SU1432682A1 - Linear induction motor - Google Patents

Abstract

The invention relates to electrical engineering and can be used to drive vehicles. The goal is to increase energy and reduce weight and size indicators. A linear asynchronous motor contains short inductors 1 and 2. Three inductor windings 4 are placed in the inductor slots, with coil sides of winding 4 located in one layer of the extreme grooves 5, and coils 6 laid in the opposite side and connected to the corresponding two-layer phases windings. The conductors of the last groove 7 of the inductor 1 and the first groove 8 of the inductor 2 W.1. Phase shift. The cores of the inductors 1 and 2 are located with an interval equal to the width of the groove. During operation, the effect of inductor 1 on the energy parameters of inductor 2, 2 or less is practically eliminated. . with (L

Description

The invention relates to electrical engineering and can be used to drive vehicles.

The aim of the invention is to increase the energy and reduce the weight and size indicators.

FIG. shows the engine, a general view; figure 2 - diagram of the winding of the inductor.

The linear asynchronous motor contains a series of short inductors 1 and 2. The lined cores 3 and 1 and 2 contain two-layer three-phase windings 4 with the number of grooves per pole and phase q, 3. The coil sides of the two-layer winding 4 are located in one layer of the extreme Bmq slots 5 (p 7/9 - acceleration of the winding pitch j - the number of phases), and in the other layer - the conductors of the coils 6, laid through the cable and connected to the corresponding phases of the two-layer winding the distribution of the coil sides of the phase windings in the entire length of the inductor. The conductors of the last groove 7 of the previous inductor; 1 and the first groove 8 of the subsequent 2 inductor have a phase shift lIT / mq, where m is the number of phases; q. - the number of grooves per pole and phase. The cores 3 of the inductors 1 and 2 are located with an interval equal to the width of the nasia b. With a gap U from the inductors' plane, there is a track secondary element consisting of and from the return magnetic conductor 9 and the reactive bus 10 The engine can contain any number of inductors.

In one layer of the extreme jbm.q slots in inductor 1; there are coils b, laid through the RMO. In the first three slots there are coil sides of phase C, C of a two-layer winding,

In the extreme pmq slots of the inductor 2, in addition to the coil sides of the two-layer winding, there are also coils 6, which are laid through the rome. Unlike the first (previous) inductor, in the first groove there is a coil side of the C, Su phase, and in two subsequent slots there are coil sides of the С |, С phase of a two-layer winding, i.e. The electrically windings of the first and second inductors are not equally connected.

The device works as follows.

When connecting the multi-phase windings 4 and coils 6 inductors 1 and 2 to a three-phase alternating source

voltage is generated by a traveling magnetic field, with a pole division unchanged along the length of the drive, which induces EMF in the secondary element. Under the action of EMF in the reactive tire-10

o and the reverse magnetic core 9 flow eddy currents. As a result of the electromagnetic interaction of the eddy currents of the secondary element with the field that caused them, an electromagnetic force develops, which moves the inductors 1 and 2 of the electric drive relative to the secondary element in the direction coinciding with the traveling electromagnetic field with a speed of several

0 less synchronous.

The arrangement of the cores 3 of the inductors 1 and 2 with an interval equal to the width of the groove, and the described inclusion of inductor coils 1 and inductor 2 provides a phase shift between the slot currents of the last groove 7 of the inductor 1 and the first groove 8 of the inductor 2 at 21G / t el. hail and magnetizing force distribution c. constant pole division throughout the engine length. Thus, the influence of the previous inductor on the energy parameters of the subsequent motor is essentially excluded.

5 approaches the machine without a longitudinal edge effect.

Claims (1)

The invention formula The linear asynchronous motor, d containing a secondary element and a series of short, successively arranged inductors consisting of laminated magnetic circuits with multiphase working workers placed in their grooves 5 double-layer windings with half-floor-. The grooves on the edges differ from the fact that, in order to increase energy and reduce mass and dimensions, the magnetic conductors are located with an interval equal to the width of the groove, and the extreme half-filled grooves are equipped with coils according to the number of phases of the working windings wound around the magnetic cores and connected in series to the corresponding phases of the working windings, with the conductors of the working windings of the last groove of the previous inductor and the first groove of the subsequent inductor0 five pa have an electrical phase shift where m is c the number of phases of the winding; the number of grooves per pole and phase. with, Sat with. I "-v ./ / fCfia 1t; if -if-- 0, SIm) I- Ju "V I 1 . ,  3 9 HC (la-t-c -0.5Imi ig-lrn) Ji 2 R