magnetic flux generated in the DC excitation stator coil. The AC current generated in the DC induction rotor coil of the inner rotor is supplied to the driving rotor coil of the outer rotor.SELECTED DRAWING: Figure 1 |
