CN102624087B - Outdoor permanent magnetic intelligent vacuum breaker - Google Patents
Outdoor permanent magnetic intelligent vacuum breaker Download PDFInfo
- Publication number
- CN102624087B CN102624087B CN201210057313.1A CN201210057313A CN102624087B CN 102624087 B CN102624087 B CN 102624087B CN 201210057313 A CN201210057313 A CN 201210057313A CN 102624087 B CN102624087 B CN 102624087B
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- circuit
- chip microcomputer
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- permanent magnetic
- outdoor
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- 238000004891 communication Methods 0.000 claims abstract description 20
- 238000002955 isolation Methods 0.000 claims abstract description 12
- 238000001514 detection method Methods 0.000 claims description 10
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 230000003287 optical effect Effects 0.000 claims description 8
- 238000012360 testing method Methods 0.000 claims description 6
- 239000003990 capacitor Substances 0.000 claims description 5
- 230000007257 malfunction Effects 0.000 claims description 4
- 238000007689 inspection Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 238000001914 filtration Methods 0.000 abstract 1
- 239000004973 liquid crystal related substance Substances 0.000 abstract 1
- 230000006870 function Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Landscapes
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention relates to an outdoor permanent magnetic intelligent vacuum breaker. A zero sequence current transformer, a phase current transformer, a line voltage transformer, a filtering circuit, a power supply management circuit, a charging unit, a capacitive circuit, a photoelectric isolation circuit, a photocoupling isolation circuit, a storage unit, a watchdog circuit, a system unit circuit, a clock circuit, transistor-transistor logic (TTL) communication, a fault state alarm, a data line of an input keyboard, a liquid crystal display (LCD) and a light-emitting diode (LED) display are respectively connected onto a single-chip microcomputer. General packet radio service (GPRS) communication is connected with the TTL communication. The capacitive circuit and the photocoupling isolation circuit are connected with a driving and counter emf absorbing unit and a circuit of a permanent magnetic driver. A permanent magnetic driving circuit is provided with an in-place detecting circuit and an in-place indicator. A communication circuit is connected with the photocoupling isolation circuit, and a remote controller circuit below a column is further connected with the photocoupling isolation circuit. The outdoor permanent magnetic intelligent vacuum breaker has the advantages of being simple to operate and safe and reliable and is suitable for being used for outdoor vacuum breaker remote control operation.
Description
Technical field
The present invention is to provide the control device of field of power transmission, specifically a kind of outdoor permanent magnetic intelligent vacuum circuit breaker.
background technology
The effect of circuit breaker in electric power system is control and protection system safe and stable operation, and vacuum circuit-breaker, as the main product of Medium voltage switch or circuit breaker, has far-reaching influence to stable power system.
But existing vacuum circuit-breaker is normally controlled by wire circuit, therefore easily there is controlling malfunctioning drawback, also increase the triviality of operation simultaneously, therefore easily there is misoperation, and the generation of the continuous phenomenon that causes opening circuit.
summary of the invention
The shortcoming existing in order to overcome existing vacuum circuit-breaker, the invention provides a kind of outdoor intelligent vacuum circuit breaker.This circuit breaker combines by combinational circuit and remote control, reaches the work of manipulation outdoor vacuum circuit breaker, thereby solves the technical problem of vacuum circuit-breaker Intelligent control.
The scheme that technical solution problem of the present invention adopts is:
Power supply accesses respectively zero sequence current mutual inductor, phase current mutual inductor and line voltage transformer, and joins via modulate circuit and single-chip microcomputer by filter circuit; Electric power management circuit joins by photoelectric isolating circuit and single-chip microcomputer again through charhing unit and condenser network; Condenser network joins with driving and back-emf absorptive unit again, photoelectric isolating circuit and driving and back-emf absorptive unit interconnect simultaneously, driving and back-emf absorptive unit are connected with the circuit of permanent magnet drive, are provided with the circuit of the testing circuit that puts in place and the indicating device that puts in place on permanent magnetic drive circuit; Communicating circuit and optical coupling isolation circuit join, and under post, remote control circuitry is joined with optical coupling isolation circuit again, and optical coupling isolation circuit is linked in single-chip microcomputer; Memory cell and single-chip microcomputer interconnect; Watchdog circuit is connected with single-chip microcomputer respectively with system unit circuit; Clock circuit and single-chip microcomputer interconnect; GPRS communication is connected with TTL communication network, and wherein, TTL communication interconnects with single-chip microcomputer again, and mail message; On single-chip microcomputer, be connected with malfunction alarm; The data wire of input keyboard is connected with single-chip microcomputer; On single-chip microcomputer, be connected with LCD display and light-emitting diode display.
Good effect, outdoor intelligent vacuum circuit breaker of the present invention is arranged on transmission line, can be by remote controller under manipulation post, Drive and Control Circuit is moved to permanent magnet drive, realizes opening and shutting off vacuum circuit-breaker.Have simple to operate, safe and reliablely, save operation link, be difficult for producing the feature of misoperation.Suitable to using in outdoor vacuum circuit breaker straighforward operation.
Brief description of the drawings
Fig. 1 is circuit block constitutional diagram of the present invention
In figure, 1. remote controller under post, 2. optical coupling isolator, 3. communication power supply, 4. memory cell, 5. watchdog circuit, 6. system unit, 7. clock circuit, 8.GPRS communication, 9.TTL communication, 10. single-chip microcomputer, 11. malfunction alarms, 12. indicating devices that put in place, 13. testing circuits that put in place, 14. photoelectric isolating circuits, 15. modulate circuits, 16.LED display, 17.LCD display, 18. input keyboards, 19. filter circuits, 20. zero sequence current mutual inductors, 21. phase current mutual inductors, 22. line voltage transformers, 23. electric power management circuits, 24. charhing units, 25. condenser networks, 26. drive and back-emf absorptive unit circuit, 27. permanent magnet drives.
Embodiment
According to the figure, power supply accesses respectively zero sequence current mutual inductor 20, phase current mutual inductor 21 and line voltage transformer 22, and joins via modulate circuit 15 and single-chip microcomputer 10 by filter circuit 19; Electric power management circuit 23 joins by photoelectric isolating circuit 14 and single-chip microcomputer again through charhing unit 24 and condenser network 25; Condenser network joins with driving and back-emf absorptive unit 26 again, photoelectric isolating circuit and driving and back-emf absorptive unit interconnect simultaneously, driving and back-emf absorptive unit are connected with the circuit of permanent magnet drive 27, are provided with put in place testing circuit 13 and the indicating device 12 that puts in place on permanent magnetic drive circuit; Communicating circuit 3 joins with optical coupling isolation circuit 2, and under post, remote controller 1 circuit joins with optical coupling isolation circuit again, and optical coupling isolation circuit is linked in single-chip microcomputer; Memory cell 4 interconnects with single-chip microcomputer; Watchdog circuit 5 is connected with single-chip microcomputer respectively with system unit circuit 6; Clock circuit 7 interconnects with single-chip microcomputer; GPRS communication 8 is connected with TTL communication 9 networks, and wherein, TTL communication interconnects with single-chip microcomputer again, and mail message; On single-chip microcomputer, be connected with malfunction alarm 11; The data wire of input keyboard 18 is connected with single-chip microcomputer; On single-chip microcomputer, be connected with LCD display 17 and light-emitting diode display 16.
The course of work of the present invention is:
After system starts, operation initialize routine, comprises the initialization of LCD, DS1302, GPRS-DTU, EEPROM etc.After initialize routine finishes, system is carried out startup self-detection, checks the integrity of the each parts of circuit breaker, comprises the inspection to potential circuit instrument transformer, electrolytic capacitor, battery, power management module, communication module etc., and carry out LCD and LED demonstration, if there is fault can send the warning of different durations.If startup self-detection is normal, reads EEPROM numerical value, and write in the RAM of corresponding address.After initial value has read, carrying out switching value and analog quantity detects, switching value comprises: the detection of circuit breaker opening and closing in place situation, capacitor charging situation, local long-range switching etc., analog quantity detects and comprises: the detection of three-phase current, a phase voltage, zero-sequence current etc.After numerical value detects, judge whether to interrupt entering, interrupted comprising: under TTL communicating interrupt, button interruption and post, remote control has been interrupted.Interrupt entering if having, the priority that first judgement is interrupted, returns to main program after then once carrying out interruption subroutine.The variable that defence program is carried out judgement is included in the parameter detection of main program; if the parameter detecting and predefined parameter value are inconsistent; be determined further; if judgement has fault to occur; carry out immediately error protection subprogram, and fault parameter is kept in EEPROM and sends to host computer.After pending fault is got rid of, carry out automatic reclosing or manually repair, system enters normal operating condition.
The present invention is applied on the transmission line of electric company, colliery, Utilities Electric Co., factory, institution of higher learning, group company.
Embodiment
Single-chip microcomputer adopts ATMEGA128 single-chip microcomputer.
Capacitor charging circuit adopts ATMEGA16 single-chip microcomputer.
Testing circuit comprises a road voltage, three road phase current and zero-sequence currents.
Filter circuit adopts chip LM224.
Communicating circuit GPRS communicating circuit adopts EM310; Under post, remote control circuit adopts SC2272 decoding, SC2262 decoding chip.
Microcontroller DC-DC modular power source and 7909 compositions for the power acquisition of control system, wherein 7909 when turn-offing IGBT provider to voltage.
Permanent magnet coil drive adopts FGL160N60UFD.The indicating device that puts in place adopts LED luminous element.
It is the red highlighted LED of white hair of 5 millimeters that input disc adopts single tactile keyboard, LCD to adopt 12864, LED to adopt diameter, and memory cell adopts AT24C512 iron memory chip.
Adopt as above parts and the circuit element of model, constitute the drive circuit of vacuum circuit-breaker, for driving the folding of vacuum circuit-breaker contact.
Intelligent circuit breaker of the present invention is furnished with isolating switch; realize interlocking; operating mechanism is selected novel monostable double coil permanent magnet control mechanism; arc control device are selected vacuum extinction; there is remote control under post, detection, control, protection, communication function simultaneously; adopt modular design concept, there is complete circuit breaker failure defencive function simultaneously, and realize PC remote monitoring by GPRS.
Through laboratory, test shows, magneto intelligent vacuum circuit breaker of the present invention is stable, perfect in shape and function, can be widely used in urban distribution network as disjunction or for rural power grids distribution system outdoor substation as outlet switch, can effectively divide, close load current and short circuit current.The measuring and protecting control that internal system configures and communication function can fully meet electrical power distribution automatization system requirement.
Claims (1)
1. an outdoor permanent magnetic intelligent vacuum circuit breaker, is characterized in that:
The electric circuit constitute:
Power supply accesses respectively zero sequence current mutual inductor (20), phase current mutual inductor (21) and line voltage transformer (22), and joins via modulate circuit (15) and single-chip microcomputer (10) by filter circuit (19);
Electric power management circuit (23) joins by photoelectric isolating circuit (14) and single-chip microcomputer again through charhing unit (24) and condenser network (25);
Condenser network joins with driving and back-emf absorptive unit (26) again, photoelectric isolating circuit and driving and back-emf absorptive unit interconnect simultaneously, driving and back-emf absorptive unit are connected with the circuit of permanent magnet drive (27), are provided with the testing circuit that puts in place (13) and the indicating device that puts in place (12) on the circuit of permanent magnet drive;
Under communicating circuit (3), post, remote control circuitry (1) is linked in single-chip microcomputer via optical coupling isolation circuit (2);
Memory cell (4) interconnects with single-chip microcomputer; Watchdog circuit (5) is connected with single-chip microcomputer respectively with system unit circuit (6);
Clock circuit (7) interconnects with single-chip microcomputer;
GPRS communication (8) is connected with TTL communication (9) network, and wherein, TTL communication interconnects with single-chip microcomputer again, and mail message;
On single-chip microcomputer, be connected with malfunction alarm (11);
The data wire of input keyboard (18) is connected with single-chip microcomputer;
On single-chip microcomputer, be connected with LCD display (17) and light-emitting diode display (16);
Method of operation:
After system starts, operation initialize routine, comprises the initialization of LCD, DS1302, GPRS-DTU, EEPROM; After initialize routine finishes, system is carried out startup self-detection, checks the integrity of the each parts of circuit breaker, comprises the inspection to potential circuit instrument transformer, electrolytic capacitor, battery, power management module, communication module, and carry out LCD and LED demonstration, if there is fault can send the warning of different durations; If startup self-detection is normal, reads EEPROM numerical value, and write in the RAM of corresponding address; After initial value has read, the numerical value that carries out switching value and analog quantity detects, switching value comprises: the detection of circuit breaker opening and closing in place situation, capacitor charging situation, local long-range switching, and analog quantity detects and comprises: the detection of three-phase current, a phase voltage, zero-sequence current; After numerical value detects, judge whether to interrupt entering, interrupted comprising: under TTL communicating interrupt, button interruption and post, remote control has been interrupted; Interrupt entering if having, the priority that first judgement is interrupted, returns to main program after then once carrying out interruption subroutine; Main program parameter comprises defence program and carries out the variable judging in detecting, if the parameter detecting and predefined parameter value are inconsistent, be determined further, if judgement has fault to occur, carry out immediately error protection subprogram, and fault parameter is kept in EEPROM and sends to host computer; After pending fault is got rid of, carry out automatic reclosing or manually repair, system enters normal operating condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210057313.1A CN102624087B (en) | 2012-03-07 | 2012-03-07 | Outdoor permanent magnetic intelligent vacuum breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210057313.1A CN102624087B (en) | 2012-03-07 | 2012-03-07 | Outdoor permanent magnetic intelligent vacuum breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102624087A CN102624087A (en) | 2012-08-01 |
| CN102624087B true CN102624087B (en) | 2014-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210057313.1A Active CN102624087B (en) | 2012-03-07 | 2012-03-07 | Outdoor permanent magnetic intelligent vacuum breaker |
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| Country | Link |
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| CN (1) | CN102624087B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103560496A (en) * | 2013-11-08 | 2014-02-05 | 宁夏天地经纬电力设备工程有限公司 | Control system of intelligent circuit breaker |
| CN103633612B (en) * | 2013-12-25 | 2017-01-18 | 国家电网公司 | Vacuum circuit breaker |
| CN105355519B (en) * | 2015-11-30 | 2017-08-29 | 丽水学院 | Intelligent type permanent magnet switch driving circuit and its control method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85204764U (en) * | 1985-10-30 | 1988-02-24 | 上海海运学院 | Anti-high-tension breakdown driving circuit for power step-by-step motor |
| CN2591830Y (en) * | 2002-12-24 | 2003-12-10 | 汕头高新区天健电气有限公司 | Intelligent observing & controlling protector for low voltage distributing system |
| CN2794056Y (en) * | 2005-05-20 | 2006-07-05 | 上海电器股份有限公司人民电器厂 | Telecommunication adapter with low-voltage field electrical appliances bus connection |
| CN201562973U (en) * | 2009-11-04 | 2010-08-25 | 南京因泰莱配电自动化设备有限公司 | High-voltage power reactive compensation comprehensive protection controller |
| CN201946497U (en) * | 2010-12-14 | 2011-08-24 | 深圳市金博联电力技术有限公司 | Self-adaptive controller of mono-stable permanent magnet mechanism of vacuum switch |
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2012
- 2012-03-07 CN CN201210057313.1A patent/CN102624087B/en active Active
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| CN102624087A (en) | 2012-08-01 |
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Owner name: LIAONING TECHNICAL UNIVERSITY STATE ELECTRIC NET C Free format text: FORMER OWNER: LIAONING TECHNICAL UNIVERSITY Effective date: 20130110 |
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Effective date of registration: 20130110 Address after: 125000 Huludao City, Liaoning province Longgang district on the road No. 5 Applicant after: Huludao Power Supply Company, Liaoning Electric Power Co., Ltd. Applicant after: Liaoning Technical University Applicant after: State Grid Corporation of China Address before: 125000 Huludao City, Liaoning province Longgang district on the road No. 5 Applicant before: Huludao Power Supply Company, Liaoning Electric Power Co., Ltd. Applicant before: Liaoning Technical University |
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