SU942223A1

SU942223A1 - Ac voltage-to-dc voltage converter for power supply of several loads

Info

Publication number: SU942223A1
Application number: SU782686259A
Authority: SU
Inventors: Вил Аврамович Городецкий; Юрий Петрович Дергилев; Владимир Михайлович Шихин
Original assignee: Производственное объединение "Уралэнергоцветмет"
Priority date: 1978-10-03
Filing date: 1978-10-03
Publication date: 1982-07-07

Description

1one

Изобретение относитс к области преобразовани энергии переменного тока и предназначено дл питани установок водс одного Восстановлени полупроводни:ковых материалов.The invention relates to the field of AC power conversion and is intended for powering single-phase installations. Restoration of semiconductor materials.

Известны преобразователи переменного тока в посто нный выпопненные на базе тиристорных регул торов fl и 2.AC to DC converters are known based on the thyristor controls fl and 2.

Известные преобразователи сложны, так как содержит большое количество KOM-JQ мутационной-, и полупроводниковой аппаратуры .Known converters are complex, as it contains a large number of KOM-JQ mutation and semiconductor equipment.

Известны преобразователи переменного напр жени в посто нное дл питани нескольких нагрузок, содержащие трех- ts фазный трансформатор, вторичные обмотки которого соединены в звезду и подключены к выпр мителю, образованному анодным управл емым полумостом и катодными управл емыми полумостами, чис- 20 ло которых равно числу нагрузок, при этом выход анодного полумоста соединен с общей точкой первой нагрузки и св зан с общими точками остальных нагрузок.AC / DC converters for supplying several loads are known, containing a three-phase transformer, the secondary windings of which are connected in a star and connected to a rectifier formed by the anode controlled half-bridge and the cathodic controlled half-bridge, the number of which is equal to loads, while the output of the anode half-bridge is connected to the common point of the first load and is connected to the common points of the other loads.

а выходы катодных полумостов соединены каждый с соответствующей нагрузкой, датчики тока, включенные в цепи катодных полумостов, датчики нагф жени , включенные на выходе катодных полумостов, блок управлени , выходы которого подключены к каждому полумосту, а входы к датчикам тока и нащз жени C JНедостатком известного щэеобразова- тел вл етс низкий коэффициесгт мощности .and the outputs of the cathode half-bridges are each connected to a corresponding load, current sensors included in the circuits of the cathode half-bridges, sensors of nagging switched on at the output of the cathode half-bridges, control unit whose outputs are connected to each half-bridge, and inputs to current sensors and bridge C C The disadvantage The formation of electricity is a low power factor.

Цель изобретени - повьш1ение коэффициента мощности преобразовател при питании трех групп стержней установок водородного восстановлени полупроводниковых материалов.The purpose of the invention is to increase the power factor of the converter when powering three groups of rods of hydrogen reduction installations for semiconductor materials.

Claims

1. US patent number 3832626, cl. cl. 323-4, 1974.

2. USSR author's certificate number 344534, cl. H 010 3/61, 197.2.

3. The patent of England N. 1028013, cl. H 02 M 7 / O2. 1962. 36 with a corresponding load, and the output of the cathode half-bridge is connected to the other end of the first load, current sensors included in the circuits of the anode co-bridges, voltage sensors connected to the outputs of the anode half-bridges, the control unit, the outputs of which are connected to each anode half-bridge, the inputs to the current sensors, the stall unit, the inputs of which are connected to the voltage sensors, o. This means that, in order to detect the power factor of the three loads of the hydrogen recovery plant of semi-wound materials, it is equipped with three switching elements, whose earplugs are connected to the control unit, and the normally open contacts of the first switching element are connected between the output of the cathode half-bridge and the common one. point of the second and third loads, nsalno open contacts of the switching element are included between the output of the cathode half-bridge and the zero point of the secondary circuit approx transfsrmatora normally-open contacts and retego kommut1fuyuschego element included metkdu outputs of the first and second half-bridges anodnk. Information sources,