CN109149914A - Complementary pulse method of valve-based electronic equipment - Google Patents
Complementary pulse method of valve-based electronic equipment Download PDFInfo
- Publication number
- CN109149914A CN109149914A CN201810744098.XA CN201810744098A CN109149914A CN 109149914 A CN109149914 A CN 109149914A CN 201810744098 A CN201810744098 A CN 201810744098A CN 109149914 A CN109149914 A CN 109149914A
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- pulse
- transmission system
- valve
- reissues
- trigger
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000000295 complement effect Effects 0.000 title abstract 6
- 230000005540 biological transmission Effects 0.000 claims abstract description 35
- 230000000630 rising effect Effects 0.000 claims description 3
- 210000001367 artery Anatomy 0.000 description 6
- 238000004080 punching Methods 0.000 description 6
- 210000003462 vein Anatomy 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000002411 adverse Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000541 pulsatile effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
- H02M1/088—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters for the simultaneous control of series or parallel connected semiconductor devices
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention discloses a complementary pulse method of valve-based electronic equipment, which comprises the steps of generating trigger pulses according to a trigger control signal sent by a back-to-back direct-current power transmission system and according to a first set interval; when any one converter valve is detected to be non-conductive and the voltage of the non-conductive converter valve is detected to be a forward voltage, generating a first complementary pulse for the non-conductive converter valve in the effective period of the trigger pulse; and when the back-to-back direct current transmission system carries out direct current unlocking and establishes current, generating a second complementary pulse according to a second set interval in the effective period of each trigger pulse. According to the method, a second complementary sending pulse is generated according to a second set interval in an effective period of each trigger pulse, the pertinence of the complementary sending pulse is improved, the problem that the time for unlocking the back-to-back direct current transmission system to establish current is random and uncontrollable is effectively solved, the unlocking success rate of the back-to-back direct current transmission system is improved, and a current loop is quickly established.
Description
Technical field
Pulse method is reissued the present invention relates to direct current transmission and distribution technical field more particularly to a kind of valve base electronic device.
Background technique
In back-to-back DC power transmission system, since thyristor valves turn-on condition is that forward voltage is born simultaneously in valve both ends
And receive trigger pulse, when electric current be lower than valve maintenance electric current when, thyristor will normal turn-off, back-to-back DC power transmission system
System is in rigid unlock, without normal continuous current circuit.In DC current establishment stage, for current path to be formed, need same
When triggering rectification side 4 valve arm and inverter side 4 valve arm, valve base electronic device trigger converter valve when be short pulse, just
Normal pulse-triggered timing is not able to satisfy conditions above, and the supplements for relying primarily on valve base electronic device rushes Mechanism establishing electric current and returns
Road.
It is that, when positive pressure is greater than threshold value on valve, delay is certain that valve base electronic device, which commonly reissues pulse strategy, at present
Time (such as 30 microseconds) carries out the valve being not turned on to reissue a trigger pulse.In addition to the instruction of normal pulsatile once, every 120
4 subpulses are at most reissued in the triggering period of degree；For reissuing the change of current valve deblocking under pulse strategy at present, although Y bridge or D
Bridge always respectively with the presence of the region of the trigger pulse overlapping of 2 converter valves, that is, meets the condition simultaneously turned on, but usually in Y1 valve
Before the front half section of trigger pulse, i.e. Y2 valve trigger pulse issue, valve base electronic device may triggered 5 times all arteries and veins
Punching, when Y2 valve starts triggering, Y1 valve is no longer open-minded, therefore does not have current loop, and equally, front half section of the Y2 valve in FCS has been mended
4 trigger pulses are distributed, Y3 valve just starts to trigger, and continues to repeat above procedure.Therefore, existing valve base electronic device is common
It reissues pulse strategy trigger pulse and reissues and do not know constantly, it is uncontrollable to establish current time, has biggish randomness, can not be fast
Current loop is found in run-up, forms current path.
Summary of the invention
Pulse method is reissued the object of the present invention is to provide a kind of valve base electronic device, can be efficiently solved back-to-back
The time that electric current is established in DC transmission system unlock is uncontrollable at random, improves back-to-back DC power transmission system and unlocks success rate, fastly
Current loop is found in run-up.
Pulse method is reissued the embodiment of the invention provides a kind of valve base electronic device, is used for back-to-back DC power transmission system
Current course is established in system unlock, comprising:
According to the Trig control signal that back-to-back DC power transmission system issues, triggering arteries and veins is generated according to the first setting interval
Punching；
When detecting that any one of converter valve does not turn on and the voltage of the converter valve not turned on is forward voltage
When, first is generated to the converter valve not turned within the effective period of the trigger pulse and reissues pulse；
When the back-to-back DC power transmission system carries out direct current unlock, when establishing electric current, in each trigger pulse
In effective period, second is generated according to the second setting interval and reissues pulse.
Preferably, the second setting interval is equal with the first setting interval；Described second setting interval,
The first setting interval is respectively less than the effective period of the trigger pulse.
Preferably, the effective period of the trigger pulse is 120 degree；30 degree are divided between first setting；Described second
30 degree are divided between setting.
Preferably, described second reissue pulse reissued within the effective period of the trigger pulse number be 3 times, it is right respectively
Answer the initial time of 30 degree, 60 degree and 90 degree of the trigger pulse.
Preferably, the Trig control signal issued according to back-to-back DC power transmission system is spaced according to the first setting
Trigger pulse is generated, is specifically included:
The Trig control signal is issued according to the back-to-back DC power transmission system, and in the Trig control signal
The trigger pulse is generated when rising edge.
Compared with the existing technology, a kind of valve base electronic device provided in an embodiment of the present invention reissues the beneficial of pulse method
Effect is: the Trig control signal issued according to back-to-back DC power transmission system, generates triggering arteries and veins according to the first setting interval
Punching；When detecting that any one of converter valve does not turn on and the voltage of the converter valve not turned on is forward voltage,
First is generated to the converter valve not turned in the effective period of the trigger pulse and reissues pulse；When the back-to-back DC
Transmission system carries out direct current unlock, when establishing electric current, within the effective period of each trigger pulse, according between the second setting
Pulse is reissued every generation second.This method according to the second setting by being spaced within the effective period of each trigger pulse
It generates second and reissues pulse, improve the specific aim for reissuing pulse, efficiently solve back-to-back DC power transmission system unlock and establish electricity
The time of stream is uncontrollable at random, improves back-to-back DC power transmission system and unlocks success rate, quickly establishes current loop.
Detailed description of the invention
Fig. 1 is a kind of back-to-back DC power transmission for reissuing pulse method of valve base electronic device provided in an embodiment of the present invention
12 pulse conversion valve schematic diagrames；
Fig. 2 is a kind of flow chart for reissuing pulse method of valve base electronic device provided in an embodiment of the present invention；
Fig. 3 is a kind of back-to-back DC system for reissuing pulse method of valve base electronic device provided in an embodiment of the present invention
Pulse schematic diagram is reissued in unlock.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, it is that a kind of valve base electronic device provided in an embodiment of the present invention reissues leaning against for pulse method
Carry on the back 12 pulse conversion valve schematic diagram of direct current transportation, comprising:
12 converter valves of rectification side and adverse current side, the rectification side and adverse current side are made of Y bridge and D bridge；
Since thyristor valves turn-on condition is the converter valve both ends receiving forward voltage and receives the touching
Pulse is sent out, is only just turned off when the electric current for flowing through the converter valve is zero；The back-to-back DC power transmission system is unlocked just
When, without normal continuous current circuit, in DC current establishment stage, for current path to be formed, need to trigger simultaneously described
4 valve arm (two of Y bridge of 4 valve arm (two valve arm of Y bridge and two valve arm of D bridge) and the inverter side of rectification side
Two valve arm of valve arm and D bridge).
Referring to Fig. 2, it is a kind of process for reissuing pulse method of valve base electronic device provided in an embodiment of the present invention
Figure, the valve base electronic device reissue pulse method, comprising:
S100: the Trig control signal issued according to back-to-back DC power transmission system generates touching according to the first setting interval
Send out pulse；
S200: when detecting that any one of converter valve does not turn on and the voltage of the converter valve not turned on is forward direction
When voltage, first is generated to the converter valve not turned within the effective period of the trigger pulse and reissues pulse；
S300: when the back-to-back DC power transmission system carries out direct current unlock, when establishing electric current, in each triggering arteries and veins
In the effective period of punching, second is generated according to the second setting interval and reissues pulse.
In an alternative embodiment, the second setting interval is equal with the first setting interval；It is described
The second setting interval, described first setting interval be respectively less than the effective period of the trigger pulse.
In an alternative embodiment, the effective period of the trigger pulse is 120 degree；It is divided between first setting
30 degree；30 degree are divided between second setting.
In an alternative embodiment, it described second reissues pulse and is reissued within the effective period of the trigger pulse time
Number is 3 times, respectively corresponds the initial time of 30 degree, 60 degree and 90 degree of the trigger pulse；
In an alternative embodiment, S100: the triggering issued according to back-to-back DC power transmission system controls letter
Number, trigger pulse is generated according to the first setting interval, is specifically included:
The Trig control signal is issued according to the back-to-back DC power transmission system, and in the Trig control signal
The trigger pulse is generated when rising edge.
Referring to Fig. 3, it is that a kind of valve base electronic device provided in an embodiment of the present invention reissues leaning against for pulse method
Pulse schematic diagram is reissued in back direct current system unlock, comprising:
According to the Trig control signal that back-to-back DC power transmission system issues, triggering arteries and veins is generated according to the first setting interval
Punching；When detecting that any one of converter valve does not turn on and the voltage of the converter valve not turned on is forward voltage,
First is generated to the converter valve not turned in the effective period of the trigger pulse and reissues pulse, such as the fine dotted line in Fig. 3,
4 subpulses are at most reissued within a trigger pulse validity period, realize the conducting of 4 valves；
When the back-to-back DC power transmission system carries out direct current unlock, when establishing electric current, in each trigger pulse
In effective period, second is generated according to the second setting interval and reissues pulse, such as the thick dashed line in Fig. 3；
Described second reissue pulse reissued within the effective period of the trigger pulse number be 3 times, respectively correspond 30 degree,
The initial time of 60 degree and 90 degree of the trigger pulse.
Compared with the existing technology, a kind of valve base electronic device provided in an embodiment of the present invention reissues the beneficial of pulse method
Effect is: the Trig control signal issued according to back-to-back DC power transmission system, generates triggering arteries and veins according to the first setting interval
Punching；When detecting that any one of converter valve does not turn on and the voltage of the converter valve not turned on is forward voltage,
First is generated to the converter valve not turned in the effective period of the trigger pulse and reissues pulse；When the back-to-back DC
Transmission system carries out direct current unlock, when establishing electric current, within the effective period of each trigger pulse, according between the second setting
Pulse is reissued every generation second.This method according to the second setting by being spaced within the effective period of each trigger pulse
It generates second and reissues pulse, improve the specific aim for reissuing pulse, efficiently solve back-to-back DC power transmission system unlock and establish electricity
The time of stream is uncontrollable at random, improves back-to-back DC power transmission system and unlocks success rate, quickly establishes current loop.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (5)
1. a kind of valve base electronic device reissues pulse method, current course is established for back-to-back DC power transmission system unlock,
It is characterised by comprising:
According to the Trig control signal that back-to-back DC power transmission system issues, trigger pulse is generated according to the first setting interval；
When detecting that any one of converter valve does not turn on and the voltage of the converter valve not turned on is forward voltage,
First is generated to the converter valve not turned in the effective period of the trigger pulse and reissues pulse；
When the back-to-back DC power transmission system carries out direct current unlock, when establishing electric current, in the effective of each trigger pulse
In period, second is generated according to the second setting interval and reissues pulse.
2. valve base electronic device as described in claim 1 reissues pulse method, which is characterized in that between second setting
Every equal with the first setting interval；The second setting interval, the first setting interval respectively less than touching
Send out the effective period of pulse.
3. valve base electronic device as claimed in claim 1 or 2 reissues pulse method, which is characterized in that the trigger pulse
Effective period be 120 degree；30 degree are divided between first setting；30 degree are divided between second setting.
4. valve base electronic device as described in claim 1 reissues pulse method, which is characterized in that described second reissues pulse
It is 3 times that number is reissued within the effective period of the trigger pulse, respectively corresponds 30 degree, 60 degree and 90 degree of the trigger pulse
Initial time.
5. valve base electronic device as described in claim 1 reissues pulse method, which is characterized in that the basis is straight back-to-back
The Trig control signal that transmission system issues is flowed, trigger pulse is generated according to the first setting interval, specifically includes:
The Trig control signal is issued according to the back-to-back DC power transmission system, and in the rising of the Trig control signal
Along when generate the trigger pulse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810744098.XA CN109149914A (en) | 2018-07-09 | 2018-07-09 | Complementary pulse method of valve-based electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810744098.XA CN109149914A (en) | 2018-07-09 | 2018-07-09 | Complementary pulse method of valve-based electronic equipment |
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| Publication Number | Publication Date |
|---|---|
| CN109149914A true CN109149914A (en) | 2019-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810744098.XA Pending CN109149914A (en) | 2018-07-09 | 2018-07-09 | Complementary pulse method of valve-based electronic equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113472222A (en) * | 2021-05-26 | 2021-10-01 | 南方电网科学研究院有限责任公司 | Complementary pulse control method for thyristor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101958638A (en) * | 2010-09-20 | 2011-01-26 | 中国电力科学研究院 | Novel method for implementing current interruption protection of direct-current converter valve thyristor |
| CN104038034A (en) * | 2014-06-20 | 2014-09-10 | 中国西电电气股份有限公司 | Control and monitor method of silicon controlled rectifier converter valve for extreme high voltage direct current power transmission |
| CN107171353A (en) * | 2017-06-15 | 2017-09-15 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | A kind of light-operated valve control method for preventing that electric current can not be set up during direct current unblock |
-
2018
- 2018-07-09 CN CN201810744098.XA patent/CN109149914A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101958638A (en) * | 2010-09-20 | 2011-01-26 | 中国电力科学研究院 | Novel method for implementing current interruption protection of direct-current converter valve thyristor |
| CN104038034A (en) * | 2014-06-20 | 2014-09-10 | 中国西电电气股份有限公司 | Control and monitor method of silicon controlled rectifier converter valve for extreme high voltage direct current power transmission |
| CN107171353A (en) * | 2017-06-15 | 2017-09-15 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | A kind of light-operated valve control method for preventing that electric current can not be set up during direct current unblock |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113472222A (en) * | 2021-05-26 | 2021-10-01 | 南方电网科学研究院有限责任公司 | Complementary pulse control method for thyristor |
| CN113472222B (en) * | 2021-05-26 | 2022-06-14 | 南方电网科学研究院有限责任公司 | Complementary pulse control method for thyristor |
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Application publication date: 20190104 |