CN103278715B - Power equipment test method - Google Patents
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- CN103278715B CN103278715B CN201310182876.8A CN201310182876A CN103278715B CN 103278715 B CN103278715 B CN 103278715B CN 201310182876 A CN201310182876 A CN 201310182876A CN 103278715 B CN103278715 B CN 103278715B
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Abstract
A kind of power equipment test method, comprising: according to the Test Information of power equipment preventive trial code, sets up the test figure model of all kinds of power equipment; Obtain the test figure of each power equipment each test generation according to test figure model, test figure is kept in electric power generation system, and is associated in equipment account; The equipment account information of tested power equipment is read from equipment account; According to test figure model and the equipment account information of tested power equipment, from electric power generation system, obtain corresponding test figure, and judge whether test figure exists potential faults.Above-mentioned power equipment test method, for test figure application provides basis, corresponding test figure is obtained to power equipment running state analysis according to test figure model, reduce the workload of experimental data processing, improve the low and accuracy rate of efficiency, the state that automated analysis test figure detects power equipment can be realized, meet the demand for development of current power system automation.
Description
Technical field
The present invention relates to electric power project engineering field, particularly relate to a kind of power equipment test method.
Background technology
Power equipment test is an important step in the work of equipment operation and maintenance, analyzed by the test figure produced test, abnormal, the defect state of equipment under test can be understood in time, judge whether the index of pilot project exceeds the requirement of preventive trial code, and then judge whether power equipment exists potential faults.
Traditional power equipment test method, in each power equipment test, because power equipment type is different, pilot project difference, the test figure of a large amount of differentiation can be produced, for the project of different power equipments, test, the data file that various test figure produces different pieces of information structure, data layout comes, when analyzing test figure, need to artificially collect all previous test figure, then more various data file finds out data exception, judges whether power equipment exists potential faults.
In above-mentioned power equipment test method, the workload of Data Analysis Services process is large and cannot realize the analysis of robotization, is difficult to carry out on a large scale, efficiency is low, and this data analysing method is also easily made mistakes, poor accuracy, does not meet the demand for development of current power system automation.
Summary of the invention
Based on this, be necessary that the efficiency for prior art is low, the problem of poor accuracy, a kind of power equipment test method is provided.
A kind of power equipment test method, comprises the steps:
Step S1: according to the Test Information of power equipment preventive trial code, sets up the test figure model of all kinds of power equipment;
Step S2: the test figure obtaining each the test generation of each power equipment according to described test figure model, is kept at described test figure in electric power generation system, and is associated in equipment account;
Step S3: the equipment account information reading tested power equipment from described equipment account;
Step S4: according to test figure model and the equipment account information of described tested power equipment, obtains corresponding test figure, and judges whether described test figure exists potential faults from described electric power generation system.
Above-mentioned power equipment test method, carrying out modelling by setting test figure model to test figure is kept in electric power generation system, for test figure application provides basis, corresponding test figure is obtained to power equipment running state analysis according to test figure model, reduce the workload of experimental data processing, improve the low and accuracy rate of efficiency, the state that automated analysis test figure detects power equipment can be realized, meet the demand for development of current power system automation.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of the power equipment test method of an embodiment;
Fig. 2 is the structural representation of the main-transformer test figure model of an embodiment;
Fig. 3 is the structural representation of the 500kV oil immersed type main-transformer test figure model of an embodiment;
Fig. 4 is the structural representation of the oil dissolved gas stratographic analysis project of an embodiment;
Fig. 5 is the sub-project data structure schematic diagram of an embodiment;
Fig. 6 is main-transformer A phase sleeve pipe pilot project change trend curve schematic diagram;
Fig. 7 is main-transformer ABC three-phase test on bushing comparison of item schematic diagram;
Fig. 8 is that main-transformer equipment dielectric loss pilot project of the same type compares schematic diagram.
Embodiment
Be described in detail below in conjunction with the embodiment of accompanying drawing to power equipment test method of the present invention.
Shown in Figure 1, Fig. 1 is the process flow diagram of the power equipment test method of an embodiment, comprises the steps:
Step S1: according to the Test Information of power equipment preventive trial code, sets up the test figure model of all kinds of power equipment.
Concrete, according in power equipment preventive trial code, about carrying out the information such as testing equipment, pilot project, content of the test of preventive trial, be based upon the test figure model structure of all kinds of power equipments in this code,
In one embodiment, described test figure model adopts multilayer tree form, with the device class-unit type-electric pressure of hierarchy-test position-Test Speciality-pilot project-sub-project for content, sub-project comprises title, data type, unit, precision, criterion and analyzes dimension.
Shown in Figure 2, Fig. 2 is the structural representation of the main-transformer test figure model of an embodiment, and wherein, device class is main-transformer test figure model, and unit type comprises oil immersed type main-transformer, SF6 main-transformer and dry type main-transformer; Electric pressure comprises 500kV, 220kV, 110kV and following and 35kV and following four electric pressures.
Shown in Figure 3, Fig. 3 is the structural representation of the 500kV oil immersed type main-transformer test figure model of an embodiment, and wherein, test position comprises body and X phase sleeve pipe; Test Speciality comprises high pressure specialty and specialty chemical.Pilot project comprises: winding D.C. resistance, the insulation resistance of winding deformation test, the AC voltage withstand test of winding and sleeve, iron core and clamp insulation resistance, punching bolt, yoke clip piece, colligation steel band, iron core, winding pressure ring and shielding etc., partial discharge test, infrared detection (belonging to body part high pressure specialty above); Oil dissolved gas stratographic analysis, micro-water, gas content of oil, furfural content in oil, granularity in oil, outer shape, water soluble acid, acid number, flash-point (remaining silent), interfacial tension, tan δ, voltage breakdown, specific insulation, greasy filth and sediment, active sulfur (belonging to body part specialty chemical above); The insulation resistance of winding and sleeve, absorptance or polarization index, the tan of winding and sleeve, the tan δ of condenser bushing and capacitance (belonging to X phase casing high pressure specialty above); Oil dissolved gas stratographic analysis (belonging to X phase sleeve pipe specialty chemical).
Shown in Figure 4, Fig. 4 is the structural representation of the oil dissolved gas stratographic analysis project of an embodiment, wherein, sub-project comprises: hydrogen (H2), methane (CH4), ethane (C2H6), ethene (C2H4), acetylene (C2H2), carbon monoxide (CO), carbon dioxide (CO2), total hydrocarbon.
Shown in Figure 5, Fig. 5 is the sub-project data structure schematic diagram of an embodiment, comprises title, data type, unit, precision, criterion and analyzes dimension.
In criterion, the threshold values that the different conditions of this sub-project test figure is corresponding can be set, such as, abnormal threshold values is set, judge prompting for carrying out exception, defect threshold values is set, for carrying out defect dipoles prompting.
Step S2: the test figure obtaining each the test generation of each power equipment according to described test figure model, is kept at described test figure in electric power generation system, and is associated in equipment account.
In one embodiment, step S2 specifically comprises:
Step S201, according to the test figure that the process of the test of each sub-project of described test figure model typing produces.
Step S202, generates the data file of setting form by described test figure according to described test figure model.
Step S203, carries out classification by the type of data file foundation power equipment and is kept in electric power generation system.
Step S204, is associated to power equipment corresponding to equipment account by the numbering of power equipment in described data file.
Above-mentioned steps, is kept in electric power generation system according to test figure model by test figure, may be used for follow-up test data analyzer.
Step S3: the equipment account information reading tested power equipment from described equipment account.
Concrete, the corresponding relation associated by step S2, reads the equipment account information of its correspondence, for follow-up test data analysis from equipment account according to tested power equipment.
Step S4: according to test figure model and the equipment account information of described tested power equipment, obtains corresponding test figure, and judges whether described test figure exists potential faults from described electric power generation system.
In this step, utilize the test figure model that different power equipment is corresponding, obtain test figure and analyze, the potential faults carrying out robotization judges.
In one embodiment, described step S4 specifically comprises:
According to test figure model and the equipment account information of tested power equipment, from electric power generation system, obtain the historical test data that test produces.
Described historical test data is judged according to the criterion of test figure model specification.
If exceed the abnormal threshold values in described criterion, then point out this power equipment sub-project test abnormality or prompt facility extremely.
If exceed the defect threshold values in described criterion, then in test report, mark this power equipment existing defects.
In above-described embodiment, by the threshold values in the criterion of test figure model specification, judge the test figure of each pilot project, realize the abnormal judgement of test figure and automatic early-warning function.
In one embodiment, described step S4 specifically comprises:
According to test figure model and the equipment account information of tested power equipment, the historical test data that the several times test obtaining the sub-project of required monitoring from electric power generation system produces.
The test figure produced according to described historical test data and current test forms the trend curve of this sub-project.
The rate of change of test figure is calculated according to described trend curve.
Judge whether described rate of change exceedes the threshold values set in power equipment preventive trial code, if exceed, then point out power equipment to there is potential faults.
Shown in Figure 6, Fig. 6 is main-transformer A phase sleeve pipe pilot project change trend curve schematic diagram, it is the trend map formed in all previous test figure of the test of #1 main transformer interval A phase bushing in figure, by test figure model, the all previous test figure of automatic acquisition is analyzed, and generate the figure that takes out stitches as illustrated in the drawing, calculate rate of change, computing formula is:
In above formula, η is the rate of change of twice testing inspection in front and back, m
kfor the trial value of this time, m
k-1for the trial value of last time, by η value situation of change after each test, when exceeding the threshold values set in preventive trial code, then judge that this power equipment exists potential faults, and make corresponding alarm prompt.
In one embodiment, described step S4 specifically comprises:
According to test figure model and the equipment account information of tested power equipment, the three-phase test data that the three-phase subset several times test obtaining this power equipment from electric power generation system produces.
Three-phase change trend curve and three-phase averaged curve is formed according to described three-phase test data.
Balance between the three-phase judging three-phase subset according to described three-phase change trend curve and three-phase averaged curve and otherness.
If described balance and otherness exceed the threshold values set in power equipment preventive trial code, then the three-phase subset of power equipment is pointed out to there is potential faults.
Shown in Figure 7, Fig. 7 is main-transformer ABC three-phase test on bushing comparison of item schematic diagram, be in 110kV transformer test in figure, the comparison of # main transformer interval, 110kV XX station ABC three-phase test project change trend curve, by test figure model, the all previous test figure of automatic acquisition is analyzed, and generate comparison diagram as illustrated in the drawing, if the balance shown in comparison diagram and otherness exceed the threshold values set in power equipment preventive trial code, then judge that the three-phase subset of power equipment exists potential faults, make corresponding prompting.
In one embodiment, described step S4 also comprises:
According to described test figure model and equipment account information, from electric power generation system, obtain the test figure that the test of same model power equipment several times produces.
The change trend curve of described power equipment is formed according to the test figure of each model.
The performance state of each power equipment is monitored according to described change trend curve.
Shown in Figure 8, Fig. 8 is that main-transformer equipment dielectric loss pilot project of the same type compares schematic diagram, be in 110kV transformer test in figure, the comparison of main-transformer equipment dielectric loss pilot project change trend curve of the same type, by test figure model, all previous test figure of automatic acquisition is analyzed, and generates comparison diagram as illustrated in the drawing, the function of same category of device lateral comparison can be realized further, realize prediction and analysis equipment degradation and development trend.
Power equipment test method of the present invention, according to modeled equipment test data, can automatic analysis equipment run unusual condition, the fault of rapid assay device and ruuning situation, Timeliness coverage equipment built-in problem and outside cause abnormal reason, avoid the generation of the person or equipment major accident.
In addition, provide the method for test data analyzer, the test figure produced by all previous test, data analysis function and graphic exhibition comparing function are provided.。
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, 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 power equipment test method, is characterized in that, comprises the steps;
Step S1: according to the Test Information of power equipment preventive trial code, sets up the test figure model of all kinds of power equipment;
Step S2: the test figure obtaining each the test generation of each power equipment according to described test figure model, is kept at described test figure in electric power generation system, and is associated in equipment account;
Step S3: the equipment account information reading tested power equipment from described equipment account;
Step S4: according to test figure model and the equipment account information of described tested power equipment, obtains corresponding test figure, and judges whether described test figure exists potential faults from described electric power generation system.
2. power equipment test method according to claim 1, it is characterized in that, described test figure model adopts multilayer tree form, with the device class-unit type-electric pressure of hierarchy-test position-Test Speciality-pilot project-sub-project for content, sub-project comprises title, data type, unit, precision, criterion and analyzes dimension.
3. power equipment test method according to claim 2, is characterized in that, specifically comprise in step S2:
According to the test figure that the process of the test of each sub-project of described test figure model typing produces;
According to described test figure model, described test figure is generated the data file of setting form;
The type of data file foundation power equipment is carried out classification to be kept in electric power generation system;
The numbering of power equipment in described data file is associated to power equipment corresponding to equipment account.
4. the power equipment test method according to Claims 2 or 3, is characterized in that, described step S4 specifically comprises:
According to test figure model and the equipment account information of tested power equipment, from electric power generation system, obtain the historical test data that test produces;
Described historical test data is judged according to the criterion of test figure model specification;
If exceed the abnormal threshold values in described criterion, then point out this power equipment sub-project test abnormality or prompt facility extremely;
If exceed the defect threshold values in described criterion, then in test report, mark this power equipment existing defects.
5. the power equipment test method according to Claims 2 or 3, is characterized in that, described step S4 specifically comprises:
According to test figure model and the equipment account information of tested power equipment, the historical test data that the several times test obtaining the sub-project of required monitoring from electric power generation system produces;
The test figure produced according to described historical test data and current test forms the trend curve of this sub-project;
The rate of change of test figure is calculated according to described trend curve;
Judge whether described rate of change exceedes the threshold values set in power equipment preventive trial code, if exceed, then point out power equipment to there is potential faults.
6. the power equipment test method according to Claims 2 or 3, is characterized in that, described step S4 specifically comprises:
According to test figure model and the equipment account information of tested power equipment, the three-phase test data that the three-phase subset several times test obtaining this power equipment from electric power generation system produces;
Three-phase change trend curve and three-phase averaged curve is formed according to described three-phase test data;
Balance between the three-phase judging three-phase subset according to described three-phase change trend curve and three-phase averaged curve and otherness;
If described balance and otherness exceed the threshold values set in power equipment preventive trial code, then the three-phase subset of power equipment is pointed out to there is potential faults.
7. power equipment test method according to claim 1, is characterized in that, described step S4 also comprises:
According to described test figure model and equipment account information, from electric power generation system, obtain the test figure that the test of same model power equipment several times produces;
The change trend curve of described power equipment is formed according to the test figure of each model;
The performance state of each power equipment is monitored according to described change trend curve.
8. power equipment test method according to claim 1, is characterized in that, described power equipment comprises transformer.
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| CN107328994A (en) * | 2017-07-17 | 2017-11-07 | 国家电网公司 | Insulation Resistance of Transformer experimental rig and method |
| CN107977775A (en) * | 2017-11-15 | 2018-05-01 | 中国南方电网有限责任公司超高压输电公司广州局 | A kind of oil-immersed power transformer oiling test data management analysis expert system |
| CN109193615A (en) * | 2018-07-17 | 2019-01-11 | 吴怀诚 | Electric power data analysis method |
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