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Auxiliary tooth type harmonic induction excitation motor

A technology of excitation motor and auxiliary teeth, applied in the direction of magnetic circuit, electric components, electrical components, etc., can solve the problem of large volume of the motor system, and achieve the effect of increasing the volume

Active Publication Date: 2020-08-25
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this approach would make the entire motor system too bulky

Method used

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  • Auxiliary tooth type harmonic induction excitation motor
  • Auxiliary tooth type harmonic induction excitation motor
  • Auxiliary tooth type harmonic induction excitation motor

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Experimental program
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Embodiment Construction

[0023] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0024] The present invention designs an auxiliary tooth type harmonic induction excitation motor, such as figure 1 As shown, taking the stator with 36 slots and the rotor with 4 poles as an example, auxiliary rotor cores 5-1, 5-2, 5-3, and 5-4 are installed on the rotor core 2, and each auxiliary rotor core is U-shaped. (It can also be set as a semicircle, etc.), the axial length of the auxiliary rotor core and the axial length of the rotor core 2 can be completely equal or not equal. The linearization compensation method of the bridge switch in the auxiliary rotor core unbalanced bridge insulation monitoring circuit is connected to the rotor core 2 through non-magnetic connection units 4-1, 4-2, 4-3, 4-4. Auxiliary harmonic induction windings 8-1, 8-2, 8-3, 8-4, 8-5, 8-6, 8-7, 8-8 are wound on each auxiliary rotor iron core. The rotor te...

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Abstract

The invention discloses an auxiliary tooth type harmonic induction excitation motor. An auxiliary rotor iron core is arranged between adjacent rotor teeth; the auxiliary rotor iron core is directly connected with the rotor iron core or is connected with the rotor iron core through a non-magnetic connection unit; when the auxiliary rotor iron core is directly connected with the rotor iron core, a magnetic isolation bridge is cut out at the critical position of the auxiliary rotor iron core and the rotor iron core, an auxiliary harmonic induction winding is wound on the auxiliary rotor iron core, a rotor direct-current excitation winding is wound on rotor teeth of the rotor iron core, and three-phase power windings are installed in stator grooves. By arranging the auxiliary winding iron core, the non-magnetic connection unit or the magnetic isolation bridge, brushless excitation of the rotor excitation motor is achieved, an exciter does not need to be additionally arranged, and the sizeof a motor system cannot be obviously increased.

Description

technical field [0001] The invention belongs to the field of motors, in particular to a harmonic induction excitation motor. Background technique [0002] The traditional rotor excitation type electric excitation motor has the advantages of wide voltage regulation range and high positive waveform limit. In order to achieve brushless excitation, the most common method is to use a three-stage brushless excitation method, add an exciter, and supply power to the main excitation winding of the motor through a rotating rectifier. However, this approach would make the entire motor system too bulky. Contents of the invention [0003] In order to solve the technical problems mentioned above in the background technology, the present invention proposes an auxiliary tooth type harmonic induction excitation motor. [0004] In order to realize above-mentioned technical purpose, technical scheme of the present invention is: [0005] An auxiliary tooth type harmonic induction excitatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/24H02K1/16H02K3/20
CPCH02K1/165H02K1/24H02K3/20
Inventor 朱姝姝胡耀华姜仁华刘闯王凯
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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