SU1753550A1 - Unlike inductor generator - Google Patents

Abstract

Usage: electric generators and inductor type converters. SUMMARY OF THE INVENTION: An inductor generator comprises a stator with alternating polar poles. The coils of the excitation winding are located at the poles of the stator and the main teeth are made. In the grooves between the main teeth placed coils of multi-phase winding. On the main teeth with a pitch equal to the pitch along the teeth of a non-winding rotor, additional teeth are made. The number of main teeth at the pole is equal to twice the number of phases. The phase coil covers the m main teeth, and one phase covers all the teeth. The step on the additional teeth of the adjacent main teeth of the pole is made in accordance with the expression (Ki ± 1 / 2m), and on the additional teeth of the adjacent poles of different polarity in accordance with the expression (K2-M / 2 ± 1 / 2m), where tz - step on the teeth of the rotor, m - the number of phases, Ki, K2 - integers, and K2 Ki.1 Il.

Description

The invention relates to electric machines and can be used to create electric generators and inductor type converters. Different-pole inductor generators are known, in which the coil windings of the core are stacked with incomplete coverage of the main teeth of the stator, hence the low specific mass-dimensional parameters.

The most vigorous of the technical nature of the present invention is a multi-pole inductor generator comprising a stator with alternating polar poles and a gear non-winding rotor. At the poles of the stator, covering them, are located the coils of the excitation winding and the main teeth are made. In the grooves between the main teeth are placed the coils of the multi-phase winding of the core. Additional teeth can be made on the main teeth. The steps along the rotor tines and additional tines within the same main tine of the pole are made equal.

The disadvantage of this design is the low specific power due to the high consumption of copper on the field winding, each coil of which covers only two main teeth. The small amount of flow adheres here and to the phase of the winding of the core, covering only part of the main teeth.

The purpose of the invention is to increase the power density by reducing the mass and dimensions of the generator at a given output power.

The goal is achieved by the fact that in a pole-type inductor generator containing a stator with poles

X |

word

alternating polarity, at the poles of the stator, covering them, the excitation winding coils are located and the main teeth are made, in the slots between which the multi-phase winding of the core are placed, on the main teeth there are additional teeth, a gear non-winding rotor, steps along the rotor teeth and additional teeth one, and the same main wave of the stator pole is made equal, each pole is made with the number of main teeth equal to twice the number of phases, the coils of the core wrap each m and m main teeth each and every Nena each other alternately and according to the counter, and each armature winding phase covers all the major tines poles by the additional step of tines adjacent main pole teeth formed in accordance with the expression

(Ki ± 27n),

and for additional teeth of adjacent poles of different polarity - in accordance with the expression

(K2 + 1 ± TL}

where tz - step on the teeth of the rotor;

m is the number of phases;

Ki and K2 are integers, and K2 KL

The drawing shows the scan of the winding of the core and the structure of the tooth zones of the stator and rotor.

A pole-type inductor generator contains a stator with 1 pole 2 and 3 alternating polarity. At the poles of the stator, covering them, are located the coil 4 of the excitation winding. At the poles made the main teeth 5-16. In the grooves between the main teeth there are coils of a multi-phase winding core 17. Additional teeth 18 are made on the main teeth 5-16. In the bore of the stator there is a gear non-winding rotor 19, on which teeth 20 are located with uniform pitch tz. and the same main wave of the pole is made equal to tz. Each pole 2 and 3 is made with the number of main teeth equal to twice the number of phases. The coils of each phase of the core winding cover the m main teeth and are connected in phase with each other alternately according to and oppositely. Each phase of the winding of the core covers all the main teeth of the poles.

The step on the additional teeth related to the adjacent main pole teeth is made in accordance with the expression

),

and for additional teeth, related to the adjacent main teeth of poles of different polarity, in accordance with the expression

r2 (K2 + 1 ± 2),

Here, Ki and K2 are integers chosen to ensure sufficient space in the slots to accommodate the sides of the respective coils, and since the sides of the excitation windings are also located in the slots between the poles of different polarities, the sides of the coil windings are also ki.

The number of teeth of the rotor in this case is determined by the expression (a-1) + 2p

(2m-1XKi ± 2) + 2P (K2 + | ± 2),

and the number of additional teeth on the stator

,

where p is the number of pairs of poles;

and - the number of additional teeth on one main tooth.

Example (drawing),. Coils

each phase covers three main teeth, each of which has two additional teeth. There are six on one pole, and only two poles have twelve main teeth and twenty-four additional ones. There are twenty-three teeth on the rotor. Steps

with

on the teeth: ti - | tz; t2 -gtz with and

sign -. In this case, the phase shift of the first harmonics of the magnetic fluxes of the main teeth of 60 el. Degrees is provided.

Since in the device, the coils of each phase encompass all the main teeth of the stator poles, and each coil covers

immediately m such teeth, the total flux linkage of the phase increases, increases with the rotation of the rotor and induced emf in it. The maximum flux linkage with one phase is equal to the product of the number of turns in

one coil, the amplitude value of the magnetic flux of the main wave, the number of main teeth, and the winding ratio. Under these conditions, the consumption of active materials is reduced, i.e. their use is improved, and hence the generator power density rises.

Claims (1)

Claims of invention A pole-type inductor generator containing a stator with poles. alternating polarity, at the poles of the stator, covering them, are located the coils of the excitation winding and the main teeth are made, in the slots between which the multi-phase winding of the core are placed, on the main teeth there are additional teeth, a gear-free rotor, steps along the rotor teeth and additional teeth within the same main stator tooth is made equal, which is indicated by the fact that, in order to raise the specific power of the generator, each pole is made with a number of main teeth equal to twice the number of phases, a carcass covering the armature windings m and major teeth each interconnected according alternately and oppositely and each phase winding of the armature covers all the main pole prongs, tuarti by dopolni0 the body teeth of the adjacent main pole teeth are made in accordance with the expression (Kl ±). and step t2 along additional teeth of adjacent poles of different polarity is in accordance with the expression where tz - step on the teeth of the rotor; m is the number of phases; Ki, Kz - integers, and Kg Ki.