CN102486524B - Non-periodic trigger test apparatus of direct current converter valve - Google Patents
Non-periodic trigger test apparatus of direct current converter valve Download PDFInfo
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- 238000012360 testing method Methods 0.000 title claims abstract description 133
- 230000000737 periodic effect Effects 0.000 claims abstract description 10
- 238000009527 percussion Methods 0.000 claims description 17
- 230000001681 protective effect Effects 0.000 claims description 16
- 230000009897 systematic effect Effects 0.000 claims description 2
- 230000001960 triggered effect Effects 0.000 claims description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The invention provides a non-periodic trigger test apparatus of a direct current converter valve. The apparatus comprises an impact device D, a harmonic inductor L, a capacitor C2, a switch, a power frequency transformer, a test valve V1, a test valve V2, a current-limiting resistor R4, and a protection resistor R3. The current-limiting resistor R4 is in series connection with the capacitor C2. The impact device D includes a wave tail resistor R1, a wave head resistor R2, a body capacitor C1, and an isolation sphere gap (1); the isolation sphere gap (1) is in series connection with the wave head resistor R2; and the body capacitor C1 and the wave tail resistor R1 are arranged at two ends of the isolation sphere gap (1) in a parallel connection mode. According to the provided non-periodic trigger test apparatus of a direct current converter valve in the invention, application scheme demands of different direct current converter valve non-periodic trigger tests of a back-to-back direct current project, an ultra-high voltage direct current power transmission project and an extra-high voltage direct current power transmission project and the like can be met; moreover, the test apparatus is simple and has comprehensive functions; and manufacturing cost is saved.
Description
Technical field
The present invention relates to a kind of testing direct current converter valve device of field of power electronics, specifically relate to a kind of Aperiodic triggering test device of direct-current converting valve.
Background technology
HVDC Transmission Technology, because it is technical and economy, is widely applied over nearly 30 years, and modal application exchanges networking and long distance powedr transmission back-to-back.The equipment of DC engineering most critical is current conversion station, and DC converter valve is the core component of current conversion station.For ensureing the reliability of DC engineering, DC converter valve supplier must carry out type approval test to DC converter valve, comprises Insulation Test and running test.Trigger the part that test is single valve Insulation Test non-periodic, test objective is that when verifying that DC converter valve is opened in the high voltage situation specified, whether thyristor and auxiliary circuit thereof have enough electric currents and voltage withstand capability.Trigger the anti-electromagnetic interference test that test can take into account DC converter valve non-periodic.
Summary of the invention
The object of the invention is, checking DC converter valve is under the high voltage of regulation, whether thyristor and auxiliary circuit thereof are had to the triggering test device a kind of non-periodic of enough electric currents and voltage tolerance, this device can take into account the device of the anti-electromagnetic interference test of DC converter valve.
For realizing object of the present invention, Aperiodic triggering test device of direct-current converting valve provided by the invention comprises percussion mechanism D, harmonic inductance L, electric capacity C2, switch, power frequency testing transformer, test product valve V1 and auxiliary valve V2, it is characterized in that: described device comprises current-limiting resistance R4 and protective resistance R3; Described current-limiting resistance R4 and electric capacity C2 connects; Described percussion mechanism D comprises wave terminal resistance R1, wave front resistance R2, this body capacitance C1 and batching sphere gap 1; Described batching sphere gap 1 and wave front resistance R2 connect; Described body capacitance C1 and wave terminal resistance R1 is connected in parallel on the two ends of batching sphere gap 1.
In preferred Aperiodic triggering test device of direct-current converting valve technical scheme provided by the invention: described switch comprises the first switch S 1 and second switch S2.
In provided by the invention second preferred Aperiodic triggering test device of direct-current converting valve technical scheme: described power frequency testing transformer comprises the first power frequency testing transformer T1 and the second power frequency testing transformer T2.
In provided by the invention 3rd preferred Aperiodic triggering test device of direct-current converting valve technical scheme: described percussion mechanism D, current-limiting resistance R4-electric capacity C2 branch road, protective resistance R3, test product valve V1 are in parallel successively; Described harmonic inductance L is connected percussion mechanism D after connecting with the first switch S 1 again; Described first switch S 1 is connected to after between electric capacity C2 and protective resistance R3 and is connected with test product valve V1 negative electrode; Described second switch S2 is connected to after between protective resistance R3 and test product valve V1 and is connected with test product valve V1 anode and auxiliary valve V2 negative electrode; Described first power frequency testing transformer T1 is connected with test product valve V1 anode respectively at ground; Described second power frequency testing transformer T2 and auxiliary valve V2 connects to form also effective grounding behind loop; Described percussion mechanism D, current-limiting resistance R4-electric capacity C2 branch road and the equal effective grounding of protective resistance R3.
Compared with prior art, beneficial effect of the present invention is:
To the electric current of auxiliary valve conversion when 1, adopting test product valve shnt capacitor reproduction test product valve to open; the first switch and second switch is utilized to realize the switching of test before and after test circuit; and adopt the first power frequency testing transformer T1 and the second power frequency testing transformer T2 is respectively test product valve V1 and auxiliary valve V2 carries out AC charging; wherein auxiliary valve V2 is the test product valve of valve anti-electromagnetic interference test; hookup is provided with protective resistance R3, in case of a fault limit circuit electric current.
2, take into account the anti-electromagnetic interference test of DC converter valve, when test product valve V1 is tested, monitor adjacent auxiliary valve V2, check whether the return signal occurring false triggering signal and produce mistake, therefore can save great amount of cost and time.
3, test unit is simple, complete function, monitoring auxiliary valve, and takes into account the test of electromagnetic disturbance method Nover practical of DC converter valve and economy, and test unit has taken into full account the safeguard measure under failure condition, and device reliability is high.
4, the application scheme demand that the different direct current converter valve non-periodic such as back-to-back DC engineering, super high voltage direct current electricity transmission engineering and extra-high voltage direct-current transmission engineering triggers test is met, without the need to the time cooperation of complexity when testing, the range of adjustment applying the impact moment is large.
5, utilize the first power frequency testing transformer T1 in single valve ac voltage withstanding device to carry out complementary energy to test product valve V1, save manufacturing cost.
Accompanying drawing explanation
Fig. 1 Aperiodic triggering test device of direct-current converting valve schematic diagram;
The voltage waveform of Fig. 2 test product valve;
The current waveform of Fig. 3 test product valve.
Embodiment
Fig. 1 is the schematic diagram of Aperiodic triggering test device of direct-current converting valve, this device comprises percussion mechanism D, harmonic inductance L, electric capacity C2, protective resistance R3, switch, power frequency testing transformer, test product valve V1 and auxiliary valve V2, test product valve V1 and electric capacity C2 is in parallel, and auxiliary valve V2 is the test product valve of anti-electromagnetic interference test; Switch comprises the first switch S 1 and second switch S2; Power frequency testing transformer comprises the first power frequency testing transformer T1 and the second power frequency testing transformer T2; Current-limiting resistance R4 and electric capacity C2 connects; Percussion mechanism D, current-limiting resistance R4-electric capacity C2 branch road, protective resistance R3, test product valve V1 and auxiliary valve V2 are in parallel successively; Percussion mechanism D, current-limiting resistance R4-electric capacity C2 branch road and the equal effective grounding of protective resistance R3; Harmonic inductance L is connected percussion mechanism D after connecting with the first switch S 1 again; First switch S 1 is connected to after between electric capacity C2 and protective resistance R3 and is connected with test product valve V1 negative electrode; Second switch S2 is connected to after between protective resistance R3 and test product valve V1 and is connected with test product valve V1 anode and auxiliary valve V2 negative electrode; First power frequency testing transformer T1 is connected with test product valve V1 anode respectively at ground; Second power frequency testing transformer T2 and auxiliary valve V2 connects to form also effective grounding behind loop; Percussion mechanism D comprises wave terminal resistance R1, wave front resistance R2, this body capacitance C1 and batching sphere gap 1; Batching sphere gap 1 and wave front resistance R2 connect; This body capacitance C1 and wave terminal resistance R1 is connected in parallel on the two ends of batching sphere gap 1.
Before direct current converter valve non-periodic triggers test, open the first switch S 1 and second switch S2, use the first power frequency testing transformer T1 and the second power frequency testing transformer T2 is respectively test product valve V1 and auxiliary valve V2 carries out AC charging; After charging complete, closed first switch S 1 and second switch S2, apply to impact to test product valve V1; Regulate wave front resistance R2 and the wave terminal resistance R1 of percussion mechanism D respectively, and harmonic inductance L, make test product valve V1 two ends generation peak value be equivalent to the surge voltage of the operation ripple level of protection that systematic study determines; Test product valve V1 is in impact peak value place triggering and conducting, and the energy on electric capacity C2 is immediately to test product valve V1 switching current, and during to verify that test product valve V1 opens in the high voltage situation specified, whether thyristor and auxiliary circuit thereof have enough electric currents and voltage withstand capability.
Test product valve V1 impact peak value place triggering and conducting, auxiliary valve V2 should be in forward bias condition, hookup provided by the invention has taken into full account this requirement, applies to impact the range of adjustment in moment large, and the impact peak value moment only needs the positive half-wave of corresponding testing transformer two ends power-frequency voltage.
Test product valve V1 and auxiliary valve V
2junction is earth potential, and while the anti-electromagnetic interference test taking into account test product valve V1, impulse overvoltage can not be applied on auxiliary valve V2, to ensure auxiliary valve V
2be not damaged; And if during the disturbed conducting of auxiliary valve V2, power-frequency voltage can not be applied on test product valve V1, to ensure that test product valve V1 is not damaged.
As shown in Figure 2, before test, test product valve V1 is used for bearing AC power frequency voltage test product valve V1 both end voltage waveform, and to ensure that thyristor electronic circuit utilizes test product valve V1 terminal voltage to charge, test product valve V1 reaches peak value 580KV in the 260us moment; Operating impulse voltage peak value moment, test product valve V1 is by triggered as normal conducting, and the current waveform of test product valve V1 as shown in Figure 3, reaches peak value 6.8KA at 300us moment test product valve V1 electric current.
Finally should be noted that: illustrate that technical scheme of the present invention is not intended to limit in conjunction with above-described embodiment.Those of ordinary skill in the field are to be understood that: those skilled in the art can modify to the specific embodiment of the present invention or equivalent replacement, but these amendments or change are all being applied among the claims awaited the reply.
Claims (1)
1. an Aperiodic triggering test device of direct-current converting valve, described device comprises percussion mechanism D, harmonic inductance L, electric capacity C2, switch, power frequency testing transformer, test product valve V1 and auxiliary valve V2, it is characterized in that: described device comprises current-limiting resistance R4 and protective resistance R3; Described current-limiting resistance R4 and electric capacity C2 connects; Described percussion mechanism D comprises wave terminal resistance R1, wave front resistance R2, this body capacitance C1 and batching sphere gap (1); Described batching sphere gap (1) and wave front resistance R2 connect; Described body capacitance C1 and wave terminal resistance R1 is connected in parallel on the two ends of batching sphere gap (1);
Described switch comprises the first switch S 1 and second switch S2;
Described power frequency testing transformer comprises the first power frequency testing transformer T1 and the second power frequency testing transformer T2;
Described percussion mechanism D, current-limiting resistance R4-electric capacity C2 branch road, protective resistance R3, test product valve V1 are in parallel successively; Described harmonic inductance L is connected percussion mechanism D after connecting with the first switch S 1 again; Described first switch S 1 is connected to after between electric capacity C2 and protective resistance R3 and is connected with test product valve V1 negative electrode; Described second switch S2 is connected to after between protective resistance R3 and test product valve V1 and is connected with test product valve V1 anode and auxiliary valve V2 negative electrode; Described first power frequency testing transformer T1 two ends are connected with ground and test product valve V1 anode respectively; Described second power frequency testing transformer T2 and auxiliary valve V2 connects to form also effective grounding behind loop; Described percussion mechanism D, current-limiting resistance R4-electric capacity C2 branch road and the equal effective grounding of protective resistance R3;
Before direct current converter valve non-periodic triggers test, open the first switch S 1 and second switch S2, use the first power frequency testing transformer T1 and the second power frequency testing transformer T2 is respectively test product valve V1 and auxiliary valve V2 carries out AC charging; After charging complete, closed first switch S 1 and second switch S2, apply to impact to test product valve V1; Regulate wave front resistance R2 and the wave terminal resistance R1 of percussion mechanism D respectively, and harmonic inductance L, make test product valve V1 two ends generation peak value be equivalent to the surge voltage of the operation ripple level of protection that systematic study determines; Test product valve V1 is in impact peak value place triggering and conducting, and the energy on electric capacity C2 is immediately to test product valve V1 switching current, and during to verify that test product valve V1 opens in the high voltage situation specified, whether thyristor and auxiliary circuit thereof have enough electric currents and voltage withstand capability;
Test product valve V1 impact peak value place triggering and conducting, auxiliary valve V2 should be in forward bias condition, non-periodic, the hookup of triggering test device took into full account this requirement, applied to impact the range of adjustment in moment large, and the impact peak value moment only needs the positive half-wave of corresponding testing transformer two ends power-frequency voltage;
Test product valve V1 and auxiliary valve V
2junction is earth potential, and while the anti-electromagnetic interference test taking into account test product valve V1, impulse overvoltage can not be applied on auxiliary valve V2, to ensure auxiliary valve V
2be not damaged; And if during the disturbed conducting of auxiliary valve V2, power-frequency voltage can not be applied on test product valve V1, to ensure that test product valve V1 is not damaged;
Before test, test product valve V1 is used for bearing AC power frequency voltage, and to ensure that thyristor electronic circuit utilizes test product valve V1 terminal voltage to charge, test product valve V1 reaches peak value 580KV in the 260us moment; Operating impulse voltage peak value moment, test product valve V1, by triggered as normal conducting, reaches peak value 6.8KA at 300us moment test product valve V1 electric current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010576501.6A CN102486524B (en) | 2010-12-01 | 2010-12-01 | Non-periodic trigger test apparatus of direct current converter valve |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010576501.6A CN102486524B (en) | 2010-12-01 | 2010-12-01 | Non-periodic trigger test apparatus of direct current converter valve |
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| CN102486524A CN102486524A (en) | 2012-06-06 |
| CN102486524B true CN102486524B (en) | 2015-06-24 |
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| CN201010576501.6A Active CN102486524B (en) | 2010-12-01 | 2010-12-01 | Non-periodic trigger test apparatus of direct current converter valve |
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| CN105911463B (en) * | 2016-01-13 | 2018-12-14 | 武汉水院电气有限责任公司 | A kind of direct current current-limiting circuit breaker high-voltage great-current pulse shock test platform |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201075122Y (en) * | 2007-08-30 | 2008-06-18 | 中国电力科学研究院 | Off-cycle triggering tester of high voltage DC transmission converter valve |
| CN201107384Y (en) * | 2007-11-14 | 2008-08-27 | 中国电力科学研究院 | High voltage dc transmission stream exchanging valve non-periodic triggering tester based on charging in parallel |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE518628C2 (en) * | 2001-02-21 | 2002-11-05 | Abb Ab | Test circuit for HVDC thyristor valves and method for synthetic testing |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201075122Y (en) * | 2007-08-30 | 2008-06-18 | 中国电力科学研究院 | Off-cycle triggering tester of high voltage DC transmission converter valve |
| CN201107384Y (en) * | 2007-11-14 | 2008-08-27 | 中国电力科学研究院 | High voltage dc transmission stream exchanging valve non-periodic triggering tester based on charging in parallel |
Non-Patent Citations (3)
| Title |
|---|
| +/-500KV HVDC 换流阀冲击试验技术;崔东 等;《电力设备》;20060331;第7卷(第3期);第30-32页 * |
| Study on Non-periodic Firing Test Technique for ETT Thyristor Valves;Qiang Li 等;《2008 International Conference on High Voltage Engineering and Application》;20081109;第470-473页 * |
| 高压直流换流阀及其绝缘试验;崔东 等;《中国电工技术学会第八届学术会议论文集》;20041101;第257页第3.1.3节，图5 * |
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Effective date of registration: 20130217 Address after: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Applicant after: China Electric Power Research Institute Applicant after: State Grid Corporation of China Address before: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Applicant before: China Electric Power Research Institute |
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