SU1265917A1

SU1265917A1 - Combined three-phase - one-phase winding of electric machine

Info

Publication number: SU1265917A1
Application number: SU853865090A
Authority: SU
Inventors: Игорь Иванович Краштан
Original assignee: Институт Электродинамики Ан Усср; Специальное конструкторско-технологическое бюро Института электродинамики АН УССР
Priority date: 1985-03-15
Filing date: 1985-03-15
Publication date: 1986-10-23

Description

Изобретение относитс к обмоткам электрических машин переменного тока и может быть использовано, например, в одномашинных преобразовател х частоты и числа фаз.The invention relates to the windings of electric machines of alternating current and can be used, for example, in single-machine frequency and phase converters.

Цель изобретени - улучшение использовани активных материалов, упрощение конструкции обмотки и расширение области применени путем выполнени дл числа пазов , кратного 36.The purpose of the invention is to improve the use of active materials, simplify the winding design and expand the scope of use by making for the number of slots a multiple of 36.

На чертеже приведена схема обмотки на 4 и 2 полюса, выполненна в 36 пазах, The drawing shows the scheme of the winding on the 4 and 2 poles, made in 36 slots,

Обмотка содержит восемь катушечных групп 1-8. Катушки в группах расположены концентрически.The winding contains eight coil groups 1-8. Coils in groups are arranged concentrically.

При чередование чисел катушек в катушечных группах соответствует р ду 2, 3, 3, 1, 2, 3, 3, 1, Дл предлагаемой обмотки Уср 9.When alternating the numbers of coils in the coil groups corresponds to the series 2, 3, 3, 1, 2, 3, 3, 1, For the proposed winding Usr 9.

В первую фазу, присоединенную к выводу С1, включены соединенные последовательно-встречно группы 4 и 5 в одной ветви, 8 и 1 в другой.In the first phase, attached to the output C1, the groups 4 and 5 connected in series to each other in one branch, 8 and 1 in the other are included.

Во вторую фазу, присоединенную к зажиму С2, включены катушечна группа 3 в одной ветви и 7 в другой.In the second phase, attached to terminal C2, coil group 3 is included in one branch and 7 in the other.

В третью фазу, присоединенную к зажиму СЗ, включены группа 6 в одной ветви и 2 в другой.In the third phase, attached to the NW clamp, group 6 is included in one branch and 2 in the other.

Концы групп 1 и 3 и начало группы 6 подключены к выводу 01, а концы групп 5 и 7 и начало группы 2 - к выводу 02.The ends of groups 1 and 3 and the beginning of group 6 are connected to pin 01, and the ends of groups 5 and 7 and the beginning of group 2 to pin 02.

Нижний р д стрелок на чертеже показывает направлени токов при питании обмотки через выводы С1, С2, и СЗ трехфазным током (2Pi 4), а верхний р д - при питании обмотки через выводы 01 и 02 посто нным током (2Р2 2).The bottom row of arrows in the drawing shows the direction of the currents when powering the winding through terminals C1, C2, and Sz by three-phase current (2Pi 4), and the upper series when feeding the winding through terminals 01 and 02 with direct current (2P2 2).

Дл предлагаемой обмотки Коб 0,96, Коб2 0,64, а дл известной обмотки Коб1 0,933, Коб2 0,45.For the proposed winding, Kob 0.96, Kob2 0.64, and for the known winding Kob1 0.933, Kob2 0.45.

Таким образом, использование меди предлагаемой обмотки выше в 1,03 раза при 2Р| 4 и в 1,42 при 2Р2 2.Thus, the use of copper in the proposed winding is 1.03 times higher at 2P | 4 and 1.42 at 2P2 2.

Обмотка менее трудоемка в изготовлении, так как выполнена однослойной, и может быть использована при числе пазов, кратном 36.The winding is less labor-intensive to manufacture, since it is made single-layer, and can be used when the number of slots is a multiple of 36.

Claims

Invention Formula

Combined three-phase single-phase electric machine with pole numbers 2Pt and 2P multiples of 4 and 2, containing coil groups included in two parallel three-phase stars, equipped with leads from the beginning of the phases and zero points of the stars, characterized in that, to improve utilization active materials, simplifying the design and expanding the field of application by making for the number of slots multiple of 36, the winding is made single-layer with the number of coil groups multiple of eight, the number of coils in each of which, for example, from the first, correspond to the 2K, 3K, 3K, 1K, 2K, 3K, 3K, 1K series (K Z / 36, Z is the number of slots) and are made with an average step multiple of nine, while the first phase includes the first star groups 4 and 5, 8 and 1 connected in series to each other - in the first phase of the second star, group 3 and 7 are included in the second phase of the first star - in the second phase of the second star; group 6 and 2 are included in the third phase of the first star, the third star is included in the third phase, one zero output is formed by connecting the ends of coil groups 1, 3 and beginning 6, and the other zero output is formed by connecting the ends of groups 5, 7 and beginning 2.