SU1051658A1 - Three-phase pole-switched 10-8-pole winding - Google Patents

Abstract

THREE-PHASE FLOOR {DISCONTINUED-WINDING FOR 10-8 POLES with the number of slots Z / K 72 (K 1,2, ...), Ma divided six six semi-phases, in which the change in the number of poles Achieved by a change in current in three pairs of fluoresses. they are distinguished by the fact that, with the aim of improving the harmonic composition of the magnetizing force, decreasing the total differential scattering coefficient for both numbers of pairs of poles, improving the energy indices, it contains thirty-six coil groups, the number of coils in which is expressed by numerical series / LC, 2K , L., K, 4K, k) ... (K 4,2,3, ..), with the first semi-phase of the first phase belonging to the coil groups with the numbers 1,5,3,10, 12,33, the second semi-phase of the first phase coil groups 19, 23, 26, 28,. 3Q, 15 / the first semi-phase of the second phase-coil groups 13, 17, 20, 22, 24, 9, the second semi-phase of the second phase coil groups 31, 35, 2, 4, 6, (/) 28, the first semi-phase of the third phase coil groups 25, 29, 32, .34, 36, 21, the second half-phase of the third phase - coil groups 7, 11, 14, § 16, 18, 3, and the coil groups 5, 12, 33,23,30,15,17,24,9, 35,6,28, 29,36,21,11,8,3 are included opposite in relation to the other coil-spatter groups of semi-phases. O) O1 00

Description

The invention relates to pole-switching windings and can be used to create multi-speed electric motors.

The pole-switched windings are known at 10-8 poles with the number of grooves 2 72, containing 30 coil groups with alternating coils expressed by a number series (2, 3, 2, 3, 2). .. pole-selectable winding for 8-10 poles at 2 - 72, containing 24 coil groups with alternating coils expressed by a number row (3, 3, 3, 3.. СХЗ, pole-switching windings for 810 poles and 10-8 poles with the number of slots t 12, obtained by means of sinusoidal pole-amplitude modulation, each containing 30, 24, 18 coil groups with alternating coils, expressed respectively by numerical series (1, 4, 1,. 3, 3) ... (2, 4, 4, 2) ... f2 and (3, 4, 5} ... NW.

Also known is a winding with switching pole pairs equal to an irreducible irregular fraction. With a multiple tpeM numerator and denominator K which includes in each phase P and Pj equal coils containing an integer number of sections each and evenly spaced around the circumference of the stator bore excluded alternately according to and opposite and connected with the number of pir poles P -) in 2P coil groups, and at P 2 pairs of poles in 2P ,, C4 coil groups J.

The winding at P, 5 at P2 4 is known to contain, as such, in a phase of at least 5-4 20 coil groups, which is possible with a stator with a number of notches at least 60. The numerical series of the scheme (1, 1, 1, 1, 1 , 1b ...

Known circuits are distinguished by a high total content of higher and lower harmonics at both speeds.

The purpose of the invention is to improve the harmonic composition of the magnetizing force, reduce the total differential scattering coefficient for both numbers of pairs of poles, and improve the shergic performance.

This goal is achieved by the fact that a three-phase pole-switchable circuit of 10-8 poles with the number of slots 2 К 72 (К 1, 2, ...), divided into six equal half-phases, in which the change of the number of poles is achieved by changing the current in three half-phases, contains thirty six coil groups, the number of coils in which is expressed by the numerical series (LC, 2K, K, K, 4K, K). (K 1, 2, 3 ... J, and the first half-phase of the first phase belong, the coil groups with nanometers 1,5,8, 10, 12, 33, the second half-phase of the first phase 5 coil groups 19, 23, 26, 28, 30 , 15, the first half-phase of the second phase - coil groups 13, 17, 20, 22, 24, 9, the second half-phase of the second phase - coil groups 31, 35, 2, 4 6. 28, the first half-phase Tpejb phase - coil groups 25t 29, 32f 34, 36, 21, second half-phase of the third phase - coil groups 7, 11 14, 16, 18, 3, and coil groups 5, 12 33, 23, 30, 15, 17, 24, 9, 35, 6, 28 , 29, 36, 21, 11, 8, 3 are included opposite in relation to the other coil groups of semi-phases.

The minus sign next to the coil number indicates that it is on the opposite side ..

The drawing shows a winding scheme with Z 12f y 1 and mating 5 phases 1X (L

At P 5, power is supplied to

B-05 05

 four

at P

conclusions 05

to the conclusions of A.d., Vts, C 0, and conclusions 04 04 04. 05 OS Р Р 4 are shorted.

Compared to the known device, having a minimum differential coefficient of the differential at both speeds, the relative amplitudes of the maximum harmonics are 1.31 times less at., 5, and 1.14 times at R.2 .4. The ratio of the magnetic induction of the known 0.8745, in the proposed winding is 1.086, which will allow a better use of the magnetic core of the engine at both speeds of the enemy.

Claims (1)

(54) ('57) THREE-PHASE SEMI-SWITCHABLE · WINDING BY 10-8 POLES with \ number of grooves 'Ζ = Λ 72 (K = 1,2, ...)', divided into six identical half-phases in which the change in the number of poles is achieved a change in current in three pilot phases ,. they are distinguished by the fact that, in order to improve the harmonic composition of the magnetizing force, to reduce the total differential scattering coefficient for both numbers of pole pairs, to improve energy performance, it contains thirty-six coil groups, the number of coils in which is expressed by a numerical series / ZK, 2K , Λ-, K, 4K, k) ... (K = 1,2,3 and the first half-phase of the first phase belongs to the coil groups with numbers 1,5,3,10, 12,33, the second half-phase of the first phase belongs to the coil groups 19, 23, 26, 28,. 30, 15 _{x the} first half phase of the second phase coil groups 13, 17, 20, 22, 24, 9, the second half-phase of the second phase coil groups 31, 33, 2, 4, 6, 28, the first half-phase of the third phase is coil groups 25, 29, 32, 34, 36, 21, the second half-phase of the third phase is coil groups 7, 11, 14, 16, 18, 3, and the coil groups 5, 12, 33,23,30 15,17,24,9,35,6,28, 29, 36,21,11,8,3 are included counter-with respect to the remaining coil groups of the half-phases.