CN102981079A - Response waveform detection device and method for straightly hanging type reactive power generation device - Google Patents
Response waveform detection device and method for straightly hanging type reactive power generation device Download PDFInfo
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- CN102981079A CN102981079A CN2012104982679A CN201210498267A CN102981079A CN 102981079 A CN102981079 A CN 102981079A CN 2012104982679 A CN2012104982679 A CN 2012104982679A CN 201210498267 A CN201210498267 A CN 201210498267A CN 102981079 A CN102981079 A CN 102981079A
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- 238000010248 power generation Methods 0.000 title abstract 4
- 238000001514 detection method Methods 0.000 claims abstract description 7
- 238000005070 sampling Methods 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Abstract
The invention discloses a response time detection device and a response time detection method for a straightly hanging type reactive power generation device, and solves the problem of distortion of first sampling information of test of response time of a straightly hanging type reactive power generation device in the conventional measurement device. The device comprises a bus (1), a straightly hanging type dynamic reactive power generation device (7) and a wave recorder (12), wherein a circuit breaker (3) is arranged between the bus (1) and a first current collecting line (2); the phase A of the secondary side of a current transformer (4) of the first current collecting line, the phase A of the secondary side of a current transformer (6) of a second current collecting line, the phase A of the secondary side of a current transformer (8) of a reactive power compensation and the phase A of the secondary side of a current transformer (10) on the low-voltage side of a transformer are electrically connected with a current waveform input terminal of the wave recorder (12); and the phase A of the secondary side of a voltage transformer (11) is electrically connected with a voltage waveform input terminal of the wave recorder (12). The device and the method are accurate in test and suitable for being used in the field of the power grid.
Description
Technical field
The present invention relates to a kind of dynamic reactive generating means that in electrical network, accesses to pick-up unit and the detection method of the response wave shape of disturbing source.
Background technology
After wind energy turbine set accessed 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 Secretary.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 like this truth of disturbing source, 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 and detection method, 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 is by the above problem of following solution:
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 respectively the first current collection circuit, 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, be provided with the first current collection line current mutual inductor at the first current collection circuit, the secondary side A phase of the first current collection line current mutual inductor is electrically connected with the first current waveform input terminal of oscillograph, be provided with the second current collection line current mutual inductor at the second current collection circuit, the secondary side A phase 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 is provided with reactive generating device connection line current transformer, the secondary side A phase of reactive generating device connection line current transformer is electrically connected with the 3rd current waveform input terminal of oscillograph, be provided with the step down side current transformer at transformer, the secondary side A phase of step down side current transformer is electrically connected with the 4th current waveform input terminal of oscillograph, and the secondary side A phase 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 is the second current collection circuit again;
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 phase 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 phase 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 phase 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 phase 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 phase of voltage transformer (VT) is electrically connected with the voltage waveform input terminal of oscillograph;
The 3rd step, the Sudden Changing Rate 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 begins timing 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, System Reactive Power disturbance 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 respectively the first current collection circuit 2, 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, be provided with the first current collection line current mutual inductor 4 at the first current collection circuit 2, the secondary side A phase of the first current collection line current mutual inductor 4 is electrically connected with the first current waveform input terminal of oscillograph 12, be provided with the second current collection line current mutual inductor 6 at the second current collection circuit 5, the secondary side A phase 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 is provided with reactive generating device connection line current transformer (8), the secondary side A phase of reactive generating device connection line current transformer 8 is electrically connected with the 3rd current waveform input terminal of oscillograph 12, be provided with step down side current transformer 10 at transformer 9, the secondary side A phase 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 phase 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 is the second current collection circuit 5 again;
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 phase 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 phase 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 phase 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 phase 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 phase of voltage transformer (VT) 11 is electrically connected with the voltage waveform input terminal of oscillograph 12;
The 3rd step, the Sudden Changing Rate 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 begins timing 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 (3)
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 respectively the first current collection circuit (2), 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), be provided with the first current collection line current mutual inductor (4) at the first current collection circuit (2), the secondary side A phase of the first current collection line current mutual inductor (4) is electrically connected with the first current waveform input terminal of oscillograph (12), be provided with the second current collection line current mutual inductor (6) at the second current collection circuit (5), the secondary side A phase 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) is provided with reactive power compensator connection line current transformer (8), the secondary side A phase of reactive power compensator connection line current transformer (8) is electrically connected with the 3rd current waveform input terminal of oscillograph (12), be provided with step down side current transformer (10) at transformer (9), the secondary side A phase 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 phase 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.
3. 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 (2), and selecting current collection circuits of other normal operations is the second current collection circuit (5) again;
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 phase 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 phase 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 power compensator connection line current transformer (8), the secondary side A phase of reactive power compensator 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 phase 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 phase of voltage transformer (VT) (11) is electrically connected with the voltage waveform input terminal of oscillograph (12);
The 3rd step, the Sudden Changing Rate of electric current arranges oscillograph (12) when disconnecting according to the isolating switch (3) on the first current collection circuit (2), and arranges that to record the ripple time be 100 milliseconds;
The 4th goes on foot, with isolating switch (3) the first current collection circuit (2) is cut off, and begins timing during from cut-out, crosses 2-3 minute startup oscillograph (12), finishes the sampling of response current waveform and response voltage waveform.
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| CN103558472A (en) * | 2013-11-07 | 2014-02-05 | 国家电网公司 | Method for detecting coordinated operation performance of dynamic reactive power compensation devices in same wind power plant |
| CN103558471A (en) * | 2013-11-07 | 2014-02-05 | 国家电网公司 | Method for measuring response time of straightly-hung type dynamic reactive generating devices with unified time scales |
| CN103592531A (en) * | 2013-10-21 | 2014-02-19 | 国家电网公司 | Method and system for detecting parameters of wind power plant static var generator |
| CN103592532A (en) * | 2013-10-21 | 2014-02-19 | 国家电网公司 | Method and system for detecting parameters of wind power plant static var compensator |
| CN103698623A (en) * | 2013-11-07 | 2014-04-02 | 国家电网公司 | Method for measuring the response time of dynamic reactive power compensation device under united time scale |
| CN105388372A (en) * | 2015-10-23 | 2016-03-09 | 中国电力科学研究院 | Wind farm reactive power compensation device dynamic response time detection method |
| 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 |
| CN106199286A (en) * | 2016-08-20 | 2016-12-07 | 国网山西省电力公司电力科学研究院 | Wind energy turbine set dynamic reactive compensation device response speed method of testing |
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| CN103592531B (en) * | 2013-10-21 | 2016-03-02 | 国家电网公司 | A kind of parameter detection method of wind energy turbine set static reacance generator and system |
| CN103592531A (en) * | 2013-10-21 | 2014-02-19 | 国家电网公司 | Method and system for detecting parameters of wind power plant static var generator |
| CN103592532A (en) * | 2013-10-21 | 2014-02-19 | 国家电网公司 | Method and system for detecting parameters of wind power plant static var compensator |
| CN103592532B (en) * | 2013-10-21 | 2016-03-02 | 国家电网公司 | A kind of parameter detection method of wind energy turbine set Static Var Compensator and system |
| CN103558471A (en) * | 2013-11-07 | 2014-02-05 | 国家电网公司 | Method for measuring response time of straightly-hung type dynamic reactive generating devices with unified time scales |
| CN103698623A (en) * | 2013-11-07 | 2014-04-02 | 国家电网公司 | Method for measuring the response time of dynamic reactive power compensation device under united time scale |
| CN103558472A (en) * | 2013-11-07 | 2014-02-05 | 国家电网公司 | Method for detecting coordinated operation performance of dynamic reactive power compensation devices in same wind power plant |
| CN105388372A (en) * | 2015-10-23 | 2016-03-09 | 中国电力科学研究院 | Wind farm reactive power compensation device dynamic response time detection method |
| CN105388372B (en) * | 2015-10-23 | 2018-08-28 | 中国电力科学研究院 | A kind of Reactive Compensation in Wind Farm device dynamic response time detection method |
| 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 |
| CN106199286A (en) * | 2016-08-20 | 2016-12-07 | 国网山西省电力公司电力科学研究院 | Wind energy turbine set dynamic reactive compensation device response speed method of testing |
| CN106199286B (en) * | 2016-08-20 | 2019-01-11 | 国网山西省电力公司电力科学研究院 | Wind power plant dynamic reactive compensation device response speed test method |
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