CN102486524A - 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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- CN102486524A CN102486524A CN2010105765016A CN201010576501A CN102486524A CN 102486524 A CN102486524 A CN 102486524A CN 2010105765016 A CN2010105765016 A CN 2010105765016A CN 201010576501 A CN201010576501 A CN 201010576501A CN 102486524 A CN102486524 A CN 102486524A
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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 DC converter valve action test set of field of power electronics, specifically relate to a kind of DC converter valve and trigger test unit non-periodic.
Background technology
The direct current transportation technology is because its technical and economy obtains over nearly 30 years widely applying, and modal application is to exchange 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 guaranteeing 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 test non-periodic is the part of single valve Insulation Test, and test objective is to verify whether thyristor and auxiliary circuit thereof had enough electric currents and voltage withstand capability when DC converter valve was opened under the high voltage situation of regulation.Trigger the anti-electromagnetic interference test that test can take into account DC converter valve non-periodic.
Summary of the invention
The objective of the invention is; The checking DC converter valve is under the high voltage of regulation; Whether have trigger test unit a kind of non-periodic of enough electric currents and voltage tolerance to thyristor and auxiliary circuit thereof, this device can be taken into account the device of the anti-electromagnetic interference test of DC converter valve.
For realizing the object of the invention; DC converter valve provided by the invention triggers test unit and comprise percussion mechanism D, harmonic inductance L, capacitor C 2, switch, power frequency testing transformer, test product valve V1 and auxiliary valve V2 non-periodic, and it is characterized in that: said device comprises current-limiting resistance R4 and protective resistance R3; Said current-limiting resistance R4 and capacitor C 2 series connection; Said percussion mechanism D comprises wave rear resistance R 1, wave front resistance R2, body capacitor C 1 and batching sphere crack 1; Said batching sphere crack 1 and wave front resistance R2 series connection; Said body capacitor C 1 and wave rear resistance R 1 are connected in parallel on the two ends in batching sphere crack 1.
Preferred DC converter valve provided by the invention triggers in the test unit technical scheme non-periodic: said switch comprises first switch S 1 and second switch S2.
The provided by the invention second preferred DC converter valve triggers in the test unit technical scheme non-periodic: said power frequency testing transformer comprises the first power frequency testing transformer T1 and the second power frequency testing transformer T2.
The provided by the invention the 3rd preferred DC converter valve triggers in the test unit technical scheme non-periodic: said percussion mechanism D, current-limiting resistance R4-capacitor C 2 branch roads, protective resistance R3, test product valve V1 be parallel connection successively; Be connected percussion mechanism D again after said harmonic inductance L and the series connection of first switch S 1; After being connected between capacitor C 2 and the protective resistance R3, said first switch S 1 is connected with test product valve V1 negative electrode again; After being connected between protective resistance R3 and the test product valve V1, said second switch S2 is connected with auxiliary valve V2 negative electrode with test product valve V1 anode again; The said first power frequency testing transformer T1 is connected with test product valve V1 anode respectively at ground; Said second power frequency testing transformer T2 and auxiliary valve V2 connect to form behind the loop and effective grounding; Said percussion mechanism D, current-limiting resistance R4-capacitor C 2 branch roads and the equal effective grounding of protective resistance R3.
Compared with prior art, beneficial effect of the present invention is:
The electric current of changing to auxiliary valve when 1, adopting test product valve shnt capacitor reproduction test product valve to open; Utilize first switch and second switch 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, and hookup is provided with protective resistance R3, in failure condition limit loop current.
2, take into account the anti-electromagnetic interference test of DC converter valve, when test product valve V1 is made an experiment, keep watch on adjacent auxiliary valve V2, whether inspection the false triggering signal occurs and produces wrong repayment signal, therefore can practice thrift great amount of cost and time.
3, test unit is simple, and complete function is monitored auxiliary valve, and takes into account the test of electromagnetic disturbance method Nover practical and the economy of DC converter valve, and test unit has taken into full account the safeguard measure under the failure condition, and device reliability is high.
4, satisfy the application scheme demand that different DC converter valves such as back-to-back DC engineering, super high voltage direct current electricity transmission engineering and extra-high voltage direct-current transmission engineering trigger test non-periodic; Need not complicated sequential when making an experiment and cooperate, it is big to apply the range of adjustment of impacting the moment.
5, utilize the first power frequency testing transformer T1 in the single valve ac voltage withstanding device that test product valve V1 is carried out complementary energy, saved manufacturing cost.
Description of drawings
Fig. 1 DC converter valve triggers the test unit schematic diagram non-periodic;
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 that DC converter valve triggers test unit non-periodic; This device comprises percussion mechanism D, harmonic inductance L, capacitor C 2, protective resistance R3, switch, power frequency testing transformer, test product valve V1 and auxiliary valve V2; Test product valve V1 and capacitor C 2 parallel connections, auxiliary valve V2 is the test product valve of anti-electromagnetic interference test; Switch comprises 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 capacitor C 2 series connection; Percussion mechanism D, current-limiting resistance R4-capacitor C 2 branch roads, protective resistance R3, test product valve V1 and auxiliary valve V2 be parallel connection successively; Percussion mechanism D, current-limiting resistance R4-capacitor C 2 branch roads and the equal effective grounding of protective resistance R3; Be connected percussion mechanism D again after harmonic inductance L and the series connection of first switch S 1; After being connected between capacitor C 2 and the protective resistance R3, first switch S 1 is connected with test product valve V1 negative electrode again; After being connected between protective resistance R3 and the test product valve V1, second switch S2 is connected with auxiliary valve V2 negative electrode with test product valve V1 anode again; The first power frequency testing transformer T1 is connected with test product valve V1 anode respectively at ground; The second power frequency testing transformer T2 and auxiliary valve V2 connect to form behind the loop and effective grounding; Percussion mechanism D comprises wave rear resistance R 1, wave front resistance R2, body capacitor C 1 and batching sphere crack 1; Batching sphere crack 1 and wave front resistance R2 series connection; Body capacitor C 1 and wave rear resistance R 1 are connected in parallel on the two ends in batching sphere crack 1.
Before DC converter valve non-periodic triggering test, open 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 is accomplished, closed first switch S 1 and second switch S2, V1 applies impact to test product valve; Regulate wave front resistance R2 and the wave rear resistance R 1 of percussion mechanism D respectively, and the harmonic inductance L, make test product valve V1 two ends produce the surge voltage that peak value is equivalent to the operation ripple protection level of systematic study decision; Test product valve V1 is triggering and conducting at the impact peak value place, and the energy on the capacitor C 2 is immediately to test product valve V1 switching current, and when opening under the high voltage situation of regulation with checking test product valve V1, 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 the forward bias state; Hookup provided by the invention has taken into full account this requirement, and it is big to apply the range of adjustment of impacting the moment, and impact peak value only needs the positive half-wave of corresponding testing transformer two ends power-frequency voltage constantly.
Test product valve V1 and auxiliary valve V
2The junction is earth potential, and in the anti-electromagnetic interference test that takes into account test product valve V1, impulse overvoltage can not be applied on the auxiliary valve V2, to guarantee auxiliary valve V
2Be not damaged; And when being disturbed conducting as if auxiliary valve V2, power-frequency voltage can not be applied on the test product valve V1, is not damaged to guarantee test product valve V1.
Test product valve V1 voltage waveform is as shown in Figure 2, and test product valve V1 is used for bearing AC power frequency voltage before the test, utilizes test product valve V1 terminal voltage to charge to guarantee the thyristor electronic circuit, and test product valve V1 reaches peak value 580KV constantly at 260us; In the operating impulse voltage peak value moment, test product valve V1 is by the triggered as normal conducting, and the current waveform of test product valve V1 is as shown in Figure 3, reaches peak value 6.8KA at 300us moment test product valve V1 electric current.
Should be noted that at last: combine the foregoing description technical scheme of the present invention to be described but not its restriction.Under the those of ordinary skill in field be to be understood that: those skilled in the art can specific embodiments of the invention make amendment or are equal to replacement, but these modifications or change are all among the claim protection domain that application is awaited the reply.
Claims (4)
1. a DC converter valve triggers test unit non-periodic; Said device comprises percussion mechanism D, harmonic inductance L, capacitor C 2, switch, power frequency testing transformer, test product valve V1 and auxiliary valve V2, it is characterized in that: said device comprises current-limiting resistance R4 and protective resistance R3; Said current-limiting resistance R4 and capacitor C 2 series connection; Said percussion mechanism D comprises wave rear resistance R 1, wave front resistance R2, body capacitor C 1 and batching sphere crack (1); Said batching sphere crack (1) and wave front resistance R2 series connection; Said body capacitor C 1 and wave rear resistance R 1 are connected in parallel on the two ends of batching sphere crack (1).
2. a kind of according to claim 1 DC converter valve triggers test unit non-periodic, it is characterized in that: said switch comprises first switch S 1 and second switch S2.
3. a kind of according to claim 1 DC converter valve triggers test unit non-periodic, it is characterized in that: said power frequency testing transformer comprises the first power frequency testing transformer T1 and the second power frequency testing transformer T2.
4. a kind of according to claim 1 DC converter valve triggers test unit non-periodic, it is characterized in that: said percussion mechanism D, current-limiting resistance R4-capacitor C 2 branch roads, protective resistance R3, test product valve V1 be parallel connection successively; Be connected percussion mechanism D again after said harmonic inductance L and the series connection of first switch S 1; After being connected between capacitor C 2 and the protective resistance R3, said first switch S 1 is connected with test product valve V1 negative electrode again; After being connected between protective resistance R3 and the test product valve V1, said second switch S2 is connected with auxiliary valve V2 negative electrode with test product valve V1 anode again; The said first power frequency testing transformer T1 two ends are connected with test product valve V1 anode with ground respectively; Said second power frequency testing transformer T2 and auxiliary valve V2 connect to form behind the loop and effective grounding; Said percussion mechanism D, current-limiting resistance R4-capacitor C 2 branch roads and the equal effective grounding of protective resistance R3.
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| 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 |
|---|---|---|---|
| CN201010576501.6A CN102486524B (en) | 2010-12-01 | 2010-12-01 | Non-periodic trigger test apparatus of direct current converter valve |
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| Publication Number | Publication Date |
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| CN102486524A true CN102486524A (en) | 2012-06-06 |
| CN102486524B 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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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105911463A (en) * | 2016-01-13 | 2016-08-31 | 武汉水院电气有限责任公司 | DC current-limiting breaker high-voltage heavy-current pulse impact test platform |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002067003A1 (en) * | 2001-02-21 | 2002-08-29 | Abb Ab | Test circuit for hvdc thyristor valves |
| 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 |
-
2010
- 2010-12-01 CN CN201010576501.6A patent/CN102486524B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002067003A1 (en) * | 2001-02-21 | 2002-08-29 | Abb Ab | Test circuit for hvdc thyristor valves |
| 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 |
|---|
| QIANG LI 等: "Study on Non-periodic Firing Test Technique for ETT Thyristor Valves", 《2008 INTERNATIONAL CONFERENCE ON HIGH VOLTAGE ENGINEERING AND APPLICATION》, 9 November 2008 (2008-11-09), pages 470 - 473, XP031418276 * |
| 崔东 等: "+/-500KV HVDC 换流阀冲击试验技术", 《电力设备》, vol. 7, no. 3, 31 March 2006 (2006-03-31), pages 30 - 32 * |
| 崔东 等: "高压直流换流阀及其绝缘试验", 《中国电工技术学会第八届学术会议论文集》, 1 November 2004 (2004-11-01) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105911463A (en) * | 2016-01-13 | 2016-08-31 | 武汉水院电气有限责任公司 | DC current-limiting breaker high-voltage heavy-current pulse impact test platform |
| 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 |
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| CN102486524B (en) | 2015-06-24 |
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Owner name: STATE ELECTRIC NET CROP. Effective date: 20130217 |
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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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