CN106707218A - Grounding line selection device test platform and method based on ADPSS fault recording and playback - Google Patents
Grounding line selection device test platform and method based on ADPSS fault recording and playback Download PDFInfo
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- CN106707218A CN106707218A CN201710151498.5A CN201710151498A CN106707218A CN 106707218 A CN106707218 A CN 106707218A CN 201710151498 A CN201710151498 A CN 201710151498A CN 106707218 A CN106707218 A CN 106707218A
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- 238000004088 simulation Methods 0.000 claims abstract description 18
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- 230000005611 electricity Effects 0.000 claims description 18
- 238000010998 test method Methods 0.000 claims description 8
- 238000002474 experimental method Methods 0.000 claims description 5
- 230000006870 function Effects 0.000 claims description 4
- 238000011990 functional testing Methods 0.000 claims description 3
- 230000006386 memory function Effects 0.000 claims description 3
- 229910052755 nonmetal Inorganic materials 0.000 claims description 3
- 230000001052 transient effect Effects 0.000 claims description 3
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- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
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Abstract
The invention discloses a grounding line selection device test platform and method based on ADPSS fault recording and playback, and the method comprises the steps: building a fault recording and playback simulation model through an ADPSS simulation system, and enabling grounding fault complex operation conditions to reappear; transmitting the real-time voltage and current test signals to a physical interface box through an optical fiber or an Ethernet, wherein the simulation output end of the physical interface box is connected with a signal input end of a power amplifier; transmitting the voltage and current signals to an electric quantity recording analyzer and a detected device at the same time after the voltage and current signals are amplified; obtaining a record file and a line selection result of the electric quantity recording analyzer and the detected device through a work station, and carrying out the dynamic testing of a small-current grounding line selection device. The method does not depend on the precision of parameters of a distribution network simulation model, aims at carrying out simple simulation testing of different types of onsite fault environments for the small-current grounding line selection device before a line selection device is installed, and analyzes the adaptability of a line selection function of the device.
Description
Technical field
The present invention relates to a kind of line-selected earthing device test platform based on the playback of ADPSS failure wave-recordings and method, belong to
The technical field of small current earthing wire-selecting 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 have a strong impact on power supply reliability using the method choice faulty line manually operated a switch, and increase
There is the risk that people and animals get an electric shock with device damage accident.Small Electric Current Earthing And Routing Device is that a kind of quick judgement occurs single-phase earthing
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 the transformer station of system, power plant, power station and chemical industry, 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, produces
Moral character can be uneven with route selection accuracy rate.Additionally, 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 on driving birds is not good
One major reason.
The check test platform of Small Electric Current Earthing And Routing Device is set up, related producing is carried out according to effective test method
The detection experiment of product, for the guidance foundation that enterprise's selection Small Electric Current Earthing And Routing Device provides science is to ensure safe and reliable power supply
Effective means.
The content of the invention
The present invention proposes a kind of line-selected earthing device test platform based on the playback of ADPSS failure wave-recordings and method, mesh
Be the simple mould for carrying out live different type failure environment before installing line selection apparatus for Small Electric Current Earthing And Routing Device
Intend test, the adaptability of analytical equipment route selection function.
To achieve the above object, the present invention is adopted the following technical scheme that:A kind of ground connection based on the playback of ADPSS failure wave-recordings
Line selection apparatus test platform, including all-digital real-time simulation system of power system ADPSS, physical interface case, power amplifier, electricity
Amount recorder analyser, work station and tested Small Electric Current Earthing And Routing Device, it is characterised in that:Described ADPSS analogue systems and
Physical interface connects, and physical interface case analog output is connected with the signal input part of power amplifier;Power amplifier
Signal output part is connected with tested Small Electric Current Earthing And Routing Device all the way, and another road and electricity recorder analyser are connected;It is tested small
Current earthing line selection apparatus output signal and physical interface case are connected, electricity recorder analyser and by checking device respectively with work station
Connection.
Its test method, comprises the following steps:
The first step, collection power distribution network scene earth fault recorded wave file of classifying according to earth fault type, form type testing case
Example storehouse;
Second step, build the Small Electric Current Earthing And Routing Device test platform based on ADPSS analogue systems;
3rd step, failure wave-recording playback simulation model is set up using ADPSS analogue systems, reproduce the complicated operation work of earth fault
Condition;
Failure wave-recording file in 4th step, successively playback type testing case library, to carrying out route selection functional test by checking device.
The step(One)The middle type testing case library that formed is to collected power distribution network scene earth fault record ripple
File data is analyzed, according to metallic earthing, non-metal earthing, arc grounding, intermittent ground connection, high resistance ground, many
The classifications such as point ground connection, circuit developing fault carry out taxonomic revision to fault recorder data, mark the circuit under various operating modes
Zero-sequence current and busbar voltage passage, select faulty line, so as to form type testing case library.
The step(Two)In based on ADPSS analogue systems Small Electric Current Earthing And Routing Device test platform, be ADPSS imitate
The test signal of real-time voltage and electric current is sent to physical interface case, physical interface case mould by true system by optical fiber or Ethernet
Intend output end to be connected with the signal input part of power amplifier by cable, PA signal output end is in parallel to access electricity
Recorder analyser and by checking device, electricity recorder analyser and connects work station respectively by checking device.
The step(Three)Middle utilization ADPSS analogue systems set up failure wave-recording playback simulation model, reproduce earth fault
Complicated operating condition, is the simulation model that failure wave-recording playback is built on the electromagnetic transient simulation platform of ADPSS systems, is passed through
The complicated operating condition of data readback function true reappearance earth fault.
The step(Four)In play back failure wave-recording file in type testing case library successively, be to play back type testing successively
Failure wave-recording file in case library, every group of experiment should ensure that test signal output is correct, and obtaining electricity using work station records
Analyzer and by the recorded wave file of checking device and route selection result, checks line selection apparatus failure wave-recording and ground connection memory function, and remember
The every result of the test of record, it is to be installed put signal return after start lower battery of tests.
Beneficial effects of the present invention are:
The complicated operating condition of true reappearance earth fault is capable of in recorded wave file playback of the present invention based on ADPSS analogue systems,
Substantially the various low current grounding types that power distribution network may occur are covered, not by power system simulation model parameter accuracy
, directly be directly inputted to the real-time voltage and current signal before and after failure by checking device by influence, realizes to small current neutral grounding
The dynamic detection of line selection apparatus.
Brief description of the drawings
Fig. 1 is Small Electric Current Earthing And Routing Device test platform schematic diagram of the invention.
Specific embodiment
Specific embodiment one, one kind with reference to described in Fig. 1 illustrates this specific embodiment is returned based on ADPSS failure wave-recordings
The Small Electric Current Earthing And Routing Device test platform put, 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, wherein ADPSS analogue systems
For playing back live earth fault recorder data, the test signal of voltage and current is sent to physical interface case, physical interface
Case analog output is connected with the signal input part of power amplifier, and the amplified simultaneous transmission of voltage and current signal is remembered to electricity
Analyzer is recorded and by checking device, by checking device is according to itself algorithm judgement faulty line and provides route selection trip signal, work station
Obtain electricity recorder analyser and by the recorded wave file of checking device and route selection result.
Specific embodiment two, a kind of line-selected earthing device test method based on the playback of ADPSS failure wave-recordings, including with
Lower step:
(1)According to earth fault type classification collection power distribution network scene earth fault recorded wave file, type testing case library is formed;
(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 operating condition is reproduced;
(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), collected power distribution network scene earth fault recorded wave file data 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 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 and connect by ADPSS analogue systems by optical fiber or Ethernet
Mouth case;
b)Physical interface case analog output is connected by cable with the signal input part of power amplifier;
c)PA signal output end is in parallel to access 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, by 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, every group of experiment should ensure that test
Signal output is correct, and electricity recorder analyser is obtained 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 record every result of the test, it is to be installed put signal return after start next group
Experiment.
Above-mentioned combination accompanying drawing is described to specific embodiment of the invention, but not to the scope of the present invention
Limitation, the various modifications made on the basis of technical solution of the present invention or deformation are still within protection scope of the present invention.
Claims (6)
1. a kind of line-selected earthing device test platform based on the playback of ADPSS failure wave-recordings, including power system is 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 electricity recorder analyser are connected;Tested Small Electric Current Earthing And Routing Device output signal and the connection of physical interface case,
Electricity recorder analyser and it is connected with work station respectively by checking device.
2. it is a kind of based on ADPSS failure wave-recordings playback line-selected earthing device test method, it is characterised in that including following step
Suddenly:
The first step, collection power distribution network scene earth fault recorded wave file of classifying according to earth fault type, form type testing case
Example storehouse;
Second step, build the Small Electric Current Earthing And Routing Device test platform based on ADPSS analogue systems;
3rd step, failure wave-recording playback simulation model is set up using ADPSS analogue systems, reproduce the complicated operation work of earth fault
Condition;
Failure wave-recording file in 4th step, successively playback type testing case library, to carrying out route selection functional test by checking device.
3. a kind of line-selected earthing device test method based on the playback of ADPSS failure wave-recordings according to claim 2, it is special
Levy and be:The step(One)The middle type testing case library that formed is to collected power distribution network scene earth fault record ripple text
Number of packages evidence is analyzed, according to metallic earthing, non-metal earthing, arc grounding, intermittent ground connection, high resistance ground, multiple spot
The classifications such as ground connection, circuit developing fault carry out taxonomic revision to fault recorder data, mark the line zero under various operating modes
Sequence electric current and busbar voltage passage, select faulty line, so as to form type testing case library.
4. a kind of line-selected earthing device test method based on the playback of ADPSS failure wave-recordings according to claim 2, it is special
Levy and be:The step(Two)In based on ADPSS analogue systems Small Electric Current Earthing And Routing Device test platform, be ADPSS imitate
The test signal of real-time voltage and electric current is sent to physical interface case, physical interface case mould by true system by optical fiber or Ethernet
Intend output end to be connected with the signal input part of power amplifier by cable, PA signal output end is in parallel to access electricity
Recorder analyser and by checking device, electricity recorder analyser and connects work station respectively by checking device.
5. a kind of line-selected earthing device test method based on the playback of ADPSS failure wave-recordings according to claim 2, it is special
Levy and be:The step(Three)Middle utilization ADPSS analogue systems set up failure wave-recording playback simulation model, reproduce earth fault and answer
Miscellaneous operating condition, is the simulation model that failure wave-recording playback is built on the electromagnetic transient simulation platform of ADPSS systems, by number
According to the complicated operating condition of playback function true reappearance earth fault.
6. a kind of line-selected earthing device test method based on the playback of ADPSS failure wave-recordings according to claim 2, it is special
Levy and be:The step(Four)In play back failure wave-recording file in type testing case library successively, be to play back type testing successively
Failure wave-recording file in case library, every group of experiment should ensure that test signal output is correct, and obtaining electricity using work station records
Analyzer and by the recorded wave file of checking device and route selection result, checks line selection apparatus failure wave-recording and ground connection memory function, and remember
The every result of the test of record, it is to be installed put signal return after start lower battery of tests.
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Cited By (1)
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CN114895145A (en) * | 2022-05-05 | 2022-08-12 | 云南电网有限责任公司电力科学研究院 | Power distribution network line selection protection accuracy generation method, system, device and storage medium |
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CN114895145A (en) * | 2022-05-05 | 2022-08-12 | 云南电网有限责任公司电力科学研究院 | Power distribution network line selection protection accuracy generation method, system, device and storage medium |
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