SU464917A1 - A device for converting a constant voltage into a variable three-phase - Google Patents

A device for converting a constant voltage into a variable three-phase

Info

Publication number
SU464917A1
SU464917A1 SU1638215A SU1638215A SU464917A1 SU 464917 A1 SU464917 A1 SU 464917A1 SU 1638215 A SU1638215 A SU 1638215A SU 1638215 A SU1638215 A SU 1638215A SU 464917 A1 SU464917 A1 SU 464917A1
Authority
SU
USSR - Soviet Union
Prior art keywords
phase
voltage
converting
variable
constant voltage
Prior art date
Application number
SU1638215A
Other languages
Russian (ru)
Inventor
Вячеслав Федорович Гладышев
Константин Дмитриевич Полозов
Александр Георгиевич Жучков
Виктор Михайлович Силантьев
Владимир Дмитриевич Мочалов
Original Assignee
Предприятие П/Я А-1001
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 Предприятие П/Я А-1001 filed Critical Предприятие П/Я А-1001
Priority to SU1638215A priority Critical patent/SU464917A1/en
Application granted granted Critical
Publication of SU464917A1 publication Critical patent/SU464917A1/en

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M5/00Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/02Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
    • H02M5/04Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
    • H02M5/10Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using transformers
    • H02M5/14Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using transformers for conversion between circuits of different phase number

Landscapes

  • Ac-Ac Conversion (AREA)

Description

Устройство работает следующим образом.The device works as follows.

При подключении источника питани  15 к преобразовател м 1 и 2 и подаче на входные цепи этих преобразователей переменных напр жений , вырабатываемых задающим генератором 16 и сдвинутых с помощью распределительного устройства 7 на 120 эл. град, один относительно другого, преобразователи 1 и 2 вырабатывают переменные напр жени , сдвинутые тоже на угол 120 эл. град.When power supply 15 is connected to converters 1 and 2 and alternating voltages are applied to the input circuits of these converters, they are generated by master oscillator 16 and shifted by switchgear 7 by 120 el. hail, one relative to another, converters 1 and 2 produce alternating voltages, also shifted by an angle of 120 e. hail.

На фиг. 2 изображены эпюры выходных напр жений преобразователей 1 и 2 - Ил - и t/g (UA, t/B -напр жени  фаз «Л и «5, UT US - напр жени  на вторичных обмотках 5, 6 и 7, 8 трансформаторов 3 и 4, равных фазным папр жени м и А и UB). Напр жени  на вторичных обмотках 6 и 8, соединенных последовательно и согласно между собой, суммируютс  и результирующее напр жение (см. фиг. 2) подаетс  на первичную обмотку 11 инвертирующего трансформатора 12. Это напр жение сдвинуто на угол 60 эл. град, по отнощению к напр жению фазы «б и на угол 60 эл. град, по отпощепию к напр жению фазы «Л.FIG. 2 depicts diagrams of output voltages of converters 1 and 2 - IL - and t / g (UA, t / B - voltage of phases "L and" 5, UT US - voltage on secondary windings 5, 6 and 7, 8 transformers 3 and 4, equal phase phase and m and A and UB). The voltages on the secondary windings 6 and 8, connected in series and according to each other, are summed up and the resulting voltage (see Fig. 2) is fed to the primary winding 11 of the inverting transformer 12. This voltage is shifted by an angle of 60 el. hail, with respect to the voltage of the phase "b" and at an angle of 60 el. hail, according to the pressure to phase voltage “L.

Трансформатор 12 осуществл ет инвертирование результирующего напр жени  (t/A+ -f-t/ t/e+ s) на 180 эл. град. При этом напр жение на вторичной обмотке 13 трансформатора 12 представл ет напр жение фазы «С, так как оно сдвинуто на 120 эл. град, относительно напр жени  фазы «S, на 240 эл. град, относительно напр жени  фазы «Л и по амплитуде равно фазному напр жению UA или UB в св зи с тем, что коэффициент трансформации трансформатора 12 равен единице.Transformer 12 inverts the resulting voltage (t / A + -f-t / t / e + s) by 180 el. hail. At the same time, the voltage on the secondary winding 13 of the transformer 12 represents the voltage of the phase "C", since it is shifted by 120 e. hail, relative to the voltage of the phase “S, at 240 e. grad, relative to the phase voltage L and in amplitude equal to the phase voltage UA or UB due to the fact that the transformer ratio of the transformer 12 is equal to one.

Линейные напр жени  UA-B, UB-C UC-A устройства дл  преобразовани  посто нногоUA-B, UB-C UC-A line voltage devices for DC conversion

напр жени  в переменное трехфазное имеет форму, показанную на фиг. 2.Voltage to AC Three Phase has the shape shown in FIG. 2

Таким образом, трехфазное напр жение можно получить с помощью двух однофазных преобразователей и инвертирующего трансформатора . Это позвол ет упростить схему как силовой части, котора  состоит из двух, а не из трех преобразователей, так н управл ющей части (упрощаетс  схема распределительного устройства, так как оно сдвигаетThus, the three-phase voltage can be obtained using two single-phase converters and an inverting transformer. This allows us to simplify the scheme of both the power section, which consists of two, rather than three converters, as well as a control part (the switchgear circuit is simplified, since it shifts

два, а не три напр жени ), а также повысить надежность всего устройства.two, not three voltages), and also increase the reliability of the entire device.

Предмет изобретени Subject invention

Устройство дл  преобразовани  посто нного напр жени  в переменное трехфазное, содержащее однофазные преобразователи с выходными трансформаторами, распределительный блок и задающий генератор, отличающеес  тем, что, с целью упрощени , выходные трансформаторы снабжены дополнительными вторичными обмотками, которые соединены согласно и последовательно между собой и подключены к первичной обмотке вспомогательного инвертирующего трансформатора, вторична  обмотка которого включена между одним из выходных зажимов и общей точкой дополпительных вторичных обмоток, концы которых подключены к двум другим выходным зажимам.A device for converting DC voltage to AC three-phase, containing single-phase converters with output transformers, a distribution unit and a master oscillator, characterized in that, for the sake of simplicity, the output transformers are provided with additional secondary windings that are connected according to and in series with each other and connected to the primary winding of the auxiliary inverting transformer, the secondary winding of which is connected between one of the output terminals and the common point dopolp -negative secondary windings, the ends of which are connected to the other two output terminals.

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120°120 °

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UASUas

Л Л JL ЛL l jl l

3C3C

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ITIT

U,U,

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ri ri

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и и oand and o

П ПA

--г- y

SU1638215A 1971-03-22 1971-03-22 A device for converting a constant voltage into a variable three-phase SU464917A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1638215A SU464917A1 (en) 1971-03-22 1971-03-22 A device for converting a constant voltage into a variable three-phase

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1638215A SU464917A1 (en) 1971-03-22 1971-03-22 A device for converting a constant voltage into a variable three-phase

Publications (1)

Publication Number Publication Date
SU464917A1 true SU464917A1 (en) 1975-03-25

Family

ID=20470034

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1638215A SU464917A1 (en) 1971-03-22 1971-03-22 A device for converting a constant voltage into a variable three-phase

Country Status (1)

Country Link
SU (1) SU464917A1 (en)

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