RU2252474C1 - Stator winding of for-pole induction generator - Google Patents

Abstract

FIELD: electromechanical engineering.

SUBSTANCE: proposed stator winding of four-pole induction generator designed to produce off-line dual-voltage power supplies around capacitor-excited induction generators has twelve coil groups; finishing lead of coil group 3 is connected to finishing lead of coil group 6; finishing lead of coil group 7, to finishing lead of coil group 10; finishing lead of coil group 11, to finishing lead of coil group 2. Finishing lead of coil group 1 is connected to starting lead of coil group 7; starting lead of coil group 10, to finishing lead of coil group 4; finishing lead of coil group 5, to starting lead of coil group 11; starting lead of coil group 2, to finishing lead of coil group 8; finishing lead of coil group 9, to starting lead of coil group 3; starting lead of coil group 6, to finishing lead of coil group 12. Phase leads are brought out from interconnected starting leads of coil groups 1 and 12, from interconnected starting leads of coil groups 4 and 5, from interconnected starting leads of coil groups 8 and 9, from interconnected finishing leads of coil groups 3 and 6, from interconnected finishing leads of coil groups 7 and 10, and from interconnected finishing leads of coil groups 11 and 12.

EFFECT: enlarged functional capabilities of winding.

1 cl, 3 dwg

Description

The invention relates to electrical engineering and can be used to create autonomous sources of electricity for two voltages.

A four-pole stator winding of 6 coil groups is known, with the end of 1 coil group connected to the beginning of 4 coil groups, the end of 3 coil groups connected to the beginning of 6 coil groups, the end of 5 coil groups connected to the beginning of 2 coil groups, with leads from beginnings 1, 3, 6 coil groups and from the ends of 4, 6, 2 coil groups / 1,2 /.

A disadvantage of the known winding is that in asynchronous generators of autonomous sources of electricity with a certain speed of the drive machine, it creates a voltage of one magnitude.

A four-pole stator winding is known, consisting of 12 coil groups, with the end of 1 coil group connected to the end of 4 coil groups, the beginning of 4 coil groups connected to the beginning of 7 coil groups, the end of 7 coil groups connected to the end of 10 coil groups, the end of 5 coil groups connected to the end 8 of the coil group, the beginning of the 8th coil group is connected to the beginning of the 11th coil group, the end of 11th coil group is connected to the end of 2, the end of 9th coil group is connected to the end of the 12th coil group, the beginning of 12th coil g uppy 3 is connected with the beginning of the coil groups, the end groups of the coil 3 connected to the end 6, with the pin started from 1, 5 and 9 of the coil groups and started 10, 2 and 6 of the coil groups / 1, 2 /.

A disadvantage of the known winding is that in asynchronous generators of autonomous sources of electricity with a certain speed of the drive machine, it creates a voltage of one magnitude.

The technical solution of the invention is to expand the functionality of the winding - obtaining two voltages of the asynchronous generator.

The problem is achieved in that in the stator winding of 12 coil groups with the connection of the end 3 of the coil group to the end 6 of the coil group, the end of 7 coil group to the end 10 of the coil group, the end of 11 coil group to the end 2 of the coil group, the end 1 of the coil group is connected with the beginning of the 7th coil group, the beginning of the 10th coil group is connected to the end of the 4th coil group, the end of 5th coil group is connected to the beginning of the 11th coil group, the beginning of 2th coil group is connected to the end of 8th coil group, the end of 9th coil g UPPA is connected to the beginning of 3 coil groups, the beginning of 6 coil groups is connected to the end of 12 coil groups, the conclusions are taken from the combined beginnings of 1 and 12 coil groups, from the combined beginnings of 4 and 5 coil groups, from the combined beginnings of 8 and 9 coil groups, from the combined ends 3 and 6 of the coil groups, from the combined ends of the 7 and 10 coil groups and from the combined ends of the 11 and 2 coil groups.

Figure 1 shows a diagram of the winding at 36 grooves of the stator; figure 2 - connection diagram of the excitation capacitors 19, 20, 21; figure 3 is a vector diagram of stresses.

According to figure 1, the stator winding contains 12 coil groups, with the end of the 1 coil group connected to the beginning of the 7 coil group, the end of the 7 coil group connected to the end 10 of the coil group, the beginning of 10 coil group connected to the end 4 of the coil group, end 5 of the coil group connected to the beginning of the 11th coil group, the end of the 11th coil group is connected to the end of 2 coil groups, the beginning of 2 coil groups is connected to the end of 8 coil groups, the end of 9 coil groups is connected to the beginning of 3 coil groups, the end of 3 coil the group is connected to the end of the 6th coil group, the beginning of the 6th coil group is connected to the end of the 12th coil group, the conclusions are taken from the combined principles of 1 and 12 coil groups, from the combined principles of 4 and 5 coil groups, from the combined principles of 8 and 9 coil groups, from the combined ends 3 and 6 of the coil groups, from the combined ends of the 7 and 10 coil groups and from the combined ends of the 11 and 2 coil groups.

According to figure 2, the field capacitors 19, 20, 21 are connected to the terminals of the high voltage winding 13, 15, 17.

According to figure 3, the ratio of the sum of the vectors of the coils between the terminals of the windings 13 and 15 and the terminals 16 and 18 determines the ratio of the voltages between these terminals 1.73 / 1.

Thus, the proposed stator winding of the asynchronous generator allows you to make a power source for two voltages, for example, 400 and 230 V.

Sources of information

1. Asynchronous motors of the 4A series: Reference book / A.E. Kravchik, M.M.Shlaf, V.I. Afonin, E.A. Sobolenskaya. - M.: Energoizdat, 1982, 208 p.

2. Vanurin V.N. Stator windings of asynchronous electric motors. - Zernograd: VNIPTIMESKH, 2001, 44 p.

Claims (1)

The stator winding of a four-pole asynchronous generator, consisting of 12 coil groups with a connection of the end of the 3rd coil group with the end of the 6th coil group, the end of the 7th coil group with the end of the 10th coil group, the end of the 11th coil group with the end of 2 -th coil group, characterized in that the end of the 1st coil group is connected to the beginning of the 7th coil group, the beginning of the 10th coil group is connected to the end of the 4th coil group, the end of the 5th coil group is connected to the beginning of 11- th reel group, beginning of the 2nd reel group neno with the end of the 8th reel group, the end of the 9th reel group is connected to the beginning of the 3rd reel group, the beginning of the 6th reel group is connected to the end of the 12th reel group, the conclusions are taken from the combined beginnings of the 1st and 12th th coil groups, from the combined beginnings of the 4th and 5th coil groups, from the combined beginnings of the 8th and 9th coil groups, from the combined ends of the 3rd and 6th coil groups, from the combined ends of the 7th and 10th coil groups and from the combined ends of the 11th and 2nd coil groups.

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