CN106093637A - The removing method of dead band defect between intelligent substation primary equipment and secondary device - Google Patents
The removing method of dead band defect between intelligent substation primary equipment and secondary device Download PDFInfo
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- CN106093637A CN106093637A CN201610397087.XA CN201610397087A CN106093637A CN 106093637 A CN106093637 A CN 106093637A CN 201610397087 A CN201610397087 A CN 201610397087A CN 106093637 A CN106093637 A CN 106093637A
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- intelligent substation
- primary equipment
- phase
- actual samples
- dead band
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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
Abstract
The invention discloses the removing method of dead band defect between a kind of intelligent substation primary equipment and secondary device, including: apply the three-phase electricity signal of preset phase and predetermined amplitude to intelligent substation primary equipment so that intelligent substation is in charging operation state；Measure the actual samples data of secondary circuit；Theoretical sampled data is obtained according to described predetermined amplitude and mutual inductor ratio；Judge that the actual samples data of secondary circuit are the most consistent with described theoretical sampled data；When the actual samples data of secondary circuit are consistent with described theoretical sampled data, determine that mutual inductor ratio is correct, otherwise investigate and eliminate circuit defect.The present invention is by measuring the actual samples data of secondary circuit, the relatively actual samples data of secondary circuit are the most consistent with calculating the theoretical sampled data obtained, thus judge that the no-load voltage ratio of transformer is whether correct, it is effectively prevented from newly-built intelligent substation and causes because mutual inductor ratio is incorrect putting into operation the problem of failure.
Description
Technical field
The present invention relates to intelligent substation debugging technique field, be specifically related to a kind of intelligent substation primary equipment and secondary
The removing method of equipment room dead band defect.
Background technology
Along with country greatly develops clean energy resource implementation, as the intelligent grid construction of clean energy resource transfer passage
Raising the curtain, the construction of the hinge-intelligent substation of contact intelligent grid is particularly important.Intelligent substation is to use first
Enter, reliable, the integrated and smart machine of environmental protection, be standardized as with information digitalization of entirely standing, communications platform networking, information sharing
Basic demand, is automatically performed information gathering, measures, controls, protects, measures and the basic function such as detection, be provided simultaneously with supporting
Electrical network automatically controls in real time, Intelligent adjustment, on-line analysis decision-making and the transformer station of the Premium Features such as collaborative interactive.
During intelligent substation debugging, the inferior every specialty test of metering, high pressure and two is separate, and secondary debugging is
Secondary device is made promptly and accurately to reflect the key of primary equipment state.Owing to every specialty test is independently carried out, exist and once set
Dead band between standby and secondary device does not has end-to-end, newly-built intelligent substation is charged put into operation time produce defect or malfunction
Make, cause the intelligent substation failure intelligent grid strong to nation-building that put into operation to cause huge loss, therefore carry out intelligence change
Whole matching degree research between power station primary equipment and secondary device is significant.
Summary of the invention
The technical problem to be solved is to provide dead band between a kind of intelligent substation primary equipment and secondary device
The removing method of defect, by sampling the intelligent substation secondary loop being in charging operation state, compares the signal of telecommunication
Theoretical sampled data the most consistent with actual samples data, determine that mutual inductor ratio is whether correct, verify primary equipment and two
The matching degree of secondary device, thus eliminate the dead band defect between primary equipment and secondary device.
The present invention is achieved through the following technical solutions:
The removing method of dead band defect between a kind of intelligent substation primary equipment and secondary device, including: apply preset phase and
The three-phase electricity signal of predetermined amplitude is to intelligent substation primary equipment so that intelligent substation is in charging operation state；Measure two
The actual samples data of minor loop；Theoretical sampled data is obtained according to described predetermined amplitude and mutual inductor ratio；Judge secondary returning
The actual samples data on road are the most consistent with described theoretical sampled data；Actual samples data and described theory at secondary circuit
When sampled data is consistent, determines that mutual inductor ratio is correct, otherwise investigate and eliminate circuit defect.The present invention allows at intelligent substation
In charging operation state, by measuring the actual samples data of secondary circuit, compare actual samples data and the meter of secondary circuit
Calculate the theoretical sampled data obtained whether consistent, thus judge that the no-load voltage ratio of transformer is the most correct, with this verify primary equipment with
The matching degree of secondary device, is effectively prevented from newly-built intelligent substation and causes because mutual inductor ratio is incorrect putting into operation the asking of failure
Topic.
Optionally, between described intelligent substation primary equipment and secondary device, the removing method of dead band defect also includes: read
Take the actual samples data of IED sampling apparatus；Judge that the actual samples data of IED sampling apparatus with described theoretical sampled data are
No unanimously；When the actual samples data of IED sampling apparatus are all consistent with described theoretical sampled data, determine IED sampling apparatus
There is not current-voltage sampling defect, otherwise investigate and eliminate circuit defect.By reading the actual samples number of IED sampling apparatus
According to, the actual samples data comparing IED sampling apparatus are the most consistent with calculating the theoretical sampled data obtained, thus judge IED
Whether sampling apparatus exists current-voltage sampling defect, is effectively prevented from newly-built intelligent substation electric because IED sampling apparatus exists
Stream voltage sample defect causes putting into operation the problem of failure.
Optionally, described IED sampling apparatus includes that protection device, measure and control device, analysis of network tester, failure wave-recording fill
Put, kilowatt-hour meter and electrical energy collecting device.
Optionally, the described signal of telecommunication is current signal, and described transformer is current transformer, applies preset phase and presets
The three-phase electricity signal of amplitude to intelligent substation primary equipment is: use current feedback circuit to apply preset phase and predetermined amplitude
Three-phase current signal is to primary circuit.
Optionally, the actual samples data measuring secondary circuit are: use AC clip-on ammeter to measure convergence control cabinet secondary
The current value of current terminal.
Optionally, between described intelligent substation primary equipment and secondary device, the removing method of dead band defect also includes: root
Polarity and the current phase of current transformer is judged according to the three-phase current waveform on analysis of network tester and fault wave recording device
Relation is the most correct.By analyzing the three-phase current waveform on analysis of network tester and fault wave recording device, it can be determined that electricity
The polarity of current transformer and current phase relation are the most correct, are effectively prevented from newly-built intelligent substation because of the pole of current transformer
Property and the problem of the incorrect failure that causes putting into operation of current phase relation.
Optionally, the described signal of telecommunication is voltage signal, and described transformer is voltage transformer, applies preset phase and presets
The three-phase electricity signal of amplitude to intelligent substation primary equipment is: use voltage generator to apply preset phase and predetermined amplitude
Three-phase voltage signal is to the low-pressure side of intelligent substation.
Optionally, the actual samples data measuring secondary circuit are: use circuit tester to measure convergence control cabinet secondary voltage terminal
Magnitude of voltage.
Optionally, between described intelligent substation primary equipment and secondary device, the removing method of dead band defect also includes: root
Judge that mutual relation of electric voltage is the most correct according to the three-phase voltage waveform on analysis of network tester and fault wave recording device.By dividing
Three-phase voltage waveform on analysis analysis of network tester and fault wave recording device, it can be determined that mutual relation of electric voltage is the most correct,
It is effectively prevented from newly-built intelligent substation to cause because mutual relation of electric voltage is incorrect putting into operation the problem of failure.
Optionally, between described intelligent substation primary equipment and secondary device, the removing method of dead band defect also includes: root
Configuration file according to IED sampling apparatus, it is judged that the empty terminal of IED sampling apparatus connects the most correct.By analyzing IED sampling cartridge
The configuration file put, it can be determined that the empty terminal of IED sampling apparatus connects the most correct, is effectively prevented from newly-built intelligent substation
Because the empty terminal malunion of IED sampling apparatus really causes putting into operation the problem of failure.
The present invention compared with prior art, has such advantages as and beneficial effect:
The removing method of dead band defect between the intelligent substation primary equipment of present invention offer and secondary device, by checking IED
Whether sampling apparatus exists current-voltage sampling defect, voltage transformer summation current transformer secondary circuit whether correct, voltage
Current phase relation the most correctly instructs newly-built intelligent substation to put into operation, and both can ensure that the success of newly-built intelligent substation puts into operation
And safe operation, be prevented effectively from newly-built intelligent substation puts into operation unsuccessfully, and newly-built intelligent substation safety can be avoided again the most hidden
Suffer from and the appearance of defect, improve the strong intelligence effect of newly-built intelligent substation.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by the embodiment of the present invention, constitutes of the application
Point, it is not intended that the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is the flow process of the removing method of dead band defect between the intelligent substation primary equipment of the embodiment of the present invention and secondary device
Schematic diagram.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment and accompanying drawing, to this
Invention is described in further detail, and the exemplary embodiment of the present invention and explanation thereof are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment 1
Fig. 1 is the flow process signal of the removing method of dead band defect between the intelligent substation primary equipment of the present embodiment and secondary device
Figure, between described intelligent substation primary equipment and secondary device, the removing method of dead band defect includes:
Step S11, applies the three-phase electricity signal of preset phase and predetermined amplitude to intelligent substation primary equipment so that intelligence becomes
Power station is in charging operation state.Implementing before this removing method, intelligent substation completed high pressure, measure, to change ring etc. every
Specialty test, secondary debugging is fully completed, and intelligent substation is in SBR before putting into operation.
Between intelligent substation primary equipment and secondary device, dead band defect includes current defects and voltage effects.Eliminating electricity
During stream defect, the signal of telecommunication of applying is current signal, applies the three-phase electricity signal of preset phase and predetermined amplitude to intelligence power transformation
Primary equipment of standing is: use current feedback circuit to apply the three-phase current signal of preset phase and predetermined amplitude to primary circuit, one
After minor loop adds three-phase current signal, intelligent substation is in charging operation state.When eliminating voltage effects, the electricity of applying
Signal is voltage signal, and the three-phase electricity signal applying preset phase and predetermined amplitude to intelligent substation primary equipment is: use
Voltage generator applies the three-phase voltage signal low-pressure side to intelligent substation of preset phase and predetermined amplitude, the three of low-pressure side
Phase voltage signal makes high-pressure side and medium voltage side entirety charged through main transformer, and intelligent substation is in charging operation state.For example, it is possible to
Apply 400V three-phase alternating current and be depressed into the low-pressure side of intelligent substation.
Step S12, measures the actual samples data of secondary circuit.Specifically, when eliminating current defects, pincer is used to hand over
The current value of convergence control cabinet secondary current terminal measured by stream ammeter；When eliminating voltage effects, circuit tester is used to measure convergence control cabinet
The magnitude of voltage of secondary voltage terminal.
Step S13, obtains theoretical sampled data according to described predetermined amplitude and mutual inductor ratio.Specifically, electricity is being eliminated
During stream defect, described theoretical sampled data is the no-load voltage ratio of current transformer on predetermined current Amplitude Ratio；When eliminating voltage effects,
Described theoretical sampled data is the no-load voltage ratio of voltage transformer on predeterminated voltage Amplitude Ratio.
Step S14, it is judged that the actual samples data of secondary circuit are the most consistent with described theoretical sampled data.In preferable feelings
Under condition, the most there is not error in the equipment in secondary circuit, the actual samples data of secondary circuit and described theoretical sampled data one
Cause the actual samples data referring to secondary circuit equal with described theoretical sampled data.But in a practical situation, in secondary circuit
Equipment error cannot eliminate.Therefore, in the present embodiment, the actual samples data of secondary circuit and described theoretical sampling
The difference of data in preset range, then judges that the actual samples data of secondary circuit are consistent with described theoretical sampled data, institute
State preset range to be configured according to practical situation.
When the actual samples data of secondary circuit are consistent with described theoretical sampled data, perform step S15, determine mutual inductance
Device no-load voltage ratio is correct；When the actual samples data of secondary circuit are consistent with described theoretical sampled data, perform step S16, investigation
And eliminate circuit defect.When eliminating current defects, investigation current loop also eliminates current loop defect；Eliminating voltage effects
Time, investigation voltage circuit also eliminates voltage circuit defect.
Embodiment 2
With continued reference to Fig. 1, the present embodiment is with the difference of embodiment 1, also includes:
Step S17, reads the actual samples data of IED sampling apparatus.Specifically, described IED sampling apparatus include protection device,
Measure and control device, analysis of network tester, fault wave recording device, kilowatt-hour meter and electrical energy collecting device.Intelligent substation is divided into
Primary equipment and secondary device, by the voltage transformer summation current transformer being arranged on primary equipment, can will once set
Standby upper high-voltage large current obtains double sampling value through certain no-load voltage ratio conversion and monitors with protection once for secondary device sampling
Equipment state.Eliminate current defects time, read protection device, measure and control device, analysis of network tester, fault wave recording device,
Electric current actual samples data on kilowatt-hour meter and electrical energy collecting device；When eliminating voltage effects, read protection device, survey
Voltage actual samples number on control device, analysis of network tester, fault wave recording device, kilowatt-hour meter and electrical energy collecting device
According to.
Step S18, it is judged that the actual samples data of IED sampling apparatus are the most consistent with described theoretical sampled data.Disappearing
During except current defects, will be from protection device, measure and control device, analysis of network tester, fault wave recording device, kilowatt-hour meter and electric energy
The electric current actual samples data read on amount harvester contrast with described theoretical sampled data respectively；Lack eliminating voltage
When falling into, will fill from protection device, measure and control device, analysis of network tester, fault wave recording device, kilowatt-hour meter and generated energy acquisition
The voltage actual samples data putting reading contrast with described theoretical sampled data respectively.Concrete determination methods and embodiment
In 1, step S14 is similar to, and does not repeats them here.
When the actual samples data of IED sampling apparatus are all consistent with described theoretical sampled data, perform step S19, really
Determine IED sampling apparatus and there is not current-voltage sampling defect, such as, the voltage actual samples data read from protection device with
When described theoretical sampled data is consistent, determine the voltage sample function not existing defects of protection device；Reality at IED sampling apparatus
When border sampled data is all inconsistent with described theoretical sampled data, performs step S16, investigate and eliminate circuit defect.
Embodiment 3
The present embodiment compared with Example 2, also includes: according to the three-phase current on analysis of network tester and fault wave recording device
Waveform judges that the polarity of current transformer and current phase relation are the most correct, fills according to analysis of network tester and failure wave-recording
The three-phase voltage waveform put judges that mutual relation of electric voltage is the most correct.If on analysis of network tester and fault wave recording device
Phase relation between three-phase electricity signal waveform keeps consistent, then with the three-phase electricity signal of the preset phase of applying and predetermined amplitude
Illustrate that correct and current transformer the polarity of current phase relation/mutual relation of electric voltage is correct, otherwise need to get rid of and eliminate back
Road defect.
Embodiment 4
The present embodiment compared with Example 2, also includes: according to the configuration file of IED sampling apparatus, it is judged that IED sampling apparatus
Empty terminal connects the most correct.Tradition transformer station is to be sampled by cable simulation amount, and intelligent substation is to pass through optical fiber
Transmission signal carries out digital quantity sampling, by virtually connecting line realization sampling between two IED sampling apparatuses.Combining unit is to receive
Current/voltage secondary analog quantity is converted into digital quantity and sends, current/voltage send fixing current/voltage void terminal number,
Protection device, measure and control device etc. receive current/voltage also fixing empty terminal number.Such as, protection device A phase protective current
Receiving terminal must connect the empty terminal that combining unit A phase protective current sends, it is necessary to one_to_one corresponding.
Being converted to two sub-values by transformer, sampled value and wave file according to protection device can check that merging is single
Empty terminal line between unit and protection device is the most correct.Such as, primary equipment adds the phase place of A, B, C three-phase current respectively
Be 0 degree ,-120 degree ,+120 degree, the phase place of the three-phase current that combining unit sampling sends be respectively 0 degree ,-120 degree ,+120 degree,
But protection device receive A, B, C three-phase current phase place be shown as 0 degree ,+120 degree ,-120 degree, electric with actual primary equipment electric current
Press inconsistent.This phenomenon is i.e. B phase and the empty terminal reversal connection of C phase protection device reception, and protection device B Phase Receiver is connected to conjunction
And unit C phase sends, protection device C Phase Receiver is connected to combining unit B phase and sends.
Above-described detailed description of the invention, has been carried out the purpose of the present invention, technical scheme and beneficial effect further
Describe in detail, be it should be understood that the detailed description of the invention that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. done, all should comprise
Within protection scope of the present invention.
Claims (10)
1. the removing method of dead band defect between an intelligent substation primary equipment and secondary device, it is characterised in that including:
Apply the three-phase electricity signal of preset phase and predetermined amplitude to intelligent substation primary equipment so that intelligent substation is in
Charging operation state；
Measure the actual samples data of secondary circuit；
Theoretical sampled data is obtained according to described predetermined amplitude and mutual inductor ratio；
Judge that the actual samples data of secondary circuit are the most consistent with described theoretical sampled data；
When the actual samples data of secondary circuit are consistent with described theoretical sampled data, determine that mutual inductor ratio is correct, otherwise
Investigate and eliminate circuit defect.
The removing method of dead band defect between intelligent substation primary equipment the most according to claim 1 and secondary device, its
It is characterised by, also includes:
Read the actual samples data of IED sampling apparatus；
Judge that the actual samples data of IED sampling apparatus are the most consistent with described theoretical sampled data；
When the actual samples data of IED sampling apparatus are all consistent with described theoretical sampled data, determine that IED sampling apparatus is not deposited
In current-voltage sampling defect, otherwise investigate and eliminate circuit defect.
The removing method of dead band defect between intelligent substation primary equipment the most according to claim 2 and secondary device, its
Being characterised by, described IED sampling apparatus includes protection device, measure and control device, analysis of network tester, fault wave recording device, electricity
Degree table and electrical energy collecting device.
The removing method of dead band defect between intelligent substation primary equipment the most according to claim 3 and secondary device, its
Being characterised by, the described signal of telecommunication is current signal, and described transformer is current transformer, applies preset phase and predetermined amplitude
Three-phase electricity signal to intelligent substation primary equipment is: use current feedback circuit to apply preset phase and the three-phase electricity of predetermined amplitude
Stream signal is to primary circuit.
The removing method of dead band defect between intelligent substation primary equipment the most according to claim 4 and secondary device, its
Being characterised by, the actual samples data measuring secondary circuit are: use AC clip-on ammeter to measure convergence control cabinet secondary current end
The current value of son.
The removing method of dead band defect between intelligent substation primary equipment the most according to claim 4 and secondary device, its
It is characterised by, also includes:
Polarity and the electricity of current transformer is judged according to the three-phase current waveform on analysis of network tester and fault wave recording device
Stream phase relation is the most correct.
The removing method of dead band defect between intelligent substation primary equipment the most according to claim 3 and secondary device, its
Being characterised by, the described signal of telecommunication is voltage signal, and described transformer is voltage transformer, applies preset phase and predetermined amplitude
Three-phase electricity signal to intelligent substation primary equipment is: use voltage generator to apply preset phase and the three-phase electricity of predetermined amplitude
Press signal to the low-pressure side of intelligent substation.
The removing method of dead band defect between intelligent substation primary equipment the most according to claim 7 and secondary device, its
Being characterised by, the actual samples data measuring secondary circuit are: use circuit tester to measure the voltage of convergence control cabinet secondary voltage terminal
Value.
The removing method of dead band defect between intelligent substation primary equipment the most according to claim 7 and secondary device, its
It is characterised by, also includes:
Judge that mutual relation of electric voltage is the most correct according to the three-phase voltage waveform on analysis of network tester and fault wave recording device.
The removing method of dead band defect between intelligent substation primary equipment the most according to claim 2 and secondary device, its
It is characterised by, also includes:
Configuration file according to IED sampling apparatus, it is judged that the empty terminal of IED sampling apparatus connects the most correct.
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| CN201610397087.XA CN106093637B (en) | 2016-06-07 | 2016-06-07 | The removing method of dead zone defect between intelligent substation primary equipment and secondary device |
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| CN201610397087.XA CN106093637B (en) | 2016-06-07 | 2016-06-07 | The removing method of dead zone defect between intelligent substation primary equipment and secondary device |
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| CN106645931A (en) * | 2016-11-29 | 2017-05-10 | 国网四川省电力公司电力科学研究院 | Current transformer secondary circuit monitoring module and method, and specific transformer acquiring terminal |
| CN109283406A (en) * | 2018-08-13 | 2019-01-29 | 中国南方电网有限责任公司超高压输电公司梧州局 | Current loop based on whole station date comprision monitors system |
| CN109991493A (en) * | 2019-03-25 | 2019-07-09 | 珠海格力电器股份有限公司 | Energy monitor method, apparatus, equipment and system |
| CN110703029A (en) * | 2019-11-06 | 2020-01-17 | 国网河北省电力有限公司保定供电分公司 | Fault detection system and method for primary and secondary systems of intelligent substation |
| CN113866526A (en) * | 2021-08-09 | 2021-12-31 | 大唐水电科学技术研究院有限公司 | One-time simulation live test system and method for intelligent substation |
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| CN109283406B (en) * | 2018-08-13 | 2021-04-23 | 中国南方电网有限责任公司超高压输电公司梧州局 | Current loop monitoring system based on total station data contrastive analysis |
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| CN110703029A (en) * | 2019-11-06 | 2020-01-17 | 国网河北省电力有限公司保定供电分公司 | Fault detection system and method for primary and secondary systems of intelligent substation |
| CN110703029B (en) * | 2019-11-06 | 2022-03-08 | 国网河北省电力有限公司保定供电分公司 | Fault detection system and method for primary and secondary systems of intelligent substation |
| CN113866526A (en) * | 2021-08-09 | 2021-12-31 | 大唐水电科学技术研究院有限公司 | One-time simulation live test system and method for intelligent substation |
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