CN203911591U - Monostable pole-mounted permanent magnetic mechanism circuit breaker operation pulse control device - Google Patents
Monostable pole-mounted permanent magnetic mechanism circuit breaker operation pulse control device Download PDFInfo
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- CN203911591U CN203911591U CN201420342857.7U CN201420342857U CN203911591U CN 203911591 U CN203911591 U CN 203911591U CN 201420342857 U CN201420342857 U CN 201420342857U CN 203911591 U CN203911591 U CN 203911591U
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- 238000012544 monitoring process Methods 0.000 claims abstract description 24
- 239000003990 capacitor Substances 0.000 claims abstract description 22
- 238000004146 energy storage Methods 0.000 claims abstract description 16
- 230000003993 interaction Effects 0.000 claims abstract description 12
- 238000004891 communication Methods 0.000 claims abstract description 10
- 238000002955 isolation Methods 0.000 claims abstract description 6
- 230000005032 impulse control Effects 0.000 claims description 24
- 238000007600 charging Methods 0.000 claims description 9
- 230000003750 conditioning effect Effects 0.000 abstract description 3
- 239000006185 dispersion Substances 0.000 abstract 1
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- 238000009826 distribution Methods 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- ZVKAMDSUUSMZES-NZQWGLPYSA-N OS II Natural products CC(=O)N[C@H]1[C@H](OC[C@@H](O)[C@@H](O)[C@@H](O)CO)O[C@H](CO)[C@H](O[C@H]2O[C@H](CO)[C@@H](O)[C@H](O)[C@H]2O)[C@@H]1O[C@@H]3O[C@H](CO)[C@@H](O)[C@H](O)[C@H]3O ZVKAMDSUUSMZES-NZQWGLPYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
The utility model discloses a monostable pole-mounted permanent magnetic mechanism circuit breaker operation pulse control device, which comprises an MCU. The MCU is respectively connected with a power supply switching circuit, an opening and closing output module, a signal conditioning module, a communication interface and a man-machine interaction module; the power supply switching circuit is connected with a capacitor voltage monitoring module; the opening and closing output module is sequentially connected with an optocoupler isolation module and an IGBT full-bridge drive module; the IGBT full-bridge drive module is connected with the capacitor voltage monitoring module; and the capacitor voltage monitoring module is connected with an opening and closing coil inside the circuit breaker. According to the monostable pole-mounted permanent magnetic mechanism circuit breaker operation pulse control device, the problems that time when an energy storage capacitor discharges the opening and closing coil is inaccurate and dispersion is large can be solved, the conduction time of the IGBT can be effectively shortened, and the capacitor can perform multiple times of opening and closing operation with the original capacity.
Description
Technical field
The utility model belongs to intelligent grid power distribution automation equipment technical field, is specifically related to permanent magnet mechanism circuit-breaker operating impulse control device on a kind of monostable post.
Background technology
Monostable permanent magnetic mechanism is the novel breaker operating mechanism by electromagnetic mechanism and permanent magnet special combination, by changing sense of current in divide-shut brake coil, has controlled breaking-closing operating.Compare with traditional mechanism, simplified driving-chain, reduced failure rate, and can, up to more than 100,000 times, improve three times more than mechanical endurance mechanical endurance.
On power distribution network center pillar, permanent magnet mechanism circuit-breaker is often installed on the responsibility separation place of 10 kilovolts of overhead distributions; when fault occurs in subscriber's drop switch inner side; while there is switch protection mismate in circuit-breaker switching on-off and transformer station; can cause transformer station to occur switch protection tripping operation, transformer station's next stage all users all have a power failure.For avoiding other user on same feeder line to have a power failure, improve the power supply reliability of non-failed subs criber, the reliability of controlling the breaking-closing operating of permanent magnet mechanism circuit-breaker on post seems particularly important.
The prerequisite of permanent magnet mechanism circuit-breaker and control system stable operation thereof is to have reliable power supply to ensure, pulse high current is provided on the one hand permanent magnet mechanism divide-shut brake coil, drives permanent magnet mechanism circuit-breaker to realize breaking-closing operating; To controller, provide stable working power on the other hand, realize the function of State-Inspect of High-Voltage Circuit, human-computer interaction interface demonstration, protection and communication.On post, permanent magnet mechanism circuit-breaker impulse controller, by the control to branch wire time, can guarantee the reliability of breaker operator, improves its service life.The divide-shut brake burst length is too short, and the possibility of operation failure increases, and branch wire time is long, and power supply power consumption increases, and coil heating is serious, and will be affected equipment life.
Utility model content
The purpose of this utility model is to provide permanent magnet mechanism circuit-breaker operating impulse control device on a kind of monostable post, solved energy storage capacitor to the divide-shut brake coil discharge time inaccurate and dispersed large problem, effectively shortened the ON time of IGBT, made energy storage capacitor can carry out repeatedly breaking-closing operating in existing capacity situation.
The technical solution adopted in the utility model is, permanent magnet mechanism circuit-breaker operating impulse control device on monostable post, include MCU, MCU is connected with power supply switch circuit, divide-shut brake output module, signal condition module, communication interface and human-computer interaction module respectively, power supply switch circuit is connected with condenser voltage monitoring modular, divide-shut brake output module is connected with light-coupled isolation module, IGBT full-bridge driver module successively, IGBT full-bridge driver module is connected with condenser voltage monitoring modular, and condenser voltage monitoring modular is connected with the divide-shut brake coil in circuit breaker.
Feature of the present utility model is also:
Inner integrated 12 A/D converters of MCU.
Power supply switch circuit, includes power-switching circuit, and power-switching circuit is connected with power supply switch circuit by wire, and power supply switch circuit is connected with Switching Power Supply, batteries by wire respectively; Power supply switch circuit is also connected with the capacitance charging module in condenser voltage monitoring modular by wire.
Condenser voltage monitoring modular, includes energy storage capacitor, and energy storage capacitor is connected with capacitance charging module, capacitance voltage observation circuit by wire respectively; Capacitance voltage observation circuit is connected with IGBT full-bridge driver module by wire.
IGBT full-bridge driver module 3 is comprised of four G160N60 type IGBT; In capacitance voltage observation circuit, adopt LM2903 chip.
Switching Power Supply is 24V Switching Power Supply; Batteries is comprised of the storage battery of two DC12V.
Human-computer interaction module includes fault warning module, LCD MODULE, LED state display module and button module is set, and fault warning module, LCD MODULE, LED state display module and button arrange module and by wire, be connected with MCU respectively.
MCU is STM32F103 processor.
Communication interface is RS232 interface or RS485 interface.
What signal condition module adopted is MCP609 signal condition module.
The beneficial effects of the utility model are:
(1) on monostable post of the present utility model, permanent magnet mechanism circuit-breaker operating impulse control device adopts Real-Time Monitoring distribution line PT voltage and accumulator battery voltage, meets the object of uninterrupted power supply;
(2) on monostable post of the present utility model, permanent magnet mechanism circuit-breaker operating impulse control device adopts condenser voltage observation circuit, can be used for monitoring energy storage capacitor capacity and whether needs charging, whether meets the reliability of breaking-closing operating;
(3) on monostable post of the present utility model, in permanent magnet mechanism circuit-breaker operating impulse control device, adopt IGBT full bridge driving circuit, can be by changing sense of current in divide-shut brake coil, complete reliably breaking-closing operating, simultaneously by the size of electric current in monitoring divide-shut brake coil, judge whether circuit breaker has fault, be convenient to trouble hunting, dwindle the impact on electrical network.
Accompanying drawing explanation
Fig. 1 is the structural representation of permanent magnet mechanism circuit-breaker operating impulse control device on the utility model monostable post.
In figure, 1.MCU, 2. power supply switch circuit, 3.IGBT full-bridge driver module, 4. divide-shut brake coil, 5. condenser voltage observation circuit, 6. signal conditioning circuit, 7. communication interface, 8. human-computer interaction module, 9. power-switching circuit, 10. power supply switch circuit, 11. capacitance voltage observation circuits, 12. batteries, 13. light-coupled isolation modules, 14. divide-shut brake output modules, 15. energy storage capacitors, 16. capacitance charging modules, 17. fault warning modules, 18. LCD MODULE, 19.LED state display module, 20. buttons arrange module, 21. Switching Power Supplies.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
Permanent magnet mechanism circuit-breaker operating impulse control device on the utility model monostable post, its structure as shown in Figure 1, include MCU1, MCU1 respectively with power supply switch circuit 2, divide-shut brake output module 14, signal condition module 6, communication interface 7 and human-computer interaction module 8 connect, power supply switch circuit 2 is connected with condenser voltage monitoring modular 5, divide-shut brake output module 14 successively with light-coupled isolation module 13, IGBT full-bridge driver module 3 connects, IGBT full-bridge driver module 3 is connected with condenser voltage monitoring modular 5, condenser voltage monitoring modular 5 is connected with the divide-shut brake coil 4 in circuit breaker.
Inner integrated 12 A/D converters of MCU1.
Power supply switch circuit 2, includes power-switching circuit 9, and power-switching circuit 9 is connected with power supply switch circuit 10 by wire, and power supply switch circuit 10 is connected with Switching Power Supply 21, batteries 12 by wire respectively; Power supply switch circuit 10 is also by the capacitance charging module 16 in wire and condenser voltage monitoring modular 5.
Switching Power Supply 21 is 24V Switching Power Supply; Transmission line PT secondary side alternating current 220V, is converted to 24V power supply through Switching Power Supply 21; Batteries is comprised of the storage battery of two DC12V.
Condenser voltage monitoring modular 5, includes energy storage capacitor 15, and energy storage capacitor 15 is connected with capacitance charging module 16, capacitance voltage observation circuit 11 by wire respectively, and capacitance voltage observation circuit 11 is connected with IGBT full-bridge driver module 3 by wire; The interior employing of capacitance voltage observation circuit 11 LM2903 chip.
Human-computer interaction module 8 includes fault warning module 17, LCD MODULE 18, LED state display module 19 and button module 20 is set, and fault warning module 17, LCD MODULE 18, LED state display module 19 and button arrange module 20 and by wire, be connected with MCU1 respectively.
Communication interface 7 is RS232 interface or RS485 interface.
MCU1 is STM32F103 processor.
IGBT full-bridge driver module 3 is comprised of four G160N60 type IGBT.
What signal condition module 6 adopted is MCP609 signal condition module, by three voltage signals and four current signals that collect, gives MCU1.
The effect of each parts in permanent magnet mechanism circuit-breaker operating impulse control device on the utility model monostable post:
MCU1 is STM32F103 processor, and STM32F103 processor ShiST company is based on ARM Cortex
tMa 32 conventional enhancement mode Series of MCU that – M3 kernel is released for Embedded Application development field specially; This kind of chip has abundant I/O mouth function, by embedding μ C//OS II system, task is carried out to real-time management; Its built-in A/D converter is responsible for A/D conversion and is connected with human-computer interaction module 8, for completing divide-shut brake pulse control, information processing and liquid crystal display, and under failure condition, generates corresponding warning information.
What power supply switch circuit 2 adopted is that distribution line PT secondary side voltage is converted into direct current 24V through Switching Power Supply 21, the supply power mode of realization and batteries 12 complementations; When distribution line is normal, the AC signal of being exported by distribution line PT is converted to 24V direct current through Switching Power Supply 21, is being on whole monostable post, in the power supply of permanent magnet mechanism circuit-breaker operating impulse control device, to be also batteries 12, energy storage capacitor 15 chargings; When distribution line PT has a power failure or voltage falls serious and can not provide stabilized power supply time, batteries 12 in support power supply is given permanent magnet mechanism circuit-breaker operating impulse control device power supply on whole monostable post, guarantee controller and circuit breaker reliably working, thereby realize the object of uninterrupted power supply.
Transmission line PT secondary side alternating current 220V, is converted to 24V power supply through Switching Power Supply 21; And between batteries 12, realize free of discontinuities power supply.
As shown in Figure 3, IGBT full-bridge driver module 3 adopts four quick-speed turning on-offs, high-power G160N60 type IGBT; When needs carry out breaking-closing operating, by MCU1, send pulse signal, drive two corresponding IGBT conductings of corresponding IGBT full-bridge driver module 3 or shutoff, by divide-shut brake coil 4, produce forwards or electric current in the other direction, control permanent magnet mechanism and complete breaking-closing operating.
By monitoring, obtain the current waveform of divide-shut brake coil 4, and by analyzing, determine and meet divide-shut brake minimum pulse, and the current value of the interior divide-shut brake coil 4 of circuit breaker, whether monitoring breaker is successfully completed operation, and is presented in LCD MODULE 18 and LED state demonstration 19.
The interior employing of capacitance voltage observation circuit 11 LM2903 chip, forms two-way comparator circuit, realizes the Real-Time Monitoring to energy storage capacitor 15 voltages.On the utility model monostable post, setting blocking voltage scope in permanent magnet mechanism circuit-breaker operating impulse control device is 170V～180V, when the voltage at energy storage capacitor 15 two ends is during lower than 170V, MCU1 carries out low-voltage lockout to divide-shut brake output module 14, prevents because energy storage capacitor 15 off-capacities cause breaking-closing operating failure; When the voltage of energy storage capacitor 15 is during higher than 180V, MCU1 removes divide-shut brake output module 14 low-voltage lockouts, can carry out the operation of divide-shut brake or automatic reclosing.
From distribution line PT, CT, obtain respectively three road secondary voltages, four road secondary currents, wherein three road voltages are two-route wire voltage He Yi road residual voltage; Four phase current He Yi road, electric current Wei San road, road zero-sequence currents.Secondary voltage, electric current by after accurate voltage, power pack conversion isolation, carry out signal condition respectively, adjust within the scope of 0V～3.3V, flow to the AD port of MCU1 by signal conditioning circuit 6.
Communication interface 7 is used for debugging and is downloaded formula by RS232/485.
Human-computer interaction module 8 arranges module, fault warning module and MCU1 by LED state display module, LCD MODULE, button and carries out man-machine interaction.
On the utility model monostable post, permanent magnet mechanism circuit-breaker operating impulse control device has solved inaccurate to the divide-shut brake coil discharge time, the dispersed large problem of storage capacitor, effectively shortened the ON time of IGBT, made capacitor can carry out repeatedly breaking-closing operating in existing capacity situation.
Claims (10)
1. permanent magnet mechanism circuit-breaker operating impulse control device on monostable post, it is characterized in that, include MCU (1), described MCU (1) respectively with power supply switch circuit (2), divide-shut brake output module (14), signal condition module (6), communication interface (7) and human-computer interaction module (8) connect, described power supply switch circuit (2) is connected with condenser voltage monitoring modular (5), described divide-shut brake output module (14) successively with light-coupled isolation module (13), IGBT full-bridge driver module (3) connects, described IGBT full-bridge driver module (3) is connected with condenser voltage monitoring modular (5), described condenser voltage monitoring modular (5) is connected with the divide-shut brake coil (4) in circuit breaker.
2. permanent magnet mechanism circuit-breaker operating impulse control device on monostable post according to claim 1, is characterized in that, inner integrated 12 A/D converters of described MCU (1).
3. permanent magnet mechanism circuit-breaker operating impulse control device on monostable post according to claim 1, it is characterized in that, described power supply switch circuit (2), include power-switching circuit (9), described power-switching circuit (9) is connected with power supply switch circuit (10) by wire, and described power supply switch circuit (10) is connected with Switching Power Supply (21), batteries (12) by wire respectively;
Described power supply switch circuit (10) is also connected with the capacitance charging module (16) in condenser voltage monitoring modular (5) by wire.
4. according to permanent magnet mechanism circuit-breaker operating impulse control device on the monostable post described in claim 1 or 3, it is characterized in that, described condenser voltage monitoring modular (5), include energy storage capacitor (15), described energy storage capacitor (15) is connected with capacitance charging module (16), capacitance voltage observation circuit (11) by wire respectively;
Described capacitance voltage observation circuit (11) is connected with IGBT full-bridge driver module (3) by wire.
5. permanent magnet mechanism circuit-breaker operating impulse control device on monostable post according to claim 4, is characterized in that, described IGBT full-bridge driver module (3) is comprised of four G160N60 type IGBT;
In described capacitance voltage observation circuit (11), adopt LM2903 chip.
6. permanent magnet mechanism circuit-breaker operating impulse control device on monostable post according to claim 3, is characterized in that, described Switching Power Supply (21) is 24V Switching Power Supply;
Described batteries (12) is comprised of the storage battery of two DC12V.
7. permanent magnet mechanism circuit-breaker operating impulse control device on monostable post according to claim 1, it is characterized in that, described human-computer interaction module (8) includes fault warning module (17), LCD MODULE (18), LED state display module (19) and button module (20) is set, and described fault warning module (17), LCD MODULE (18), LED state display module (19) and button arrange module (20) and by wire, be connected with described MCU (1) respectively.
8. according to permanent magnet mechanism circuit-breaker operating impulse control device on the monostable post described in claim 1,2 or 7, it is characterized in that, described MCU (1) is STM32F103 processor.
9. permanent magnet mechanism circuit-breaker operating impulse control device on monostable post according to claim 1, is characterized in that, described communication interface (7) is RS232 interface or RS485 interface.
10. permanent magnet mechanism circuit-breaker operating impulse control device on monostable post according to claim 1, is characterized in that, what described signal condition module (6) adopted is MCP609 signal condition module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420342857.7U CN203911591U (en) | 2014-06-24 | 2014-06-24 | Monostable pole-mounted permanent magnetic mechanism circuit breaker operation pulse control device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420342857.7U CN203911591U (en) | 2014-06-24 | 2014-06-24 | Monostable pole-mounted permanent magnetic mechanism circuit breaker operation pulse control device |
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| CN203911591U true CN203911591U (en) | 2014-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420342857.7U Expired - Fee Related CN203911591U (en) | 2014-06-24 | 2014-06-24 | Monostable pole-mounted permanent magnetic mechanism circuit breaker operation pulse control device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107104511A (en) * | 2017-06-29 | 2017-08-29 | 青岛特锐德电气股份有限公司 | The control device and system of breaker |
| CN111105945A (en) * | 2018-10-26 | 2020-05-05 | 平高集团有限公司 | Control system for direct current switch cabinet |
-
2014
- 2014-06-24 CN CN201420342857.7U patent/CN203911591U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107104511A (en) * | 2017-06-29 | 2017-08-29 | 青岛特锐德电气股份有限公司 | The control device and system of breaker |
| CN111105945A (en) * | 2018-10-26 | 2020-05-05 | 平高集团有限公司 | Control system for direct current switch cabinet |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 |