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Duplex winding asynchronous motor

A technology of asynchronous motors and double windings, applied in the field of electric motors, can solve the problems of unsatisfactory speed regulation effect and high cost of AC frequency conversion speed regulation, and achieve the convenience of energy-saving transformation, the effect of energy-saving transformation and energy-saving effect, and reduce the cost

Inactive Publication Date: 2008-03-05
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of high cost of motor AC frequency conversion speed regulation and unsatisfactory speed regulation effect of other motor speed regulation methods, the present invention provides an asynchronous motor with simple structure, low cost and easy speed regulation——double-winding asynchronous motor electric motor

Method used

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  • Duplex winding asynchronous motor

Examples

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Embodiment 1

[0012] The stator of this embodiment has 48 slots, and the stator winding is a quadrupole winding, as shown in FIG. 1 .

[0013] A double-winding asynchronous motor includes a stator and a rotor. There are main windings and auxiliary windings arranged in the stator. The three-phase windings Wa1, Wb1, Wc1 of the main winding and the three-phase windings Wa2, Wb2, Wc2 of the auxiliary winding are two sets of single-layer arrangements. The three-phase stator winding, the number of coil elements contained in the main winding and the auxiliary winding are the same, and the windings of the same phase of the main and auxiliary windings are arranged at a distance of 360° from each other (except for two-pole motors, they are all spaced at 360°); the main The three-phase winding Wa1, Wb1, and Wc1 of the winding form a delta connection; the first end of the A-phase winding Wa2 of the auxiliary winding is connected to the first end of the A-phase winding Wa1 of the main winding, and the en...

Embodiment 2

[0015] The stator of this embodiment has 36 slots, and the stator winding is a two-pole winding, as shown in FIG. 2 .

[0016]A double-winding asynchronous motor includes a stator and a rotor. There are main windings and auxiliary windings arranged in the stator. The three-phase windings Wa1, Wb1, Wc1 of the main winding and the three-phase windings Wa2, Wb2, Wc2 of the auxiliary winding are two sets of single-layer arrangements. The number of coil elements contained in the main winding and the auxiliary winding is the same, and the windings of the same phase of the main and auxiliary windings are arranged at a distance of 180° from each other (180° for only two-pole motors); the three phases of the main winding The phase windings Wa1, Wb1, and Wc1 form a delta connection; the first end of the A-phase winding Wa2 of the auxiliary winding is connected to the first end of the A-phase winding Wa1 of the main winding, and the end is connected to the C-phase winding Wc1 of the main ...

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Abstract

This invention relates to a double-winding asynchronous motor including a stator and a rotor, in which, a master winding and a sub-winding are set in the stator, the three-phase windings of the master one and the sub-one are two sets of stator windings arrayed in single-layer, coil elements contained in them are same, and the windings in a same phase of them are arrayed in 180deg. or 360deg. potential phase angle and the three-phase windings of the main one form a triangle, branches formed by windings of the sub-winding serial with a 2-way thyristor and a capacitor are parallel at both ends of windings of a selected phase of the master one.

Description

technical field [0001] The invention relates to a motor, in particular to a double-winding asynchronous motor. Background technique [0002] The current AC frequency conversion technology dominated by PWM technology has better solved the problem of speed regulation of asynchronous motors, but its high device cost, especially for motors that do not require high speed regulation accuracy, actually affects its wide application. . The invention patent with the patent number ZL03145525.5 discloses an "inner compensation winding of an AC motor". On the stator core, two to three winding segments per phase are arranged in a double-layer winding arrangement, and the Three power supply terminals and three compensation terminals are drawn out through the connection mode, and the current phasor in the winding is superimposed with the current of the capacitor connected to the compensation terminal, so that the inductive power of the motor and the capacitive power of the capacitor have a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K17/12H02K17/28H02K3/28H02P23/02
Inventor 刘涛刘建平
Owner TAIYUAN UNIV OF TECH
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