RU94041332A - Three-phase fractional slot stator winding - Google Patents

Three-phase fractional slot stator winding

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Publication number
RU94041332A
RU94041332A RU94041332/07A RU94041332A RU94041332A RU 94041332 A RU94041332 A RU 94041332A RU 94041332/07 A RU94041332/07 A RU 94041332/07A RU 94041332 A RU94041332 A RU 94041332A RU 94041332 A RU94041332 A RU 94041332A
Authority
RU
Russia
Prior art keywords
coils
phase
coil
fractional
stator winding
Prior art date
Application number
RU94041332/07A
Other languages
Russian (ru)
Other versions
RU2091959C1 (en
Inventor
В.И. Попов
Ю.Н. Петров
Original Assignee
Волжский инженерно-педагогический институт
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Волжский инженерно-педагогический институт filed Critical Волжский инженерно-педагогический институт
Priority to RU94041332A priority Critical patent/RU2091959C1/en
Publication of RU94041332A publication Critical patent/RU94041332A/en
Application granted granted Critical
Publication of RU2091959C1 publication Critical patent/RU2091959C1/en

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Abstract

FIELD: stator windings of multipole synchronous and induction machines. SUBSTANCE: three-phase fractional-slot (q=6/7) double-layer stator winding with pole number 2p=14 in slots z=36 has C=36 coils placed at slot pitch yand numbered 1C through 36C; in each phase, they are connected in star or in delta. Novelty is that first phase incorporates coils numbered 1C, -3C, 6C, -8C, 11C, 16C, -19C, 21C, -24C, 26C, -29C, -34C; in two other phases, their numbers alternate with intervals of 12 and 24 coils; turn number is (1+k)wfor coils 1C and 2C, (1-x)wfor coils 3C, 4C, 5C, 6C; mentioned grouping of unequal-turns coils alternates every next six coils, where y; minus sign at coil number means differential connection of this coil in phase relative to coil without this sign; 2wis turn number per slot; parameter "x" is chosen within the range of 0,20≅ x≅ 0,30.. EFFECT: improved electromagnetic parameters of winding with fractional slots per pole per phase due to reduced differential dissipation.

Claims (1)

Трехфазная дробная (q = 6,7) обмотка статора относится к обмоткам статора многополюсных электрических машин переменного тока - асинхронных и синхронных. Изобретение позволяет улучшать электромагнитные параметры обмотки с дробным числом пазов на полюс и фазу q = 6,7 путем снижения ее дифференциального рассеяния. Трехфазная дробная (q = 6,7) обмотка статора выполнена двухслойной с числом полюсов 2p = 14 в z = 36 пазах из К = 36 катушек с шагом по пазам Yn и с номерами от 1К до 36К, соединенных в фазах последовательно при сопряжении фаз звездой или треугольником. Новым является то, что в первой фазе включены катушки с номерами 1К, -3К, 6К, -8К, 11К, 16К, -19К, 21К, -24К, 26К, -29К, -34К, а для двух других фаз их номера чередуются с интервалами в двенадцать и в двадцать четыре катушки, при этом числа витков равны по (1+x)Wk для катушек 1К, 2К, по (1-х)Wk для катушек 3К, 4К, 5К, 6К, и указанная группировки неравновитковых катушек чередуется в каждых последующих шести катушках, где Yn = 2; знак минус перед номером катушки означает ее встречное включение в фазе относительно катушки без этого знака; 2Wk - число витков в пазу, а значение параметра "x" выбирается в пределах 0,20≅x≅0,30.The three-phase fractional (q = 6.7) stator winding refers to the stator windings of AC multi-pole electric machines - asynchronous and synchronous. The invention allows to improve the electromagnetic parameters of a winding with a fractional number of grooves per pole and phase q = 6.7 by reducing its differential scattering. The three-phase fractional (q = 6.7) stator winding is made two-layer with the number of poles 2p = 14 in z = 36 grooves from K = 36 coils with pitch in the grooves Y n and with numbers from 1K to 36K, connected in series in phases during phase conjugation star or triangle. New is that in the first phase the coils with numbers 1K, -3K, 6K, -8K, 11K, 16K, -19K, 21K, -24K, 26K, -29K, -34K are turned on, and for the other two phases their numbers alternate at intervals of twelve and twenty-four coils, with the number of turns equal to (1 + x) W k for coils 1K, 2K, along (1-x) W k for coils 3K, 4K, 5K, 6K, and the indicated grouping unequal coils alternate in each subsequent six coils, where Y n = 2; a minus sign in front of the coil number means its counter-inclusion in phase relative to the coil without this sign; 2W k is the number of turns in the groove, and the value of the parameter "x" is selected within the range of 0.20≅x≅0.30.
RU94041332A 1994-11-11 1994-11-11 Three-phase fractional-slot(q=6/7) stator winding RU2091959C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU94041332A RU2091959C1 (en) 1994-11-11 1994-11-11 Three-phase fractional-slot(q=6/7) stator winding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU94041332A RU2091959C1 (en) 1994-11-11 1994-11-11 Three-phase fractional-slot(q=6/7) stator winding

Publications (2)

Publication Number Publication Date
RU94041332A true RU94041332A (en) 1996-09-20
RU2091959C1 RU2091959C1 (en) 1997-09-27

Family

ID=20162430

Family Applications (1)

Application Number Title Priority Date Filing Date
RU94041332A RU2091959C1 (en) 1994-11-11 1994-11-11 Three-phase fractional-slot(q=6/7) stator winding

Country Status (1)

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RU (1) RU2091959C1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2660945C2 (en) * 2016-12-05 2018-07-11 Федеральное государственное бюджетное образовательное учреждение высшего образования "Омский государственный технический университет" Magnetoelectric machine

Also Published As

Publication number Publication date
RU2091959C1 (en) 1997-09-27

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