CN204794368U - Self -adaptation line protection device - Google Patents
Self -adaptation line protection device Download PDFInfo
- Publication number
- CN204794368U CN204794368U CN201520493815.8U CN201520493815U CN204794368U CN 204794368 U CN204794368 U CN 204794368U CN 201520493815 U CN201520493815 U CN 201520493815U CN 204794368 U CN204794368 U CN 204794368U
- Authority
- CN
- China
- Prior art keywords
- module
- relay
- protective device
- unit
- control unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Emergency Protection Circuit Devices (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model discloses a self -adaptation line protection device, including exchanging sampling module, tripping operation export module, man -machine module, external conversion module, clock module, storage module, communication module, remote signalling input module, signal mother board, CPU module and power module, the signal mother board respectively with exchange sampling module, tripping operation export module, man -machine module, parallel port print module, GPS hardware to the time module, external conversion module and remote signalling input module be connected, the CPU module is connected with signal mother board, storage module, communication module and clock module respectively, power module is connected with interchange sampling module, man -machine module and CPU module respectively. The utility model provides a protection of wind -powered electricity generation circuit when getting into the electric wire netting, possess selectivity, rapidity and sensitivity on relay protection, improved the flexibility of power system operation mode and the stability of system.
Description
Technical field
The utility model relates to adaptive Current Protection and single phase ground fault recognition device, adaptable line protective device when particularly a kind of wind-powered electricity generation circuit enters electrical network.
Background technology
Along with the continuous expansion of electrical network scale and the Fast Construction of electric power facility, network configuration is also constantly changing.Traditional relaying protection is carried out planning and adjusting according to relatively-stationary network configuration and parameter, along with the continuous change of network configuration and the adjustment of parameter, therefore needs to adjust with adjusting relevant relaying configuration.The impact of network configuration change shows the most obvious after distributed power source access network; If setting value changes, just need the personnel of adjusting to adjust to scene, also will have a power failure to relevant primary equipment if desired and just can adjust, which adds the workload of the personnel of adjusting.
Adaptable line protection can calculate according to the change real-time online of power system operation mode, topological structure and fault type and revise the protection of protection seting value, can obtain the relaying protection system of best protection performance.Adaptive guard is obviously better than conventional relaying protection system in selectivity, rapidity and sensitivity, and this not only enables existing electric power networks transmit more power, but also can improve the flexibility of power system operation mode and the stability of system.Consider that electric power system is the dynamical system that a parameter and state are all in constantly change; GPF (General Protection False technology is very limited to the countermeasure of this kind of dynamic change; the protection of research self-adapting type can open up new approach for improving relaying protection performance, significant.
Summary of the invention
For the shortcoming overcoming prior art is with not enough, adaptable line protective device when the utility model provides a kind of wind-powered electricity generation circuit to enter electrical network, the technical scheme adopted is:
A kind of adaptable line protective device, comprises AC sampling module, tripping operation outlet module, man-machine module, external modular converter, clock module, memory module, communication module, remote signalling input module, signal motherboard, CPU module and power module;
Described signal motherboard is connected with module, external modular converter and remote signalling input module when AC sampling module, the outlet module that trips, man-machine module, parallel port print module, GPS hardware pair respectively; CPU module is connected with signal motherboard, memory module, communication module and clock module respectively; Power module is connected with AC sampling module, man-machine module and CPU module respectively.
Described AC sampling module comprises voltage/current converter unit, filter unit, D/A conversion unit, data transmission and gathers control unit; The output of described voltage/current converter unit connects the input of filter unit, and the output of filter unit connects the input of D/A conversion unit, the output connection data transmission of D/A conversion unit and the input of collection control unit; Described voltage/current converter unit is 12 road voltages or current sample passage.
The sampling rate of described AC sampling module is not less than 25.6KHz; Described D/A conversion unit adopts A/D converter, and described A/D converter is not less than 16.
Further, module when a kind of adaptable line protective device also comprises parallel port print module and GPS hardware pair; Module connection signal motherboard respectively when described parallel port print module and GPS hardware pair.
Further, described tripping operation outlet module comprises relay control unit, coded lock unit and data transmission and gathers control unit; The input of described relay control unit connects the output of coded lock unit, the input connection data transmission of coded lock unit and the output of collection control unit.
Further, described relay control unit comprises starting relay, release relay, device alarm relay, device abnormality alarming relay, protection act signal relay, trip protection relay, protection closing relay, remote control tripping relay, remote control closing relay, tripping operation latching relay, combined floodgate latching relay, anti-trip relay, jumping position supervisory relay and co-bit supervisory relay.
Further, 2 pieces of sampled data cache modules are provided with in described data transmission and collection control unit.
Further, 12 described road voltages or current sample passage comprise 5 tunnel protection voltage acquisition passages, 4 road protective current acquisition channels and 3 drive test amount current acquisition passages.
Further, described communication module comprises communication serial ports and Ethernet interface.
Further, described memory module comprises the program space and memory headroom.
Further, described remote signalling input module is 20 tunnel signalling channels.
Further, described CPU module is MPC8379 processor or MPC8377 processor.
Compared with prior art, the utility model is input to signal mother matrix and CPU module after the voltage of 12 road voltages or current sample channel acquisition or current signal are carried out conversion process by AC sampling module successively; The information of the input of the keyboard of AC sampling module, man-machine module, external modular converter, clock module, communication module, remote signalling input module carries out processing and analyzing by CPU module; by the display output processing result of man-machine module, and carry out adaptive guard control by the relay of the outlet module that trips.Beneficial effect is: solve protection when wind-powered electricity generation circuit enters electrical network, relaying protection possesses selectivity, rapidity and sensitivity, improves the flexibility of power system operation mode and the stability of system.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Be described in further detail embodiment of the present utility model below in conjunction with accompanying drawing, wherein in institute's drawings attached, identical label represents same or similar parts, and the accompanying drawing in specification is reduced form, only for understanding concrete structure of the present utility model.Following examples only for clearly the technical solution of the utility model being described, and can not limit protection range of the present utility model.
The utility model discloses a kind of online energy monitor terminal installation, implement to be described to the utility model below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of adaptable line protective device, comprises AC sampling module, tripping operation outlet module, man-machine module, external modular converter, clock module, memory module, communication module, remote signalling input module, signal motherboard, CPU module and power module;
Described signal motherboard is connected with module, external modular converter and remote signalling input module when AC sampling module, the outlet module that trips, man-machine module, parallel port print module, GPS hardware pair respectively; CPU module is connected with signal motherboard, memory module, communication module and clock module respectively; Power module is connected with AC sampling module, man-machine module and CPU module respectively.
Described AC sampling module comprises voltage/current converter unit, filter unit, D/A conversion unit, data transmission and gathers control unit; The output of described voltage/current converter unit connects the input of filter unit, and the output of filter unit connects the input of D/A conversion unit, the output connection data transmission of D/A conversion unit and the input of collection control unit; Described voltage/current converter unit is 12 road voltages or current sample passage.The sampling rate of AC sampling module is not less than 25.6KHz, and the AD figure place required by sampling precision is not less than 16, and the A/D converter namely adopted is not less than 16, and sampling rate is not less than 25.6kHz, i.e. 512 points/cycle.
The Main Function of voltage/current converter unit is by the little PT on AC plate by the voltage/current signals of PT, CT secondary side of installing in wind field bus line system, little CT is transformed to less voltage/current signals, to meet the sampling request of AD conversion device, also the electrical system of two different electric pressures is kept apart, to improve the Electro Magnetic Compatibility of device simultaneously.The rated operational voltage of little PT is 100V, and the rated operational current of little CT is 5A.And at every block AC patch panel design 12 road voltages or current sample passage.First the AC signal of the voltage/current converter output terminal on 12 tunnels is carried out low frequency filtering by filtering and D/A converter module, after carry out sampling, keeping and analog-to-digital conversion through AD.Because sampling rate is too high, in order to avoid frequently taking CPU, by controlling of sampling and data transport functions independent, by data transmission and gather control unit come.
CPU module mainly completes adaptive guard algorithm, earthing wire-selecting algorithm, communication, failure wave-recording etc.
Man-machine module comprises liquid crystal display and keyboard, and liquid crystal display display window adopts four lines, often row 12 Chinese characters; The keyboard operation mode that configuration YH-B811, YH-B511 device is general, configuration packet containing upper and lower, left and right, add, subtract, exit, confirm and the keyboard of 9 buttons such as reset, make man-machine interface clear understandable, human-computer dialogue is convenient and simple for operation.
Module when a kind of adaptable line protective device also comprises parallel port print module and GPS hardware pair; Module connection signal motherboard respectively when described parallel port print module and GPS hardware pair.During GPSB code pair, interface is by relaying protection standard design, can match as required.
External modular converter can match IEC61850 communication module, and realize the communication with IEC61850 backstage, IEC61850 takies an Ethernet interface of device.
Described tripping operation outlet module comprises relay control unit, coded lock unit and data transmission and gathers control unit; The input of described relay control unit connects the output of coded lock unit, the input connection data transmission of coded lock unit and the output of collection control unit.
Described relay control unit comprises starting relay, release relay, device alarm relay, device abnormality alarming relay, protection act signal relay, trip protection relay, protection closing relay, remote control tripping relay, remote control closing relay, tripping operation latching relay, combined floodgate latching relay, anti-trip relay, jumping position supervisory relay and co-bit supervisory relay.Wherein, the concrete model of described starting relay is DS2Y-S-DC24V, the concrete model of described release relay and device alarm relay model is JQX-115F/024-1Z-S2, described device abnormality alarming relay, protection act signal relay, trip protection relay, protection closing relay, remote control tripping relay, the concrete model of remote control closing relay is JQX-115F/024-2H-S4, described tripping operation latching relay, combined floodgate latching relay, the concrete model of anti-trip relay model is RT-954009, described jumping position supervisory relay and co-bit supervisory relay model are JQX-115F/060-2H-S4, the operation circuit of the common component devices of these relays.Whole device provides 5 indicator lights, respectively: operation, protection act, point position, co-bit, alarm.Device alarm relay, device abnormality alarming relay, protection act signal relay, need to carry out hand resetting by reset button after action.
2 pieces of sampled data cache modules are provided with in described data transmission and collection control unit, two pieces of sampled data buffer memorys are opened up in data transmission and collection control unit, sampled data is made to accomplish seamless switching when transmitting and depositing on the one hand, decrease interruption times on the other hand, reduce the expense of CPU.
12 described road voltages or current sample passage comprise 5 tunnel protection voltage acquisition passages, 4 road protective current acquisition channels and 3 drive test amount current acquisition passages.
Described communication module comprises communication serial ports and Ethernet interface, wherein, comprise the Ethernet interface of 1 tunnel communication serial ports (RS485 or RS232) and 2 road 10/100/1000M compatible fiber, convenient combination with ancillary equipment forms prevailing network, the communication between realization and PLC, RTU or background monitoring software.
Described memory module comprises the program space and memory headroom, and the program space requires storage failure record ripple, logout etc.The sampling rate required due to protection is higher, and sampling channel is more, has requirement to memory size, and the program space is not less than 64M, and memory headroom is not less than 128M.
Described remote signalling input module is 20 tunnel signalling channels, and these remote signals can carry out self-definition design.
Described CPU module is MPC8379 processor or MPC8377 processor, and processor meets the requirement of the more complicated self-adaptive current algorithm of calculation process and line selection algorithm, and therefore the arithmetic speed of CPU is enough high, and require more than 32, dominant frequency is not less than 400M.
Operation principle of the present utility model is: AC sampling module is input to signal mother matrix and CPU module after the voltage of 12 road voltages or current sample channel acquisition or current signal are carried out conversion process successively; The information of the input of the keyboard of AC sampling module, man-machine module, external modular converter, clock module, communication module, remote signalling input module carries out processing and analyzing by CPU module; by the display output processing result of man-machine module, and carry out adaptive guard control by the relay of the outlet module that trips.
Above-described embodiment is the present invention's preferably execution mode; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (10)
1. an adaptable line protective device, it is characterized in that, comprise AC sampling module, tripping operation outlet module, man-machine module, external modular converter, clock module, memory module, communication module, remote signalling input module, signal motherboard, CPU module and power module;
Described signal motherboard is connected with module, external modular converter and remote signalling input module when AC sampling module, the outlet module that trips, man-machine module, parallel port print module, GPS hardware pair respectively; CPU module is connected with signal motherboard, memory module, communication module and clock module respectively; Power module is connected with AC sampling module, man-machine module and CPU module respectively;
Described AC sampling module comprises voltage/current converter unit, filter unit, D/A conversion unit, data transmission and gathers control unit; The output of described voltage/current converter unit connects the input of filter unit, and the output of filter unit connects the input of D/A conversion unit, the output connection data transmission of D/A conversion unit and the input of collection control unit; Described voltage/current converter unit is 12 road voltages or current sample passage;
The sampling rate of described AC sampling module is not less than 25.6KHz; Described D/A conversion unit adopts A/D converter, and described A/D converter is not less than 16.
2. a kind of adaptable line protective device according to claim 1, is characterized in that, module when also comprising parallel port print module and GPS hardware pair; Module connection signal motherboard respectively when described parallel port print module and GPS hardware pair.
3. a kind of adaptable line protective device according to claim 1, is characterized in that, described tripping operation outlet module comprises relay control unit, coded lock unit and data transmission and gathers control unit; The input of described relay control unit connects the output of coded lock unit, the input connection data transmission of coded lock unit and the output of collection control unit.
4. a kind of adaptable line protective device according to claim 3; it is characterized in that, described relay control unit comprises starting relay, release relay, device alarm relay, device abnormality alarming relay, protection act signal relay, trip protection relay, protection closing relay, remote control tripping relay, remote control closing relay, tripping operation latching relay, combined floodgate latching relay, anti-trip relay, jumping position supervisory relay and co-bit supervisory relay.
5. a kind of adaptable line protective device according to claim 1, is characterized in that, is provided with 2 pieces of sampled data cache modules in described data transmission and collection control unit.
6. a kind of adaptable line protective device according to claim 1, is characterized in that, 12 described road voltages or current sample passage comprise 5 tunnel protection voltage acquisition passages, 4 road protective current acquisition channels and 3 drive test amount current acquisition passages.
7. a kind of adaptable line protective device according to claim 1, it is characterized in that, described communication module comprises communication serial ports and Ethernet interface.
8. a kind of adaptable line protective device according to claim 1, it is characterized in that, described memory module comprises the program space and memory headroom.
9. a kind of adaptable line protective device according to claim 1, is characterized in that, described remote signalling input module is 20 tunnel signalling channels.
10. a kind of adaptable line protective device according to claim 1, is characterized in that, described CPU module is MPC8379 processor or MPC8377 processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520493815.8U CN204794368U (en) | 2015-07-09 | 2015-07-09 | Self -adaptation line protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520493815.8U CN204794368U (en) | 2015-07-09 | 2015-07-09 | Self -adaptation line protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204794368U true CN204794368U (en) | 2015-11-18 |
Family
ID=54534346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520493815.8U Active CN204794368U (en) | 2015-07-09 | 2015-07-09 | Self -adaptation line protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204794368U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108736456A (en) * | 2018-07-18 | 2018-11-02 | 杭州新融方科技有限公司 | Power distribution network protective relaying device |
-
2015
- 2015-07-09 CN CN201520493815.8U patent/CN204794368U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108736456A (en) * | 2018-07-18 | 2018-11-02 | 杭州新融方科技有限公司 | Power distribution network protective relaying device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104242471B (en) | A kind of comprehensive automation system of transformer substation | |
| CN107681642B (en) | A kind of substation's site protection system | |
| CN103441572B (en) | Substation equipment method for supervising | |
| CN203166626U (en) | Intelligent traction substation | |
| CN202351347U (en) | Monitoring terminal device for distribution transformer | |
| CN102937685A (en) | Real-time simulation technique-based integrated testing platform for substation | |
| CN203233236U (en) | Digital protection, measurement and control integrated device | |
| CN104242472B (en) | A kind of railway station low buckling distribution intelligent monitor system | |
| CN103683507B (en) | Distributed generation micro-grid control and electric energy quality monitoring integrated device and method | |
| CN202076849U (en) | Centralized protection, measurement and control device for transformer station | |
| CN103166319A (en) | Device and method for detecting and remotely controlling abnormal leakage of power line | |
| CN101458504B (en) | Digital synthesis protection observe and control unit of multipath operation mode | |
| CN102983627A (en) | Transition method of intellectualized monitoring system modification process of conventional transformer substation | |
| CN204794368U (en) | Self -adaptation line protection device | |
| CN104142648A (en) | Management and control terminal of urban rail traffic low-voltage power distribution system | |
| CN208782467U (en) | A kind of route integrated protection and monitoring device | |
| CN207133618U (en) | A kind of box type transformer intelligent measuring and control device | |
| CN203251142U (en) | Switch cabinet integrated monitoring terminal | |
| CN202651896U (en) | Coordinated control system of micro power grid | |
| CN203056694U (en) | Substation area intelligent control host device for digital substation | |
| CN205901165U (en) | Quick response's real -time looped netowrk cabinet protection device | |
| CN209627054U (en) | A kind of site interval measure and control device for substation | |
| CN204290503U (en) | Integral intelligent AC power case | |
| CN205920365U (en) | Power switch cabinet intelligent online monitoring controlling means | |
| CN201854085U (en) | Bus coupler segmented monitoring protection and comprehensive self-automatic input device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |