CN102486519B - Impulse voltage test device for direct current converter valve - Google Patents
Impulse voltage test device for direct current converter valve Download PDFInfo
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- CN102486519B CN102486519B CN201010576617.XA CN201010576617A CN102486519B CN 102486519 B CN102486519 B CN 102486519B CN 201010576617 A CN201010576617 A CN 201010576617A CN 102486519 B CN102486519 B CN 102486519B
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- 238000012360 testing method Methods 0.000 title claims abstract description 100
- 230000001681 protective effect Effects 0.000 claims description 18
- 238000009527 percussion Methods 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 description 7
- 230000000295 complement effect Effects 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Abstract
The invention provides an impulse voltage test device for a direct current converter valve. The device comprises an impulse device D, a power frequency test transformer T1, a test sample valve V1, a protection resistor R3 and a switch, wherein the switch comprises a first switch S1 and a second switch S2; the impulse device D, the protection resistor R3 and the test sample valve V1 are connected in parallel with one another sequentially; the first switch S1 is connected between the impulse device D and the protection resistor R3, and then is connected with the negative electrode of the test sample valve V1; the second switch S2 is connected between the protection resistor R3 and the test sample valve V1, and then is connected with the positive electrode of the test sample valve V1; and two ends of the power frequency test transformer T1 are connected with the ground and the positive electrode of the test sample valve V1 respectively. The impulse voltage test device for the direct current converter valve meets test requirements for switching impulse, thunder impulse and steep wave impulse, is novel and simple, has multiple functions, and can be suitable for test demands of the direct current converter valves in different types of voltage engineering.
Description
Technical field
A kind of testing direct current converter valve device that the present invention relates to field of power electronics, specifically relates to a kind of impulse-voltage test device for 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 is to exchange back-to-back networking and long distance powedr transmission.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.Impulse test is a part for DC converter valve Insulation Test, and it comprises switching impulse test, lightning impulse test and steep front-of-wave test.Test objective is the checking DC converter valve relevant voltage characteristic of superpotential that can withstand shocks; DC converter valve can bear the superpotential of regulation; each internal overvoltage protection loop is effective; the interference-free impact of DC converter valve electronic unit and function are correct, and DC converter valve can trigger and avoid damaging under the excessive voltage condition of regulation.
Summary of the invention
The object of the invention is to verify can withstand shocks a kind of impulse-voltage test device for direct-current converting valve of the relevant voltage characteristic of superpotential of DC converter valve; test unit is simple; complete function, and taken into full account the safeguard measure under failure condition, install to such an extent that reliability is high.
For realizing object of the present invention, a kind of impulse-voltage test device for direct-current converting valve provided by the invention comprises percussion mechanism D, power frequency testing transformer T1 and test product valve V1, and its improvements are: described device comprises protective resistance R3 and switch; Described switch comprises the first switch S 1 and second switch S2; Described percussion mechanism D, protective resistance R3 and test product valve V1 are in parallel successively; Described the first switch S 1 is connected with test product valve V1 negative electrode after being connected between percussion mechanism D and protective resistance R3; After described second switch S2 is connected between protective resistance R3 and test product valve V1 in test product valve V1 anodic bonding; Described power frequency testing transformer T1 two ends respectively with ground and test product valve V1 anodic bonding.
In preferred impulse-voltage test device for direct-current converting valve technical scheme provided by the invention: described percussion mechanism D and the equal effective grounding of protective resistance R3.
Compared with prior art, the beneficial effect that the present invention reaches is:
1, utilize the first switch S 1 and second switch S2 to realize the switching of test before and after test circuit, and to adopt power frequency testing transformer T1 be that test product valve V1 carries out AC charging, in hookup, have protective resistance R3, under failure condition, limit loop current.
2, test unit is simple, complete function, and taken into full account the safeguard measure under failure condition, the reliability of device is high.
3, meet the application scheme demand of the different DC converter valve impulse tests such as back-to-back DC engineering, super high voltage direct current electricity transmission engineering and extra-high voltage direct-current transmission engineering, while test, coordinate without complicated sequential, the range of adjustment that applies the impact moment is large.
4, meet switching impulse, lightning impulse and the requirement of steep wave impulse test, novel succinct, the complete function in test loop.
5, utilize the power frequency testing transformer T1 in ac voltage withstanding device to carry out complementary energy to test product valve V1, reduced the insulating requirements to the first switch S 1 and second switch S2, save manufacturing cost.
Brief description of the drawings
Fig. 1 impulse-voltage test device for direct-current converting valve schematic diagram;
The operating impulse voltage oscillogram of Fig. 2 test product valve;
The lightning impulse voltage oscillogram of Fig. 3 test product valve;
The steep wave High Voltage Impulse Waveform figure of Fig. 4 test product valve.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Fig. 1 is impulse-voltage test device for direct-current converting valve schematic diagram provided by the invention, and this device comprises percussion mechanism D, protective resistance R3, switch, power frequency testing transformer T1 and test product valve V1; Switch comprises the first switch S 1 and second switch S2; Percussion mechanism D, protective resistance R3, second switch S2 and test product valve V1 are in parallel successively; Percussion mechanism D and the equal effective grounding of protective resistance R3; The first switch S 1 is connected with test product valve V1 negative electrode after being connected between percussion mechanism D and protective resistance R3; After second switch S2 is connected between protective resistance R3 and test product valve V1 in test product valve V1 anodic bonding; Power frequency testing transformer T1 two ends respectively with ground and test product valve V1 anodic bonding.Percussion mechanism D comprises batching sphere gap 1, body capacitor C 1, wave rear resistance R 1 and wave front resistance R2; Batching sphere gap 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 of batching sphere gap 1.
Before direct current converter valve impulse voltage test, open the first switch S 1 and second switch S2, using power frequency testing transformer T1 is test product valve V1 AC charging, under this kind of charging modes, protective resistance R3 can form complementary energy loop with test product valve V1, thereby limits loop current protection power frequency testing transformer T1 can there is the faults such as conducting at test product valve V1 again time; After having charged, closed the first switch S 1 and second switch S2, by percussion mechanism D, test product valve V1 is applied to impact, this kind of impact applies under mode, can evade percussion mechanism D occurs in the time the fault such as putting and the power-frequency voltage infringement that test product valve V1 is caused that superposes in the charging moment, also can protect the power frequency testing transformer voltage that do not withstand shocks, while preventing from charging, power-frequency voltage is applied on percussion mechanism D simultaneously; Regulate respectively wave front resistance R2, the wave rear resistance R 1 of percussion mechanism D; make test product valve V1 two ends produce the surge voltage that peak value is equivalent to the operation ripple level of protection of systematic study decision; meet switching impulse, lightning impulse and steep wave impulse test, three kinds of trial voltage waveforms are as shown in Fig. 2,3 and 4.
In Fig. 2, be the voltage waveform of switching impulse test test product valve V1, under switching impulse test, the voltage of test product valve V1 reaches peak value 550KV in the 300us moment; Fig. 3 is the voltage waveform of lightning impulse test test product valve V1, and under lightning impulse test, the voltage of test product valve V1 reaches peak value 780KV in the 300us moment; Fig. 4 is the voltage waveform of steep wave impulse test test product valve V1, and under steep wave impulse test, the voltage of test product valve V1 reaches peak value 800KV in the 50us moment.
Test unit provided by the invention is simple, novel succinct, be easy to the enforcement of test, test method can adapt to the test demand of the different application scheme DC converter valves such as back-to-back DC engineering, conventional high voltage direct current transmission project, extra-high voltage direct-current transmission engineering and super high voltage direct current electricity transmission engineering; The protective resistance the invention provides in test unit has taken into full account the safeguard measure under failure condition, and the reliability of device is high.Utilize the power frequency testing transformer in ac voltage withstanding device to carry out complementary energy to test product valve simultaneously, reduced the insulating requirements to the first switch S 1 and second switch S2, saved manufacturing cost.
Finally should be noted that: illustrate that in conjunction with above-described embodiment technical scheme of the present invention is not intended to limit.Those of ordinary skill in the field are to be understood that: those skilled in the art can modify or be equal to replacement the specific embodiment of the present invention, but among the claim protection domain that these amendments or change are all awaited the reply in application.
Claims (2)
1. an impulse-voltage test device for direct-current converting valve, described device comprises percussion mechanism D, power frequency testing transformer T1 and test product valve V1, it is characterized in that: described device comprises protective resistance R3 and switch; Described switch comprises the first switch S 1 and second switch S2; Described percussion mechanism D, protective resistance R3 and test product valve V1 are in parallel successively; Described the first switch S 1 is connected with test product valve V1 negative electrode after being connected between percussion mechanism D and protective resistance R3; Described second switch S2 is connected between protective resistance R3 and test product valve V1, and one end of second switch S2 and test product valve V1 anodic bonding; Described power frequency testing transformer T1 two ends respectively with ground and test product valve V1 anodic bonding.
2. a kind of impulse-voltage test device for direct-current converting valve as claimed in claim 1, is characterized in that: described percussion mechanism D and the equal effective grounding of protective resistance R3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010576617.XA CN102486519B (en) | 2010-12-01 | 2010-12-01 | Impulse voltage test device for direct current converter valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010576617.XA CN102486519B (en) | 2010-12-01 | 2010-12-01 | Impulse voltage test device for direct current converter valve |
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| Publication Number | Publication Date |
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| CN102486519A CN102486519A (en) | 2012-06-06 |
| CN102486519B true CN102486519B (en) | 2014-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010576617.XA Active CN102486519B (en) | 2010-12-01 | 2010-12-01 | Impulse voltage test device for direct current converter valve |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102998602A (en) * | 2012-11-23 | 2013-03-27 | 云南电力试验研究院（集团）有限公司电力研究院 | Method of inspecting influence of impulse voltage on power frequency device in power frequency and impulse synthetic and combined testing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101187690A (en) * | 2007-11-28 | 2008-05-28 | 中国电力科学研究院 | DC converter valve restoration period transient forward voltage test method |
| CN201352251Y (en) * | 2009-01-21 | 2009-11-25 | 许继集团有限公司 | Impact test device of high voltage direct current (HVDC) power transmission converter valve |
| CN101339221B (en) * | 2008-08-12 | 2010-06-23 | 中国西电电气股份有限公司 | Test device for reactor volt-second characteristic of high voltage direct current transmission valve |
-
2010
- 2010-12-01 CN CN201010576617.XA patent/CN102486519B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101187690A (en) * | 2007-11-28 | 2008-05-28 | 中国电力科学研究院 | DC converter valve restoration period transient forward voltage test method |
| CN101339221B (en) * | 2008-08-12 | 2010-06-23 | 中国西电电气股份有限公司 | Test device for reactor volt-second characteristic of high voltage direct current transmission valve |
| CN201352251Y (en) * | 2009-01-21 | 2009-11-25 | 许继集团有限公司 | Impact test device of high voltage direct current (HVDC) power transmission converter valve |
Non-Patent Citations (4)
| Title |
|---|
| ±500 kV HVDC换流阀冲击试验技术;崔东等;《电力设备》;20060331;第7卷(第3期);30-32 * |
| 周会高.特高压直流输电换流阀运行试验的预期参数.《高电压技术》.2010,第36卷(第1期),74-80. |
| 崔东等.±500 kV HVDC换流阀冲击试验技术.《电力设备》.2006,第7卷(第3期),30-32. |
| 特高压直流输电换流阀运行试验的预期参数;周会高;《高电压技术》;20100131;第36卷(第1期);74-80 * |
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| CN102486519A (en) | 2012-06-06 |
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Effective date of registration: 20130216 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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