CN208241407U - A kind of intelligent substation relay protection of transmission line travelling wave ranging integrated apparatus - Google Patents
A kind of intelligent substation relay protection of transmission line travelling wave ranging integrated apparatus Download PDFInfo
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- CN208241407U CN208241407U CN201820831185.4U CN201820831185U CN208241407U CN 208241407 U CN208241407 U CN 208241407U CN 201820831185 U CN201820831185 U CN 201820831185U CN 208241407 U CN208241407 U CN 208241407U
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- plug
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- travelling wave
- relay protection
- wave ranging
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
Abstract
The utility model discloses a kind of intelligent substation relay protection of transmission line travelling wave ranging integrated apparatus; comprising process layer communication plug-in unit, interior communication plug-in unit, open into plug-in unit, calculating DSP plug-in unit, CPU management plug-in unit, power insert and backboard; all plug-in units are independently installed in the chassis by slot mode, and all plug-in units are all connected to the power bus and data/address bus of backboard.Process layer communication plug-in unit is used to receive the sampled data of combining unit; it opens and is used for conventional intake acquisition into plug-in unit; interior communication plug-in unit is used to exchange data with route terminal device; DSP plug-in unit is calculated for realizing relay protection function and travelling wave ranging function; CPU management plug-in unit is for realizing the storage of device clock synchronization, management, communication and recording; power insert is used to provide working power for all plug-in units, and backboard is used to provide connection bus for all plug-in units.The utility model has unified sampled signal access way, realizes the integrated of traditional relay protection and travelling wave ranging function.
Description
Technical field
The utility model relates to a kind of intelligent substation relay protection of transmission line travelling wave ranging integrated apparatus, belong to electricity
Force system transmission line fault location technology field.
Background technique
Failure point of power transmission line, which in time, is accurately located, to be conducive to reduce transmission line malfunction danger caused by electric system
Evil, is the key that smart grid security reliability service.The ranging means being widely used in the power system at present are based on two kinds of sides
Formula: impedance method fault localization and traveling wave method fault localization.Impedance method is based on steady-state quantity and line impedance parameter when failure and calculates event
Barrier point position, influences, range accuracy is low vulnerable to transition resistance, line distribution capacitance and system operation mode.Traveling wave method is based on event
Voltage or current traveling wave signal calculate position of failure point when barrier, are not influenced by above-mentioned factor, have the advantages that range accuracy is high.
The transmission line travelling wave range-measurement system used in intelligent substation at present, it is most of still to be based on electromagnetic type mutual inductance
Device or dedicated traveling wave sensor acquire fault traveling wave signal, access traveling wave ranging device by hard cable mode and realize travelling wave signal
Acquisition, analysis and processing.This mode increases secondary connection complexity, increases intelligent substation operation and maintenance amount,
System fault probability is improved, can no longer meet the demand of intelligent substation.
In addition, at present the transmission line travelling wave range-measurement system used in intelligent substation use by station configuration mode, by
A set of travelling wave ranging system completes all important line accesses of substation, and completion is communicated with route opposite side substation data.In the presence of
Following deficiency: (1) needing to configure private communication channel for traveling wave ranging device, increase construction cost, operation and maintenance workload,
Part substation uses traditional communication means, and route two sides traveling wave ranging device communication stability and timeliness cannot be guaranteed；
(2) it needs to configure dedicated screen cabinet for traveling wave ranging device, increases substation bit occupancy.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of intelligent substation relay protection of transmission line traveling wave
It is relevant soft or hard to increase travelling wave ranging on intelligent substation relay protection of transmission line device basic for ranging integrated apparatus
Part module, the integrated apparatus of composition receive power frequency and travelling wave signal sampled data by process layer communication interface, basic herein
Upper realization traditional relay protection function and travelling wave ranging function.
In order to achieve the above objectives, the technical solution of the utility model is as follows:
A kind of intelligent substation relay protection of transmission line travelling wave ranging integrated apparatus, the integrated apparatus are installed on
Wall, including CPU management plug-in unit, calculate DSP plug-in unit, interior communication plug-in unit, process layer communication plug-in unit, open into plug-in unit, power supply
Plug-in unit and backboard；All plug-in units are independently installed in the chassis by slot mode；The backboard includes power bus and data
Bus, all plug-in units are all connected to the power bus and data/address bus of backboard；It is described to open into plug-in unit acquisition ordinary tap amount input
Signal；The process layer communication plug-in unit is connected with the combining unit of process layer and intelligent terminal；The interior communication plug-in card configuration
Optical fiber interface, the optical fiber of the interior communication plug-in unit of the integrated apparatus of the optical fiber interface and route opposite side of the interior communication plug-in unit
Interface is connected by optical-fibre channel；The calculating DSP plug-in unit includes fpga chip, dsp chip and memory chip；The pipe
Managing CPU card includes microprocessor, local storage medium, ethernet interface and drive control module.
Process layer communication plug-in unit configuration ethernet communication interface above-mentioned；The process layer communication plug-in unit passes through ether Netcom
Letter interface is connected with the combining unit of process layer.
Process layer communication plug-in unit above-mentioned is communicated by the way of GOOSE Ethernet with intelligent terminal.
Microprocessor above-mentioned uses embedded Linux kernel operating system.
CPU management plug-in unit above-mentioned is connected with the clock system of station level.
CPU management plug-in unit above-mentioned is by ethernet interface, using 61850 specification of standard IEC and station level equipment
It is communicated.
Compared with prior art, the utility model has the beneficial effects that
(1) the received power frequency component of device institute and travelling wave signal sampled data pass through process layer communication interface and realize,
Unify signal access way, adapts to intelligent substation demand.
(2) device makes full use of original protection dedicated optic fiber channel, realizes route two sides device traveling wave information data
Exchange, no longer needs to specially provide traveling wave ranging device inter-substation communication channels, saves construction, operation and maintenance cost, mention
Communication reliability between high traveling wave information station.
(3) the arrangement achieves the integrated of traditional relay protection function and travelling wave ranging function is no longer needed to by interval configuration
Special configuration travelling wave ranging correlation screen cabinet, saves construction, operation and maintenance cost, and it is complicated to simplify travelling wave ranging system structure
Degree, improves system reliability.
Detailed description of the invention
Fig. 1 is utility model device application scenarios schematic diagram；
Fig. 2 is utility model device plug-in unit scheme of installation；Fig. 2 (a) is front view；Fig. 2 (b) is top view；
Fig. 3 is each pin function schematic diagram of utility model device.
Specific embodiment
The utility model provides a kind of intelligent substation relay protection of transmission line travelling wave ranging integrated apparatus, the dress
The application scenarios set in intelligent substation are as shown in Figure 1.
The device belongs to bay device,
(1) it is connect with process layer devices (combining unit, intelligent terminal), combining unit is received based on standard transmission protocol
Sampled value (SV), the switching value transmission between intelligent terminal use GOOSE Ethernet.
(2) IEC61850 standard is followed with station level communication between devices, using MMS network communication.
(3) the clock synchronization signal of station level clock system output is received, clock synchronization precision is better than 1us.
(4) it is connect using dedicated optic fiber channel with route opposite side device, realizes power frequency data and traveling wave information exchange between station.
In order to meet relay protection function and the travelling wave ranging required precision of described device, process layer devices need to meet following
Condition:
(1) electronic current mutual inductor travelling wave current signal sampling rate is not less than 1MHz, travelling wave current signal response speed
Rate is less than 1 μ s.
(2) combining unit output is not less than 1kHz for the power frequency data sampling rate that relay protection function uses, and output is used
It is not less than 1MHz in the travelling wave current data sampling rate that travelling wave ranging function uses.
Utility model device increases travelling wave ranging phase based on intelligent substation relay protection of transmission line device
The intelligent integral device plug-in unit schematic diagram of the module of software and hardware of pass, composition is as shown in Figure 2 (a) and (b), and each pin function is as schemed
Shown in 3.
As shown in Figure 2 (a) and (b), device includes: 1. CPU management plug-in unit, 2. calculate DSP plug-in unit, 3. interior communication insert
5. part, 4. process layer communication plug-in unit are opened into plug-in unit, 6. power insert and 7. backboard.Each plug-in unit is independently pacified by slot mode
Dress is in the chassis.Specifically,
It opens and realizes conventional intake acquisition into plug-in unit；The conjunction of the ethernet interface and process layer of process layer communication plug-in unit
And unit is connected, and receives the sampled data of combining unit output；Process layer communication plug-in unit is also used with the intelligent terminal of process layer
The mode of GOOSE Ethernet is communicated；Between the station of the integrated apparatus of the optical fiber interface and route opposite side of interior communication plug-in unit
The optical fiber interface of communication plug-in unit is connected using original protection dedicated optic fiber channel, is realized between the device of route opposite side
Power frequency data and traveling wave information exchange；Relay protection function and travelling wave ranging function calculating are realized by calculating DSP plug-in unit；Pass through
CPU management plug-in unit realization device clock synchronization, management, communication and recording store function.All of above plug-in unit is all connected to the electricity of backboard
Source bus and data/address bus realize that working power acquisition is exchanged with data high-speed between plug-in unit.
Utility model device does not change intelligent substation traditional relay protection hardware interface, escalation process layer communication plug-in unit
Middle fpga chip processing capacity and memory chip buffer memory capacity realize reception, decoding and the circulation of power frequency and traveling wave digital signal
Storage.Therefore the arrangement achieves the unifications of power frequency and travelling wave signal access way, adapt to intelligent substation demand.
The device utilizes original protection dedicated optic fiber channel, realizes power frequency data and traveling wave information between the device of route two sides
Data exchange.The traveling wave information exchanged required for travelling wave ranging function includes that wavefront reaches markers and device clock synchronization shape
State.
The device realizes relay protection function and travelling wave ranging function calculating using DSP plug-in unit is calculated.In addition to traditional relay
Defencive function, calculate DSP plug-in unit realize travelling wave ranging function mainly include the calculating of traveling wave start-up criterion, traveling wave data conversion storage,
Traveling-wave waveform analysis and traveling wave fault location.Calculating DSP plug-in unit mainly includes fpga chip, dsp chip, memory chip.This is inserted
Part obtains power frequency and traveling wave sampled data, on-off state, opposite side power frequency data and traveling wave information by backboard data/address bus；
Dsp chip is based on sampled data and realizes that traveling wave start-up criterion calculates, and completes traveling-wave waveform analysis after starting and survey with traveling wave fault
Away from calculating；Traveling wave data conversion storage realizes that the realization of these computing functions is in existing skill by fpga chip and memory chip after starting
It is highly developed in art.
The device uses CPU management plug-in unit realization device clock synchronization, management, communication and recording store function.CPU management plug-in unit
It mainly include microprocessor, local storage medium, ethernet interface and drive control module on hardware, operating system uses
Embedded Linux kernel.By backboard data/address bus, from calculating, DSP plug-in unit obtains relay protection to CPU management plug-in unit and traveling wave is surveyed
Away from information, realize that the relevant management of travelling wave ranging, communication and recording function, the realization of these functions are non-in the prior art
It is often mature.Drive control module exists between all main circuits and hardware interface, the function such as main amplification, conversion for realizing signal
Can, it realizes signaling interface matching, is general technology module.Based on local storage medium, following for traveling wave recorded wave file may be implemented
Ring storage；Traveling wave survey may be implemented in IEC61850 model extension travelling wave ranging relevant information based on original protective relaying device
IEC61850 communication away from information；Event and report logging modle expansion variable reference list based on original protective relaying device,
The logout of traveling wave starting and distance measurement result may be implemented.In addition, CPU management plug-in unit is real by receiving and parsing through clock synchronization signal
Existing device clock synchronizing function；By ethernet interface, realized using 61850 specification of standard IEC logical with station level equipment
Letter.
Embodiment described above is illustrative only and not limiting the protection scope of the utility model.It is any to be familiar with this technology neck
The technical staff in domain is in the technical scope that the utility model discloses, the modification or equivalent replacement carried out, should all cover at this
Within the protection scope of utility model.
Claims (6)
1. a kind of intelligent substation relay protection of transmission line travelling wave ranging integrated apparatus, which is characterized in that the integration
Device is installed on wall, including CPU management plug-in unit, calculate DSP plug-in unit, interior communication plug-in unit, process layer communication plug-in unit, open into
Plug-in unit, power insert and backboard；All plug-in units are independently installed in the chassis by slot mode；The backboard includes that power supply is total
Line and data/address bus, all plug-in units are all connected to the power bus and data/address bus of backboard；Described open is opened into plug-in unit acquisition routine
Measure input signal in pass；The process layer communication plug-in unit is connected with the combining unit of process layer and intelligent terminal；The interior communication
The interior communication of plug-in card configuration optical fiber interface, the integrated apparatus of the optical fiber interface and route opposite side of the interior communication plug-in unit is inserted
The optical fiber interface of part is connected by optical-fibre channel；The calculating DSP plug-in unit includes fpga chip, dsp chip and memory core
Piece；The CPU management plug-in unit includes microprocessor, local storage medium, ethernet interface and drive control module.
2. a kind of intelligent substation relay protection of transmission line travelling wave ranging integrated apparatus according to claim 1,
It is characterized in that, the process layer communication plug-in unit configuration ethernet communication interface；The process layer communication plug-in unit passes through ether Netcom
Letter interface is connected with the combining unit of process layer.
3. a kind of intelligent substation relay protection of transmission line travelling wave ranging integrated apparatus according to claim 1,
It is characterized in that, the process layer communication plug-in unit is communicated by the way of GOOSE Ethernet with intelligent terminal.
4. a kind of intelligent substation relay protection of transmission line travelling wave ranging integrated apparatus according to claim 1,
It is characterized in that, the microprocessor uses embedded Linux kernel operating system.
5. a kind of intelligent substation relay protection of transmission line travelling wave ranging integrated apparatus according to claim 1,
It is characterized in that, the CPU management plug-in unit is connected with the clock system of station level.
6. a kind of intelligent substation relay protection of transmission line travelling wave ranging integrated apparatus according to claim 1,
Be characterized in that, the CPU management plug-in unit by ethernet interface, using 61850 specification of standard IEC and station level equipment into
Row communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820831185.4U CN208241407U (en) | 2018-05-30 | 2018-05-30 | A kind of intelligent substation relay protection of transmission line travelling wave ranging integrated apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820831185.4U CN208241407U (en) | 2018-05-30 | 2018-05-30 | A kind of intelligent substation relay protection of transmission line travelling wave ranging integrated apparatus |
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| CN208241407U true CN208241407U (en) | 2018-12-14 |
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| CN201820831185.4U Expired - Fee Related CN208241407U (en) | 2018-05-30 | 2018-05-30 | A kind of intelligent substation relay protection of transmission line travelling wave ranging integrated apparatus |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109861166A (en) * | 2019-01-11 | 2019-06-07 | 国电南瑞科技股份有限公司 | Fast recovery of power supply method and system after a kind of special line fault |
| CN110895321A (en) * | 2019-12-06 | 2020-03-20 | 南京南瑞继保电气有限公司 | Secondary equipment time mark alignment method based on recording file reference channel |
| CN114006804A (en) * | 2021-11-18 | 2022-02-01 | 贵州电网有限责任公司 | Power distribution edge server system based on centralized protection control system architecture |
-
2018
- 2018-05-30 CN CN201820831185.4U patent/CN208241407U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109861166A (en) * | 2019-01-11 | 2019-06-07 | 国电南瑞科技股份有限公司 | Fast recovery of power supply method and system after a kind of special line fault |
| CN110895321A (en) * | 2019-12-06 | 2020-03-20 | 南京南瑞继保电气有限公司 | Secondary equipment time mark alignment method based on recording file reference channel |
| CN110895321B (en) * | 2019-12-06 | 2021-12-10 | 南京南瑞继保电气有限公司 | Secondary equipment time mark alignment method based on recording file reference channel |
| CN114006804A (en) * | 2021-11-18 | 2022-02-01 | 贵州电网有限责任公司 | Power distribution edge server system based on centralized protection control system architecture |
| CN114006804B (en) * | 2021-11-18 | 2024-04-26 | 贵州电网有限责任公司 | Distribution edge server system based on centralized protection control system architecture |
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| CF01 | Termination of patent right due to non-payment of annual fee |