CN107085157A - Wind power plant power quality data acquisition system and real-time comparison method - Google Patents
Wind power plant power quality data acquisition system and real-time comparison method Download PDFInfo
- Publication number
- CN107085157A CN107085157A CN201710420455.2A CN201710420455A CN107085157A CN 107085157 A CN107085157 A CN 107085157A CN 201710420455 A CN201710420455 A CN 201710420455A CN 107085157 A CN107085157 A CN 107085157A
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000012360 testing method Methods 0.000 claims abstract description 84
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 28
- 238000004891 communication Methods 0.000 claims abstract description 28
- 238000013480 data collection Methods 0.000 claims description 4
- 241000208340 Araliaceae Species 0.000 claims description 3
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims description 3
- 235000003140 Panax quinquefolius Nutrition 0.000 claims description 3
- 238000012937 correction Methods 0.000 claims description 3
- 235000008434 ginseng Nutrition 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000013441 quality evaluation Methods 0.000 description 1
- 238000012372 quality testing Methods 0.000 description 1
Classifications
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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
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a kind of wind power plant power quality data acquisition system and real-time comparison method, the problem of data acquisition distortion of long duration easily occurred during electric energy quality test is without being found is solved.It is included in power network bus（1）On be respectively arranged with current transformer（2）And voltage transformer（3）, current transformer（2）Pass through testing current line（4）With electric energy quality test instrument（5）Current input terminal link together, voltage transformer（3）Pass through voltage tester line（6）With electric energy quality test instrument（5）Voltage input end link together, electric energy quality test instrument（5）With DC power supply（7）Link together, in electric energy quality test instrument（5）On be connected with bidirectional wireless communication unit（8）, in central control room upper computer（9）On be connected with another bidirectional wireless communication unit（10）.Improve the data acquisition quality of electric energy quality test, it is to avoid the failure of long-time gathered data.
Description
Technical field
The present invention relates to a kind of wind power plant power quality data acquisition system, more particularly to a kind of wind power plant quality of power supply number
According to acquisition system and real-time comparison method.
Background technology
It is that portable electric energy quality tester is first connected to wind power plant when carrying out electric energy quality test to wind power plant
On master control room observing and controlling screen cabinet, power quality data collection is carried out to the corresponding measuring point of wind power plant, in data acquisition, it is necessary to
To the continuous acquisition data of measuring point progress more than 24 hours；After data acquisition terminates, electric energy quality test instrument is removed, then to adopting
The data collected carry out Treatment Analysis, whether meet relevant criterion with the quality of power supply for judging wind power plant.Surveyed by the quality of power supply
When examination instrument is connected on the observing and controlling screen cabinet of wind power plant master control room, often occur following several situations：（1）Because the quality of power supply is surveyed
There is no display screen on examination instrument, the phenomenon for often occurring correspondence measuring point misconnection, when data acquisition completes to enter post analysis
Data exception is just found, causes the data invalid for occurring collection for a long time, greatly reduces data acquisition efficiency.（2）In electric energy
In quality testing process, the phenomenon that the electric current jointing clamp and voltage link head of electric energy quality test instrument loosen is also occurred that sometimes,
Also result in data acquisition distortion.（3）Because data acquisition time is longer, collecting location environment is complicated, and in master control room other
Frequent operation, it some times happens that because of caused by artificial origin data acquisition interrupt situation, due to electric energy quality test instrument without
Method is shown and early warning, causes prolonged data acquisition not utilize.（4）, be to electricity according to test request before data acquisition
Test parameter in energy quality tester is previously set, and prior art is to pass through data wire and the quality of power supply with a PC
Tester links together, to complete previous parameter setting, and due to test site narrow space, environment is complicated, there is scene
The inconvenient defect of parameter setting；In addition, in test process, being not carried out the real time data and wind power plant of electric energy quality test
The progress of the existing monitoring data of master control screen crosses comparison, wastes existing resource.
The content of the invention
The invention provides a kind of wind power plant power quality data acquisition system and real-time comparison method, electric energy matter is solved
The data acquisition distortion of long duration that easily occurs during examination is measured without the technical problem that is found.
The present invention is to solve above technical problem by the following technical programs：
A kind of wind power plant power quality data acquisition system, including power network bus and central control room upper computer, divide on power network bus
Current transformer and voltage transformer are not provided with, and current transformer passes through testing current line and the electric current of electric energy quality test instrument
Input links together, and voltage transformer is connected to one by the voltage input end of voltage tester line and electric energy quality test instrument
Rise, electric energy quality test instrument links together with DC power supply, double-direction radio is connected with electric energy quality test instrument and is led to
Unit is interrogated, another bidirectional wireless communication unit is connected with central control room upper computer.
Voltage class arranges value, the voltage current transformer no-load voltage ratio of electric energy quality test are provided with central control room upper computer
Arranges value and test parameter arranges value.
A kind of wind power plant power quality data gathers real-time comparison method, it is characterised in that comprise the following steps：
The first step, by bidirectional wireless communication unit and another bidirectional wireless communication unit, the quality of power supply of on-the-spot test is surveyed
Examination instrument is electrically connected with central control room upper computer；
Second step, selection voltage class arranges value, voltage current transformer no-load voltage ratio arranges value and test in central control room upper computer
Parameter setting values, it is by bidirectional wireless communication unit and another bidirectional wireless communication unit that voltage class arranges value, voltage is electric
Current transformer no-load voltage ratio arranges value and test parameter arranges value are transferred in electric energy quality test instrument, carry out parameter setting；
3rd step, the electric current gathered in real time by electric energy quality test instrument on power network bus, the test data of voltage and performance number；
The test data is simultaneously transferred to middle control by the 4th step by bidirectional wireless communication unit and another bidirectional wireless communication unit
Shown in real time on the host computer of room；
Real-time current, voltage and the performance number of pretest bus in 5th step, selected wind power plant master control screen, and by the selected reality
When electric current, voltage and the performance number real-time current, voltage and the performance number that are collected with the 3rd step electric energy quality test instrument enter respectively
Row is compared；If comparison is identical, voltage class arranges value, voltage current transformer no-load voltage ratio arranges value and test parameter arranges value are just
Really, the wiring of electric energy quality test instrument is correct, and in the absence of virtual connection, disconnecting phenomenon, carries out the 7th step, if comparison value is different, carries out
6th step；
Voltage class arranges value, voltage current transformer no-load voltage ratio arranges value and test ginseng in 6th step, inspection central control room upper computer
Whether number arranges value is correct, if incorrect, repeats second step to the 5th step, if correctly, checking electric energy quality test
The wiring of instrument whether mistake, or there is the phenomenon of virtual connection, disconnecting, re-start electric energy quality test instrument wiring, after correction, weight
The 3rd step to the 5th step is carried out again；
7th step, proceeds by power quality data collection.
The present invention realizes the real time data of electric energy quality test instrument and host computer by configuring bidirectional wireless communication unit
Transmission, when solving on-the-spot test the distance of wire transmission mode and it is mobile restricted the problem of；By using real-time comparison method,
The real-time contrastive test data of wireless connection and the uniformity of real data can be passed through before the test, it is ensured that electric energy quality test instrument connects
Line and parameter setting it is accurate, improve testing efficiency, it is ensured that test data it is authentic and valid, meanwhile, improve electric energy
The data acquisition quality of quality test, it is to avoid the failure of long-time gathered data, improves the electricity quality evaluation of wind power plant
Efficiency.
Brief description of the drawings
Fig. 1 is the wind power plant power quality data acquisition system structural representation of the present invention；
Fig. 2 is the wind power plant power quality data real-time comparison method flow chart of the present invention.
Embodiment
Below according to accompanying drawing, the present invention is described in detail：
A kind of wind power plant power quality data acquisition system, including power network bus 1 and central control room upper computer 9, on power network bus 1
Current transformer 2 and voltage transformer 3 are respectively arranged with, current transformer 2 passes through testing current line 4 and electric energy quality test instrument
5 current input terminal links together, the control source that voltage transformer 3 passes through voltage tester line 6 and electric energy quality test instrument 5
End links together, and electric energy quality test instrument 5 links together with DC power supply 7, is connected on electric energy quality test instrument 5
There is bidirectional wireless communication unit 8, another bidirectional wireless communication unit 10 is connected with central control room upper computer 9.
The voltage class arranges value of electric energy quality test, voltage current transformer is provided with central control room upper computer 9 to become
Than arranges value and test parameter arranges value.Voltage class arranges value, voltage current transformer no-load voltage ratio in electric energy quality test instrument
Arranges value and test parameter arranges value are to receive another bidirectional wireless communication unit 10 by bidirectional wireless communication unit 8 to be transmitted
Central control room upper computer 9 in voltage class arranges value, voltage current transformer no-load voltage ratio arranges value and test parameter arranges value obtain
.
A kind of wind power plant power quality data gathers real-time comparison method, comprises the following steps：
The first step, by bidirectional wireless communication unit 8 and another bidirectional wireless communication unit 10, by the quality of power supply of on-the-spot test
Tester 5 is electrically connected with central control room upper computer 9；
Second step, selection voltage class arranges value, voltage current transformer no-load voltage ratio arranges value and test in central control room upper computer 9
Parameter setting values, by bidirectional wireless communication unit 8 and another bidirectional wireless communication unit 10 by voltage class arranges value, voltage
Current transformer ratio arranges value and test parameter arranges value are transferred in electric energy quality test instrument 5, carry out parameter setting；
3rd step, the test number by the real-time electric current gathered on power network bus 1 of electric energy quality test instrument 5, voltage and performance number
According to；
The test data is simultaneously transferred to by the 4th step by bidirectional wireless communication unit 8 and another bidirectional wireless communication unit 10
Shown in real time in central control room upper computer 9；
Real-time current, voltage and the performance number of pretest bus in 5th step, selected wind power plant master control screen, and by the selected reality
When electric current, voltage and the performance number real-time current, voltage and the performance number that are collected with the 3rd step electric energy quality test instrument enter respectively
Row is compared；If comparison is identical, voltage class arranges value, voltage current transformer no-load voltage ratio arranges value and test parameter arranges value are just
Really, the wiring of electric energy quality test instrument 5 is correct, and in the absence of virtual connection, disconnecting phenomenon, carries out the 7th step, if comparison value is different, carries out
6th step；
Voltage class arranges value, voltage current transformer no-load voltage ratio arranges value and test ginseng in 6th step, inspection central control room upper computer 9
Whether number arranges value is correct, if incorrect, repeats second step to the 5th step, if correctly, checking electric energy quality test
The wiring of instrument 5 whether mistake, or there is the phenomenon of virtual connection, disconnecting, re-start the wiring of electric energy quality test instrument 5, after correction,
Repeat the 3rd step to the 5th step；
7th step, proceeds by power quality data collection.
Claims (3)
1. a kind of wind power plant power quality data acquisition system, including power network bus（1）And central control room upper computer（9）, in power network
Bus（1）On be respectively arranged with current transformer（2）And voltage transformer（3）, current transformer（2）Pass through testing current line
（4）With electric energy quality test instrument（5）Current input terminal link together, voltage transformer（3）Pass through voltage tester line（6）With
Electric energy quality test instrument（5）Voltage input end link together, electric energy quality test instrument（5）With DC power supply（7）Even
It is connected together, it is characterised in that in electric energy quality test instrument（5）On be connected with bidirectional wireless communication unit（8）, on Central Control Room
Position machine（9）On be connected with another bidirectional wireless communication unit（10）.
2. a kind of wind power plant power quality data acquisition system according to claim 1, it is characterised in that on Central Control Room
Position machine（9）In be provided with the voltage class arranges value of electric energy quality test, voltage current transformer no-load voltage ratio arranges value and test ginseng
Number arranges value.
3. a kind of wind power plant power quality data gathers real-time comparison method, it is characterised in that comprise the following steps：
The first step, pass through bidirectional wireless communication unit（8）With another bidirectional wireless communication unit（10）, by the electric energy of on-the-spot test
Quality tester（5）With central control room upper computer（9）It is electrically connected；
Second step, in central control room upper computer（9）Upper selection voltage class arranges value, voltage current transformer no-load voltage ratio arranges value and survey
Parameter setting values are tried, pass through bidirectional wireless communication unit（8）With another bidirectional wireless communication unit（10）Voltage class is set
Value, voltage current transformer no-load voltage ratio arranges value and test parameter arranges value are transferred to electric energy quality test instrument（5）In, carry out parameter
Set；
3rd step, pass through electric energy quality test instrument（5）Power network bus is gathered in real time（1）On electric current, the survey of voltage and performance number
Try data；
The test data is simultaneously passed through bidirectional wireless communication unit by the 4th step（8）With another bidirectional wireless communication unit（10）Pass
It is defeated to arrive central control room upper computer（9）It is upper to be shown in real time；
Real-time current, voltage and the performance number of pretest bus in 5th step, selected wind power plant master control screen, and by the selected reality
When electric current, voltage and the performance number real-time current, voltage and the performance number that are collected with the 3rd step electric energy quality test instrument enter respectively
Row is compared；If comparison is identical, voltage class arranges value, voltage current transformer no-load voltage ratio arranges value and test parameter arranges value are just
Really, electric energy quality test instrument（5）Wiring is correct, and in the absence of virtual connection, disconnecting phenomenon, carries out the 7th step, if comparison value is different, enter
The step of row the 6th；
6th step, inspection central control room upper computer（9）Upper voltage class arranges value, voltage current transformer no-load voltage ratio arranges value and test
Whether parameter setting values are correct, if incorrect, repeat second step to the 5th step, if correctly, checking that the quality of power supply is surveyed
Try instrument（5）Wiring whether mistake, or there is the phenomenon of virtual connection, disconnecting, re-start electric energy quality test instrument（5）Wiring,
After correction, repeat the 3rd step to the 5th step；
7th step, proceeds by power quality data collection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710420455.2A CN107085157A (en) | 2017-06-07 | 2017-06-07 | Wind power plant power quality data acquisition system and real-time comparison method |
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| CN201710420455.2A CN107085157A (en) | 2017-06-07 | 2017-06-07 | Wind power plant power quality data acquisition system and real-time comparison method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108387801A (en) * | 2018-03-28 | 2018-08-10 | 华电电力科学研究院有限公司 | A kind of wind power station electric energy quality test device and test method |
| CN112394248A (en) * | 2020-11-20 | 2021-02-23 | 南方电网数字电网研究院有限公司 | Power quality measurement device, system and method |
| CN112555103A (en) * | 2020-12-04 | 2021-03-26 | 南方电网电力科技股份有限公司 | Wind power plant electric energy quality field test system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108387801A (en) * | 2018-03-28 | 2018-08-10 | 华电电力科学研究院有限公司 | A kind of wind power station electric energy quality test device and test method |
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| CN112394248A (en) * | 2020-11-20 | 2021-02-23 | 南方电网数字电网研究院有限公司 | Power quality measurement device, system and method |
| CN112555103A (en) * | 2020-12-04 | 2021-03-26 | 南方电网电力科技股份有限公司 | Wind power plant electric energy quality field test system and method |
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