CN203037758U - Response waveform detection apparatus for straightly suspended type dynamic reactive generation device - Google Patents
Response waveform detection apparatus for straightly suspended type dynamic reactive generation device Download PDFInfo
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- CN203037758U CN203037758U CN 201220644009 CN201220644009U CN203037758U CN 203037758 U CN203037758 U CN 203037758U CN 201220644009 CN201220644009 CN 201220644009 CN 201220644009 U CN201220644009 U CN 201220644009U CN 203037758 U CN203037758 U CN 203037758U
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Abstract
Disclosed in the utility model is a response waveform detection apparatus for a straightly suspended type dynamic reactive generation device. With utilization of the response waveform detection apparatus, a problem of distortion of first-hand sampling information of testing on response time of the straightly suspended type dynamic reactive generation device due to the utilization of the existing measuring device can be solved. The response waveform detection apparatus comprises a bus (1), a straightly suspended type dynamic reactive generation device (7), and an oscillograph (12). A circuit breaker (3) is arranged between the bus and a first current collection circuit (2); a secondary side A phase of a first current collection circuit current transformer (4), a secondary side A phase of a second current collection circuit current transformer (6), a secondary side A phase of a reactive compensation device connection circuit current transformer (8), and a secondary side A phase of a transformer low-voltage side current transformer (10) are electrically connected with current waveform input terminals of the 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 is accurate; and the response waveform detection apparatus is suitable for application to a power grid field.
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 direct hanging type dynamic reactive generating means response time should be in 30 milliseconds, this tests the response time of direct hanging type 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 direct hanging type 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 direct hanging type dynamic reactive generating means.
Summary of the invention
The invention provides a kind of direct hanging type 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 direct hanging type dynamic reactive generating means that has solved that prior art exists.
The present invention overcomes the above problems by following scheme:
A kind of direct hanging type dynamic reactive generating means response wave shape pick-up unit, comprise bus, direct hanging type dynamic reactive generating means and oscillograph, on bus, be electrically connected with the first current collection circuit respectively, the second current collection circuit, transformer, direct hanging type dynamic reactive generating means and voltage transformer (VT), 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 second current collection circuit is provided with the second current collection line current mutual inductor, the secondary side A of the second current collection line current mutual inductor is electrically connected with the second current waveform input terminal of oscillograph, line between bus and the direct hanging type dynamic reactive generating means is provided with reactive generating device connection line current transformer, the secondary side A of reactive generating device connection line 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 direct hanging type 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, and selecting current collection circuits of other normal operations again is the second current collection circuit;
Second step, between bus and the first current collection circuit, be provided with isolating switch, 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, at the second current collection circuit the second current collection line current mutual inductor is set, the secondary side A of the second current collection line current mutual inductor is electrically connected with the second current waveform input terminal of oscillograph, line between bus and direct hanging type dynamic reactive generating means arranges reactive generating device connection line current transformer, the secondary side A of reactive generating device connection line current transformer is electrically connected with the 3rd current waveform input terminal of oscillograph, at transformer the step down side current transformer is set, the secondary side A of step down side current transformer is electrically connected with the 4th 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 direct hanging type dynamic reactive generating means response wave shape pick-up unit, comprise bus 1, direct hanging type dynamic reactive generating means 7 and oscillograph 12, on bus 1, be electrically connected with the first current collection circuit 2 respectively, the second current collection circuit 5, transformer 9, direct hanging type dynamic reactive generating means 7 and voltage transformer (VT) 11, 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 second current collection circuit 5 is provided with the second current collection line current mutual inductor 6, the secondary side A of the second current collection line current mutual inductor 6 is electrically connected with the second current waveform input terminal of oscillograph 12, line between bus 1 and the direct hanging type dynamic reactive generating means 7 is provided with reactive generating device connection line current transformer 8, the secondary side A of reactive generating device connection line current transformer 8 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 direct hanging type dynamic reactive generating means response wave shape detection method may further comprise the steps:
The first step, the maximum current collection circuit of selection load are that the rated capacity of the first current collection circuit, 2, the first current collection circuits 2 requires more than 80%, and selecting other normal current collection circuits that move again is the second current collection circuit 5;
Second step, between bus 1 and the first current collection circuit 2, be provided with isolating switch 3, 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, at the second current collection circuit 5 the second current collection line current mutual inductor 6 is set, the secondary side A of the second current collection line current mutual inductor 6 is electrically connected with the second current waveform input terminal of oscillograph 12, line between bus 1 and direct hanging type dynamic reactive generating means 7 arranges reactive generating device connection line current transformer 8, the secondary side A of reactive generating device connection line current transformer 8 is electrically connected with the 3rd current waveform input terminal of oscillograph 12, at transformer 9 step down side current transformer 10 is set, the secondary side A of step down side current transformer 10 is electrically connected with the 4th 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, direct hanging type 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. direct hanging type dynamic reactive generating means response wave shape pick-up unit, comprise bus (1), direct hanging type dynamic reactive generating means (7) and oscillograph (12), on bus (1), be electrically connected with the first current collection circuit (2) respectively, the second current collection circuit (5), transformer (9), direct hanging type dynamic reactive generating means (7) and voltage transformer (VT) (11), it is characterized in that, 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 second current collection circuit (5) is provided with the second current collection line current mutual inductor (6), the secondary side A of the second current collection line current mutual inductor (6) is electrically connected with the second current waveform input terminal of oscillograph (12), line between bus (1) and the direct hanging type dynamic reactive generating means (7) is provided with reactive power compensator connection line current transformer (8), the secondary side A of reactive power compensator connection line current transformer (8) 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 direct hanging type 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 201220644009 CN203037758U (en) | 2012-11-29 | 2012-11-29 | Response waveform detection apparatus for straightly suspended type dynamic reactive generation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220644009 CN203037758U (en) | 2012-11-29 | 2012-11-29 | Response waveform detection apparatus for straightly suspended type dynamic reactive generation device |
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| CN203037758U true CN203037758U (en) | 2013-07-03 |
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| CN 201220644009 Expired - Fee Related CN203037758U (en) | 2012-11-29 | 2012-11-29 | Response waveform detection apparatus for straightly suspended type dynamic reactive generation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102981079A (en) * | 2012-11-29 | 2013-03-20 | 山西省电力公司电力科学研究院 | Response waveform detection device and method for straightly hanging type reactive power generation device |
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2012
- 2012-11-29 CN CN 201220644009 patent/CN203037758U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102981079A (en) * | 2012-11-29 | 2013-03-20 | 山西省电力公司电力科学研究院 | Response waveform detection device and method for straightly hanging type reactive power generation device |
| CN102981079B (en) * | 2012-11-29 | 2014-12-03 | 山西省电力公司电力科学研究院 | Response waveform detection method for straightly hanging type reactive power generation device |
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Granted publication date: 20130703 Termination date: 20181129 |
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| CF01 | Termination of patent right due to non-payment of annual fee |