CN206573708U - A kind of line-selected earthing device test platform played back based on ADPSS failure wave-recordings - Google Patents
A kind of line-selected earthing device test platform played back based on ADPSS failure wave-recordings Download PDFInfo
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- CN206573708U CN206573708U CN201720246935.7U CN201720246935U CN206573708U CN 206573708 U CN206573708 U CN 206573708U CN 201720246935 U CN201720246935 U CN 201720246935U CN 206573708 U CN206573708 U CN 206573708U
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Abstract
The utility model discloses a kind of line-selected earthing device test platform played back based on ADPSS failure wave-recordings, failure wave-recording playback simulation model is set up using ADPSS analogue systems, reproduce the complicated operating condition of earth fault, the test signal of real-time voltage and electric current is sent to by physical interface case by optical fiber or Ethernet, the signal input part connection of physical interface case analog output and power amplifier, the amplified simultaneous transmission of voltage and current signal is to electricity recorder analyser and by checking device, electricity recorder analyser is obtained using work station and by the recorded wave file of checking device and route selection result, enter Mobile state test to Small Electric Current Earthing And Routing Device.The utility model disobeys the accuracy for being disinclined to power distribution network simulation parameters, it is therefore intended that install before line selection apparatus, the simple analog for carrying out live different type failure environment for Small Electric Current Earthing And Routing Device is tested, the adaptability of analytical equipment route selection function.
Description
Technical field
The utility model is related to a kind of line-selected earthing device test platform played back based on ADPSS failure wave-recordings, belongs to small
The technical field of current earthing route selection test.
Background technology
China's low and medium voltage distribution network is generally run using small current neutral grounding mode, and single-phase earthing is most normal in mesolow distribution
The failure seen, power grid operation personnel are had a strong impact on power supply reliability, increased using the method choice faulty line manually operated a switch
Occurs the risk that people and animals get an electric shock with device damage accident.Small Electric Current Earthing And Routing Device is that single-phase earthing occurs for a kind of quick judgement
The protection device of faulty line, the equipment is applied to isolated neutral or through resistance, arc suppression coil earthing system, for electric power
The electric power system of the large factories and mines enterprises such as transformer station, power plant, power station and the chemical industry of system, oil recovery, metallurgy, coal, railway.
The Small Electric Current Earthing And Routing Device of low and medium voltage distribution network installation and operation is related to that producer is various, route selection technology is various, production
Moral character can be uneven with route selection accuracy rate.In addition, lacking effective inspection always for power distribution network Small Electric Current Earthing And Routing Device
Test means, power supply enterprise in product type selection without according to can according to, products characteristics can not be accurately held, cause route selection effect not good
One major reason.
The check test platform of Small Electric Current Earthing And Routing Device is set up, related production is carried out according to effective test method
The detection experiment of product, the guidance foundation for selecting Small Electric Current Earthing And Routing Device to provide science for enterprise is to ensure safe and reliable power supply
Effective means.
Utility model content
The utility model proposes a kind of line-selected earthing device test platform played back based on ADPSS failure wave-recordings, purpose
It is before installation line selection apparatus, carries out the simple analog of live different type failure environment for Small Electric Current Earthing And Routing Device
Test, the adaptability of analytical equipment route selection function.
To achieve the above object, the utility model is adopted the following technical scheme that：It is a kind of based on ADPSS failure wave-recordings play back
Line-selected earthing device test platform, including all-digital real-time simulation system of power system ADPSS, physical interface case, power amplification
Device, electricity recorder analyser, work station and tested Small Electric Current Earthing And Routing Device, it is characterised in that：Described ADPSS emulation system
System and physical interface connect, the signal input part connection of physical interface case analog output and power amplifier；Power amplification
The signal output part of device is connected with tested Small Electric Current Earthing And Routing Device all the way, another road and the connection of electricity recorder analyser；Quilt
Examine Small Electric Current Earthing And Routing Device output signal and physical interface case connection, electricity recorder analyser and by checking device respectively with work
Make station connection.
The interface of described physical interface case is that Ethernet interface or optical fiber interface are connected.
Described power amplifier is digital, integrated voltage and current power model.
Described electricity recorder analyser communication interface is Ethernet interface.
Compared with the prior art, the beneficial effects of the utility model are：
The complicated fortune of true reappearance earth fault is capable of in recorded wave file playback of the utility model based on ADPSS analogue systems
Row operating mode, covers the various low current grounding types that power distribution network may occur, not by power system simulation model parameter substantially
Real-time voltage and current signal before and after failure, is directly directly inputted to by checking device, realizes to small by the influence of accuracy
The dynamic detection of current earthing line selection apparatus.
Brief description of the drawings
Fig. 1 is Small Electric Current Earthing And Routing Device test platform schematic diagram of the present utility model.
Embodiment
It is described in further detail below in conjunction with the accompanying drawings.
A kind of small current neutral grounding played back based on ADPSS failure wave-recordings with reference to described in Fig. 1 illustrates present embodiment
Line selection apparatus test platform, including all-digital real-time simulation system of power system ADPSS, physical interface case, power amplifier, electricity
Recorder analyser, work station and tested Small Electric Current Earthing And Routing Device are measured, wherein ADPSS analogue systems are used to play back live ground connection
Fault recorder data, physical interface case, physical interface case analog output and work(are sent to by the test signal of voltage and current
The signal input part connection of rate amplifier, the amplified simultaneous transmission of voltage and current signal is to electricity recorder analyser and tested dress
Put, faulty line is judged according to itself algorithm by checking device and route selection trip signal is provided, work station obtains electricity record analysis
Instrument and by the recorded wave file of checking device and route selection result.
The interface of further physical interface case connects for serial ports, and serial ports connection reliability is high, and interface is connected firmly, is difficult
Loosen.
Further power amplifier is digital, and digital amplifier precision is high, is difficult to be disturbed.
Further electricity recorder analyser communication interface is RS232 interfaces, and serial ports connection reliability is high, interface connection jail
Gu, it is difficult to loosen.
Experiment is followed the steps below during experiment：
（1）According to the live earth fault recorded wave file of earth fault type classification collection power distribution network, type testing case is formed
Example storehouse；
（2）Build the Small Electric Current Earthing And Routing Device test platform based on ADPSS analogue systems；
（3）Failure wave-recording playback simulation model is set up using ADPSS analogue systems, earth fault complexity operation work is reproduced
Condition；
（4）Failure wave-recording file in type testing case library is played back successively, to carrying out route selection functional test by checking device.
The step（1）, the live earth fault recorded wave file data of collected power distribution network are analyzed, according to gold
Attribute ground connection, non-metal earthing, arc grounding, intermittent ground connection, high resistance ground, multipoint earthing, circuit developing fault etc.
Classification carries out taxonomic revision to fault recorder data, marks the circuit zero-sequence current and busbar voltage passage under various operating modes,
Faulty line is selected, type testing case library is formed.
The step（2）, the Small Electric Current Earthing And Routing Device test platform based on ADPSS analogue systems is built, such as Fig. 1 institutes
Show.
a）The test signal of real-time voltage and electric current is sent to physics by optical fiber or Ethernet and connect by ADPSS analogue systems
Mouth case；
b）Physical interface case analog output is connected by the signal input part of cable and power amplifier；
c）The parallel connection of PA signal output end accesses electricity recorder analyser and by checking device；
d）Electricity recorder analyser and work station is connected by checking device respectively.
The step（3）, the emulation mould of failure wave-recording playback is built on the electromagnetic transient simulation platform of ADPSS systems
Type, passes through the complicated operating condition of data readback function true reappearance earth fault.
The step（4）, the failure wave-recording file in type testing case library is played back successively, and every group of experiment should ensure that test
Signal output is correct, obtains electricity recorder analyser and by the recorded wave file of checking device and route selection result using work station, checks
Line selection apparatus failure wave-recording and ground connection memory function, and every result of the test is recorded, to be installed put starts next group after signal return
Experiment.
Embodiment of the present utility model is described above-mentioned combination accompanying drawing, but not the utility model is protected
The limitation of scope is protected, the various modifications made on the basis of technical solutions of the utility model or deformation are still of the present utility model
Within protection domain.
Claims (4)
1. a kind of line-selected earthing device test platform played back based on ADPSS failure wave-recordings, including power system are digital in real time
Analogue system ADPSS, physical interface case, power amplifier, electricity recorder analyser, work station and tested small current earthing wire-selecting
Device, it is characterised in that：Described ADPSS analogue systems and physical interface connect, physical interface case analog output and work(
The signal input part connection of rate amplifier；The signal output part of power amplifier connects with tested Small Electric Current Earthing And Routing Device all the way
Connect, another road and the connection of electricity recorder analyser；Tested Small Electric Current Earthing And Routing Device output signal and the connection of physical interface case,
Electricity recorder analyser and it is connected respectively with work station by checking device.
2. a kind of line-selected earthing device test platform played back based on ADPSS failure wave-recordings according to claim 1, it is special
Levy and be：The interface of described physical interface case is that Ethernet interface or optical fiber interface are connected.
3. a kind of line-selected earthing device test platform played back based on ADPSS failure wave-recordings according to claim 1, it is special
Levy and be：Described power amplifier is digital, integrated voltage and current power model.
4. a kind of line-selected earthing device test platform played back based on ADPSS failure wave-recordings according to claim 1, it is special
Levy and be：Described electricity recorder analyser communication interface is Ethernet interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720246935.7U CN206573708U (en) | 2017-03-14 | 2017-03-14 | A kind of line-selected earthing device test platform played back based on ADPSS failure wave-recordings |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720246935.7U CN206573708U (en) | 2017-03-14 | 2017-03-14 | A kind of line-selected earthing device test platform played back based on ADPSS failure wave-recordings |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106707218A (en) * | 2017-03-14 | 2017-05-24 | 贵州电网有限责任公司电力科学研究院 | Grounding line selection device test platform and method based on ADPSS fault recording and playback |
| CN108197822A (en) * | 2018-01-24 | 2018-06-22 | 贵州电网有限责任公司 | A kind of distribution network fault line selection adaptability teaching decision-making technique |
| CN108983135A (en) * | 2018-05-17 | 2018-12-11 | 济南置真电气有限公司 | A method of for verifying low-current ground fault line selection algorithm accuracy rate |
-
2017
- 2017-03-14 CN CN201720246935.7U patent/CN206573708U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106707218A (en) * | 2017-03-14 | 2017-05-24 | 贵州电网有限责任公司电力科学研究院 | Grounding line selection device test platform and method based on ADPSS fault recording and playback |
| CN108197822A (en) * | 2018-01-24 | 2018-06-22 | 贵州电网有限责任公司 | A kind of distribution network fault line selection adaptability teaching decision-making technique |
| CN108197822B (en) * | 2018-01-24 | 2022-06-21 | 贵州电网有限责任公司 | Power distribution network fault line selection adaptability evaluation decision method |
| CN108983135A (en) * | 2018-05-17 | 2018-12-11 | 济南置真电气有限公司 | A method of for verifying low-current ground fault line selection algorithm accuracy rate |
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