CN102486498A - Composite test apparatus of high-voltage direct current transmission converter valve - Google Patents
Composite test apparatus of high-voltage direct current transmission converter valve Download PDFInfo
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- CN102486498A CN102486498A CN201010576649XA CN201010576649A CN102486498A CN 102486498 A CN102486498 A CN 102486498A CN 201010576649X A CN201010576649X A CN 201010576649XA CN 201010576649 A CN201010576649 A CN 201010576649A CN 102486498 A CN102486498 A CN 102486498A
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Abstract
The invention relates to a composite test apparatus of a high-voltage direct current transmission converter valve. The composite test apparatus comprises a test valve Vt, a high voltage source (1), a high voltage source (2) and a direct current high current source. An auxiliary valve V5 in the direct current high current source is in series connected with the test valve Vt, so that a bridge arm of a 6 pulse bridge rectifier B6 in the direct current high current source is formed. The high voltage source (1), the high voltage source (2) and the test valve Vt are in parallel connection. The test valve Vt is in ground connection. And heavy currents of the direct current high current source are between 3000A to 5000A. According to the provided composite test apparatus in the invention, two independent high voltage sources are used for providing reverse high voltages and forward high voltages for a test valve during a blockout period, so that unsymmetrical blocking voltages are obtained; therefore, a voltage exerted on the test valve approaches one that is exerted on the test valve in an actual operation condition and thus test equivalence is good. Moreover, according to the apparatus, a control sequence is changed, so that several kinds of voltage combination can be realized; and thus, there are several selection choices on a test scheme with a flexible mode; and the application range of the apparatus is wide.
Description
Technical field
The present invention relates to a kind of direct-current transmission converter valve test unit, specifically relate to a kind of high voltage direct current transmission converter valve synthetic test device.
Background technology
Increase along with the power semiconductor device capacity; The high voltage dc transmission technology that is the basis with the high-pressure series semiconductor device art is developed rapidly; Large-scale application worldwide; And brought into play the good technical advantage aspect interconnected at long distance power transmission and large scale electric network, obtained good economic benefit.DC converter valve is the key equipment of DC transmission system, and along with the raising of direct-current transmission voltage, transmission capacity, the reliable importance of DC converter valve is more outstanding.For improving and ensure the designing quality of DC converter valve, guarantee DC converter valve safety, true(-)running under various stable states, transient state service condition, it is a kind of essential means that converter valve is made an experiment.Because modern direct-current transmission converter valve has WV height, big, the capacious characteristics of electric current; Be difficult in to make up in the experimental enviroment and make an experiment with the identical full live road of actual operating mode; Be limited to providing of test capacity, generally adopt at present the method for synthetic test to carry out the running test of DC converter valve.Compound experiment adopts two cover power-supply systems to act on the converter valve test product, is respectively D.C. high-current source and high voltage source.The D.C. high-current source provides running current; High voltage source provides high-voltage strength; During test the voltage of the electric current of D.C. high-current source output and high voltage source output alternately put on according to power frequency and tried on the converter valve, electric current, voltage, the thermal stress of in actual motion, being born with equivalent test product.Though the complicacy that this has increased circuit control to a certain extent can reduce the experiment power supply capacity greatly, reduces investment outlay.But; Synthetic its high voltage source of hookup of existing in the world several covers is formed by oscillation circuit; Its distinguishing feature is that the high voltage that is provided is positive and negative symmetry; And forward and reverse voltage that converter valve is born in actual motion is not positive and negative symmetry, though test can be satisfied the common engineering requirement, but its equivalence is desirable not to the utmost.
Summary of the invention
The object of the present invention is to provide a kind of high voltage direct current transmission converter valve synthetic test device, institute's pressure that bears is near consistent in this device test product valve pressure in test and the actual operating mode.
For realizing above-mentioned purpose, the present invention adopts following proposal:
A kind of high voltage direct current transmission converter valve synthetic test device, its improvements are: said device comprises test product valve Vt, high voltage source 1, high voltage source 2 and D.C. high-current source; Auxiliary valve V5 series connection test product valve Vt in the said D.C. high-current source forms the brachium pontis of 6 fluctuation bridge rectifier B6 in the D.C. high-current source; Said high voltage source 1, high voltage source 2 and test product valve Vt parallel connection; Said test product valve Vt ground connection; The big electric current in said D.C. high-current source is between 3000A-5000A.
A kind of optimized technical scheme provided by the invention is: said high voltage source 1 comprises DC current source T1, auxiliary valve VS1, V1 and V2, capacitor C 1 and C2, inductance L 1, L2 and L3; The anodal anode that connects auxiliary valve VS1 of said DC current source T1; Said auxiliary valve VS1, inductance L 1, auxiliary valve V1, inductance L 2, inductance L 3 and auxiliary valve V2 connect successively; Said DC current source T1, capacitor C 1 and capacitor C 2 be parallel connection successively; Said capacitor C 1 is connected between auxiliary valve VS1 and the inductance L 1; Said capacitor C 2 is connected between inductance L 2 and the inductance L 3; Said high voltage source 2 comprises DC current source T2, auxiliary valve VS2, V3 and V4, capacitor C 3 and C4, inductance L 4, L5 and L6; The anodal anode that connects auxiliary valve VS2 of said DC current source T2; Said auxiliary valve VS2, inductance L 4, auxiliary valve V3, inductance L 5, inductance L 6 and auxiliary valve V4 connect successively; Said DC current source T2, capacitor C 3 and capacitor C 4 be parallel connection successively; Said capacitor C 3 is connected between auxiliary valve VS2 and the inductance L 4; Said capacitor C 4 is connected between inductance L 5 and the inductance L 6; Said high voltage source 1 and high voltage source 2 ground connection.
Second kind of optimized technical scheme provided by the invention is: said auxiliary valve V1 and auxiliary valve V2 form by antiparallel forward auxiliary valve and reverse auxiliary valve.
The third optimized technical scheme provided by the invention is: said D.C. high-current source comprises strong current transformer T, 6 fluctuation bridge rectifier B6, auxiliary valve V5, inductance L, current limiting reactor, disconnector one, disconnector two, isolating switch and 10KV bus; Said strong current transformer T, current limiting reactor, disconnector one, isolating switch, disconnector two and 10KV bus are connected successively; Said strong current transformer T connects with auxiliary valve V5 through 6 fluctuation bridge rectifier B6; Said 6 fluctuation bridge rectifier B6 export to inductance L; Said inductance L and 6 fluctuation bridge rectifier B6 ground connection.
Compared with prior art, beneficial effect of the present invention is:
1, high voltage direct current converter valve synthetic test device provided by the invention; Through two independently high voltage source be divided into for test product valve the forward and reverse high pressure during the blocking-up be provided; To obtain asymmetric blocking voltage, make voltage that test product valve bore more near actual operating mode, test effect is better.
2, high voltage direct current converter valve synthetic test device provided by the invention; Through changing control timing, realize the multiple voltage combination, select array mode flexibly according to different tests project and test product design feature; The testing program choice is big, mode is flexible, applied widely.
Description of drawings
Fig. 1 is a high voltage direct current converter valve synthetic test manipulated or operated apparatus;
Fig. 2 is voltage, the current waveform of test product valve under two injection way;
Fig. 3 is voltage, the current waveform of test product valve under three injection way;
Wherein: Vt-test product valve, VS1, VS2, V1, V2, V3, V4 and V5-auxiliary valve, L1, L2, L3, L4, L5, L6-inductance, C1, C2, C3 and C4-electric capacity, B6-6 fluctuation bridge rectifier.
Embodiment
Below in conjunction with accompanying drawing the present invention is done further detailed description.
Fig. 1 high voltage direct current transmission converter valve synthetic test manipulated or operated apparatus, this device comprises test product valve Vt, high voltage source 1, high voltage source 2 and D.C. high-current source; Auxiliary valve V5 series connection test product valve Vt in the D.C. high-current source forms the brachium pontis of 6 fluctuation bridge rectifier B6 in the D.C. high-current source; High voltage source 1, high voltage source 2 and test product valve Vt parallel connection; Test product valve Vt ground connection.
The D.C. high-current source comprises strong current transformer T, 6 fluctuation bridge rectifier B6, auxiliary valve V5, inductance L, current limiting reactor, disconnector one, disconnector two, isolating switch and 10KV bus; Strong current transformer T, current limiting reactor, disconnector one, isolating switch, disconnector two and 10KV bus are connected successively; Strong current transformer T connects with auxiliary valve V5 through 6 fluctuation bridge rectifier B6; 6 fluctuation bridge rectifier B6 export to inductance L; Inductance L and 6 fluctuation bridge rectifier B6 ground connection; The big electric current in D.C. high-current source depends on the rated current of test product valve Vt between 3000A-5000A.
In test, DC current source T1 cooperates through the triggering logical sequence of auxiliary valve VS1, V1 and V2, under the vibration of the different oscillation circuits that C1, C2, L1, L2 and L3 form cooperates, produces high voltage; T2 cooperates through the triggering logical sequence of auxiliary valve VS2, V3 and V4 in the high voltage source 2, under the vibration of the different oscillation circuits that C3, C4, L4, L5 and L6 form cooperates, produces high voltage; Two high voltage sources provide the forward and reverse high pressure during the blocking-up for test product valve Vt.
The 6 fluctuation bridge rectifier B6 that insert the 10kV system and auxiliary valve V5 cooperate the DC current whole test circuit that test product valve Vt conduction period is provided to pass through the cooperation of a D.C. high-current source and two high voltage sources, can satisfy the testing requirements of direct-current transmission converter valve.
In the high voltage direct current transmission converter valve synthetic test, basic functional principle of the present invention under two injection mode of operations:
Fig. 2 is voltage, current cycle (20ms) waveform of test product valve under the two injection way of synthetic test method.
T0 test product valve Vt constantly bears the forward high pressure that high voltage source 1 circuit produces;
T1 opens test product valve Vt and auxiliary valve V2 constantly, the test product valve Vt that flows through of the resonance current in the high voltage source 1;
T2 introduces the DC current in the D.C. high-current source constantly, and test product valve Vt bears the DC current of conduction period;
T3 opens auxiliary valve V4 before constantly DC current extinguishes, the resonance current test product valve Vt that flows through in the high voltage source 2;
Resonance current extinguishes in the t4 moment high voltage source 2, triggers the high back voltage that bears voltage source 2 after auxiliary valve V4 makes test product valve Vt turn-off;
It is high voltage source 2 chargings that t5 controls charge circuit T2, VS2, C3 constantly;
It is high voltage source 1 charging that t6 controls charge circuit T1, VS1, C1 constantly, triggers auxiliary valve V2 with broad pulse, makes that test product valve Vt bore the forward high pressure of high voltage source 1 when charging finished, and hookup was prepared for the next test period.
Embodiment 2
In the high voltage direct current transmission converter valve synthetic test, the basic functional principle of circuit of the present invention under three injection mode of operations:
Fig. 3 is voltage, current cycle (20ms) waveform of test product valve under synthetic test method three injection way.
T0 moment test product valve Vt bears the forward high pressure of high voltage source 1;
T1 opens test product valve Vt and auxiliary valve V2 constantly, the test product valve Vt that flows through of the resonance current in the high voltage source 1;
T2 introduces the DC current in the D.C. high-current source 1 constantly, and test product valve Vt bears the DC current of conduction period;
It is high voltage source 1 charging that t3 controls charge circuit T1, VS1, C1 constantly, makes its voltage return to t0 voltage levvl constantly;
T4 opens auxiliary valve V4 before constantly DC current extinguishes, the resonance current test product valve Vt that flows through in the high voltage source 2;
Resonance current extinguishes in the t5 moment high voltage source 2, triggers the high back voltage that bears high voltage source 2 after auxiliary valve V4 makes test product valve Vt turn-off;
It is high voltage source 2 chargings that t6 controls charge circuit T2, VS2, C2 constantly, imposes wide trigger pulse for simultaneously auxiliary valve V4;
It is that high voltage source 2 chargings finish that t7 controls charge circuit T2, VS2, C2 constantly, and test product valve Vt bears its forward high pressure;
T8 opens test product valve Vt and auxiliary valve V4 constantly, the test product valve of flowing through once more of the resonance current in the high voltage source 2;
T9 is the resonance current zero passage constantly, opens auxiliary valve V2, and test product valve Vt will bear reverse voltage;
In the t10 moment, control charge circuit T1, VS1, C1 are high voltage source 1 charging, and hookup got into the next work period after charging finished.
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. high voltage direct current transmission converter valve synthetic test device, it is characterized in that: said device comprises test product valve Vt, high voltage source (1), high voltage source (2) and D.C. high-current source; Auxiliary valve V5 series connection test product valve Vt in the said D.C. high-current source forms the brachium pontis of 6 fluctuation bridge rectifier B6 in the D.C. high-current source; Said high voltage source (1), high voltage source (2) and test product valve Vt parallel connection; Said test product valve Vt ground connection; The big electric current in said D.C. high-current source is between 3000A-5000A.
2. a kind of high voltage direct current transmission converter valve synthetic test device as claimed in claim 1, it is characterized in that: said high voltage source (1) comprises DC current source T1, auxiliary valve VS1, V1 and V2, capacitor C 1 and C2, inductance L 1, L2 and L3; The anodal anode that connects auxiliary valve VS1 of said DC current source T1; Said auxiliary valve VS1, inductance L 1, auxiliary valve V1, inductance L 2, inductance L 3 and auxiliary valve V2 connect successively; Said DC current source T1, capacitor C 1 and capacitor C 2 be parallel connection successively; Said capacitor C 1 is connected between auxiliary valve VS1 and the inductance L 1; Said capacitor C 2 is connected between inductance L 2 and the inductance L 3; Said high voltage source (2) comprises DC current source T2, auxiliary valve VS2, V3 and V4, capacitor C 3 and C4, inductance L 4, L5 and L6; The anodal anode that connects auxiliary valve VS2 of said DC current source T2; Said auxiliary valve VS2, inductance L 4, auxiliary valve V3, inductance L 5, inductance L 6 and auxiliary valve V4 connect successively; Said DC current source T2, capacitor C 3 and capacitor C 4 be parallel connection successively; Said capacitor C 3 is connected between auxiliary valve VS2 and the inductance L 4; Said capacitor C 4 is connected between inductance L 5 and the inductance L 6; Said high voltage source (1) and high voltage source (2) ground connection.
3. a kind of high voltage direct current transmission converter valve synthetic test device as claimed in claim 1 is characterized in that: said auxiliary valve V1 and auxiliary valve V2 form by antiparallel forward auxiliary valve and reverse auxiliary valve.
4. a kind of high voltage direct current transmission converter valve synthetic test device as claimed in claim 1 is characterized in that: said D.C. high-current source comprises strong current transformer T, 6 fluctuation bridge rectifier B6, auxiliary valve V5, inductance L, current limiting reactor, disconnector one, disconnector two, isolating switch and 10KV bus; Said strong current transformer T, current limiting reactor, disconnector one, isolating switch, disconnector two and 10KV bus are connected successively; Said strong current transformer T connects with auxiliary valve V5 through 6 fluctuation bridge rectifier B6; Said 6 fluctuation bridge rectifier B6 export to inductance L; Said inductance L and 6 fluctuation bridge rectifier B6 ground connection.
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| CN201010576649.XA CN102486498B (en) | 2010-12-01 | 2010-12-01 | Composite test apparatus of high-voltage direct current transmission converter valve |
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Cited By (7)
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| CN103353562A (en) * | 2013-06-25 | 2013-10-16 | 许继集团有限公司 | High-voltage direct-current power transmission commutation transient low-voltage test method and circuit thereof |
| CN105511293A (en) * | 2014-09-22 | 2016-04-20 | 国家电网公司 | Converter valve simulation platform and realization method thereof |
| CN107210737A (en) * | 2015-02-16 | 2017-09-26 | 爱信艾达株式会社 | Switch element driver circuit |
| CN107942241A (en) * | 2017-10-20 | 2018-04-20 | 许继电气股份有限公司 | A kind of hookup for high voltage DC breaker submodule |
| CN110784178A (en) * | 2019-10-28 | 2020-02-11 | 东南大学 | Broadband injection locking frequency multiplier |
| CN112230133A (en) * | 2020-08-26 | 2021-01-15 | 中国科学院电工研究所 | Test circuit, system, method and device for current source type active phase change converter valve |
| CN113189424A (en) * | 2021-04-26 | 2021-07-30 | 中国南方电网有限责任公司超高压输电公司天生桥局 | Series resonance flexible direct current converter valve operation test topology and control method |
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| CN101726640A (en) * | 2009-12-23 | 2010-06-09 | 中国电力科学研究院 | Control and protection system of converter valve operating test device |
| CN201926741U (en) * | 2010-12-01 | 2011-08-10 | 中国电力科学研究院 | Synthetic test device for DC power transmission converter valve |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353562B (en) * | 2013-06-25 | 2016-05-18 | 许继电气股份有限公司 | A kind of high-voltage DC transmission conversion transient low-voltage test method and circuit thereof |
| CN103353562A (en) * | 2013-06-25 | 2013-10-16 | 许继集团有限公司 | High-voltage direct-current power transmission commutation transient low-voltage test method and circuit thereof |
| CN105511293A (en) * | 2014-09-22 | 2016-04-20 | 国家电网公司 | Converter valve simulation platform and realization method thereof |
| CN105511293B (en) * | 2014-09-22 | 2018-08-14 | 国家电网公司 | A kind of converter valve emulation platform and its implementation |
| CN107210737B (en) * | 2015-02-16 | 2020-07-31 | 爱信艾达株式会社 | Switching element drive circuit |
| CN107210737A (en) * | 2015-02-16 | 2017-09-26 | 爱信艾达株式会社 | Switch element driver circuit |
| CN107942241B (en) * | 2017-10-20 | 2021-02-09 | 许继电气股份有限公司 | Test circuit for high-voltage direct-current breaker submodule |
| CN107942241A (en) * | 2017-10-20 | 2018-04-20 | 许继电气股份有限公司 | A kind of hookup for high voltage DC breaker submodule |
| CN110784178A (en) * | 2019-10-28 | 2020-02-11 | 东南大学 | Broadband injection locking frequency multiplier |
| CN110784178B (en) * | 2019-10-28 | 2021-05-11 | 东南大学 | Broadband injection locking frequency multiplier |
| CN112230133A (en) * | 2020-08-26 | 2021-01-15 | 中国科学院电工研究所 | Test circuit, system, method and device for current source type active phase change converter valve |
| CN112230133B (en) * | 2020-08-26 | 2024-04-05 | 中国科学院电工研究所 | Test circuit, system, method and device of current source type active commutation valve |
| CN113189424A (en) * | 2021-04-26 | 2021-07-30 | 中国南方电网有限责任公司超高压输电公司天生桥局 | Series resonance flexible direct current converter valve operation test topology and control method |
| CN113189424B (en) * | 2021-04-26 | 2022-09-06 | 中国南方电网有限责任公司超高压输电公司天生桥局 | Series resonance flexible direct current converter valve operation test topology and control method |
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