RU2205492C1 - Twelve-to-ten pole changeable winding - Google Patents

Abstract

FIELD: electrical engineering; new variable-speed motors. SUBSTANCE: winding has 36 coil groups with coils alternating in groups as follows: 2K, 3K, 2K, 2K, 2K, 3K, 2K, 1K, 2K, 3K, 2K, 2K, 2K, 3K, 2K, 1K, 1K, 2K, 3K, 2K, 2K, 2K, 3K, 1K, 1K, 2K, 3K, 2K, 2K, 2K, 3K, 2K, 1K, where K is integer number; finish of coil group 1 is connected to finish of coil group 4, start of group 4, to start of group 7, finish of group 7, to finish of group 10, start of group 10, to start of group 13, finish of group 13, to finish of group 16, start of group 19, to start of group 22, finish of group 22, to finish of group 25, start of group 25, to start of group 28, finish of group 28, to finish of group 31, start of group 31, to start of group 34, start of group 2, to start of group 5, finish of group 5, to finish of group 9, start of group 9, to start of group 11, finish of group 11, to finish of group 14, start of group 14, to start of group 18, finish of group 20, to finish of group 23, start of group 23, to start of group 27, finish of group 27, to finish of group 29, start of group 29, to start of group 32, finish of group 32, to finish of group 36, start of group 35, to start of group 3, finish of group 3, to finish of group 6, start of group 6, to start of group 8, finish of group 8, to finish of group 12, start of group 12, to start of group 15, finish of group 17, to finish of group 21, start of group 21, to start of group 24, finish of group 24, to finish of group 26, start of group 26, to start of group 30, finish of group 30, to finish of group 33; terminal lead 37 is formed by integrated finish of group 35 and finish of group 36, terminal lead 38, by integrated finishes of groups 1 and 33, terminal lead 39, by integrated finishes of groups 2 and 34, terminal lead 40, by integrated start of group 17 and finish of group 15, terminal lead 41, by integrated finish of group 18 and start of group 20, terminal lead 42, by integrated finish of group 19 and start of group 16. Applying voltage to terminal leads 37, 38, and 39 changes over to ten-pole circuit arrangement. If voltage is applied to terminal leads 40, 41, 42 and terminal leads 37, 38, 39 are integrated, we shall have 12-pole connection. EFFECT: extended combination of changeable number of winding poles. 1 cl, 5 dwg

Description

 The invention relates to electrical engineering, in particular to electrical machines, and may find application in multi-speed electric motors.

Known pole-switchable winding for 12-10 poles, containing in each phase 6 coil groups with numbers 6i-5, 6i-3, 6i-1, 6i + 4, 6i + 6, 6i + 8 and conclusions from the beginning of the coil groups 6i-5 , 6i-3, 6i-1 and from the combined beginnings of 6i + 6 coil groups, where i is the phase number (i = 1, 2, 3) [1]. A disadvantage of the known winding is that at 2p = 10 the phase difference of the EMF vectors of the parallel branches is 10 ^o and in the small value of induction with a smaller number of poles, which complicates its practical use.

 Closest to the invention is a pole-switchable winding at 6-4 poles [2], containing 18 coil groups with the number of coils in groups 2K, 3K, 2K, 2K, 2K, 3K, 2K, 1K, 1K, 2K, 3K, 2K, 2K , 2K, 3K, 2K, 1K, 1K, where K is an integer, with the end of 1 coil group connected to the end 4 of the coil group, the beginning 4 with the beginning 7, the beginning 10 with the beginning 13, the end 13 with the end 16 beginning 2 - beginning 5, end 5 - end 9, end 11 - end 14, beginning 14 - beginning 18, beginning 17 - beginning 3, end 3 - end 6, end 8 - end 12, beginning 12 - with the beginning 15, the conclusions form the end 17 of the reel of the second group, the beginning of 1 coil group, the end of 2 coil groups, the combined beginnings of 6 and 8 coil groups; the combined ends of 7 and 10 of the coil groups, the combined beginnings of 9 and 11 of the coil groups, at the zero point the end of 18, the beginning of 16 and the end of 15 of the coil groups are combined.

 A disadvantage of a winding is its limited scope.

 The present invention solves the problem of expanding the combination of switchable numbers of poles of the winding.

 This is achieved by changing the compounds of the coil groups. With a double number of coil groups, the number of coils in groups 2K, 3K, 2K, 2K, 2K, 3K, 2K, 1K, 1K, 2K, 3K, 2K, 2K, 2K, 3K, 2K, 1K, 1K, 2K, 3K, 2K , 2K, 2K, 3K, 2K, 1K, 1K, 2K, 3K, 2K, 2K, 2K, 3K, 2K, 1K, 1K, where K is an integer, with the end of 1 coil group connected to the end 4 of the coil group, beginning 4 - with beginning 7, end 7 - with end 10, beginning 10 - with beginning 13, end 13 - with end 16, beginning 19 - with beginning 22, end 22 - with end 25, beginning 25 - with beginning 28, end 28 - with the end 31, beginning 31 - with the beginning 34, beginning 2 - with the beginning 5, end 5 - with the end 9, beginning 9 - with the beginning 11, end 11 - with the end 14, beginning 14 - with the beginning 18, EC 20 - with the end 23, beginning 23 - with the beginning 27, end 27 - with the end 29, beginning 29 - with the beginning 32, end 32 - with the end 36, beginning 35 - with the beginning 3, end 3 - with the end 6, beginning 6 - beginning 8, end 8 - end 12, beginning 12 - beginning 15, end 17 - end 21, beginning 21 - beginning 24, end 24 - end 26, beginning 26 - beginning 30, end 30 - with the end 33, the conclusions form the combined end of 35 and the beginning of 36 coil groups, the combined beginnings of 1 and 33 of the coil groups, the combined ends of 2 and 34 of the coil groups, the combined beginning of 17 and the end of 15 coil groups, the combined end of 18 and the beginning of 20 coil x groups combined end 19 and top 16 of the coil groups.

 Figure 1 shows a diagram of the winding, and figure 2-5 shows the direction of the current on the sides of the coils and the magnetically moving forces of the winding.

 The winding contains 36 coil groups with numbers 1-36 and conclusions with numbers 37-42. The number of coils in the coil groups is determined by the number series 2K, 3K, 2K, 2K, 2K, 3K, 2K, 1K, 1K, 2K, 3K, 2K, 2K, 2K, 3K, 2K, 1K, 1K, 2K, 3K, 2K, 2K, 2K, 3K, 2K, 1K, 1K, 2K, 3K, 2K, 2K, 2K, 3K, 2K, 1K, 1K, where K is an integer, with the end of 1 coil group connected to the end 4 of the coil group, beginning 4 - with beginning 7, end 7 - with end 10, beginning 10 - with beginning 13, end 13 - with end 16, beginning 19 - with beginning 22, end 22 - with end 25, beginning 25 - with beginning 28, end 28 - with the end 31, the beginning 31 - with the beginning 34, the beginning 2 - with the beginning 5, the end 5 - with the end 9, the beginning 9 - with the beginning 11, the end 11 - with the end 14, the beginning 14 - with the beginning 18, the end 20 - with nets 23, beginning 23 - with beginning 27, end 27 - with end 29, beginning 29 - with beginning 32, end 32 - with end 36, beginning 35 - with beginning 3, end 3 - with end 6, beginning 6 - with beginning 8, end 8 - with the end 12, beginning 12 - with the beginning 15, end 17 - with the end 21, beginning 21 - with the beginning 24, end 24 - with the end 26, beginning 26 - with the beginning 30, end 30 - with the end 33 , the conclusions form the combined end of 35 and the beginning of 36 coil groups (terminal 37), the combined beginnings of 1 and 33 coil groups (terminal 38), the combined ends of 2 and 34 coil groups (terminal 39), the combined beginning of 17 and the end of 15 coil groups (terminal 40) united by nets 18 and the beginning of 20 coil groups (terminal 41), the combined end of 19 and the beginning of 16 coil groups (terminal 42).

 If the voltage is applied to the terminals 37, 38, 39, we get 10 poles (Figures 4 and 5). The connection diagram of the phases of the triangles is Δ. If the voltage is applied to the terminals 40, 41, 42, and the conclusions 37, 38, 39 to combine, we get 12 poles (figure 2 and 3). Scheme of the connection of the phases of two stars - YY. In Fig.2-5, the directions of the currents on the sides of the coils and the magnetomotive forces correspond to the amplitude of the current in phase A. The sides of the coils of phase A are indicated by a square, phase B by a triangle, phase C by a circle.

The values of the winding coefficients k _{rev1 (12)} = 0.88 and k _{rev1 (10)} = 0.67. Thanks to the adopted scheme for connecting coil groups, the combination of switchable numbers of winding poles has been expanded, therefore, the scope of the multi-speed electric motor has been expanded.

Sources of information
1. A.S. 1347125 USSR, 1987, BI 39.

 2. Patent 2171539, 2001, BI 21 prototype.

Claims (1)

 Pole-switched winding for 12-10 poles, containing 36 coil groups with alternating numbers of coils in groups 2K, 3K, 2K, 2K, 2K, 3K, 2K, 1K, 1K, 2K, 3K, 2K, 2K, 2K, 3K, 2K, 1K, 1K, 2K, 3K, 2K, 2K, 2K, 3K, 2K, 1K, 1K, 2K, 3K, 2K, 2K, 2K, 3K, 2K, 1K, 1K, where K is an integer, with the end 1 the coil group is connected to the end 4 of the coil group, beginning 4 - with the beginning 7, end 7 - with the end 10, beginning 10 - with the beginning 13, end 13 - with the end 16, beginning 2 - with the beginning 5, end 5 - with the end 9 beginning 9 - beginning 11, end 11 - end 14, beginning 14 - beginning 18, end 3 - end 6, beginning 6 - beginning 8, end 8 - end 12, beginning 12 - beginning 15, characterized in that the beginning 19 of the reel group is combined with the beginning 22 of the reel group, the end 22 - with the end 25, the beginning 25 - with the beginning 28, the end 28 - with the end 31, the beginning 31 - with the beginning 34, end 20 - with end 23, beginning 23 - with beginning 27, end 27 - with end 29, beginning 29 - with beginning 32, end 32 - with end 36, beginning 35 - with beginning 3, end 17 - with end 21, beginning 21 - with the beginning 24, end 24 - with the end 26, beginning 26 - with the beginning 30, end 30 - with the end 33, the conclusions form the combined end 35 and the beginning 36 of the coil groups (terminal 37), the combined beginnings of 1 and 33 of the coil groups ( conclusion 38), the combined ends of 2 and 34 coil groups (terminal 39), the combined beginning of 17 and the end of 15 coil groups (terminal 40), the combined end of 18 and the beginning of 20 coil groups (terminal 24), the combined end of 19 and the beginning of 16 coil groups ( Conclusion 42).

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