CN203310971U - Extra-high-voltage direct-current-transmission light-operated converter valve type test valve control device - Google Patents
Extra-high-voltage direct-current-transmission light-operated converter valve type test valve control device Download PDFInfo
- Publication number
- CN203310971U CN203310971U CN2013203829489U CN201320382948U CN203310971U CN 203310971 U CN203310971 U CN 203310971U CN 2013203829489 U CN2013203829489 U CN 2013203829489U CN 201320382948 U CN201320382948 U CN 201320382948U CN 203310971 U CN203310971 U CN 203310971U
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- converter valve
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- laser emission
- light receiving
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Abstract
The utility model provides an extra-high-voltage direct-current-transmission light-operated converter valve type test valve control device. 16 paths of return light pulse interfaces are provided for a converter valve thyristor voltage detection plate so as to monitor a converter valve state. And a three-cycle fault current test synchronization problem can be solved. 2 paths of light output channels are provided for a converter valve inversion recovery unit so as to control inversion recovery protection. 4 paths of laser triggering channels are provided for the converter valve and are used for a direct light triggering thyristor so that a problem that synthesis loop start is failed because a test object converter valve voltage is low and there is no forward voltage return in a synthesis loop starting stage can be solved. A control light pulse interface is provided for a synthesis test loop control system. A modulation pulse control signal and a level pulse control signal can be flexibly accepted. Switch of any signal interface cabinet is not needed. A 220V alternating current or a storage battery is used to provide power. A modularization design and box packaging are used. The device is maintenance-free and portable.
Description
[technical field]
The utility model relates to the light-operated converter valve type approval test of a kind of extra-high voltage direct-current transmission control valve device.
[background technology]
The unloading phase of synthetic test loop, due to brownout, cause voltage detection unit on the thyristor level to get the energy deficiency, without positive voltage repayment signal, if according to the triggered as normal sequential, the converter valve control system can not send trigger pip, can't start synthetic test loop.
[utility model content]
The utility model provides the light-operated converter valve type approval test of a kind of extra-high voltage direct-current transmission control valve device, and the unloading phase of solving synthesis loop, test product converter valve brownout, cause synthesis loop to start failed problem without the forward voltage repayment.
For solving above technical matters, the utility model by the following technical solutions:
The light-operated converter valve type approval test of a kind of extra-high voltage direct-current transmission control valve device, it is characterized in that: comprise programmable logic chip, the input end of described programmable logic chip is connected with 16 road light receiving units and controls light receiving unit, the input end of described 16 road light receiving units is connected to monitor the state of converter valve with converter valve thyristor, described control light receiving unit directly is connected with programmable logic chip without any switching, and the input end of controlling light receiving unit is connected to accept the gating pulse that control system is sent with the synthetic test loop control system, the output terminal of described programmable logic chip is connected with four road laser emission channels, it is laser emission channel 1, laser emission channel 2, laser emission channel 3 and laser emission channel 4, the output terminal of described four road laser emission channels is connected with converter valve, wherein, laser emission channel 1 and laser emission channel 2 only receive positive voltage repayment signal to trigger converter valve, described laser emission channel 3 and laser emission channel 4 trigger converter valve by receiving the synthetic test loop control signal.
As preferred embodiment of the present utility model; the output terminal of described programmable logic chip also is connected with two-way reverse recovery light transmission channel, and the output terminal of this two-way reverse recovery light transmission channel is connected with converter valve recovery protection firing unit and begins operating in correct time range with the recovery protection firing unit that guarantees converter valve.
As preferred embodiment of the present utility model, each road in described 16 road light receiving units is the light receiving diode of 660nm.
As preferred embodiment of the present utility model, described control light receiving unit is the light receiving diode of 820nm.
As preferred embodiment of the present utility model, each road in described two-way reverse recovery light transmission channel is the light receiving diode of 850nm.
Compared with prior art, the utility model control system has the following advantages at least: the unloading phase of synthetic test loop due to brownout, cause voltage detection unit on the thyristor level to get the energy deficiency, without positive voltage repayment signal (light-receiving 1-16), if according to the triggered as normal sequential, the converter valve control system can not send trigger pip, for head it off, the utility model is divided into two groups by the control system trigger port and is respectively laser emission channel 1-2 and laser emission channel 3-4, wherein laser emission channel 3-4 does not need to receive positive voltage signal, only need to control light signal by receiving synthesis loop, just can carry out direct light triggering, described laser emission channel 1 and laser emission channel 2 only receive positive voltage repayment signal to trigger converter valve, like this, have well solved the synthetic test loop starting problem.
[accompanying drawing explanation]
Fig. 1 is the logic diagram of the utility model control system;
Wherein: Laser emission 1-4 is 940nm Laser emission diode, and light-receiving 1-16 is the 660nm light receiving diode, and controlling light-receiving is the 820nm light receiving diode, and reverse recovery light is emitted as the 850nm light receiving diode, and programmable logic chip is CPLD.
[embodiment]
Below in conjunction with accompanying drawing, the utility model is described in further detail.Refer to shown in Figure 1.The light-operated converter valve type approval test of a kind of extra-high voltage direct-current transmission control valve device, comprise programmable logic chip, the input end of described programmable logic chip is connected with 16 road light receiving units and controls light receiving unit, the input end of described 16 road light receiving units is connected to monitor the state of converter valve with converter valve thyristor, described control light receiving unit directly is connected with programmable logic chip without any switching, and the gating pulse that the input end of controlling light receiving unit and synthetic test loop control system are connected and send with receiving control system, the output terminal of described programmable logic chip is connected with four road laser emission channels and two-way reverse recovery light transmission channel, described four road laser emission channels are respectively laser emission channel 1, laser emission channel 2, laser emission channel 3 and laser emission channel 4, the output terminal of described four road laser emission channels is connected with converter valve, wherein, laser emission channel 1 and laser emission channel 2 only receive positive voltage repayment signal to trigger converter valve, described laser emission channel 3 and laser emission channel 4 trigger converter valve by receiving the synthetic test loop control signal, the output terminal of described two-way reverse recovery light transmission channel is connected with converter valve recovery protection firing unit and begins operating in correct time range with the recovery protection firing unit that guarantees converter valve.
The unloading phase of synthetic test loop due to brownout, cause voltage detection unit on the thyristor level to get the energy deficiency, without positive voltage repayment signal (light-receiving 1-16), if according to the triggered as normal sequential, the converter valve control system can not send trigger pip, for head it off, the utility model is divided into two groups by the control system trigger port and is respectively laser emission channel 1-2 and laser emission channel 3-4, wherein laser emission channel 3-4 does not need to receive positive voltage signal, only need to control light signal by receiving synthesis loop, just can carry out direct light triggering; Described laser emission channel 1 and laser emission channel 2 only receive positive voltage repayment signal to trigger converter valve, like this, have well solved the synthetic test loop starting problem.
Synthetic test loop, when carrying out three cycle fault current tests, is controlled light signal long for effective, if use the triggered as normal logic, latter two cycle thyristor can not be triggered.Control system is used and is supplemented pulse function, to control light signal long when effective when synthetic test loop, as long as receive thyristor positive voltage repayment signal, just by laser emission channel 1-2, supplement trigger action immediately, guaranteed three cycle fault current test waveform synchronism stabilities.
Synthetic test loop is when carrying out the recovery protection firing test; to in being down to the set time after 0, thyristor current flows apply surge voltage; now converter valve recovery protection firing unit should send the protection trigger pulse; this set time is provided by the converter valve control system; after control system receives thyristor negative voltage repayment signal (light-receiving 1-16); the light signal of set time length will be sent by reverse recovery light emission 1-2, to open converter valve reverse recovery function.
Claims (5)
1. the light-operated converter valve type approval test of extra-high voltage direct-current transmission control valve device, it is characterized in that: comprise programmable logic chip, the input end of described programmable logic chip is connected with 16 road light receiving units and controls light receiving unit, the input end of described 16 road light receiving units is connected to monitor the state of converter valve with converter valve thyristor, described control light receiving unit directly is connected with programmable logic chip without any switching, and the input end of controlling light receiving unit is connected to accept the gating pulse that control system is sent with the synthetic test loop control system, the output terminal of described programmable logic chip is connected with four road laser emission channels, it is laser emission channel 1, laser emission channel 2, laser emission channel 3 and laser emission channel 4, the output terminal of described four road laser emission channels is connected with converter valve, wherein, laser emission channel 1 and laser emission channel 2 only receive positive voltage repayment signal to trigger converter valve, described laser emission channel 3 and laser emission channel 4 trigger converter valve by receiving the synthetic test loop control signal.
2. the light-operated converter valve type approval test of a kind of extra-high voltage direct-current transmission as claimed in claim 1 control valve device; it is characterized in that: the output terminal of described programmable logic chip also is connected with two-way reverse recovery light transmission channel, and the output terminal of this two-way reverse recovery light transmission channel is connected with converter valve recovery protection firing unit and begins operating in correct time range with the recovery protection firing unit that guarantees converter valve.
3. the light-operated converter valve type approval test of a kind of extra-high voltage direct-current transmission as claimed in claim 1 control valve device, it is characterized in that: each road in described 16 road light receiving units is the light receiving diode of 660nm.
4. the light-operated converter valve type approval test of a kind of extra-high voltage direct-current transmission as claimed in claim 1 control valve device, it is characterized in that: described control light receiving unit is the light receiving diode of 820nm.
5. the light-operated converter valve type approval test of a kind of extra-high voltage direct-current transmission as claimed in claim 2 control valve device, it is characterized in that: each road in described two-way reverse recovery light transmission channel is the light receiving diode of 850nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203829489U CN203310971U (en) | 2013-06-28 | 2013-06-28 | Extra-high-voltage direct-current-transmission light-operated converter valve type test valve control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203829489U CN203310971U (en) | 2013-06-28 | 2013-06-28 | Extra-high-voltage direct-current-transmission light-operated converter valve type test valve control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203310971U true CN203310971U (en) | 2013-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203829489U Expired - Lifetime CN203310971U (en) | 2013-06-28 | 2013-06-28 | Extra-high-voltage direct-current-transmission light-operated converter valve type test valve control device |
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| Country | Link |
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| CN (1) | CN203310971U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106647322A (en) * | 2015-10-29 | 2017-05-10 | 全球能源互联网研究院 | Interface signal simulation module of high-voltage DC power transmission valve control system |
| CN106646207A (en) * | 2015-10-29 | 2017-05-10 | 全球能源互联网研究院 | Platform and method for testing reliability of DC transmission converter valve optical coupling module receiving circuit |
| CN106646005A (en) * | 2015-10-29 | 2017-05-10 | 全球能源互联网研究院 | Reliability test platform for emission circuits of optical coupling module of converter valve and test method |
-
2013
- 2013-06-28 CN CN2013203829489U patent/CN203310971U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106647322A (en) * | 2015-10-29 | 2017-05-10 | 全球能源互联网研究院 | Interface signal simulation module of high-voltage DC power transmission valve control system |
| CN106646207A (en) * | 2015-10-29 | 2017-05-10 | 全球能源互联网研究院 | Platform and method for testing reliability of DC transmission converter valve optical coupling module receiving circuit |
| CN106646005A (en) * | 2015-10-29 | 2017-05-10 | 全球能源互联网研究院 | Reliability test platform for emission circuits of optical coupling module of converter valve and test method |
| CN106647322B (en) * | 2015-10-29 | 2019-09-06 | 全球能源互联网研究院 | A kind of interface signal analog module of voltage direct-current transmission valve control system |
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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: 20131127 |
|
| CX01 | Expiry of patent term |