CN104931831B - Fault handling information acquisition methods and system - Google Patents
Fault handling information acquisition methods and system Download PDFInfo
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Abstract
The present invention relates to a kind of fault handling information acquisition methods and system, wherein, fault handling information acquisition methods, comprise the steps: to obtain fault recorder data from guarantor's communication system of electrical network and protect the protection act that communication system sends for described fault recorder data, and calculate the accuracy of described protection act according to described fault recorder data and protection act; By the fault cause of fault recorder data described in the fault cause anticipation of history recorder data; Fault handling information result is obtained according to described accuracy and fault cause; Send described fault handling information result. Fault handling information acquisition methods provided by the invention and system; fault handling information in relay protection of power system process can obtain on the basis of analysis comprehensively; its analytical results can also obtain in time; and send it to the yardman of electrical network; power system can be safeguarded according to the analytical results obtained by dispatching of power netwoks person better, improve the safety performance of power system further.
Description
Technical field
The present invention relates to technical field of electric power, particularly relate to a kind of fault handling information acquisition methods and system.
Background technology
Along with the expansion day by day of power system scale, the raising of voltage range, electric network fault is as the important component part in power system, and the safe operation of modern power systems in serious threat. Relaying, as the first line of defence ensureing electric power netting safe running, occupies extremely important status in power system.
Traditional relaying action evaluation mainly carries out artificial off-line analysis by information such as fault oscillograph, device action message and emulation experiment data; analysis means is single; automatization level is low, and analysis time is long, and so just the process information of relevant fault is difficult to be obtained in time.
Summary of the invention
Based on this, it is necessary to for, in prior art, the process information of relevant fault is difficult to obtain the technical problem of acquisition in time, it is provided that a kind of fault handling information acquisition methods and system.
A kind of fault handling information acquisition methods, comprises the steps:
From guarantor's communication system of electrical network, obtain fault recorder data and protect the protection act that sends for described fault recorder data of communication system, and calculate the accuracy of described protection act according to described fault recorder data and protection act;
By the fault cause of fault recorder data described in the fault cause anticipation of history recorder data;
Fault handling information result is obtained according to described accuracy and fault cause.
A kind of fault handling information obtains system, comprising:
Calculate module, for obtaining fault recorder data from guarantor's communication system of electrical network and protect the protection act that sends for described fault recorder data of communication system, and calculate the accuracy of described protection act according to described fault recorder data and protection act;
Anticipation module, for the fault cause by fault recorder data described in the fault cause anticipation of history recorder data;
Acquisition module, for obtaining fault handling information result according to described accuracy and fault cause.
Above-mentioned fault handling information acquisition methods and system, by obtaining fault recorder data from guarantor's communication system of electrical network and protect the protection act that sends for described fault recorder data of communication system, calculate the accuracy of described protection act, again by the fault cause of fault recorder data described in the fault cause anticipation of history recorder data, obtain fault handling information result according to described accuracy and fault cause further; Fault handling information in relay protection of power system process can obtain on the basis of analysis comprehensively; its analytical results can also obtain in time; and send it to the yardman of electrical network; power system can be safeguarded according to the analytical results obtained by dispatching of power netwoks person better, improve the safety performance of power system further.
Accompanying drawing explanation
Fig. 1 is the fault handling information acquisition methods schema of an embodiment;
Fig. 2 is the propelling movement functional diagram of the failure analysis report of an embodiment;
The fault handling information that Fig. 3 is an embodiment obtains system architecture schematic diagram;
Fig. 4 is the concentrated recorder data waveform diagram of an embodiment;
Fig. 5 is the protection action analysis result schematic diagram based on concentrated recorder data of an embodiment;
Fig. 6 is the accuracy analysis schematic diagram of the concentrated recorded wave file of an embodiment, other protection recorded wave files and protection act corresponding to this protection recorded wave file;
Fig. 7 is the fault cause anticipation result schematic diagram of an embodiment.
Embodiment
Below in conjunction with accompanying drawing, the embodiment of fault handling information acquisition methods provided by the invention and system is described in detail.
The fault handling information acquisition methods schema showing an embodiment with reference to figure 1, Fig. 1, comprises the steps:
S10, obtains fault recorder data from guarantor's communication system of electrical network and protects the protection act that sends for described fault recorder data of communication system, and calculate the accuracy of described protection act according to described fault recorder data and protection act;
In above-mentioned steps S10, the protection act that guarantor's communication system sends for described fault recorder data can comprise relaying action. Dissimilar fault generally just can be sent corresponding protection act by system of notifying; Above-mentioned fault recorder data and corresponding protection act all can directly directly obtain from protecting communication system.
S20, by the fault cause of fault recorder data described in the fault cause anticipation of history recorder data;
In above-mentioned steps S20, history recorder data can obtain from correlation log, it is also possible to obtains from protecting communication system. Fault cause sorter can be set up according to above-mentioned history recorder data, recycle above-mentioned fault cause sorter and the fault cause corresponding to fault recorder data is carried out anticipation.
S30, obtains fault handling information result according to described accuracy and fault cause.
What the present embodiment provided states fault handling information acquisition methods, by obtaining fault recorder data from guarantor's communication system of electrical network and protect the protection act that sends for described fault recorder data of communication system, calculate the accuracy of described protection act, again by the fault cause of fault recorder data described in the fault cause anticipation of history recorder data, obtain fault handling information result according to described accuracy and fault cause further; Fault handling information in relay protection of power system process can obtain on the basis of analysis comprehensively; its analytical results can also obtain in time; and send it to the yardman of electrical network; power system can be safeguarded according to the analytical results obtained by dispatching of power netwoks person better, improve the safety performance of power system further.
In an embodiment; above-mentioned from guarantor's communication system of electrical network, obtain fault recorder data and protect the protection act that sends for described fault recorder data of communication system, and the step calculating the accuracy of described protection act according to described fault recorder data and protection act can comprise:
From guarantor's communication system of electrical network, obtain fault recorder data and protect the protection act that sends for described fault recorder data of communication system;
Set up the weight of each process of described protection act for the protection act that described fault recorder data sends according to guarantor's communication system; Wherein, the process of described protection act comprises protection act main body, protection startup, phase selection, reclosing, range finding;
The impact that electrical network is normally run by each process of above-mentioned protection act is different, and therefore each process has corresponding weight, and above-mentioned weight can be set up according to assessment modes such as the marking of associated specialist; Table 1 show the weight of each process of protection act set up according to expert estimation of the present embodiment.
The each process weight table of table 1 protection act
| Process | Expert estimation | Weight |
| Protection act main body | 10 | 0.458 |
| Protection starts | 4 | 0.229 |
| Phase selection | 3 | 0.153 |
| Reclosing | 2 | 0.115 |
| Range finding | 1 | 0.046 |
The exactness of each process of the weight according to each process of protection act, protection act and the participation mark of each process of protection act calculate the accuracy of various protection act; Wherein, the type of described protection act is corresponding with the record ripple type of fault recorder data; The record ripple type of described fault recorder data comprises concentrates record ripple, this protection record ripple, other protection record ripples except concentrating record ripple, this protection record ripple;
As an embodiment, the process of the accuracy that the exactness of the above-mentioned weight according to each process of protection act, each process of protection act and the participation mark of each process of protection act calculate various protection act can comprise:
Obtain the participation mark of the weight of each process of protection act, the exactness of each process of protection act and each process of protection act; Wherein, the weight sum of each process of described protection act is 1; The exactness value of each process of described protection act is 0,1, and wherein, in 0 expression protection act, this process is incorrect, and in 1 expression protection act, this process is correct; The participation mark value of each process of described protection act is 0,1, and wherein, in 0 expression protection act, this process does not participate in, and in 1 expression protection act, this process participates in;
The participation mark of the exactness of the weight of each for described protection act process, each process of protection act and each process of protection act is substituted into the accuracy that type accuracy calculation formula calculates various protection act; Wherein, described type accuracy calculation formula is:
Wherein, A1��A2Represent that whether correct protection act main body and protection act main body participation mark respectively, W1Represent the weight of protection act main body; S1��S2Represent that protection starts whether correct startup with protection and participates in mark, W respectively2Represent the weight that protection starts; O1��O2Represent that whether correct phase selection and phase selection participates in indicating respectively, W3Represent the weight of phase selection; C1��C2Represent that whether correct reclosing and phase selection participates in indicating respectively, W4Represent the weight of reclosing; D1��D2Represent that whether correct range finding and phase selection participates in indicating respectively, W5Represent the weight of range finding; * multiplication sign is represented; RiRepresent the accuracy of i-th kind of protection act.
Set up the weight of various record ripple type according to fault recorder data, calculate the protection act accuracy protected communication system and send for described fault recorder data according to the accuracy of described weight and each record ripple type protection act.
As an embodiment; the above-mentioned weight setting up various record ripple type according to fault recorder data, calculating, according to the accuracy of described weight and each record ripple type protection act, the process protecting the protection act accuracy that communication system sends for described fault recorder data can comprise:
The weight of various record ripple type is set up according to fault recorder data;
The above-mentioned weight setting up various record ripple type can be set up according to assessment modes such as the marking of associated specialist; Table 2 show the record ripple type weight set up according to expert estimation of the present embodiment.
Ripple type weight table recorded by table 2
| Record ripple kind | Expert estimation | Weight |
| Concentrate record ripple | 10 | 0.571 |
| Other protection record ripples | 5 | 0.285 |
| This protection record ripple | 2.5 | 0.143 |
The accuracy of described weight and each record ripple type protection act is substituted into accuracy calculation formula and calculates the protection act accuracy protected communication system and send for fault recorder data; Wherein, described accuracy calculation formula is Wherein, R1Representing the concentrated accuracy recording ripple, C represents that concentrated record ripple participates in indicating, its value is that 0 or 1,0 expression concentrated record ripple does not participate in, and 1 represents concentrated records ripple participation, WCRepresent the weight concentrating record ripple; R2Representing the accuracy of this protection record ripple, O represents this protection record ripple participation mark, and its value is that 0 or 1,0 expression this protection record ripples do not participate in, and 1 represents that concentrated record ripple participates in, WORepresent the weight of this protection record ripple; R3Representing that other protect the accuracy recording ripples, H represents that other protection record ripples participate in indicating, its value is that other protection record ripples of 0 or 1,0 expressions do not participate in, and 1 represents that concentrated ripple of recording participates in, WPRepresent the weight of other protection record ripples; * multiplication sign is represented; R represents the protection act accuracy protected communication system and send for fault recorder data.
In an embodiment, above by history recorder data fault cause anticipation described in the step of fault cause of fault recorder data can comprise:
Obtain the voltage data in fault recorder data and current data;
From described voltage data and current data, obtain the voltage data in setting-up time section and current data, obtain time lock data; Above-mentioned setting-up time section is setting initial time and then the time period of termination time, and it can carry out the setting of concrete time period according to the fault recorder data and the relation of corresponding acquisition time of protecting communication system. Can also selecting the waveform file of two raw data in fault recorder data sample, 10 cycles after calculating point fault-time, selection front 2 cycles of time point and time point, alignment sample frequency, same interpolation is 5kHZ, forms the raw data that can contrast.
After described time lock extracting data harmonic data, phase place according to harmonic data sorts;
After phase time lock data every after sequence are carried out little wave conversion, seeking time is with the average energy value of step data every layer wavelet coefficient, energy variance and energy entropy, and using eigenwert as every layer of the average energy value of every layer of wavelet coefficient, energy variance and energy entropy, arrange described eigenwert, form the vector that every layer of wavelet coefficient is corresponding;
Set up fault cause sorter according to history recorder data, vectorial input fault causality classification device corresponding for every layer of wavelet coefficient is judged the per-cent of the fault classification belonging to it is in described fault cause sorter; The foundation of above-mentioned fault cause sorter can by utilizing Reduced Training Set S to carry out SVM training, obtain final fault cause sorter, vectorial input fault causality classification device corresponding for every layer of wavelet coefficient judges the per-cent of the fault classification belonging to it is in described fault cause sorter again, and wherein the fault cause of fault recorder data can be judged to the fault cause of the high per-cent that corresponding vector is corresponding.
The fault cause of the fault recorder data that vector according to per-cent anticipation is corresponding.
In an embodiment, above-mentioned fault handling information acquisition methods can also comprise:
By note or mail he, described fault handling information result is sent to target terminal; Wherein said target terminal is the target terminal of dispatching of power netwoks person's correspondence, and dispatching of power netwoks person can will obtain corresponding fault handling information result by above-mentioned target terminal.
In the present embodiment, above-mentioned fault handling information result can be pushed to related personnel in the way of note and mail; Report brief information can also be pushed by note and remind related personnel to check mail, corresponding mail can pass through SMTP (SimpleMailTransferProtocol, Simple Mail Transfer protocol) mode pushes, and Mail Contents can contain complete failure analysis report. The propelling movement functional diagram of failure analysis report is as indicated with 2: after carrying out correlation analysis for the fault of electrical network; again the exactness protecting communication system protection act is analyzed; predict fault cause further; carry out the propelling movement of failure message again, then it is sent to relevant staff with the form of mail or note.
In an embodiment; the concentrated recorded wave file of certain fault moment, other protection recorded wave file and this protection recorded wave files; the accuracy of its protection act is calculated according to above-mentioned fault handling information acquisition methods; wherein concentrated recorder data waveform can be as shown in Figure 4; protection action analysis result based on concentrated recorder data can be as shown in Figure 5; system synthesis can analyze the accuracy determining the protection act that concentrated recorded wave file, other protection recorded wave files and this protection recorded wave file are corresponding, and it analyzes process can be as shown in Figure 6. According to above-mentioned fault handling information acquisition methods, the recorded wave file of this fault moment is carried out fault cause anticipation, and its anticipation result can shown in Fig. 7.
The fault handling information showing an embodiment with reference to figure 3, Fig. 3 obtains system architecture schematic diagram, comprising:
Calculate module 10, for obtaining fault recorder data from guarantor's communication system of electrical network and protect the protection act that sends for described fault recorder data of communication system, and calculate the accuracy of described protection act according to described fault recorder data and protection act;
Anticipation module 20, for the fault cause by fault recorder data described in the fault cause anticipation of history recorder data;
Acquisition module 30, for obtaining fault handling information result according to described accuracy and fault cause.
In an embodiment, above-mentioned calculating module can be further used for:
From guarantor's communication system of electrical network, obtain fault recorder data and protect the protection act that sends for described fault recorder data of communication system;
Set up the weight of each process of described protection act for the protection act that described fault recorder data sends according to guarantor's communication system; Wherein, the process of described protection act comprises protection act main body, protection startup, phase selection, reclosing, range finding;
The exactness of each process of the weight according to each process of protection act, protection act and the participation mark of each process of protection act calculate the accuracy of various protection act; Wherein, the type of described protection act is corresponding with the record ripple type of fault recorder data; The record ripple type of described fault recorder data comprises concentrates record ripple, this protection record ripple, other protection record ripples except concentrating record ripple, this protection record ripple;
Set up the weight of various record ripple type according to fault recorder data, calculate the protection act accuracy protected communication system and send for described fault recorder data according to the accuracy of described weight and each record ripple type protection act.
In an embodiment, above-mentioned anticipation module can be further used for:
Obtain the voltage data in fault recorder data and current data;
From described voltage data and current data, obtain the voltage data in setting-up time section and current data, obtain time lock data;
After described time lock extracting data harmonic data, phase place according to harmonic data sorts;
After phase time lock data every after sequence are carried out little wave conversion, seeking time is with the average energy value of step data every layer wavelet coefficient, energy variance and energy entropy, and using eigenwert as every layer of the average energy value of every layer of wavelet coefficient, energy variance and energy entropy, arrange described eigenwert, form the vector that every layer of wavelet coefficient is corresponding;
Set up fault cause sorter according to history recorder data, vectorial input fault causality classification device corresponding for every layer of wavelet coefficient is judged the per-cent of the fault classification belonging to it is in described fault cause sorter;
The fault cause of the fault recorder data that vector according to per-cent anticipation is corresponding.
In an embodiment, above-mentioned fault handling information obtains system and can also comprise:
Sending module, for being sent to target terminal by note or mail he by described fault handling information result.
The fault handling information of the present invention obtains the fault handling information acquisition methods one_to_one corresponding of system and the present invention, the technology feature set forth in the embodiment of above-mentioned fault handling information acquisition methods and useful effect thereof are all applicable in the embodiment that fault handling information obtains system, hereby state.
Each technology feature of the above embodiment can combine arbitrarily, for making description succinct, each all possible combination of technology feature in above-described embodiment is not all described, but, as long as the combination of these technology features does not exist contradiction, all it is considered to be the scope that this specification sheets is recorded.
The above embodiment only have expressed several enforcement modes of the present invention, and it describes comparatively concrete and detailed, but can not therefore be construed as limiting the scope of the patent. , it is also possible to make some distortion and improvement, it should be appreciated that for the person of ordinary skill of the art, without departing from the inventive concept of the premise these all belong to protection scope of the present invention. Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (8)
1. a fault handling information acquisition methods, it is characterised in that, comprise the steps:
From guarantor's communication system of electrical network, obtain fault recorder data and protect the protection act that sends for described fault recorder data of communication system, and calculate the accuracy of described protection act according to described fault recorder data and protection act; Described from guarantor's communication system of electrical network, obtain fault recorder data and protect the protection act that sends for described fault recorder data of communication system, and the step of the accuracy calculating described protection act according to described fault recorder data and protection act comprises:
From guarantor's communication system of electrical network, obtain fault recorder data and protect the protection act that sends for described fault recorder data of communication system;
Set up the weight of each process of described protection act for the protection act that described fault recorder data sends according to guarantor's communication system; Wherein, the process of described protection act comprises protection act main body, protection startup, phase selection, reclosing, range finding;
The exactness of each process of the weight according to each process of protection act, protection act and the participation mark of each process of protection act calculate the accuracy of various protection act; Wherein, the type of described protection act is corresponding with the record ripple type of fault recorder data; The record ripple type of described fault recorder data comprises concentrates record ripple, this protection record ripple, other protection record ripples except concentrating record ripple, this protection record ripple;
Set up the weight of various record ripple type according to fault recorder data, calculate the protection act accuracy protected communication system and send for described fault recorder data according to the accuracy of described weight and each record ripple type protection act;
By the fault cause of fault recorder data described in the fault cause anticipation of history recorder data;
Fault handling information result is obtained according to described accuracy and fault cause.
2. fault handling information acquisition methods according to claim 1; it is characterized in that, the process of the accuracy that the exactness of the described weight according to each process of protection act, each process of protection act and the participation mark of each process of protection act calculate various protection act comprises:
Obtain the participation mark of the weight of each process of protection act, the exactness of each process of protection act and each process of protection act; Wherein, the weight sum of each process of described protection act is 1; The exactness value of each process of described protection act is 0,1, and wherein, in 0 expression protection act, this process is incorrect, and in 1 expression protection act, this process is correct; The participation mark value of each process of described protection act is 0,1, and wherein, in 0 expression protection act, this process does not participate in, and in 1 expression protection act, this process participates in;
The participation mark of the exactness of the weight of each for described protection act process, each process of protection act and each process of protection act is substituted into the accuracy that type accuracy calculation formula calculates various protection act; Wherein, described type accuracy calculation formula is:
Wherein, A1��A2Represent that whether correct protection act main body and protection act main body participation mark respectively, W1Represent the weight of protection act main body; S1��S2Represent that protection starts whether correct startup with protection and participates in mark, W respectively2Represent the weight that protection starts; O1��O2Represent that whether correct phase selection and phase selection participates in indicating respectively, W3Represent the weight of phase selection; C1��C2Represent that whether correct reclosing and phase selection participates in indicating respectively, W4Represent the weight of reclosing; D1��D2Represent that whether correct range finding and phase selection participates in indicating respectively, W5Represent the weight of range finding; * multiplication sign is represented; RiRepresent the accuracy of i-th kind of protection act.
3. fault handling information acquisition methods according to claim 1; it is characterized in that; the described weight setting up various record ripple type according to fault recorder data, calculates, according to the accuracy of described weight and each record ripple type protection act, the process protecting the protection act accuracy that communication system sends for described fault recorder data and comprises:
The weight of various record ripple type is set up according to fault recorder data;
The accuracy of described weight and each record ripple type protection act is substituted into accuracy calculation formula and calculates the protection act accuracy protected communication system and send for fault recorder data; Wherein, described accuracy calculation formula is Wherein, R1Representing the concentrated accuracy recording ripple, C represents that concentrated record ripple participates in indicating, its value is that 0 or 1,0 expression concentrated record ripple does not participate in, and 1 represents concentrated records ripple participation, WCRepresent the weight concentrating record ripple; R2Representing the accuracy of this protection record ripple, O represents this protection record ripple participation mark, and its value is that 0 or 1,0 expression this protection record ripples do not participate in, and 1 represents that concentrated record ripple participates in, WORepresent the weight of this protection record ripple; R3Representing that other protect the accuracy recording ripples, H represents that other protection record ripples participate in indicating, its value is that other protection record ripples of 0 or 1,0 expressions do not participate in, and 1 represents that concentrated ripple of recording participates in, WPRepresent the weight of other protection record ripples; R represents the protection act accuracy protected communication system and send for fault recorder data.
4. fault handling information acquisition methods according to claim 1, it is characterised in that, described comprised by the step of the fault cause of fault recorder data described in the fault cause anticipation of history recorder data:
Obtain the voltage data in fault recorder data and current data;
From described voltage data and current data, obtain the voltage data in setting-up time section and current data, obtain time lock data;
After described time lock extracting data harmonic data, phase place according to harmonic data sorts;
After phase time lock data every after sequence are carried out little wave conversion, seeking time is with the average energy value of step data every layer wavelet coefficient, energy variance and energy entropy, and using eigenwert as every layer of the average energy value of every layer of wavelet coefficient, energy variance and energy entropy, arrange described eigenwert, form the vector that every layer of wavelet coefficient is corresponding;
Set up fault cause sorter according to history recorder data, vectorial input fault causality classification device corresponding for every layer of wavelet coefficient is judged the per-cent of the fault classification belonging to it is in described fault cause sorter;
The fault cause of the fault recorder data that vector according to per-cent anticipation is corresponding.
5. fault handling information acquisition methods according to claim 1, it is characterised in that, also comprise:
By note or mail he, described fault handling information result is sent to target terminal.
6. a fault handling information obtains system, it is characterised in that, comprising:
Calculate module, for obtaining fault recorder data from guarantor's communication system of electrical network and protect the protection act that sends for described fault recorder data of communication system, and calculate the accuracy of described protection act according to described fault recorder data and protection act; Described calculating module is further used for:
From guarantor's communication system of electrical network, obtain fault recorder data and protect the protection act that sends for described fault recorder data of communication system;
Set up the weight of each process of described protection act for the protection act that described fault recorder data sends according to guarantor's communication system; Wherein, the process of described protection act comprises protection act main body, protection startup, phase selection, reclosing, range finding;
The exactness of each process of the weight according to each process of protection act, protection act and the participation mark of each process of protection act calculate the accuracy of various protection act; Wherein, the type of described protection act is corresponding with the record ripple type of fault recorder data; The record ripple type of described fault recorder data comprises concentrates record ripple, this protection record ripple, other protection record ripples except concentrating record ripple, this protection record ripple;
Set up the weight of various record ripple type according to fault recorder data, calculate the protection act accuracy protected communication system and send for described fault recorder data according to the accuracy of described weight and each record ripple type protection act;
Anticipation module, for the fault cause by fault recorder data described in the fault cause anticipation of history recorder data;
Acquisition module, for obtaining fault handling information result according to described accuracy and fault cause.
7. fault handling information according to claim 6 obtains system, it is characterised in that, described anticipation module is further used for:
Obtain the voltage data in fault recorder data and current data;
From described voltage data and current data, obtain the voltage data in setting-up time section and current data, obtain time lock data;
After described time lock extracting data harmonic data, phase place according to harmonic data sorts;
After phase time lock data every after sequence are carried out little wave conversion, seeking time is with the average energy value of step data every layer wavelet coefficient, energy variance and energy entropy, and using eigenwert as every layer of the average energy value of every layer of wavelet coefficient, energy variance and energy entropy, arrange described eigenwert, form the vector that every layer of wavelet coefficient is corresponding;
Set up fault cause sorter according to history recorder data, vectorial input fault causality classification device corresponding for every layer of wavelet coefficient is judged the per-cent of the fault classification belonging to it is in described fault cause sorter;
The fault cause of the fault recorder data that vector according to per-cent anticipation is corresponding.
8. fault handling information according to claim 6 obtains system, it is characterised in that, also comprise:
Sending module, for being sent to target terminal by note or mail he by described fault handling information result.
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| CN105353753B (en) * | 2015-12-04 | 2019-01-29 | 国网冀北电力有限公司 | Protection act behavior intelligent analysis method based on multi-source recorded wave file |
| CN105974265B (en) * | 2016-04-29 | 2018-11-27 | 北京四方继保自动化股份有限公司 | A kind of electric network fault cause diagnosis method based on svm classifier technology |
| CN108445321A (en) * | 2018-03-19 | 2018-08-24 | 成都滕达科技有限公司 | A kind of relay protection fault intelligence Wave record method |
| CN109521327B (en) * | 2018-11-15 | 2021-03-30 | 贵州电网有限责任公司 | Distribution line fault reason comprehensive probability analysis method |
| CN109696591B (en) * | 2018-11-30 | 2021-07-30 | 南京国电南自电网自动化有限公司 | Testing method for intelligently acquiring fault recording based on ATS automatic testing platform |
| CN110850232B (en) * | 2019-11-13 | 2021-10-01 | 云南电网有限责任公司 | Power grid fault diagnosis system and method based on relay protection auxiliary decision system |
| CN112147446B (en) * | 2020-09-27 | 2022-03-15 | 广东电网有限责任公司佛山供电局 | Wave recording triggering method and system used in relay protection device test based on analog quantity |
| CN114594342B (en) * | 2022-03-21 | 2023-03-28 | 国网安徽省电力有限公司电力科学研究院 | Power distribution network ground fault judgment input waveform consistency processing method |
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