SU972631A1

SU972631A1 - Three-phase two-speed pole-switchable winding

Info

Publication number: SU972631A1
Application number: SU813230018A
Authority: SU
Inventors: Анатолий Иванович Антоненко; Игорь Иванович Краштан; Валентин Иванович Кисленко; Дмитрий Владимирович Примаченко; Дмитрий Андреевич Строгин; Ванда Дануте Миколовна Казлаускене
Original assignee: Институт Электродинамики Ан Усср; Специальное Конструкторско-Технологическое Бюро При Институте Электродинамики Ан Усср
Priority date: 1981-01-05
Filing date: 1981-01-05
Publication date: 1982-11-07

Description

Изобретение относится к полюсопереключаемым обмоткам электрических ма шин переменного тока и может найти применение в двухскоростных двигателях.The invention relates to pole-switchable windings of AC electric machines and can find application in two-speed motors.

Известны трехфазные полюсопереключаемые обмотки с реверсированием тока в половине катушек фаз при переключении полюсов [1], [2], UJ и [4].Known three-phase pole-switching windings with current reversal in half of the phase coils when switching the poles [1], [2], UJ and [4].

Эти обмотки обеспечивают переключение полюсов в отношении 4/3 и 3/2 и не могут быть применены в электроприводах, требующих более широкого диапазона изменения частот вращения.These windings provide pole switching with respect to 4/3 and 3/2 and cannot be used in electric drives requiring a wider range of rotation speeds.

Наиболее близким техническим решением к изобретению является трехфазная полюсопереключаемая обмотка на два числа пар полюсов, кратные Р^ и , содержащая Р_о одинаковых частей с числом катушек 2/Р_ов каждой. Катушки объединены в катушечные группы, образующие фазы, раз2 деленные на две полуфазы. Обмотка снабжена выводами из начал фаз и точек соединения полуфаз [5]. Недостатком известной полюсопереключаемой обмотки является недоиспользование активных материалов из-за относительного низкого значения обмоточного коэффициента при большом числе полюсов.The closest technical solution to the invention is a three-phase pole-switchable winding into two numbers of pole pairs, multiples of P ^ and containing P _about identical parts with the number of coils 2 / P _about in each. 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 [5]. A disadvantage of the known pole switchable winding is the underutilization of active materials due to the relatively low value of the winding coefficient with a large number of poles.

^,0 Целью изобретения является улучшение использования активных материалов за счет повышения обмоточного коэффициента. ^{, 0} The aim of the invention is to improve the use of active materials by increasing the winding coefficient.

Поставленная цель достигается ^1S тем, что в пределах одной части обмотки с числом катушек, кратным 48, расположено 34 катушечные группы, числа катушек в каждой из которых, например, начиная с первой, соответствуют ряду: Tk,2K, 1К,2К, 1К.2К, 11(, 1К , 2К, 1К, 2К, 1К, 1К, 2К, 1К, IK, 2К,This goal is achieved by ^1S in that within the same part of the winding with the number of coils multiple of 48, there are 34 coil groups, the number of coils in each of which, for example, starting from the first, corresponds to the series: Tk, 2K, 1K, 2K, 1K. 2K, 11 (, 1K, 2K, 1K, 2K, 1K, 1K, 2K, 1K, IK, 2K,

1К, 2К, 1К, 2К, 1К, IK, 2К, IK, 2К,1K, 2K, 1K, 2K, 1K, IK, 2K, IK, 2K,

1К, 1К, 2К, 1К, 2К, 1К, при этом в каждую полуфазу включены катушечные группы, имеющие следующие порядковые номера в приведенном выше ряде: первая полуфаза первой фазы 34, 4, 8, 19, 23; вторая полуфаза первой фазы - 17, 21, 25, 2, 6; .1K, 1K, 2K, 1K, 2K, 1K, with each half-phase included coil groups having the following serial numbers in the above series: the first half-phase of the first phase 34, 4, 8, 19, 23; the second half-phase of the first phase - 17, 21, 25, 2, 6; .

первая полуфаза второй фазы -29,33, 3,10,14,18; вторая полуфаза второй фазы - 12, 16, 20, 27, 31 , 1 ;,первая полуфаза третьей фазы - 5, 9, 13, 24, 28, 32,. вторая полуфаза третьей фазы - 22, 26, 30, 7, 11, 15, причем катушечные группы с номерами 19, 23, 2, 6, 29, 33, 3, 12., 16, 20, 5, 9, 13, 22, 26, 30, включены последовательно-встречно другим катушечным группам соответствующих полуфаз, где Ex, =8; 1 - числа пар полюсов обмотки; Р_о=-gl- = Р₂ - число одинаковых частей обмотки; 2- число катушек обмотки; К тельное число,¹ К =the first half of the second phase is -29.33, 3,10,14,18; the second half of the second phase - 12, 16, 20, 27, 31, 1;; the first half of the third phase - 5, 9, 13, 24, 28, 32 ,. the second half-phase of the third phase is 22, 26, 30, 7, 11, 15, and the coil groups with numbers 19, 23, 2, 6, 29, 33, 3, 12., 16, 20, 5, 9, 13, 22 , 26, 30, are connected sequentially counter to other coil groups of the corresponding half phases, where Ex, = 8; 1 - the number of pairs of poles of the winding; P _about = -gl- = P ₂ - the number of identical parts of the winding; 2 - the number of winding coils; Body number, ¹ K =

- целое- the whole

48-Р_о положиНа чертеже изображена схема обмотки на 2 и 16 полюсов, уложенная в 48 пазах. В данном случае Р_о=1, Z=48, К=1. При этом чередование чи-48-P _on position The drawing shows a winding diagram for 2 and 16 poles, laid in 48 grooves. In this case, P _o = 1, Z = 48, K = 1. In this case, the alternation of

сел sat down катушек coils в катушечных in reel группах groups co- co- ответствует meets ряду -1, row -1, 2, 1 2, 1 , 2, , 2, 1, 1, г. g. 1, 1 eleven , 2, 1, , 2, 1, 2, 1, 1, 2, 1, 1, 2, 1 2, 1 , 2, , 2, 1, 1, 1, 1, 2, 1 2, 1 ,2, 1, , 2, 1, 2, 1, 1, 2, 1, 1, 2, 1 2, 1 , 2, , 2, 1, 1, 1, 1,

2, 1, 2, 1.2, 1, 2, 1.

В первую полуфазу первой фазы, присоединенной к зажимам 1бС - 2С, включены катушечные группы с номерами 34, 4, 8, 19, 23· Во вторую полуфазу первой фазы, присоединенной к зажиму 2С^ и нулевой точке 0, включены катушечные группы с номерамиCoil groups with numbers 34, 4, 8, 19, 23 are included in the first half phase of the first phase connected to terminals 1bC - 2C. Coil groups with numbers are included in the second half phase of the first phase connected to terminal 2C ^ and zero point 0

17, 21, 25, 2, 6. В первую полуфазу второй фазы, присоединенной к зажимам 16 Cq- 2 , включены катушечные группы с номерами 29, 33, 3, 10, 14,17, 21, 25, 2, 6. The first half-phase of the second phase connected to the terminals 16 Cq-2 includes coil groups with numbers 29, 33, 3, 10, 14,

18. Во вторую полуфазу второй фазы, присоединенной к зажиму 2С^ и нулевой точке 0, включены катушечные группы с номерами 12, 16, 20, 27, 31,1- В первую полуфазу третьей фазы, присоединенной к зажимам 16 С^- 2С^, включены катушечные группы с номерами 5, 9, 13, 24, 28, 32. Во вторую полуфазу третьей фазы, присоединенной к зажиму 2Cj, и нулевой точке 0, включены катушечные группы с номерами 22, 26, 30, 7, 11, 15.18. In the second half-phase of the second phase connected to terminal 2C ^ and zero point 0, coil groups with numbers 12, 16, 20, 27, 31.1 are included. In the first half-phase of the third phase connected to terminals 16 C ^ - 2C ^ , included coil groups with numbers 5, 9, 13, 24, 28, 32. In the second half-phase of the third phase connected to terminal 2Cj, and zero point 0, included coil groups with numbers 22, 26, 30, 7, 11, 15 .

В каждой из полуфаз катушечные группы с номерами 19, 23, 2,. 6, 29, 33, 3, 12, 16, 20, 5, 9, 13, 22, 26, 30 включены последовательно-встречно другим катушечным группам соответствующих полуфаз. Переключение полюсов осуществляется по схеме звезда (двойная звезда. При подсоединенных 5 зажимах 1бС_и, 16С₂, 1бС^ к питающей сети и свободных зажимах 2С^, 2С₂, 2С^ обмотка создает вращающееся магнитное поле с числом полюсов₀ равным шестнадцати. При подсоединенных за10 жимах 2C-J, 2С₂, 2С^ и замкнутых зажима,; 1бС_л ,16 С₂, 16 Cj возникает магнитное поле с числом полюсов, равным двум.In each of the half-phases, coil groups with numbers 19, 23, 2 ,. 6, 29, 33, 3, 12, 16, 20, 5, 9, 13, 22, 26, 30 are connected sequentially counter to other coil groups of the corresponding half phases. The pole switching is carried out according to the star (double star) scheme. When 5 terminals 1bC _and 16C ₂ , 1bC ^ are connected to the mains and free terminals 2C ^, 2C ₂ , 2C ^, the winding creates a rotating magnetic field with the number of poles ₀ equal to sixteen. When connected After 10 presses 2C-J, 2C ₂ , 2C ^ and closed clamps ;; 1bC _l , 16 C ₂ , 16 Cj, a magnetic field appears with the number of poles equal to two.

Обмотка позволяет более полно ис15 пользовать активные материалы двигателя за счет увеличения обмоточного коэффициента при 2р=1б, (0,866 по сравнению с 0,781 в [5])и, следовательно, улучшить его энергети20 ческие показатели.The winding makes it possible to more fully utilize the active materials of the motor due to an increase in the winding coefficient at 2p = 1b (0.866 compared to 0.781 in [5]) and, therefore, to improve its energy performance.

Claims

39 each half-phase includes coil groups having the following sequence numbers in the above series: first half-phase of the first phase 3, 4, 8, 19, 23; the second half-phase of the first phase is 17, 21, 25, 2, 6; . first half-phase of the second phase -29i33, 3,10,, 18; the second half-phase of the second phase is 12, 16, 20, 27, 31, 1; the first half-phase of the third phase is 5, 9, 13 2k, 28, 32 ,. the second half-phase of the third phase - 22, 26, 30, 7, 11, 15, with the coil groups with numbers 19 23, 2, 6, 29, 33, 3, 12., 16, 20, 5, 9, 13, 22, 2b, 30, are connected in series-vsta (each other coil group of the corresponding semi-phases, where P 8; P „1 are the number of pairs of winding poles; P2 is the number of equal parts of the winding; Z is the number of coils of the winding; K is a positive integer, k The drawing shows a winding scheme for 2 and 16 poles laid in 48 slots. In this case,. At the same time, the alternation of the numbers of coils in the coil groups with a row -1, 2, 1, 2, 1, corresponds to L 1, 2, 1 , 1 1 2 1 7 1,}, 1, l, I, /., I, 2, 1,2, 1, 2 , 1, 1, 2, 1, 2, 1, 1, 2, 1, 2, 1. In the first half-phase of the first phase, connected to terminals 1bC - 2C, the coil groups with numbers 3, 8, 19, 23 are included. In the second half-phase of the first phase, connected to the terminal 2C and the zero point O, the coil groups from numbers 17, 21, 25, 2, 6 are included. 8 The first half-phase of the second phase, connected to the terminals 16 2 Cr, includes the coil groups with numbers 29 , 33, 3, Yu, 14 18. The second half-phase of the second phase, connected to the clamp 20 and zero point O, includes coil groups with numbers 12, 16, 20, 27, 31.1. The first half-phase of the third phase, connected to clamp am 16 Cj- 20, includes coil groups with numbers 5, 9, 13, 2k, 28, 32. The second half-phase of the third phase, connected to terminal 2Cj, and zero point O, includes coil groups with numbers 22, 26, 30 , 7, 11, 15B in each of the semi-phases, the coil groups with numbers 19, 23, 2,. 6, 29, 33, 3, 12, 16, 20, 5, 9, 13, 22, 26 30 are connected in series with each other coil groups of corresponding semi-phases. Switching poses is carried out according to the scheme star double star. When connected with 1bC, TbS, 160, to the supplying network and free terminals 2C., Cj, the winding creates a rotating magnetic field with the number of poles j equal to eleven. When connected Zaims 2C-), 2Sp, 2Sz and closed loan,; 1bC, 1b C2, 16 Co a fertile field arises with the number of poles equal to two. The winding allows a more complete use of the active materials of the engine by increasing the winding coefficient at 2ff} (, (0.866 compared to 0.781 by 5) and, therefore, improving its energy performance. Invention Three-phase two-speed pole-switched winding by two numbers of pole pairs that are multiples P and P, containing PQ equal parts with the number of Z / PQ 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, different from In order to improve the use of active materials, within one part of the winding with a number of coils that are multiples of 48, there are 34 coil groups, the numbers of coils in each of which, for example, starting with the first, correspond to the row: 1K, 2K, 1K , 2К, Ж, 2К, 1К, 1К, 2К, Ж, 2К, Ж, Ж, 2К,, 1К, 2К, Ж, Ж, 2К, Ж, 2К, Ж, 2К, Ж, Ж, 2К, Ж, 2К, Ж, Ж, 2К, Ж, 2К, Ж, with each coil phase including coil groups having the following sequence numbers in the above range: the first semi-phase of the first phase — 34, 4, 8, 19, 23; second half-phase of the first phase -17, 21, 25, 2, 6; first half-phase of the second phase 29, 33, 3, 10, 14, 18; the second half-phase of the second phase is 12.16, 20, 27, 31, 1; the first half-phase of the third phase 5, 9, 13, 24, 28, 32, the second half-phase of the third phase - 22, 26, 30, 7, 11, 15, with the coil groups with the numbers 19, 23, 2, 6, 29, 33, 3, 12, 16,20, 5, 9, 13, 22, 26, 30 are connected in series to other coil groups of the corresponding semi-phases, where P 8, P 1 are the numbers of pairs of winding poles; RD - D P, - the number of identical parts of the winding; Z is the number of winding coils; K - positive integer number K 4: 8.- rp. Sources of information taken into account during the examination 39 № ff № № 1. Author's certificate of the USSR 9969, 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 399972, cl. H 02 K 3/28, 1970. k. USSR author's certificate 399967, cl. H 02 K 3/28, 1970. 5. Patent of Great Britain 1123 92, cl. H 2 A 11 C, 1972.