SU817675A1

SU817675A1 - Ac voltage stabilizer

Info

Publication number: SU817675A1
Application number: SU792722732A
Authority: SU
Inventors: Юрий Евгеньевич Синегубко
Original assignee: Предприятие П/Я Г-4421
Priority date: 1979-02-08
Filing date: 1979-02-08
Publication date: 1981-03-30

Description

(54) СТАБИЛИЗАТОР ПЕРЕМЕННОГО НАПРЯЖЕНИЯ(54) AC VOLTAGE STABILIZER

1 , . .one , . .

Изобретение относитс к электротехнике в частности к тиристорным стабилизатора переменного напр жени с пр мой св зью.The invention relates to electrical engineering, in particular, to a thyristor direct voltage regulator with direct connection.

Известны стабилизаторы переменного напр жени fl3 и 2J.The variable voltage regulators fl3 and 2J are known.

Олин из известных стабилизаторов содержит тиристорный регул тор и устройство управлени Ll3Olin of known stabilizers contains thyristor controller and control unit Ll3

Недостатком этого стабилизатора вл етс низкое быстродействие.The disadvantage of this stabilizer is low speed.

наиболее близким техническим решением к предлагаемому изобретению вл етс стабилизатор, содержащий однофазный тиристорный регул тор, включенный между входным и выходным выводами, первый диодный мост, опорный стабилитрон, зар дный резистор , два конденсатора, параллельно каждому из которых подключена цепочка из последовательно соединенных переключающего диода и первичной обмотки общего импульсного трансформатора, вторичные обмотки которого соединены с управл ющими входами тиристорного регул тора L2J The closest technical solution to the present invention is a stabilizer comprising a single-phase thyristor regulator connected between the input and output pins, the first diode bridge, the reference zener diode, the charging resistor, two capacitors, each of which is connected to a chain of series-connected switching diode and primary windings of a common pulse transformer, the secondary windings of which are connected to the control inputs of the thyristor controller L2J

Недостатком известного устройств вл етс громоздкость устройства управлени тиристорным регул тором.A disadvantage of the known devices is the bulkiness of the thyristor controller control device.

из-за об зательного наличи в нем трансформатора сетевой частоты.due to the presence of a network frequency transformer in it.

Цель изобретени - уменьшение га , баритов стабилизатора.The purpose of the invention is to reduce ha, barite stabilizer.

Поставленна цель достигаетс тем, что в стабилизатор переменного напр жени , содержащий однофазный тиристорный регул тор, включенныйThe goal is achieved by the fact that the AC voltage regulator containing a single-phase thyristor controller, included

10 между входным и выходным выводами/ первый диодный мост, опорный стабилитрон , зар дный резистор, два конденсатора , параллельно кеакдому из .которых подключена цепочка из после 5 довательно соединенных переключающего диода и первичной обмотки общего импульсного.трансформатора, -вторичные Обмотки которого соединены с управл ющими входами тиристорного10 between the input and output pins / the first diode bridge, the reference zener diode, the charging resistor, two capacitors, parallel to the keakdoma from which a chain is connected from after the 5 consecutively connected switching diode and the primary winding of the common pulsed transformer, - the secondary windings of which are connected to thyristor inputs

20 iрегул тора, введен второй диодный мост, одни входы диодных мостов объединены и подключены к общей шине стабилизатора, другие входы соединены с одними выводами конденсаторов, другие выводы которых объединены и подключены к входному выводу , минусовой вывод первого моста соединен через опорный, стабилитрон с плюсовым выводом второго моста,20 regulators, a second diode bridge is inserted, one inputs of diode bridges are combined and connected to a common stabilizer bus, other inputs are connected to one capacitor pins, the other pins of which are combined and connected to an input terminal, the negative terminal of the first bridge is connected via a reference, zener diode to a positive one the output of the second bridge

Claims

30 a negative terminal through which the charging resistor is connected to the positive terminal of the first bridge. The drawing shows a voltage regulator, a schematic diagram of the stabilizer contains a thyristor controller 1, a first diode bridge on diodes 2-5, a second diode bridge on diodes 6-9, reference Zener diode 10, charging resistor 1-1, capacitors 12, 13, switching diodes 14, 15 and pulse transformer 16, input terminal 17, common bus 18. The stabilizer works as follows. When a positive voltage half-wave is applied to the input of the stabilizer (plus the input terminal), the capacitor 13 is charged along the input input circuit, the capacitor 13 — the diode 8 — the zener diode 10 — the diode 4 — the common bus stabilizer before the voltage equal to the difference between the amplitude value of the input voltage and reference voltage of the zener diode 10. To the switching diode 15 at this time applied voltage. In the second half of the positive half-wave and in the negative half-wave of the input voltage, capacitor 13 is recharged along the circuit, common busbar - diode 5 - resistor 11 - diode 9 - KOHj eHcaTOp 13 input terminal, before voltage of switching diode 15. After unlocking the diode 15, capacitor 13 discharged through it to the primary winding of a pulse transformer 16, obes. A short control pulse for the thyristor regulator 1 in the negative half-wave of the input voltage. In the regulator, at that moment, the thyristor is opened, to the anode of which a positive voltage is applied. In the positive half-wave | iy input voltage, the control pulse for the regulator 1 is provided from the capacitor 12, which is also precharged to the negative half-wave through the stabilizer 10, and then recharged through the resistor 11 until the voltage of the diode 14 is switched. Due to The pre-charge of the capacitors through the reference Zener diode provides a direct negative connection in the stabilizer. Thus, as the input voltage of the stabilizer increases, the capacitors 12, 13 are preliminarily. (each in the corresponding half-wave) is charged to a higher voltage, and therefore recharged before the switching voltage of the diodes 14, 15 is longer. The thyristors of controller 1 are switched on later, to the compensator at the output of the stabilizer, an increase in the input voltage. The stabilizer is tuned by changing the level of the breakdown of the Zener diode 10 and the resistance value of the resistor 11. The switching diodes 14, 15 can be replaced by other switching devices with similar characteristics. The proposed stabilizer does not contain transformers of the network frequency and therefore has smaller dimensions while maintaining high speed. Claims of the Invention: AC Voltage Stabilizer Containing Single Phase Thyristor. between the input and output pins, the first diode bridge, the reference zener diode, the charging resistor, two capacitors, in parallel with each of which is connected a chain of series-connected switching diode and the primary winding of the common pulse transformer, the secondary windings of which are interconnecting. dinenes with control inputs for a thyristor controller, characterized in that, in order to reduce overall dimensions, a second diode bridge is inserted into it; one inputs of diode bridges are combined and connected to a common stabilizer bus, other inputs are connected to one capacitor pins, the other pins are combined and connected to the input pins, the negative terminal of the first bridge is connected through the reference zener diode with the positive terminal of the second bridge, the negative terminal of which is through the charge The resistor is connected to the positive terminal of the first bridge. Sources of information taken into account in the examination 1. Thyristors. Technical reference. M., Energie, 1971, p. 237, fig. 9-30.

2. Authors certificate USSR 635468, cl. G 05 F 1/44, 07.13.77