SU875536A1

SU875536A1 - Three-phase pole-switchable winding

Info

Publication number: SU875536A1
Application number: SU802869509A
Authority: SU
Inventors: Анатолий Иванович Антоненко; Игорь Иванович Краштан
Original assignee: Институт Электродинамики Ан Усср
Priority date: 1980-01-14
Filing date: 1980-01-14
Publication date: 1981-10-23

Description

Изобретение относится к полюсопереключаемым обмоткам электрических машин переменного тока и может найти применение в двухскоростных двигателях.The invention relates to pole-switchable windings of electrical machines of alternating current and may find application in two-speed motors.

Известна обмотка, которая выполняется только при числе катушек, кратном 54 [1].Known winding, which is performed only when the number of coils is a multiple of 54 [1].

Известна обмотка, которая обеспечивает переключение полюсов в отношении 3/2 [2].Known winding, which provides switching poles in the ratio 3/2 [2].

Известна также обмотка, которая выполняется только при числе катушек, кратном 48 £з].A winding is also known, which is performed only when the number of coils is a multiple of 48 £ s].

Наиболее близкой к предлагаемой является трехфазная двухслойная полюсопереключаемая обмотка двухскоростного двигателя с отношением чисел пар полюсов /Ρ_χ = 4/3 содержит Р_о одинаковых частей с числом катушек Ζ/Ρ_σ в каждой. Катушки объединены в катушечные группы,образующие фазы, разделенные на две полуфазы. Обмотка снабжена выводами из начала фаз и точек соединения полуфаз [4].Closest to the proposed is a three-phase two-layer pole switchable winding of a two-speed motor with the ratio of the number of pole pairs / Ρ _χ = 4/3 contains P _about identical parts with the number of coils Ζ / Ρ _σ in each. The coils are combined into coil groups forming phases, divided into two half phases. The winding is equipped with leads from the beginning of the phases and the connection points of the half-phases [4].

Недостатком известной полюсопереключаемой обмотки является большая трудоемкость выполнения из-за наличия большого числа катушечных групп.A disadvantage of the known pole-switchable winding is the high complexity of execution due to the presence of a large number of coil groups.

Цель изобретения - упрощение конструкции обмотки за счет уменьшения числа катушечных групп.The purpose of the invention is to simplify the design of the winding by reducing the number of coil groups.

Поставленная цель достигается тем, что обмотка выполнена однослойной с числом катушек, кратный 18, в пределах одной части которой расположено десять катушечных групп, числа катушек в'каждой из которых, например, начиная с первой,соответствуют ряду - ЗК,К,2К,К,ЗК,К,2К,2К,К, при этом в каждую полуфазу включены катушечные группы, имеющие следующие порядковые номера в приведенном выше ряде: первая полуфаза первой фазы 1; вторая полуфаза первой фазы 6;This goal is achieved in that the winding is made single-layer with a number of coils, a multiple of 18, within one part of which there are ten coil groups, the number of coils in each of which, for example, starting from the first, correspond to a series - ЗК, К, 2К, К , ZK, K, 2K, 2K, K, while in each half-phase are included coil groups having the following serial numbers in the above series: the first half-phase of the first phase 1; the second half phase of the first phase 6;

первая полуфаза вторая полуфаза первая полуфаза вторая полуфаза второй фазы - 4,5; второй фазы - 9,10; третьей фазы - 7,8; третьей фазы - 2,3.the first half phase the second half phase the first half phase the second half phase of the second phase - 4.5; the second phase is 9.10; the third phase - 7.8; the third phase - 2.3.

В каждой из полуфаз второй и третьей фазы катушечные группы включены после довательно-встречно, где Я , Р- - числа пар полюсов обмотки; *In each of the half-phases of the second and third phases, the coil groups are connected sequentially in the opposite direction, where I, P- are the number of pairs of winding poles; *

- число одинаковых частей обмотки;- the number of identical parts of the winding;

Кроме того,Moreover,

- число катушек обмотки ;- the number of winding coils;

- целое положитель-- the whole positive

- ное число,К»' катушки в катушечных группах, расположены концентрически.is the numerical number, K '' coils in the coil groups, are arranged concentrically.

На чертеже изображена схема обмОтки на 8 и 6 полюсов при 36 пазах статора.The drawing shows a winding circuit for 8 and 6 poles with 36 stator slots.

В. данном случае Р_о · 1, 2 ^и 18,C. In this case, R _o · 1, 2 ^and 18,

К 1. При этом чередование чисел катушек в катушечных группах соответствует ряду - 3,1,2,2,1,3,1,2,2,1.K 1. In this case, the alternation of the numbers of coils in the coil groups corresponds to the series - 3,1,2,2,1,3,1,2,2,1.

В первую полуфазу первой фазы, присоединенной к зажимам 8С* - 6Су, включена катушечная группа с номере»!In the first half-phase of the first phase, connected to the terminals 8C * - 6Cu, the coil group with the number is included! ”

1. Во вторую полуфазу первой фазы, присоединенной к зажимам 6Су - 8С_г, включена катушечная группа с номером1. In the second half-phase of the first phase connected to the terminals 6Су - 8С _g , the coil group with the number

6. В первую полуфазу второй фазы, присоединенной к зажимам 8С^ - 6C_irвключена катушечная группа с номером 5 и встречно с ней - 4. Во вторую полуфазу второй фазы присоединенной к зажимам 6С_а - 8С₃, включена катушечная группа с номером 10 и встречно с ней 9. В первую полуфаэу третьей фазы, присоединенной к зажимам 8Сд - бС_а, включена катушечная группа с номером 7 и встречно с ней - 8. Во вторую полуфазу третьей фазы,присоединенной к зажимам 6С^ - 8Су, включена катушечная группа с номере»» 2 и встречно с ней - 3.6. In the first half-phase of the second phase connected to the terminals 8C ^ - 6C _{ir, the} coil group with number 5 and counter to it is included 4. In the second half-phase of the second phase connected to the terminals 6C _a - 8C ₃ , the coil group with number 10 and counter to her 9. In the first half-phase of the third phase connected to the terminals 8Сд - бС _а , the coil group with number 7 is turned on and counter to her - 8. In the second half-phase of the third phase connected to the terminals 6С ^ - 8Су, the coil group with number »» 2 and counter to her - 3.

При подсоединенных зажимах 8Су, 8С-,8С_Э к питающей сети и свободных зажимах 6С₄ , бс₂,6С^ возникает вра^· щающееся магнитное поле с числе»» полюсов, равным восьми, При подсоединенных зажимах 6С^ , 6С^, бе^ к питающей сети и замкнутых зажимах 80у, 8С^, 8С3 возникает магнитное поле с числом полюсов, равным шести.When the terminals 8Су, 8С-, 8С _{Э are} connected to the mains and the free terminals 6С ₄ , бс ₂ , 6С ^, a rotating magnetic field appears with the number of poles equal to eight, When the terminals 6С ^, 6С ^, бе are connected ^ to the mains and closed terminals 80u, 8C ^, 8C3, a magnetic field appears with the number of poles equal to six.

Обмотка более проста в практическом выполнении, так как содержит меньшее число катушечных групп и меньше межкатушечных соединений·Кроме того, выполнение обмотки однослойной с концентрически расположенными катушками в катушечных группах позволяет механизировать процесс ее изготовления.The winding is simpler in practical implementation, since it contains fewer coil groups and fewer intercoil connections. In addition, the execution of a single-layer winding with concentrically arranged coils in coil groups allows us to mechanize the process of its manufacture.

Claims

one

The invention relates to pole-switched windings of electrical AC machines and can be used in two-speed motors.

The winding is known, which is performed only when the number of coils is a multiple of 54 1 ,.

The winding is known, which provides pole switching in the ratio of 3/2 Cr1. A winding is also known, which is performed only when the number of coils is a multiple of 48 H.

Closest to the proposed is a three-phase two-layer: the pole-switchable winding of a two-speed motor with the ratio of the numbers of pairs of poles P. 4/3 contains the PO of equal parts with the number of Z / Pg coils in the box. The coils are combined into coil groups forming phases divided into two semi-phases. The winding is equipped with leads from the beginning of the phases and points of connection of the semi-phases 4 3.

A disadvantage of the known pole-switching winding is the greater complexity of execution due to

the presence of a large number of coil groups.

The purpose of the invention is to simplify the construction of the winding by reducing the number of coil groups.

The goal is achieved by the fact that the winding is made single-layer with the number of coils, a multiple of 18, within one part of which

10 there are ten coil groups, the numbers of coils in each of which, for example, starting with the first one correspond to the row - LC, K, 2K, K, LC, K, 2K, 2K, k; at the same time in each semi-phase included

15 coil groups having the following sequence numbers in the above range: first half-phase of the first phase 1; second half-phase of the first phase 6; the first half-phase of the second phase is 4.5; 20 second half-phase of the second phase - 9,10; the first half-phase of the third phase is 7.8; the second half-phase of the third phase is 2.3. In each of the second and third phase semi-phases, the coil groups are turned on after 25, where R, Рj are the numbers of winding pole pairs;

. - NUMBERS of the same

36 pieces of winding;

Z is the number of winding coils; K is a positive integer, K- In addition, the coils in the coil groups are arranged concentrically.

The drawing shows a diagram of the winding 8 and 6 poles with 36 slots of the stator.

V. yes: ns 1 case of PO 1 g 18, K - 1. At the same time, the alternation of the numbers of coils in the coil groups corresponds to the row - 3,1,2,2,1,3,1,2,2,2.

In the first half-phase of the first phase, connected to the ignitors VS-6Q /, a coil group number 1 is included. The second half-phase of the first phase, connected to clamps 6C - 8C, includes a coil group number 6. In the first half-phase of the second phase, connected to terminals VS . BS, the coil group with number 5 is turned on and opposite to it - 4. The second half of the second phase of the second phase connected to the terminals BS.D - BS is turned on and the coil group with the meter is U and opposite it 9. In the first half of the third phase connected to the terminals of SC - BSA includes a coil group with number 7 and 8 opposite to it. At the second semi-phase of the third phase, connected to terminals BS - 8G, a coil group is switched on with a connector L 2 counter with it - 3.

When the 8C, 8Cd, and 8c connectors are connected to the mains supply and the free terminals 6C bc, bc arises, and a sparse magnetic field with the number of poles equal to eight. When the BS, BS, BS terminals are connected to the mains supply and the 9Qf BCjj, 80 terminals are closed, a magnetic field arises with the number of poles equal to six.

The winding is simpler in practical implementation, since it contains a smaller number of coil groups and fewer coil-type connections. Moreover, performing a single-layer winding with concentrically arranged coils in the coil groups allows mechanizing the process of its manufacture.

claims 1. three-phase pole-switching

winding with the ratio of the numbers of pairs of poles. 4/3, containing P, of equal parts with the number of Z / P coils in each, combined into coil groups, forming phases, divided into two half-phases, provided with leads from the beginning of the phases and points of connection of the half-phases, in order to simplify construction, the winding is made single-layer with the number of coils, a multiple of 18, within one part of which there are ten coil groups, the numbers of coils in each of which, for example, starting from the first, correspond to the row - KK, K, 2K, 2K, K, ZK , K, 2K, 2K, K, with coil groups included in each semi-phase, having the following order numbers in the figures ({above the row: first half-phase of the first phase - 1; second half-phase of the first phase - 6; first half-phase of the second phase - 4.5; second half-phase of the second phase - 9.10 first, half-phase of the third phase - 7.8; the second half phase of the third phase - 2; In each of the second and third phase half phases, the coil groups are included opposite, where PV.PRL is the number of equal parts of the windings;

2 - the number of winding coils; K - positive whole

number, K p

2. Winding according to claim 1, characterized in that the coils in the coil groups are arranged concentrically.

Sources of information taken into account in the examination

1. USSR author's certificate 399969, cl. H 02 K 3/28, 1973.

2. USSR author's certificate 399971, cl. H 02 K 3/28, 1973.

3. Authors certificate of the USSR W 399972, cl. H 02 K 3/28, 1973.

4. USSR author's certificate 399967, cl. H 02 K 3/28, 1973.