RU140530U1 - WINDING AC ELECTRIC MACHINE - Google Patents

Abstract

1. The winding of an AC electric machine, made m-phase with the number of pairs of poles p in the grooves of the magnetic circuit and contains phase zones in each phase, while q series-connected coils are made with step = ∑у / q, where i = l, .. q, characterized in that the winding is made of four-zone and the number of coils connected in series q is laid in the grooves of the magnetic circuit with step = Z / (np) within each pair of phase zones, where n is the number of phase zones, while the number of phases m, the number of phase zones n, the number of coils q and the number Ζ of grooves of the magnetic circuit are related by the relation Ζ = nmpq. 2. The winding of an AC electric machine according to claim 1, characterized in that the four-zone winding is made of three-phase m = 3, single-layer with the same number of grooves q per pole, phase and phase zone, with the distribution of the sides of the coils in the grooves according to the law (AbZxBcXyCaYz), where " A, a and X, x "- phase zones of the first phase of the four-zone winding," B, b and Y, y "- phase zones of the second phase of the four-zone winding, and" C, c and Ζ, z "- phase zones of the third phase of the four-zone winding where (Ax) (Xa) are the coil groups forming the half phases of the first phase of the four-zone winding, (By) (Yb) are the coil groups forming e the half-phases of the second phase of the four-zone winding, a (Cz) (Zc) are the coil groups forming the half-phases of the third phase of the four-zone winding, the index "q" is the number of coil sides placed side by side in the corresponding phase zone and having the same current direction in the phase zones " A, a, B, b and C, c "in one direction (for example, up), and in the phase zones" X, x, Y, y and Ζ, z "in the other direction (for example, down), with q coils sequentially connected within each phase zone is performed with a step equal to = τ = Z / (np). 3. The winding of an electric AC machine according to claim 1,

Description

The utility model relates to the field of electrical engineering, namely to the device of multiphase windings of AC electric machines, and can be used in the manufacture of energy-efficient AC motors, including multi-speed motors with polysynchronism property.

Known windings of an electrical AC machine [Voldek A.I. Electric cars. Textbook for students of higher. tech. training institutions. - 3rd ed., Revised. - L .: Energia, 1978. - with 393], which is made m-phase with phase zones α equal to:

- α = 360 ° / (nm) is the phase zone, where n is the number of phase zones: n = 1 is a single-zone winding (for m = 3, the winding is called a 120 ° -band, or three-zone),

- n = 2 - two-zone winding (with m = 3, the winding is called a 60 ° -band, or six-zone).

The number of grooves per pole and phase for a single-band winding (n = 1) is equal to Q

Q = Z / (pm),

and the number of grooves per pole and phase for a two-zone winding (n = 2) is q

q = Z / (2pm).

The phase zone α is formed by the sides of the coils of one coil group located in adjacent grooves and occupying Q (for a single-zone winding) or q (for a two-zone winding) tooth divisions.

Winding with a zone of 60 el. degrees is more advantageous, since for a uniformly distributed winding, the winding coefficient for the working harmonic, which determines the use of the winding, is 1.15 times higher, and the mass of the copper of the winding is 15% less. Therefore, in practice, they prefer to use dual-zone windings (n = 2) single-layer and double-layer

Known windings (n = 2) of an alternating current electric machine are single-layer and two-layer, which are made by m-phase two-zone [General-purpose induction motors / Boyko V.M., Gaintsev Yu.V., Kovalev Yu.M., et al .; Ed. V.M. Petrova and A.E. Kravchika. - M.: Energy, 1980. - p. 120-125] and in which the process of laying stator loose windings at electric machine plants is mechanized. On stator winding machines, the winding placed in the stator grooves should be concentric, but their use is associated with increased copper consumption due to the long lengths and overhangs of the frontal parts. A single-layer concentric winding is most suitable for mechanized styling.

This winding is closest to the proposed utility model and is a prototype.

The disadvantage of the winding of an electric alternating current machine performed by the m-phase as a single-layer concentric or two-layer with a small step shortening coefficient is the increased copper consumption due to the long lengths and outcrops of the frontal parts. The absence of step shortening in single-layer windings leads to the same deterioration of the field shape in the air gap, additional losses and magnetic noise.

The analysis of the prior art indicates that the objective of the utility model is to reduce the consumption of copper by reducing the average length of the coil and the departure of the frontal parts of the winding of an electric AC machine by shortening the pitch of the winding in the grooves.

The task is achieved in that the winding of an electric AC machine is m-phase with the number of pole pairs p ₀ in Z grooves of the magnetic circuit and contains phase zones in each phase, while q series-connected coils are made in increments

y _cp = Σy _i / q,

where i = 1, ... q,

characterized in that the winding is made of four-zone and the number of sequentially connected coils q are laid in the grooves of the magnetic circuit in increments

y _cp = Z / (np ₀ )

within each pair of phase zones, where n is the number of phase zones, while the number of phases m, the number of phase zones n, the number of coils q and the number Z of grooves of the magnetic circuit are related by

Z = nmp ₀ q.

The task is also achieved by the fact that the winding of an electric AC machine can be m-phase with the number of pole pairs p ₀ in Z grooves of the magnetic circuit and contains phase zones in each phase, while q series-connected coils are made in increments

y _cp = Σy _i / q,

where i = 1, ... q.

The winding is made of four-zone and the number of coils connected in series is laid in the grooves of the magnetic circuit in increments

y _cp = Z / (np ₀ )

within each pair of phase zones, where n is the number of phase zones, while the number of phases m, the number of phase zones n, the number of coils q and the number Z of grooves of the magnetic circuit are related by

Z = nmp ₀ q.

The task is also achieved by the fact that the four-zone winding can be made of a three-phase m = 3, single-layer with the same number of grooves q per pole, phase and phase zone with the distribution of the sides of the coils in the grooves according to the law

(A _q b _q Z _{q q q q} B _q c _q X _q y _q C _q a _q Y _q z _q ) _p0 ,

where "A, a and X, x" are the phase zones of the first phase of the four-zone winding, "B, b and Y, y" are the phase zones of the second phase of the four-zone winding, and "C, c and Z, z" are the phase zones of the third phase four-zone winding

where (A _q x _q ) _p0 (X _q a _q ) _p0 are the coil groups forming the half-phases of the first phase of the four-zone winding, (B _q y _q ) _p0 (Y _q b _q ) _p0 are the coil groups forming the half-phases of the second phase of the four-zone winding , and (C _q z _q ) _p0 (Zqc _q ) _p0 are the coil groups forming the half phases of the third phase of the four-zone winding,

where the index "q" is the number of coil sides placed side by side in the corresponding phase zone and having the same current direction in the phase zones "A, a, B, b and C, c" in one direction (for example, up), and in the phase zones "X, x, Y, y, and Z, z" the other way (e.g., down).

Moreover, q coils connected in series within each phase zone are performed with a step y _cp equal to

y _cp = τ = Z / (np ₀ ).

The task is also achieved by the fact that the four-zone winding can be made of a three-phase m = 3, two-layer concentric with the number of coils K in the coil group connected in series. The sides of the K coils are stacked in the grooves of the magnetic circuit within each pair of phase zones in adjacent K grooves, where K is

K = q + t.

The pitch of concentric coils along the grooves is determined by the relations

y _cp + 2t, ..., y _cp , ..., y _cp -2t,

where y _cp = τ = 2 / (np ₀ ) and t is the shortening step selected from 1 to q.

In this case, the alternation of phase zones is performed in the sequence

(A _to b _to Z _to x _to B _to c _to X _to y _to C _to a _to Y _to Z _to ) _p0 ,

where "A, a and X, x" are the phase zones of the first phase of the four-zone winding, "B, b and Y, y" are the phase zones of the second phase of the four-zone winding, and "C, c and Z, z" are the phase zones of the third phase four-zone winding

where (A _k x _k ) _p0 and (X _k a _k ) _p0 are coil groups forming the half phase of the first phase of the four-zone winding, (B _k y _k ) _p0 and (Y _k b _k ) _p0 are the coil groups forming half phases of the second phases of the four-zone winding, and (C _to z _to ) _p0 and (Z _to c _to ) _p0 are coil groups forming the half-phases of the third phase of the four-zone winding,

where the index "K" is the number of coil sides placed side by side in the corresponding phase zone and having the same current direction in the phase zones "A, a, B, b and C, c" in one direction (for example, up), and in the phase zones "X, x, Y, y, and Z, z" the other way (e.g., down).

The number of turns in the coils is determined by the fact that the number of conductors of the two-layer winding in the grooves of the magnetic circuit is the same.

The task is also achieved by the fact that the phases of a single-layer four-zone winding made of half-phases (A _q x _q ) _p0 and (X _q a _q ) _p0 - the first phase, (B _q y _q ) _p0 and (Y _q b _q ) _p0 - the second phases, (C _q z _{q q} ) _p0 and (Z _q c _q ) _p0 - of the third phase can be turned on windy. The phases are connected in a star and the beginning of the phases form the first input of the winding with the number of poles 2p ₀ . When sequentially switching on the half-phases in phases, the second input of the winding is formed by the conclusions from the connection points of the half-phases with the number of poles 4p ₀ . In this case, the beginning and end of each phase is connected to the contacts of the switch.

The task is also achieved by the fact that the phases of a single-layer four-zone winding made of half-phases (A _q x _q ) _p0 and (X _q a _q ) _p0 - the first phase, (B _q y _q ) _p0 and (Y _q b _q ) _p0 - the second phases, (C _q z _q ) _p0 and (Z _q c _q ) _p0 , of the third phase can be included according to. In this case, the phases are connected into a star and the beginning of the phases form the first input of the winding with the number of poles 4p ₀ . When the half-phases are switched on sequentially in phases, the second input of the winding is formed by conclusions from the connection points of the half-phases with the number of poles 2p ₀ . In this case, the beginning and end of each phase is connected to the contacts of the switch.

The task is also achieved by the fact that the phases of a single-layer four-zone winding made of half-phases (A _q x _q ) _p0 and (X _q a _q ) _p0 - the first phase, (B _q y _q ) _p0 and (Y _q b _q ) _p0 , - of the second phase, (C _q z _q ) _p0 and (Z _q c _q ) _{p0 of the} third phase can be included in the opposite direction. The phases are connected in a triangle and the beginning of the phases form the first input of the winding with the number of poles 2p ₀ . When sequentially switching on the half-phases in phases, the second input of the winding is formed by the conclusions from the connection points of the half-phases with the number of poles 4p ₀ . In this case, the beginning and end of each phase is connected to the contacts of the switch.

The task is also achieved by the fact that the phases of a single-layer four-zone winding made of half-phases (A _q x _q ) _p0 and (X _q a _q ) _p0 - the first phase, (B _q y _q ) _p0 and (Y _q b _q ) _p0 - the second phases, (C _q z _q ) _p0 and (Z _q c _q ) _p0 - the third phase can be included according to. The phases are connected in a triangle and the beginning of the phases form the first input of the winding with the number of poles 4p ₀ . When the half-phases are switched on sequentially in phases, the second input of the winding is formed by conclusions from the connection points of the half-phases with the number of poles 2p ₀ . In this case, the beginning and end of each phase is connected to the contacts of the switch.

The task is also achieved by the fact that the phases of a single-layer four-zone winding made of half-phases (A _q x _q ) _p0 and (X _q a _q ) _p0 - the first phase, (B _q y _q ) _p0 and (Y _q b _q ) _p0 - the second phases, (C _q z _q ) _p0 and (Z _q c _q ) _p0 , - of the third phase can be included in the opposite direction. The end of the first phase is connected to the connection point of the half-phases of the second phase, the end of the second phase is connected to the connection point of the half-phases of the third phase, the end of the third phase is connected to the connection point of the half-phases of the first phase, forming a connection diagram of the star windings with the inner triangle Y-Δ. The beginning of the phases form the first input of the winding with the number of poles 2p ₀ . When sequentially switching on the half-phases in phases, the second input of the winding is formed by the conclusions from the connection points of the half-phases with the number of poles 4p ₀ .

The task is also achieved by the fact that the phases of a single-layer four-zone winding made of half-phases (A _q x _q ) _p0 and (X _q a _q ) _p0 - the first phase, (B _q y _q ) _p0 and (Y _q b _q ) _p0 - the second phases, (C _q z _q ) _p0 and (Z _q c _q ) _p0 - of the third phase can be included according to. The end of the first phase is connected to the connection point of the half-phases of the second phase, the end of the second phase is connected to the connection point of the half-phases of the third phase, the end of the third phase is connected to the connection point of the half-phases of the first phase, forming a connection diagram of the star windings with the inner triangle Y-Δ. The beginning of the phases form the first input of the winding with the number of poles 4p ₀ . When the half-phases are sequentially switched on in phases, the second input of the winding is formed by the terminals from the connection points of the half-phases.

The task is also achieved by the fact that the phases of the two-layer four-zone winding made of half-phases (A _k x _k ) _p0 and (X _k a _k ) _p0 - the first phase, (B _k y _k ) _p0 and (Y _k b _k ) _p0 - the second phases, (C _to z _to ) _p0 and (Z _to c _to ) _p0 - of the third phase can be included in the opposite direction. The phases are connected in a star and the beginning of the phases form the first input of the winding with the number of poles 2p ₀ . When sequentially switching on the half-phases in phases, the second input of the winding is formed by the conclusions from the connection points of the half-phases with the number of poles 4p ₀ . In this case, the beginning and end of each phase is connected to the contacts of the switch.

The task is also achieved by the fact that the phases of the two-layer four-zone winding made of half-phases (A _k x _k ) _p0 and (X _k a _k ) _p0 - the first phase, (B _k y _k ) _p0 and (Y _k b _k ) _p0 - the second phases (C _to z _to ) _p0 and (Z _to c _to ) _p0 - of the third phase can be included according to. In this case, the phases are connected into a star and the beginning of the phases form the first input of the winding with the number of poles 4p ₀ . When the half-phases are switched on sequentially in phases, the second input of the winding is formed by conclusions from the connection points of the half-phases with the number of poles 2p ₀ . In this case, the beginnings and ends of the phases are connected to the contacts of the switch.

The task is also achieved by the fact that the phases of the two-layer four-zone winding made of half-phases (A _k x _k ) _p0 and (X _k a _k ) _p0 - the first phase, (B _k y _k ) _p0 and (Y _k b _k ) p ₀ - the second phase, (C _to z _to ) _p0 and (Z _to c _to ) _p0 - the third phase can be included counter. The phases are connected in a triangle and the beginning of the phases form the first input of the winding with the number of poles 2p ₀ . When sequentially switching on the half-phases in phases, the second input of the winding is formed by the conclusions from the connection points of the half-phases with the number of poles 4p ₀ . In this case, the beginning and end of each phase is connected to the contacts of the switch.

The task is also achieved by the fact that the phases of the two-layer four-zone winding made of half-phases (A _k x _k ) _p0 and (X _k a _k ) _p0 are the first phase, (B _k y _k ) _p0 and (Y _k b _k ) _p0 are the second phase (C _to z _to ) _p0 and (Z _to c _to ) _p0 - the third phase can be included according to. The phases are connected in a triangle and the beginning of the phases form the first input of the winding with the number of poles 4p ₀ . When the half-phases are switched on sequentially in phases, the second input of the winding is formed by conclusions from the connection points of the half-phases with the number of poles 2p ₀ . In this case, the beginning and end of each phase is connected to the contacts of the switch.

The task is also achieved by the fact that the phases of the two-layer four-zone winding made of half-phases (A _k x _k ) _p0 and (X _k a _k ) _p0 -first phase, (B _k y _k ) _p0 and (Y _k b _k ) _p0 - second phases, (C _to z _to ) _p0 and (Z _to c _to ) _p0 - of the third phase can be included in the opposite direction. The end of the first phase is connected to the connection point of the half-phases of the second phase, the end of the second phase is connected to the connection point of the half-phases of the third phase, the end of the third phase is connected to the connection point of the half-phases of the first phase, forming a connection diagram of the star windings with the inner triangle Y-Δ. The beginning of the phases form the first input of the winding with the number of poles 2p ₀ . When sequentially switching on the half-phases in phases, the second input of the winding is formed by the conclusions from the connection points of the half-phases with the number of poles 4p _0.

The task is also achieved by the fact that the phases of the two-layer four-zone winding made of half-phases (A _k x _k ) _p0 and (X _k a _k ) _p0 - the first phase, (B _k y _k ) _p0 and (Y _k b _k ) _p0 - the second phases, (C _to z _to ) _p0 and (Z _to c _to ) _p0 - of the third phase can be included according to. The end of the first phase is connected to the connection point of the half-phases of the second phase, the end of the second phase is connected to the connection point of the half-phases of the third phase, the end of the third phase is connected to the connection point of the half-phases of the first phase, forming a connection diagram of the star windings with the inner triangle Y-Δ. The beginning of the phases form the first input of the winding with the number of poles 4p ₀ . When the half-phases are sequentially switched on in phases, the second input of the winding is formed by the terminals from the connection points of the half-phases.

In FIG. 1 shows a design of a single-layer three-phase winding of electrical machines with on-off switching of half-phases, and FIG. 2 shows its matrix description; in FIG. 3 shows a design of a two-layer three-phase winding of electrical machines with on-off switching of half-phases, and FIG. 4 shows its matrix description; in FIG. 5 shows the phase connection diagram of the three-phase winding of electric machines with the number of poles 2P ₀ in the star (Y) and in the star with two parallel branches in each phase (Y with a = 2) with the number of poles 4P ₀ ; in FIG. 6 is a diagram of the connection of the phases of a three-phase winding of electric machines with the number of poles 2P ₀ into a triangle (Δ) and into a star with two parallel branches in each phase (Y with a = 2) with the number of poles 4P ₀ ; in FIG. 7 is a diagram of the connection of the phases of a three-phase winding of electric machines into a star with an inner triangle (Y-Δ) with a counter-inclusion of half-phases. In FIG. 8 shows a phase connection diagram of a three-phase winding of electric machines with a number of poles 2P ₀ in a star with two parallel branches in each phase (Y at a = 2) and in a star with the number of poles 4P ₀ (Y); in FIG. 9 is a diagram of the connection of the phases of a three-phase winding of electric machines with the number of poles 2P ₀ into a star with two parallel branches in each phase (Y with a = 2) and into a triangle with the number of poles 4P ₀ (Δ); in FIG. 10 is a diagram of the phase connection of a three-phase winding of electrical machines into a star with an inner triangle (Y-Δ) with the consonant inclusion of half-phases. In FIG. 11 shows a design of a single-layer three-phase winding of an electric machine with the consonant inclusion of half-phases and its matrix description; in FIG. 12 shows a design of a two-layer three-phase winding of electrical machines with the consonant inclusion of half-phases and its matrix description.

The winding of an electric three-phase alternating current machine (Fig. 1 ÷ 12). The winding contains n-phase zones in each phase on a pair of poles (Fig. 1, 3), the number of which is four (n = 4 - four-zone winding). Moreover, in each phase, within each pair of phase zones, a coil group with a step is laid in the grooves of the magnetic circuit

y _cp = Z / (np ₀ ) = 24 / (4 · 1) = 6.

The coil groups of each phase form two half phases 1 ÷ 6 (Fig. 5 ÷ 10).

When the number of pairs of poles of the winding p _{0 is} equal to 1 (Fig. 1 ÷ 4, 11, 12), the coil of the winding is placed in the Z grooves of the magnetic circuit, the number of grooves is 24. The number of serially connected coils forming a coil group is equal to the number of grooves per pole and phase q equal to 2 (Fig. 1, 2, 11) for three-phase windings with a diametrical pitch y _cp and equal to 3 (Fig. 3, 4, 12) for three-phase windings with a shortened pitch, where the average pitch of the winding in grooves is

y _cp = Σy _i / q.

The number of phases m, the number of phase zones n, the number of coils q and the number Z of grooves of the magnetic circuit are related by

z = nmp ₀ q.

For a three-phase single-layer winding (Fig. 1, 2)

Z = 4 · 3 · 1 · 2 = 24.

With the number of pole pairs of the winding p ₀ = 1 (Fig. 1 ÷ 4, 11 ÷ 14), the number of coil groups on a pair of poles in each phase is n / 2 = 2 and each coil group of each phase forms a half phase 1 ÷ 6 (Fig. 5 ÷ 10, 15, 17).

With the number of pole pairs of the winding p ₀ ≥2 for the m-phase winding, the number of coil groups in the half phases of each phase is p ₀ .

The implementation of the m-phase winding of an electric four-zone alternating current machine (n = 4) provides a reduction in copper consumption by reducing the average length of the coil and the departure of the frontal parts.

So, for the loose windings of an electric machine of alternating current, the length of the turn and departure of the frontal part are equal

L _l = K _l · b _ct , L _howl = K _howl · b _ct ,

where b _ct is the average width of the coil

b _ct = π (D + h _n1 ) / (n · p ₀ ) = τn,

where D is the diameter of the stator bore, h _p1 is the height of the stator groove, n is the number of phase zones in each phase on a pair of poles, and p ₀ is the number of pole pairs of the compared windings.

For two-zone windings (n = 2), the length of the turn and take-off of the frontal part are equal at p ₀ = 1

L _{ln = 2} = 1,2 · π (D + h _п1 ) / (n · p ₀ ) = 1,2 · π (D + h _п1 ) / 2,

L _{voln = 2} = 0.26 · π (D + h _п1 ) / (n · p ₀ ) = 0.26 · π (D + h _п1 ) / 2,

and for four-zone windings (n = 4), the length of the turn and the frontal take-off are equal at p ₀ = 1

L _{ln = 4} = 1.3 · π (D + h _п1 ) / (n · p ₀ ) = 1.2 · π (D + h _п1 ) / 4,

L _{vyln = 4} = 0.4 · π · (D + h _п1 ) / (n · p ₀ ) = 0.26 · π (D + h _п1 ) / 4,

and the ratio of lengths for n = 4 and n = 2 is

L _{sc = 4} / L _{ln = 2} = 0.542 and L _{sc = 4} / L _{sc = 2} = 0.77.

Thus, the four-zone winding has a frontal turn coil length of 1.846 times less and the frontal part departure value is 1.3 times less at p ₀ = 1 than the two-zone winding.

How much the copper consumption of the four-zone (n = 4) winding of an alternating current electric machine can be reduced by the ratio of the average turns length

L _{cpn = 4} / L _{cpn = 2} = (L _p + L _{ln = 4} ) / (L _p + L _{ln = 2} ) = 0.724,

where L _p = 0,6 · τ _{n = 2} - the length of the groove part of the average length of the coil at p ₀ = 1 (the estimated coefficients are determined by the textbook for universities "Designing of electrical machines / edited by IP Kopylov. - M .: Energy, S. 495 "), i.e. the reduction ratio of copper is 1 / 0.724 = 1.38.

The smaller pitch of the four-zone winding in the grooves changes the electrical and magnetic properties of the winding. So, the active and inductive phase resistance due to the frontal parts of the windings decreases.

When performing a three-phase (m = 3) four-zone single-layer winding with the same number of grooves q per pole, phase and phase zone, the sides of the coils in the grooves have the distribution of the sides of the coils in the grooves according to the law (Fig. 1)

(A _q b _q Z _{q q q q} B _q c _q X _q y _q C _q a _q Y _q z _q ) p ₀ ,

where "A, a and X, x" are the phase zones of the first phase of the four-zone winding, "B, b and Y, y" are the phase zones of the second phase of the four-zone winding, and "C, c and Z, z" are the phase zones of the third phase four-zone winding

where (A _q x _q ) _p0 (X _q a _q ) _p0 are the coil groups 1 and 4, respectively, forming the half phases of the first phase of the four-zone winding, (B _q y _q ) _p0 (Y _q b _q ) _p0 are the coil groups, respectively, 2 and 5, forming the half-phases of the second phase of the four-zone winding, and (C _q z _q ) _p0 (Z _q c _q ) _p0 are the coil groups 3 and 6, respectively, forming the half-phases of the third phase of the four-zone winding (Fig. 5 ÷ 7).

Index "q" is the number of coil sides placed side by side in the corresponding phase zone and having the same current direction in the phase zones "A, a, B, b and C, c" in one direction (for example, up), and in the phase zones " X, x, Y, y and Z, z "to the other side (for example, down), while I concentric winding coils sequentially connected within each phase zone are made with a step y _cp equal to (Fig. 1, 2)

y _cp = τ = Z / (np ₀ ) = 24 / (4 · 1) = 6,

those. y ₁ = 7, y ₂ = 5 and y _cp = (7 + 5) / 2 = 6.

In the general case, a four-zone winding can be made both concentric and equisectional.

To perform an analysis of the design of the windings for efficiency, we use a number of components of the matrix model of AC windings:

- EMF winding

|| E _obv || = E _prν · U _pm · [|| C _P || · || E _prν ||],

where || C _P || is the matrix of the studied winding (Fig. 2),

E _prν - the magnitude of the induction EMF of the conductor from the ν _-th field harmonic;

are winding coefficients for the νth harmonics

,

,

where || C _P || _{m is the} matrix of the mth row of the winding matrix || C _P ||,

| a _mi | - the sum of the numbers of elements of the row (phase) of the winding matrix modulo.

For the analysis of the winding, the column matrix of the star of the slotted emf || E _prν || Elements of a column matrix are determined by the expression:

,

,

where ν is the number of the harmonic component of the emf (n.s), Z _i is the groove number from 1 to Z ₀ ,

α _ν = α ₀ · ν;

and the angle of shift of the grooves α ₀ for windings that do not create subharmonics of the magnetic field is

α ₀ = p · 360 ° / Z ₀ , el. hail.

For analytical calculations using the Euler formula

,

,

should go from expression (4) to algebraic expressions:

;

;

;

;

.

.

The winding coefficient for each of the harmonics of the EMF (NS) is determined by the ratio:

.

.

In the matrix description of a single-layer three-phase winding of electric machines with the number of poles of the winding 2p ₀ = 2 and the number of grooves Z ₀ = 24, shown in FIG. 2, the sum of the numbers of elements of the row (phase) of the winding matrix modulo | a _mi | = 8 and the angle of the shift of the grooves α ₀ = 15 e. degrees. For the working harmonic of the field ν = 1, the winding coefficient K _ob1 = 0.701, which ensures the creation of a working magnetic flux and the operability of an electric machine.

When performing a three-phase (m = 3) four-zone two-layer concentric winding with the number of coils K in the coil group, the sides K of the coils connected in series are laid in the grooves of the magnetic circuit within each pair of phase zones in the adjacent grooves K, where K is

K = q + t,

and the pitch of concentric coils in the grooves is determined by the relations

y _cp + 2t, ..., y _cp , ..., y _cp -2t,

where y _cp = τ = Z (np ₀ ) and t is the shortening step selected from 1 to q, with alternating phase zones in the sequence (Fig. 3)

(A _to b _to Z _to x _to B _to c _to X _to y _to C _to a _to Y _to z _to ) _p0 ,

where "A, a and X, x" are the phase zones of the first phase of the four-zone winding, "B, b and Y, y" are the phase zones of the second phase of the four-zone winding, and "C, c and Z, z" are the phase zones of the third phase four-zone winding

where (A _k x _k ) _p0 and (X _k a _k ) _p0 are coil groups 1 and 4, respectively, forming the half-phases of the first phase of the four-zone winding, (B _k Y _k ) _p0 and (Y _k b _k ) _p0 are coil groups, respectively 2 and 5, forming the half phases of the second phase of the four-zone winding, and (C _to z _к ) _p0 and (Z _to c _to ) _p0 are the coil groups 3 and 6, respectively, forming the half-phases of the third phase of the four-zone winding (Fig. 5 ÷ 7).

Index "K" is the number of coil sides located side by side in the corresponding phase zone and having the same current direction in the phase zones "A, a, B, b and C, c" - in one direction (for example, up). And in the phase zones "X, x, Y, y and Z, z" - in the other direction (for example, down). The number of turns in the coils is determined by the fact that the number of conductors of the two-layer winding in the grooves of the magnetic circuit is the same (Fig. 3, 4).

When the number of coils K = 3 (Fig. 3, 4) in the coil group connected in series, and the shortening step t = 1, the step of the concentric coils in the grooves is determined by the relations

y _cp + 2t = 8 y _cp = 6 y _cp -2t = 4,

where y _cp = τ = Z / (np ₀ ) = 24 / (4 · 1) = 6, i.e. y ₁ = 7, y ₂ = 5 and y _cp = (7 + 5) / 2 = 6.

In the matrix description (Fig. 4) of a single-layer three-phase winding of electric machines with the number of poles of the winding 2p ₀ = 2 and the number of grooves Z ₀ = 24, the sum of the number of elements of the row (phase) of the winding matrix but with the module | a _mi | = 16 and the angle of the shift of the grooves α ₀ = 15 email degrees. For the working harmonic of the field ν = 1, the winding coefficient K _ob1 = 0.695, which ensures the creation of a working magnetic flux and the operability of an electric machine.

The phases of the three-phase (m = 3) four-zone single-layer winding (Fig. 5) are made of half-phases. The first phase (U1U2) from the coil groups 1 - (A _q x _q ) _p0 with the beginning of 7, the end of 8 and 4 - (X _q a _q ) _p0 with the beginning of 9, the end of 10 (Fig. 1, 2). The second phase (V1V2) from the coil groups 2 - (B _q y _q ) _p0 with the beginning 11, the end 12 and 5 - (Y _q b _q ) _p0 with the beginning 13, the end 14. The third phase (W1W2) from the coil groups 3 - (C _q zq) _p0 with beginning 15, end 16 and 6 - (Z _q c _q ) p ₀ with beginning 17, end 18. Coil groups (half phases) 1 and 4, 2 and 5, 3 and 6 in the phase are turned on counter (sequentially or in parallel).

The phases (Fig. 5) are connected in a star: the ends of phases U2 - 9, V2 - 13, W2 - 17 are combined, and the beginning of phases U1 - 7, V1 - 11, W2 - 15 form the first input of the winding with the number of poles 2p ₀ .

In the matrix description (Fig. 2) of a single-layer three-phase winding of electrical machines (Fig. 5) with the number of grooves Z ₀ = 24 and the number of poles of the winding 2p ₀ = 2, the sum of the number of elements of the row of the winding matrix modulo a _mi | = 8 and the angle of shift of the grooves α ₀ = 15 email degrees. For the working harmonics of the field V = 1, we obtain the winding coefficient K _ob1 = 0.701.

With the serial connection of the half phases (Fig. 5) 1 and 4, 2 and 5, 3 and 6 in phases, the second input of the winding is formed by the terminals L1 - 19, L2 - 20, L3 - 21 from the connection points of the half phases 8 and 10, 12 and 14, 16 and 18 with the number of poles 4p ₀ .

The beginning and end of each phase 7 and 9, 11 and 13, 15 and 17 are connected to the contacts of the switch 22, which are closed, providing a connection of the half phases 1 and 4, 2 and 5, 3 and 6 in phases according to the star scheme with two parallel branches in each phase (Y with a = 2).

In the matrix description (Fig. 11) of a single-layer three-phase winding of electric machines with the number of poles of the winding 2p ₀ = 4 and the number of grooves Z ₀ = 24, the sum of the number of elements of the row (phase) of the winding matrix modulo | a _mi | = 8 and the angle of shift of the grooves α ₀ = 30 email degrees. For the working harmonic of the field ν = 1, the winding coefficient K _ob1 = 0.966, which ensures the creation of a working magnetic flux and the operability of an electric machine.

The phases of the three-phase (m = 3) four-zone single-layer winding (Fig. 8, 11) are made of half-phases. The first phase (L1M1) from the coil groups 1 - (A _q x _q ) _p0 with beginning 7, end 8 and 4 - (X _q a _q ) _p0 with beginning 9, end 10 (Fig. 11). The second phase (L2M2) from the coil groups 2 - (B _q y _q ) _p0 with the beginning 11, the end 12 and 5 - (Y _q b _q ) _p0 with the beginning 13, the end 14. The third phase (L3M3) from the coil groups 3 - (C _q zq) _p0 with beginning 15, end 16 and 6 - (Z _q c _q ) _p0 with beginning 17, end 18. Coil groups (half phases) 1 and 4, 2 and 5, 3 and 6 in phase are included according to ( sequentially or in parallel).

The phases (Fig. 8) are connected in a star: the ends of phases M1 - 10, M2 - 14, M3 - 18 are combined, and the beginning of phases L1 - 7, L2 - 11, L3 - 15 form the first input of the winding with the number of poles 4p ₀ .

In the matrix description (Fig. 11) of a single-layer three-phase winding of electric machines with the number of poles of the winding 2p ₀ = 4 and the number of grooves Z ₀ = 24, the sum of the number of elements of the row (phase) of the winding matrix modulo | a _mi | = 8 and the angle of shift of the grooves α ₀ = 30 email degrees. For the working harmonic of the field ν = 1, the winding coefficient K _ob1 = 0.966, which ensures the creation of a working magnetic flux and the operability of an electric machine.

With the serial connection of the half phases (Fig. 8) 1 and 4, 2 and 5, 3 and 6 in phases, the second input of the winding is formed by terminals U1 - 19, V1 - 20, W1 - 21 from the connection points of the half phases 8 and 9, 12 and 13, 16 and 17 with the number of poles 2p ₀ .

The beginning and end of each phase 7 and 10, 11 and 14, 15 and 18 are connected to the contacts of the switch 22, which are closed, providing a connection of the half phases 1 and 4, 2 and 5, 3 and 6 in phases according to the star scheme with two parallel branches in each phase (Y with a = 2).

The matrix description of a single-layer three-phase winding of an electric machine with the number of poles of the winding 2p ₀ = 2 by the number of grooves Z ₀ = 24 is shown in figure 2, where the sum of the numbers of elements of the row (phase) of the winding matrix modulo | a _mi | = 8 and the angle of shift of the grooves α ₀ = 15 email degrees. For the working harmonic of the field ν = 1, the winding coefficient K _ob1 = 0.701.

The phases of the three-phase (m = 3) four-zone single-layer winding (Fig. 6) are made of half-phases. The first phase (U1U2) from the coil groups 1 - (A _q x _q ) _p0 with the beginning of 7, the end of 8 and 4 - (X _q a _q ) _p0 with the beginning of 9, the end of 10 (Fig. 1, 2). The second phase (V1V2) from the coil groups 2 - (B _q y _q ) _p0 with the beginning 11, the end 12 and 5 - (Y _q b _q ) _p0 with the beginning 13, the end 14. The third phase (W1W2) from the coil groups 3 - (C _q z _q ) _p0 with beginning 15, end 16 and 6 - (Z _q c _q ) _p0 with beginning 17, end 18. Coil groups (half phases) 1 and 4, 2 and 5, 3 and 6 in the phase are turned on counter (sequentially or in parallel).

The phases (Fig. 6) are connected in a triangle: the end of phase U2 - 9 with the beginning of V1 - 11, the end of phase V2 with the beginning of W1 - 15, the end of phase W2 - 17 with the beginning of U1 - 7, and the beginning of phases U1 - 7, V1 - 11, W1 - 15 form the first input of the winding with the number of poles 2p ₀ .

In the matrix description (Fig. 2) of a single-layer three-phase winding of electrical machines (Fig. 6) with the number of slots Z ₀ = 24 and the number of poles of the winding 2p ₀ = 2, the sum of the number of elements of the row of the winding matrix modulo a _mi | = 8 and the angle of the grooves shift α ₀ = 15 email degrees. For the working harmonic of the field ν = 1, we obtain the winding coefficient K _ob1 = 0.701.

With the serial connection of the half phases (Fig. 6) 1 and 4, 2 and 5, 3 and 6 in phases, the second winding input is formed by the terminals L1 - 19, L2 - 20, L3 - 21 from the connection points of the half phases 8 and 10, 12 and 14, 16 and 18 with the number of poles 4p ₀

The beginning and end of each phase 7 and 9, 11 and 13, 15 and 17 are connected to the contacts of the switch 22, which are closed, providing a connection of the half phases 1 and 4, 2 and 5, 3 and 6 in phases according to the star scheme with two parallel branches in each phase (Y with a = 2).

In the matrix description (Fig. 11) of a single-layer three-phase winding of electric machines with the number of poles of the winding 2p ₀ = 4 and the number of grooves Z ₀ = 24, the sum of the number of elements of the row (phase) of the winding matrix modulo | а _mi | = 8 and the angle of the groove shift α ₀ = 30 email degrees. For the working harmonic of the field ν = 1, the winding coefficient K _ob1 = 0.966.

The phases of the three-phase (m = 3) four-zone single-layer winding (Fig. 9, 11) are made of half-phases. The first phase (L1M1) from the coil groups 1 - (A _q x _q ) _p0 with beginning 7, end 8 and 4 - (X _q a _q ) _p0 with beginning 9, end 10 (Fig. 11). The second phase (L2M2) from the coil groups 2 - (B _q a _q ) _p0 with the beginning 11, the end 12 and 5 - (Y _q b _q ) _p0 with the beginning 13, the end 14. The third phase (L3M3) from the coil groups 3 - (C _q z _q ) _p0 with beginning 15, end 16 and 6 - (Z _q c _q ) with beginning 17, end 18. Coil groups (half phases) 1 and 4, 2 and 5, 3 and 6 in the phase are included according to ( sequentially or in parallel).

The phases (Fig. 9) are connected in a triangle: the end of phase M1 - 10 with the beginning of L2 - 11, the end of phase M2 - 14 with the beginning of L3 - 15, the end of phase M3 - 18 with the beginning of L1 - 7, and the beginning of phases L1 - 7, L2 - 11, L3 - 15 form the first input of the winding with the number of poles 4p ₀ .

In the matrix description (Fig. 11) of a single-layer three-phase winding of electric machines with the number of poles of the winding 2p ₀ = 4 and the number of grooves Z ₀ = 24, the sum of the number of elements of the row (phase) of the winding matrix modulo | a _mi | = 8 and the angle of shift of the grooves α ₀ = 30 email degrees. For the working harmonic of the field ν = 1, the winding coefficient K _ob1 = 0.966.

With the sequential (Fig. 9) switching on the half phases 1 and 4, 2 and 5, 3 and 6 in phases, the second input of the winding is formed by terminals U1 - 19, V1 - 20, W1 - 21 from the connection points of the half phases 8 and 9, 12 and 13, 16 and 17 with the number of poles 2p ₀ .

The beginning and end of each phase 7 and 10, 11 and 14, 15 and 18 are connected to the contacts of the switch 22, which are closed, providing a connection of the half phases 1 and 4, 2 and 5, 3 and 6 in phases according to the star scheme with two parallel branches in each phase (Y with a = 2).

The matrix description of a single-layer three-phase winding of an electric machine with the number of poles of the winding 2p ₀ = 2 by the number of slots Z ₀ = 24 is shown in FIG. 2, where the sum of the numbers of elements of the row (phase) of the winding matrix modulo | a _mi | = 8 and the angle of the shift of the grooves α ₀ = 15 e. degrees. For the working harmonic of the field ν = 1, the winding coefficient K _ob1 = 0.701.

The phases of the three-phase (m = 3) four-zone two-layer winding (Fig. 5) are made of half-phases. The first phase (U1U2) from the coil groups 1 - (A _to x _k ) _p0 with beginning 7, end 8 and 4 - (X _to a _k ) _p0 with beginning 9, end 10 (Fig. 1, 2). The second phase (V1V2) from the coil groups 2 - (B _to y _k ) _p0 with the beginning 11, the end of 12 and 5 - (Y _to b _k ) _p0 with the beginning 13, the end 14. The third phase (W1W2) from the coil groups 3 - (C _to z _k ) _p0 with beginning 15, end 16 and 6 - (Z _to c _k ) _p0 with beginning 17, end 18. Coil groups (half phases) 1 and 4, 2 and 5, 3 and 6 in the phase are turned on counter (sequentially or in parallel).

The phases (Fig. 5) are connected in a star: the ends of phases U2 - 9, V2 - 13, W2 - 17 are combined, and the beginning of phases U1 - 7, V1 - 11, W2 - 15 form the first input of the winding with the number of poles 2p ₀ .

With a matrix description (Fig. 4) of a two-layer three-phase winding of electric machines (Fig. 5) with the number of slots Z ₀ = 24 and the number of poles of the winding 2p ₀ = 2, the sum of the number of elements of the row of the winding matrix modulo a _mi | = 16 and the angle of the grooves shift α ₀ = 15 email degrees. For the working harmonic of the field ν = 1, we obtain the winding coefficient K _ob1 = 0.695.

With the serial connection of the half phases (Fig. 5) 1 and 4, 2 and 5, 3 and 6 in phases, the second input of the winding is formed by the terminals L1 - 19, L2 - 20, L3 - 21 from the connection points of the half phases 8 and 10, 12 and 14, 16 and 18 with the number of poles 4p ₀ .

The beginning and end of each phase 7 and 9, 11 and 13, 15 and 17 are connected to the contacts of the switch 22, which are closed, providing a connection of the half phases 1 and 4, 2 and 5, 3 and 6 in phases according to the star scheme with two parallel branches in each phase (Y with a = 2).

With a matrix description (Fig. 12) of a two-layer three-phase winding of electric machines with the number of poles of the winding 2p ₀ = 4 and the number of grooves Z ₀ = 24, the sum of the number of elements of the row (phase) of the winding matrix modulo | a _mi | = 16 and the angle of the shift of the grooves α ₀ = 30 email degrees. For the working harmonic of the field ν = 1, the winding coefficient K _ob1 = 0.933.

The phases of the three-phase (m = 3) four-zone two-layer winding (Fig. 8, 11) are made of half-phases. The first phase (L1M1) from the coil groups 1 - (A _to x _k ) _p0 with beginning 7, end 8 and 4 - (X _to a _k ) _p0 with beginning 9, end 10 (Fig. 11). The second phase (L2M2) from the coil groups 2 - (B _to y _k ) _p0 with the beginning 11, the end 12 and 5 - (Y _to b _k ) _p0 with the beginning 13, the end 14. The third phase (L3M3) from the coil groups 3 - (C _to z _k ) _p0 with beginning 15, end 16 and 6 - (Z _to c _k ) _p0 with beginning 17, end 18. Coil groups (half phases) 1 and 4, 2 and 5, 3 and 6 in phase are included according to (sequentially or in parallel).

The phases (Fig. 8) are connected in a star: the ends of phases M1 - 10, M2 - 14, M3 - 18 are combined, and the beginning of phases L1 - 7, L2 - 11, L3 - 15 form the first input of the winding with the number of poles 4p ₀ .

With a matrix description (Fig. 12) of a two-layer three-phase winding of electric machines with the number of poles of the winding 2p ₀ = 4 and the number of grooves Z ₀ = 24, the sum of the number of elements of the row (phase) of the winding matrix modulo | a _mi | = 16 and the angle of the shift of the grooves α ₀ = 30 email degrees. For the working harmonic of the field ν = 1, the winding coefficient K _ob1 = 0.933.

With the serial connection of the half phases (Fig. 8) 1 and 4, 2 and 5, 3 and 6 in phases, the second input of the winding is formed by terminals U1 - 19, V1 - 20, W1 - 21 from the connection points of the half phases 8 and 9, 12 and 13, 16 and 17 with the number of poles 2p ₀ .

The beginning and end of each phase 7 and 10, 11 and 14, 15 and 18 are connected to the contacts of the switch 22, which are closed, providing a connection of the half phases 1 and 4, 2 and 5, 3 and 6 in phases according to the star scheme with two parallel branches in each phase (Y with a = 2).

The matrix description of the two-layer three-phase winding of an electric machine with the number of poles of the winding 2p ₀ = 2 by the number of slots Z ₀ = 24 is shown in FIG. 4, where the sum of the numbers of elements of the row (phase) of the winding matrix modulo | a _mi | = 16 and the angle of the shift of the grooves α ₀ = 15 e. degrees. For the working harmonics of the field V = 1, the winding coefficient K _ob1 = 0.695.

The phases of the three-phase (m = 3) four-zone two-layer winding (Fig. 6) are made of half-phases. The first phase (U1U2) from the coil groups 1 - (A _to x _k ) _p0 with the beginning 7, the end of 8 and 4 - (X _to a _k ) _p0 with the beginning 9, the end 10 (Fig. 3, 4). The second phase (V1V2) from the coil groups 2 - (B _to y _k ) _p0 with the beginning 11, the end of 12 and 5 - (Y _to b _k ) _p0 with the beginning 13, the end 14. The third phase (W1W2) from the coil groups 3 - (C _to z _к ) _p0 with the beginning 15, end 16 and 6 - (Z _to c _k ) _p0 with the beginning 17, end 18. Coil groups (half phases) 1 and 4, 2 and 5, 3 and 6 in the phase are turned on counter (sequentially or in parallel).

The phases (Fig. 6) are connected in a triangle: the end of phase U2 - 9 with the beginning of V1 - 11, the end of phase V2 with the beginning of W1 - 15, the end of phase W2 - 17 with the beginning of U1 - 7, and the beginning of phases U1 - 7, V1 - 11, W1 - 15 form the first input of the winding with the number of poles 2p ₀ .

In the matrix description (Fig. 4) of a single-layer three-phase winding of electrical machines (Fig. 6) with the number of slots Z ₀ = 24 and the number of poles of the winding 2p ₀ = 2, the sum of the number of elements of the row of the winding matrix modulo | a _mi | = 16 and the angle of shift grooves α ₀ = 15 el. degrees. For the working harmonic of the field V = 1, we obtain the winding coefficient K _ob1 = 0.695.

With the serial connection of the half phases (Fig. 6) 1 and 4, 2 and 5, 3 and 6 in phases, the second winding input is formed by the terminals L1 - 19, L2 - 20, L3 - 21 from the connection points of the half phases 8 and 10, 12 and 14, 16 and 18 with the number of poles 4p ₀

The beginning and end of each phase 7 and 9, 11 and 13, 15 and 17 are connected to the contacts of the switch 22, which are closed, providing a connection of the half phases 1 and 4, 2 and 5, 3 and 6 in phases according to the star scheme with two parallel branches in each phase (Y with a = 2).

In the matrix description (Fig. 12) of a single-layer three-phase winding of electrical machines with the number of poles of the winding 2p ₀ = 4 and the number of grooves Z ₀ = 24, the sum of the number of elements of the row (phase) of the winding matrix modulo | a _mi | = 16 and the angle of shift of the grooves α ₀ = 30 email degrees. For the working harmonic of the field ν = 1, the winding coefficient K _ob1 = 0.933.

The phases of the three-phase (m = 3) four-zone two-layer winding (Fig. 9, 12) are made of half-phases. The first phase (L1M1) from the coil groups 1 - (A _to x _k ) _p0 with beginning 7, end 8 and 4 - (X _to a _k ) _p0 with beginning 9, end 10 (Fig. 11). The second phase (L2M2) from the coil groups 2 - (B _to y _k ) _p0 with the beginning 11, the end 12 and 5 - (Y _to b _k ) _p0 with the beginning 13, the end 14. The third phase (L3M3) from the coil groups 3 - (C _to z _to ) _p0 with the beginning of 15, the end of 16 and 6 - (Z _to c _to ) _p0 with the beginning of 17, the end of 18. Coil groups (half phases) 1 and 4, 2 and 5, 3 and 6 in the phase are included according to (sequentially or in parallel).

The phases (Fig. 9) are connected in a triangle: the end of phase M1 - 10 with the beginning of L2 - 11, the end of phase M2 - 14 with the beginning of L3 - 15, the end of phase M3 - 18 with the beginning of L1 - 7, and the beginning of phases L1 - 7, L2 - 11, L3 - 15 form the first input of the winding with the number of poles 4p ₀ .

With a matrix description (Fig. 12) of a two-layer three-phase winding of electric machines with the number of poles of the winding 2p ₀ = 4 and the number of grooves Z ₀ = 24, the sum of the number of elements of the row (phase) of the winding matrix modulo | a _mi | = 16 and the angle of the shift of the grooves α ₀ = 30 email degrees. For the working harmonic of the field ν = 1, the winding coefficient K _ob1 = 0.933.

With the sequential (Fig. 9) switching on the half phases 1 and 4, 2 and 5, 3 and 6 in phases, the second input of the winding is formed by terminals U1 - 19, V1 - 20, W1 - 21 from the connection points of the half phases 8 and 9, 12 and 13, 16 and 17 with the number of poles 2p ₀

The beginning and end of each phase 7 and 10, 11 and 14, 15 and 18 are connected to the contacts of the switch 22, which are closed, providing a connection of the half phases 1 and 4, 2 and 5, 3 and 6 in phases according to the star scheme with two parallel branches in each phase (Y with a = 2).

The matrix description of the two-layer three-phase winding of an electric machine with the number of poles of the winding 2p ₀ = 2 by the number of slots Z ₀ = 24 is shown in FIG. 4, where the sum of the numbers of elements of the row (phase) of the winding matrix modulo | a _mi | = 16 and the angle of the shift of the grooves α ₀ = 15 e. degrees. For the working harmonic of the field ν = 1, the winding coefficient K _ob1 = 0.695.

The phases of the three-phase (m = 3) four-zone single-layer winding (Fig. 7) are made of half-phases. The first phase (U1U2) from the coil groups 1 - (A _q x _q ) _p0 with beginning 7, end 8 and 4 - (X _q a _q ) _p0 with beginning 9, end 10 (Fig. 1). The second phase (V1V2) from the coil groups 2 - (B _q y _q ) _p0 with the beginning 11, the end 12 and 5 - (Y _q b _q ) _p0 with the beginning 13, the end 14. The third phase (W1W2) from the coil groups 3 - (C _q z _q ) _p0 with beginning 15, end 16 and 6 - (Z _q c _q ) _p0 with beginning 17, end 18. Coil groups (half phases) 1 and 4, 2 and 5, 3 and 6 in the phase are turned on counter sequentially (Fig. 7).

The phases (Fig. 7) are connected according to the star pattern with an inner triangle (Y-Δ) with the on-off switching of half phases: end 8 of coil group 1 - (A _q x _q ) _p0 with end 10 of coil group 4 - (X _q a _q ) _p0 forming the average conclusion of phase 19; the end 12 of the coil group 2 - (B _q y _q ) _p0 with the end 14 of the coil group 5 - (Y _q b _q ) _p0 , forming the average output of phase 20; the end 16 of the coil group 3 - (C _q z _q ) _p0 with the end 18 of the coil group (Z _q c _q ) _p0 , forming the average output of phase 21.

The end of phase U2-9 is connected to the middle terminal of phase V1V2 - 20, the end of phase V2 - 13 is connected to the middle terminal of phase W1W2 - 21, the end of phase W2 - 17 is connected to the middle terminal of phase U1U2 - 19.

The beginning of phases U1 - 7, V1 - 11, W1 - 15 form the first input of the winding with the number of poles 2p ₀ . The middle terminals form the second input of the winding with terminals L1 - 19, L2 - 20, L3 - 21 with the number of poles 4p ₀

In the matrix description of a single-layer three-phase winding of electric machines (Fig. 7) with the number of slots Z ₀ = 24 and the number of poles of the winding 2p ₀ = 2, the sum of the number of elements of the row of the winding matrix modulo | a _mi | = 12, since relative to the line voltage of the network Three reel groups are included. The angle of the shift of the grooves α ₀ = 15 e. degrees. For the working harmonic of the field ν = 1, we obtain the winding coefficient K _ob1 = 0.618

With the serial connection of the half phases (Fig. 7) 1 and 4, 2 and 5, 3 and 6 in phases, the second winding input is formed by the terminals L1 - 19, L2 - 20, L3 - 21 from the connection points of the half phases 8 and 10, 12 and 14, 16 and 18 with the number of poles 4p ₀ . The beginning and end of each phase 7 and 9, 11 and 13, 15 and 17 are connected to the contacts of the switch 22, which are closed, providing a connection of the half phases 1 and 4, 2 and 5, 3 and 6 in phases according to the star scheme with two parallel branches in each phase (Y with a = 2).

In the matrix description of a single-layer three-phase winding of electrical machines (Fig. 1) with the number of poles of the winding 2p ₀ = 4 and the number of grooves Z ₀ = 24, the sum of the number of elements of the row (phase) of the winding matrix modulo | a _mi | = 8 and the angle of the shift of the grooves α ₀ = 30 email degrees. For the working harmonic of the field ν = 1, the winding coefficient K _ob1 = 0.966.

The phases of the three-phase (m = 3) four-zone single-layer winding (Fig. 10) are made of half-phases. The first phase (L1M1) from the coil groups 1 - (A _q x _q ) _p0 with beginning 7, end 8 and 4 - (X _q a _q ) _p0 with beginning 9, end 10 (Fig. 11). The second phase (L2M2) from the coil groups 2 - (B _q y _q ) _p0 with the beginning 11, the end 12 and 5 - (Y _q b _q ) _p0 with the beginning 13, the end 14. The third phase (L3M3) from the coil groups 3 - (C _q z _{q q} ) _p0 with beginning 15, end 16 and 6 - (Z _q c _q ) _p0 with beginning 17, end 18. Coil groups (half phases) 1 and 4, 2 and 5, 3 and 6 in phase are included according to sequentially (Fig. 10).

The phases (Fig. 10) are connected according to the star pattern with an inner triangle (Y-Δ) with the consonant inclusion of half phases: end 8 of coil group 1 - (A _q x _q ) _p0 with beginning 9 of coil group 4 - (X _q a _q ) _p0 forming the average conclusion of phase 19; the end of 12 coil group 2 - (B _q y _q ) _p0 with the beginning of 13 coil group 5 - (Y _q b _q ) _p0 , forming the average output of phase 20; the end of the 16 coil group 3 - (C _q z _q ) _p0 with the beginning of the 17 coil group (Z _q c _q ) _p0 , forming the average output of phase 21.

The end of phase M1 - 10 is connected to the middle terminal of phase L2M2 - 20, the end of phase M2 - 14 is connected to the middle terminal of phase L3M3 - 21, the end of phase M3 - 18 is connected to the middle terminal of phase L1M1 - 19.

The beginning of phases L1 - 7 L2 - 11, L3 - 15 form the first input of the winding with the number of poles 4p ₀ . The middle terminals form the second input of the winding with terminals U1 - 19, V1 - 20, W1 - 21 with the number of poles 2p _0.

In the matrix description of a single-layer three-phase winding of electrical machines (Fig. 10) with the number of slots Z ₀ = 24 and the number of poles of the winding 2p ₀ = 2, the sum of the number of elements of the row of the winding matrix modulo | a _mi | = 12, since relative to the line voltage of the network Three reel groups are included. The angle of the shift of the grooves α ₀ = 30 e. degrees. For the working harmonic of the field ν = 1, we obtain the winding coefficient K _ob1 = 0.852.

With the serial connection of the half phases (Fig. 10) 1 and 4, 2 and 5, 3 and 6 in phases, the second input of the winding is formed by terminals U1 - 19, V1 - 20, W1 - 21 from the connection points of the half phases 8 and 9, 12 and 13, 16 and 17 with the number of poles 2p ₀ . The beginning and end of each phase 7 and 10, 11 and 14, 15 and 18 are connected to the contacts of the switch 22, which are closed, providing a connection of the half phases 1 and 4, 2 and 5, 3 and 6 in phases according to the star scheme with two parallel branches in each phase (Y with a = 2).

In the matrix description of a single-layer three-phase winding of electric machines (Fig. 4) with the number of poles of the winding 2p ₀ = 2 and the number of grooves Z ₀ = 24, the sum of the number of elements of the row (phase) of the winding matrix modulo | a _mi | = 8 and the angle of the shift of the grooves α ₀ = 15 email degrees. For the working harmonic of the field ν = 1, the winding coefficient K _ob1 = 0.701.

The phases of the three-phase (m = 3) four-zone two-layer winding (Fig. 7) are made of half-phases. The first phase (U1U2) from the coil groups 1 - (A _to x _k ) _p0 with beginning 7, end 8 and 4 - (X _to a _k ) _p0 with beginning 9, end 10 (Fig. 3). The second phase (V1V2) from the coil groups 2 - (B _to y _k ) _p0 with the beginning 11, the end of 12 and 5 - (Y _to b _k ) _p0 with the beginning 13, the end 14. The third phase (W1W2) from the coil groups 3 - (C _to z _к ) _p0 with the beginning 15, end 16 and 6 - (Z _to c _k ) _p0 with the beginning 17, end 18. Coil groups (half phases) 1 and 4, 2 and 5, 3 and 6 in the phase are turned on counter sequentially (Fig. 7).

The phases (Fig. 7) are connected in a star pattern with an inner triangle (Y-Δ) with an on-switching of half-phases: end 8 of coil group 1 - (A _to x _k ) _p0 with end 10 of coil group 4 (X _to a _k ) _p0 , forming the average conclusion of phase 19; the end 12 of the coil group 2 - (B _to y _to ) _p0 with the end of the 14 coil group 5 - (Y _to b _to ) _p0 , forming the average conclusion of phase 20; the end 16 of the coil group 3 - (C _to z _to ) _p0 with the end 18 of the coil group (Z _to c _to ) _p0 , forming the average conclusion of phase 21.

The end of phase U2 - 9 is connected to the middle terminal of phase V1V2 - 20, the end of phase V1 - 13 is connected to the middle terminal of phase W1W2 - 21, the end of phase W2 - 17 is connected to the middle terminal of phase U1U2 - 19.

The beginning of phases U1 - 7, V1 - 11, W1 - 15 form the first input of the winding with the number of poles 2p ₀ . The middle terminals form the second input of the winding with terminals L1 - 19, L2 - 20, L3 - 21 with the number of poles 4p _0.

In the matrix description of the two-layer three-phase winding of electrical machines (Fig. 7) with the number of grooves Z ₀ = 24 and the number of poles of the winding 2p ₀ = 2, the sum of the number of elements of the row of the winding matrix modulo | a _mi | = 12, since relative to the line voltage of the network Three reel groups are included. The angle of the shift of the grooves α ₀ = 15 e. degrees. For the working harmonic of the field V = 1, we obtain the winding coefficient K _ob1 = 0.669.

With the serial connection of the half phases (Fig. 7) 1 and 4, 2 and 5, 3 and 6 in phases, the second winding input is formed by the terminals L1 - 19, L2 - 20, L3 - 21 from the connection points of the half phases 8 and 10, 12 and 14, 16 and 18 with the number of poles 4p ₀ . The beginning and end of each phase 7 and 9, 11 and 13, 15 and 17 are connected to the contacts of the switch 22, which are closed, providing a connection of the half phases 1 and 4, 2 and 5, 3 and 6 in phases according to the star scheme with two parallel branches in each phase (Y with a = 2).

With a matrix description (Fig. 12) of a two-layer three-phase winding of electric machines with the number of poles of the winding 2p ₀ = 4 and the number of grooves Z ₀ = 24, the sum of the number of elements of the row (phase) of the winding matrix modulo | a _mi | = 12 and the angle of the shift of the grooves α ₀ = 30 email degrees. For the working harmonic of the field ν = 1, the winding coefficient K _ob1 = 0.966.

The phases of the three-phase (m = 3) four-zone two-layer winding (Fig. 10) are made of half-phases. The first phase (L1M1) from the coil groups 1 - (A _to x _k ) _p0 with beginning 7, end 8 and 4 - (X _to a _k ) _p0 with beginning 9, end 10 (Fig. 11). The second phase (L2M2) from the coil groups 2 - (B _to y _k ) _p0 with the beginning 11, the end 12 and 5 - (Y _to b _k ) _p0 with the beginning 13, the end 14. The third phase (L3M3) from the coil groups 3 - (C _to z _to ) _p0 with the beginning of 15, the end of 16 and 6 - (Z _to c _to ) _p0 with the beginning of 17, the end of 18. Coil groups (half phases) 1 and 4, 2 and 5, 3 and 6 in the phase are included according to sequentially (Fig. 10).

The phases (Fig. 10) are connected according to the star pattern with the inner triangle (Y-Δ) with the consonant inclusion of half-phases: end 8 of coil group 1 - (A _to x _k ) _p0 with beginning 9 of coil group 4 - (X _to a _k ) _p0 forming the average conclusion of phase 19; the end of 12 coil group 2 - (B _to y _to ) _p0 with the beginning of 13 coil group 5 - (Y _to b _to ) _p0 , forming the average conclusion of phase 20; the end of the 16 coil group 3 - (C _to z _to ) _p0 with the beginning of the 17 coil group (Z _to c _to ) _p0 , forming the average conclusion of phase 21.

The end of phase M1 - 10 is connected to the middle terminal of phase L2M2 - 20, the end of phase M2 - 14 is connected to the middle terminal of phase L3M3 - 21, the end of phase M3 - 18 is connected to the middle terminal of phase L1M1 - 19.

The beginning of phases L - 7 L2 - 11, L3 - 15 form the first input of the winding with the number of poles 4p ₀ . The middle terminals form the second input of the winding with terminals U1 - 19, V1 - 20, W1 - 21 with the number of poles 2p ₀ .

In the matrix description of the two-layer three-phase winding of electric machines (Fig. 10) with the number of slots Z ₀ = 24 and the number of poles of the winding 2p ₀ = 2, the sum of the number of elements of the row of the winding matrix modulo | a _mi | = 12, since relative to the line voltage of the network Three reel groups are included. The angle of the shift of the grooves α ₀ = 30 e. degrees. For the working harmonic of the field ν = 1, we obtain the winding coefficient K _ob1 = 0.823.

With the serial connection of the half phases (Fig. 10) 1 and 4, 2 and 5, 3 and 6 in phases, the second input of the winding is formed by terminals U1 - 19, V1 - 20, W1 - 21 from the connection points of the half phases 8 and 9, 12 and 13, 16 and 17 with the number of poles 2p ₀ . The beginning and end of each phase 7 and 10, 11 and 14, 15 and 18 are connected to the contacts of the switch 22, which are closed, providing a connection of the half phases 1 and 4, 2 and 5, 3 and 6 in phases according to the star scheme with two parallel branches in each phase (Y with a = 2).

In the matrix description of a single-layer three-phase winding of electric machines (Fig. 4) with the number of poles of the winding 2p ₀ = 2 and the number of grooves Z ₀ = 24, the sum of the number of elements of the row (phase) of the winding matrix modulo | a _mi | = 8 and the angle of the shift of the grooves α ₀ = 15 email degrees. For the working harmonic of the field ν = 1, the winding coefficient K _ob1 = 0.701.

When analyzing three-phase windings, the method of connecting the winding to the network should be considered. The calculations (per phase) are fully valid for the case of connecting the windings according to the triangle and star scheme. With the scheme for including windings in a star with an inner triangle, it is necessary to construct a winding matrix with respect to linear voltages.

The results of the analysis of the proposed schemes of four-zone windings show their operability: working magnetic fields with a given number of poles are created and the windings have a high winding coefficient for the working harmonics of the field.

A solution to the problem of a utility model is also achieved - reducing copper consumption by reducing the average length of a turn and the outflow of the frontal parts of the winding of an electric AC machine by shortening the pitch of the winding in grooves.

The four-zone winding, as compared with the two-zone, has a frontal turn coil length of 1.846 times and a frontal extension that is 1.3 times less at p ₀ = 1 than the dual-zone winding. At the same time, the volume of copper decreases by an average of 1.38 times.

A smaller pitch of the four-zone winding along the grooves reduces the active and inductive phase resistance due to the frontal parts of the windings.

In addition, the technology of laying the winding with a smaller pitch in the grooves of the magnetic circuit of the electric machine is simplified.

Claims (16)

1. The winding of an AC electric machine, made m-phase with the number of pairs of poles p ₀ in Ζ grooves of the magnetic circuit and contains phase zones in each phase, while q series-connected coils are made in increments y _cp = ∑y _i / q, where i = l, .. q, characterized in that the winding is made of four-zone and the number of sequentially connected coils q are stacked in the grooves of the magnetic circuit with a step y _cp = Z / (np ₀ ) within each pair of phase zones, where n is the number of phase zones, while the number of phases m, the number of phase zones n, the number of coils q and the number Ζ of grooves of the magnetic circuit are related by Ζ = nmp ₀ q. 2. The winding of an electric AC machine according to claim 1, characterized in that the four-zone winding is made of three-phase m = 3, single-layer with the same number of grooves q per pole, phase and phase zone, with the distribution of the sides of the coils in the grooves according to the law (A _q b _q Z _{q q q q} B _q c _q X _q y _q C _q a _q Y _q z _q ) _p0 , where "A, a and X, x" are the phase zones of the first phase of the four-zone winding, "B, b and Y, y" are the phase zones of the second phase of the four-zone winding, and "C, c and Ζ, z" are the phase zones of the third phase four-zone winding, where (A _q x _q ) _p0 (X _q a _q ) _p0 are the coil groups forming the half-phases of the first phase of the four-zone winding, (B _q y _q ) _p0 (Y _q b _q ) _p0 are the coil groups forming the half-phases of the second chetyrohzonnoy phase _{winding, a (C q z q)} p0 (z q c q) p0 - coil groups forming chetyrohzonnoy semi-phase windings of the third phase, the index "q" - the number of coil sides placed in the respective next phase zones and having the same direction of current in the phase areas "A, and, B, b and C, c "in one direction (for example, up), and in the phase zones" X, x, Y, y and Ζ, z "in the other direction (for example, down), with q coils connected in series within each phase zone, performed in increments of y _av equal to y _cp = τ = Z / (np ₀ ). 3. The winding of an AC electric machine according to claim 1, characterized in that the four-zone winding is made of a three-phase m = 3, two-layer, concentric, with the number of coils K in the coil group connected in series, the sides K of the coils are laid in the grooves of the magnetic circuit within each pair phase zones in adjacent K grooves, where K is equal to K = q + t, and the pitch of concentric coils along the grooves is determined by the relations y _Wed + 2t, ..., usr, ..., usr - 2t, where y _cp = τ = Ζ / (np ₀ ) and t is the shortening step selected from 1 to q, with alternating phase zones in the sequence (A _to b _to Z _to x _to B _to c _to X _to y _to C _to a _to Υ _κ z _κ ) _p0 , where "A, a and X, x" are the phase zones of the first phase of the four-zone winding, "B, b and Y, y" are the phase zones of the second phase of the four-zone winding, and "C, c and Ζ, z" are the phase zones of the third phase a four-zone winding, where (A _k x _k ) _p0 and (X _k a _k ) _p0 are the coil groups forming the half-phases of the first phase of the four-zone winding, (V _k y _k ) _p0 and (Y _k b _k ) _p0 are the coil groups forming chetyrohzonnoy semi-phase of the second phase winding, a (C _{a to} z) _p0 and (Z _{a to} c) _p0 - coil groups forming chetyrohzonnoy semi-phase windings of the third phase, the subscript "R" - is the number of coil sides placed next to the corresponding phase zone and having the same current direction in the phase zones "A, a, B, b and C, c" in one direction (for example, up), and in the phase zones "Χ, x, Y, y and и, z" to the other side (for example, down), while the number of turns in the coils is determined by the fact that the number of conductors of the two-layer winding in the grooves of the magnetic circuit is the same. 4. The winding of an AC electric machine according to claim 2, characterized in that the phases of a single-layer four-zone winding made of half-phases (A _q x _q ) _p0 and (X _q a _q ) _p0 are the first phase, (V _q y _q ) _p0 and (Y _q b _q ) _p0 - of the second phase, (C _q z _{q q} ) _p0 and (Z _q with _q ) _p0 - of the third phase are turned on, the phases are connected into a star and the beginning of the phases form the first input of the winding with the number of poles 2p ₀ when successively turned on in the semi-phase winding phase second input pin is formed from a compound semi-phase points with the number of poles 4p _0, the beginning and end of each phase is connected to the contact switch. 5. The winding of an AC electric machine according to claim 2, characterized in that the phases of a single-layer four-zone winding made of half-phases (A _q x _q ) _p0 and (X _q a _q ) _p0 - the first phase, (B _q y _q ) _p0 and (Y _q b _q ) _p0 - of the second phase, (C _q z _{q q} ) _p0 and (Z _q with _q ) _p0 - of the third phase are connected according to the phases connected to the star and the beginning of the phases form the first input of the winding with the number of poles 4p ₀ , sequentially turned on when a semi-phase winding phase second input pin is formed from a compound semi-phase points with the number of poles 2p _0, the beginning and end of each phase is connected to the contacts ommutatora. 6. The winding of an electric AC machine according to claim 2, characterized in that the phases of a single-layer four-zone winding made of half-phases (A _q x _q ) _p0 and (X _q a _q ) _p0 are the first phase, (V _q y _q ) _p0 and (Y _q b _q ) _p0 - of the second phase, (C _q z _{q q} ) _p0 and (Z _q C _q ) _p0 - of the third phase are turned on, and the phases are connected in a triangle and the beginning of the phases form the first input of the winding with the number of poles 2p ₀ , sequentially turned on when a semi-phase winding phase second input pin is formed from a compound semi-phase points with the number of poles 4p _0, the beginning and end of each phase is connected to the contacts ommutatora. 7. The winding of an electric AC machine according to claim 2, characterized in that the phases of a single-layer four-zone winding made of half-phases (A _q x _q ) _p0 and (X _q a _q ) _p0 - the first phase, (B _q y _q ) _p0 and (Y _q b _q ) _p0 is the second phase, (C _q z _{q q} ) _p0 and (Z _q C _{q q} ) _p0 are the third phase are switched on according to this, the phases are connected in a triangle and the beginning of the phases form the first input of the winding with the number of poles 4p ₀ , when the semi-phases are sequentially switched on in phases, the second winding input formed by the conclusions from the connection points of the half phases with the number of poles 2p ₀ , while the beginning and end of each phase is connected to the contacts of the switch. 8. The winding of an AC electric machine according to claim 2, characterized in that the phases of a single-layer four-zone winding made of half-phases (A _q x _q ) _p0 and (X _q a _q ) _p0 are the first phase, (V _q y _q ) _p0 and (Y _q b _q ) _p0 - the second phase, (C _q z _{q q} ) _p0 and (Z _q C _q ) _p0 - the third phase are turned on, and the end of the first phase is connected to the connection point of the half-phases of the second phase, the end of the second phase is connected to the point connection of the half-phases of the third phase, the end of the third phase is connected to the connection point of the half-phases of the first phase, forming a connection diagram of the star windings with the inner triangle Υ-Δ, and the beginning of form of the first input winding with pole number 2p _0, for successively turned on in semi-phase winding phase second input pin is formed from a compound semi-phase points with the number of poles 4p _0. 9. The winding of an AC electric machine according to claim 2, characterized in that the phases of a single-layer four-zone winding made of half-phases (A _q x _q ) _p0 and (X _q a _q ) _p0 are the first phase, (V _q y _q ) _p0 and (Y _q b _q ) _p0 - the second phase, (C _q z _{q q} ) _p0 and (Z _q c _q ) _p0 - the third phase are connected according to, and the end of the first phase is connected to the connection point of the half-phases of the second phase, the end of the second phase is connected to the point connection of the half-phases of the third phase, the end of the third phase is connected to the connection point of the half-phases of the first phase, forming a connection diagram of the star windings with the inner triangle Υ-Δ, and the beginning of form of the first input winding with pole number 4p ₀ for sequentially turned on in the semi-phase winding phase second input terminals formed dots semi-phase compound. 10. The winding of an electric AC machine according to claim 3, characterized in that the phases of the two-layer four-zone winding made of half phases (A _k x _k ) _p0 and (X _k a _k ) _p0 are the first phase, (V _k y _k ) _p0 and (Y _to b _to ) _p0 - of the second phase, (C _to z _to ) _p0 and (Z _to c _to ) _p0 - of the third phase are turned on, and the phases are connected into a star and the beginning of the phases form the first input of the winding with the number of poles 2p ₀ , when the semi-phases are sequentially switched on in phases, the second winding input is formed conclusions from the connection points of the half-phases with the number of poles 4p ₀ , while the beginning and end of each phase is connected to the contacts of the switch. 11. The winding of an electric AC machine according to claim 3, characterized in that the phases of the two-layer four-zone winding made of half-phases (A _k x _k ) _p0 and (X _k a _k ) _p0 - the first phase, (V _k y _k ) _p0 , and (Y _to b _to ) _p0 - of the second phase (C _to z _to ) _p0 and (Z _to c _to ) _p0 - of the third phase are connected according to, while the phases are connected into a star and the beginning of the phases form the first input of the winding with the number of poles 4p ₀ when successively turned on in the semi-phase winding phase second input pin is formed from a compound semi-phase points with the number of poles 2p _0, the beginning and end of each phase is connected to ontact switch. 12. The winding of an electric AC machine according to claim 3, characterized in that the phases of the two-layer four-zone winding made of half phases (A _k x _k ) _p0 and (X _k a _k ) _p0 are the first phase, (V _k y _k ) _p0 and (Y _to b _to ) _p0 is the second phase, (C _to z _to ) _p0 and (Z _to c _to ) _p0 is the third phase are turned on, and the phases are connected in a triangle and the beginning of the phases form the first input of the winding with the number of poles 2p ₀ , sequentially turned on when a semi-phase winding phase second input pin is formed from a compound semi-phase points with the number of poles 4p _0, the beginning and end of each phase is connected to the con Switch acts. 13. The winding of an electric AC machine, but p. 3, characterized in that the phases of the two-layer four-zone winding made of half-phases (A _k x _k ) _p0 and (X _k a _k ) _p0 , - the first phase, (V _k y _k ) _p0 , and (Y _to b _to ) _p0 - the second phase (C _to z _to ) _p0 and (Z _to c _to ) _p0 - the third phase are switched on according to this, while the phases are connected in a triangle and the beginning of the phases form the first input of the winding with the number of poles 4p _0, for successively turned on in semi-phase winding phase second input pin is formed from a compound semi-phase points with the number of poles 2p _0, the beginning and end of each phase of connecting Nen to the contacts of the switch. 13. The winding of an electric AC machine according to claim 2, characterized in that the phases of a single-layer four-zone winding made of half-phases (A _q x _q ) _p0 and (X _q a _q ) _p0 are the first phase, (V _q y _q ) _p0 and (Y _q b _q ) _p0 - of the second phase, (C _q z _{q q} ) _p0 and (Z _q with _q ) _p0 - of the third phase are included according to, and the end of the first phase is connected with the connection point of the half-phases of the second phase, the end of the second phase is connected to the connection point of the half-phases of the third phase, the end of the third phase is connected to the connection point of the half-phases of the first phase, forming a connection diagram of the star windings with the inner triangle Υ-Δ, and the beginning of the phases form the first input of the winding with the number poles 4p ₀ , when the half-phases are switched on in phases in phases, the second input of the winding is formed by the terminals from the connection points of the half-phases. 14. The winding of an electric AC machine according to claim 3, characterized in that the phases of the two-layer four-zone winding made of half-phases (A _k x _k ) _p0 and (X _k a _k ) _p0 - the first phase, (V _k y _k ) _p0 , and (Y _to b _to ) _p0 - of the second phase, (C _to z _to ) _p0 and (Z _to c _to ) _p0 - of the third phase are turned on, and the end of the first phase is connected to the connection point of the half-phases of the second phase, the end of the second phase is connected to the connection point of the half-phases of the third phase, the end of the third phase is connected to the connection point of the half-phases of the first phase, forming a connection diagram of the star windings with the inner triangle Υ-Δ, phase starts to form a first input winding to the number of poles 2p _0, when successively turned on in semi-phase winding phase second input pin is formed from a compound semi-phase points with the number of poles 4p _0, 15. The winding of an electric AC machine according to claim 3, characterized in that the phases of the two-layer four-zone winding made of half phases (A _k x _k ) _p0 and (X _k a _k ) _p0 are the first phase, (V _k y _k ) _p0 and (Y _to b _to ) _p0 - of the second phase, (C _to z _to ) _p0 and (Z _to c _to ) _p0 - of the third phase are included and according to, and the end of the first phase is connected to the connection point of the half-phases of the second phase, the end of the second phase is connected to the connection point of the half-phases of the third phase, the end of the third phase is connected to the connection point of the half-phases of the first phase, forming a connection diagram of the star windings with the inner triangle Υ-Δ, and the beginning of the phases form the first input of the winding with the number of poles 4p ₀ , when the semi-phases are switched on in phases in phases, the second input of the winding is formed by the conclusions from the connection points of the half phases with the number of poles 2p ₀ .

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