CN108918924A - Complicated Periodic wave voltage simulation generator based on signal times die pressing type - Google Patents
Complicated Periodic wave voltage simulation generator based on signal times die pressing type Download PDFInfo
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- CN108918924A CN108918924A CN201811007925.3A CN201811007925A CN108918924A CN 108918924 A CN108918924 A CN 108918924A CN 201811007925 A CN201811007925 A CN 201811007925A CN 108918924 A CN108918924 A CN 108918924A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/28—Provision in measuring instruments for reference values, e.g. standard voltage, standard waveform
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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Abstract
A kind of Complicated Periodic wave voltage simulation generator based on signal times die pressing type, including：Waveform analysis module, Waveform composition module and waveform modelling output module, wherein：Waveform analysis module analyzes the swift waveform of operating condition Complicated Periodic wave voltage marking wave, obtain the proportional amount of direct current, fundamental wave and harmonic component under operating condition electric field, small signal of the Waveform composition module by function generator synthesis comprising certain components, proportional amount, for waveform modelling output module by amplifying to small signal multiplication of voltage, Fast simulation exports Complicated Periodic wave operating condition polarized electric field.The present invention has quickly analysis, synthesis, analog functuion.
Description
Technical field
The present invention relates to a kind of technology of transformer detection field, specifically a kind of answering based on signal times die pressing type
Miscellaneous period wave voltage simulation generator.
Background technique
The operating condition electric field in converter power transformer includes all multicomponents such as exchange, harmonic wave, DC component at present, existing
Space charge detection method lacks the actual operating mode that reliable, stable polarisation voltage source carrys out analogue transformer, correlative study
The polarisation voltage source of middle use is only capable of output DC voltage and simple 50Hz power frequency sinusoidal voltage.
In addition, due to the complexity of converter power transformer operating condition, DC component of the operating condition voltage under different conditions and
The ratio of harmonic component can change, and how quickly determine the proportional components of each component under different conditions, and accurately synthesize,
Operating condition voltage waveform under simulation output corresponding proportion, lacks effective implementation method and technological means at present.
Summary of the invention
The present invention is only capable of the office of output DC voltage and simple 50Hz power frequency sinusoidal voltage for existing polarisation voltage source
Limit, proposes a kind of Complicated Periodic wave voltage simulation generator based on signal times die pressing type, has quickly analysis, synthesis, mould
Quasi- function.
The present invention is achieved by the following technical solutions：
The present invention relates to a kind of Complicated Periodic wave voltage simulation generator based on signal times die pressing type, including：Waveform
Analysis module, Waveform composition module and waveform modelling output module, wherein：Waveform analysis module is to operating condition Complicated Periodic wave voltage
The swift waveform of marking wave is analyzed, and the proportional amount of direct current, fundamental wave and harmonic component under operating condition electric field, Waveform composition module are obtained
Small signal by function generator synthesis comprising certain components, proportional amount, waveform modelling output module pass through to small signal
Multiplication of voltage amplification, Fast simulation export Complicated Periodic wave operating condition polarized electric field.
The waveform analysis module includes：For importing the data of practical converter power transformer operating condition marking wave data
Input terminal imports in working state recording wave in quick Fu of FFT of the content ratio of direct current, fundamental wave and each harmonic for calculating analysis
Leaf transformation unit and the parameter output unit that the waveform analysis parameter obtained is calculated for exporting fft analysis.
The Waveform composition module includes：Function edit cell, for the digital signal files of specific waveforms to be imported
The data transmission unit and function generator of the memory of function generator, wherein：Function edit cell is according to waveform analysis unit
The component type and content ratio of middle extraction, generate the normalization digital signal file of specific waveforms needed for studying, and function occurs
Device reads the specific waveforms in memory and normalizes digital signal file, and exports the required specific waveforms of research.
The specific waveforms normalization digital signal file refers to：Each harmonic component that Fast Fourier Transform (FFT) is obtained
It is overlapped by frequency, and scaled down or amplification are so that the digital signal file that maximum amplitude is 1.
The synthesis exports specific algorithm：According to Calculation results are stated, each frequency component data is pressed into width point by point
Value is overlapped
The waveform modelling output module includes：Small signal voltage doubling unit and output protection unit, wherein：Small signal times
Unit is pressed to amplify the small signal proportion of specific waveforms of function generator synthesis output in Waveform composition unit, output protection unit
The input terminal of small signal voltage doubling unit is automatically cut off in external output loop puncture short to stop High voltage output.
The ratio enlargement is specifically realized using high-voltage amplifier.
Technical effect
Compared with prior art, technical effect of the invention is：Realize that quickly analysis operating condition is real simultaneously in set of system
Border wave recording or emulation gained waveform, and synthesize, simulate operating condition waveform, screen the certain components and combinations thereof in operating condition waveform
The function of being exported.
Detailed description of the invention
Fig. 1 is the system structure diagram of Complicated Periodic wave voltage simulative generator；
Fig. 2 is the ratio schematic diagram of each harmonic component virtual value and DC component obtained by FFT fast Fourier transform module；
Fig. 3 is the waveform diagram of waveform modelling output module output.
Specific embodiment
As shown in Figure 1, a kind of Complicated Periodic wave voltage simulation hair based on signal times die pressing type being related to for the present embodiment
Generating apparatus, including：Waveform analysis module, Waveform composition module, waveform modelling output module.
It bears voltage to certain type ± 500Kv converter station winding I valve side major insulation under specific run operating condition to emulate, by institute
It obtains data and waveform analysis module is imported by data input pin, analyzed it using FFT fast Fourier transform module, and
Select sample range for 40 times or less harmonic waves, analysis result is as shown in Figure 2.It is obvious several humorous under the specific run operating condition
Its ingredient of wave is：DC component 322kV, industrial frequency AC component virtual value 111.4kV, 3 subharmonic virtual value 39.7kV, 6 times humorous
Wave virtual value 9.2Kv, 9 subharmonic virtual value 15.2Kv, 11 subharmonic virtual value 17.8kV, 13 subharmonic virtual value 11.5Kv.
Parameter output module is transmitted to Waveform composition module for result is analyzed
In the Waveform composition module, the above-mentioned seven kinds of components of function editor module selection, which generate, normalizes file, then by
Data transmission module is imported into the memory of function generator, and function generator normalizes number according to the specific waveforms in memory
Signal file, specific waveforms needed for synthesis output research.
Small signal times die block in the waveform modelling output module closes function generator in Waveform composition module
At 4000 times of specific waveforms low level signal amplification of output, output waveform such as Fig. 3.If external output loop puncture short, output
Protective module will automatically cut off the input terminal of small signal times die block, to stop High voltage output.
In conclusion the Complicated Periodic wave voltage simulative generator of example according to the present invention, for high-tension apparatus in operating condition
Under practical receiving voltage can accomplish more accurately to simulate.Furthermore this generator can be selected flexibly according to the needs of users
Required harmonic wave is taken to study.
Above-mentioned specific implementation can by those skilled in the art under the premise of without departing substantially from the principle of the invention and objective with difference
Mode carry out local directed complete set to it, protection scope of the present invention is subject to claims and not by above-mentioned specific implementation institute
Limit, each implementation within its scope is by the constraint of the present invention.
Claims (7)
1. a kind of Complicated Periodic wave voltage simulation generator based on signal times die pressing type, which is characterized in that including：Waveform point
Module, Waveform composition module and waveform modelling output module are analysed, wherein：Waveform analysis module remembers operating condition Complicated Periodic wave voltage
The swift waveform of recording is analyzed, and the proportional amount of direct current, fundamental wave and harmonic component under operating condition electric field is obtained, and Waveform composition module is logical
Small signal of the function generator synthesis comprising certain components, proportional amount is crossed, waveform modelling output module passes through to small signal times
Press big, Fast simulation output Complicated Periodic wave operating condition polarized electric field.
2. Complicated Periodic wave voltage simulation generator according to claim 1, characterized in that the waveform analysis mould
Block includes：For importing the data input pin of practical converter power transformer operating condition marking wave data, being imported for calculating analysis
The FFT Fast Fourier Transform (FFT) unit of the content ratio of direct current, fundamental wave and each harmonic and for exporting FFT in working state recording wave
The parameter output unit for the waveform analysis parameter that analytical calculation obtains.
3. Complicated Periodic wave voltage simulation generator according to claim 1, characterized in that the Waveform composition mould
Block includes：The data for the memory that function edit cell, the digital signal file for that will correspond to waveform import function generator pass
Defeated unit and function generator, wherein：Function edit cell is according to component type and the content ratio extracted in waveform analysis unit
Example generates the normalization digital signal file of corresponding waveform, and function generator reads the correspondence waveform normalization number letter in memory
Number file exports corresponding waveform.
4. Complicated Periodic wave voltage simulation generator according to claim 3, characterized in that the correspondence waveform is returned
One change digital signal file refers to：Each harmonic component that Fast Fourier Transform (FFT) is obtained is overlapped by frequency, and equal proportion
It zooms in or out so that the digital signal file that maximum amplitude is 1
5. Complicated Periodic wave voltage simulation generator according to claim 3, characterized in that the function generator
Each frequency component data is overlapped point by point to obtain corresponding waveform by amplitude.
6. Complicated Periodic wave voltage simulation generator according to claim 1, characterized in that the waveform modelling is defeated
Module includes out：Small signal voltage doubling unit and output protection unit, wherein：Small signal voltage doubling unit is by letter in Waveform composition unit
The small signal proportion amplification of the correspondence waveform of number generator synthesis output, output protection unit is in external output loop puncture short
The input terminal of small signal voltage doubling unit is automatically cut off to stop High voltage output.
7. Complicated Periodic wave voltage simulation generator according to claim 6, characterized in that the ratio enlargement,
Specifically realized using high-voltage amplifier.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811007925.3A CN108918924A (en) | 2018-08-31 | 2018-08-31 | Complicated Periodic wave voltage simulation generator based on signal times die pressing type |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811007925.3A CN108918924A (en) | 2018-08-31 | 2018-08-31 | Complicated Periodic wave voltage simulation generator based on signal times die pressing type |
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| CN106502308A (en) * | 2016-09-20 | 2017-03-15 | 江苏大学 | A kind of wave generator system of ultrasonic pulse pumping signal and production method |
| CN206301192U (en) * | 2016-12-30 | 2017-07-04 | 黑龙江省计量检定测试院 | A kind of device for generating voltage signal |
| CN107121594A (en) * | 2017-06-29 | 2017-09-01 | 同济大学 | The decomposition of portable non-sine periodic signal and compound experiment device |
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| JP2005175750A (en) * | 2003-12-10 | 2005-06-30 | Yokogawa Electric Corp | Arbitrary waveform generator and test signal generating device using the same |
| CN1831541A (en) * | 2006-04-14 | 2006-09-13 | 北京航空航天大学 | Multichannel synchronous sinusoidal signal generator |
| CN103560769A (en) * | 2013-11-04 | 2014-02-05 | 中国电子科技集团公司第四十一研究所 | Arbitrary waveform generator and method for generating arbitrary waveform |
| CN106502308A (en) * | 2016-09-20 | 2017-03-15 | 江苏大学 | A kind of wave generator system of ultrasonic pulse pumping signal and production method |
| CN106405464A (en) * | 2016-10-10 | 2017-02-15 | 国网四川省电力公司电力科学研究院 | Method for generating traceable random waveform analog power signals |
| CN206301192U (en) * | 2016-12-30 | 2017-07-04 | 黑龙江省计量检定测试院 | A kind of device for generating voltage signal |
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Application publication date: 20181130 |