CN203025257U - Relay protection automatic test system based on IEC61850 standard - Google Patents
Relay protection automatic test system based on IEC61850 standard Download PDFInfo
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- CN203025257U CN203025257U CN 201220525678 CN201220525678U CN203025257U CN 203025257 U CN203025257 U CN 203025257U CN 201220525678 CN201220525678 CN 201220525678 CN 201220525678 U CN201220525678 U CN 201220525678U CN 203025257 U CN203025257 U CN 203025257U
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Abstract
The utility model discloses a relay protection automatic test system based on the IEC61850 standard. The relay protection automatic test system comprises a data processing unit DSP which is provided with a software system through a network port. The data processing unit DSP is connected with a front-end output unit FPGA through a data bus, and used to perform IEC61850-9-2 message output and GOOSE message output through the front-end output unit FPGA. The front-end output unit FPGA is mainly composed of a data encapsulation module encap and an Ethernet physical layer PHY, and an Ethernet physical layer PHY and data encapsulation module encap data exchange path is provided between the data encapsulation module encap and the Ethernet physical layer PHY through a MAC module. In the full duplex working mode of 100M data rate, the data encapsulation module encap is used to encapsulate the data sent from the DSP into the IEC61850-9-2 data and GOOSE message formats and then send to the MAC, the MAC performs CRC check at first and attaches the check result to the tail; and then a lead code and a frame delimiter are added, and then the data is forwarded to the PHY through a MII interface.
Description
Technical field
What the present invention relates to is a kind of Relay Protection Automatic Testing System based on the IEC61850 standard.
Background technology
Building intelligent grid in electric system is that national grand strategy is disposed, and digital transformer substation is the important step that intelligent grid is built, and in its station, functional unit and communication network are followed the IEC61850 standards system.IEC61850 is as the general international standard of digital transformer substation, wide popularization and application has at home been brought huge opportunity to digital transformer substation, information sharing in can standing easily by the IEC61850 standard is promoted the function of equipment greatly; The multifunctional intellectual electronic equipment (IED) that develops, meets IEC61850 rapidly of the cyber-net communication technology and a large amount of accesses of electronic mutual inductor have all improved the operational efficiency of transformer substation system greatly, have promoted the development of digital transformer substation; Also brought new challenge to relay protection test in the time of transformer substation system generation major transformation; digital transformer substation observing and controlling measuring instrument is different from conventional instrument; a physical equipment as the station communication network; its data come from the packet that station inner fiber Ethernet sends; larger change has all occured in the modes such as the design of information self property, transmission medium, transmission mode and protective relaying device, structure, operation; traditional protection method of testing is no longer applicable, in the urgent need to a kind of digital transforming plant protecting test macro that adapts to the IEC61850 standard.Therefore, the method for testing of further investigation digital relay protection is developed new protective device test macro and is had important practical significance.
Digital protective relay can be realized more complicated protection philosophy; reliable in action; adjustment and maintenance is simple, does not need to spend the mechanical part of a large amount of time debugging relays as electromagnetic type and the protection of rectification model, makes vast relay protection personnel be emancipated from hard work.But traditional method of testing has still been continued to use in the on-the-spot test of protective relaying device electric parameters acting characteristic, and still manually-operated basically, manually-operated have its limitation surname after all.The development of Microcomputer Protection tester technology provides a kind of advanced person's testing tool for relay protection test work.The computing of microcomputer type protection tester appliance computer realizes complicated test signal, and is lightweight, easy to use, makes the protective device measuring technology that qualitative leap arranged.Yet although testing tool has adopted digitizing, most of testers just are used as computer-controlled testing source to microcomputer type protection tester, the test manual operations, and test result is by manual record; The inspection procedure of the relay protection management department issue of various places is also still take the manually operated alternative as main.
In recent years, the digital protective relay technical development was very fast, and new protection producer, new model protective device, new protection philosophy constantly occur.This present situation has increased the difficulty that the protection tester skillfully grasps protective device, and the test job of protective device has been brought very large impact.On the other hand, economic development requires to improve power supply quality, shortens the equipment power off time, the time shorten of the test that keeps the scene intact, and the protection test mass requires to improve.All this kind, contradictory elements are more and more.In the new situation, exploring a kind of new standardization, automatic automatic test technology, improve the check work efficiency, guarantee quality inspection, is operation power department problem in the urgent need to address.
Summary of the invention
The object of the invention is to overcome the deficiency that prior art exists, and a kind of Relay Protection Automatic Testing System based on the IEC61850 standard is provided.
The objective of the invention is to complete by following technical solution, it includes one by the data processing unit DSP of network interface with software systems, this data processing unit DSP is connected with front end output unit FPGA by data bus, and carries out 9-2 message outputs and the output of GOOSE message by described front end output unit FPGA.
Described front end output unit FPGA mainly is comprised of data encapsulation module encap and ethernet physical layer PHY, provide ethernet physical layer PHY and data encapsulation module encap to carry out the path of exchanges data by a MAC module between the two, under 100M data rate full duplex mode of operation, the data encapsulation that data encapsulation module encap comes DSP becomes IEC61850-9-2 or GOOSE data to issue MAC, at first MAC carries out CRC check, and check results is attached to afterbody; Then add lead code and frame delimiter, then be transmitted to PHY by the MII interface.
the present invention is based on the DSP+FPGA hardware platform, when strong on the basis of multiple task operating system Linux, for IEC61850 communication and all-digital protection test related needs, by scheduling between reasonable distribution task priority and task and communicate by letter, can realize well ethernet link layer communication, the sampling of analog quantity electric current and voltage signal and conversion, meet the hard real-time functions such as sampled value data framing that IEC61850 requires and transmission. in order to complete closed test, requirement according to IEC61850, this test macro also possesses reception, resolve the GOOSE trip signal that protection equipment sends, and the circuit breaker position contact point signal is encoded, framing, send GOOSE switching value message to the function of totally digitilized protective relaying device etc.
Description of drawings
Fig. 1 is the block diagram of system of the present invention.
Fig. 2 is fpga chip structural drawing of the present invention.
Fig. 3 is MAC module data path schematic diagram of the present invention.
Embodiment
The present invention will be described in detail below in conjunction with accompanying drawing: shown in Figure 1, the present invention includes one by the data processing unit DSP of network interface with software systems, this data processing unit DSP is connected with front end output unit FPGA by data bus, and carries out the output of IEC61850-9-2 message and the output of GOOSE message by described front end output unit FPGA.
Shown in Fig. 2,3, described front end output unit FPGA mainly is comprised of data encapsulation module encap and ethernet physical layer PHY, provide ethernet physical layer PHY and data encapsulation module encap to carry out the path of exchanges data by a MAC module between the two, under 100M data rate full duplex mode of operation, the data encapsulation that data encapsulation module encap comes DSP becomes IEC61850-9-2 or GOOSE data to issue MAC, at first MAC carries out CRC check, and check results is attached to afterbody; Then add lead code and frame delimiter, then be transmitted to PHY by the MII interface.
Construction along with intelligent substation; electronic mutual inductor, digital relay protection and the digitizers such as measure and control device, intelligent breaker progressively practical; between process layer and wall, a large amount of cables connects and will be replaced by the optical fiber communication of Ethernet, and this is the change of Substation Automation System.The visual plant that relay-protection tester is examined surely as protective relaying device in transformer station and power plant, the test request of digital protection is satisfied in the development that also must comply with intelligent substation.Digital protection test instrument digital sampled signal directly outputs to the digital protection device that connects, and protective device GOOSE information directly feeds back to the people's that connects digital protection test instrument simultaneously, completes whole test job by the digital protection tester.
Embodiment:
Each functional module of testing software in the past is separate, can not open simultaneously and move, and function is divided to be had overlappedly, and each module has comprised the repertoire of user interface, communication interface, output supervision, alerting signal.New software configuration should be divided into testing scheme and functional module designing two portions, and testing scheme has only comprised the modules common part.Function module design becomes the dynamic link library mode, needs according to test function, is divided into multiple different little module.Because the function of dividing is very thin, the function of each module is just relatively simple, and interface parameters seldom, and is easy to use.Testing scheme is operation platform, is in all the time open mode, the test function module is called in the dynamic link library mode, can open and close at any time, and is simple in structure, stable.The test function module also should comprise the modules such as hand inspection input as a result, operation indicating, safety practice, wiring diagram except electric parameters test function commonly used, can realize the electric parameters of on-the-spot test and the test function management that non electrical quantity checks.
Testing scheme moves with the template way calling functional modules.Template is that module is called the formatted file with parameter-definition.Different test functions is by different template file definition.The operational process of testing software is exactly the process of testing scheme template.
Based on the testing scheme mould plate technique, can the tested tissue flow process, the definition method of testing is calculated test parameter, realizes automatic testing process.In a testing scheme template file; can define whole test functions and the test event of protective device; can also give the operation indicating of tester's necessity; during the template operation; carry out test by preset program automatically and continuously; can also automatically calculate outcome evaluation, point out for assessment result.
Test result for protective device records by test report.Common test instrument for microcomputer-based relay protection software can only provide general form, can't satisfy the call format of various model protections and different regions.In most cases now, be all that the tester first is converted to the WORD form with the form report of tester, and then editor, perhaps test findings is recorded in the paper using notes, after end to be tested, then the arrangement of finding time.If can directly generate the test report of the own form of user directly after completing test, just can reduce tester's labour intensity, eliminate the time delays that arranges test report, avoid mistake.The report template technology can define user's oneself form report, and the filling-in position of definition test result by the common definition of test template and report template, can after off-test, generate the test report that the user makes form by oneself at once automatically.
Based on above-mentioned requirements, the relay-protection tester hardware and software platform that design is applicable is the basis of realizing that protective relaying device is tested automatically, could realize on this basis the goal in research that requires.
Concrete steps are:
(1) research and analyse technical specification, Commissioning programme, schematic diagram, the wiring diagram of the protective device of certain model; deeply understand pilot project, test method, the technical requirement of regulation of the inspection procedure of this model protective device; select suitable test function module; test parameter is set; the test protective device obtains correct test result.
(2) according to project and the test procedure of inspection procedure, work out testing scheme.Testing scheme has defined needed test function module.
(3) use the testing scheme that edits, the debugging protective device.The test result of all items all should meet the inspection procedure requirement.
(4) add in test template operation indicating, pressing plate throw move back, the information such as safety notice, test wiring diagram, help tester's proper operation.
(5) add the hand inspection project of non electrical quantity in testing scheme, can provide with the text prompt mode information such as test event, test wiring, method of testing, technical requirement, instruct the tester to complete test, be completed and result can be kept in the test template of specified path automatically, and whether the automatic decision test result is qualified, and test result has comprised peace fault reason information, worker information.
Claims (2)
1. Relay Protection Automatic Testing System based on the IEC61850 standard; it is characterized in that it includes a data processing unit DSP; this data processing unit DSP is connected with front end output unit FPGA by data bus, and carries out the output of IEC61850-9-2 message and the output of GOOSE message by described front end output unit FPGA.
2. the Relay Protection Automatic Testing System based on the IEC61850 standard according to claim 1, is characterized in that described front end output unit FPGA mainly is comprised of ethernet physical layer PHY.
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| CN 201220525678 CN203025257U (en) | 2012-10-15 | 2012-10-15 | Relay protection automatic test system based on IEC61850 standard |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103439592A (en) * | 2013-06-27 | 2013-12-11 | 国家电网公司 | Method for intelligently testing intelligent substation on site |
| CN103744422A (en) * | 2014-01-06 | 2014-04-23 | 国家电网公司 | Automatic testing method for relay protection device based on IEC61850 standard |
| CN107707028A (en) * | 2017-10-20 | 2018-02-16 | 国网天津市电力公司 | Suitable for the configuration file management-control method of intelligent substation bus differential protection enlarging debugging |
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2012
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103439592A (en) * | 2013-06-27 | 2013-12-11 | 国家电网公司 | Method for intelligently testing intelligent substation on site |
| CN103439592B (en) * | 2013-06-27 | 2016-12-28 | 国家电网公司 | A kind of intelligent substation site intelligent method of testing |
| CN103744422A (en) * | 2014-01-06 | 2014-04-23 | 国家电网公司 | Automatic testing method for relay protection device based on IEC61850 standard |
| CN103744422B (en) * | 2014-01-06 | 2016-04-06 | 国家电网公司 | A kind of to the protective relaying device automatic test approach based on IEC61850 standard |
| CN107707028A (en) * | 2017-10-20 | 2018-02-16 | 国网天津市电力公司 | Suitable for the configuration file management-control method of intelligent substation bus differential protection enlarging debugging |
| CN107707028B (en) * | 2017-10-20 | 2020-07-07 | 国网天津市电力公司 | Configuration file management and control method suitable for bus differential protection extension debugging of intelligent substation |
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Granted publication date: 20130626 Termination date: 20191015 |