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Three-phase (6/5)k doubly salient motor structure

A double salient motor, salient pole technology, applied to synchronous motors, electrical components, electromechanical devices, etc. for single-phase current, can solve the problems of unsuitable output smoothness and poor stability, and achieve high stability and pulsation. Small, high power density effect

Inactive Publication Date: 2016-02-03
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the output voltage of the existing doubly salient motor contains a large number of harmonics, so the stability is poor, and it is not suitable for precision industrial fields that have high requirements for output stability.

Method used

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  • Three-phase (6/5)k doubly salient motor structure
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  • Three-phase (6/5)k doubly salient motor structure

Examples

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Embodiment

[0022] Example: Such as figure 1 Shown is the structural representation of the present invention when the value of k is 1 picture , the number of stator poles is 6, namely A1, A2, B1, B2, C1, C2, and the number of rotor poles is 5; the same field winding 1 is distributed in the 6 grooves of the stator 2, and each field winding 1 is connected in series , the polarity of the excitation winding 1 in two adjacent grooves is opposite; each stator pole of the stator 2 is wound with a coil, and the coils wound on A1 and A2 are connected in series as the armature winding A, and the coils wound on B1 and B2 The coils on C1 and C2 are connected in series as armature winding B, and the coils wound on C1 and C2 are connected in series as armature winding C. The stator poles corresponding to each armature winding 3 form a phase, that is, A1 and A2 are one phase, and B1 and B2 are One phase, C1 and C2 are one phase.

[0023] The flux linkage waveform of the above-mentioned embodiment ...

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Abstract

The invention provides a three-phase (6 / 5)k doubly salient motor structure, wherein k is a positive integer; a stator and a rotor are in a salient tooth structure and are formed by stamping silicon steel sheets; the number of stator poles is 6k; the number of rotor poles is 5k; the distance between the stator poles are twice of the arc length of the stator pole; the arc lengths of the rotor poles are equal to or a little greater than those of the stator poles; the motor is characterized in that an exciting winding is arranged in each stator tooth socket; the magnetic flow path of each phase is same; the magnetic linkage and a counter electromotive force waveform are symmetrical; multiple harmonic waves can be removed to obtain the magnetic linkage and the counter electromotive force waveform of a sine; torque ripples are greatly reduced; and the torque density is improved. The motor is novel in structure, reliable in performance, simple to control and suitable for small and medium power generation or electric occasions with relatively high output requirements.

Description

technical field [0001] The invention relates to a motor structure, in particular to a three-phase (6 / 5)k double salient pole motor structure. Background technique [0002] The doubly salient motor is a new type of special motor developed in recent years. The doubly salient motor does not need the participation of the power converter in the power generation state, and the control is more convenient. Therefore, the doubly salient motor is used in aerospace, shipbuilding, The application of green energy and other fields is more and more extensive. In the existing doubly salient pole motor, the stator and rotor are both salient pole cogging structures, and the stator armature winding is a concentrated winding. Among them, in the electric excitation doubly salient pole structure, the excitation winding is also a concentrated winding, which is installed in the stator slot Inside, the windings on the stator teeth opposite in space are connected in series to form a phase, and there...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K19/12H02K29/03
Inventor 侯丽钢孟小利刘建明周倩云杜幼芝丁立伟
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS