CN201075122Y - Off-cycle triggering tester of high voltage DC transmission converter valve - Google Patents
Off-cycle triggering tester of high voltage DC transmission converter valve Download PDFInfo
- Publication number
- CN201075122Y CN201075122Y CNU2007201728613U CN200720172861U CN201075122Y CN 201075122 Y CN201075122 Y CN 201075122Y CN U2007201728613 U CNU2007201728613 U CN U2007201728613U CN 200720172861 U CN200720172861 U CN 200720172861U CN 201075122 Y CN201075122 Y CN 201075122Y
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- valve
- reactor
- testing transformer
- test
- direct current
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Abstract
The utility model discloses a high voltage DC transmission converting valve non-period triggering test device, comprising an impact generator, a commutation reactor (L1), a valve arrester, a sample valve (V1), an auxiliary valve (V2), a protection reactor (L2) and a testing transformer; the output terminal of the impact generator is connected with the output terminals of the commutation reactor (L1) and the commutation reactor (L1) and connected with the valve arrester and the sample valve (V1); the anode of the sample valve (V1) is grounded and the cathode thereof is connected with the anode of the auxiliary valve (V2); the cathode of the auxiliary valve (V2) is connected with the protection reactor (L2); the output terminal of the protection reactor (L2) is connected with the testing transformer. The utility model can meet the energy obtaining requirement of different converting valves which are designed by different DC converting valves suppliers, and can use the testing transformer and the protection reactor together with the AC/DC voltage resistance device, thus saving cost.
Description
Technical field
The utility model belongs to the measurement technical field of measurement and test, relates in particular to a kind of DC converter valve action test set.
Background technology
The direct current transportation technology is because its technical and economy obtains over nearly 30 years widely applying at home, 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 valve was opened under the high voltage situation of regulation.Trigger the anti-electromagnetic interference test that test can take into account valve non-periodic.
High voltage direct current transmission converter valve triggers the test product valve of test unit non-periodic must get energy before test, the general impact circuit that adopts realizes that getting of test product valve can in the prior art at present, promptly establish in addition a cover surge generator to test product valve impact get can, test unit comprises two altogether and overlaps surge generators like this.The converter valve of different DC converter valve supplier designs is got energy demand difference, the requirement of getting the energy mode also is not quite similar, impact circuit can satisfy to the little converter valve of energy requirement get the energy requirement, but can not satisfy the big converter valve of energy requirement got the energy requirement.
The utility model content
The technical problems to be solved in the utility model provide a kind of simple in structure, cost is low, can satisfy different DC converter valve supplier designs different converter valve get can demand high voltage direct current transmission converter valve trigger test unit non-periodic.
For solving the problems of the technologies described above, the utility model is made up of surge generator, commutating reactor, valve arrester, test product valve, auxiliary valve, protection reactor and testing transformer.The leading-out terminal of surge generator connects commutating reactor, the leading-out terminal of commutating reactor valve arrester in parallel and test product valve.The test product valve plus earth, negative electrode links to each other with the anode of auxiliary valve, and the negative electrode of auxiliary valve connects protection reactor, and the leading-out terminal of protection reactor is connected with testing transformer.Surge generator applies negative polarity and impacts, and can reduce the probability of discharge over the ground.Test product valve and auxiliary valve are powered by testing transformer, adopt the mode of getting energy that exchanges.Interchange get can be able to satisfy can requirement to getting of the little converter valve of energy requirement, can satisfy again can requirement to getting of the big converter valve of energy requirement.The utility model takes to exchange that get can mode, can save a cover percussion mechanism, and have suitable test product valve scope extensively, be not subjected to test product valve get can the capacitance size restriction advantage.Protection reactor limits loop current under failure condition, make it to remain within the testing transformer rated current scope.
For guaranteeing that test product valve triggering moment auxiliary valve is in the forward bias state, the operating impulse voltage that applies carries out sequential with the voltage of testing transformer and cooperates.Regulate the testing transformer both end voltage to proper level, sequential cooperates and can realize simply.
As a kind of improvement of the present utility model, in circuit, set up a protection lightning arrester in parallel with testing transformer, under all breakdown situation of auxiliary valve and protection reactor, testing transformer is protected.
The utility model utilizes testing transformer that test product valve and auxiliary valve institute energy requirement are provided, and can save a cover percussion mechanism, and have suitable test product valve scope extensively, be not subjected to test product valve get can capacitance size the advantage of restriction; Utilize auxiliary valve as disconnector, when test product valve is applied operating impulse voltage, trial voltage device and test product valve are separated, can save a cover combination switch, and loop structure is simple.Testing transformer and protection reactor that the utility model adopts are the conventional test device, can be shared with the alternating current-direct current pressure-resistant apparatus, can avoid overlapping investment, and save great amount of cost.The utility model can also be taken into account the anti-electromagnetic interference test of valve.
Description of drawings
Fig. 1 is the circuit diagram that the utility model direct-current transmission converter valve triggers test unit non-periodic;
Fig. 2 is the voltage waveform of thyristor in preceding test product valve of test product valve conducting and the valve, and solid line is represented threshold voltage among the figure, and dotted line is represented thyristor voltage;
Fig. 3 is the current waveform of test product valve and lightning arrester after the test product valve conducting, and solid line is represented the valve electric current among the figure, and dotted line is represented the lightning arrester electric current.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
The test loop that DC converter valve triggers test unit non-periodic as shown in Figure 1, test unit comprises surge generator, commutating reactor L
1, valve arrester, test product valve V
1, auxiliary valve V
2, protection reactor L
2And testing transformer.The leading-out terminal of surge generator connects commutating reactor L
1, commutating reactor L
1Leading-out terminal valve arrester in parallel and test product valve V
1Test product valve V
1Plus earth, negative electrode and auxiliary valve V
2Anode link to each other auxiliary valve V
2Negative electrode connect protection reactor L
2, protection reactor L
2Leading-out terminal be connected with testing transformer.
Before triggering test non-periodic, testing transformer is that test product valve exchanges energy supply with auxiliary valve.Regulate the internal impedance of surge generator, make the test product valve two ends produce the operating impulse voltage that peak value is equivalent to the operation ripple protection level of systematic study decision.By the electronic circuit triggering and conducting, the electric current that flows through on the valve arrester is immediately to the test product valve conversion at the impact peak value place for test product valve, and when opening under the high voltage situation of regulation with the test test product valve, thyristor and auxiliary circuit thereof have enough electric currents and voltage withstand capability.
For guaranteeing that test product valve triggering moment auxiliary valve is in the forward bias state, the operating impulse voltage that surge generator applies carries out sequential with the voltage of testing transformer and cooperates.Because the auxiliary valve both end voltage deducts surge voltage by the testing transformer both end voltage and constitutes, so the testing transformer both end voltage is high more, the forward biased time of auxiliary valve is long more; And the testing transformer both end voltage is higher near peak value, therefore regulates testing transformer both end voltage peak value to higher level, and it will be very wide satisfying the forward biased scope of auxiliary valve near the peak value, is beneficial to the realization that sequential cooperates.
At auxiliary valve V
2Under the breakdown failure condition, impulse overvoltage is through protection reactor L
2Be applied to the testing transformer two ends.Protection reactor is used for the limit circuit electric current, makes it in testing transformer rated current scope.Under worst case, auxiliary valve V
2With protection reactor L
2All breakdown, impulse overvoltage acts directly on the testing transformer two ends, therefore will add lightning arrester at the testing transformer two ends in case of necessity.
Test product valve both end voltage waveform as shown in Figure 2, the test before it bear AC power frequency voltage, the thyristor electronic circuit utilizes the valve terminal voltage to charge.In the operating impulse voltage peak value moment, test product valve is by the triggered as normal conducting, and the lightning arrester electric current is transformed on the valve thereupon, and the test product valve current waveform as shown in Figure 3 at this moment.
The utility model adopt a bench teat test transformer realize simultaneously the interchange of test product valve and auxiliary valve get can, can satisfy the energy demand of getting of the different converter valve of different DC converter valve supplier designs, the test product valve scope that is suitable for is wide, is not subjected to test product valve to get the restriction of energy mode.The utility model adopts to exchange gets the energy mode, can save a cover percussion mechanism.The utility model utilizes auxiliary valve as disconnector, can save a cover combination switch, and is simple in structure.The utility model has taken into full account the safeguard measure under the failure condition, thereby the reliability height of device; The utility model also can be taken into account the anti-electromagnetic interference test of valve, when carrying out anti-electromagnetic interference test, and auxiliary valve V
2As subjects, monitor auxiliary valve V
2Triggering and repayment signal, investigate and to trigger test test product valve V non-periodic
1Conducting is to auxiliary valve V
2Electromagnetic interference (EMI) whether cause auxiliary valve V
2False triggering or wrong repayment signal, if do not have, illustrate that then the anti-electromagnetic interference test of valve can be passed through.Therefore, the technical scheme that the utility model device is applied to the anti-electromagnetic interference test of valve falls into protection domain of the present utility model equally.The utility model has especially been developed and has been adopted alternating current-direct current Withstand test device and impact test apparatus to combine to realize that DC converter valve triggers the new mode of test non-periodic; testing transformer of the present utility model and protection reactor can be shared with the alternating current-direct current pressure-resistant apparatus; when saving the testing laboratory space, avoid overlapping investment, further the cost of economy system.
Claims (5)
1. a high voltage direct current transmission converter valve triggers test unit non-periodic, it is characterized in that comprising a surge generator, a commutating reactor (L
1), a valve arrester, a test product valve (V
1), an auxiliary valve (V
2), a protection reactor (L
2) and a testing transformer;
The leading-out terminal of described surge generator connects commutating reactor (L
1), commutating reactor (L
1) leading-out terminal valve arrester in parallel and test product valve (V
1), test product valve (V
1) plus earth, negative electrode and auxiliary valve (V
2) anode link to each other auxiliary valve (V
2) negative electrode connect protection reactor (L
2), protection reactor (L
2) leading-out terminal be connected with testing transformer.
2. high voltage direct current transmission converter valve according to claim 1 triggers test unit non-periodic, it is characterized in that: this device also comprises a protection lightning arrester in parallel with testing transformer.
3. high voltage direct current transmission converter valve according to claim 1 and 2 triggers test unit non-periodic, it is characterized in that: the operating impulse voltage that described surge generator applies carries out sequential with the voltage of testing transformer and cooperates, to guarantee test product valve (V
1) triggering moment auxiliary valve (V
2) be in the forward bias state.
4. high voltage direct current transmission converter valve according to claim 1 and 2 triggers test unit non-periodic, it is characterized in that: described testing transformer adopts the used testing transformer of single valve alternating current-direct current Withstand test device; Described protection reactor adopts the used protection reactor of single valve alternating current-direct current Withstand test device.
5. high voltage direct current transmission converter valve according to claim 4 triggers test unit non-periodic, it is characterized in that: the operating impulse voltage that described surge generator applies carries out sequential with the voltage of testing transformer and cooperates, to guarantee test product valve (V
1) triggering moment auxiliary valve (V
2) be in the forward bias state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201728613U CN201075122Y (en) | 2007-08-30 | 2007-08-30 | Off-cycle triggering tester of high voltage DC transmission converter valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201728613U CN201075122Y (en) | 2007-08-30 | 2007-08-30 | Off-cycle triggering tester of high voltage DC transmission converter valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201075122Y true CN201075122Y (en) | 2008-06-18 |
Family
ID=39520381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201728613U Expired - Lifetime CN201075122Y (en) | 2007-08-30 | 2007-08-30 | Off-cycle triggering tester of high voltage DC transmission converter valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201075122Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102129033A (en) * | 2010-12-23 | 2011-07-20 | 中国西电电气股份有限公司 | Test loop used for direct-current switch test |
| CN102486516A (en) * | 2010-12-01 | 2012-06-06 | 中国电力科学研究院 | Nonperiodic trigger test method for direct current converter valve |
| CN102486483A (en) * | 2010-12-01 | 2012-06-06 | 中国电力科学研究院 | RLC equivalent load apparatus of direct current converter valve multiple valve test |
| CN102486524A (en) * | 2010-12-01 | 2012-06-06 | 中国电力科学研究院 | Non-periodic trigger test apparatus of direct current converter valve |
| CN102680832A (en) * | 2012-05-24 | 2012-09-19 | 中国西电电气股份有限公司 | Test system and test method of transmission valve |
| CN101776732B (en) * | 2009-12-29 | 2013-03-27 | 中国电力科学研究院 | DC converter valve minimum triggering angle running test method |
| CN111562444A (en) * | 2019-02-13 | 2020-08-21 | 国家电网有限公司 | Anti-electromagnetic interference test device for direct current circuit breaker and test method thereof |
-
2007
- 2007-08-30 CN CNU2007201728613U patent/CN201075122Y/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101776732B (en) * | 2009-12-29 | 2013-03-27 | 中国电力科学研究院 | DC converter valve minimum triggering angle running test method |
| CN102486516A (en) * | 2010-12-01 | 2012-06-06 | 中国电力科学研究院 | Nonperiodic trigger test method for direct current converter valve |
| CN102486483A (en) * | 2010-12-01 | 2012-06-06 | 中国电力科学研究院 | RLC equivalent load apparatus of direct current converter valve multiple valve test |
| CN102486524A (en) * | 2010-12-01 | 2012-06-06 | 中国电力科学研究院 | Non-periodic trigger test apparatus of direct current converter valve |
| CN102486483B (en) * | 2010-12-01 | 2014-07-02 | 中国电力科学研究院 | RLC equivalent load apparatus of direct current converter valve multiple valve test |
| CN102486524B (en) * | 2010-12-01 | 2015-06-24 | 中国电力科学研究院 | Non-periodic trigger test apparatus of direct current converter valve |
| CN102129033A (en) * | 2010-12-23 | 2011-07-20 | 中国西电电气股份有限公司 | Test loop used for direct-current switch test |
| CN102129033B (en) * | 2010-12-23 | 2013-01-09 | 中国西电电气股份有限公司 | Test loop used for direct-current switch test |
| CN102680832A (en) * | 2012-05-24 | 2012-09-19 | 中国西电电气股份有限公司 | Test system and test method of transmission valve |
| CN102680832B (en) * | 2012-05-24 | 2014-10-29 | 中国西电电气股份有限公司 | Test system and test method of transmission valve |
| CN111562444A (en) * | 2019-02-13 | 2020-08-21 | 国家电网有限公司 | Anti-electromagnetic interference test device for direct current circuit breaker and test method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080618 |
|
| CX01 | Expiry of patent term |