SU647827A1 - Arrangement for regulating induction electric motor rpm - Google Patents

Arrangement for regulating induction electric motor rpm

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Publication number
SU647827A1
SU647827A1 SU701447487A SU1447487A SU647827A1 SU 647827 A1 SU647827 A1 SU 647827A1 SU 701447487 A SU701447487 A SU 701447487A SU 1447487 A SU1447487 A SU 1447487A SU 647827 A1 SU647827 A1 SU 647827A1
Authority
SU
USSR - Soviet Union
Prior art keywords
electric motor
arrangement
induction electric
motor rpm
motor
Prior art date
Application number
SU701447487A
Other languages
Russian (ru)
Inventor
Василий Николаевич Фокин
Original Assignee
Fokin Vasilij N
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 Fokin Vasilij N filed Critical Fokin Vasilij N
Priority to SU701447487A priority Critical patent/SU647827A1/en
Application granted granted Critical
Publication of SU647827A1 publication Critical patent/SU647827A1/en

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Description

1one

Изобретение относитс  к области электротехники.This invention relates to the field of electrical engineering.

Известно устройство дл  регулировани  частоты вращени  асинхронного электродвигател  с помощью конденсаторов , включенных последова- тельно в фазы статорной обмотки ij Регулирование частоты вращени  двигател  производитс  изменением емкости конденсаторов. Недостатком такого устройства  вл етс  ступенчатость регулировани  частоты, вращени  из-за отсутстви  конденсаторо с плавно измен емой емкостью.A device for controlling the rotational speed of an asynchronous motor using capacitors connected in series into the stator winding phase ij is known. The rotational speed of the motor is controlled by varying the capacitance of the capacitors. The disadvantage of this device is the stepwise frequency control, rotation due to the absence of a capacitor with a continuously variable capacitance.

Известно другое устройство дл  регулировани  частоты вращени  асинхронного двигател , содержащее управл емый вентильный треугольный элемент, подключенный вершинами к фазам Асинхронного электродвигател  2 . Регулирование частотьа вращени  такого электродвигател  осуществл етс  изменением момента открывани , управл емых вентилей.Another device for controlling the rotational speed of an asynchronous motor is known, comprising a controlled valve triangular element connected by apexes to the phases of Asynchronous motor 2. Adjusting the frequency of rotation of such an electric motor is carried out by varying the opening time of the controlled valves.

Данное устройство  вл етс  наиболее близ.ким к изобретению по технической сущности и достигаемому результату. Недостатками его  вл ютс  сложность регул тора и сравнительно невысокий диапазон регулировани  частоты вращени .This device is closest to the invention in its technical essence and the achieved result. Its drawbacks are the complexity of the regulator and the relatively low range of speed control.

Цельюизобретени   вл етс  упрощение и расширение диапазона регулировани .The purpose of the invention is to simplify and expand the range of adjustment.

Указанна  цель достигаетс  тем, что последовательно с каждой фазой асинхронного:электродвигател  включен конденсатор, а два из трех вентилей треугольного элемента выполнены неуправл емыми.This goal is achieved by the fact that, in series with each phase of the asynchronous one, a capacitor is turned on for the electric motor, and two of the three gates of the triangular element are made uncontrollable.

На чертеже изображена принципиальна  cxSMa устройства.The drawing shows a conceptual cxSMa device.

В фазы 1,2 и 3 двигател  включены , конденсаторы 4, 5 и 6. Концы фаз соединены диодами 7 и 8 и тиристором 9.Phases 1,2 and 3 of the motor are turned on, capacitors 4, 5 and 6. The ends of the phases are connected by diodes 7 and 8 and thyristor 9.

Регулирование частоты вращени  электродвигател  осуществл етс  следующим образом.The rotational speed of the motor is controlled as follows.

ч При включении фаз двигател  в сеть конденсаторы зар жаютс  через диоды 7 и 8. При включении тиристора 9 обмотки 1, 2 и 3 соедин ютс  по схеме звезда и двигатель разгон етс . Регулирование частоты вращени  может быть достигнуто фазным peryjiHpoBaHHeM путем изменени  угла згикигани  тиристора или изменением его частоты переключени .When the phases of the motor are turned on, the capacitors are charged through diodes 7 and 8. When the thyristor 9 is turned on, the windings 1, 2 and 3 are connected in a star circuit and the motor accelerates. Frequency control can be achieved by peryjiHpoBaHHeM phase by changing the angle of the zigkygani of the thyristor or by changing its switching frequency.

Claims (2)

1.Петров И.М. и др. Специальные режимы работы асинхронного двигател , М., Энерги , 1968, с.65-69.1. Petrov I.M. and others. Special operating modes of the asynchronous motor, M., Energie, 1968, p.65-69. 2.Там же, с. 73-75.2. In the same place 73-75.
SU701447487A 1970-06-03 1970-06-03 Arrangement for regulating induction electric motor rpm SU647827A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU701447487A SU647827A1 (en) 1970-06-03 1970-06-03 Arrangement for regulating induction electric motor rpm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU701447487A SU647827A1 (en) 1970-06-03 1970-06-03 Arrangement for regulating induction electric motor rpm

Publications (1)

Publication Number Publication Date
SU647827A1 true SU647827A1 (en) 1979-02-15

Family

ID=20453885

Family Applications (1)

Application Number Title Priority Date Filing Date
SU701447487A SU647827A1 (en) 1970-06-03 1970-06-03 Arrangement for regulating induction electric motor rpm

Country Status (1)

Country Link
SU (1) SU647827A1 (en)

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