SU1003258A1

SU1003258A1 - Three-phase pole-switchable winding

Info

Publication number: SU1003258A1
Application number: SU813368673A
Authority: SU
Inventors: Анатолий Иванович Антоненко; Игорь Иванович Краштан; Валентин Иванович Кисленко; Дмитрий Андреевич Строгин; Пятрас Ионович Катилюс
Original assignee: Институт Электродинамики Ан Усср; Специальное конструкторско-технологическое бюро Института электродинамики АН УССР
Priority date: 1981-12-23
Filing date: 1981-12-23
Publication date: 1983-03-07

Description

Изобретение относитс к полюсопереключаемым обмоткам электрических, машин переменного тока и может найти применение в двухскоростных двигател х .The invention relates to pole-switched windings of electrical, AC machines and may find application in two-speed motors.

Известны трехфазные полюсопереключаемые обмотки с реверсированием тока в половине катушек фаз при переключении полюсов С1 - t i 3.Three-phase pole-switching windings are known with reversing the current in half of the phase coils when switching poles C1 - t i 3.

Эти обмотки обеспечивают переключение полюсов в отношении 4/3 и 3/2 и не могут быть применены в электроприводах, требующих более широкого диапазона изменени частот вращени .These windings provide pole switching in the ratio of 4/3 and 3/2 and cannot be applied in electric drives that require a wider range of rotation frequency variations.

Наиболее близким техническим решением к предлагаемому изобретению вл етс трехфазна по.гаосопереключаема обмотка на два числа пар полюсов , кратные Р и P..j, содержат одинаковых частей с числом катушек Z/Pg в каждой. Катушки объединены в катушечные группы, образукхцие фазы, разделенные на две полуфазы. Обмотка снабжена выводами из начгш фаз и точек соединени полуфаз С 1The closest technical solution to the present invention is a three-phase winding switch winding into two numbers of pairs of poles, multiples of P and P ... j, contain equal parts with the number of Z / Pg coils in each. Coils are combined into coil groups, forming phases, divided into two semi-phases. The winding is equipped with leads from the initial phases and junctions of the semi-phases C 1.

Недостатком известной полюсопереключаемой обмотки вл етс недоис Е. пользование активных материалов изза относительно низкого -значени об;моточного коэффициента при большем числе полюсов.A disadvantage of the known pole-switching winding is the lack of E. utilization of active materials due to the relatively low value of the winding factor with a larger number of poles.

I Цель изобретени - улучшение использовани активных материалов за счет повьааени обмоточного коэффициента .I The purpose of the invention is to improve the use of active materials by increasing the winding ratio.

Поставленна цель достигаетс тем, что в пределах одной обмот10 ки расположено 26 катушечных групп, числа катушек в каждой из которых, например начина с первой, соответствуют р ду 2К, 1К, 2К, 2К, 2К, 1К, 2К, 1К, 1К, 1К, 1К, 1К, 1К, 2К, 1К, This goal is achieved by the fact that within one winding there are 26 coil groups, the numbers of coils in each of which, for example, starting from the first, correspond to a row of 2K, 1K, 2K, 2K, 2K, 1K, 2K, 1K, 1K, 1K , 1К, 1К, 1К, 2К, 1К,

15 2К, 1К, 2К, 1К, 2К, 1К, 1К, 1К, 1К, 1К, 1К, при этом в каждую полуфазу включены катушечные группы, имеющие следующие пор дковые номера в приведённом вьаое р де: перва полуфаза 15 2К, 1К, 2К, 1К, 2К, 1К, 1К, 1К, 1К, 1К, 1К, with each coil group having the following sequence numbers in the above row included in each semi-phase:

Claims

20 of the first phase - 19, 26, 4, 8, 15; the second half-phase of the first phase is 6, 13, 17, 21.2; first half-phase of the second phase 11, 16, 22, 1; the second half-phase of the second phase - 24, 3, 9, 14; the first half of the 25 phase of the third phase - 7, 12, 18, 23; the second half-phase of the third phase is 20, 25, 5, 10, and the coil groups with numbers-19, 15, 6, 2, 22, 1, 9, 14, 7, 12, 20, 25 are included sequentially and counter to other coil groups corresponding semi-phases, where R., R 1 - the number of pairs of winding poles; - R 6 2 - the number of the same x parts of the winding; Z is the number of winding coils; K is a positive integer; The drawing shows a winding scheme for 2 and 12 POLES, laid in 36 slots. In this case , , . In this case, the alternation of the numbers of coils in the coil groups corresponds to the row - 2,1,2,2,2,1,2 1,1,1,1,1,1,2,1,2,2,2,2,2,2 1,1,1, 1, The first half-phase of the first phase connected to the terminals includes coil groups with numbers 19, 26, 4, 8, 15. The second half of the phase of the first phase connected to the terminal 2C and the zero point FO, includes coil groups with numbers 6, 13, 17 ,. 21, 2. The first half-phase of the second phase, connected to the terminals, includes coil groups with numbers 11, 16, 22, 1. The second half-phase of the second phase, connected to terminal 20 and the zero point O, includes the coil groups with numbers. 24, 3, 9, 14. The first half-phase of the third phase, attached to the clamps, includes core groups numbered 7, 12 ,. 18, 23, The second half-phase of the third phase, connected to the terminal 2C and the zero point O, includes coil groups with numbers 20, 25, 5, 10. In each of the semi-phases there are coil groups with numbers 19, 15, 6, 2, 22, 1, P, 14, 7, 12, 20, 25 are included in series with other cathechny groups of the corresponding semi phases. Pole switching is performed according to the star-double star scheme. When the 12C, 12C2, 12C connectors are connected to the supply network and the free terminals 2C, 20, 2C, the winding creates a rotating magnetic field with the number of poles equal to twelve. When 2Ct, 2C-, 2Cz terminals are connected and 12C ,, 12С ,,, 12С2 closed terminals, a magnetic field arises with the number of poles equal to two. The winding makes it possible to more fully use the active materials of the engine by increasing the winding ratio at (0.866 compared to 0.667 in 5) and, therefore, increasing the power of the engine in a given dimension by about 25% with the same electromagnetic loads. In this way, the engine material consumption per unit of power is reduced. Three-phase pole-switched winding for two numbers of pole pairs, multiples of Р and 2. Containing Р, equal parts with the number of Z / P coils, each of them combined into coil groups, forming phases, divided into two half-phases, equipped with leads from the beginning of the phases and points of connection of semi-phases, characterized in that, in order to improve the use of active materials, 26 coil groups are located within one part of the winding, the number of coils in each of which, for example, starting from the first, corresponds to a number of 2K, 1K, 2K, 2K, 2K, 1K, 2K , 1K, 1K, 1K, 1K, 1K, 1K, 2K, 1K, 2K, 2K, 2K, 1K, 2K, 1K, 1K, 1K, 1K, 1K, 1K, with each coil group having the following serial numbers in the above range: first half-phase of the first phase - 19, 26, 4., 8.15, second half-phase of the first phase - 6, 13, 17,21, 2, first half-phase of the second phase - 11, 16, 22 , 1, the second half-phase of the second phase is 24, 3, 9, 14, the first half-phase of the third phase is 7, 12, 18, 23, the second half-phase of the third phase is 20, 25, 5, 10, with the coil groups with numbers 19, 15, 6, 2, 22, 1, 9, 14, 7, 12, 20, 25 are connected in series to each other coil group of the corresponding semi az where P 6, Z is the number of coils of batching; ,, Z 1 -.-..-.....- Sources of information taken into account during the examination 1. USSR author's certificate No. 399969, cl. H 02 K 3/28, 1970.

2. USSR author's certificate 399971, cl. H 02 K 3/28, 1970.

3. USSR author's certificate No. 399972, cl. H 02 K 3/28, 1970.

4. USSR author's certificate 399967, cl. H 02 K 3/28, 1970.

5. The patent of Great Britain 988726, cl. H 2 A 11 C 1965. f g j 4 j ff 7 in sroff fff / 7ff / ff f f fff fff sztgpsh