RU2562795C2 - WINDING OF DOUBLE-POLE THREE-PHASE ELECTRIC MACHINE FOR z=18 - Google Patents

WINDING OF DOUBLE-POLE THREE-PHASE ELECTRIC MACHINE FOR z=18 Download PDF

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RU2562795C2
RU2562795C2 RU2013127488/07A RU2013127488A RU2562795C2 RU 2562795 C2 RU2562795 C2 RU 2562795C2 RU 2013127488/07 A RU2013127488/07 A RU 2013127488/07A RU 2013127488 A RU2013127488 A RU 2013127488A RU 2562795 C2 RU2562795 C2 RU 2562795C2
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coils
turns
winding
double
outputs
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RU2013127488/07A
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RU2013127488A (en
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Юрий Михайлович Агриков
Дмитрий Александрович Дуюнов
Сергей Александрович Иванов
Вадим Леонидович Блинов
Игорь Николаевич Яковлев
Евгений Дмитриевич Дуюнов
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Общество с ограниченной ответственностью "АС и ПП"
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Abstract

FIELD: electricity.
SUBSTANCE: invention is related to electric engineering and may be used at production of submersible borehole pumps, electric vehicles, in particular hybrid vehicles, and battery vehicles. Winding of double-pole three-phase electric machine is made with number of slots z=18, c pitch of y=1-10, with number of parallel branches a=1 and ratio of number of turns in even delta-connected coils to number of turns in odd wye-connected coils equal to √3. Winding includes six single- and double-layered two-section coils with ratio of turn number in single-layered sections to turn number in double-layered sections equal to 2:1. Coil beginnings of wye and delta phases with the same polarity are shifted per 2 slots (40 electrical degrees). The coils are laid in waggle way and their outputs are placed from outer sides of coils or outputs of only even coils are placed from their inner sides. According to another version outputs of coil beginnings of wye and delta phases are placed in the common slot (shift is equal to 0 electrical degrees, at that at inner sides of the coils there are outputs of odd coils only or outputs of all coils.
EFFECT: implementation of double-pole three-phase energy-efficient and low-noise electric machine with number of slots of z=18, with pitch of y=1-10 and number of parallel branches of a=1.
2 cl, 4 dwg

Description

The invention relates to energy-efficient low noise AC electric machines. It can be used, for example, in the production of submersible borehole pumps, electric vehicles, in particular hybrid and electric vehicles.

It is known that in a classical asynchronous motor with a star or triangle winding, due to the presence of higher odd harmonics, the magnetic field of the winding in the air gap is not sinusoidal and a steplike curve of the magnetomotive force is very different from the sine wave (M.D.S.) [1 -3]. This leads to modulation of the traction of the rotor - there are accelerations and decelerations of its rotation, which causes an undesirable decrease in the operational characteristics of the engine [2, 2]. Therefore, engine manufacturers, in particular, in order to lower their noise and vibration levels, seek the MDS curve. in the gap closer to the sinusoid in various ways [2, 2].

Known three-phase AC motor [4], including a distributed winding of the armature, consisting of the first and second winding parts, each of which is a three-phase winding, with the first part connected in a triangle and the second part connected in a star connected to a three-phase power connectors. In one of the engine variants, the amplitudes of the magnetic induction vectors E d and E y , induced, respectively, by the winding of the triangle and the winding of the star, are not the same in magnitude and satisfy the relation E d / E y = 3

Figure 00000001
, and the angle between them is 30 el. hail., which leads to the suppression of only part of the higher odd harmonics. This is a disadvantage of the motor winding.

Known stator winding of a two-pole three-phase asynchronous motor [5], made of two three-phase windings, which are connected one in a triangle and the other in a star, with the ratio of the number of turns of the windings of the triangle and the star equal to 3

Figure 00000002
, and the beginning of the conclusions of the same phases of both windings are shifted by 30 el. hail. relative to each other.

The disadvantage of this invention is the inability to implement a winding with a shift in the beginnings of the same phases by an angle not equal to 30 e. hail.

Energy-efficient rotating machines are known [6, 7], which include a stator winding consisting of two combined windings connected, respectively, to a star and a triangle. At the same time, each phase has an equal number of grooves, the coils of different phases are stacked in different grooves so that the resulting magnetic flux induction vectors of each of the neighboring phases form an angle of 30 el. hail., odd phases are connected into a star, and even phases into a triangle, or vice versa. The interconnected conclusions of the coils of the same phases of the star and the triangle (spaced 30 electrical degrees apart) form the points of connection of the phases to the supply network.

In this case, suppression of spurious higher odd harmonics is achieved.

Proposed as an invention, embodiments of combined windings with z = 18 make it possible to realize a technical result in the form of an energy-efficient low-noise machine for a wider range of different applications, for example, in electric drive of vehicles with low heat emission to the environment due to low energy consumption.

The first version of this winding (Fig. 1) allows you to automatically lay the winding, to produce machines with increased requirements for the size of the departure of the frontal parts and their vibration resistance. This is achieved by the fact that the winding of a bipolar three-phase electric machine with the number of slots z = 18, with a step y = 1-10, with the number of parallel branches a = 1 and the ratio of the number of turns of even coils connected into a triangle to the number of turns of odd coils connected into a star, is equal to √3, includes six one-two-layer two-section chain coils with a ratio of the number of turns in single-layer sections to the number of turns in two-layer sections equal to 2: 1, the terminals are located on the outer sides of the coils, while the winding contains even and odd coils, laid crashes, and the beginning of the coils of the same phases of the star and the triangle are shifted by 2 grooves (40 el. degrees).

The second option (Fig. 2) allows you to implement a semi-automatic laying of the winding. This is achieved by the fact that, in contrast to the first option, the conclusions of even coils are made on the inner sides of the coils, and the conclusions of the beginning of the coils of the same phases of the star and triangle are shifted by 1 groove (20 el. Degrees).

The third option (Fig. 3) allows the manufacture of machines with increased requirements for resistance to breakdown of insulation in the groove. This is achieved by the fact that, unlike the first version, the winding contains the conclusions of the odd coils made on the inner sides of the coils, and the conclusions of the beginnings of the coils of the same phases of the star and the triangle are located in a common groove (the offset is 0 electric degrees).

The fourth option (Fig. 4) allows the manufacture of machines with increased vibration resistance of the frontal parts, as well as increased resistance to breakdown in two-layer grooves. This is achieved by the fact that, unlike the first option, the winding contains coils laid in a breakup, and the leads of the coils are made on the inner sides of the coils, while the leads of the coils of the same phases of the star and triangle are located in a common groove (offset is 0 electric degrees) .

The principle of operation of the machine with the proposed winding options is the same as that of the known machines with combined windings.

Information sources

1. Design of electrical machines. Ed. I.P. Kopylova. M .: Energy, 1980.

2. A.V. Barkov, N.A. Barkova. Intelligent systems for monitoring and diagnosing vibration machines. Proceedings of the St. Petersburg Energy Institute of Advanced Studies of the Ministry of Fuel and Energy and the Institute of Vibrations of the United States, issue 9, St. Petersburg, 1999.

3. A.V. Ivanov-Smolensky. Electric cars. M .: Publishing house MPEI, t.1, 2006.

4. Patent GB 1257195 A, 12/15/1971.

5. Patent RU 2046515 C1, 10.10.1995.

6. Patent for PM RU 109934 U1, 10.27.2011.

7 Patent for PM RU 113090 U1, 01/27/2012.

8. P.V. Tembel, G.V. Gerashchenko "Guide to the winding data of electrical machines and apparatus." Kiev, "Technique", 1981

Claims (2)

1. The winding combined bipolar three-phase electric machine with the number of grooves z = 18, with a step of y = 1-10, with the number of parallel branches a = 1 and the ratio of the number of turns of the even coils connected into a triangle to the number of turns of the odd coils connected into a star, equal to √ 3, includes six one-two-layer two-section chain coils, characterized in that the ratio of the number of turns in single-layer sections to the number of turns in two-layer sections is 2: 1, the beginning of the coils of the same phases of the star and triangle are shifted by 2 grooves (40 el. .), coils lozheny waddling, and their terminals are located on the outer sides of the coils or outputs only the even coils are arranged on the inner sides.
2. The winding combined bipolar three-phase electric machine with the number of grooves z = 18, with a step of y = 1-10, with the number of parallel branches a = 1 and the ratio of the number of turns of the even coils connected into a triangle to the number of turns of the odd coils connected into a star, equal to √ 3, includes six one-two-layer two-section chain coils, characterized in that the ratio of the number of turns in single-layer sections to the number of turns in two-layer sections is 2: 1, the leads of the coils of the same phases of the star and triangle are located in a common groove (offset is equal to 0 electric degrees), the coils are stacked in a fork, while on the inner sides of the coils are located the conclusions of only odd coils or the conclusions of all coils.
RU2013127488/07A 2013-06-17 2013-06-17 WINDING OF DOUBLE-POLE THREE-PHASE ELECTRIC MACHINE FOR z=18 RU2562795C2 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU176753U1 (en) * 2017-03-21 2018-01-29 Общество с ограниченной ответственностью "ТаграС-ЭнергоСервис" Energy Efficient Induction Motor Winding
RU197319U1 (en) * 2020-01-23 2020-04-21 Федеральное государственное бюджетное образовательное учреждение высшего образования "Ижевская государственная сельскохозяйственная академия" Three-phase 12-zone one-two-layer stator winding
RU2735288C1 (en) * 2019-12-09 2020-10-29 Федеральное государственное бюджетное образовательное учреждение высшего образования "Ижевская государственная сельскохозяйственная академия" Three-phase 12-zone two-layer stator winding with reduced content of higher spatial harmonics in magnetomotive force
RU2738903C1 (en) * 2020-04-21 2020-12-18 Общество с ограниченной ответственностью "СовЭлМаш" Induction motor of motor-wheel

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GB1257195A (en) * 1968-07-31 1971-12-15
RU2046515C1 (en) * 1991-07-22 1995-10-20 Научно-исследовательский, проектно-конструкторский и технологический институт Научно-производственного объединения "Кузбассэлектромотор" Stator winding of double-pole three-phase induction motor
US6455974B1 (en) * 2000-09-28 2002-09-24 General Electric Company Combined Delta-Wye armature winding for synchronous generators and method
RU2268539C1 (en) * 2004-04-27 2006-01-20 Открытое акционерное общество Ярославский электромашиностроительный завод - ОАО "ELDIN" (ЭЛДИН) THREE-PHASED ONE-LAYERED ELECTRO-MECHANICAL WINDING WITH 2p=2c POLES WITHIN z-36c GROOVES
EP1981154A1 (en) * 2006-02-01 2008-10-15 Mitsubishi Electric Corporation Dynamo-electric machine
JP2009165318A (en) * 2008-01-10 2009-07-23 Hitachi Ltd Ac generator for vehicle
RU109934U1 (en) * 2011-05-23 2011-10-27 Общество с ограниченной ответственностью "АС и ПП" Asynchronous rotating machine
RU113090U1 (en) * 2011-09-07 2012-01-27 Общество с ограниченной ответственностью "АС и ПП" Synchronous rotating machine with combined winding

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Publication number Priority date Publication date Assignee Title
GB1257195A (en) * 1968-07-31 1971-12-15
RU2046515C1 (en) * 1991-07-22 1995-10-20 Научно-исследовательский, проектно-конструкторский и технологический институт Научно-производственного объединения "Кузбассэлектромотор" Stator winding of double-pole three-phase induction motor
US6455974B1 (en) * 2000-09-28 2002-09-24 General Electric Company Combined Delta-Wye armature winding for synchronous generators and method
RU2268539C1 (en) * 2004-04-27 2006-01-20 Открытое акционерное общество Ярославский электромашиностроительный завод - ОАО "ELDIN" (ЭЛДИН) THREE-PHASED ONE-LAYERED ELECTRO-MECHANICAL WINDING WITH 2p=2c POLES WITHIN z-36c GROOVES
EP1981154A1 (en) * 2006-02-01 2008-10-15 Mitsubishi Electric Corporation Dynamo-electric machine
JP2009165318A (en) * 2008-01-10 2009-07-23 Hitachi Ltd Ac generator for vehicle
RU109934U1 (en) * 2011-05-23 2011-10-27 Общество с ограниченной ответственностью "АС и ПП" Asynchronous rotating machine
RU113090U1 (en) * 2011-09-07 2012-01-27 Общество с ограниченной ответственностью "АС и ПП" Synchronous rotating machine with combined winding

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Title
ТЕМПБЕЛЬ П.В. и др., Справочник по обмоточным данным электрических машин и аппаратов, Киев, Техника, 1981. ЖЕРВЕ Г.К. , Обмотки электрических машин, Ленинград, 1989, Энергоатомиздат, Ленинг.отд.(с.53-55, фиг 1б,г). *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU176753U1 (en) * 2017-03-21 2018-01-29 Общество с ограниченной ответственностью "ТаграС-ЭнергоСервис" Energy Efficient Induction Motor Winding
RU2735288C1 (en) * 2019-12-09 2020-10-29 Федеральное государственное бюджетное образовательное учреждение высшего образования "Ижевская государственная сельскохозяйственная академия" Three-phase 12-zone two-layer stator winding with reduced content of higher spatial harmonics in magnetomotive force
RU197319U1 (en) * 2020-01-23 2020-04-21 Федеральное государственное бюджетное образовательное учреждение высшего образования "Ижевская государственная сельскохозяйственная академия" Three-phase 12-zone one-two-layer stator winding
RU2738903C1 (en) * 2020-04-21 2020-12-18 Общество с ограниченной ответственностью "СовЭлМаш" Induction motor of motor-wheel

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