CN208335507U - A kind of relay protection teaching experiment simulation platform - Google Patents
A kind of relay protection teaching experiment simulation platform Download PDFInfo
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- CN208335507U CN208335507U CN201721783706.5U CN201721783706U CN208335507U CN 208335507 U CN208335507 U CN 208335507U CN 201721783706 U CN201721783706 U CN 201721783706U CN 208335507 U CN208335507 U CN 208335507U
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Abstract
The utility model discloses a kind of relay protection teaching experiment simulation platforms; including model emulation and data monitoring host computer, general real-time simulator UREP, Ethernet switch, protective relaying device and power cabinet; host computer is connected to general real-time simulator UREP by Ethernet switch; the AO mouth of general real-time simulator UREP is connected to power cabinet, and the DI mouth of power cabinet and general real-time simulator UREP are connected to protective relaying device.The utility model relay protection teaching experiment simulation platform avoids simple software emulation; reduce teaching experiment cost again simultaneously; and experimenter can also be allowed to participate in developing and utilizing protective relaying device during teaching experiment, have to the culture of experimenter's knowledge applying ability and creativity consciousness and greatly helps.
Description
Technical field
The utility model belongs to relay protection of power system simulated teaching technical field, and in particular to a kind of relay protection religion
Learn experiment simulation platform.
Background technique
In recent years, China's power system development is rapid, and power grid scale constantly expands, and the range being related to and influence are increasingly
Extensively, safe operation of power system becomes more and more important.Under the conditions of nature or human factor in electric system certain point or
Person's several points will be in failure or abnormal operating status, in this case if protective relaying device can be promptly
It monitors the faint variation occurred in electric system, and can be operating normally, abort situation will be reduced in this way to entire power train
The influence of system, to guarantee the stability of electric system.Simultaneously as direct current transportation, generation of electricity by new energy mode access power grid, newly
Power grid architecture form the selectivity of relay protection, quick-action, sensitivity, reliability are put forward new requirements.
Electric system at present mainly uses computer to carry out relay protection setting calculation work, and in recent years, adaptive setting is soft
Part constantly improve, and has for relay protection setting calculation and greatly helps.It is various but with the access of generation of electricity by new energy mode
There is certain limitations again for adaptive setting program, and in some cases, the definite value that adaptive setting software provides may be closed not enough
Reason, increases security risk for electric system in this way, on the other hand in view of power industry is in entire national economy
Critical role, avoid to system run cause unnecessary harm, it is impossible to tested in real system, thus into
It is necessary to build electric power system model to carry out simulating, verifying after row relay protection setting.
It carries out pure software emulation currently with MATLAB or uses relay protection synthesis experiment platform to be that domestic relay is protected
Protect the common method of experimental teaching.For pure software for using MATLAB emulates, student is it will be appreciated that basic relay is protected
Principle and setting method are protected, but subjective understanding is lacked for relay protection setting and line, is encountering practical relay protection
It still has no way of doing it when device；And for using relay protection synthesis experiment platform, relay protection experimental platform is generally adopted
With enclosed construction, in experimental teaching, student only needs according to the intrinsic template wiring of experiment porch, and the corresponding parameter that carries out is set
It sets, experimenter can not but understand experimental platform system internal structure, protection act sequence and signal processing flow.It is above two
Mode student can not effectively combine primary, second loop return wiring and effect, therefore experiment effect is limited.
Summary of the invention
Technical problem to be solved by the utility model is: a kind of relay protection teaching experiment simulation platform is provided, to solve
Problems of the prior art.
The technical solution that the utility model is taken are as follows: a kind of relay protection teaching experiment simulation platform, including model emulation
It is upper with data monitoring host computer, general real-time simulator UREP, Ethernet switch, protective relaying device and power cabinet
Machine is connected to general real-time simulator UREP by Ethernet switch, and the AO mouth of general real-time simulator UREP is connected to power
The DI mouth of cabinet, power cabinet and general real-time simulator UREP are connected to protective relaying device.
Host computer 1 and protective relaying device 3 are placed on experimental bench, general real-time simulator 5, Ethernet switch 4, function
Rate cabinet 6 is installed in cabinet, and I/O board 7 is also equipped in cabinet.
I/O board includes AI/AO board and DI/DO board.
The utility model has the beneficial effects that compared with prior art, the utility model relay protection teaching experiment simulation is flat
Platform avoids simple software emulation, while reducing teaching experiment cost again, and can also allow during teaching experiment
Experimenter participates in developing and utilizing protective relaying device, has pole to the culture of experimenter's knowledge applying ability and creativity consciousness
The earth helps.
Detailed description of the invention
Fig. 1 is the wiring diagram in kind of the utility model；
Fig. 2 is the signal flow schematic diagram of the utility model；
Fig. 3 is the power system modeling interface of the utility model；
Fig. 4 is the utility model power system modeling use-case；
Fig. 5 is the utility model relay protection of power system modeling use-case.
Specific embodiment
With reference to the accompanying drawing and the utility model is described further in specific embodiment.
Embodiment 1: as Figure 1-Figure 5, a kind of relay protection teaching experiment simulation platform, including host computer, general reality
When emulator UREP, Ethernet switch, protective relaying device and power cabinet, host computer be connected to by Ethernet switch
The AO mouth of general real-time simulator UREP, general real-time simulator UREP are connected to power cabinet, power cabinet and it is general in real time
The DI mouth of emulator UREP is connected to protective relaying device.
Host computer 1, the display 2 being connected with host computer and protective relaying device 3 are placed on experimental bench, general imitative in real time
True device 5, Ethernet switch 4, power cabinet 6 are installed in cabinet, and I/O board is also equipped in cabinet.
I/O board includes AI/AO board 7 and DI/DO board 8.
Real-time simulator is the industrial personal computer based on xPCtarget technology, has the fortune for calculating in real time, simulating electric system
The function of row, output real-time simulation data, monitoring from measurement and Control Equipment for Relay Protection feedback information and real-time update emulation data,
And it host computer can be transferred to carries out image and data and show.
AI/AO board transmits route voltage and current analog signal of electric system, and board one end connection is imitative in real time
True device, and then host computer is connected, realize the display of voltage and current equivalent；Other end connection driving cabinet, and then connected with computer
Protection supervisory equipment, to realize the method and transmitting of voltage and current equivalent.
DI/DO board one end connected with computer protection supervisory equipment, for receiving the open circuit that microcomputer protecting controller is sent
The control of device on-off；The other end connects real-time simulator, and is transmitted to graphical user display and control interface through Ethernet switch
And in route architecture model of electric system, and then complete display and control function.
From power cabinet carries out real-time simulator UREP from the electric current and voltage signal that route of electric system extracts
Reason, is wired to protective relaying device, and microcomputer protecting controller can export and through power cabinet according to AO board
The voltage and current data of processing are sent to DI board after accurate quickly judgement, then by trip signal, to be uploaded to emulation
Device.
A kind of emulation mode of relay protection teaching experiment simulation platform, this method are；Host computer passes through Ethernet exchanging
Machine and real-time simulator carry out data communication, and experimenter builds electric system primary circuit in host computer, setting breaker,
Abort situation and fault type, analogue simulation electric system various faults state, in experimentation host computer by experimental model and
Data are transferred to display and are shown.
Power system modeling emulation uses MATLAB/Simulink mathematics library interface, wraps in MTALAB/Simulink
A large amount of control function and power system component are contained, user selects corresponding component to realize function according to their needs, and can
Complete off-line simulation, the correctness of confirmatory experiment principle.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replacement, it should be covered within the scope of the utility model, therefore, the protection scope of the utility model should be with the power
Subject to the protection scope that benefit requires.
Claims (3)
1. a kind of relay protection teaching experiment simulation platform, it is characterised in that: including model emulation and data monitoring host computer, lead to
With real-time simulator UREP, Ethernet switch, protective relaying device and power cabinet, host computer is connected by Ethernet switch
It is connected to general real-time simulator UREP, the AO mouth of general real-time simulator UREP is connected to power cabinet, power cabinet and general
The DI mouth of real-time simulator UREP is connected to protective relaying device.
2. a kind of relay protection teaching experiment simulation platform according to claim 1, it is characterised in that: host computer (1) and
Protective relaying device (3) is placed on experimental bench, and general real-time simulator (5), Ethernet switch (4), power cabinet (6) are equal
It is mounted in cabinet, I/O board is also equipped in cabinet.
3. a kind of relay protection teaching experiment simulation platform according to claim 2, it is characterised in that: I/O board includes
AI/AO board (7) and DI/DO board (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721783706.5U CN208335507U (en) | 2017-12-19 | 2017-12-19 | A kind of relay protection teaching experiment simulation platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721783706.5U CN208335507U (en) | 2017-12-19 | 2017-12-19 | A kind of relay protection teaching experiment simulation platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208335507U true CN208335507U (en) | 2019-01-04 |
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ID=64788177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721783706.5U Active CN208335507U (en) | 2017-12-19 | 2017-12-19 | A kind of relay protection teaching experiment simulation platform |
Country Status (1)
| Country | Link |
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| CN (1) | CN208335507U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107845304A (en) * | 2017-12-19 | 2018-03-27 | 贵州大学 | A kind of relay protection teaching experiment simulation platform and its emulation mode |
| CN110351973A (en) * | 2019-08-08 | 2019-10-18 | 广东电网有限责任公司 | A kind of protective relaying device single machine emulation cabinet |
-
2017
- 2017-12-19 CN CN201721783706.5U patent/CN208335507U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107845304A (en) * | 2017-12-19 | 2018-03-27 | 贵州大学 | A kind of relay protection teaching experiment simulation platform and its emulation mode |
| CN110351973A (en) * | 2019-08-08 | 2019-10-18 | 广东电网有限责任公司 | A kind of protective relaying device single machine emulation cabinet |
| CN110351973B (en) * | 2019-08-08 | 2024-01-23 | 广东电网有限责任公司 | Relay protection device single-machine simulation cabinet |
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