CN201993437U - Aperiodic trigger test device of direct current (DC) converter valve based on resistance-capacitance device - Google Patents
Aperiodic trigger test device of direct current (DC) converter valve based on resistance-capacitance device Download PDFInfo
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- CN201993437U CN201993437U CN201020645553XU CN201020645553U CN201993437U CN 201993437 U CN201993437 U CN 201993437U CN 201020645553X U CN201020645553X U CN 201020645553XU CN 201020645553 U CN201020645553 U CN 201020645553U CN 201993437 U CN201993437 U CN 201993437U
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- 238000012360 testing method Methods 0.000 title claims abstract description 98
- 230000001681 protective effect Effects 0.000 claims abstract description 23
- 239000003990 capacitor Substances 0.000 claims abstract description 14
- 230000000737 periodic effect Effects 0.000 claims description 22
- 230000007246 mechanism Effects 0.000 claims description 13
- 238000009527 percussion Methods 0.000 claims description 13
- 230000000694 effects Effects 0.000 abstract description 6
- 230000003116 impacting effect Effects 0.000 abstract description 3
- 230000000295 complement effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009413 insulation Methods 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
- 230000005611 electricity Effects 0.000 description 1
- 238000004519 manufacturing process 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
- 230000001960 triggered effect Effects 0.000 description 1
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Abstract
The utility model provides an aperiodic trigger test device of a direct current (DC) converter valve based on a resistance-capacitance device. The device comprises an impacting device, a wave modulating inductor, a protective resistor, a first switch, a second switch, a first power frequency test transformer, a second power frequency test transformer, the resistance-capacitance device, a test sample valve and an auxiliary valve, wherein, the resistance-capacitance device, the protective resistor and the test sample valve are sequentially connected in parallel; the impacting device and the protective resistor are connected between the wave modulating inductor; the first switch is connected between the resistance-capacitance device and the protective resistor and then connected with the cathode of the test sample valve; the second switch is connected between the protective resistor and the test sample valve and then connected with the anode of the test sample valve and the cathode of the auxiliary valve; the first power frequency test transformer is connected with the ground and the anode of the test sample valve respectively; and the second power frequency test transformer is connected with the auxiliary valve to form a loop and then effectively grounded. The resistance-capacitance device provided by the utility model is simple, performs comprehensive functions, and simultaneously achieves the effect of current limitation and energy complementation; and a capacitor and the resistor are connected and combined in series or in parallel according to different voltage levels.
Description
Technical field
The utility model relates to the DC converter valve action test set of field of power electronics, and the DC converter valve that specifically relates to based on the capacitance-resistance device triggers 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 that 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.Can take shnt capacitor method and two kinds of methods of lightning arrester connected in parallel method to realize according to standard-required triggering non-periodic test.
And it is not enough to trigger the test unit applicability the conventional non-periodic that is used for capacitor method non-periodic, the capacitance-resistance device that must more renew at any time the different engineerings of different electric pressures even identical electric pressure, caused the capacitance-resistance device buying of a lot of repeatability, be difficult to satisfy the multi-voltage grade DC converter valve and trigger the needs of test non-periodic, and can't reach the effect of current limliting and complementary energy simultaneously.The DC converter valve based on the capacitance-resistance device of present patent application triggers in the test unit non-periodic, the capacitance-resistance device can carry out the series and parallel combination to electric capacity and resistance according to different electric pressures, and can play current limliting and complementary energy effect simultaneously, install the widely applicable needs that satisfy conventional direct current and extra-high voltage direct-current transmission engineering.
The utility model content
The purpose of this utility model is, provide a kind of DC converter valve based on the capacitance-resistance device of shnt capacitor method that adopts to trigger test unit non-periodic, this installs simple but complete function, can play current limliting and complementary energy effect simultaneously, and can carry out the series and parallel combination to electric capacity and resistance according to different electric pressures, satisfy the requirement that different electric pressures trigger trial voltage, electric current required non-periodic, flexible.
For realizing the purpose of this utility model, the DC converter valve based on the capacitance-resistance device that the utility model provides triggers test unit and comprise percussion mechanism D, harmonic inductance L, protective resistance R3, switch, power frequency testing transformer, test product valve V1 and auxiliary valve V2 non-periodic, and its improvements are: this device comprises the capacitance-resistance device; Described switch comprises 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 capacitance-resistance device, protective resistance R3 and test product valve V1 are in parallel successively; Described percussion mechanism D and protective resistance R3 are connected between the harmonic inductance L; After being connected between capacitance-resistance device and the protective resistance R3, described 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, described second switch S2 is connected with auxiliary valve V2 negative electrode with test product valve V1 anode again; The described first power frequency testing transformer T1 is connected with test product valve V1 anode with ground respectively; Described second power frequency testing transformer T2 and auxiliary valve V2 connect to form behind the loop and effective grounding; Described percussion mechanism D, capacitance-resistance device and the equal effective grounding of protective resistance R3.
The 4th preferred DC converter valve based on the capacitance-resistance device that the utility model provides triggers in the test unit technical scheme non-periodic: described percussion mechanism D comprises wave rear resistance R 1, wave front resistance R2, body capacitor C 1 and batching sphere crack 1, described 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.
Compared with prior art, the beneficial effects of the utility model are:
1, adopt capacitance-resistance device in parallel electric current to the valve conversion when valve two ends reproduction valve is opened, satisfying when triggering test non-periodic thyristor and auxiliary circuit thereof has enough electric currents.
2, the capacitance-resistance device plays current limliting and complementary energy effect, simple in structure, complete function;
3, according to different electric pressures electric capacity and resistance are carried out the series and parallel combination, satisfy the requirement that different electric pressures trigger trial voltage, electric current required non-periodic, flexible.
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.
5, 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 the false triggering signal whether occurs and produce wrong repayment signal, therefore can save great amount of cost and time.
6, utilize the power frequency testing transformer in the single valve ac voltage withstanding device that test product valve is carried out complementary energy, saved manufacturing cost.
Description of drawings
Fig. 1 triggers the test unit schematic diagram non-periodic based on the DC converter valve of capacitance-resistance device;
Fig. 2 test current oscillogram.
Embodiment
The DC converter valve that Fig. 1 is based on the capacitance-resistance device triggers the test unit schematic diagram non-periodic, this device comprises percussion mechanism D, harmonic inductance L, capacitance-resistance device, protective resistance R3, switch, power frequency testing transformer, test product valve V1 and auxiliary valve V2, the capacitance-resistance device is made of the capacitor C and the noninductive resistance R of series connection, capacitor C is combined by the electric capacity series and parallel, noninductive resistance R is combined by the noninductive resistance series and parallel, switch comprises first switch S 1 and second switch S2, and power frequency testing transformer comprises the first power frequency testing transformer T1 and the second power frequency testing transformer T2; The capacitance-resistance device, protective resistance R3 and test product valve V1 are in parallel successively, percussion mechanism D and protective resistance R3 are connected between the harmonic inductance L, after being connected between capacitance-resistance device 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 with ground respectively, the second power frequency testing transformer T2 and auxiliary valve V2 connect to form behind the loop and effective grounding, percussion mechanism D, capacitance-resistance device and the equal effective grounding of protective resistance R3; 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, and 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 finished, closed first switch S 1 and second switch S2, V1 applies impact to test product valve; Wave front resistance R2 and wave rear resistance R 1 and the harmonic inductance L of percussion mechanism D 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 respectively; Test product valve V1 is in impact peak value place triggering and conducting, energy on capacitor C, the noninductive resistance R is immediately to test product valve V1 switching current, 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 should test power frequency the positive half-wave of transformer two ends power-frequency voltage constantly.
Test product valve V1 and auxiliary valve V2 junction are earth potential, and in the anti-electromagnetic interference test that takes into account test product valve, impulse overvoltage can not be applied on the auxiliary valve V2, are not damaged to guarantee auxiliary valve V2; And if during the disturbed conducting of 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 is used for bearing AC power frequency voltage before the test, utilizes the test product valve terminal voltage to charge to guarantee the thyristor electronic circuit.In the operating impulse voltage peak value moment, test product valve V1 is by the triggered as normal conducting, and Fig. 2 is the current waveform figure of test product valve capacitor C output after impact peak value conducting constantly.Electric current is about 20-30 μ s from zero to time to peak, carves from the outset through decaying to the zero-time behind the peak value again to be about 60-70 μ s, and this electric current has flow through current-limiting resistance R equally.
The capacitance-resistance device that the utility model provides adopts the version of electric capacity tower, is composed in series by electric capacity and noninductive resistance, can play current limliting and complementary energy effect simultaneously, simple in structure, complete function; Connection in series-parallel by electric capacity can obtain the capacitance under the different voltages, and the connection in series-parallel by resistance can obtain the different resistances under the different voltages equally, satisfies the requirement that different electric pressures trigger trial voltage, electric current required non-periodic, and is flexible.
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. the DC converter valve based on the capacitance-resistance device triggers test unit non-periodic, described device comprises percussion mechanism D, harmonic inductance L, protective resistance R3, switch, power frequency testing transformer, test product valve V1 and auxiliary valve V2, it is characterized in that: this device comprises the capacitance-resistance device; Described switch comprises 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 capacitance-resistance device, protective resistance R3 and test product valve V1 are in parallel successively; Described percussion mechanism D and protective resistance R3 are connected between the harmonic inductance L; After being connected between capacitance-resistance device and the protective resistance R3, described 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, described second switch S2 is connected with auxiliary valve V2 negative electrode with test product valve V1 anode again; The described first power frequency testing transformer T1 is connected with test product valve V1 anode with ground respectively; Described second power frequency testing transformer T2 and auxiliary valve V2 connect to form behind the loop and effective grounding; Described percussion mechanism D, capacitance-resistance device and the equal effective grounding of protective resistance R3.
2. the DC converter valve based on the capacitance-resistance device as claimed in claim 1 triggers test unit non-periodic, it is characterized in that: described percussion mechanism D comprises wave rear resistance R 1, wave front resistance R2, body capacitor C 1 and batching sphere crack (1), described 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 of batching sphere crack (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020645553XU CN201993437U (en) | 2010-12-01 | 2010-12-01 | Aperiodic trigger test device of direct current (DC) converter valve based on resistance-capacitance device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020645553XU CN201993437U (en) | 2010-12-01 | 2010-12-01 | Aperiodic trigger test device of direct current (DC) converter valve based on resistance-capacitance device |
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| Publication Number | Publication Date |
|---|---|
| CN201993437U true CN201993437U (en) | 2011-09-28 |
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| CN201020645553XU Expired - Lifetime CN201993437U (en) | 2010-12-01 | 2010-12-01 | Aperiodic trigger test device of direct current (DC) converter valve based on resistance-capacitance device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104237758A (en) * | 2014-10-13 | 2014-12-24 | 国家电网公司 | Method for testing impulse withstand voltages of ultrahigh-voltage converter transformers on basis of scale models |
| CN106646172A (en) * | 2016-12-02 | 2017-05-10 | 国网四川省电力公司电力科学研究院 | Test circuit for generating direct-current superimposed impulse voltage |
-
2010
- 2010-12-01 CN CN201020645553XU patent/CN201993437U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104237758A (en) * | 2014-10-13 | 2014-12-24 | 国家电网公司 | Method for testing impulse withstand voltages of ultrahigh-voltage converter transformers on basis of scale models |
| CN104237758B (en) * | 2014-10-13 | 2016-12-07 | 国家电网公司 | A kind of UHV impulse voltage endurance test method based on scale model |
| CN106646172A (en) * | 2016-12-02 | 2017-05-10 | 国网四川省电力公司电力科学研究院 | Test circuit for generating direct-current superimposed impulse voltage |
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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: STATE GRID CORPORATION OF CHINA Free format text: FORMER OWNER: CHINA ELECTRIC POWER RESEARCH INSTITUTE Effective date: 20140326 Owner name: CHINA ELECTRIC POWER RESEARCH INSTITUTE Effective date: 20140326 |
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| 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 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20140326 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 |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110928 |