CN107144808A - A kind of dynamic characteristic test method of power transducer - Google Patents
A kind of dynamic characteristic test method of power transducer Download PDFInfo
- Publication number
- CN107144808A CN107144808A CN201710301003.2A CN201710301003A CN107144808A CN 107144808 A CN107144808 A CN 107144808A CN 201710301003 A CN201710301003 A CN 201710301003A CN 107144808 A CN107144808 A CN 107144808A
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- Prior art keywords
- power transducer
- phase
- fault
- dynamic characteristic
- power
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
Abstract
A kind of dynamic characteristic test method of power transducer; it is characterized in that using numerical model analysis emulation platform; the failures such as simulating grid three-phase fault, phase to phase fault, single-phase fault; by contrasting the measured value of power transducer and the difference of theoretical value, the dynamic characteristic of power transducer can be tested.
Description
Technical field
The present invention relates to a kind of power plant electricity field, more particularly to a kind of dynamic characteristic test side of power transducer
Method.
Background technology
Power transducer, using three-phase voltage, electric current as input, is output with active power, reactive power, power factor etc.,
It is widely used in the speed-adjusting and control system and Protection System of Turbin of generating set.At present, only for the quiet of power transducer
The method of testing of step response, but power transducer dynamic characteristic is to the governing system of unit and the dynamic of Protection System of Turbin
Characteristic influence is all larger.
The content of the invention
In view of the drawbacks described above of prior art, it is an object of the invention to provide a kind of dynamic characteristic of power transducer
Method of testing, is capable of the dynamic characteristic of measured power transmitter.
The purpose of the present invention realized by such technical scheme, the dynamic characteristic test method of power transducer,
It includes：Methods described step is as follows：
S1：Set up one machine infinity bus system simulation model on numerical model analysis emulation tool, and the simulation model
In generator terminal low-pressure side three-phase voltage and three-phase current input power transmitter；
S2：On the basis of step S1, relative set is carried out to the no-load voltage ratio of power transducer according to simulation parameters, and
The stationary measurements of measured power transmitter；
S3：Near terminal fault, far-end fault, and the output result of recording power transmitter are set on the basis of step S2；
S4：The calculated value of measurement result value and emulation platform to power transducer is contrasted, and obtains dynamic spy
Property.
Further, in the step S1, the numerical model analysis emulation tool includes ADPSS and RTDS.
Further, in the step S2, the no-load voltage ratio of the power transducer includes PT no-load voltage ratios, CT no-load voltage ratios.
Further, in the step S3, the near terminal fault includes near-end three-phase fault, near-end phase to phase fault, near-end list
Phase fault；The far-end fault includes distal end three-phase fault, distal end phase to phase fault, distal end single-phase fault.
Further, in the step S4, the content of contrast for the power transducer actual measured results value with it is described
The time maximum and minimum value of the calculated value of emulation platform.
By adopting the above-described technical solution, the present invention has the advantage that：
Power transducer is using three-phase voltage, electric current as input, using active power, reactive power, power factor as output,
Infinite bus power system simulation model is set up on digital-to-analogue emulation platform instrument, typical near terminal fault and distal end event are carried out in a model
Barrier, contrasts the time maximum and minimum value of the measurement result value of power transducer and the calculated value of emulation platform, can
Obtain dynamic characteristic test result.
Other advantages, target and the feature of the present invention will be illustrated in the following description to a certain extent, and
And to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, Huo Zheke
To be instructed from the practice of the present invention.The target and other advantages of the present invention can be wanted by following specification and right
Book is sought to realize and obtain.
Brief description of the drawings
The brief description of the drawings of the present invention is as follows：
Fig. 1 is structured flowchart of the invention；
Fig. 2 is l-G simulation test wiring diagram of the invention；
Fig. 3 is the power transducer measured value and emulation platform theoretical value correlation curve of static characteristic；
Fig. 4 is the power transducer measured value and emulation platform theoretical value correlation curve of dynamic characteristic；
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.
Embodiment：As shown in Figure 1 to 4, a kind of dynamic characteristic test method of power transducer, it is characterised in that：Institute
State method and step as follows：
S1：Set up one machine infinity bus system simulation model on numerical model analysis emulation tool, and the simulation model
In generator terminal low-pressure side three-phase voltage and three-phase current input power transmitter；
S2：On the basis of step S1, relative set is carried out to the no-load voltage ratio of power transducer according to simulation parameters, and
The stationary measurements of measured power transmitter；
S3：Near terminal fault, far-end fault, and the output result of recording power transmitter are set on the basis of step S2；
S4：The calculated value of measurement result value and emulation platform to power transducer is contrasted, and obtains dynamic spy
Property.
In the step S1, the numerical model analysis emulation tool includes ADPSS and RTDS.
In the step S2, the no-load voltage ratio of the power transducer includes PT no-load voltage ratios, CT no-load voltage ratios.
In the step S3, the near terminal fault includes near-end three-phase fault, near-end phase to phase fault, near-end single-phase fault；
The far-end fault includes distal end three-phase fault, distal end phase to phase fault, distal end single-phase fault.
In the step S4, the content of contrast is the actual measured results value and the emulation platform of the power transducer
Calculated value time maximum and minimum value.
As shown in Fig. 2 voltage and current signal (two sub-values) is transferred to power transducer and high speed recording by ADPSS respectively
The power signal of milliampere level current signal is turned voltage device through overcurrent again and is changed into volt level current signal by instrument, power transducer
Power signal, electric current turn voltage device again by volt level current signal power signal transmissions give high speed oscillograph.
The present embodiment emulation tool uses power system all-digital real-time simulation device ADPSS, and oscillograph is using portable
Electricity (waveform) recorder analyser TK8024, carries out following steps in a device：
1) emulation platform, generator Xd=2.0, Xt=0.16 are set up by taking 1000MW units as an example.
2) power transducer parameter is set, and PT no-load voltage ratios are 22000:100=220, CT no-load voltage ratio are 25000:5=5000；
3) static test result is contrasted, power transducer output valve is consistent with calculated value；As shown in figure 3, selection is quiet
Polymorphic segment data, the evaluations absolute deviation for calculating measured value and theoretical value understands that it meets Accuracy of Power Measurement and wanted for 0.5%
Ask, meet requirement of dispatching from the factory；
4) near-end three-phase fault, near-end phase to phase fault, near-end single-phase fault and distal end three-phase fault, the event of distal end two-phase are carried out
Barrier, distal end single-phase fault, contrast power transducer output valve and calculated value, test its dynamic characteristic, are moved
Step response comparing result.
During voltage, current disturbing, the difference of its measured value and actual value is as shown in Figure 4.The maximum of theoretical value is
The 238MW times are 41.4s, the maximum of measured value be the 320MW times be 41.7s, its maximum error is larger, illustrates the work(
Rate transmitter error in dynamic process is excessive, may cause to judge malfunction by accident using the control and protection system of its signal or refuse
It is dynamic.
Above-mentioned technical proposal is employed, the present invention has the advantage that：
Power transducer is using three-phase voltage, electric current as input, using active power, reactive power, power factor as output,
Infinite bus power system simulation model is set up on digital-to-analogue emulation platform instrument, typical near terminal fault and distal end event are carried out in a model
Barrier, contrasts the time maximum and minimum value of the measurement result value of power transducer and the calculated value of emulation platform, can
Obtain dynamic characteristic test result.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
The present invention is described in detail good embodiment, it will be understood by those within the art that, can be to skill of the invention
Art scheme is modified or equivalent substitution, and without departing from the objective and scope of the technical program, it all should cover in the present invention
Right among.
Claims (5)
1. a kind of dynamic characteristic test method of power transducer, it is characterised in that：Methods described step is as follows：
S1：One machine infinity bus system simulation model, and the generator terminal of the simulation model are set up on numerical model analysis emulation tool
In low-pressure side three-phase voltage and three-phase current input power transmitter；
S2：On the basis of step S1, relative set is carried out to the no-load voltage ratio of power transducer according to simulation parameters, and test
The stationary measurements of power transducer；
S3：Near terminal fault, far-end fault, and the output result of recording power transmitter are set on the basis of step S2；
S4：The calculated value of actual measured results value and emulation platform to power transducer is contrasted, and obtains dynamic spy
Property.
2. the dynamic characteristic test method of power transducer as claimed in claim 1, it is characterised in that：In the step S1,
The numerical model analysis emulation tool includes ADPSS and RTDS.
3. the dynamic characteristic test method of power transducer as claimed in claim 1, it is characterised in that：In the step S2,
The no-load voltage ratio of the power transducer includes PT no-load voltage ratios, CT no-load voltage ratios.
4. the dynamic characteristic test method of power transducer as claimed in claim 1, it is characterised in that：In the step S3,
The near terminal fault includes near-end three-phase fault, near-end phase to phase fault, near-end single-phase fault；The far-end fault includes distal end three
Phase fault, distal end phase to phase fault, distal end single-phase fault.
5. the dynamic characteristic test method of power transducer as claimed in claim 1, it is characterised in that：In the step S4,
The content of contrast for the calculated value of actual measured results value and the emulation platform of the power transducer time most
Big value and minimum value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710301003.2A CN107144808A (en) | 2017-05-02 | 2017-05-02 | A kind of dynamic characteristic test method of power transducer |
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| CN201710301003.2A CN107144808A (en) | 2017-05-02 | 2017-05-02 | A kind of dynamic characteristic test method of power transducer |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107783005A (en) * | 2017-10-11 | 2018-03-09 | 广东小天才科技有限公司 | For the method, apparatus of equipment fault diagnosis, equipment, system and storage medium |
| CN107966672A (en) * | 2017-12-05 | 2018-04-27 | 国网重庆市电力公司电力科学研究院 | The generator power transmitter test method and system of meter and synchronous phasor measurement |
| CN108318844A (en) * | 2017-12-19 | 2018-07-24 | 中国神华能源股份有限公司 | The test method and device of power transducer |
| CN108459219A (en) * | 2018-02-08 | 2018-08-28 | 中国电力科学研究院有限公司 | A kind of method and system for testing excitation system |
| CN108536116A (en) * | 2018-02-08 | 2018-09-14 | 中国电力科学研究院有限公司 | A kind of test method and system of governing system |
| CN108535558A (en) * | 2018-02-08 | 2018-09-14 | 中国电力科学研究院有限公司 | A kind of test method and system of electrical power stabilization device |
| CN108957172A (en) * | 2018-06-07 | 2018-12-07 | 国电南瑞科技股份有限公司 | Transmitter test macro and method based on real-time digital-to-analogue analogue system |
| CN109283917A (en) * | 2018-10-23 | 2019-01-29 | 国网福建省电力有限公司 | Nuclear power unit exciter control system test method based on wave shape playback |
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| CN106526519A (en) * | 2016-10-28 | 2017-03-22 | 黑龙江省电力科学研究院 | Active power transmitter transient characteristic index evaluation method based on ADPSS simulation system |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107783005A (en) * | 2017-10-11 | 2018-03-09 | 广东小天才科技有限公司 | For the method, apparatus of equipment fault diagnosis, equipment, system and storage medium |
| CN107783005B (en) * | 2017-10-11 | 2020-07-31 | 广东小天才科技有限公司 | Method, device, equipment, system and storage medium for equipment fault diagnosis |
| CN107966672A (en) * | 2017-12-05 | 2018-04-27 | 国网重庆市电力公司电力科学研究院 | The generator power transmitter test method and system of meter and synchronous phasor measurement |
| CN108318844A (en) * | 2017-12-19 | 2018-07-24 | 中国神华能源股份有限公司 | The test method and device of power transducer |
| CN108459219A (en) * | 2018-02-08 | 2018-08-28 | 中国电力科学研究院有限公司 | A kind of method and system for testing excitation system |
| CN108536116A (en) * | 2018-02-08 | 2018-09-14 | 中国电力科学研究院有限公司 | A kind of test method and system of governing system |
| CN108535558A (en) * | 2018-02-08 | 2018-09-14 | 中国电力科学研究院有限公司 | A kind of test method and system of electrical power stabilization device |
| CN108536116B (en) * | 2018-02-08 | 2022-04-05 | 中国电力科学研究院有限公司 | Testing method and system of speed regulating system |
| CN108459219B (en) * | 2018-02-08 | 2022-06-21 | 中国电力科学研究院有限公司 | Method and system for testing excitation system |
| CN108957172A (en) * | 2018-06-07 | 2018-12-07 | 国电南瑞科技股份有限公司 | Transmitter test macro and method based on real-time digital-to-analogue analogue system |
| CN109283917A (en) * | 2018-10-23 | 2019-01-29 | 国网福建省电力有限公司 | Nuclear power unit exciter control system test method based on wave shape playback |
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Application publication date: 20170908 |