SU982159A1

SU982159A1 - Programme contact device for control of thyristors

Info

Publication number: SU982159A1
Application number: SU813243046A
Authority: SU
Inventors: Борис Николаевич Гайдуков; Иван Федорович Первушкин; Станислав Павлович Степаненко
Original assignee: Украинский Государственный Проектно-Технологический И Экспериментальный Институт "Укроргстанкинпром"
Priority date: 1981-02-03
Filing date: 1981-02-03
Publication date: 1982-12-15

Description

(54) ПРОГРАММНОЕ БЕСКОНТАКТНОЕ УСТЮЙСТВО ТИРИСТОРАМИ , ДЛЯ УПРАВЛЕНИЯ(54) SOFTWARE NONCONTACT SOFTWARE FOR THIRRISTS, FOR MANAGEMENT

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Изобретение относитс к устройствам программного управлени устройствами и процессами и может быть использовано дл управлени тиристорами и другими коммутационными элементами.The invention relates to software devices for controlling devices and processes and can be used to control thyristors and other switching elements.

Известны устройства дл одновременного включени нескольких тиристоров, содержащие импульсный трансформатор, вторичные обмотки которого св заны через выпр мители и чейки управлени с управл ющими переходами соответствующих тиристоров, при этом кажда чейка управлени состоит из двух RC-цепей, дроссел , диодов и динистора II.Devices are known for simultaneously switching on several thyristors, comprising a pulse transformer, the secondary windings of which are connected via rectifiers and control cells to control transitions of the corresponding thyristors, each control cell consisting of two RC circuits, chokes, diodes and dinistor II.

Недостатком данных устройств вл етс невозможность программного управлени тиристорами.The disadvantage of these devices is the inability to programmatically control thyristors.

Наиболее близким техническим решением к изобретению по средствам и достигаемому результату вл етс устрюйство дл управлени параллельно соединенными тиристорами, содержащее конденсаторы, динисторы и резисторы по количеству тиристоров, клеммы дл подключени источника питани и параллельноThe closest technical solution to the invention in terms of means and results achieved is a device for controlling parallel-connected thyristors, containing capacitors, dynistors and resistors by the number of thyristors, terminals for connecting the power supply and in parallel

соединенных тиристоров с нагрузками, при этом анод каждого динистора подключен через соответствующий конденсатор к клемме дл подключени минусового вывода источника питани 2.connected thyristors with loads; the anode of each dynistor is connected through a corresponding capacitor to a terminal for connecting the negative terminal of the power source 2.

Недостатком известного устройства вл етс невозможность последовательного включени тиристоров с заданным временным интервалом .A disadvantage of the known device is the impossibility of sequentially switching on the thyristors with a predetermined time interval.

Цель изобретени - обеспечение последовательного включени тиристоров с заданным временным интервалом.The purpose of the invention is to provide a consistent connection of thyristors with a predetermined time interval.

Claims

The goal is achieved by the fact that the known device is equipped with an additional resistor, the first output of which is connected to the terminal for connecting the positive power supply voltage, and the second output of the additional resistor is connected to the anode of the first of the series-connected dynistors, the cathode of each of which is connected a terminal for connecting the control electrode of the corresponding thyristor. 3 The drawing is a schematic diagram of a three-stage programmable contactless relay. A contactless relay for controlling parallel-connected thyristors 1-3 with loads 4-6 contains main resistors 7–9, dynistors 10–12, capacitors 13–15, and an additional resistor 16. The software contactless relay operates as follows When voltage is applied to the relay, it starts to charge press through the resistor 16 and the capacitor 13. As soon as the voltage across it reaches the voltage value of the breakdown of the distor 10, the last 10 breaks through, and a current flows through the resistor 7 and the control electrode of the thyristor 1, unlocking the thyristor 1. The capacitor 14 receives a portion of the charge from the capacitor 13 and starts discharging through the resistor 16 and the open dynistor 10 to the voltage of the dynistor 11. The processes in the relay proceed as described above until the last thyristor 3 is opened. The time interval from switching on the relay until the first thyristor trips Also, between individual thyristor triggers, the parameters of the timing elements (resistor and capacitor) are determined. The use of the invention provides for the sequential connection of thyristors with predetermined time intervals, with individual and general adjustments. Software Contactless thyristor control device containing capacitors, dynistors and resistors according to the number of included thyristors, terminals for connecting the power source and parallel connected thyristors with loads, while the anode of each dynistor is connected via a suitable capacitor to the terminal for connecting the negative terminal of the source, power characterized in that, with the aim of ensuring the sequential switching on of the thyristors, with a prescribed time interval, it is provided with tional resistor, a first terminal of which is connected to a terminal for connecting the positive terminal of the power source, and a second terminal - to the anode of the first of the serially connected dinnsgorov, the cathode of each of which is connected via a resistor to the corresponding main terminal for coupling the control electrode of the corresponding thyristor. Sources of information taken into account during the examination 1. USSR author's certificate No. 562227, cl. H 02 M 1/08, 1974.

2. USSR author's certificate number 702468, cl. H 02 M 1/08, 1977.

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