SU978273A2

SU978273A2 - Versions of combinated three-phase/one-phase winding of electric machines

Info

Publication number: SU978273A2
Application number: SU813269624A
Authority: SU
Inventors: Виктор Иванович Попов; Игорь Александрович Гурьянов; Лев Николаевич Макаров; Игорь Михайлович Чебурахин
Original assignee: Горьковский Ордена Трудового Красного Знамени Политехнический Институт Им.А.А.Жданова; Ярославский Электромашиностроительный Завод
Priority date: 1981-04-03
Filing date: 1981-04-03
Publication date: 1982-11-30

Description

Изобретение относится к совмещенным обмоткам электрических машин переменного тока ^!и может применяться, например, в одноименных преобразователях частоты и числа фаз.The invention relates to combined windings of electrical machines of alternating current ^! and can be used, for example, in the same frequency and phase number converters.

По основному авт.св. If 788278 5 известна совмещенная трехфазно-однофазная обмотка,выполненная с числами пар полюсов p_s/p₁ =4 и содержащая 12 распределенных катушечных групп, включенных в две параллельные ветви, ¹⁰начала которых образуют трехфазные входные зажимы для полюсности р^. , а концы подключены к двум нулевым выво- * дам₍являющимся зажимами для полюсное* ти р^, в двух фазах которой начала групп первой и второй образуют входной зажим, их концы соединены с концами групп соответственно восьмой и седьмой и номера групп Фаз чередуются с интервалом в четыре группы, а в третьей фазе входной зажим образован началом девятой и концом четвертой групп, конец группы девятой сое2 динен с началом десятой, начало четвертой - с концом третьей, причем начала групп третьей, седьмой и двенадцатой соединены в один нулевой вывод, а конец десятой, начала восьмой и одиннадцатой - в другой нулевой вывод. Такая обмотка может выполняться двухслойной или (при q=Z/1 2= четное число) однослойной [1j.By main auto If 788278 5, a combined three-phase-single-phase winding is known, made with the number of pole pairs p _s / p ₁ = 4 and containing 12 distributed coil groups included in two parallel branches, ^{10 of} whose beginnings form three-phase input terminals for the p ^ pole. , and the ends are connected to two zero outputs * ₍ which are clamps for the pole * type p ^, in two phases of which the beginning of the groups of the first and second form an input terminal, their ends are connected to the ends of the groups of the eighth and seventh, and the numbers of the Phase groups alternate with with an interval of four groups, and in the third phase, the input clamp is formed by the beginning of the ninth and end of the fourth group, the end of the group of the ninth soy2 is connected with the beginning of the tenth, the beginning of the fourth with the end of the third, and the beginning of the groups of the third, seventh and twelfth are connected to one zero output, and con q tenth, the eighth and eleventh -. in another zero withdrawal Such winding can be performed or a bilayer (if q = Z / February 1 = even number) monolayer [1j.

Недостаток конструкции - сложная технология изготовления.The design drawback is the complicated manufacturing technology.

Целью изобретения является упрощение конструкции и технологии изготовления путем выполнения обмотки из концентрических катушек.The aim of the invention is to simplify the design and manufacturing technology by performing windings from concentric coils.

Указанная цель достигается тем, что катушечные группы выполнены из концентрических катушек с шагами по пазам γ^=5ς-1-2(ϊ -1) , наружная катушка содержит вдвое большее число витков, чем катушки внутренние, и ее стороны расположены в паха однослойно, а стороны внутренних катушек двухслойно, где q=Z/12>3 целое не978273 в пазах од3 четное число; Z - число пазов; 1=1 (q-1) - номер катушки в группе; при q=Z/12)r2 - целое четное число стороны катушек расположены нослойно и число катушек в группе равно q/2.This goal is achieved in that the coil groups are made of concentric coils with groove steps γ ^ = 5ς-1-2 (ϊ -1), the outer coil contains twice as many turns as the coils are internal, and its sides are located in the groin in a single layer, and the sides of the internal coils are two-layered, where q = Z / 12> 3 is an integer not 978273 in the grooves of od3 is an even number; Z is the number of grooves; 1 = 1 (q-1) is the number of the coil in the group; at q = Z / 12) r2 is an even integer number of sides of the coils are nilayer and the number of coils in the group is q / 2.

На фиг. 1 изображена схема предлагаемой обмотки, выполненной в Z=36 пазах с р.=1 и р^=4; на фиг.2 - то же, в Ζ=4ο пазах с р^=1 ^и Р_г=4.In FIG. 1 shows a diagram of the proposed winding made in Z = 36 grooves with p. = 1 and p ^ = 4; figure 2 is the same, in Ζ = 4ο grooves with p ^ = 1 ^and P _r = 4.

Обмотка ( фиг.1) имеет q=Z/1? =3, выполнена из 12 концентрических катушечных групп с номерами от 1 до 12 каждая группа содержит q-1=2 катушки с шагами по пазам у.=5q-1-2(i-1)=4 и 12, где 1 = 1,2 - н¹омер катушки в группе. Стороны наружных катушек расположены в пазах однослойно, а внутренних - двухслойно. Число витков наружных катушек вдвое больше, чем внутренних. Начала фаз обозначены как C1 , С2, СЗ, а нулевые выводы - как 01 и 02. Соединения катушечных групп выполнены по схеме (буквы н” и к соответствуют началам и концам групп)'The winding (figure 1) has q = Z / 1? = 3, is made of 12 concentric coil groups with numbers from 1 to 12, each group contains q-1 = 2 coils with groove steps y = 5q-1-2 (i-1) = 4 and 12, where 1 = 1 , 2 - n ¹ omer coils in the group. The sides of the outer coils are single-layer in the grooves, and the inner two-layer coils. The number of turns of the external coils is twice as many as the internal. The beginnings of phases are designated as C1, C2, C3, and the zero leads are 01 and 02. The connections of the coil groups are made according to the scheme (the letters n ”and k correspond to the beginnings and ends of the groups) '

С1C1

С2C2

- 1н - 1n 1к-8к 1k-8k 8н 8n - 2н - 2n 2к-7к 2k-7k 7н 7n - 5н - 5n 5к-1-2к 5k-1-2k 1 7н< 1 7n < - 6н - 6n 6к-11 к 6k-11k 11ж 11g Г ^9н G ⁹ⁿ 9к-10н 9k-10n Юк Yuk 4к 4k 4н~3к 4n ~ 3k За J For j Обмотка Winding (фиг.2) (figure 2) имеет It has

·. ~П2 _ч01 сз q=Z/12=4, выполнена из 12 катушечных групп с концентрическими катушками, шаги которых по пазам равны у^=5ц,-1-2 (i-1 ) = =19 и 17- Число катушек в группе равно q/2=2. Соединения групп и обозначения на фиг.2 те же, что и на фиг.1. Стороны катушек расположены в пазах однослойно и все катушки равновитковые.·. ~ P2 _h 01 sz q = Z / 12 = 4, made of 12 coil groups with concentric coils, whose groove steps are y ^ = 5h, -1-2 (i-1) = 19 and 17- The number of coils in the group is q / 2 = 2. The compounds of the groups and the symbols in Fig. 2 are the same as in Fig. 1. The sides of the coils are single-layer in the grooves and all coils are equal-turn.

Верхний ряд стрелок на фиг.1 и 2 показывает направления токов при питании обмотки через выводы Cl, С2, СЗ трехфазным током (для момента времени, когда ток в фазе С1 имеет максимальное значение); нижний ряд стрелок показывает направления токов при питании обмотки через выводы 01 и 02 постоянным током.The upper row of arrows in FIGS. 1 and 2 shows the directions of the currents when feeding the winding through the terminals Cl, C2, C3 with a three-phase current (for the point in time when the current in phase C1 has a maximum value); the lower row of arrows shows the direction of the currents when feeding the winding through the terminals 01 and 02 with direct current.

Обмотка (фиг.1) имеет обмоточный коэффициент для полюсности о =^1 «^=0,884; обмотка, выполненная двухслойной в Z=36 пазах с шагом. у=13 по основному изобретению, имеет «0^=0,867. Таким образом, предлагаемая обмотка имеет лучшее использование меди и, кроме того, проще в изготовлении и надежнее в эксплуатации , чем обмотка по основному изобретению.The winding (figure 1) has a winding coefficient for the pole o = ^ 1 "^ = 0.884; winding made in two layers in Z = 36 grooves in increments. y = 13 according to the main invention, has "0 ^ = 0.867. Thus, the proposed winding has a better use of copper and, in addition, is easier to manufacture and more reliable in operation than the winding according to the main invention.

Предлагаемая обмотка может применяться, например, на статоре асинхронно-синхронного одномашиннного преобразователя частоты 50/200 Гц для одновременного создания на статоре 2р^ =2 полюсного вращающегося поля двигателя и =8-полюсного поля возбуждения обращенного синхронного генератора, напряжение преобразованной частоты в котором снимается с трех контактных колец ротора.The proposed winding can be used, for example, on the stator of an asynchronous-synchronous single-machine frequency converter 50/200 Hz to simultaneously create on the stator 2p ^ = 2 pole rotating field of the motor and = 8-pole field of excitation of the inverted synchronous generator, in which the voltage of the converted frequency is removed from three contact rings of a rotor.

Claims

The invention relates to co-located windings of electric machines of alternating current and can be applied, for example, in the like converters of frequency and number of phases. According to the main auth. tf 788278 known combined three-phase-single-phase winding, made with the numbers of pairs of poles k and containing 12 distributed coil groups included in two parallel branches, the beginnings of which form three-phase input terminals for polarity p, and the ends connected to two zero outputs, which are clamps for pole f, in two phases of which the beginning of the first and second groups form an input terminal, their ends are connected to the ends of the eighth and seventh groups and the numbers of the phase groups alternate at intervals of four groups, and in the third In the beginning, the input terminal is formed by the beginning of the ninth and the end of the fourth group, the end of the ninth group is connected to the beginning of the tenth, the beginning of the fourth is the end of the third, and the beginning of the third, seventh and twelfth groups are connected to one zero output, and the end of the tenth, beginning of the eighth and the eleventh to another zero point. Such a winding can be performed in a two-layer or (for 2 even number) single-layer one. The disadvantage of the design is complicated manufacturing techniques. The aim of the invention is to simplify the design and manufacturing technology by making windings from concentric coils. This goal is achieved by the fact that the coil groups are made of concentric coils with steps along the grooves v 5q-1-2 (il), the outer coil contains twice the number of turns than the inner coils, and its sides are located in the groin single-layer, and the sides of the inner coils are double-layered, where qeZ / 12 3 is an integer not even an even number; Z is the number of slots; , 2 (q-1) - the number of coils in the group; at - an even number of sides of the coils are located in the grooves in a single layer and the number of coils in the group is q / 2. FIG. 1 shows a diagram of the proposed winding, made in and in FIG. 2 - then the slots with p.1 slots. With p. 1 and p- W € j о v lj) t Winding (Fig. Ijl has 3, made of 12 concentric coil groups with numbers from 1 to 12, each group contains coils with steps along the grooves in fiq-1-2 (i-1) C and 12, where, 2 is the coil number in the group. The sides of the outer coils are single-layered in the grooves, and the inner coils are double-layered. There are twice as many outer coils than the inner coils. 02. The connections of the coil groups are made according to the scheme (the letters and and to correspond to the beginnings and the ends of the groups. The winding (figure 2) has, is made of 12 coils groups with concentric coils, the steps of which in grooves are equal to y, (i-1) 19 and 17. The number of coils in the group is equal. The connections of the groups and designations in Fig. 2 are the same as in Fig. 1. The sides of the coils are located The grooves are single-layer and all the coils are equal-turn. The upper row of arrows in Figures 1 and 2 shows the direction of the currents when the winding is supplied through the terminals C1, C2, C3 with three-phase current (for the time when the current in phase C1 has the maximum value); The bottom row of arrows indicates the direction of the currents when powering the winding through the terminals 01 and 02 with a constant current. 3 The winding (FIG. 1) has a winding factor for polarity p 1, 88A; winding, made of two-layer in grooves in increments. according to the basic invention, it has 0.867. Thus, the proposed winding has a better use of copper and, moreover, is easier to manufacture and more reliable in operation than the winding according to the basic invention. The proposed winding can be used, for example, on the stator of an asynchronous-synchronous single-frequency frequency converter 50/200 Hz to simultaneously create on the stator 2p 2 a pole rotating motor field and a 2p 8-field excitation field of the inverted synchronous generator, the voltage of the converted frequency is removed from three slip rings of a rotor. Claim 1. In-line three-phase-single-phase winding of electrical machines according to ed. St. No. 788278, characterized in that, in order to simplify the design and manufacturing technology, the coil goups are made of concentric coils with groove steps (i-1), with the outer coil containing twice the number of turns than the internal coils, and a single layer , and internal catalogs are double-layered, where 3 is an integer odd number; Z is the number of slots; , 2 ... (q-1) coil number in the group ..

2. Combined three-phase-single-phase winding of electrical machines by auth.St. ff 788278, characterized in that, in order to simplify the design and manufacturing technology, the coil groups are made of single-layer concentric coils with steps along slots 1 2 (1-1), the number of katupgek in the Group is q / 2, where 2 is an even number ; Z is the number of slots; , 2 ... (q / 2) - coil number 8 group. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 788278, cl. H 02 K 3/28, 1980.