Redundant excitation dual-armature-winding multi-phase flux switching type motor
A technology of double armature windings and magnetic flux switching, applied in electrical components, electromechanical devices, magnetic circuit static parts, etc. System reliability, improved fault tolerance, small moment of inertia
Active Publication Date: 2014-05-07
SOUTHEAST UNIV
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Problems solved by technology
The current conventional single-motor drive system cannot well solve the contradiction between the torque-speed characteristics of the motor and the power demand of the system
If the power is constant, the acceleration performance and maximum speed requirements cannot be met; if the system dynamic performance is pursued, the motor power must be increased, which increases the motor volume and system mass
More importantly, the single-motor system cannot guarantee reliability requirements and enhanced fault-tolerant operation capabilities
Using a multi-motor combination structure will lead to a complex structure of the entire power system, large volume, and high cost
Method used
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Embodiment Construction
[0033] The present invention will be described below with reference to the accompanying drawings.
[0034] The invention discloses a redundant excitation double armature multi-phase magnetic flux switching motor, which comprises a stator, a rotor, an excitation coil, a permanent magnet and an armature coil. The armature winding includes two sets of multiphase armature windings, the armature winding coils are divided into two groups, the first group is set on the stator teeth embedded with permanent magnets to form the first set of multiphase symmetrical armature windings; The second set is sleeved on the stator teeth embedded with magnetic bridges to form a second set of multi-phase symmetrical armature windings. The redundant excitation includes two excitation methods: electric excitation and permanent magnet excitation. The two coil sides of the armature winding coil are placed in two adjacent slots of the set stator teeth, and the excitation winding coil is looped in the O...
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The invention discloses a redundant excitation dual-armature-winding multi-phase flux switching type motor which comprises stator cores (1), rotor cores (2), armature coils (3), permanent magnets (4), excitation coils (5), magnetic bridges (6), stator permanent teeth (7) and stator excitation teeth (8). The redundant excitation dual-armature-winding multi-phase flux switching type motor is characterized in that the stator cores (1) are in shape of circles surrounded by W-shaped core units, each W-shaped core unit comprises two U-shaped magnetic cores and a rectangular magnetic core bridge (6), the rectangular magnetic core bridge (6) fixedly integrates the two U-shaped magnetic cores; the excitation coils (5) are sleeved on the stator magnetic bridges (6) and are sequentially in series connected end to end to form a single-phase integrated excitation winding, and the excitation coils (5) are mutually vertical to the corresponding armature coils (3). The motor disclosed by the invention has the redundant excitation and two sets of mutually independent armature windings, has very high fault-tolerance running capability and largely improves the safety of a motor driving system.
Description
technical field [0001] The invention relates to a motor, in particular to a redundant excitation double armature winding multi-phase magnetic flux switching motor, which belongs to the technical field of motor manufacturing. Background technique [0002] The current single-phase or three-phase motors adopt a structure in which the excitation and armature windings are placed separately, including the rotating excitation electric excitation structure where the rotor places the field winding / the stator places the armature winding, and the rotor places the permanent magnet / stator. Rotary excitation permanent magnet structure of armature winding, rotating armature electric excitation structure of stator placing excitation winding / rotor placing armature winding, rotating armature permanent magnet structure of stator placing permanent magnet / rotor placing armature winding. Except for the rotating permanent magnet excitation type, the above four structures require brushes and (or) c...
Claims
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IPC IPC(8): H02K29/00H02K1/17
Inventor 花为张淦程明
Owner SOUTHEAST UNIV