CN205786889U - Dynamic passive compensation response wave shape acquisition system - Google Patents
Dynamic passive compensation response wave shape acquisition system Download PDFInfo
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- CN205786889U CN205786889U CN201620457626.XU CN201620457626U CN205786889U CN 205786889 U CN205786889 U CN 205786889U CN 201620457626 U CN201620457626 U CN 201620457626U CN 205786889 U CN205786889 U CN 205786889U
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Abstract
The utility model discloses a kind of dynamic passive compensation response wave shape acquisition system, the problem solving the first-hand sample information distortion of the test of the response time to dynamic reactive compensation device that prior art exists.High including main transformer, low-voltage bus bar, collection electric line, dynamic reactive compensation device current transformer (7), main transformer high voltage bus is provided with main transformer high side voltage transformer (1), main transformer low-voltage bus bar is respectively arranged with main transformer low-pressure side voltage transformer (2) and dynamic reactive compensation device current transformer (7), it is high with main transformer that collection electric line passes sequentially through chopper and current collection line current transformer, low-voltage bus bar electrically connects, the secondary side of dynamic reactive compensation device current transformer (7) connects and has dynamic reactive compensation device (6), this utility model is by measuring three-phase output voltage and the electric current of dynamic reactive compensation device, thus record the output of its instantaneous reactive.It is particularly suitable at electrical network onsite application.
Description
Technical field
The present invention relates to a kind of dynamic passive compensation response wave shape acquisition system, particularly to a kind of dynamic reactive compensation device accessed in electrical network to the detection device of the response wave shape of disturbing source and detection method.
Background technology
The application of power electronic equipments large quantities of after accessing electrical network on a large scale along with wind energy turbine set, runs electrical network and occurs in that some new problems.Particularly the extensive off-grid of wind-driven generator, can cause serious impact to electrical network.In order to ensure the safe and stable operation of network system, the response time of wind energy turbine set dynamic reactive compensation device is proposed new rigors.According to pertinent regulations, the response time of wind energy turbine set dynamic reactive compensation device should be within 30 milliseconds, in order to meet requirement, need the response time of the dynamic reactive compensation device running electrical network is tested, field erected wind energy turbine set dynamic reactive compensation device is evaluated.Existing method of testing, is only that a certain phase in three-phase electricity carries out disturbance test, estimates the overall idle output shape of dynamic reactive compensation device according to the curent change of individual event.When the output of dynamic reactive compensation device three-phase is uneven, the test result of response wave shape and response time is to exist with the actual idle waveform of three-phase and three-phase idle output response time to teach big error, causes the first-hand sample information distortion that the response time to dynamic reactive compensation device is tested.
Summary of the invention
The invention provides a kind of dynamic passive compensation response wave shape acquisition system, the problem solving the first-hand sample information distortion of the test of the response time to dynamic reactive compensation device that prior art exists.
The present invention is to solve above technical problem by the following technical programs:
nullA kind of dynamic passive compensation response wave shape acquisition system，Including main transformer high voltage bus、Main transformer low-voltage bus bar、The first collection electric line that load is maximum、The second properly functioning collection electric line、Dynamic reactive compensation device current transformer and oscillograph，Main transformer high voltage bus is provided with main transformer high side voltage transformer，Main transformer low-voltage bus bar is respectively arranged with main transformer low-pressure side voltage transformer and dynamic reactive compensation device current transformer，First collection electric line passes sequentially through the first chopper and the first current collection line current transformer is electrically connected with main transformer low-voltage bus bar，Second collection electric line passes sequentially through the second chopper and the second current collection line current transformer is electrically connected with main transformer low-voltage bus bar，The secondary side of dynamic reactive compensation device current transformer connects and has dynamic reactive compensation device，The A phase voltage outfan of main transformer low-pressure side voltage transformer links together with the first voltage signal acquisition end of oscillograph，The B phase voltage outfan of main transformer low-pressure side voltage transformer links together with the second voltage signal acquisition end of oscillograph，The C phase voltage outfan of main transformer low-pressure side voltage transformer links together with the tertiary voltage signals collecting end of oscillograph，The A phase voltage outfan of main transformer high side voltage transformer links together with the 4th voltage signal acquisition end of oscillograph；The A phase current outfan of dynamic reactive compensation device current transformer links together with the first current signal collection terminal of oscillograph, the B phase current outfan of dynamic reactive compensation device current transformer links together with the second current signal collection terminal of oscillograph, the C phase current outfan of dynamic reactive compensation device current transformer links together with the 3rd current signal collection terminal of oscillograph, and the A phase current outfan of the first current collection line current transformer links together with the 4th current signal collection terminal of oscillograph.
Oscillograph connects and has response wave shape to analyze system.
A kind of dynamic passive compensation response wave shape acquisition method, comprises the following steps:
The first step, the collection electric line selecting load maximum collect electric line as the first collection electric line, other properly functioning collection electric line of reselection as second；
Second step, by first collection electric line on whole blower fans and load out of service, with the first chopper by first collection electric line cut off, from cut off time start timing 30 minutes, make in the first collection electric line each air box change electric discharge complete；
3rd step, the first voltage signal acquisition end of the A phase voltage outfan of main transformer low-pressure side voltage transformer with oscillograph is linked together, the B phase voltage outfan of main transformer low-pressure side voltage transformer links together with the second voltage signal acquisition end of oscillograph, the C phase voltage outfan of main transformer low-pressure side voltage transformer links together with the tertiary voltage signals collecting end of oscillograph, and the A phase voltage outfan of main transformer high side voltage transformer links together with the 4th voltage signal acquisition end of oscillograph；The A phase current outfan of dynamic reactive compensation device current transformer and the first current signal collection terminal I of oscillograph1Link together, the B phase current outfan of dynamic reactive compensation device current transformer links together with the second current signal collection terminal of oscillograph, the C phase current outfan of dynamic reactive compensation device current transformer links together with the 3rd current signal collection terminal of oscillograph, and the A phase current outfan of the first current collection line current transformer links together with the 4th current signal collection terminal of oscillograph；
4th step, according to first collection electric line on electric current, with oscillograph the 4th current signal collection terminal current waveform input for reference to arrange oscillograph for Sudden Changing Rate trigger record ripple, and arrange record the ripple time be 100 milliseconds, trigger before record the ripple time be 10 milliseconds；
5th step, by first collection electric line on the first chopper close, wait 2-3 minute, complete wave-recording sampling process；
6th step, by oscillograph record data import response wave shape analyze system, utilize record dynamic reactive compensation device three-phase output voltage and current data, based on instantaneous reactive computational theory, draw out the idle curve of instantaneous output of dynamic reactive compensation device；
7th step, by the idle curve plotting of instantaneous output of main transformer high-pressure side A phase voltage curve and dynamic reactive compensation device in same coordinate axes, dynamic reactive generating means action threshold value is reached as response starting point using disturbance voltage, using the output of dynamic reactive generating means to the 90% of desired value maximum as terminal, calculate the response time of dynamic reactive compensation device with this.
The present invention utilizes the change charging of circuit Large Copacity case to cause high side bus voltage to fluctuate, simulate real System Reactive Power disturbance, the instantaneous reactive curve of output being achieved dynamic reactive compensation device by separate unit oscillograph is the most Tong Bu with controlled voltage curve, finally give dynamic reactive compensation device overall process response wave shape, test accurately and reliably, is particularly suitable at electrical network onsite application.
Accompanying drawing explanation
Fig. 1 is the structural representation of the testing circuit of the present invention.
Detailed description of the invention
The present invention is described in detail below in conjunction with the accompanying drawings:
nullA kind of dynamic passive compensation response wave shape acquisition system，Including main transformer high voltage bus、Main transformer low-voltage bus bar、The first collection electric line 3 that load is maximum、The second properly functioning collection electric line 5、Dynamic reactive compensation device current transformer 7 and oscillograph 8，Main transformer high voltage bus is provided with main transformer high side voltage transformer 1，Main transformer low-voltage bus bar is respectively arranged with main transformer low-pressure side voltage transformer 2 and dynamic reactive compensation device current transformer 7，First collection electric line 3 passes sequentially through the first chopper 4 and the first current collection line current transformer 10 is electrically connected with main transformer low-voltage bus bar，Second collection electric line 5 passes sequentially through the second chopper and the second current collection line current transformer is electrically connected with main transformer low-voltage bus bar，The secondary side of dynamic reactive compensation device current transformer 7 connects and has dynamic reactive compensation device 6，The A phase voltage outfan of main transformer low-pressure side voltage transformer 2 and the first voltage signal acquisition end V of oscillograph 81Link together, the B phase voltage outfan of main transformer low-pressure side voltage transformer 2 and the second voltage signal acquisition end V of oscillograph 82Link together, the C phase voltage outfan of main transformer low-pressure side voltage transformer 2 and the tertiary voltage signals collecting end V of oscillograph 83Link together, the A phase voltage outfan of main transformer high side voltage transformer 1 and the 4th voltage signal acquisition end V of oscillograph 84Link together；The A phase current outfan of dynamic reactive compensation device current transformer 7 and the first current signal collection terminal I of oscillograph 81Link together, the B phase current outfan of dynamic reactive compensation device current transformer 7 and the second current signal collection terminal I of oscillograph 82Link together, the C phase current outfan of dynamic reactive compensation device current transformer 7 and the 3rd current signal collection terminal I of oscillograph 83Link together, the A phase current outfan of the first current collection line current transformer 10 and the 4th current signal collection terminal I of oscillograph 84Link together.
Oscillograph 8 connects and has response wave shape to analyze system 9.The present invention is by measuring three-phase output voltage and the electric current of dynamic reactive compensation device, thus records the output of its instantaneous reactive, and the single-phase measurement solving prior art existence causes dynamic reactive compensation device response time to test the problem of dtmf distortion DTMF of first-hand sample information.
A kind of dynamic passive compensation response wave shape acquisition method, comprises the following steps:
The first step, the collection electric line selecting load maximum collect electric line 5 as the first collection electric line 3, other properly functioning collection electric line of reselection as second；
Second step, by first collection electric line 3 on whole blower fans and load out of service, with the first chopper 4 by first collection electric line 3 cut off, from cut off time start timing 30 minutes, make in the first collection electric line 3 each air box change electric discharge complete；
3rd step, by the first voltage signal acquisition end V of the A phase voltage outfan of main transformer low-pressure side voltage transformer 2 Yu oscillograph 81Link together, the B phase voltage outfan of main transformer low-pressure side voltage transformer 2 and the second voltage signal acquisition end V of oscillograph 82Link together, the C phase voltage outfan of main transformer low-pressure side voltage transformer 2 and the tertiary voltage signals collecting end V of oscillograph 83Link together, the A phase voltage outfan of main transformer high side voltage transformer 1 and the 4th voltage signal acquisition end V of oscillograph 84Link together；The A phase current outfan of dynamic reactive compensation device current transformer 7 and the first current signal collection terminal I of oscillograph 81Link together, the B phase current outfan of dynamic reactive compensation device current transformer 7 and the second current signal collection terminal I of oscillograph 82Link together, the C phase current outfan of dynamic reactive compensation device current transformer 7 and the 3rd current signal collection terminal I of oscillograph 83Link together, the A phase current outfan of the first current collection line current transformer 10 and the 4th current signal collection terminal I of oscillograph 84Link together；
4th step, according to first collection electric line 3 on electric current, with the 4th current signal collection terminal I of oscillograph 84Current waveform input for reference to arrange oscillograph be Sudden Changing Rate trigger record ripple, and arrange record the ripple time be 100 milliseconds, trigger before record the ripple time be 10 milliseconds；
5th step, by first collection electric line 3 on the first chopper 4 close, wait 2-3 minute, complete wave-recording sampling process；
6th step, oscillograph 8 is recorded data import response wave shape analyze system 9, utilize record dynamic reactive compensation device three-phase output voltage and current data, based on instantaneous reactive computational theory, the instantaneous output calculating dynamic reactive compensation device is idle；
7th step, by the idle curve plotting of instantaneous output of main transformer high-pressure side A phase voltage curve and dynamic reactive compensation device in same coordinate axes.
Claims (2)
- null1. a dynamic passive compensation response wave shape acquisition system，Including main transformer high voltage bus、Main transformer low-voltage bus bar、The first collection electric line (3) that load is maximum、The second properly functioning collection electric line (5)、Dynamic reactive compensation device current transformer (7) and oscillograph (8)，Main transformer high voltage bus is provided with main transformer high side voltage transformer (1)，Main transformer low-voltage bus bar is respectively arranged with main transformer low-pressure side voltage transformer (2) and dynamic reactive compensation device current transformer (7)，It is characterized in that，First collection electric line (3) passes sequentially through the first chopper (4) and the first current collection line current transformer (10) is electrically connected with main transformer low-voltage bus bar，Second collection electric line (5) passes sequentially through the second chopper and the second current collection line current transformer is electrically connected with main transformer low-voltage bus bar，The secondary side of dynamic reactive compensation device current transformer (7) connects and has dynamic reactive compensation device (6)，The A phase voltage outfan of main transformer low-pressure side voltage transformer (2) and the first voltage signal acquisition end (V of oscillograph (8)1) link together, the B phase voltage outfan of main transformer low-pressure side voltage transformer (2) and the second voltage signal acquisition end (V of oscillograph (8)2) link together, the C phase voltage outfan of main transformer low-pressure side voltage transformer (2) and the tertiary voltage signals collecting end (V of oscillograph (8)3) link together, the A phase voltage outfan of main transformer high side voltage transformer (1) and the 4th voltage signal acquisition end (V of oscillograph (8)4) link together；The A phase current outfan of dynamic reactive compensation device current transformer (7) and the first current signal collection terminal (I of oscillograph (8)1) link together, the B phase current outfan of dynamic reactive compensation device current transformer (7) and the second current signal collection terminal (I of oscillograph (8)2) link together, the C phase current outfan of dynamic reactive compensation device current transformer (7) and the 3rd current signal collection terminal (I of oscillograph (8)3) link together, the A phase current outfan of the first current collection line current transformer (10) and the 4th current signal collection terminal (I of oscillograph (8)4) link together.
- A kind of dynamic passive compensation response wave shape acquisition system the most according to claim 1, it is characterised in that have response wave shape to analyze system (9) in the upper connection of oscillograph (8).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620457626.XU CN205786889U (en) | 2016-05-18 | 2016-05-18 | Dynamic passive compensation response wave shape acquisition system |
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| CN201620457626.XU CN205786889U (en) | 2016-05-18 | 2016-05-18 | Dynamic passive compensation response wave shape acquisition system |
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| CN205786889U true CN205786889U (en) | 2016-12-07 |
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| CN201620457626.XU Withdrawn - After Issue CN205786889U (en) | 2016-05-18 | 2016-05-18 | Dynamic passive compensation response wave shape acquisition system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105866592A (en) * | 2016-05-18 | 2016-08-17 | 国网山西省电力公司电力科学研究院 | System and method for acquiring dynamic reactive power compensation response waveforms |
| CN108879713A (en) * | 2018-06-28 | 2018-11-23 | 中石化南京工程有限公司 | A kind of setting method of reactive power compensation device sampled current transformer position |
-
2016
- 2016-05-18 CN CN201620457626.XU patent/CN205786889U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105866592A (en) * | 2016-05-18 | 2016-08-17 | 国网山西省电力公司电力科学研究院 | System and method for acquiring dynamic reactive power compensation response waveforms |
| CN105866592B (en) * | 2016-05-18 | 2018-01-02 | 国网山西省电力公司电力科学研究院 | Dynamic passive compensation response wave shape acquisition system and acquisition method |
| CN108879713A (en) * | 2018-06-28 | 2018-11-23 | 中石化南京工程有限公司 | A kind of setting method of reactive power compensation device sampled current transformer position |
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Granted publication date: 20161207 Effective date of abandoning: 20180102 |
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| AV01 | Patent right actively abandoned |