CN105044491A - Electric power fault transient state data exchanging and analyzing method based on development of NET technology - Google Patents
Electric power fault transient state data exchanging and analyzing method based on development of NET technology Download PDFInfo
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Abstract
The invention discloses an electric power fault transient state data exchanging and analyzing method based on development of NET technology, which utilizes fully fledged component technology, class and packaging in NET to conduct analysis on electric power transient state data that meet COMTRADE format standard. The method also provides users with displayed analysis in the form of wave patterns, harmonic analysis, phase/order analysis, impedance analysis, power analysis, power angle analysis, frequency analysis, differential flow analysis, vector analysis and functions of a formula editor. The method is also capable of enlarging or narrowing displayed patterns in the form of waves in horizontal or longitudinal direction. The method enables any displayed pattern narrowed in horizontal direction to be restored to its original state of not being narrowed in horizontal direction. For electric power fault transient state data of wave recorders from different producers, the method of the invention is provided with an expansion function interface which means that electric power fault transient state date in non-COMTRADE format standard of a wave recorder producer are firstly converted to electric power fault transient state data in COMTRADE format standard before analysis are conducted. This makes the method secure and transplantable. Furthermore, pointer and manual memory management can be abandoned, thus programming becomes more flexible.
Description
Technical field
The present invention relates to Automation of Electric Systems microcomputer protective relay field and computer software technology application, in particular a kind of power failure Temporal Data analytical approach based on NET technological development.
Background technology
Along with people are to the continuous growth of electricity needs, electric system scale is also more and more huger, becomes increasingly complex, more and more intelligence, and its security is also more and more important.Along with the development of electric system scale, in power system development process, achieve rapid progress as the requisite failure wave-recording technology of power system fault analysis.
Power failure Temporal Data can be recorded electric system and to break down the change of front and back system waveform, and the reason occurred for research fault, rule and various protection act behavior provide necessary data supporting.
Power failure Temporal Data is generally recorded the automatic record of microcomputer protecting device of wave energy by special wave recording device or band, overall process voltage, electric current and microcomputer protecting device changed before and after fault carries out dynamically recording.Power failure Temporal Data needs to carry out treatment and analysis by corresponding power failure data analysing method, could make analysis and inspection to the problem such as failure cause, fault type.Due to Lu Bo product, manufacturer is numerous, and the power failure Temporal Data different formats of different Lu Bo product manufacturers, mostly follow the internal standard of oneself, so be difficult to develop a power failure Temporal Data analytical approach can analyzing all Lu Bo product manufacturers.Electrical power system transient data com TRADE standard defines for the file layout containing the transient-wave obtained from electric system or electric power system model and event data.
The many employings of formal version power failure Temporal Data analytical approach VC, VB or Delphi development language that existing market exists is developed, but existing analytical approach is single thread and component pattern, pointer and manual memory management, also exist the defect of the low and portability difference of security.
Summary of the invention
For the deficiency that prior art exists, the object of the invention is to provide a kind of power failure Temporal Data analytical approach based on NET technological development, by analyzing the Temporal Data meeting electrical power system transient data com TRADE format standard, there is good security and portability, support multithreading and component pattern, and pointer and manual memory management can be abandoned, allow programming have more dirigibility.
To achieve these goals, the present invention realizes by the following technical solutions:
1., based on a power failure Temporal Data analytical approach for NET technological development, it is characterized in that, described method comprises as follows:
(1) data conversion step; There is provided non-COMTRADE format standard power failure Temporal Data to COMTRADE format standard power failure Temporal Data translation interface to Ge Lubo product manufacturer, be converted to the power failure Temporal Data of COMTRADE format standard with the power failure Temporal Data of the non-COMTRADE format standard provided by each manufacturer record ripple product;
(2) analytical procedure is carried out to the data file of the power failure Temporal Data meeting COMTRADE format standard; First, after opening the data file meeting COMTRADE format standard; Then, judge that whether this data file is legal, if illegal, then prompt for invalid data, file open failed, operation terminates;
If legal, then enter the analysis of this data file, it comprises as follows:
(21) shape information analysis; The form of the ListView form carried with C# lists the analog quantity information in the moment that the instantaneous value of current point place cycle, effective value, maximal value, minimum value and maximum/little value occur; And with the moment that the number of times of the form display switch quantitative change position of ListView form and displacement occur;
(22) frequency analysis; Multiple harmonic analysis is carried out to current point position, and utilizes AxMSChart20Lib.AxMSChart chart control to provide figure display and ListView to provide form to show two kinds of analysis result display modes;
(23) phase, sequence component analysis: to current point position according to the curtage three-way passageway selected, calculate the positive sequence of current point position, negative phase-sequence and zero sequence phasor and the PictureBox control utilizing C# to carry carries out polar plot describes display, in ListView form, show corresponding numerical value simultaneously;
(24) impedance analysis: according to the voltage and current passage of selection and the correlation parameter of correspondence, respectively analytical calculation is carried out to the line-to-ground impedance of current point, element unilateral impedance and element phase to phase impedance, and depict Vector operation result on PictureBox polar plot;
(25) power analysis: automatically calculate each point according to the three-dimensional voltage channel selected and three-dimensional current channel and gain merit or idle numerical value, generate temporary access road, in waveform display frame display, and can in order to again to analyze;
(26) merit angle is analyzed: according to the generator quadrature axis reactance value of the Generator end three-dimensional current channel selected, Generator end three-dimensional voltage channel, main transformer high-pressure side three-dimensional voltage channel and input, automatic generation generator terminal voltage power-angle curve and main transformer high side voltage power-angle curve, waveform display frame shows, and can in order to again to analyze;
(27) frequency analysis: automatically generate corresponding frequency channel according to by the passage selected, and show in waveform display frame, and can in order to again to analyze;
(28) differ from flow analysis: according to each side three-way passageway selected and each side mode of connection and each survey load voltage value, CT once with secondary current value, automatic generation difference flow analysis result curve, and show in waveform display frame, and can in order to again to analyze;
(29) polar plot analysis: according to the curtage passage selected, the vector of selected passage is drawn on polar plot to current point, and the information listing the angle of selected passage, amplitude, real part and imaginary numbers in the table;
(30) current point analysis: the information such as place period of current point, effective value, sampling rate, relative instant, definitely moment to be calculated according to corresponding principle and the ActiveX Techniques utilizing C# corresponding is presented at the corresponding position of software interface.
(3) formula editors calculation procedure; First, input the electric parameters channel capacity name that will generate, then whether judgment variable name is legal, re-enters if illegal; If legal, then selector channel attribute, and judge that whether channel attributes is legal, reselect channel attributes if legal; If legal, then calculate according to the algorithm formula that this electric parameters passage is corresponding, generate new channel capacity and show main graphical interface at waveform and demonstrate the waveform drawn through computing.
Further, it also comprises data analysis additional step, and this step comprises as follows:
The horizontal convergent-divergent of waveform: horizontal magnification is carried out to display waveform or reduces;
The longitudinal convergent-divergent of waveform: vertical magnification is carried out to display waveform or reduces;
Original scale: waveform is shown the original state returned to without convergent-divergent;
Setting of printing: the information that print paper size, new line and back gauge are set;
Print Preview: can first print preview effect before printing.
Further, the method that in described step (1), non-COMTRADE format standard power failure Temporal Data is converted to COMTRADE format standard power failure Temporal Data is: first select the data manufacturer needing conversion, then judge whether manufacturer exists, if manufacturer does not exist, the translation interface not providing this manufacturer is then described, then reminding user contact developer increases interface support; If manufacturer exists, then can point out the data file and configuration file position selecting to need conversion, click automatic switching button after selecting properly and carry out data conversion.
The present invention is based on C#NET technology to pass through meeting COMTRADE format standard electrical power system transient data analysis, there is provided waveform graph display analysis, frequency analysis, phase/sequence component analysis, impedance analysis, power analysis, the analysis of merit angle, frequency analysis, difference flow analysis, polar plot analysis, impedance analysis and formula editors function to user, and can horizontal and vertical amplification be carried out to ripple plotting table and reduce and under scaled size state, return to arbitrarily the original state without convergent-divergent in length and breadth in length and breadth; For the non-COMTRADE format standard power failure Temporal Data of different Lu Bo product manufacturer, the invention provides Interface Expanding function, the non-COMTRADE format standard power failure Temporal Data of corresponding Lu Bo product manufacturer is first converted to COMTRADE format standard electrical power system transient data, then analyzes.The complete object-oriented of C# language, supports distributed, has good security and portability, supports multithreading and component pattern, and can abandon pointer and manual memory management, allow programming have more dirigibility.
Accompanying drawing explanation
The present invention is described in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is data flow path switch figure of the present invention;
Fig. 2 is data analysis flowcharts of the present invention;
Fig. 3 is formula editors process flow diagram of the present invention;
Fig. 4 is data analysis subsidiary function process flow diagram of the present invention.
Embodiment
The technological means realized for making the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with embodiment, setting forth the present invention further.
The present invention is the power failure Temporal Data analytical approach based on C#NET technological development, and it is the versatility power failure Temporal Data analytical approach for COMTRADE format standard electrical power system transient data mining; By to meeting COMTRADE format standard electrical power system transient data analysis, there is provided waveform graph display analysis, frequency analysis, phase/sequence component analysis, impedance analysis, power analysis, the analysis of merit angle, frequency analysis, difference flow analysis, polar plot analysis, impedance analysis and formula editors function to user, and can horizontal and vertical amplification be carried out to ripple plotting table and reduce and under scaled size state, return to arbitrarily the original state without convergent-divergent in length and breadth in length and breadth; It is described in detail as follows:
In analytical approach of the present invention, software agent function is divided into four large functional modules: data transformation interface functional module, analytic function module, formula editors functional module, supplemental functionality.
One, data converting function module provides non-COMTRADE format standard power failure Temporal Data to COMTRADE format standard power failure Temporal Data translation interface to Ge Lubo product manufacturer, is converted to COMTRADE format standard power failure Temporal Data with the non-COMTRADE format standard power failure Temporal Data provided by each manufacturer record ripple product.User enters data converting function module after opening analytical approach herein, first the data manufacturer needing conversion is selected, if manufacturer does not exist, then read-me does not provide the translation interface of this manufacturer, program automatically prompting user contact developer can increase interface support, if existed, software can point out data file and the configuration file position selecting to need translation data, clicks automatic switching button and carry out data conversion after selecting properly; If Fig. 1 is data converting function process flow diagram.
Two, the data file of analytic function module to COMTRADE format standard power failure Temporal Data is analyzed.After analytical approach opening function opens the data file of power failure Temporal Data of COMTRADE format standard herein, software automatically show full tunnel without scaled waveform figure.Cutting Fig. 2 is analytic function schematic diagram, and its analytical approach comprises as follows
1, shape information:
(1) analog quantity: the form of the ListView form carried with C# lists the information such as the moment of the instantaneous value of current point place cycle, effective value, maximal value, minimum value and maximum/little value appearance;
(2) switching value: the moment occurred with the number of times of the form display switch quantitative change position of ListView form and displacement;
2, frequency analysis: be defaulted as 5 sub frequency analysis, by manually arranging overtone order, the scope of setting is 1-47, frequency analysis is carried out to current point position, AxMSChart20Lib.AxMSChart chart control can be utilized to provide figure display and ListView to provide form to show two kinds of analysis result display modes;
3, phase/sequence component analysis: to current point according to the curtage three-way passageway selected, can select to align PictureBox control that sequence, negative phase-sequence and zero sequence phasor utilize C# to carry to carry out polar plot and describe display, in ListView form, show corresponding numerical value simultaneously;
4, impedance analysis: according to the voltage and current passage of selection and the correlation parameter of correspondence, respectively analytical calculation is carried out to the line-to-ground impedance of current point, element unilateral impedance and element phase to phase impedance, and depict Vector operation result on PictureBox polar plot;
5, power analysis: automatically calculate each point according to the three-dimensional voltage channel selected and three-dimensional current channel and gain merit or idle (can select) numerical value, generate temporary access road, in waveform display frame display, and can in order to again to analyze;
6, merit angle is analyzed: according to the generator quadrature axis reactance value of the Generator end three-dimensional current channel selected, Generator end three-dimensional voltage channel, main transformer high-pressure side three-dimensional voltage channel and input, automatic generation generator terminal voltage power-angle curve and main transformer high side voltage power-angle curve, waveform display frame shows, and can in order to again to analyze;
7, frequency analysis: automatically generate corresponding frequency channel according to by the passage selected, and show in waveform display frame, and can in order to again to analyze;
8, differ from flow analysis: according to each side (2-8 side) three-way passageway selected and each side mode of connection and each survey load voltage value, CT once with secondary current value, automatic generation difference flow analysis result curve, and show in waveform display frame, and can in order to again to analyze;
9, polar plot analysis: according to the curtage passage selected, the vector of selected passage is depicted on PictureBox polar plot to current point, and the information listing the angle of selected passage, amplitude, real part and imaginary numbers in the table;
10, current point analysis: the information such as place period of current point, effective value, sampling rate, relative instant, definitely moment to be calculated according to corresponding principle and the ActiveX Techniques utilizing C# corresponding is presented at the corresponding position of software interface.
Three, formula editors functional module is by the built-in computing sum functions (professional user also can manually add qualified compute mode) of a large amount of software, specific calculation is carried out to one or more electric parameters, generate new electric parameters passage, and it can be used as new passage for analysis, and graphic software platform goes out the waveform drawn through computing.Fig. 3 is formula editors process flow diagram:
Formula editors can simply add, subtract, take advantage of, except arithmetic, also can sue for peace, be averaging, ask absolute value, sinusoidal, cosine, evolution, frequency departure, effective value, signal distortion, phase differential, impedance magnitude, impedance phase, active power, reactive power, harmonic amplitude, harmonic phase, phase shift, positive sequence, negative phase-sequence, zero sequence, the calculating that Sudden Changing Rate etc. are complicated, professional user also manually can add other compute mode qualified, and each edited result can be stored, the variable stored can be selected at any time to edit later, edited result is stored in corresponding text.Formula editors provides audit function to edited result, checks to generate corresponding passage or input channel variable name store, in order to calling with during post analysis by carrying out execution.
Four, supplemental functionality, Fig. 4 is supplemental functionality schematic diagram:
Supplemental functionality is the indispensable subsidiary function of data analysis.
1, the horizontal convergent-divergent of waveform: can horizontal magnification be carried out to display waveform or reduce;
2, the longitudinal convergent-divergent of waveform: can vertical magnification be carried out to display waveform or reduce;
3, original scale: waveform is shown the original state returned to without convergent-divergent;
4, setting of printing: the information such as print paper size, new line and back gauge are set;
5, Print Preview: can first print preview effect before printing;
Print: provide printing function for waveform display and analysis result.
For the power failure Temporal Data of different Lu Bo product manufacturer, the invention provides Interface Expanding function, the non-COMTRADE format standard power failure Temporal Data of corresponding Lu Bo product manufacturer is first converted to COMTRADE format standard electrical power system transient data, then analyzes.
Analytical approach of the present invention adopts C# language to realize, based on the NET platform technology in Windows programming with its own strategic significance, the component technology of a large amount of employing NET maturation, the technology such as integrated application class, COM realizes the striding course communication between encapsulation with system, and utilizes Win32API technology to realize and mutual between Windows system.The complete object-oriented of C# language, supports distributed, has good security and portability, supports multithreading and component pattern, and can abandon pointer and manual memory management, allow software simulating of the present invention have more dirigibility.
More than show and describe ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (4)
1., based on a power failure Temporal Data analytical approach for NET technological development, it is characterized in that, described method comprises as follows:
(1) non-COMTRADE format standard power failure Temporal Data switch process; There is provided non-COMTRADE format standard power failure Temporal Data to COMTRADE format standard power failure Temporal Data translation interface to Ge Lubo product manufacturer, be converted to COMTRADE format standard power failure Temporal Data with the non-COMTRADE format standard power failure Temporal Data provided by each manufacturer record ripple product;
(2) analytical procedure is carried out to the data file of the power failure Temporal Data of COMTRADE format standard; First, after opening the data file of COMTRADE format standard Fault transient data; Then, judge that whether this data file is legal, if illegal, then prompt for data illegal, file open failed, operation terminates;
If legal, then enter the analysis of this data file, it comprises as follows:
(21) shape information analysis; The form of the ListView form carried with C# lists the analog quantity information in the moment that the instantaneous value of current point place cycle, effective value, maximal value, minimum value and maximum/little value occur; And with the moment that the number of times of the form display switch quantitative change position of ListView form and displacement occur;
(22) frequency analysis; Multiple harmonic analysis is carried out to current point position, and utilizes AxMSChart20Lib.AxMSChart chart control to provide figure display and ListView to provide form to show two kinds of analysis result display modes;
(23) phase, sequence component analysis: to current point position according to the curtage three-way passageway selected, calculate the positive sequence of current point position, negative phase-sequence and zero sequence phasor and the PictureBox control utilizing C# to carry carries out polar plot describes display, in ListView form, show corresponding numerical value simultaneously;
(24) impedance analysis: according to the voltage and current passage of selection and the correlation parameter of correspondence, respectively analytical calculation is carried out to the line-to-ground impedance of current point, element unilateral impedance and element phase to phase impedance, and depict Vector operation result on PictureBox polar plot;
(25) power analysis: automatically calculate each point according to the three-dimensional voltage channel selected and three-dimensional current channel and gain merit or idle numerical value, generate temporary access road, in waveform display frame display, and can in order to again to analyze;
(26) merit angle is analyzed: according to the generator quadrature axis reactance value of the Generator end three-dimensional current channel selected, Generator end three-dimensional voltage channel, main transformer high-pressure side three-dimensional voltage channel and input, automatic generation generator terminal voltage power-angle curve and main transformer high side voltage power-angle curve, waveform display frame shows, and can in order to again to analyze;
(27) frequency analysis: automatically generate corresponding frequency channel according to by the passage selected, and show in waveform display frame, and can in order to again to analyze;
(28) differ from flow analysis: according to each side three-way passageway selected and each side mode of connection and each survey load voltage value, CT once with secondary current value, automatic generation difference flow analysis result curve, and show in waveform display frame, and can in order to again to analyze;
(29) polar plot analysis: according to the curtage passage selected, the vector of selected passage is depicted on PictureBox polar plot to current point, and the information listing the angle of selected passage, amplitude, real part and imaginary numbers in the table;
(30) current point analysis: the information such as place period of current point, effective value, sampling rate, relative instant, definitely moment to be calculated according to corresponding principle and the ActiveX Techniques utilizing C# corresponding is presented at the corresponding position of software interface.
(3) formula editors calculation procedure; First, input the electric parameters channel capacity name that will generate, then whether judgment variable name is legal, re-enters if illegal; If legal, then selector channel attribute, and judge that whether channel attributes is legal, reselect channel attributes if legal; If legal, then calculate according to the algorithm formula that this electric parameters passage is corresponding, generate new channel capacity and show main graphical interface at waveform and demonstrate the waveform drawn through computing.
2. power failure Temporal Data according to claim 1 exchanges data analysing method, and it is characterized in that, it also comprises data analysis additional step, and this step comprises as follows:
The horizontal convergent-divergent of waveform: horizontal magnification is carried out to display waveform or reduces;
The longitudinal convergent-divergent of waveform: vertical magnification is carried out to display waveform or reduces;
Original scale: waveform is shown the original state returned to without convergent-divergent;
Setting of printing: the information that print paper size, new line and back gauge are set;
Print Preview: can first print preview effect before printing.
3. power failure Temporal Data analytical approach according to claim 1, it is characterized in that, the method that in described step (1), non-COMTRADE format standard power failure Temporal Data is converted to COMTRADE format standard power failure Temporal Data is: first select the data manufacturer needing conversion, then judge whether manufacturer exists, if manufacturer does not exist, the translation interface not providing this manufacturer is then described, then reminding user contact developer increases interface support; If manufacturer exists, then can point out the data file and configuration file position selecting to need conversion, click automatic switching button after selecting properly and carry out data conversion.
4. power failure Temporal Data according to claim 1 exchanges data analysing method, it is characterized in that, in described step (3), formula editors provides audit function to edited result, check and generate corresponding passage or input channel variable name store by executions can be carried out, prepare against and call with during post analysis.
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Application publication date: 20151111 |