CN108205096A - A kind of multi-source failure data analyzing method based on active time adjustment - Google Patents
A kind of multi-source failure data analyzing method based on active time adjustment Download PDFInfo
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- CN108205096A CN108205096A CN201711190036.0A CN201711190036A CN108205096A CN 108205096 A CN108205096 A CN 108205096A CN 201711190036 A CN201711190036 A CN 201711190036A CN 108205096 A CN108205096 A CN 108205096A
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- 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
- G01R31/08—Locating faults in cables, transmission lines, or networks
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Abstract
The invention discloses a kind of multi-source failure data analyzing methods based on active time adjustment, when Prudential Master actively initiates the network pair of each prudential sub-station, record the time difference of prudential sub-station and Prudential Master；When prudential sub-station initiates the network pair with station equipment, record prudential sub-station and protective device, the time difference of fault oscillograph；More than ten correction single deviations are generated, and be repeatedly averaged according to the time difference of front, form each equipment time complexity curve value；In grid collapses, Prudential Master is corrected the information of each secondary device received according to equipment time complexity curve value；Action of the Prudential Master to the protection equipment after correction, warning information, join protection and fault oscillograph reach recorded broadcast file, carry out the accident analysis of multi-source.Electric network fault data are rapidly and accurately obtained, greatly improve the analyzing and processing ability to electric network fault, contribute to fast recovery of power supply, mitigates breakdown loss, is provided a strong guarantee for grid operating monitoring.
Description
Technical field
The invention belongs to relay protection of power system failure information system fields, and in particular to one kind is based on active time school
Positive multi-source failure data analyzing method.
Background technology
The construction of domestic failure information system have passed through more than ten years constantly explore, improved process.The fault message of early stage
System is mainly explored and is attempted, and the later stage by continuously improving, all realizes the work(of remotely monitor and information calling inquiry substantially
Energy.Present circumstances is preferably regional, and Prudential Master, which comes into, improves practical rank that is horizontal, regulate and control integration operation
Section, effectively realize to protection, the in-service monitoring of oscillograph and management, substantially increase electric network fault information Quick Acquisition,
Analysis and processing capacity.The preferable area of present circumstances comes into and improves practical level, carries out regulating and controlling integration operation
Stage.But from the whole country in general, also there are send inaccuracy in protection information for many existing failure information systems
Even missing, send in information not in time, command response is slow, recorded wave file obtains that slow, protection communication natural rate of interest is not high, accident analysis
The problems such as poor practicability, seriously constrains the application of function of failure information system.
It is researched and analysed according to various regions longtime running experience and user, producer, most problems are derived from plant stand end, main
Want reason include protection, the information that externally provides of oscillograph is inadequate, information is lack of standardization, communication mode disunity, the equipment time not
The deficiencies of accurate.Wherein due to protective device in substation, the inaccuracy of the equipment time of fault oscillograph, Prudential Master therefore
When hindering data preparation, it can not be prepared according to the time of facility information, judge the accuracy of information, cause user that can not directly acquire
Fault data is the principal element of accident analysis poor practicability.
Invention content
The purpose of the present invention is to provide a kind of multi-source failure data analyzing method based on active time adjustment, Neng Gouyou
Effect solve substation in protective device, fault oscillograph the equipment time inaccuracy, Prudential Master when fault data arranges,
It can not be prepared according to the time of facility information, judge the accuracy of information, cause user that can not directly acquire asking for fault data
Topic.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following technical solutions：One kind is based on the active time
The multi-source failure data analyzing method of correction, includes the following steps successively：
Step 1：When Prudential Master actively initiates the network pair of each prudential sub-station, prudential sub-station and Prudential Master are recorded
Time difference Δ t1；
Step 2：When Prudential Master proactive notification prudential sub-station carries out network pair to the secondary device in station, prudential sub-station
The time difference Δ t2 of record and secondary device；
Step 3：Prudential sub-station will be sent on the time difference Δ t2 with secondary device each in station to Prudential Master, protects letter master
The each secondary device of preservation of standing treats the time difference Δ t2 and time difference Δ t1 with prudential sub-station with prudential sub-station, protects letter in this way
Main website just has the time difference Δ t3 with each secondary device, and Δ t3=Δ t1+ Δs t2；It will be Step 1: step 2 repeats
Operation is multiple, calculates multiple Δ t3, and by average value three times, as the secondary device and the time adjustment number of Prudential Master
It is worth Δ T；
Step 4：In grid collapses, secondary device can by prudential sub-station to sent in Prudential Master with this two
The messages such as action, alarm, the recording bulletin message of secondary device time, and transmit corresponding recorded wave file；Prudential Master is to receiving
Each secondary device information time of origin T, carry out time complexity curve, the modified time is denoted as：T '=T+ Δ T, and press
According to the time T ' after correction, fault data arrangement and the accident analysis of multi-source are carried out；
Step 5：Prudential Master to the action of the protection equipment after correction, warning information and protection recorded wave file,
The recorded wave file of fault oscillograph, electric network fault data preparation and analysis after being corrected；For the same of same primary fault
Protective device recorded wave file in one substation, fault oscillograph recorded wave file carry out multi-source analysis, use different recorded wave files
In same channels data carry out time unifying；Prudential Master is filled for the protection in the different substation of same primary fault
Recorded wave file is put, fault oscillograph recorded wave file carries out multi-source analysis and carries out time unifying.
Preferably, it in the step 1, when the network pair with each prudential sub-station is actively initiated by Prudential Master, uses
Network Time Protocol by Prudential Master, sends target message during with this equipment and is receiving initiation to prudential sub-station, prudential sub-station
During the message at end, in addition the reception markers of prudential sub-station, and when returning to Prudential Master message, along with message leaves guarantor
Believe the markers of substation, Prudential Master receives corresponding message timestamp, and calculate between Prudential Master and prudential sub-station when
Between it is poor.
Preferably, in the step 2, prudential sub-station after message, is protected in the network pair for receiving Prudential Master proactive notification
Believe substation according to, with protective device, the access network of fault oscillograph, when carrying out network pair, prudential sub-station only passes through in substation
Message during network pair calculates prudential sub-station time and protection equipment, the time difference of fault oscillograph equipment time, it is impossible to protecting
Protect equipment, the time of fault oscillograph equipment modifies.
Preferably, in the step 3, Prudential Master preserves each secondary device and is treated the time difference with prudential sub-station, Yi Jiyu
The time difference of prudential sub-station, such Prudential Master has just calculated and the time adjustment single deviation of each secondary device；It calculates
Prudential Master and protective device, the deviation of fault oscillograph need to carry out multiple calculating averaged, as each equipment
Time complexity curve value, and also need to be modified each equipment time complexity curve value.
Preferably, in the step 4, in grid collapses, secondary device can be by prudential sub-station to Prudential Master
On send the messages such as the action with this equipment time, alarm, recording bulletin, and generate corresponding recorded wave file；Prudential Master pair
The time of origin of the information of each secondary device received carries out time complexity curve, and the correction time reaches second grade, and according to school
Time after just carries out fault data arrangement and the accident analysis of multi-source.
Preferably, in the step 5, Prudential Master is according to time of one secondary device connection relation of power grid and information
Sequential carries out the arrangement of electric network fault data, to the recording text of the action of the protection equipment after correction, warning information and protection
Part, the recorded wave file of fault oscillograph, electric network fault data preparation and analysis after being corrected；When using in same substation
Waveform carry out accident analysis when, due to the protective device in same primary fault, acted in a substation, Yi Jiji
In the different recorded wave files for recording the fault oscillograph of this failure, some channel informations of identical equipment will necessarily be included；It uses
The switch changed position information of same numbers channel and the difference of identical analog quantity channel, are handled, realize different sample frequencys
The merging of lower recorded wave file is shown, for the use of user.
Preferably, in the step 5, Prudential Master is according to time of one secondary device connection relation of power grid and information
Sequential carries out the arrangement of electric network fault data, to the recording text of the action of the protection equipment after correction, warning information and protection
Part, the recorded wave file of fault oscillograph, electric network fault data preparation and analysis after being corrected；For line fault occurs
When, when carrying out accident analysis using the waveform in Liang Ge substations, due to being related to Liang Ge substations, same equipment phase can not be used
Data with channel are aligned, and need the parameter of the circuit preserved according to Prudential Master at this time, calculate circuit both end voltage
Differential seat angle makes the Wave data at both ends realize time unifying, for user the Wave data at both ends with the differential seat angle into line displacement
Use.
Compared with prior art, it is an advantage of the invention that：The present invention is based on active time adjustment mechanism, by Prudential Master master
It is dynamic initiate with protective device, fault oscillograph network pair when, and preserve the time deviation of each equipment and Prudential Master.In event
When barrier occurs, realize the information for automatically correcting the protective device of existence time deviation, sending on fault oscillograph, realize Prudential Master
The compatible of the fault data of target existing equipment when containing inaccurate of access is arranged, rapidly and accurately obtains electric network fault number
According to greatly improving the analyzing and processing ability to electric network fault, reference frame provided for scheduling decision, fast quick-recovery is contributed to supply
Electricity mitigates breakdown loss, is provided a strong guarantee for grid operating monitoring.
Description of the drawings
Fig. 1 is the flow chart of the present invention
Fig. 2 is the schematic diagram for calculating single time deviation.
Fig. 3 is the schematic diagram that Prudential Master carries out failure data analyzing.
Specific embodiment
The embodiment of the present invention is described below in detail, the example of the embodiment is shown in the drawings.Below with reference to
The embodiment of attached drawing description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
It is a kind of embodiment of the multi-source failure data analyzing method based on active time adjustment of the present invention refering to Fig. 1, it should
When method actively initiates the network pair with prudential sub-station by Prudential Master, the time difference of Prudential Master and prudential sub-station is recorded；
Prudential sub-station is initiated with during the network pair of secondary device, recording prudential sub-station and the time difference of secondary device in station in station；Protect letter
Main website is according to the time difference with prudential sub-station, the time difference of prudential sub-station and station equipment, generates the time of each secondary device
Single deviation is corrected, and carries out repeatedly correction and is averaged, forms each secondary device time complexity curve value；In grid collapses
When, Prudential Master is corrected the information of each secondary device received according to equipment time complexity curve value；Prudential Master passes through
The action of protection equipment after correction, warning information, the recorded wave file of join protection device and the recording text of fault oscillograph
Part carries out the accident analysis of multi-source.
Specifically, a kind of multi-source failure data analyzing method based on active time adjustment, includes the following steps successively：
Step 1：When Prudential Master actively initiates the network pair of each prudential sub-station, prudential sub-station and Prudential Master are recorded
Time difference Δ t1；
When actively being initiated by Prudential Master with the network pair of each prudential sub-station, flow during network pair is as shown in Fig. 2, make
Network Time Protocol by Prudential Master, sends the message with this equipment markers T1 to prudential sub-station, prudential sub-station is being received
To originating end message when, in addition the reception markers T2 of prudential sub-station, and when returning to Prudential Master message, along with report
Text leaves the markers T3 of prudential sub-station, and Prudential Master receives corresponding message timestamp T4, and calculates Prudential Master and protect and believe
Time difference Δ t1 between substation：((T2-T1)+(T3-T4))/2.
Step 2：When Prudential Master proactive notification prudential sub-station carries out network pair to the secondary device in station, prudential sub-station
The time difference Δ t2 of record and secondary device；
Prudential sub-station in the network pair for receiving Prudential Master proactive notification after message, prudential sub-station according in substation with
The access network of protective device, fault oscillograph, when carrying out network pair, message when prudential sub-station is by network pair calculates
Prudential sub-station time and protection equipment, the time difference of fault oscillograph equipment time, it is impossible to be set to protection equipment, fault oscillograph
The standby time modifies.
Step 3：Prudential Master is according to the time difference with prudential sub-station, the time difference of prudential sub-station and station equipment, generation
Time adjustment single deviation, and carry out repeatedly taking mean value, form each equipment time complexity curve value；
Wherein, prudential sub-station will be sent on the time difference Δ t2 with secondary device each in station to Prudential Master, Prudential Master
It preserves each secondary device and treats the time difference Δ t2 and time difference Δ t1 with prudential sub-station with prudential sub-station, protect letter master in this way
Stand the time difference Δ t3 just having with each secondary device, and Δ t3=Δ t1+ Δs t2；It will be Step 1: step 2 repeats to grasp
Make multiple, calculate multiple Δ t3, and by average value three times, as the secondary device and the time adjustment numerical value of Prudential Master
ΔT；
Due to all having deployed clock synchronization system in present substation, after clock synchronization system goes wrong, warp
After crossing maintenance process recovery, the equipment in substation can be completed time synchronization and ensure the consistent of time, that is, protect equipment, failure
The clock jitter of oscillograph equipment, it may occur that variation；Meanwhile protective device, there is likely to be certainly for fault oscillograph equipment
It body time intrinsic some operation deviations and there may be the slower and slower of equipment clock operation or is getting faster, therefore, calculates
Prudential Master and protective device, the deviation of fault oscillograph need to carry out multiple calculating averaged, as each equipment
Time complexity curve value and it also requires according to certain rule and time interval, is modified each equipment time complexity curve value.
Step 4：In grid collapses, Prudential Master is to the information of each secondary device that receives, during according to equipment
Between correction value be corrected；
In grid collapses, secondary device can by prudential sub-station to being sent in Prudential Master with this secondary device when
Between the messages such as action, alarm, recording bulletin message, and transmit corresponding recorded wave file；Prudential Master to receive each two
The time of origin T of the information of secondary device carries out time complexity curve, and the modified time is denoted as：T '=T+ Δ T, and according to correction after
Time T ', carry out fault data arrangement and the accident analysis of multi-source；
Prudential Master is corrected the information of each secondary device received according to equipment time complexity curve value.Due to net
The limitation of stipulations and network transmission intrinsic network delay characteristic during network pair lead to the equipment time of the preservation of Prudential Master
Correction value can only ensure the accuracy to second grade, while during the electric network fault data preparation of Prudential Master, according to power grid one or two times
What the time sequential of equipment connecting relation and information carried out, the data time needed accurately reaches second grade or more.
Step 5：Action of the Prudential Master by the protection equipment after correction, warning information, the recording text of join protection
The recorded wave file of part and fault oscillograph carries out the accident analysis of multi-source；
Prudential Master is to the recorded wave file of the action of the protection equipment after correction, warning information and protection, failure wave-recording
The recorded wave file of device, electric network fault data preparation and analysis after being corrected；In the same substation for same primary fault
Interior protective device recorded wave file, fault oscillograph recorded wave file carry out multi-source analysis, using identical in different recorded wave files
The data of channel carry out time unifying；Prudential Master, for the protective device recording text in the different substation of same primary fault
Part, fault oscillograph recorded wave file carry out multi-source analysis and carry out time unifying.
Prudential Master carries out electric network fault data according to the time sequential of one secondary device connection relation of power grid and information
Arrangement, to the action of the protection equipment after correction, warning information and protection recorded wave file, the recording of fault oscillograph
File, electric network fault data preparation and analysis after being corrected.In for same failure wave file analyze, need to not
With recorded wave file time be aligned after, user could be facilitated to the accurate analysis of failure and grasped as shown in Figure 3.
When the waveform in same substation is used to carry out accident analysis, due in same primary fault, a substation
In the interior protective device acted and the different recorded wave files for the fault oscillograph for recording this failure, it will necessarily include
Some channel informations of identical equipment；Use the switch changed position information of same numbers channel and the difference of identical analog quantity channel
Value, is handled, realizes that the merging of recorded wave file under different sample frequencys is shown, for the use of user.
During for line fault occurs, when carrying out accident analysis using the waveform in Liang Ge substations, due to being related to two
Substation can not use the data of same equipment same channels to be aligned, need the circuit preserved according to Prudential Master at this time
Parameter, calculate circuit both end voltage differential seat angle, the wave at both ends is made into line displacement to the Wave data at both ends with the differential seat angle
Graphic data realizes time unifying, for the use of user.
Technical characteristic the foregoing is merely specific embodiments of the present invention, but the present invention is not limited thereto, Ren Heben
The technical staff in field in the field of the invention, all cover among the scope of the claims of the present invention by the variation or modification made.
Claims (7)
- A kind of 1. multi-source failure data analyzing method based on active time adjustment, it is characterised in that：Include the following steps successively：Step 1：When Prudential Master actively initiates the network pair of each prudential sub-station, record prudential sub-station and Prudential Master when Between poor Δ t1；Step 2：When Prudential Master proactive notification prudential sub-station carries out network pair to the secondary device in station, prudential sub-station record With the time difference Δ t2 of secondary device；Step 3：Prudential sub-station will be sent on the time difference Δ t2 with secondary device each in station to Prudential Master, and Prudential Master is protected It deposits each secondary device and treats the time difference Δ t2 and time difference Δ t1 with prudential sub-station, such Prudential Master with prudential sub-station Just have the time difference Δ t3 with each secondary device, and Δ t3=Δ t1+ Δs t2；It will be Step 1: step 2 repetitive operation Repeatedly, multiple Δ t3 is calculated, and by average value three times, as the secondary device and the time adjustment value, Δ of Prudential Master T；Step 4：In grid collapses, secondary device secondary can be set with this by prudential sub-station to being sent in Prudential Master The messages such as action, alarm, the recording bulletin message of standby time, and transmit corresponding recorded wave file；Prudential Master is every to what is received The time of origin T of the information of a secondary device carries out time complexity curve, and the modified time is denoted as：T '=T+ Δ T, and according to school Time T ' after just carries out fault data arrangement and the accident analysis of multi-source；Step 5：Prudential Master is to the recorded wave file of the action of the protection equipment after correction, warning information and protection, failure The recorded wave file of oscillograph, electric network fault data preparation and analysis after being corrected；In the same change for same primary fault Protective device recorded wave file in power station, fault oscillograph recorded wave file carry out multi-source analysis, using in different recorded wave files The data of same channels carry out time unifying；Prudential Master is recorded for the protective device in the different substation of same primary fault Wave file, fault oscillograph recorded wave file carry out multi-source analysis and carry out time unifying.
- 2. a kind of multi-source failure data analyzing method based on active time adjustment as described in claim 1, it is characterised in that： In the step 1, when actively being initiated by Prudential Master with the network pair of each prudential sub-station, the Network Time Protocol that uses, by Prudential Master, send with this equipment when target message to prudential sub-station, prudential sub-station in the message for receiving originating end, in addition The reception markers of prudential sub-station, and when returning to Prudential Master message, along with message leaves the markers of prudential sub-station, protect Letter main website receives corresponding message timestamp, and calculate the time difference between Prudential Master and prudential sub-station.
- 3. a kind of multi-source failure data analyzing method based on active time adjustment as described in claim 1, it is characterised in that： In the step 2, prudential sub-station is in the network pair for receiving Prudential Master proactive notification after message, and prudential sub-station is according to power transformation In standing with protective device, the access network of fault oscillograph, when carrying out network pair, prudential sub-station only by network pair when report Text calculates prudential sub-station time and protection equipment, the time difference of fault oscillograph equipment time, it is impossible to protection equipment, failure The time of oscillograph equipment modifies.
- 4. a kind of multi-source failure data analyzing method based on active time adjustment as described in claim 1, it is characterised in that： In the step 3, Prudential Master preserves each secondary device and treats time difference and the time with prudential sub-station with prudential sub-station Difference, such Prudential Master has just calculated and the time adjustment single deviation of each secondary device；Calculate Prudential Master and protection The deviation of device, fault oscillograph needs to carry out multiple calculating averaged, as each equipment time complexity curve value, and And it also needs to be modified each equipment time complexity curve value.
- 5. a kind of multi-source failure data analyzing method based on active time adjustment as described in claim 1, it is characterised in that： In the step 4, in grid collapses, secondary device can be by prudential sub-station to being sent in Prudential Master with this equipment The messages such as action, alarm, the recording bulletin of time, and generate corresponding recorded wave file；Prudential Master is each secondary to what is received The time of origin of the information of equipment carries out time complexity curve, and the correction time reaches second grade, and according to the time after correction, into Row fault data arranges and the accident analysis of multi-source.
- 6. a kind of multi-source failure data analyzing method based on active time adjustment as described in claim 1, it is characterised in that： In the step 5, Prudential Master carries out power grid event according to the time sequential of one secondary device connection relation of power grid and information Hinder the arrangement of data, to the recorded wave file of the action of the protection equipment after correction, warning information and protection, fault oscillograph Recorded wave file, electric network fault data preparation after being corrected and analysis；Event is carried out when using the waveform in same substation During barrier analysis, due to the protective device in same primary fault, acted in a substation and this failure is recorded In the different recorded wave files of fault oscillograph, some channel informations of identical equipment will necessarily be included；Use same numbers channel Switch changed position information and identical analog quantity channel difference, handled, realize recorded wave file under different sample frequencys Merge display, for the use of user.
- 7. a kind of multi-source failure data analyzing method based on active time adjustment as described in claim 1, it is characterised in that： In the step 5, Prudential Master carries out power grid event according to the time sequential of one secondary device connection relation of power grid and information Hinder the arrangement of data, to the recorded wave file of the action of the protection equipment after correction, warning information and protection, fault oscillograph Recorded wave file, electric network fault data preparation after being corrected and analysis；During for line fault occurs, two power transformations are used When waveform in standing carries out accident analysis, due to being related to Liang Ge substations, can not use the data of same equipment same channels into Row alignment needs the parameter of the circuit preserved according to Prudential Master at this time, the differential seat angle of circuit both end voltage is calculated, with the angle Difference into line displacement, makes the Wave data at both ends realize time unifying, for the use of user the Wave data at both ends.
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| CN110895321A (en) * | 2019-12-06 | 2020-03-20 | 南京南瑞继保电气有限公司 | Secondary equipment time mark alignment method based on recording file reference channel |
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| CN109709422A (en) * | 2018-12-27 | 2019-05-03 | 中国南方电网有限责任公司 | A kind of removing method and its device of clock drift |
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| CN110895321A (en) * | 2019-12-06 | 2020-03-20 | 南京南瑞继保电气有限公司 | Secondary equipment time mark alignment method based on recording file reference channel |
| CN110895321B (en) * | 2019-12-06 | 2021-12-10 | 南京南瑞继保电气有限公司 | Secondary equipment time mark alignment method based on recording file reference channel |
| CN111143622A (en) * | 2019-12-28 | 2020-05-12 | 国网安徽省电力有限公司 | Fault data set construction method based on big data platform |
| CN111143622B (en) * | 2019-12-28 | 2023-06-09 | 国网安徽省电力有限公司 | Fault data set construction method based on big data platform |
| CN112014689A (en) * | 2020-10-19 | 2020-12-01 | 国网江西省电力有限公司电力科学研究院 | Method and device for diagnosing abnormity of current sampling loop |
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