CN109143040A - A kind of wind power unit converter test method based on wave shape playback - Google Patents
A kind of wind power unit converter test method based on wave shape playback Download PDFInfo
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- CN109143040A CN109143040A CN201811223749.7A CN201811223749A CN109143040A CN 109143040 A CN109143040 A CN 109143040A CN 201811223749 A CN201811223749 A CN 201811223749A CN 109143040 A CN109143040 A CN 109143040A
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- wind power
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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
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/282—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere
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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
- G01R31/34—Testing dynamo-electric machines
- G01R31/343—Testing dynamo-electric machines in operation
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
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Abstract
A kind of wind power unit converter test method based on wave shape playback that the invention discloses a kind of, it is desirable to provide practical wind power unit converter test method based on wave shape playback.The test method is by collecting power grid physical fault data or using EM transient calculation procedure simulation fault data, data are exported as three-phase voltage, three-phase current signal by power amplifier, and it exports to wind power unit converter, the measured result of wind power unit converter and the difference of the calculated results are compared, the assessment result of wind power unit converter dynamic characteristic is obtained.This method can test the adaptability of various frequency sub-synchronous oscillations and work correctness wind power unit converter, and breaking through current field test can only be to the limitation that low voltage failure is verified.
Description
Technical field
The present invention relates to technical field of electric power detection, more particularly, to a kind of wind power unit converter based on wave shape playback
Test method.
Background technique
Wind power unit converter is input with voltage, current signal, is output with control instruction, is widely used in speed change wind
Motor group.Currently, wind power unit converter is under various Power System Disturbances and failure, if direct relation unit working properly
Safety and system safety, but are limited by various conditions at the scene, often can only be to wind power unit converter fault point
Working condition is tested, it is difficult to fully assess functional reliability of the wind power unit converter under various failures.
Summary of the invention
The present invention overcomes the disadvantages of the prior art, and wind power unit converter can be fully assessed various by providing one kind
The wind power unit converter test method based on wave shape playback of state under failure.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following technical solutions:
A kind of wind power unit converter test method based on wave shape playback comprising the following contents:
(1) it is low that typical single-phase fault data, phase to phase fault data, three-phase fault data, system that actual electric network occurred are collected
Frequency oscillation data and system high-frequency oscillation data, data include the three-phase voltage and three-phase current data of the same measuring point, actual measurement
Data sampling rate should be not less than 5kHz；
(2) in electromagnetic transient simulation software for calculation, corresponding simulation model is established, according to Wind turbines and the practical feelings of power grid
Condition, adjustment unit inertia, connection reactance size parameter, simulates the single-phase fault of different durations, phase to phase fault, three-phase fault, is
System low-frequency oscillation and system high-frequency oscillation obtain three-phase voltage and three-phase current that emulation obtains, and emulation data sampling rate should not
Less than 10kHz；
(3) by wind power unit converter access power amplifier to be tested, and parameter is inputted according to wind power unit converter, if
Voltage, the electric current no-load voltage ratio of power amplifier are set；
(4) on the basis of step (3), carry out wind power unit converter dynamic performance testing；According to specific requirements, selection is practical
Electric network fault data use simulated fault data, are exported data for three-phase voltage, three-phase current by power amplifier
Signal；
(5) single-phase fault, phase to phase fault, three-phase fault, low-frequency oscillation and higher-order of oscillation data are played back by power amplifier
To wind power unit converter, the output result of wind power unit converter and the calculated result of fault data are recorded, is tied as actual measurement
Fruit；
(6) single-phase fault, phase to phase fault, three-phase fault, low-frequency oscillation and higher-order of oscillation data are passed through into electromagnetic transient simulation meter
The simulation model that software is played back to Wind turbines is calculated, records the output of the simulation model of Wind turbines as a result, as fault data
The calculated results；
(7) the calculated results of measured result and fault data are compared, comparison obtains its dynamic characteristic.
Preferably, the electromagnetic transient simulation software for calculation is PSCAD or EMTDC.
Preferably, in the step (3), a length of 50ms, 90ms or 120ms when simulating different.
Preferably, the frequency of the low frequency oscillations data is 0.1-2.0Hz.
Preferably, the frequency of the system high-frequency oscillation is 5-30Hz.
Preferably, in the step (1), the collection of data is realized using wave shape playback device.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is flow chart of the invention.
When Fig. 2 is that wind power unit converter is working properly, the comparison diagram of current transformer measured result and the calculated results.
When Fig. 3 is wind power unit converter operation irregularity, the comparison diagram of current transformer measured result and the calculated results.
Specific embodiment
The following is a clear and complete description of the technical scheme in the embodiments of the invention, and those skilled in the art will
Understand, the following example is merely to illustrate the present invention, and should not be taken as limiting the scope of the invention.It is not specified in embodiment specific
Technology or conditions person described technology or conditions or carries out according to the literature in the art according to product description.It is used
Production firm person is not specified in reagent or instrument, is the conventional products that can be obtained by purchase.Obviously, described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel every other embodiment obtained under that premise of not paying creative labor belongs to the model that the present invention protects
It encloses.
A kind of wind power unit converter test method based on wave shape playback comprising the following contents:
(1) it is low that typical single-phase fault data, phase to phase fault data, three-phase fault data, system that actual electric network occurred are collected
Frequency oscillation data and system high-frequency oscillation data, data include the three-phase voltage and three-phase current data of the same measuring point, actual measurement
Data sampling rate should be not less than 5kHz；The collection of data is realized using wave shape playback device；
(2) in electromagnetic transient simulation software for calculation, corresponding simulation model is established, according to Wind turbines and the practical feelings of power grid
Condition, adjustment unit inertia, connection reactance size parameter, simulates the single-phase fault of different durations, phase to phase fault, three-phase fault, is
System low-frequency oscillation and system high-frequency oscillation obtain three-phase voltage and three-phase current that emulation obtains, and emulation data sampling rate should not
Less than 10kHz；
(3) by wind power unit converter access power amplifier to be tested, and parameter is inputted according to wind power unit converter, if
Voltage, the electric current no-load voltage ratio of power amplifier are set；
(4) on the basis of step (3), carry out wind power unit converter dynamic performance testing；According to specific requirements, selection is practical
Electric network fault data use simulated fault data, are exported data for three-phase voltage, three-phase current by power amplifier
Signal；
(5) single-phase fault, phase to phase fault, three-phase fault, low-frequency oscillation and higher-order of oscillation data are played back by power amplifier
To wind power unit converter, the output result of wind power unit converter and the calculated result of fault data are recorded, is tied as actual measurement
Fruit；
(6) single-phase fault, phase to phase fault, three-phase fault, low-frequency oscillation and higher-order of oscillation data are passed through into electromagnetic transient simulation meter
The simulation model that software is played back to Wind turbines is calculated, records the output of the simulation model of Wind turbines as a result, as fault data
The calculated results；
(7) the calculated results of measured result and fault data are compared, comparison obtains its dynamic characteristic.
Wherein, the electromagnetic transient simulation software for calculation is PSCAD or EMTDC.In the step (3), simulation is different
Shi Changwei 50ms, 90ms or 120ms.The frequency of the low frequency oscillations data is 0.1-2.0Hz.The system high-frequency oscillation
Frequency be 5-30Hz.
Embodiment
Emulation platform is established by taking 2MW unit as an example, and current transformer parameter, rated line voltage 690V, specified phase current are set
For 1673A；Three-phase, two-phase, single-phase typical fault are carried out, wind power unit converter output valve and calculated value are compared, to it
Dynamic characteristic is tested.Platform as shown in Figure 1 is set up, test apparatus is as shown in table 1.
1 testing equipment table of table
| Title | Model | Manufacturer |
| Power amplifier | PL661 | Beijing Ponovo Xinli Power System Instrument Co., Ltd. |
| Portable electric quantity (waveform) recorder analyser | TK8024 | Beijing is the same as control power system technology Co., Ltd |
| Three-phase phase volt ampere meter | LCT-CX304 | Baoding Lang Xin Electronic Science and Technology Co., Ltd. |
| High accuracy number multimeter | 8846A | FLUKE company |
It is as shown in Figure 2 and Figure 3 to compare its dynamic measurement results.The middle measured result and calculated result of Fig. 2 is almost the same, wind turbine
Group current transformer characteristic is qualified, and Fig. 3 measured result is inconsistent with calculated result, and wind power unit converter is unqualified.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (6)
1. a kind of wind power unit converter test method based on wave shape playback, it is characterised in that including the following contents:
(1) it is low that typical single-phase fault data, phase to phase fault data, three-phase fault data, system that actual electric network occurred are collected
Frequency oscillation data and system high-frequency oscillation data, data include the three-phase voltage and three-phase current data of the same measuring point, actual measurement
Data sampling rate should be not less than 5kHz；
(2) in electromagnetic transient simulation software for calculation, corresponding simulation model is established, according to Wind turbines and the practical feelings of power grid
Condition, adjustment unit inertia, connection reactance size parameter, simulates the single-phase fault of different durations, phase to phase fault, three-phase fault, is
System low-frequency oscillation and system high-frequency oscillation obtain three-phase voltage and three-phase current that emulation obtains, and emulation data sampling rate should not
Less than 10kHz；
(3) by wind power unit converter access power amplifier to be tested, and parameter is inputted according to wind power unit converter, if
Voltage, the electric current no-load voltage ratio of power amplifier are set；
(4) on the basis of step (3), carry out wind power unit converter dynamic performance testing；According to specific requirements, selection is practical
Electric network fault data use simulated fault data, are exported data for three-phase voltage, three-phase current by power amplifier
Signal；
(5) single-phase fault, phase to phase fault, three-phase fault, low-frequency oscillation and higher-order of oscillation data are played back by power amplifier
To wind power unit converter, the output result of wind power unit converter and the calculated result of fault data are recorded, is tied as actual measurement
Fruit；
(6) single-phase fault, phase to phase fault, three-phase fault, low-frequency oscillation and higher-order of oscillation data are passed through into electromagnetic transient simulation meter
The simulation model that software is played back to Wind turbines is calculated, records the output of the simulation model of Wind turbines as a result, as fault data
The calculated results；
(7) the calculated results of measured result and fault data are compared, comparison obtains its dynamic characteristic.
2. the wind power unit converter test method based on wave shape playback according to claim 1, it is characterised in that: the electricity
Magnetic transient emulation software for calculation is PSCAD or EMTDC.
3. the wind power unit converter test method based on wave shape playback according to claim 1, it is characterised in that: the step
Suddenly in (3), a length of 50ms, 90ms or 120ms when simulating different.
4. the wind power unit converter test method based on wave shape playback according to claim 1, it is characterised in that: the system
The frequency for low-frequency oscillation data of uniting is 0.1-2.0Hz.
5. the wind power unit converter test method based on wave shape playback according to claim 1, it is characterised in that: the system
The frequency of the system higher-order of oscillation is 5-30Hz.
6. the wind power unit converter test method based on wave shape playback according to claim 1, it is characterised in that: the step
Suddenly in (1), the collection of data is realized using wave shape playback device.
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| CN201811223749.7A CN109143040A (en) | 2018-10-19 | 2018-10-19 | A kind of wind power unit converter test method based on wave shape playback |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110879321A (en) * | 2019-11-29 | 2020-03-13 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | Wind power plant AVC substation performance test method based on actual power grid disturbance waveform |
| CN113723502A (en) * | 2021-08-27 | 2021-11-30 | 西安热工研究院有限公司 | Wind generating set frequency converter network side abnormity identification method and system based on current waveform |
| CN113848754A (en) * | 2021-09-26 | 2021-12-28 | 陕西航空电气有限责任公司 | Aircraft ground power supply monitor testing method based on semi-physical simulation |
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| 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 |
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2018
- 2018-10-19 CN CN201811223749.7A patent/CN109143040A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110879321A (en) * | 2019-11-29 | 2020-03-13 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | Wind power plant AVC substation performance test method based on actual power grid disturbance waveform |
| CN113723502A (en) * | 2021-08-27 | 2021-11-30 | 西安热工研究院有限公司 | Wind generating set frequency converter network side abnormity identification method and system based on current waveform |
| CN113848754A (en) * | 2021-09-26 | 2021-12-28 | 陕西航空电气有限责任公司 | Aircraft ground power supply monitor testing method based on semi-physical simulation |
| CN113848754B (en) * | 2021-09-26 | 2024-02-06 | 陕西航空电气有限责任公司 | Airplane ground power supply monitor test method based on semi-physical simulation |
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