CN206164203U - A intelligence control system for high -voltage conversion switch - Google Patents

Abstract

The utility model relates to an intelligence control system for high -voltage conversion switch, be equipped with the thyristor of realizing a plurality of series connection that power line switched on, switched and turn -offed in the high -voltage conversion switch, the gate pole of each thyristor is controlled by a controlling means to reach the host computer that produces thyristor control signal that is suitable for that links to each other with this controlling means, controlling means includes: a plurality of thyristor drive module, IO expander circuit, processor module, carrier wave demodulation module, wherein the carrier wave demodulation module is used for the demodulation to come from the control signal of power line, and sends the thyristor control signal after the demodulation to processor module, just processor module passes through IO expander circuit and controls the switch -on of corresponding thyristor drive module drive thyristor respectively.

Description

For the intelligence control system of high pressure change-over switch

Technical field

The utility model belongs to high-tension apparatus Condition Monitoring Technology field, more particularly to a kind of for high pressure change-over switch Intelligence control system.

Background technology

Electric and electronic technical field has formed in the world suitable scale.Compared with other industrial classes, although it The time that science and technology field occurs is also very short, but it plays huge effect in current industrial automation, is letter Important interface between breath industry and conventional industries, is the bridge contacted between forceful electric power and light current.Its development, is electromechanical Change opens new road, is significantly to save electric energy, reduces raw materials consumption, there is provided new important means.

With the parameter of the development of Power Electronic Technique, especially power semiconductor device, the raising of performance, power electronics The application of technology flourishes, and various power electronic equipments are widely used in various fields, Electric control, Aero-Space, the energy, Traffic, electrochemistry, electrical heating, high-performance power supply, household electrical appliances and other manufacturing industry etc..Electric control is also Power Electronic Technique application A key areas, wherein by the use of power electronic devices as power switch, realizing that turning on and off for power circuit is electricity The basic function of power control, its benefit for projecting is that power electronic devices turn-on and turn-off will not produce electric arc, will not produce and make an uproar Sound, as the electronic power switch in alternating current circuit, with reference to modern control technology can also realize it is soft open, soft switching, autodiagnosis Disconnected and other Functions are significantly acted on, and its advantage is that conventional electric power switch cannot possess.

Electronic power switch is based on semiconductor conductive mechanism, contactless, without electric arc, mechanical action, therefore will not be organic Tool fatigue and noise are produced, and are conducive to improving working life and are reduced noise pollution.Due to can with it is soft open, soft switching, can be with Power circuit and electrical equipment is set to exempt from inrush current shock, to protecting power circuit and power equipment quite meaningful.

Utility model content

The purpose of this utility model is to provide a kind of intelligence control system for high pressure change-over switch, is carried by power line The mode of ripple realizes the remotely control to high pressure change-over switch.

In order to solve above-mentioned technical problem, the utility model provides a kind of Based Intelligent Control system for high pressure change-over switch System, is provided with the IGCT for realizing power circuit conducting, switching and some series connection for turning off, each brilliant lock in the high pressure change-over switch The gate pole of pipe is controlled by a control device, and be connected with the control device be suitable to produce thyristor control signal it is upper Machine；The control device includes：Several thyristor driver modules, I/O expansion circuit, processor module, carrier wave demodulation module, Wherein described carrier wave demodulation module is used for control signal of the demodulation from power line, and the thyristor control signal after demodulation is sent out Processor module is delivered to, and the processor module controls respectively respective thyristor drive module and drives crystalline substance by I/O expansion circuit Brake tube is connected.

The beneficial effects of the utility model are that the intelligence control system for high pressure change-over switch of the present utility model passes through The mode of power line carrier realizes the remotely control to high pressure change-over switch, without the need for arrangement network in addition, to reduce communicating into This.

Description of the drawings

The utility model is further illustrated with reference to the accompanying drawings and examples.

Fig. 1 is the theory diagram of the intelligence control system for high pressure change-over switch of the present utility model；

Fig. 2 is the theory diagram of host computer of the present utility model.

Specific embodiment

The utility model is described in further detail presently in connection with accompanying drawing.These accompanying drawings are simplified schematic diagram, Basic structure of the present utility model is only illustrated in a schematic way, therefore it only shows the composition relevant with the utility model.

As depicted in figs. 1 and 2, a kind of intelligence control system for high pressure change-over switch of the present utility model, the height The IGCT for realizing power circuit conducting, switching and some series connection for turning off is provided with pressure change-over switch, concrete high pressure conversion is opened Close the intelligent solid conversion switch such as but not limited to disclosed in patent document CN 203537360U；The gate pole of each IGCT By control device control, and the host computer for being suitable to generation thyristor control signal being connected with the control device；It is described Control device includes：Several thyristor driver modules, I/O expansion circuit, processor module, carrier wave demodulation module, wherein described Carrier wave demodulation module is used for control signal of the demodulation from power line, and the thyristor control signal after demodulation is sent to process Device module, and the processor module by I/O expansion circuit control respectively respective thyristor drive module drive IGCT connect It is logical.

Wherein, carrier wave demodulation module includes：Termination power, filtering amplitude limiter circuit and the carrier modulation solution aligning being sequentially connected Piece.

The processor module such as but not limited to adopts single-chip microcomputer, the I/O expansion circuit to adopt decoder structure Build, for example 38 decoders, inexpensive IO is expanded by I/O expansion circuit realiration, i.e., multiple-channel output is capable of achieving using single-chip microcomputer Control, and then realize many thyristor controls.

The intelligence control system also includes：Host computer, the host computer includes：Main control module, is connected with the main control module Key-press module, display module and carrier modulation block, the main control module believed thyristor control by carrier modulation block Number it is coupled on power line, to be sent to control device by power line.

The carrier modulation block includes：Carrier modulation demodulation chip, filtering amplitude limiter circuit and the coupling being sequentially connected Circuit.

Carrier modulation demodulation chip in the carrier modulation block and carrier wave demodulation module is used to carry out detection signal Modulation is demodulated, and is filtered amplitude limiter circuit and is eliminated the disturbing pulse that the cycle occurs on power line, and termination power believes thyristor control Number it is coupled on power line or obtains from power line thyristor control signal.

The main control module such as but not limited to adopts flush bonding processor, the thyristor driver module to be adapted to provide for foot Enough voltage and currents are driving turn on thyristors.

With it is above-mentioned according to desirable embodiment of the present utility model as enlightenment, by above-mentioned description, related work people Member can carry out various change and modification in the range of without departing from this utility model technological thought completely.This reality The content being not limited to new technical scope on specification, it is necessary to its technology is determined according to right Property scope.

Claims (1)

1. a kind of intelligence control system for high pressure change-over switch, is provided with the high pressure change-over switch and realizes that power circuit is led Logical, switching and the IGCT of some series connection for turning off；Characterized in that, the gate pole of each IGCT is controlled by a control device, And the host computer for being suitable to generation thyristor control signal being connected with the control device；

The control device includes：Several thyristor driver modules, I/O expansion circuit, processor module, carrier wave demodulation module, Wherein

The carrier wave demodulation module is used for control signal of the demodulation from power line, and the thyristor control signal after demodulation is sent out Processor module is delivered to, and the processor module controls respectively respective thyristor drive module and drives crystalline substance by I/O expansion circuit Brake tube is connected；

The intelligence control system also includes：Host computer, the host computer includes：Main control module, with pressing that the main control module is connected Key module, display module and carrier modulation block, the main control module passes through carrier modulation block by thyristor control signal coupling Close on power line, to be sent to control device by power line；

The carrier wave demodulation module includes：Termination power, filtering amplitude limiter circuit and the carrier modulation demodulation chip being sequentially connected.