CN106199273A - The test system of a kind of digital protection test device and multiplexer channel transmission method - Google Patents
The test system of a kind of digital protection test device and multiplexer channel transmission method Download PDFInfo
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- CN106199273A CN106199273A CN201610573958.9A CN201610573958A CN106199273A CN 106199273 A CN106199273 A CN 106199273A CN 201610573958 A CN201610573958 A CN 201610573958A CN 106199273 A CN106199273 A CN 106199273A
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- intelligent plate
- management board
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2589—Bidirectional transmission
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Emergency Protection Circuit Devices (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses the test system of a kind of digital protection test device, including management board and polylith intelligent plate, management board is connected with host computer, host computer test command is resolved, management board also and uses high-speed bus to carry out data communication between polylith intelligent plate, each intelligent plate is connected with corresponding digital protection test device by optical fiber interface thereon respectively, high-speed bus transmits multimode amplitude or instantaneous point data for management board to each intelligent plate, the CAN fieldbus for subsidiary communications it is additionally provided with between management board and polylith intelligent plate, CAN fieldbus is for test command transmission between management board and each intelligent plate, intelligent plate forwards management board after receiving GOOSE message.The present invention improves high-speed bus transmission means, utilizes management board and the intelligent plate division of labor to coordinate, it is achieved multi-channel analog tunnel data transport, meets the test needs of digital protection test device, have a good application prospect.
Description
Technical field
The present invention relates to digital transformer substation technical field of measurement and test, be specifically related to the survey of a kind of digital protection test device
Test system and multiplexer channel transmission method.
Background technology
Digital transformer substation is to be built by intelligent primary equipment and the layering of networking secondary device, it is possible to realize transformer station
Interior intelligent electric equipment room information sharing and interoperability.Digital protection test device needs test system to provide satisfied test need
All kinds of digital signals wanted, are both needed to meet IEC61850 protocol communication specification, are broadly divided into two class messages: SV message and GOOSE
Message.SV message (Sampled Value), also referred to as Sampled Measured Value sampled measurement, be a kind of for
The communication service of real-time Transmission digital sample information.GOOSE message (Generic Object Oriented Substation
Event) towards the transformer substation case of general object, it is that IEC61850 standard is quickly reported for meeting electric substation automation system
A kind of communication mechanism of literary composition demand.
But, due to partial digitized protection tester such as main transformer protection, bus differential protection, need the digital signal gathered
More, general digital test instrument (test system) is difficult to provide sufficient amount of interface to match one by one with digitalizer.Mesh
Before, digital protection test device is it is generally required to SV message provides sampled data, passage band with 4K sample rate (every cycle 80 point)
Width takies relatively big, but, if considering further that SV and GOOSE transmits at consolidated network, channel transmission data amount increases further, as
Require during fruit test that, when multiplexer channel exports simultaneously, the test internal system communication bus that digital test instrument is constituted will become bottle
Neck, it is difficult to meet test needs, be current urgent problem.
Summary of the invention
Solved by the invention technical problem is that existing for digital protection test device test system, internal communication is total
Line lazy weight, it is difficult to the problem meeting test needs.The test system of the digital protection test device of the present invention and multichannel
Channel transmission method, improves high-speed bus transmission means, utilizes management board and the intelligent plate division of labor to coordinate, it is achieved multi-channel analog passage
Data are transmitted, and meet the test needs of digital protection test device, have a good application prospect.
In order to achieve the above object, the technical solution adopted in the present invention is:
A kind of test system of digital protection test device, it is characterised in that: include management board and polylith intelligent plate, described pipe
Reason plate is connected with host computer, resolves host computer test command, and described management board also and uses between polylith intelligent plate
High-speed bus carries out data communication, and each intelligent plate tests device by optical fiber interface thereon with corresponding digital protection respectively
Being connected, described high-speed bus transmits multimode amplitude or instantaneous point data, described management board for management board to each intelligent plate
And be additionally provided with the CAN fieldbus for subsidiary communications between polylith intelligent plate, described CAN fieldbus for management board with
Test command transmission between each intelligent plate, intelligent plate forward management board after receiving GOOSE message.
The test system of aforesaid a kind of digital protection test device, it is characterised in that: also include PPS impulsive synchronization mould
Block, described PPS impulsive synchronization module is for realizing the time synchronized between management board and each intelligent plate.
The multiplexer channel transmission method of test system based on above-mentioned digital protection test device, it is characterised in that:
Comprise the following steps,
Step (1), management board receives host computer test command, resolves host computer test command；
Step (2), management board, according to the needs of test command, distinguishing tests type, selects to transmit data during high-speed bus transmission
It is that multimode amplitude or instantaneous point data are to corresponding intelligent plate；
Step (3), management board, according to the wire data type selected, carries out data calculating；
(31) when intelligent plate is when receiving multimode amplitude, and the multimode amplitude of management board output includes number of states, state width
Value, each state retention time, quality position facilities；
(32) when SV and GOOSE common network transmits, the multimode way of output of the similar analog quantity of GOOSE message is determined；
(33) when intelligent plate is when receiving instantaneous point data, and management board sets rated value in advance, and ratio utilizes and tables look-up and shift
Quickly realize, for exporting instantaneous point ratio to corresponding intelligent plate；
Step (4), calculated data are packed by management board, are sent to corresponding intelligent plate by high-speed bus；
Step (5), intelligent plate carries out message and receives and resolve, by optical fiber interface thereon with corresponding the data after packing
Digital protection test device is connected, and is digitized the test of protection tester；
Step (6), management board realizes the data synchronism output to each piece of intelligent plate, and receiving area by PPS impulsive synchronization module
Manage the feedback message of each piece of intelligent plate；
Step (7), if intelligent plate uses multimode amplitude transmission data, intelligent plate obtains starting life by CAN fieldbus
After order, the PPS rising edge of a pulse that next PPS impulsive synchronization module produces, start and send multimode amplitude data message；If it is intelligent
When plate uses instantaneous point transmission data, after intelligent plate obtains starting order by CAN fieldbus, according to transient data,
Send datagram in real time to management board.
The multiplexer channel transmission method of the test system of aforesaid described digital protection test device, its feature exists
In: (33), when intelligent plate is when receiving instantaneous point data, use every frame to transmit the mode of two instantaneous points, once present frame simultaneously
Message is made mistakes, and utilizes frame message last time to remedy, if two continuous frames message is made mistakes, is immediately terminated test.
The invention has the beneficial effects as follows: the test system of the digital protection test device of the present invention and multiplexer channel transmission
Method, improves high-speed bus transmission means, utilizes management board and the intelligent plate division of labor to coordinate, it is achieved multi-channel analog channel data passes
Defeated, meet the test needs of digital protection test device, have a good application prospect.
Accompanying drawing explanation
Fig. 1 is the system block diagram of the test system of the digital protection test device of the present invention.
Fig. 2 is the message schematic diagram of the multimode amplitude of the management board output of the present invention.
Detailed description of the invention
Below in conjunction with Figure of description, the present invention is further illustrated.
As shown in Fig. 1, the test system of the digital protection test device of the present invention, including management board and polylith intelligence
Plate, described management board is connected with host computer, resolves host computer test command, described management board also with polylith intelligent plate
Between use high-speed bus to carry out data communication, each intelligent plate is respectively by optical fiber interface thereon and corresponding digital protection
Test device is connected, and described high-speed bus transmits multimode amplitude or instantaneous point data, institute for management board to each intelligent plate
Stating and be additionally provided with the CAN fieldbus for subsidiary communications between management board and polylith intelligent plate, described CAN fieldbus is used for
Test command transmission between management board and each intelligent plate, intelligent plate forward management board after receiving GOOSE message.
Present invention additionally comprises PPS impulsive synchronization module, described PPS impulsive synchronization module is used for realizing management board and each intelligence
Time synchronized between plate, the test system of the digital protection test device of invention can make full use of test system resource,
Improve information processing rate, reduce data transmission information amount, promote test systematic function, preferably meet intelligent substation numeral
Gasifying device test needs.
The multiplexer channel transmission method of test system based on above-mentioned digital protection test device, including following step
Suddenly,
Step (1), management board receives host computer test command, resolves host computer test command；
Step (2), management board, according to the needs of test command, distinguishing tests type, selects to transmit data during high-speed bus transmission
Be multimode amplitude or instantaneous point data to corresponding intelligent plate, wherein, instantaneous point data are for short time instantaneous test number
According to；Multimode amplitude is for long-time many group test data；
Step (3), management board, according to the wire data type selected, carries out data calculating；
(31) when intelligent plate is when receiving multimode amplitude, and the multimode amplitude of management board output, as in figure 2 it is shown, include state
Quantity, state amplitude, each state retention time, quality position facilities；
(32) when SV and GOOSE common network transmits, the multimode way of output of the similar analog quantity of GOOSE message is determined；
(33) when intelligent plate is when receiving instantaneous point data, and management board sets rated value in advance, and ratio utilizes and tables look-up and shift
Quickly realize, for exporting instantaneous point ratio to corresponding intelligent plate；
When intelligent plate is when receiving instantaneous point data, use every frame to transmit the mode of two instantaneous points, once present frame report simultaneously
Literary composition is made mistakes, and utilizes frame message last time to remedy, if two continuous frames message is made mistakes, is immediately terminated test, improves security reliability.
Step (4), calculated data are packed by management board, are sent to corresponding intelligence by high-speed bus
Plate；
Step (5), intelligent plate carries out message and receives and resolve, by optical fiber interface thereon with corresponding the data after packing
Digital protection test device is connected, and is digitized the test of protection tester；
Step (6), management board realizes the data synchronism output to each piece of intelligent plate, and receiving area by PPS impulsive synchronization module
Manage the feedback message of each piece of intelligent plate；
Step (7), if intelligent plate uses multimode amplitude transmission data, intelligent plate obtains starting life by CAN fieldbus
After order, the PPS rising edge of a pulse that next PPS impulsive synchronization module produces, start and send multimode amplitude data message；If it is intelligent
When plate uses instantaneous point transmission data, after intelligent plate obtains starting order by CAN fieldbus, according to transient data,
Send datagram in real time to management board.
In sum, the test system of the digital protection test device of the present invention and multiplexer channel transmission method, improve
High-speed bus transmission means, utilizes management board and the intelligent plate division of labor to coordinate, it is achieved multi-channel analog tunnel data transport, meets numeral
The test changing protection tester needs, and has a good application prospect.
The ultimate principle of the present invention and principal character and advantages of the present invention have more than been shown and described.The technology of the industry
Personnel, it should be appreciated that the present invention is not restricted to the described embodiments, simply illustrating this described in above-described embodiment and description
The principle of invention, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, and these become
Change and improvement both falls within scope of the claimed invention.Claimed scope by appending claims and
Equivalent defines.
Claims (4)
1. the test system of a digital protection test device, it is characterised in that: include management board and polylith intelligent plate, described
Management board is connected with host computer, resolves host computer test command, and described management board also and is adopted between polylith intelligent plate
Carrying out data communication with high-speed bus, each intelligent plate is respectively by optical fiber interface thereon and corresponding digital protection test dress
Putting and be connected, described high-speed bus transmits multimode amplitude or instantaneous point data, described management for management board to each intelligent plate
Being additionally provided with the CAN fieldbus for subsidiary communications between plate and polylith intelligent plate, described CAN fieldbus is used for management board
And test command transmission between each intelligent plate, intelligent plate forward management board after receiving GOOSE message.
The test system of a kind of digital protection the most according to claim 1 test device, it is characterised in that: also include
PPS impulsive synchronization module, described PPS impulsive synchronization module is for realizing the time synchronized between management board and each intelligent plate.
3. test the multiplexer channel transmission method of the test system of device based on the digital protection described in claim 1, it is special
Levy and be: comprise the following steps,
Step (1), management board receives host computer test command, resolves host computer test command；
Step (2), management board, according to the needs of test command, distinguishing tests type, selects to transmit data during high-speed bus transmission
It is that multimode amplitude or instantaneous point data are to corresponding intelligent plate；
Step (3), management board, according to the wire data type selected, carries out data calculating；
(31) when intelligent plate is when receiving multimode amplitude, and the multimode amplitude of management board output includes number of states, state width
Value, each state retention time, quality position facilities；
(32) when SV and GOOSE common network transmits, the multimode way of output of the similar analog quantity of GOOSE message is determined；
(33) when intelligent plate is when receiving instantaneous point data, and management board sets rated value in advance, and ratio utilizes and tables look-up and shift
Quickly realize, for exporting instantaneous point ratio to corresponding intelligent plate；
Step (4), calculated data are packed by management board, are sent to corresponding intelligent plate by high-speed bus；
Step (5), intelligent plate carries out message and receives and resolve, by optical fiber interface thereon with corresponding the data after packing
Digital protection test device is connected, and is digitized the test of protection tester；
Step (6), management board realizes the data synchronism output to each piece of intelligent plate, and receiving area by PPS impulsive synchronization module
Manage the feedback message of each piece of intelligent plate；
Step (7), if intelligent plate uses multimode amplitude transmission data, intelligent plate obtains starting life by CAN fieldbus
After order, the PPS rising edge of a pulse that next PPS impulsive synchronization module produces, start and send multimode amplitude data message；If it is intelligent
When plate uses instantaneous point transmission data, after intelligent plate obtains starting order by CAN fieldbus, according to transient data,
Send datagram in real time to management board.
The multiplexer channel transmission side of the test system of described digital protection test device the most according to claim 3
Method, it is characterised in that: (33), when intelligent plate is when receiving instantaneous point data, use every frame to transmit the side of two instantaneous points simultaneously
Formula, once present frame message is made mistakes, and utilizes frame message last time to remedy, if two continuous frames message is made mistakes, is immediately terminated test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610573958.9A CN106199273B (en) | 2016-07-20 | 2016-07-20 | A kind of test macro and multiplexer channel transmission method of digital protection test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610573958.9A CN106199273B (en) | 2016-07-20 | 2016-07-20 | A kind of test macro and multiplexer channel transmission method of digital protection test device |
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| CN106199273A true CN106199273A (en) | 2016-12-07 |
| CN106199273B CN106199273B (en) | 2019-01-08 |
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2016
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Patent Citations (6)
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| CN202583354U (en) * | 2012-04-28 | 2012-12-05 | 国电南瑞（北京）控制系统有限公司 | Network type power quality on-line monitoring device |
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Effective date of registration: 20170425 Address after: High road high tech Zone of Nanjing City, Jiangsu Province, No. 20 210061 Applicant after: NARI Technology Development Co., Ltd. Applicant after: State Grid Corporation of China Applicant after: State Grid Zhejiang Electric Power Company Applicant after: SGCC NARI Nanjing Control System Co., Ltd. Applicant after: Nanjing Nari Co., Ltd. Address before: High road high tech Zone of Nanjing City, Jiangsu Province, No. 20 210032 Applicant before: NARI Technology Development Co., Ltd. Applicant before: SGCC NARI Nanjing Control System Co., Ltd. |
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