SU117933A1 - Method for increasing power factor of three-phase current converters and device for its implementation - Google Patents

Method for increasing power factor of three-phase current converters and device for its implementation

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Publication number
SU117933A1
SU117933A1 SU588440A SU588440A SU117933A1 SU 117933 A1 SU117933 A1 SU 117933A1 SU 588440 A SU588440 A SU 588440A SU 588440 A SU588440 A SU 588440A SU 117933 A1 SU117933 A1 SU 117933A1
Authority
SU
USSR - Soviet Union
Prior art keywords
phase current
power factor
implementation
current converters
increasing power
Prior art date
Application number
SU588440A
Other languages
Russian (ru)
Inventor
В.Т. Енин
Original Assignee
В.Т. Енин
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 В.Т. Енин filed Critical В.Т. Енин
Priority to SU588440A priority Critical patent/SU117933A1/en
Application granted granted Critical
Publication of SU117933A1 publication Critical patent/SU117933A1/en

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Description

При известных способах повышени  коэффициента мощности преобразователей трехфазного тока путем осуществлени  искусственной коммутации возникают перенапр жени  на вентил х и обмотках трансформаторов .With the known methods of increasing the power factor of three-phase current converters by performing artificial switching, overvoltages occur on the valves and windings of the transformers.

ГТредлагаемый способ более совершенен, так как он свободен от указанного недостатка.The proposed method is more perfect, since it is free from this drawback.

Это достигаетс  в результате того, что на напр жение, вторичных обмоток анодного трансформатора накладываетс  напр жение утроенной частоты, сдвинутое по отношению к напр жению анодного трансформатора на 30 эл. гр.This is due to the fact that the voltage of the secondary windings of the anode transformer is superimposed on a voltage of three times the frequency shifted relative to the voltage of the anode transformer by 30 e. gr.

На фиг. 1 и 2 чертежа изображены схемы устройства дл  осуществлени  предлагаемого способа в двух вариантах исполнени .FIG. 1 and 2 of the drawings show diagrams of the device for carrying out the inventive method in two versions.

Устройство представл ет собой преобразователь трехфазного тока, выполнопныйпо мостовой схеме (фиг. 1) или по схеме треугольник - шестифазна  звезда (фнг. 2).The device is a three-phase current converter, made in a bridge circuit (Fig. 1) or in a delta-six-phase star (fig 2).

Преобразователь содержит утроитель частоты /, вторична  обмотка которого соединена по схеме открытый треугольник и включена последовательно со вторичными обмотками анодных трансформаторов 2, соединенными в звезду. Первичные обмотки анодных трансформаторов 2 и утроител  частоты / соединенысоответственно по схемам треугольник и звезда. Такое соединение обмоток трансформаторов и утроител  частоты обеспечивает сдвиг фазы напр жени  утроител  частоты относительно фазовых напр жений на 30 эл. гр.The converter contains frequency tripler /, the secondary winding of which is connected by an open triangle and is connected in series with the secondary windings of anode transformers 2 connected in a star. The primary windings of the anode transformers 2 and frequency tripler / connected, respectively, according to the triangle and star. Such a connection of the transformer windings and the frequency tripler provides the phase shift of the frequency triplier voltage relative to phase voltages by 30 e. gr.

Предмет изобретени Subject invention

1.Способ повышени  коэффициента мощности преобразователей трехфазного тока путем осуществлени  искусственной коммутации, о тличающийс  тем, что, с целью устранени  перенапр жений на вентил х и обмотках трансформаторов, на напр жение вторичных обмоток анодного трансформатора накладываетс  напр жение утроеннойчастоты , сдвинутое по отношению к напр жению анодного трансформатора на 30 эл. гр.1. A method for increasing the power factor of three-phase current converters by means of artificial switching, in order to eliminate overvoltages on the valves and transformer windings, the voltage of the secondary windings of the anode transformer imposes a voltage trebled frequency, shifted relative to the voltage anode transformer 30 e. gr.

2.Устройство дл  осуществлени  способа по пункту 1, представл ющее собой преобразователь трехфазного тока, выполненный по мостовой2. A device for carrying out the method according to claim 1, which is a three-phase current converter, which is made along a bridge.

схеме или по схеме треугольиик - шестифазна  звезда, отличающеес  тем, что, с целью упрощени , в нем применен трансформатор - утроитель частоты, вторична  обмотка которого соединена по схеме открытый треугольник и включена последовательно со вторичными обмотками анодного трансформатора, соединенными в звезду, а первичные обмотки анодных трансформаторов и утроител  частоты соединены соответственно по схемам треугольник и звезда.a triangle or six-phase star scheme, characterized in that, for the sake of simplicity, it uses a frequency triple transformer, the secondary winding of which is connected in an open triangle and connected in series with the secondary windings of the anode transformer connected in a star, and the primary windings anode transformers and frequency multiplier are connected respectively according to the triangle and star schemes.

Г R

SU588440A 1957-12-23 1957-12-23 Method for increasing power factor of three-phase current converters and device for its implementation SU117933A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU588440A SU117933A1 (en) 1957-12-23 1957-12-23 Method for increasing power factor of three-phase current converters and device for its implementation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU588440A SU117933A1 (en) 1957-12-23 1957-12-23 Method for increasing power factor of three-phase current converters and device for its implementation

Publications (1)

Publication Number Publication Date
SU117933A1 true SU117933A1 (en) 1958-11-30

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SU588440A SU117933A1 (en) 1957-12-23 1957-12-23 Method for increasing power factor of three-phase current converters and device for its implementation

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2658904C1 (en) * 2017-04-10 2018-06-26 Илья Николаевич Джус Two rectifier units control method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2658904C1 (en) * 2017-04-10 2018-06-26 Илья Николаевич Джус Two rectifier units control method

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