CN201892723U - Impulse-voltage test device for direct-current converting valve - Google Patents
Impulse-voltage test device for direct-current converting valve Download PDFInfo
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- CN201892723U CN201892723U CN2010206455544U CN201020645554U CN201892723U CN 201892723 U CN201892723 U CN 201892723U CN 2010206455544 U CN2010206455544 U CN 2010206455544U CN 201020645554 U CN201020645554 U CN 201020645554U CN 201892723 U CN201892723 U CN 201892723U
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- 238000012360 testing method Methods 0.000 title claims abstract description 99
- 230000001681 protective effect Effects 0.000 claims abstract description 22
- 230000007246 mechanism Effects 0.000 claims description 19
- 238000009527 percussion Methods 0.000 claims description 19
- 239000003990 capacitor Substances 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 abstract description 12
- 230000000295 complement effect Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 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
- 230000035939 shock Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
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Abstract
The utility model provides an impulse-voltage test device for a direct-current converting valve, which comprises an impulsive device D, a protective resistor R3, switches, a power-frequency testing transformer T1 and a specimen valve V1, wherein the impulsive device D, the protective resistor R3 and the specimen valve V1 are sequentially connected in parallel, and a first switch S1 is connected with the cathode of the specimen valve V1 after being connected between the impulsive device D and the protective resistor R3; a second switch S2 is connected with the anode of the specimen valve V1 after being connected between the protective resistor R3 and the specimen valve V1; and both ends of the power-frequency testing transformer T1 are respectively connected with the ground and the anode of the specimen valve V1. The test requirements of operating impulses, lightning impulses and steep-wave impulses are met by the impulse-voltage testing device for the direct-current converting valve provided by the utility model, and the test device is novel and concise and has comprehensive functions; and the impulse-voltage test device can be adapted to the test requirements of the direct-current converting valves in different application schemes, such as back-to-back direct-current projects, conventional high-voltage direct-current transmission projects, extra-high-voltage direct-current transmission projects, super-high-voltage direct-current transmission projects and the like.
Description
Technical field
The utility model relates to a kind of DC converter valve action test set of field of power electronics, specifically relates to a kind of DC converter valve impulse voltage test device.
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.Impulse test is the part of 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 all is effective; interference-free influence of DC converter valve electronic unit and function are correct, and DC converter valve can trigger under the excessive voltage condition of regulation and avoid damaging.
The utility model content
The purpose of this utility model is, provide a kind of test unit simple, novel succinct, be easy to test and implement DC converter valve impulse voltage test device, this device can adapt to the test demand of 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.
For realizing the purpose of this utility model, the utility model provides a kind of DC converter valve impulse voltage test device, and its improvements are: this device comprises percussion mechanism D, protective resistance R3, switch, power frequency testing transformer T1 and test product valve V1; Described switch comprises 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 first switch S 1 is connected with test product valve V1 negative electrode after being connected between percussion mechanism D and the protective resistance R3; Described second switch S2 connects in test product valve V1 anode after being connected between protective resistance R3 and the test product valve V1; Described power frequency testing transformer T1 two ends are connected with test product valve V1 anode with ground respectively; Described percussion mechanism D comprises batching sphere crack 1, body capacitor C 1, wave rear resistance R 1 and wave front resistance R2; Described batching sphere crack 1 and wave front resistance R2 series connection; Described body capacitor C 1 and wave rear resistance R 1 are connected in parallel on the two ends in batching sphere crack 1.
In the preferred DC converter valve impulse voltage test device technique scheme that the utility model provides: described percussion mechanism D and the equal effective grounding of protective resistance R3.
Compared with prior art, the beneficial effects of the utility model are:
1, utilizes first switch S 1 and second switch S2 to realize the switching of test before and after test circuit, and adopt power frequency testing transformer T1 to carry out AC charging, protective resistance is arranged in the hookup, under failure condition, limit loop current for test product valve V1.
2, test unit is simple, complete function, and taken into full account the safeguard measure under the failure condition, the reliability height of device.
3, satisfy the application scheme demand of 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, need not complicated sequential when testing and cooperate, it is big to apply the range of adjustment of impacting the moment.
4, satisfy switching impulse, lightning impulse and the requirement of steep wave impulse test, novel succinct, the complete function of test unit.
5, utilize the power frequency testing transformer in the ac voltage withstanding device that test product valve is carried out complementary energy, reduced insulating requirements, saved manufacturing cost first switch S 1 and second switch S2.
Description of drawings
Fig. 1 DC converter valve impulse voltage test schematic diagram of device;
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 surge voltage oscillogram of Fig. 4 test product valve.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Fig. 1 is the DC converter valve impulse voltage test schematic diagram of device that the utility model provides, and this device comprises percussion mechanism D, protective resistance R3, switch, power frequency testing transformer T1 and test product valve V1; Switch comprises 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; First switch S 1 is connected with test product valve V1 negative electrode after being connected between percussion mechanism D and the protective resistance R3; Second switch S2 is connected with test product valve V1 anode after being connected between protective resistance R3 and the test product valve V1; Power frequency testing transformer T1 two ends are connected with test product valve V1 anode with ground respectively.Percussion mechanism D comprises batching sphere crack 1, body capacitor C 1, wave rear resistance R 1 and wave front resistance R2; 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 the DC converter valve impulse voltage test; open first switch S 1 and second switch S2; use power frequency testing transformer T1 to carry out AC charging as test product valve V1; protective resistance R3 can form the complementary energy loop with test product valve V1 under this kind charging modes, thereby can the restriction loop current protect power frequency testing transformer T1 when faults such as test product valve V1 generation conducting again.
After charging is finished; closed first switch S 1 and second switch S2; percussion mechanism D applies impact to test product valve V1; this kind impact applies under the mode; can evade percussion mechanism D and the infringement that superposes test product valve V1 is caused with power-frequency voltage constantly take place when fault such as putting in charging; also can protect the power frequency testing transformer T1 voltage that do not withstand shocks, power-frequency voltage is applied on the percussion mechanism D when preventing to charge simultaneously.
Regulate wave front resistance R2, the wave rear resistance R 1 of percussion mechanism D respectively; 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; satisfy switching impulse, lightning impulse and steep wave impulse test, three kinds of trial voltage waveforms are shown in Fig. 2,3 and 4.
Be the voltage waveform of switching impulse test test product valve V1 among Fig. 2, the voltage of test product valve V1 reaches peak value 550KV constantly at 300us under switching impulse test; Fig. 3 is the voltage waveform of lightning impulse test test product valve V1, and the voltage of test product valve V1 reaches peak value 780KV constantly at 300us under lightning impulse test; Fig. 4 is the voltage waveform of steep wave impulse test test product valve V1, and the voltage of test product valve V1 reaches peak value 800KV constantly at 50us under the steep wave impulse test.
The utility model provide test unit simple, novel succinct, the enforcement that is easy to test, the test demand that can adapt to 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 of test unit has taken into full account the safeguard measure under the failure condition, the reliability height of device; Utilize the power frequency testing transformer in the ac voltage withstanding device that test product valve is carried out complementary energy simultaneously, reduced insulating requirements, saved manufacturing cost first switch S 1 and second switch S2.
Should be noted that at last: be not intended to limit in conjunction with the foregoing description explanation the technical solution of the utility model.Those of ordinary skill in the field are to be understood that: those skilled in the art can make amendment or are equal to replacement embodiment of the present utility model, but these modifications or change are all among the claim protection domain that application is awaited the reply.
Claims (2)
1. DC converter valve impulse voltage test device, it is characterized in that: described test unit comprises percussion mechanism D, protective resistance R3, switch, power frequency testing transformer T1 and test product valve V1; Described switch comprises 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 first switch S 1 is connected with test product valve V1 negative electrode after being connected between percussion mechanism D and the protective resistance R3; Described second switch S2 connects in test product valve V1 anode after being connected between protective resistance R3 and the test product valve V1; Described power frequency testing transformer T1 two ends are connected with test product valve V1 anode with ground respectively; Described percussion mechanism D comprises batching sphere crack (1), body capacitor C 1, wave rear resistance R 1 and wave front resistance R2; Described batching sphere crack (1) and wave front resistance R2 series connection; Described 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 DC converter valve impulse voltage test device 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 |
|---|---|---|---|
| CN2010206455544U CN201892723U (en) | 2010-12-01 | 2010-12-01 | Impulse-voltage test device for direct-current converting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206455544U CN201892723U (en) | 2010-12-01 | 2010-12-01 | Impulse-voltage test device for direct-current converting valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201892723U true CN201892723U (en) | 2011-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206455544U Expired - Lifetime CN201892723U (en) | 2010-12-01 | 2010-12-01 | Impulse-voltage test device for direct-current converting valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201892723U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106707127A (en) * | 2017-03-10 | 2017-05-24 | 云南电网有限责任公司电力科学研究院 | Industrial frequency impact synthesis test loop for testing thyristor level reverse restoration characteristics |
| CN109085483A (en) * | 2018-06-22 | 2018-12-25 | 国网四川省电力公司电力科学研究院 | A kind of high frequency attenuation oscillatory surge voltage generation circuit |
-
2010
- 2010-12-01 CN CN2010206455544U patent/CN201892723U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106707127A (en) * | 2017-03-10 | 2017-05-24 | 云南电网有限责任公司电力科学研究院 | Industrial frequency impact synthesis test loop for testing thyristor level reverse restoration characteristics |
| CN109085483A (en) * | 2018-06-22 | 2018-12-25 | 国网四川省电力公司电力科学研究院 | A kind of high frequency attenuation oscillatory surge voltage generation circuit |
| CN109085483B (en) * | 2018-06-22 | 2020-06-26 | 国网四川省电力公司电力科学研究院 | High-frequency attenuation oscillation impulse voltage generating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA ELECTRIC POWER RESEARCH INSTITUTE Effective date: 20140321 Owner name: STATE GRID CORPORATION OF CHINA Free format text: FORMER OWNER: CHINA ELECTRIC POWER RESEARCH INSTITUTE Effective date: 20140321 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100192 HAIDIAN, BEIJING TO: 100031 XICHENG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140321 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: China Electric Power Research Institute Address before: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Patentee before: China Electric Power Research Institute |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110706 |
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| CX01 | Expiry of patent term |