CN203037757U - Detection apparatus for response waveform of dynamic var generation device - Google Patents
Detection apparatus for response waveform of dynamic var generation device Download PDFInfo
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- CN203037757U CN203037757U CN 201220643999 CN201220643999U CN203037757U CN 203037757 U CN203037757 U CN 203037757U CN 201220643999 CN201220643999 CN 201220643999 CN 201220643999 U CN201220643999 U CN 201220643999U CN 203037757 U CN203037757 U CN 203037757U
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- transformer
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- current
- reactive generating
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- 238000001514 detection method Methods 0.000 title abstract description 6
- 238000012360 testing method Methods 0.000 abstract description 9
- 238000005070 sampling Methods 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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Abstract
The utility model discloses a detection apparatus for a response waveform of a dynamic var generation device, thereby solving a problem of distortion of first-hand sampling information of response time testing of a dynamic var generation device in the prior art. The detection apparatus is characterized in that a first current collecting circuit (2), a transformer (9), and a voltage transformer (11) are respectively and electrically connected to a bus (1); a circuit breaker (3) is arranged between the bus (1) and the first current collecting circuit (2); a secondary side A phase of a first current collecting circuit current transformer (4), a secondary side A phase of a connection transformer high-voltage side current transformer (8), a secondary side A phase of a connection transformer low-voltage side current transformer (6), and a secondary side A phase of a transformer low-voltage side current transformer (10) are electrically connected with input terminals of an oscillograph (12); and a secondary side A phase of a voltage transformer (11) is electrically connected with voltage waveform input terminals of the oscillograph (12). According to the utility model, the testing can be carried out accurately; and the provided detection apparatus is suitable for application to the power grid site.
Description
Technical field
The present invention relates to a kind of dynamic reactive generating means that in electrical network, inserts to the pick-up unit of the response wave shape of disturbing source.
Background technology
After wind energy turbine set inserted electrical network on a large scale, the application of large quantities of power electronic equipments had caused the extensive off-grid of new problem, particularly wind-powered electricity generation to electrical network, can cause electrical network to have a strong impact on, for the safe and stable operation of safeguards system.Response time to wind energy turbine set dynamic reactive generating means has proposed new requirement.According to relevant requirements, the wind energy turbine set dynamic reactive generating means response time should be in 30 milliseconds, this tests the response time of dynamic reactive generating means at the scene effectively truly with regard to needing, and field erected wind energy turbine set dynamic reactive generating means is estimated.Existing method of testing is to rely on dynamic reactive generating means self to send out pulse to simulate the manufacturing disturbance, can not simulate the truth of disturbing source like this, existing proving installation can not detect the coordination and response waveform of dynamic reactive generating means various piece all sidedly in addition, causes the first-hand sample information distortion to the test of response time of silent oscillation dynamic reactive generating means.
Summary of the invention
The invention provides a kind of dynamic reactive generating means response wave shape pick-up unit, the problem to the first-hand sample information distortion of the test of response time of dynamic reactive generating means that has solved that prior art exists.
The present invention overcomes the above problems by following scheme:
A kind of dynamic reactive generating means response wave shape pick-up unit, comprise bus, dynamic reactive generating means and oscillograph, on bus, be electrically connected with the first current collection circuit respectively, transformer and voltage transformer (VT), the high-pressure side that the dynamic reactive generating means connects transformer is electrically connected with bus, the low-pressure side that the dynamic reactive generating means connects transformer is electrically connected with the dynamic reactive generating means, the high-pressure side of dynamic reactive generating means connection transformer is provided with the dynamic reactive generating means with the circuit between the bus and is connected transformer high-voltage side current transformer, the low-pressure side of dynamic reactive generating means connection transformer is provided with the dynamic reactive generating means with the circuit between the dynamic reactive generating means and is connected the step down side current transformer, between bus and the first current collection circuit, be provided with isolating switch, the first current collection circuit is provided with the first current collection line current mutual inductor, the secondary side A of the first current collection line current mutual inductor is electrically connected with the first current waveform input terminal of oscillograph, the secondary side A that the dynamic reactive generating means connects transformer high-voltage side current transformer is electrically connected with the second current waveform input terminal of oscillograph, the secondary side A that the dynamic reactive generating means connects the step down side current transformer is electrically connected with the 3rd current waveform input terminal of oscillograph, transformer is provided with the step down side current transformer, the secondary side A of step down side current transformer is electrically connected with the 4th current waveform input terminal of oscillograph, and the secondary side A of voltage transformer (VT) is electrically connected with the voltage waveform input terminal of oscillograph.
Four voltage waveform input terminals of oscillograph are connected in parallel.
A kind of dynamic reactive generating means response wave shape detection method may further comprise the steps:
The first step, the maximum current collection circuit of selecting to load are the first current collection circuit;
Second step, between bus and the first current collection circuit, isolating switch is set, at the first current collection circuit the first current collection line current mutual inductor is set, the secondary side A of the first current collection line current mutual inductor is electrically connected with the first current waveform input terminal of oscillograph, the high-pressure side that the dynamic reactive generating means is connected transformer is electrically connected with bus, the low-pressure side that the dynamic reactive generating means is connected transformer is electrically connected with the dynamic reactive generating means, connecting the high-pressure side of transformer at the dynamic reactive generating means arranges the dynamic reactive generating means with circuit between the bus and is connected transformer high-voltage side current transformer, connecting the low-pressure side of transformer at the dynamic reactive generating means arranges the dynamic reactive generating means with circuit between the dynamic reactive generating means and is connected the step down side current transformer, the secondary side A that the dynamic reactive generating means is connected transformer high-voltage side current transformer is electrically connected with the second current waveform input terminal of oscillograph, the secondary side A that the dynamic reactive generating means is connected the step down side current transformer is electrically connected with the 3rd current waveform input terminal of oscillograph, at bus voltage transformer (VT) is set, the secondary side A of voltage transformer (VT) is electrically connected with the voltage waveform input terminal of oscillograph;
The 3rd step, the sudden change amount of electric current arranges oscillograph when disconnecting according to the isolating switch on the first current collection circuit, and arranges that to record the ripple time be 100 milliseconds;
The 4th goes on foot, with isolating switch the first current collection circuit is cut off, and picks up counting during from cut-out, crosses 2-3 minute startup oscillograph, finishes the sampling of response current waveform and response voltage waveform.
The present invention has the meritorious disturbance of utilization and causes the fluctuation that voltage and current is idle, the idle disturbance of system that is virtually reality like reality directly can record the dynamic reactive generating means, the interlock response wave shape of perception part and capacitive part, test is particularly suitable for accurately and reliably in the on-the-spot use of electrical network.
Description of drawings
Fig. 1 is the structural representation of testing circuit of the present invention.
Embodiment
A kind of dynamic reactive generating means response wave shape pick-up unit, comprise bus 1, dynamic reactive generating means 5 and oscillograph 12, on bus 1, be electrically connected with the first current collection circuit 2 respectively, transformer 9 and voltage transformer (VT) 11, the high-pressure side that the dynamic reactive generating means connects transformer 7 is electrically connected with bus 1, the low-pressure side that the dynamic reactive generating means connects transformer 7 is electrically connected with dynamic reactive generating means 5, the high-pressure side of dynamic reactive generating means connection transformer 7 is provided with the dynamic reactive generating means with the circuit between the bus 1 and is connected transformer high-voltage side current transformer 8, the low-pressure side of dynamic reactive generating means connection transformer 7 is provided with the dynamic reactive generating means with the circuit between the dynamic reactive generating means 5 and is connected step down side current transformer 6, between bus 1 and the first current collection circuit 2, be provided with isolating switch 3, the first current collection circuit 2 is provided with the first current collection line current mutual inductor 4, the secondary side A of the first current collection line current mutual inductor 4 is electrically connected with the first current waveform input terminal of oscillograph 12, the secondary side A that the dynamic reactive generating means connects transformer high-voltage side current transformer 8 is electrically connected with the second current waveform input terminal of oscillograph 12, the secondary side A that the dynamic reactive generating means connects step down side current transformer 6 is electrically connected with the 3rd current waveform input terminal of oscillograph 12, transformer 9 is provided with step down side current transformer 10, the secondary side A of step down side current transformer 10 is electrically connected with the 4th current waveform input terminal of oscillograph 12, and the secondary side A of voltage transformer (VT) 11 is electrically connected with the voltage waveform input terminal of oscillograph 12.
Four voltage waveform input terminals of oscillograph 12 are connected in parallel.
A kind of dynamic reactive generating means response wave shape detection method may further comprise the steps:
The first step, the maximum current collection circuit of selecting to load are the first current collection circuit 2;
Second step, between bus 1 and the first current collection circuit 2, isolating switch 3 is set, at the first current collection circuit 2 the first current collection line current mutual inductor 4 is set, the secondary side A of the first current collection line current mutual inductor 4 is electrically connected with the first current waveform input terminal of oscillograph 12, the high-pressure side that the dynamic reactive generating means is connected transformer 7 is electrically connected with bus 1, the low-pressure side that the dynamic reactive generating means is connected transformer 7 is electrically connected with dynamic reactive generating means 5, connecting the high-pressure side of transformer 7 at the dynamic reactive generating means arranges the dynamic reactive generating means with circuit between the bus 1 and is connected transformer high-voltage side current transformer 8, connecting the low-pressure side of transformer 7 at the dynamic reactive generating means arranges the dynamic reactive generating means with circuit between the dynamic reactive generating means 5 and is connected step down side current transformer 6, the secondary side A that the dynamic reactive generating means is connected transformer high-voltage side current transformer 8 is electrically connected with the second current waveform input terminal of oscillograph 12, the secondary side A that the dynamic reactive generating means is connected step down side current transformer 6 is electrically connected with the 3rd current waveform input terminal of oscillograph 12, at bus 1 voltage transformer (VT) 11 is set, the secondary side A of voltage transformer (VT) 11 is electrically connected with the voltage waveform input terminal of oscillograph 12;
The 3rd step, the sudden change amount of electric current arranges oscillograph 12 when disconnecting according to the isolating switch 3 on the first current collection circuit 2, and the record ripple time is set is 100 milliseconds;
The 4th goes on foot, with isolating switch 3 the first current collection circuit 2 is cut off, and picks up counting during from cut-out, crosses 2-3 minute startup oscillograph 12, finishes the sampling of response current waveform and response voltage waveform.
Select the voltage of access oscillograph 12 separate separate necessary consistent with electric current, be convenient to carry out the comparison of phase place and the calculating of power.
After checking that wiring is errorless, according to electric current, the low-pressure side electric current of transformer 9 and the voltage change ratio of access of the second current collection circuit 5 of the outlet that is disconnected the first current collection circuit 2, dynamic reactive generating means 7, normal operation oscillograph 12 is arranged.
This device and method is based on conventional electric energy quality test instrument or failure wave-recording instrument, and connection type is simple, and test result is intuitively accurate.
Claims (2)
1. dynamic reactive generating means response wave shape pick-up unit, comprise bus (1), dynamic reactive generating means (5) and oscillograph (12), on bus (1), be electrically connected with the first current collection circuit (2) respectively, transformer (9) and voltage transformer (VT) (11), it is characterized in that, the high-pressure side that the dynamic reactive generating means connects transformer (7) is electrically connected with bus (1), the low-pressure side that the dynamic reactive generating means connects transformer (7) is electrically connected with dynamic reactive generating means (5), the high-pressure side of dynamic reactive generating means connection transformer (7) is provided with the dynamic reactive generating means with the circuit between the bus (1) and is connected transformer high-voltage side current transformer (8), the low-pressure side of dynamic reactive generating means connection transformer (7) is provided with the dynamic reactive generating means with the circuit between the dynamic reactive generating means (5) and is connected step down side current transformer (6), between bus (1) and the first current collection circuit (2), be provided with isolating switch (3), the first current collection circuit (2) is provided with the first current collection line current mutual inductor (4), the secondary side A of the first current collection line current mutual inductor (4) is electrically connected with the first current waveform input terminal of oscillograph (12), the secondary side A that the dynamic reactive generating means connects transformer high-voltage side current transformer (8) is electrically connected with the second current waveform input terminal of oscillograph (12), the secondary side A that the dynamic reactive generating means connects step down side current transformer (6) is electrically connected with the 3rd current waveform input terminal of oscillograph (12), transformer (9) is provided with step down side current transformer (10), the secondary side A of step down side current transformer (10) is electrically connected with the 4th current waveform input terminal of oscillograph (12), and the secondary side A of voltage transformer (VT) (11) is electrically connected with the voltage waveform input terminal of oscillograph (12).
2. a kind of dynamic reactive generating means response wave shape pick-up unit according to claim 1 is characterized in that four voltage waveform input terminals of oscillograph (12) are connected in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220643999 CN203037757U (en) | 2012-11-29 | 2012-11-29 | Detection apparatus for response waveform of dynamic var generation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220643999 CN203037757U (en) | 2012-11-29 | 2012-11-29 | Detection apparatus for response waveform of dynamic var generation device |
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| CN203037757U true CN203037757U (en) | 2013-07-03 |
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| CN 201220643999 Expired - Lifetime CN203037757U (en) | 2012-11-29 | 2012-11-29 | Detection apparatus for response waveform of dynamic var generation device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102981078A (en) * | 2012-11-29 | 2013-03-20 | 山西省电力公司电力科学研究院 | Response waveform detecting device and method for dynamic reactive-power generating device |
| CN103676623A (en) * | 2013-11-07 | 2014-03-26 | 国家电网公司 | Time scale unified dynamic reactive power generating device response time detecting method |
-
2012
- 2012-11-29 CN CN 201220643999 patent/CN203037757U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102981078A (en) * | 2012-11-29 | 2013-03-20 | 山西省电力公司电力科学研究院 | Response waveform detecting device and method for dynamic reactive-power generating device |
| CN102981078B (en) * | 2012-11-29 | 2015-04-22 | 山西省电力公司电力科学研究院 | Response waveform detecting device and method for dynamic reactive-power generating device |
| CN103676623A (en) * | 2013-11-07 | 2014-03-26 | 国家电网公司 | Time scale unified dynamic reactive power generating device response time detecting method |
| CN103676623B (en) * | 2013-11-07 | 2016-03-30 | 国家电网公司 | Target dynamic reactive generating means response time assay method time unified |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130703 Effective date of abandoning: 20150422 |