CN101937057A - Synthesis loop for running test of converter valve for direct current power transmission project - Google Patents

Synthesis loop for running test of converter valve for direct current power transmission project Download PDF

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CN101937057A
CN101937057A CN 201010266305 CN201010266305A CN101937057A CN 101937057 A CN101937057 A CN 101937057A CN 201010266305 CN201010266305 CN 201010266305 CN 201010266305 A CN201010266305 A CN 201010266305A CN 101937057 A CN101937057 A CN 101937057A
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China
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test
valve
loop
subsystem
voltage
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CN 201010266305
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Chinese (zh)
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CN101937057B (en
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郑军
周会高
许钒
胡治龙
刘朴
黄熹东
张长春
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中国西电电气股份有限公司
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Abstract

The invention discloses a synthesis loop for the running test of a converter valve for a direct current power transmission project. The loop comprises a high-voltage power distribution system, a current source subsystem, a voltages source subsystem, an impact test subsystem, a short-circuit test subsystem, an alternating current filtering subsystem, a control protection system and an auxiliary system, wherein the auxiliary system comprises a low-voltage power distribution system, a water cooling system and a test parameter measuring system. The subsystems are integrated into one loop through reasonable circuit design, so the subsystems can be matched with one another to perform the running test of the converter valve; the loop has a simple structure and runs stably; and due to the control protection system, the running safety of the whole synthesis loop can be ensured, the service life of equipment is prolonged and failure rate is reduced. The synthesis loop can meet the requirement of the running test of the converter valve for the direct current power transmission project of +/-800kV/5000A and below; and tests prove that the synthesis loop can completely meet the requirement of all running test projects of a high-voltage direct current power transmission thyristor valve in the IEC60700-1:1998/GB/T 20990.1-2007 standard.

Description

A kind of DC transmission engineering converter valve operating test synthesis loop
Technical field
The invention belongs to power electronics and extra-high voltage experimental technique field, relate to a kind of test synthesis loop, especially a kind of ± 800kV/5000A and following DC transmission engineering converter valve operating test synthesis loop.
Background technology
In the process that realizes the ambitious goal that Party Central Committee's the year two thousand twenty national economy quadruples again, China faces the severe challenge of aspects such as electric power supply deficiency and the continuous increase of ecologic environment pressure.State Grid Corporation of China has formulated " extra-high voltage grid planning " for this reason, plan accelerate to advance hundred ten thousand volts exchange, ± 800kV volt direct current UHV transmission technical research and construction, for notional economic stability, developing in a healthy way escorts.
The development UHV transmission is that fund input is huge, the systems engineering of technical sophistication.Need to carry out great deal of experimental and relevant criterion formulation work before engineering construction, product development and the application, research technique and ability are at first guaranteed.This just requires domestic facility and the test condition that possesses the work such as research, exploitation, test and relevant criterion formulation of carrying out extra-high voltage electric transmission and transformation systematic study, engineering usefulness extra-high voltage set of equipments.The extra-high voltage converter valve is as one of key equipment of extra-high voltage direct-current transmission engineering, and its performance will directly influence the security and the reliability of UHV transmission engineering operation.Therefore, the properties of product of extra-high voltage converter valve must be verified on the test loop of equivalence.
The development UHV transmission, many equipment test parameters, product technology require all to await a large amount of tests, the analytic demonstration of system.In the extra-high voltage direct-current transmission technical field, still there is not the unified standard of relevant device test and product technology condition at present in the world, at present, the domestic open report of not seeing similar extra-high voltage converter valve operating test synthesis loop as yet.Therefore, developing a kind of being applicable to ± 800kV/5000A and following DC transmission engineering converter valve operating test synthesis loop, is that those skilled in the art urgently wish.Also to the blockade on new techniques of breaks through foreign company, going abroad for the product of China power transmission and transforming equipment manufacturing enterprise enters the international market, has the meaning of particular importance.
Summary of the invention
The objective of the invention is to overcome existing technological gap; a kind of DC transmission engineering converter valve operating test synthesis loop is provided; this test synthesis loop loop that multiple test is necessary combines by reasonable circuit design; and for the loop is provided with unified backup system and control protection system; form a kind ofly can satisfy ± 800kV/5000A and following DC transmission engineering be with the synthesis loop of converter valve operating test
The objective of the invention is to solve by the following technical programs:
This DC transmission engineering converter valve operating test synthesis loop comprises high tension distribution system, also comprises following system:
The current source subsystem, the power input of this current source subsystem is connected on the high tension distribution system, and this current source subsystem is connected with tested converter valve, for described tested converter valve provides the DC experiment electric current;
The voltage source subsystem, the power input of this voltage source subsystem is connected on the high tension distribution system, and this voltage source subsystem connects with tested converter valve, for described tested converter valve provides trial voltage;
The impulse test subsystem is made of impulse voltage generator; Described impulse test subsystem is connected with tested converter valve, for tested converter valve provides the transient state forward voltage between convalescence;
The short-circuit test subsystem is made of the ac short circuit generator, and described short-circuit test subsystem is connected with tested converter valve, for tested converter valve provides fault current;
The ac filter subsystem, described ac filter subsystem is connected on the described high tension distribution system, for whole described synthesis loop provides reactive-load compensation;
The control protection system for whole synthesis loop provides control timing, and when fault takes place, guarantees the loop device security by the protection action;
Backup system comprises low-voltage distribution system, water cooling system and test parameters measuring system; Described low-voltage distribution system uses each device power supply (DPS) input end of low-tension supply to be connected respectively with in the synthesis loop; Described water cooling system provides recirculated cooling water for each the valve group and the tested converter valve of synthesis loop; Described test parameters measuring system is gathered the electric signal of synthesis loop and the test parameters of tested converter valve, and send the control protection system to carry out respective handling the signal of gathering.
Further, above-mentioned current source subsystem comprises two cover 6P rectifier bridge branch roads, and the described 6P rectifier bridge of every cover branch road comprises converter power transformer, six pulse wave rectifier bridges, isolation valve and dc bus; The input end of the converter power transformer in the described two cover 6P rectifier bridge branch roads is connected to respectively on the high tension distribution system, and the output terminal of two converter power transformers is connected to the input end of two described six pulse wave rectifier bridges respectively; The corresponding output terminal brachium pontis parallel connection of two described six pulse wave rectifier bridges, and the series arm by two smoothing reactors connects between the output terminal noble potential of two 6 pulse wave rectifier bridges; Isolation valve in the described 6P rectifier bridge of the every cover branch road is as a brachium pontis of corresponding six pulse wave rectifier bridges, and the output terminals of the isolation valve in the two cover 6P rectifier bridge branch roads interconnect the back and are connected to the input end of test product valve to be measured by dc bus, and the output terminal of described test product valve to be measured is connected on the electronegative potential of output terminal of six pulse wave rectifier bridges.
Above-mentioned converter power transformer is a Y/Y type converter power transformer.
Further, above-mentioned voltage source subsystem comprises ULTC, rectifier bridge, vibration capacitance group, charging capacitor group, commutation inductance, reverse charging reactor, charging reactor and first to fourth auxiliary valve, the output terminal of described ULTC is connected with the input end of six pulse wave rectifier bridges, and the output terminal of described six pulse wave rectifier bridges and charging capacitor group and charging reactor are connected to form the loop; Described charging capacitor group also is in turn connected to form the loop with described first auxiliary valve, reverse charging reactor, vibration with capacitance group; One end of described the 4th auxiliary valve is connected between first auxiliary valve and the reverse charging reactor, and the other end is connected in vibration with between capacitance group and the charging capacitor group; Described vibration also connects and composes the loop with second auxiliary valve, commutation inductance and test product valve to be measured successively with capacitance group; Described second auxiliary valve also connects and composes the loop with the 3rd auxiliary valve.
Further, on test product valve to be measured, be parallel with the passband high-voltage sensor, be provided with the negative feedback control loop between described passband high-voltage sensor and the rectifier bridge.
Further, above-mentioned short-circuit test subsystem comprises the generator loop, and described generator loop is connected in series successively by short-circuit generator, first electric brake, second electric brake, resistance and the former limit of step-up transformer and forms; The secondary of described step-up transformer is parallel with respectively adjusts capacitive branch and test product valve to be measured, and described adjustment capacitive branch is made of the 3rd electric brake and adjustment capacitance series; The cold end ground connection of described step-up transformer secondary; Described test product valve to be measured also is connected with current source and voltage source, and test product valve to be measured is connected to form the loop with the output terminal of described current source and voltage source respectively.
Also be connected with waved switch and the 4th electric brake between the hot end of above-mentioned adjustment capacitive branch and test product valve to be measured.
The present invention has following beneficial effect:
DC transmission engineering of the present invention uses the converter valve operating test synthesis loop with the current source subsystem; the voltage source subsystem; the control protection system; the ac filter subsystem; the impulse test subsystem; short-circuit test subsystem and ancillary test system are integrated in the middle of the loop by reasonable circuit design; each subsystem can be cooperatively interacted carry out the running test of converter valve; this synthesis loop is not only simple in structure; easy to operate; and it is stable; owing to added the control protection system; make the safety in operation of whole synthesis loop be guaranteed; and prolonged the serviceable life of equipment, reduced failure rate.Synthesis loop of the present invention can satisfy ± and 800kV/5000A and following DC transmission engineering be with the running test of converter valve, and evidence, can satisfy IEC60700-1:1998/GB/T 20990.1 fully---the whole running test project demands of 2007 standard mesohigh direct current transportation thyristor valves.
Description of drawings
Fig. 1 is a synthesis loop structured flowchart of the present invention;
Fig. 2 is synthesis loop main circuit figure of the present invention;
Fig. 3 is the current source subsystem structural drawing of synthesis loop of the present invention;
Fig. 4 is the voltage source subsystem structural drawing of synthesis loop of the present invention;
Fig. 5 is the short-circuit test subsystem structural drawing of synthesis loop of the present invention;
Fig. 6 is the control protection subsystem structural drawing of synthesis loop of the present invention;
Fig. 7 triggers sequential chart for the test of synthesis loop of the present invention;
Fig. 8 is the type testing mode test waveform of synthesis loop of the present invention, and wherein (a) is hot running test oscillogram; (b) be α=90 ° operating-duty test oscillograms; (c) be fault current test waveform figure; (d) be interrupted current test waveform figure; (e) be transient state forward voltage test oscillogram between convalescence.
Embodiment
Below in conjunction with accompanying drawing the present invention is done and to describe in further detail:
Referring to Fig. 1; DC transmission engineering of the present invention converter valve operating test synthesis loop; comprise high tension distribution system, current source subsystem, voltage source subsystem, control protection system, ac filter subsystem, impulse test subsystem, short-circuit test subsystem and ancillary test system (containing low-voltage distribution system, water cooling system, test parameters measuring system etc.), below each subsystem described in detail:
Current source subsystem 1
Referring to Fig. 2 and Fig. 3, current source subsystem among Fig. 2 is a reduced graph, and the physical circuit map is shown in Figure 3, and the power input of current source subsystem is connected on the high tension distribution system, and this current source subsystem is connected with tested converter valve, for described tested converter valve provides the DC experiment electric current.
The current source subsystem comprises two covers, 6 pulse wave rectifier bridge branch roads (6P of the present invention i.e. six pulse waves), and every cover 6 pulse wave rectifier bridge branch roads comprise converter power transformer T1/T2, six pulse wave rectifier bridge B1/B2, isolation valve Va0/Va1, smoothing reactor L_SR1/L_ST2 and dc bus; It is online that the input end of converter power transformer T1/T2 in described two covers, the 6 pulse wave rectifier bridge branch roads is connected to high voltage power distribution respectively, and the output terminal of two converter power transformer T1/T2 is connected to the input end of two described six pulse wave rectifier bridge B1/B2 respectively; Two described six pulse wave rectifier bridge B1, B2 output hot ends directly link to each other by dc bus, are connected to the hot end of two 6 pulse wave rectifier bridge B1, B2 after the cold end of two 6 pulse wave rectifier bridge B1, B2 is connected with two smoothing reactor L_SR1, L_ST2 respectively and is compiled in a bit; Isolation valve Va0/Va1 in the described 6 pulse wave rectifier bridge branch roads of every cover with after tested converter valve VUT connects respectively as the brachium pontis of corresponding six pulse wave rectifier bridge B1/B2.The output terminals of the two isolation valve Va0/Va1s of cover in the 6 pulse wave rectifier bridge branch roads interconnect the back and are connected to the input end of tested converter valve VUT by dc bus, and the output terminal of described tested converter valve VUT is connected to two smoothing reactor L_SR1, L_ST2 and confluxes on the noble potential of the output terminal that is connected to six pulse wave rectifier bridge B1/B2 behind the node again.
Voltage source subsystem 4
The power input of voltage source subsystem is connected on the high tension distribution system, and this voltage source subsystem connects with tested converter valve, for described tested converter valve provides trial voltage.
Referring to Fig. 2 and Fig. 4, wherein shown in Figure 2 is the reduced graph of voltage source subsystem, the physical circuit figure of voltage source subsystem as shown in Figure 4: this voltage source subsystem comprises that ULTC T3, rectifier bridge B3, vibration are with capacitance group Cs, charging capacitor group C L, commutation inductance L1, reverse charging reactor L2, charging reactor L3 and first to fourth auxiliary valve Va2~Va5.The output terminal of ULTC T is connected with the input end of six pulse wave rectifier bridge B, the output terminal of six pulse wave rectifier bridge B and charging capacitor group C LL3 is connected to form the loop with charging reactor.Charging capacitor group C LAlso be in turn connected to form the loop with capacitance group Cs with the described first auxiliary valve Va2, reverse charging reactor L2, vibration.The end of the 4th auxiliary valve Va5 is connected between the first auxiliary valve Va2 and the reverse charging reactor L2, and the other end is connected in vibration capacitance group Cs and charging capacitor group C LBetween.Vibration also connects and composes the loop with the second auxiliary valve Va3, commutation inductance L1 and test product valve VUT to be measured successively with capacitance group Cs.The second auxiliary valve Va3 also connects and composes the loop with the 3rd auxiliary valve Va4.In order to adjust rectifier bridge B3, on test product valve VUT to be measured, be parallel with the passband high-voltage sensor, be provided with the negative feedback control loop between passband high-voltage sensor and the rectifier bridge B3.
Impulse test subsystem 3
Referring to Fig. 2, this impulse test subsystem 3 is made of impulse voltage generator, this impulse voltage generator is connected on the test product valve VUT to be measured in conjunction with the auxiliary circuit (seeing accompanying drawing 2 for details) that is connected and composed by resistance, electric capacity and diode, for being provided the transient state forward voltage between convalescence by the valve of test product valve VUT to be measured.
Short-circuit test subsystem 5
Referring to Fig. 5, this section way test subsystem 5 is made of the ac short circuit generator, and this subsystem is connected with test article valve VUT, for tested converter valve provides fault current.This system specifically is constructed as follows:
Short-circuit test subsystem 5 comprises the generator loop, and the generator loop is connected in series successively by short-circuit generator G, the first electric brake HK, the second electric brake CD, resistance R and the former limit of step-up transformer T and forms; The secondary of step-up transformer T is parallel with respectively adjusts capacitive branch and test product valve VUT to be measured, adjusts capacitive branch and is made of the 3rd electric brake K3 and adjustment capacitor C serial connection; The cold end ground connection of step-up transformer T secondary; Test product valve VUT to be measured also is connected with current source and voltage source, and test product valve VUT to be measured is connected to form the loop with the output terminal of described current source and voltage source respectively.In addition, between the hot end of adjusting capacitive branch and test product valve VUT to be measured, also be connected with waved switch FK1 and the 4th electric brake K4.
Ac filter subsystem 2
Referring to Fig. 2, ac filter subsystem 2 is connected on the high tension distribution system, for whole synthesis loop provides reactive-load compensation.This ac filter subsystem 2 is made of ac filter capacitor, ac filter reactor, discharge coil, lightning arrester and corresponding switchgear, and the annexation of each element as shown in Figure 2.
The control protection system,
Referring to Fig. 6; control protection system of the present invention is made up of man-machine interface OWS, host A CP, main frame VCP, measurement and control unit, and wherein measurement and control unit comprises the observing and controlling AFT0 of electric substation, little AFT1 of wave filter, alternating-current switch observing and controlling AFT2, tranformer protection control AFT3 and valve base electronic unit VBE.This control protection system provides control timing for whole synthesis loop, and when fault takes place, guarantees the loop device security by the protection action; Figure 6 shows that the structural drawing of control protection system, wherein the interchange data that provide by each alternating-current field terminal of host A CP realize exchanging defencive function; Main frame VCP realizes that then the trigger pulse of direct current protecting and VBE produces function.The operator realizes detecting in real time and control function by man-machine interface OWS.
Backup system
Comprise low-voltage distribution system, water cooling system and test parameters measuring system.Low-voltage distribution system uses each device power supply (DPS) input end of low-tension supply to be connected respectively with in the synthesis loop.Water cooling system (as shown in Figure 1) provides recirculated cooling water for each the valve group and the tested converter valve of synthesis loop.The test parameters measuring system is gathered the electric signal of synthesis loop and the test parameters of tested converter valve, and send the control protection system to carry out respective handling the signal of gathering.This test parameters measuring system is mainly gathered the electric signal and the test product valve test parameters of synthetic test loop key point; and send the control protection system to carry out respective handling the coherent signal, whether meet the demands to detect corresponding test parameters (as temperature, electric current, just/reverse voltage, di/dt, dv/dt etc.).
Based on above architectural feature, below introduce the course of work of the present invention in detail:
When the operation, the voltage source subsystem starts earlier with the converter valve operating test synthesis loop for DC transmission engineering of the present invention, when voltage reaches setting value, and release current source subsystem.When synthetic test loop after stable under the setup parameter condition, progressively raise test current and trial voltage, whether the desired parameters value of experiment with measuring meets the demands simultaneously, finally finishes test.Test triggers sequential chart and sees Fig. 7, and six pulse wave rectifier bridge B1 and B2 provide a brachium pontis respectively, and by connecting with test product valve VUT to be measured after the isolation valve Va0/Va1 parallel connection, test product valve VUT to be measured is as the shared brachium pontis of two current source bridges.Load current I as test product valve VUT to be measured d(coming from the current source subsystem) arrives current zero t 3Before, as shown in Figure 2, because at t 1Constantly, the forward electric charge of Cs discharges because of the triggering of the second auxiliary valve Va3, discharges to test product valve VUT to be measured by commutation inductance L1, forms the introducing electric current of voltage source subsystem.At t2 constantly, the principal current zero passage, isolation valve Va1 and Va0 turn-off, and the current source subsystem is isolated.
Test product valve VUT to be measured is after the principal current zero passage, and conducting should be introduced the about hundreds of μ of electric current s separately.The voltage source subsystem is introduced electric current and is half-sinusoid.Commutation inductance L1 is an important parameters, represents the commutating reactance in the side circuit.Regulate vibration with capacitance group Cs and commutation inductance L1, make half-wave introduce time (t 1~t 3) being equal to or higher than 600 μ s, vibration will be introduced electric current at current zero t with the pre-charge voltage of capacitance group Cs with commutation inductance L1 3Precontract 200 μ s reproduce running current at interval exactly, and test product valve VUT to be measured introduces the current zero blocking-up, after half-wave is introduced electric current, vibration with capacitance group Cs upward voltage reversal become U 1By triggering the 3rd auxiliary valve Va4, this reverse voltage is charged to Ct by loop Cs-Va4-L1-Ct again, has formed transient recovery voltage and reverse recovery voltage.Need to prove: described Ct is in parallel with test product valve VUT to be measured, and it simulates test product valve VUT stray capacitance to be measured, and in fact this Ct is a non-existent equivalent.
After the transient recovery voltage, the 4th auxiliary valve Va5 and the second auxiliary valve Va3 are at t 4Time trigger, the voltage reversal of this feasible vibration on the capacitance group Cs, correspondingly, the polarity of voltage on Ct and test product valve VUT to be measured is also from U 1Change to U 2The first auxiliary valve Va2 is at t 7Time trigger is from main capacitance C LOn the electric current (I of Fig. 7 Ch) voltage drop of compensation on the Cs.At t 8Constantly, after Cs obtained full remuneration, Va2 was blocked by reversing oscillating current, and test product valve VUT to be measured bears forward voltage U 3
Test product valve VUT to be measured is in the t9 time trigger.The capacitor Ct that is precharged to same voltage levvl will be by test product valve VUT discharge to be measured, produce as initially shoving under the service condition, the triggering of test product valve VUT to be measured makes the loss of voltage on its terminal, thereby cause being applied on the Va1/Va0 fully from current source voltage, and then, the triggering to Va1/Va0 makes the big electric current of test by Va1/Va0 and test product valve VUT to be measured.Big current lead-through 1/3 all after dates are introduced voltage source subsystem injection current by the triggering of Va3 again, enter next test circulation.The test waveform of type testing mode of the present invention is shown in Fig. 8 (a)~(e).
The present invention adopts the method for synthetic test, rely on independent research, creationary built up domestic first ± 800kV/5000A and following DC transmission engineering converter valve operating test synthesis loop, this is for breaking the monopolization situation of foreign enterprise in the extra-high voltage direct-current transmission field, the blockade on new techniques of breaks through foreign company, going abroad for the product of China power transmission and transforming equipment manufacturing enterprise enters the international market, has the meaning of particular importance.Simultaneously, the present invention can provide research and development of products and test platform for many domestic relevant devices manufacturing firm, for the production domesticization ability that further improves extra-high voltage direct-current transmission equipment creates conditions.

Claims (7)

1. a DC transmission engineering converter valve operating test synthesis loop comprises high tension distribution system, it is characterized in that, also comprises following system:
The current source subsystem, the power input of described current source subsystem is connected on the high tension distribution system, and this current source subsystem is connected with tested converter valve, for described tested converter valve provides the DC experiment electric current;
The voltage source subsystem, the power input of described voltage source subsystem is connected on the high tension distribution system, and this voltage source subsystem is connected with tested converter valve, for described tested converter valve provides trial voltage;
The impulse test subsystem is made of impulse voltage generator; Described impulse test subsystem is connected with tested converter valve, for the valve of tested converter valve provides the transient state forward voltage between convalescence;
The short-circuit test subsystem is made of the ac short circuit generator, and described short-circuit test subsystem is connected with tested converter valve, for tested converter valve provides fault current;
The ac filter subsystem, described ac filter subsystem is connected on the described high tension distribution system, for whole synthesis loop provides reactive-load compensation;
The control protection system for whole synthesis loop provides control timing, and when fault takes place, guarantees the loop device security by the protection action;
Backup system comprises low-voltage distribution system, water cooling system and test parameters measuring system; Described low-voltage distribution system uses each device power supply (DPS) input end of low-tension supply to be connected respectively with in the synthesis loop; Described water cooling system provides recirculated cooling water for each the valve group and the tested converter valve of synthesis loop; Described test parameters measuring system is gathered the electric signal of synthesis loop and the test parameters of tested converter valve, and send the control protection system to carry out respective handling the signal of gathering.
2. DC transmission engineering converter valve operating test synthesis loop according to claim 1, it is characterized in that, described current source subsystem comprises two covers, 6 pulse wave rectifier bridge branch roads, and the described 6 pulse wave rectifier bridge branch roads of every cover comprise converter power transformer (T1/T2), six pulse wave rectifier bridges (B1/B2), isolation valve (Va0/Va1), smoothing reactor (L_SR1/L_ST2) and dc bus; It is online that the input end of the converter power transformer (T1/T2) in described two covers, the 6 pulse wave rectifier bridge branch roads is connected to high voltage power distribution respectively, and the output terminal of two converter power transformers (T1/T2) is connected to the input end of two described six pulse wave rectifier bridges (B1/B2) respectively; Two described six pulse wave rectifier bridges (B1, B2) output hot end directly links to each other by dc bus, is connected to the hot end of two 6 pulse wave rectifier bridges (B1, B2) after the cold end of two 6 pulse wave rectifier bridges (B1, B2) is connected with two smoothing reactors (L_SR1, L_ST2) respectively and is compiled in a bit; Isolation valve (Va0/Va1) in the described 6 pulse wave rectifier bridge branch roads of every cover with after tested converter valve (VUT) is connected respectively as a brachium pontis of corresponding six pulse wave rectifier bridges (B1/B2).
3. DC transmission engineering converter valve operating test synthesis loop according to claim 2 is characterized in that, described converter power transformer (T1, T2) is a Y/Y type converter power transformer.
4. DC transmission engineering converter valve operating test synthesis loop according to claim 1 is characterized in that, described voltage source subsystem comprises ULTC (T3), rectifier bridge (B3), vibration capacitance group (Cs), charging capacitor group (C L), commutation inductance (L1), reverse charging reactor (L2), charging reactor (L3) and first to fourth auxiliary valve (Va2~Va5), the output terminal of described ULTC (T) is connected with the input end of six pulse wave rectifier bridges (B), the output terminal of described six pulse wave rectifier bridges (B) and charging capacitor group (C L) and charging reactor (L3) be connected to form the loop; Described charging capacitor group (C L) also be in turn connected to form the loop with capacitance group (Cs) with described first auxiliary valve (Va2), reverse charging reactor (L2), vibration; One end of described the 4th auxiliary valve (Va5) is connected between first auxiliary valve (Va2) and the reverse charging reactor (L2), and the other end is connected in vibration capacitance group (Cs) and charging capacitor group (C L) between; Described vibration also connects and composes the loop with second auxiliary valve (Va3), commutation inductance (L1) and test product valve to be measured (VUT) successively with capacitance group (Cs); Described second auxiliary valve (Va3) also connects and composes the loop with the 3rd auxiliary valve (Va4).
5. DC transmission engineering converter valve operating test synthesis loop according to claim 4, it is characterized in that, on test product valve to be measured (VUT), be parallel with the passband high-voltage sensor, be provided with the negative feedback control loop between described passband high-voltage sensor and the rectifier bridge (B3).
6. DC transmission engineering converter valve operating test synthesis loop according to claim 1, it is characterized in that, described short-circuit test subsystem comprises the generator loop, and described generator loop is connected in series successively by short-circuit generator (G), first electric brake (HK), second electric brake (CD), resistance (R) and the former limit of step-up transformer (T) and forms; The secondary of described step-up transformer (T) is parallel with respectively adjusts capacitive branch and test product valve to be measured (VUT), and described adjustment capacitive branch is by the 3rd electric brake (K3) and adjust electric capacity (C) serial connection formation; The cold end ground connection of described step-up transformer (T) secondary; Described test product valve to be measured (VUT) also is connected with current source and voltage source, and test product valve to be measured (VUT) is connected to form the loop with the output terminal of described current source and voltage source respectively.
7. DC transmission engineering converter valve operating test synthesis loop according to claim 6 is characterized in that, also is connected with waved switch (FK1) and the 4th electric brake (K4) between the hot end of described adjustment capacitive branch and test product valve to be measured (VUT).
CN201010266305A 2010-08-30 2010-08-30 Synthesis loop for running test of converter valve for direct current power transmission project CN101937057B (en)

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CN105589033A (en) * 2015-12-14 2016-05-18 王永妍 Electromagnetic transient measurement equipment system for switch of high-voltage DC converter valve
CN105629032A (en) * 2015-12-28 2016-06-01 中国西电电气股份有限公司 Valve control signal time sequence test loop in converter valve short circuit current fault working condition
CN106679950A (en) * 2016-12-22 2017-05-17 中国西电电气股份有限公司 Converter valve hydrocooling device test device and test method thereof
CN106771992A (en) * 2016-11-09 2017-05-31 南方电网科学研究院有限责任公司 The measuring method and device of flexible direct current converter valve power cell voltage's distribiuting
CN107179497A (en) * 2016-12-28 2017-09-19 全球能源互联网研究院 The synthetic test equipment and test method of flexible direct current converter valve and dc circuit breaker
CN110261762A (en) * 2019-05-05 2019-09-20 北京四方继保自动化股份有限公司 It is a kind of to liquidate suitable for valve section power and the circuit of short-circuit test

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CN103645399A (en) * 2013-11-30 2014-03-19 许继电气股份有限公司 Converter valve submodule automatic test system and thyristor test circuit thereof
CN103645399B (en) * 2013-11-30 2016-04-20 许继电气股份有限公司 A kind of converter valve submodule Auto-Test System and thyristor test circuit thereof
CN103744017B (en) * 2014-01-14 2017-10-10 上海交通大学 Extra-high voltage direct current converter valve runs synthetic test equipment
CN103744017A (en) * 2014-01-14 2014-04-23 上海交通大学 Operation synthesis tester for ultrahigh voltage direct current converter valve
CN105137212A (en) * 2015-06-11 2015-12-09 中国西电电气股份有限公司 Method for realizing short-circuit test between pole lines of converter valve by using high-speed power electronic switch
CN105021984B (en) * 2015-07-15 2018-01-19 南京南瑞继保电气有限公司 DC converter valve fault current experimental rig and its test method
CN105021984A (en) * 2015-07-15 2015-11-04 南京南瑞继保电气有限公司 Direct current converter valve fault current test device and test method thereof
CN105589033A (en) * 2015-12-14 2016-05-18 王永妍 Electromagnetic transient measurement equipment system for switch of high-voltage DC converter valve
CN105629032A (en) * 2015-12-28 2016-06-01 中国西电电气股份有限公司 Valve control signal time sequence test loop in converter valve short circuit current fault working condition
CN106771992B (en) * 2016-11-09 2019-06-28 南方电网科学研究院有限责任公司 The measurement method and device of flexible direct current converter valve power cell voltage's distribiuting
CN106771992A (en) * 2016-11-09 2017-05-31 南方电网科学研究院有限责任公司 The measuring method and device of flexible direct current converter valve power cell voltage's distribiuting
CN106679950B (en) * 2016-12-22 2019-01-25 中国西电电气股份有限公司 A kind of converter valve is water-cooled equipment test device and its test method
CN106679950A (en) * 2016-12-22 2017-05-17 中国西电电气股份有限公司 Converter valve hydrocooling device test device and test method thereof
CN107179497A (en) * 2016-12-28 2017-09-19 全球能源互联网研究院 The synthetic test equipment and test method of flexible direct current converter valve and dc circuit breaker
CN110261762A (en) * 2019-05-05 2019-09-20 北京四方继保自动化股份有限公司 It is a kind of to liquidate suitable for valve section power and the circuit of short-circuit test

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