CN201780474U - Permanent magnet control mechanism intelligent controller based on dedicated chip - Google Patents

Abstract

A permanent magnet control mechanism intelligent controller based on a dedicated chip comprises a conditioning circuit; control commands are communicated with the conditioning circuit; the conditioning circuit is connected with a photoelectric isolation unit and a special control chip CPLD (complex programmable logic device); the special control chip CPLD is connected with an output photoelectric isolation; the output photoelectric isolation is connected with a power electronic control module and a running state display unit respectively; the power electronic control unit is connected with a power electronic driving module; an on-line programming port is connected with the special control chip CPLD; and a power supply module supplies power for a capacitor and a motherboard. The intelligent controller provided by the utility model adopts the CPLD as a digital logic control running chip, and adopts the chip to replace a circuit board, so that the intelligent control of the speed of a vacuum switch is realized through the permanent magnet control mechanism controller of the vacuum switch, and the integral service life of the vacuum switch is further prolonged.

Description

Permanent-magnet manipulating mechanism intelligent controller based on special chip

Technical field

The utility model relates to the permanent-magnet manipulating mechanism intelligent controller in the high-pressure vacuum switch field, particularly a kind of permanent-magnet manipulating mechanism intelligent controller based on special chip.

Background technology

In recent years, the permanent-magnet manipulating mechanism of vacuum switch is day by day by expert in the row, vacuum switch manufacturer and users approve, permanent-magnet manipulating mechanism is with simple structure, superior acting characteristic, be able to use in the vacuum switch industry long mechanical life, the electromagnetic mechanism that permanent-magnet manipulating mechanism is different from the past, more be different from pull operation mechanism, be its specialized designs high precision so have only, high-performance, intelligentized controller could be brought into play the advantage and the performance of permanent-magnet manipulating mechanism to greatest extent, the permanent-magnet manipulating mechanism controller of present most of vacuum switches generally uses CPU as control chip, and the separating brake that only has GENERAL TYPE, the closing operation function, the moving iron core movement velocity of permanent-magnet manipulating mechanism is fast, bump strength (the suction-combining force of permanent magnet) when moving iron core moves to terminal point is big, then cause the employed vacuum tube of vacuum switch significantly to shorten (only several ten thousand times) serviceable life, this and the long-life initial design theory of permanent-magnet manipulating mechanism vacuum switch are opposite, also very different with the requirement in vacuum switch life-span of industry market, cause the permanent-magnet manipulating mechanism vacuum switch can not satisfy long-time request for utilization on some special specialized equipments, as has a vacuum switch in the high-tension switch cabinet of automatic switching electric capacity, it is 200,000 times that railway requires the life-span with the vacuum switch in the electric locomotive, so that it is being subjected to limiting greatly aspect some marketing.

Summary of the invention

In order to overcome the defective of above-mentioned prior art, the purpose of this utility model is to provide a kind of permanent-magnet manipulating mechanism intelligent controller based on special chip, these special chip right and wrong CPU type, be the Hardware Description Language VHDL of Applied Digital logic chip CPLD and the chip of the dedicated logic circuit constructed, antijamming capability is strong, the control accuracy height has been realized the Based Intelligent Control of the permanent-magnet manipulating mechanism controller of vacuum switch to vacuum switch speed, thereby has prolonged the whole service life of vacuum switch.

In order to achieve the above object, the technical solution of the utility model is achieved in that

Permanent-magnet manipulating mechanism intelligent controller based on special chip; comprise modulate circuit 1; the divide-shut brake order; deciliter status signal; the order of remote control divide-shut brake; the output terminal of protection separating brake order and supply voltage monitoring all links to each other with the input end of modulate circuit 1; the output terminal of modulate circuit 1 links to each other with the input end of photoelectricity isolated location 2; the output terminal of photoelectricity isolated location 2 links to each other with the order I/O end of special integrated circuit CPLD 3; the execution I/O end of special integrated circuit CPLD 3 links to each other with the input end of output photoelectricity isolation 4; output photoelectricity isolate 4 output terminal respectively with power electronics control module 5; the input end of running status display unit 6 links to each other; the output terminal of power electronics control module 5 links to each other with the grid of power electronics driver module 7; online programming port 8 links to each other with the access hole of special integrated circuit CPLD 3; one voltage output end of power module 9 links to each other with capacitor 10; be connected in the drain electrode of power electronics driver module 7 again, the secondary power supply of power module 9 gives whole mainboard 11 for low tension.

Said special integrated circuit CPLD 3 is the Hardware Description Language VHDL of Applied Digital logic chip CPLD and the chip of the dedicated logic circuit constructed.

Existing controller generally adopts single-chip microcomputer as master chip, the single-chip microcomputer scheme mainly adopts software programming, though it is powerful, dirigibility is good, weak point is to exist to crash, run problems such as flight distance preface, the instruction address pointer that is CPU is being subjected under the external disturbance, instruction disengaging normal orbit takes place easily is absorbed in the uncertain illegal circulation operation, and as the controller of the permanent-magnet manipulating mechanism of vacuum switch, around the environment that it uses is in is the rugged surroundings of high-voltage electromagnetic field, the program pointer of the as easy as rolling off a log CPU of making of this environment runs and flies, fly for reducing to run, the generation of this class problem that crashes, the utility model adopts CPLD (Complex Programmable Logic Device) device to make the special chip of a Digital Logic control operation, characteristics of the present utility model are to realize whole electronic control functions with pure hardware mode, without any software control, use Hardware Description Language VHDL, a hardware circuit system is placed on the very little large scale integrated chip the inside of a slice, replace circuit board with chip, these characteristics are fit to the control of permanent magnet mechanism very much, are an elder generation and then reliable scheme.

Technical characterstic of the present utility model is based on the intelligent controller of CPLD, to have realized the speed intelligent control technology of the permanent-magnet manipulating mechanism controller of vacuum switch to vacuum switch, thereby prolonged the whole service life of vacuum switch.The life-span of switch can be brought up to more than 200,000 times from several ten thousand times.Experiment shows: scheme is reasonable, and design is correct, reliable operation, and its function life-span has reached the advanced level of international like product.

Description of drawings

Accompanying drawing is a structure principle chart of the present utility model.

Embodiment

Below in conjunction with accompanying drawing structural principle of the present utility model and principle of work are described in detail.

With reference to accompanying drawing; permanent-magnet manipulating mechanism intelligent controller based on special chip; comprise modulate circuit 1; the divide-shut brake order; deciliter status signal; the order of remote control divide-shut brake; the output terminal of protection separating brake order and supply voltage monitoring all links to each other with the input end of modulate circuit 1; the output terminal of modulate circuit 1 links to each other with the input end of photoelectricity isolated location 2; the output terminal of photoelectricity isolated location 2 links to each other with the order I/O end of special integrated circuit CPLD 3; the execution I/O end of special integrated circuit CPLD 3 links to each other with the input end of output photoelectricity isolation 4; output photoelectricity isolate 4 output terminal respectively with power electronics control module 5; the input end of running status display unit 6 links to each other; the output terminal of power electronics control module 5 links to each other with the grid of power electronics driver module 7; online programming port 8 links to each other with the access hole of special integrated circuit CPLD 3; be convenient to the program of writing direct; the 110v voltage output end of power module 9 links to each other with capacitor 10; be connected in the drain electrode of power electronics driver module 7 again, the source electrode of power electronics driver module 7 is serially connected with the switching winding of mechanism; the anode of closing coil.The secondary power supply of power module 9 gives whole mainboard 11 for low tension, be that 15V voltage is supplied with each control command and signaling module, isolate 4 for modulate circuit 1, photoelectricity isolated location 2, special integrated circuit CPLD 3 and output photoelectricity and provide 5V voltage, provide-10V voltage for power electronics control module 5 and running status display unit 6.Said special integrated circuit CPLD 3 is the Hardware Description Language VHDL of Applied Digital logic chip CPLD and the chip of the dedicated logic circuit constructed.

The utility model is in line with practicality and be applicable to multi-user's consideration, and design has two kinds of orders aspect control command, and one is the order of divide-shut brake on the spot with inner 15V, and another is with the 220V of outside or the remote control divide-shut brake order of 110V.Deciliter status signal is the signal that high-voltage switch gear feeds back to controller, and when control command was come, controller was to carry out separating brake or close a floodgate in conjunction with the current state of switch.In extraneous context of detection, the electric system regulation is behind grid power blackout, switch is wanted separating brake, and whether detect power supply when switch is in "on" position has electricity, if there is electric switch to keep ortho states, if do not have electric switch then separating brake, so just accomplish grid power blackout after, the function that switch just can automatic brake separating.

Principle of work of the present utility model is: divide-shut brake order or the order of remote control divide-shut brake are through modulate circuit 1 and photoelectricity isolated location 2, deliver to special integrated circuit CPLD 3, the while high-voltage switch gear will divide or close status signal and give modulate circuit 1 through photoelectricity isolated location 2, deliver to special integrated circuit CPLD 3, isolate 4 through corresponding output I/O through photoelectricity and deliver to running status display unit 6, the current state of display switch, when special integrated circuit CPLD 3 receives this normal operation signal, start the pwm pulse modulation generator by timer, pwm control signal after the modulation is isolated 4 by photoelectricity give power electronics control module 5, the conducting of driving electric electric drive module 7 with by, because the source electrode of power electronics driver module 7 is serially connected with the switching winding of mechanism, the anode of closing coil, promptly controlling the switching winding of permanent-magnet manipulating mechanism and the electric current in the closing coil has or does not have, because the branch of permanent magnet mechanism, closing coil has the moving iron core of electric current then to move, the moving iron core of no current then stops, just utilize the excellent performance of Digital Logic CPLD dedicated hardware chip, adopt Hardware Description Language VHDL to set up the travelling speed that the pwm pulse modulator limits the moving iron core of permanent magnet mechanism, thereby reduce mechanical impact force minimum, and then prolong the mechanical life and the electrical endurance of vacuum circuit breaker corrugated tube in the vacuum interrupter.

If generation line fault; then the order of protection separating brake is sent in the protective device action; 3 of special integrated circuit CPLD do not start the pwm pulse modulation generator; the moving iron core of permanent-magnet manipulating mechanism is moved at full speed; the moving contact and the static contact of the vacuum tube of vacuum switch are separated fast, to guarantee the opening velocity of switch.Consider a switch normal occlusion, divide the number of times of operation far more than protection separating brake number of times; so the operation of normal occlusion, separating brake has just determined the life-span of vacuum switch; as long as in the life-span of the vacuum switch when having solved normal occlusion, sub-switching operation, protect separating brake can ignore so to the life-span influence of switch.

Technical scheme to sum up, the utility model control permanent magnet mechanism travelling speed slows down, and prolongs the serviceable life of vacuum switch integral body, the normal combined floodgate of against vacuum switch, sub-switching operation, switch performance can not be affected, and technical parameters such as electrical specification can satisfy service requirement fully.And concerning emergency protection, then permanent magnet mechanism no longer adds the PWM modulation in operational process, and vacuum switch is moved at full speed, obtains carrying out with the shortest time to guarantee guarded command.But, because emergency protection is moved in the normal use of vacuum switch, the number of times of action belongs to rare occasion, so can not impacted the serviceable life of switch.Be relevant the serviceable life of vacuum switch with the number of times of at ordinary times normal combined floodgate, sub-switching operation.

Claims (2)

1. based on the permanent-magnet manipulating mechanism intelligent controller of special chip; comprise modulate circuit (1); it is characterized in that; the divide-shut brake order; deciliter status signal; the order of remote control divide-shut brake; the output terminal of protection separating brake order and supply voltage monitoring all links to each other with the input end of modulate circuit (1); the output terminal of modulate circuit (1) links to each other with the input end of photoelectricity isolated location (2); the output terminal of photoelectricity isolated location (2) links to each other with the order I/O end of special integrated circuit CPLD (3); the execution I/O end of special integrated circuit CPLD (3) links to each other with the input end that output photoelectricity is isolated (4); the output terminal that output photoelectricity is isolated (4) respectively with power electronics control module (5); the input end of running status display unit (6) links to each other; the output terminal of power electronics control module (5) links to each other with the grid of power electronics driver module (7); online programming port (8) links to each other with the access hole of special integrated circuit CPLD (3); one voltage output end of power module (9) links to each other with capacitor (10); be connected in the drain electrode of power electronics driver module (7) again, the secondary power supply of power module (9) supplies low tension for (11) for whole mainboard.

2. according to the said permanent-magnet manipulating mechanism intelligent controller of claim 1 based on special chip, it is characterized in that said special integrated circuit CPLD (3) is the Hardware Description Language VHDL of Applied Digital logic chip CPLD and the chip of the dedicated logic circuit constructed.

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