CN101566677A - Test result evaluation method of fault recorder - Google Patents
Test result evaluation method of fault recorder Download PDFInfo
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- CN101566677A CN101566677A CNA2009100848908A CN200910084890A CN101566677A CN 101566677 A CN101566677 A CN 101566677A CN A2009100848908 A CNA2009100848908 A CN A2009100848908A CN 200910084890 A CN200910084890 A CN 200910084890A CN 101566677 A CN101566677 A CN 101566677A
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Abstract
The invention relates to a test result evaluation method of a fault recorder. The method carries out overall evaluation and quantitative analysis on the basis of the performance of the fault recorder of an electric power system according to the detection standard of the electric power system industry, researches and invents a test result evaluation method which is applicable to the fault recorder of electric power lines and generator transformer set, and provides intuitive test basis for type selection test of the fault recorder of the large electric power system.
Description
Technical field
The present invention relates to the appraisal procedure of fault oscillograph, particularly based on the evaluation of test result of electric system genset and line fault oscillograph.
Background technology
Along with increasing day by day fast and increase remote, the large capacity transmission demand of electric load, in order to guarantee the safe and stable operation of electric system, operational factor and running status are monitored and write down more important.Manufacturer is a lot of at fault oscillograph, selects suitable oscillograph to bring very big difficulty to the user.The secundum legem of fault oscillograph detection is in the past tested, and can not require producer to accomplish for the problem beyond the standard.Particularly the standard quoted of line fault oscillograph still is to formulate in 1999.Present most of oscillograph producer can both be easily by production-type test.This brings very burden for domestic each big electrical network product type selecting, and the present invention is on the reference standard basis and in conjunction with the experience that over several years oscillograph is detected, and the fault oscillograph test result is carried out the science assessment.
Summary of the invention
In order to guarantee the safe and stable operation of electric system, monitor important operational factor and running status exactly with register system.Therefore require fault oscillograph can register system when big disturbance; as the change procedure of the relevant system electrical quantity (I, U, P, Q, f) after the generation of accidents such as short trouble, system oscillation, collapse of frequency, collapse of voltage and the action behavior of relay protection and automatic safety device; and require the fault oscillograph recorded data reliable; meet the demands, undistorted.
Manufacturer is a lot of in view of fault oscillograph, select suitable fault oscillograph to bring very big difficulty to the user, therefore, we are by carrying out type Selection Test to multiple oscillograph device, to its performance and action behavior go deep into, careful research, grasped the firsthand information of various oscillographs developments, exploitation, operation.Study and invent out the test result evaluation method of a set of fault oscillograph.The detection of oscillograph except that the EMC check, with the data of a large amount of relevant oscillograph performance index, is utilized sine function
Make the funtcional relationship of the number y that deducts points and test number x; test data is carried out quantification treatment; guaranteed that conclusion (of pressure testing) is accurate, objective, appraisal result is simple and clear, for the lectotype selection of design department and run unit and the safe operation of protection provide technical basis and assurance.
Comprise about the standard detection project that fault oscillograph detects according to relevant national standard:
(1) inspection of the range of linearity of alternating voltage, electric current and phase equalization;
(2) the record performance inspection of aperiodic component;
(3) the observability inspection of harmonic wave;
(4) the resolution inspection of switching value;
(5) meritorious and reactive power record performance is checked;
(6) inspection of frequency record performance;
(7) hf channel signal record ripple performance checking;
(8) inspection of starting performance and starting value;
(9) long-term low-voltage, long-term low frequency registering capacity are checked;
(10) security inspection of record data;
(11) recording data files retrieval and the mode of searching are checked;
(12) Zhuan Zhi teletransmission functional check;
(13) clock synchronization functional check;
(14) the recording mode inspection of data;
(15) the device recording capacity is checked;
(16) big short-circuit current registering capacity is checked;
(17) fault localization;
(18) power consumption and power supply influence test;
(19) EMC test of electromagnetic disturbance;
(20) environmental test: high and low temperature, damp heat test etc.;
(21) mechanical vibration test: collision, vibration and impact experiment etc.;
At the detection test findings of fault oscillograph, the data of all oscillograph performance index are carried out quantification treatment, make the appraisement system of a cover science, guaranteed that conclusion (of pressure testing) is accurate, objective, appraisal result is simple and clear.
The test obatained score is determined that by test result necessarily to have certain funtcional relationship and must be a piecewise function of separation with the standard-required for mark and test data so.For example the standard-required error be no more than ± 10%, the separation of this function is 10% so.Supposing that now full marks are 100 minutes, is 60 minutes at just qualified our the regulation obatained score of 10% this point, and we consider should not deduct points at 0 o'clock and should detain 40 fens at 10% o'clock in 0～10%.Learn that like this number of deducting points is is that the increasing function of independent variable concentrates between 0.5%～6.0% us mostly in conjunction with the test data of testing the experience specification product for many years again and wishes that the slope that function increases progressively between them wants big with the test data, last we draw the curve of a similar sine function first quartile according to the function track, and we quote sine function between 0～10% like this
If this has n data k=40/n so.We quote simple Y=ax+b function for the data processing beyond 10%.Above b is the difference of separation, the value of a required at separation ax=k,
The y maximum is got 100 (intact this branch button at most).Obtain at last the number y that deducts points and test data x relation as shown in Figure 2.
The functional relation of number y and test data x of wherein deducting points is:
To choosing of test result data, unlike adopting in the past mean value, but adopt each data the relative error correspondence the number sum of deducting points (preventing positive and negative error counteracting like this).Still adopt mean value (considering that the drift influence is bigger) during for some special data such as the examination of hf channel valley 0.1V performance.
The invention has the beneficial effects as follows:
1, can scientific evaluation to the detection test findings of fault oscillograph, conclusion is simple and clear;
2, can be in the type Selection Test of a plurality of fault oscillographs, accurately, the quality of each oscillograph performance relatively objectively, for the lectotype selection of design department and run unit and the safe operation of protection provide technical basis and assurance.
Description of drawings
Fig. 1 is the flow chart of steps of method of the present invention;
Fig. 2 detects the deduct points relation curve synoptic diagram of number y and test data x of test findings.
Embodiment
The present invention is based on the test result evaluation method of electric system genset and line fault oscillograph.We are example with certain type Selection Test of economizing grid line road fault oscillograph, specifically tell about application of the present invention.
Referring to shown in Figure 1, the test result evaluation method of fault oscillograph of the present invention specifically may further comprise the steps:
(1) according to the test method of DL/T 663-1999 " 220kV～500kV electric power system fault dynamically recording device detects and requires " regulation, we choose the record performance of aperiodic component and test;
(2) use relay-protection tester, the how tame electric power system failure oscillograph that networks is carried out 5 tests non-periodic, calculate each relative error (x%), without average error (preventing positive and negative error counteracting).
(3) do not allow to surpass 10% according to this test error of standard-required, promptly c=10 calculates the pairing deduction of points mark of relative error respectively 5 times.
When x≤10, the number of deducting points
When x＞10, the number y=0.8x+5 branch of deducting points (being no more than 30 fens)
(4), be the actual deduction of points of the record performance mark of aperiodic component with the number addition of deducting points of 5 tests.
(5) assess according to the actual deduction of points situation of every fault oscillograph participating in type selecting, finally compare the quality of every fault oscillograph performance.List certain in the table one and economized the record performance of each producer's aperiodic component of electrical network, table two is the importance that detects performance according to fault oscillograph, multiply by a weight coefficient again according to above-mentioned evaluation method, each manufacturer of certain electrical network that draws, fault oscillograph main performance comparative result, this evaluation result can provide directly perceived, accurate and comprehensive type selecting result for the user as can be seen from the table, has improved type selecting efficient, has guaranteed the type selecting quality.
Method in the present embodiment can be with the index that quantizes, and as the record performance of aperiodic component etc., the main performance of fault oscillograph is given more fully to estimate.Along with the increase of the complicated degree of electrical network and improving constantly of power system safety and stability service ability, the appraisal procedure of the fault oscillograph that the present invention proposes, can select stable performance for electrical network, safe and reliable running gear, as the in-service monitoring assistant analysis means of power system safety and stability operation, it has advance, practicality and operability.It will be applied in the engineering reality more, has popularizing application prospect widely.
Invention has been described according to specific exemplary embodiment herein.It will be conspicuous carrying out suitable replacement to one skilled in the art or revise under not departing from the scope of the present invention.Exemplary embodiment only is illustrative, rather than to the restriction of scope of the present invention, scope of the present invention is by appended claim definition.
Certain economizes the record performance of electrical network fault oscillograph aperiodic component table one
Claims (1)
1, a kind of test result evaluation method of fault oscillograph is characterized in that may further comprise the steps:
When (1) many fault oscillographs carry out type Selection Test, choose suitable test event as required according to the examination criteria of power industry fault oscillograph, described test event comprises:
(1) inspection of the range of linearity of alternating voltage, electric current and phase equalization;
(2) the record performance inspection of aperiodic component;
(3) the observability inspection of harmonic wave;
(4) the resolution inspection of switching value;
(5) meritorious and reactive power record performance is checked;
(6) inspection of frequency record performance;
(7) hf channel signal record ripple performance checking;
(8) inspection of starting performance and starting value;
(9) long-term low-voltage, long-term low frequency registering capacity are checked;
(10) security inspection of record data;
(11) recording data files retrieval and the mode of searching are checked;
(12) Zhuan Zhi teletransmission functional check;
(13) clock synchronization functional check;
(14) the recording mode inspection of data;
(15) the device recording capacity is checked;
(16) big short-circuit current registering capacity is checked;
(17) fault localization;
(18) power consumption and power supply influence test;
(19) EMC test of electromagnetic disturbance;
(20) environmental test: high and low temperature, damp heat test etc.;
(21) mechanical vibration test: collision, vibration and impact experiment etc.;
(2) utilize relay protection of power system tester, radiation field EVAC (Evacuation Network Computer Model), electrical fast transient burst generator, electrostatic discharge simulation device, HFD-Relay Tester, Impulse Tester, Hi-pot Tester, insulation resistance meter, GDJS, electric oscillation platform, impact testing table, dynamic simulator system that the test event of choosing is tested, each test result calculations is gone out its relative error x%;
(3) test data is carried out quantification treatment:
Requirement according to each examination criteria, suppose that test error is no more than ± c%, wherein c is a constant, assessment mark full marks are 100 minutes, the separation of this function is exactly c% so, the number of deducting points of this separation c% correspondence is 40 minutes, adopts the relative error of test and the funtcional relationship of the assessment number of deducting points, and test data is carried out quantification treatment;
A establishes y and is the assessment number of being deducted points when the relative error x%≤c% of test, the curve of the similar sine function first quartile of its funtcional relationship, thereby between 0%～c%, just have sine function to concern:
Wherein test item has n data, k=40/n so, and like this, the relative error by n data measuring calculates corresponding number y1, y2, the y3 of deducting points ... yn, summation obtains the gross score that this test item is detained to the deduction of points number;
B uses function: y=ax+b when the relative error x%＞c% of test, wherein b is the difference of separation, the value of b is required to satisfy relation: ax=k at separation, wherein
The y maximum occurrences is 100, obtain at last the relation of the number y that deducts points and test data x;
(4) according to result of calculation fault oscillograph is carried out performance evaluation:
The establishing criteria requirement, all the detection performance index with fault oscillograph all according to above-mentioned evaluation method, calculate every deduction of points mark, and the statistics total points draws last evaluation result.
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| CNA2009100848908A CN101566677A (en) | 2009-05-26 | 2009-05-26 | Test result evaluation method of fault recorder |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101833054A (en) * | 2010-04-27 | 2010-09-15 | 北京航空航天大学 | Method aiming at evaluating capability of test configuration on continuously diagnosing faults |
| CN101873002A (en) * | 2010-05-28 | 2010-10-27 | 四川大学 | Distributed integration oscillograph mother board and parallel bus structure |
| CN101882989A (en) * | 2010-05-28 | 2010-11-10 | 四川大学 | Synchronization method based on distributed-type integrated recorder parallel buses |
| CN102193045A (en) * | 2010-03-19 | 2011-09-21 | 江苏核电有限公司 | Method for checking consistency of analog quantity signal channels |
| CN103954925A (en) * | 2014-05-04 | 2014-07-30 | 国家电网公司 | Fault recorder dynamic testing method based on RTDS real-time simulation |
| CN106022719A (en) * | 2016-05-16 | 2016-10-12 | 华北电力科学研究院有限责任公司 | Large-scale generator insulation data management system |
| CN106226721A (en) * | 2016-09-22 | 2016-12-14 | 许昌许继软件技术有限公司 | A kind of fault oscillograph starting performance method of testing and system |
| CN104050375B (en) * | 2014-06-20 | 2017-02-22 | 国家电网公司 | Optimal model selection method for improving operating state measuring precision of voltage transformers |
| CN107991550A (en) * | 2017-11-13 | 2018-05-04 | 北京四方继保自动化股份有限公司 | A kind of protective device check method based on analysis with fault wave recorder |
| CN110108554A (en) * | 2018-02-01 | 2019-08-09 | 株式会社岛津制作所 | Test result evaluation method and Material Testing Machine |
| CN110347642A (en) * | 2019-07-08 | 2019-10-18 | 南京国电南自电网自动化有限公司 | A kind of multifile multichannel analysis tool |
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2009
- 2009-05-26 CN CNA2009100848908A patent/CN101566677A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102193045A (en) * | 2010-03-19 | 2011-09-21 | 江苏核电有限公司 | Method for checking consistency of analog quantity signal channels |
| CN101833054B (en) * | 2010-04-27 | 2011-12-07 | 北京航空航天大学 | Method aiming at evaluating capability of test configuration on continuously diagnosing faults |
| CN101833054A (en) * | 2010-04-27 | 2010-09-15 | 北京航空航天大学 | Method aiming at evaluating capability of test configuration on continuously diagnosing faults |
| CN101873002A (en) * | 2010-05-28 | 2010-10-27 | 四川大学 | Distributed integration oscillograph mother board and parallel bus structure |
| CN101882989A (en) * | 2010-05-28 | 2010-11-10 | 四川大学 | Synchronization method based on distributed-type integrated recorder parallel buses |
| CN101873002B (en) * | 2010-05-28 | 2012-08-15 | 四川大学 | Distributed integration oscillograph mother board and parallel bus structure |
| CN101882989B (en) * | 2010-05-28 | 2012-10-31 | 四川大学 | Synchronization method based on distributed-type integrated recorder parallel buses |
| CN103954925A (en) * | 2014-05-04 | 2014-07-30 | 国家电网公司 | Fault recorder dynamic testing method based on RTDS real-time simulation |
| CN104050375B (en) * | 2014-06-20 | 2017-02-22 | 国家电网公司 | Optimal model selection method for improving operating state measuring precision of voltage transformers |
| CN106022719A (en) * | 2016-05-16 | 2016-10-12 | 华北电力科学研究院有限责任公司 | Large-scale generator insulation data management system |
| CN106226721A (en) * | 2016-09-22 | 2016-12-14 | 许昌许继软件技术有限公司 | A kind of fault oscillograph starting performance method of testing and system |
| CN106226721B (en) * | 2016-09-22 | 2018-11-09 | 许昌许继软件技术有限公司 | A kind of fault oscillograph starting performance test method and system |
| CN107991550A (en) * | 2017-11-13 | 2018-05-04 | 北京四方继保自动化股份有限公司 | A kind of protective device check method based on analysis with fault wave recorder |
| CN110108554A (en) * | 2018-02-01 | 2019-08-09 | 株式会社岛津制作所 | Test result evaluation method and Material Testing Machine |
| CN110108554B (en) * | 2018-02-01 | 2021-09-24 | 株式会社岛津制作所 | Test result evaluation method and material testing machine |
| CN110347642A (en) * | 2019-07-08 | 2019-10-18 | 南京国电南自电网自动化有限公司 | A kind of multifile multichannel analysis tool |
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Effective date of registration: 20130129 Address after: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 China Electric Power Research Institute of the Ministry of science and technology Applicant after: China Electric Power Research Institute Applicant after: State Grid Corporation of China Address before: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 China Electric Power Research Institute of the Ministry of science and technology Applicant before: China Electric Power Research Institute |
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