Magnetic field modulation hybrid excitation motor and multi-working-wave design method thereof
A hybrid excitation motor and magnetic field modulation technology, applied in the fields of rail transit and electric vehicles, to reduce the difficulty of processing, eliminate slip rings and armatures, and reduce process requirements
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[0084] Example 1
[0085] figure 1 It is a schematic structural diagram of a hybrid excitation motor according to an embodiment of the present invention. Such as figure 1 As shown, the motor is a three-phase motor, including a stator (1) and a rotor (2), which are installed coaxially, and the stator (1) is sleeved in the rotor. The material of the stator core is the same as that of the rotor (2), and is made of laminated silicon steel sheets. There is a groove on the surface of each stator tooth (6), which splits the end of the stator tooth (6) into two modulating teeth (7). The excitation winding (4) is placed in the groove of the stator tooth. The excitation adopts double-layer concentration. It is wound on two adjacent modulating teeth (7) split by different stator teeth (6). The armature winding (3) is placed in the open slot of the stator core and is wound on the stator teeth ( 6) On. Among them, the field winding (4) is energized with direct current, and the direction ...
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[0094] Example 2
[0095] In another embodiment of the invention figure 2 As shown, compared with this embodiment, the structure of the stator and rotor of the motor is exactly the same, but the mounting positions of the armature winding (3), the field winding (4) and the permanent magnet (5) are different. In another embodiment, the armature The winding (3) is placed in the groove of the stator teeth, and the double-layer concentrated winding is wound on two adjacent modulation teeth split by different stator teeth; the field winding (4) is placed in the open slot of the stator core, The double layer is concentratedly wound on a stator tooth (6); the magnetizing direction of the permanent magnet (5) is radial magnetization, and the placement position is: two modulated teeth (6) split from the same stator tooth (6) The permanent magnets (5) on 7) have the same polarity, and the permanent magnets (5) on two adjacent modulation teeth (7) split by different stator teeth (6) have op...
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