CN102012481A - Thyristor level test method for novel converter valve module - Google Patents
Thyristor level test method for novel converter valve module Download PDFInfo
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- 238000010998 test method Methods 0.000 title claims abstract description 9
- 238000012360 testing method Methods 0.000 claims abstract description 49
- 238000000034 method Methods 0.000 claims abstract description 7
- 238000013016 damping Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 5
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- 230000002950 deficient Effects 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 claims description 2
- 230000015556 catabolic process Effects 0.000 claims description 2
- 238000010304 firing Methods 0.000 claims description 2
- 230000005622 photoelectricity Effects 0.000 claims description 2
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- 238000009666 routine test Methods 0.000 abstract description 9
- 238000013461 design Methods 0.000 abstract description 4
- 230000008859 change Effects 0.000 abstract description 2
- 238000011990 functional testing Methods 0.000 abstract 2
- 238000005516 engineering process Methods 0.000 description 3
- 208000034657 Convalescence Diseases 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
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Abstract
The invention relates to the field of power system devices, in particular to a test method for a novel converter valve module. Before each converter valve leaves a factory, a routine test needs to be performed, wherein the most important item in the routine test is a functional test which is used for checking whether the thyristor level electric wiring of the converter valve module and thyristor electric equipment (TE) are normal. The invention discloses a novel design method for the functional test. A test circuit comprises an alternating current power supply, an alternating current filter, an isolating switch, a voltage regulator, an isolating transformer, a current limiting resistor, an insulated grid bipolar-type power tubes (IGBTs) which are connected in series positively and negatively, an impulse voltage generator and a test platform. The work of the test circuit is that: unified control is performed through the test platform; a test voltage is provided for a thyristor level by the alternating current system circuit; the on-off state of a loop is controlled by the IGBTs so that the voltage and the current applied to the thyristor level change; and the impulse voltage generator is used for providing an impulse voltage for the thyristor level.
Description
Technical field
The present invention relates to the electric system devices field, be specifically related to a kind of novel converter valve module test method.
Background technology
The most basic in the converter valve module test is routine test, need to carry out functional trial before the routine test, because traditional DC transmission engineering all is the external converter valve of buying, thereby the functional trial in the converter valve routine test all needs to use valve test equipment (VTE) to do experiment, the technology of VTE is grasped by foreign company for a long time, domestic at present because DC transmission engineering does not also have the converter valve of independent research, thereby this functional trial does not have reliable test method and advanced testing equipment yet, this invention promptly is the design proposal that proposes a kind of converter valve functions of modules test of novelty under a kind of like this background technology, this technical scheme method for designing novelty has very strong novelty.
Invention CN20010241741.8 has described a kind of new DC converter valve routine test unit, it is characterized in that utilizing the core of industrial computer as system, comprise various test peripheral circuits, low-voltage triggers test unit, the surge voltage unit, impedance instrument etc.Utilize discharging and recharging and other operation of peripheral devices of PLC steering logic control impact unit.This test unit constitutes complicated, realizes that difficulty is bigger, at present the domestic test unit that the independent research success is not also arranged yet and be applied to actual engineering.Invention circuit design of the present invention is simple, is easy to realize that Billy controls simple optimizing with PLC.TE test platform simplicity of design, all control loop all adopts light path control, prevents that electric signal from disturbing, and controls safe and reliable.
Summary of the invention
The DC converter valve TE function test method that the purpose of this invention is to provide a kind of novelty.Because before each converter valve module is dispatched from the factory, must carry out routine test, most important one is functional trial in the routine test, is used to verify the electrical wiring of converter valve module thyristor level, whether function is normal for thyristor electronic equipment (TE).Owing to do not have under the situation of external import VTE, can to carry out the valve module routine test smoothly in order overcoming, to have proposed method of the present invention.The correct wiring of thyristor level and the reliably working of TE are the preconditions that guarantees the normal operation of converter valve operation, because the present domestic successful VTE of research and development on the market that still do not have, in order to promote the production domesticization research and development process of converter valve, the present invention proposes a kind of test method of novelty, be used for not having to finish this functional trial content under the condition of VTE.
A kind of novel converter valve module thyristor level test method that the present invention proposes comprises
(1) hookup comprises that insulated gate bipolar power tube IGBT, impulse voltage generator and the test platform of AC power, alternating current filter, disconnector, pressure regulator, isolating transformer, current-limiting resistance, forward and reverse series connection constitute, in circuit, AC power links to each other with alternating current filter AF, purpose is in order to obtain alternating voltage waveform preferably, AC power links to each other with disconnector, provides on-off circuit to circuit; Power supply links to each other with pressure regulator by disconnector, the output terminal of pressure regulator links to each other with the input end of isolating transformer, by adjusting the voltage of pressure regulator, adjust the output voltage of transformer, the output terminal of isolating transformer links to each other with current-limiting resistance, effect is that the electric current of limit circuit is not excessive, thereby avoid in the defective loop other components and parts, the output terminal of current-limiting resistance links to each other with insulated gate bipolar power tube IGBT, the output terminal of insulated gate bipolar power tube IGBT links to each other with thyristor level test product, purpose is for turning on and off by control insulated gate bipolar power tube IGBT, control the voltage waveform that is applied to the thyristor two ends, the output terminal of impulse voltage generator is connected with thyristor level test product, high-pressure side is connected on the thyristor anode, low pressure end is connected with the thyristor negative electrode, and ground connection, and effect is for thyristor is applied surge voltage;
(2) connected mode of the insulated gate bipolar power tube IGBT of described forward and reverse series connection is that the first insulated gate bipolar power tube IGBT1 and the second insulated gate bipolar power tube IGBT2 are connected in parallel, each insulated gate bipolar power tube IGBT is parallel with fly-wheel diode, when circuit voltage is timing, current in loop forms path by the parallel diode of the first insulated gate bipolar power tube IGBT1 and the second insulated gate bipolar power tube IGBT2, for thyristor provides forward voltage; When circuit voltage when negative, current in loop forms path by the parallel diode of the second insulated gate bipolar power tube IGBT2 and the first insulated gate bipolar power tube IGBT1, for thyristor provides reverse voltage; Send trigger pulse by test platform to insulated gate bipolar power tube IGBT, when trigger pulse is high level, insulated gate bipolar power tube IGBT conducting, when trigger pulse was low level, insulated gate bipolar power tube IGBT turn-offed; When insulated gate bipolar power tube IGBT conducting, the loop is open-minded, and voltage is applied to the thyristor anode, and when turn-offed in the loop, voltage can not add to the thyristor anode;
Wherein, described impulse voltage generator adopts the photoelectricity triggering mode, and when receiving the triggering firing pulse of test platform transmission, impulse voltage generator triggers igniting, make the breakdown discharge in ball crack of impulse voltage generator, the surge voltage waveform is applied to the thyristor two ends.
Wherein, described test platform by alternating current filter, obtains the synchronous working signal for test platform work by being connected with the AC side power supply, sends trigger pulse by built-in system to the circuit board TE of thyristor level, and accepts its repayment pulse.
Wherein, described thyristor level test product comprises damping circuit, the equal hydraulic circuit of direct current, thyristor and thyristor electronic equipment TE, and damping circuit comprises damping resistance and damping capacitor, and the equal hydraulic circuit of direct current comprises two direct current equalizing resistance series connection.
The functional trial that the invention has the beneficial effects as follows thyristor level and TE needs voltage generation circuit and TE repayment pick-up unit to finish jointly, wherein voltage generation circuit comprises power frequency low-voltage generating means and impulse voltage generator, the thyristor operate as normal need be sent by test platform and trigger coded pulse to TE, produce trigger pulse by TE, and triggering thyristor, and receive various reported information by TE produced, comprehensively judge to the electric current and voltage that is applied to impulse voltage generator with by the status information of TE repayment by test platform, provide the result of this functional trial.
Description of drawings
In order to make content of the present invention by clearer understanding, and be convenient to the description of embodiment, it is as follows to provide description of drawings related to the present invention below:
Fig. 1 is converter valve module test principle figure of the present invention.
Fig. 2 is thyristor trigger voltage waveform and trigger waveform.
Fig. 3 is the waveform of thyristor convalescence protection test.
Embodiment
The technical scheme of this invention as shown in Figure 1, this test unit is made of pressure regulator, isolating transformer, current-limiting resistance, TE test platform, impulse voltage generator, test product and TE, its electric connecting relation as seen from the figure, its principle of work is as follows: voltage generation circuit constitutes the low-voltage loop by 220Vms alternating current source and isolating transformer, impulse voltage generator constitutes high voltage circuit, this two finish the needed voltage waveform of functional trial.The TE test platform sends thyristor to TE and triggers coded pulse, and receives the status monitoring information by the TE repayment.
Referring to accompanying drawing 1, converter valve module thyristor level hookup is that IGBT, impulse voltage generator, the test platform by AC power, alternating current filter, disconnector, pressure regulator, isolating transformer, current-limiting resistance, forward and reverse series connection constitutes.In circuit, AC power links to each other with alternating current filter AF, and purpose is in order to obtain alternating voltage waveform preferably, and AC power links to each other with disconnector, for providing on-off circuit to circuit.Power supply links to each other with pressure regulator by disconnector, and the output terminal of pressure regulator links to each other with the input end of isolating transformer, can adjust the output voltage of transformer by adjusting the voltage of pressure regulator.The output terminal of isolating transformer links to each other with current-limiting resistance, purpose be for the electric current of limit circuit not excessive, so as not to other components and parts in the defective loop.The output terminal of current-limiting resistance links to each other with IGBT, and the output terminal of GBT links to each other with thyristor level test product, and purpose is for by controlling turning on and off of IGBT, controls the voltage waveform that is applied to the thyristor two ends.The output terminal of impulse voltage generator is connected with thyristor level test product, and high-pressure side is connected on the thyristor anode, and low pressure end is connected with the thyristor negative electrode, and ground connection, its objective is for thyristor is applied surge voltage.Impulse voltage generator is to make it trigger igniting by test platform to the light trigger pulse that its transmission pulse width is about 100us.
The connected mode of the IGBT of forward and reverse series connection is that IGBT1 and IGBT2 are connected in parallel, each IGBT is parallel with fly-wheel diode, when circuit voltage is timing, current in loop forms path by the parallel diode of IGBT1, IGBT2, for thyristor provides forward voltage.When circuit voltage when negative, current in loop forms path by the parallel diode of IGBT2, IGBT1, for thyristor provides reverse voltage.Send trigger pulse by test platform to IGBT, when trigger pulse be high point at ordinary times, the IGBT conducting, when trigger pulse was low level, IGBT turn-offed.When the IGBT conducting, the loop is open-minded, and voltage is applied to the thyristor anode, and when turn-offed in the loop, voltage can not add to the thyristor anode.
In order to describe test findings in detail, referring to accompanying drawing 2, be TE triggers thyristor after receiving trigger pulse waveform, the waveform of A channel wherein, first level are that thyristor triggers coded pulse, second is to stop coded pulse.Be to produce by the TE test platform.The waveform of B passage is the voltage waveform after the triggering of thyristor, and this voltage is the waveform of low-voltage test, promptly is to be produced by the circuit in the accompanying drawing 1.As seen, after receiving the triggering coded pulse, TE can trigger thyristor.Promptly realize thyristor converter valve low pressure test (LPT) conditions needed, can satisfy this test.
Fig. 3 is the waveform of thyristor convalescence protection test.The A channel trigger pulse that to be TE send to impulse voltage generator wherein, impulse voltage generator produces the surge voltage waveform after receiving this pulse, when TE detects this surge voltage and is worth greater than protection, the thyristor protection triggering.
Above by special embodiment content description the present invention, but those skilled in the art also can recognize the multiple possibility of modification and optional embodiment, for example, by combination and/or change the feature of single embodiment.Therefore, be understandable that these modification and optional embodiment will be considered as included among the present invention, only enclosed invention claims of scope of the present invention and coordinator restriction thereof.
Claims (4)
1. novel converter valve module thyristor level test method is characterized in that:
(1) hookup comprises that insulated gate bipolar power tube IGBT, impulse voltage generator and the test platform of AC power, alternating current filter, disconnector, pressure regulator, isolating transformer, current-limiting resistance, forward and reverse series connection constitute, in circuit, AC power links to each other with alternating current filter AF, purpose is in order to obtain alternating voltage waveform preferably, AC power links to each other with disconnector, provides on-off circuit to circuit; Power supply links to each other with pressure regulator by disconnector, the output terminal of pressure regulator links to each other with the input end of isolating transformer, by adjusting the voltage of pressure regulator, adjust the output voltage of transformer, the output terminal of isolating transformer links to each other with current-limiting resistance, effect is that the electric current of limit circuit is not excessive, thereby avoid in the defective loop other components and parts, the output terminal of current-limiting resistance links to each other with insulated gate bipolar power tube IGBT, the output terminal of insulated gate bipolar power tube IGBT links to each other with thyristor level test product, purpose is for turning on and off by control insulated gate bipolar power tube IGBT, control the voltage waveform that is applied to the thyristor two ends, the output terminal of impulse voltage generator is connected with thyristor level test product, high-pressure side is connected on the thyristor anode, low pressure end is connected with the thyristor negative electrode, and ground connection, and effect is for thyristor is applied surge voltage;
(2) connected mode of the insulated gate bipolar power tube IGBT of described forward and reverse series connection is that the first insulated gate bipolar power tube IGBT1 and the second insulated gate bipolar power tube IGBT2 are connected in parallel, each insulated gate bipolar power tube IGBT is parallel with fly-wheel diode, when circuit voltage is timing, current in loop forms path by the parallel diode of the first insulated gate bipolar power tube IGBT1 and the second insulated gate bipolar power tube IGBT2, for thyristor provides forward voltage; When circuit voltage when negative, current in loop forms path by the parallel diode of the second insulated gate bipolar power tube IGBT2 and the first insulated gate bipolar power tube IGBT1, for thyristor provides reverse voltage; Send trigger pulse by test platform to insulated gate bipolar power tube IGBT, when trigger pulse is high level, insulated gate bipolar power tube IGBT conducting, when trigger pulse was low level, insulated gate bipolar power tube IGBT turn-offed; When insulated gate bipolar power tube IGBT conducting, the loop is open-minded, and voltage is applied to the thyristor anode, and when turn-offed in the loop, voltage can not add to the thyristor anode.
2. the method for claim 1, it is characterized in that described impulse voltage generator adopts the photoelectricity triggering mode, when receiving the triggering firing pulse of test platform transmission, impulse voltage generator triggers igniting, make the breakdown discharge in ball crack of impulse voltage generator, the surge voltage waveform is applied to the thyristor two ends.
3. method as claimed in claim 2, it is characterized in that described test platform by being connected,, obtain synchronous working signal for test platform work by alternating current filter with the AC side power supply, send trigger pulse by built-in system to the circuit board TE of thyristor level, and accept its repayment pulse.
4. method as claimed in claim 3, it is characterized in that described thyristor level test product comprises damping circuit, the equal hydraulic circuit of direct current, thyristor and thyristor electronic equipment TE, damping circuit comprises damping resistance and damping capacitor, and the equal hydraulic circuit of direct current comprises two direct current equalizing resistance series connection.
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| CN201010512418.2A CN102012481B (en) | 2010-10-12 | 2010-10-12 | Thyristor level test method for novel converter valve module |
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| CN201010512418.2A CN102012481B (en) | 2010-10-12 | 2010-10-12 | Thyristor level test method for novel converter valve module |
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Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103149925A (en) * | 2013-03-01 | 2013-06-12 | 南京南瑞继保电气有限公司 | Dynamic simulation experimental platform of thyristor trigger control |
| CN103323717A (en) * | 2013-06-26 | 2013-09-25 | 国家电网公司 | Direct-current transmission valve testing system |
| 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 |
| CN103926524A (en) * | 2014-04-21 | 2014-07-16 | 许继电气股份有限公司 | Method for testing converter valve control device in low-voltage control mode |
| CN104459396A (en) * | 2014-12-04 | 2015-03-25 | 国家电网公司 | Converter valve voltage-sharing testing instrument |
| CN104991211A (en) * | 2015-07-06 | 2015-10-21 | 国家电网公司 | High-voltage direct-current power transmission light-controlled converter valve TVM plate automatic test equipment |
| CN106093622A (en) * | 2016-05-30 | 2016-11-09 | 中国西电电气股份有限公司 | Super, extra-high voltage direct-current transmission TCU structure converter valve components IGCT level pilot system |
| CN106980077A (en) * | 2016-01-18 | 2017-07-25 | 株洲南车时代电气股份有限公司 | A kind of Thyristors in series pairing test circuit and method |
| CN107037288A (en) * | 2017-04-28 | 2017-08-11 | 南京南瑞继保电气有限公司 | A kind of damping module test system and method for testing |
| CN107765118A (en) * | 2017-09-22 | 2018-03-06 | 许继电气股份有限公司 | A kind of test device and method of light-operated converter valve recovery protection firing unit |
| CN108957279A (en) * | 2018-09-05 | 2018-12-07 | 安徽省华腾农业科技有限公司 | The measurement method of thyristor impulse voltage generator impact thyristor |
| CN109613418A (en) * | 2019-01-02 | 2019-04-12 | 西安西电电力系统有限公司 | Thyristor valves high potential board test device and test method |
| CN109884494A (en) * | 2019-04-08 | 2019-06-14 | 西安交通大学 | A kind of high-pressure high-power thyristor leakage current test macro and its method |
| CN109917264A (en) * | 2019-03-29 | 2019-06-21 | 国网上海市电力公司 | A kind of converter valve thyristor level short-circuit test device and method |
| CN110927551A (en) * | 2019-12-03 | 2020-03-27 | 西安西电电力系统有限公司 | Short-circuit current test loop of thyristor converter valve component |
| CN111562494A (en) * | 2020-06-05 | 2020-08-21 | 全球能源互联网研究院有限公司 | Test circuit and method for testing on-off characteristics of converter valve |
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| CN116381386A (en) * | 2023-04-04 | 2023-07-04 | 北京龙腾蓝天科技有限公司 | Comprehensive testing system and method for universal high-voltage direct-current transmission converter valve |
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| CN116381386B (en) * | 2023-04-04 | 2024-04-02 | 北京龙腾蓝天科技有限公司 | Comprehensive testing system and method for universal high-voltage direct-current transmission converter valve |
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