CN101764410B - 66kV optically-controlled water-cooled thyristor trigger circuit - Google Patents
66kV optically-controlled water-cooled thyristor trigger circuit Download PDFInfo
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- CN101764410B CN101764410B CN200910220692XA CN200910220692A CN101764410B CN 101764410 B CN101764410 B CN 101764410B CN 200910220692X A CN200910220692X A CN 200910220692XA CN 200910220692 A CN200910220692 A CN 200910220692A CN 101764410 B CN101764410 B CN 101764410B
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- 238000002955 isolation Methods 0.000 claims abstract description 6
- 239000013307 optical fiber Substances 0.000 claims abstract description 6
- 230000003321 amplification Effects 0.000 claims abstract description 4
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 4
- 230000000903 blocking effect Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 2
- 238000003786 synthesis reaction Methods 0.000 abstract 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000036039 immunity Effects 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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Abstract
The invention relates to a water-cooled radiating light-operated thyristor valve group trigger circuit with a voltage level of 66kV or above, which adopts a laser trigger signal to trigger a light-operated thyristor and comprises a photoelectric isolation circuit, a pulse circuit 1, a pulse circuit 2, a synthesis circuit and a drive circuit, wherein a trigger pulse input signal converts an optical signal into an electric signal through the photoelectric isolation circuit, is subjected to isolation amplification, simultaneously outputs two paths of pulse signals with different fixed widths and different amplitudes through the pulse circuit 1 and the pulse circuit 2, is sent into the synthesis circuit after being shaped to become a strong trigger signal, and then triggers the light-operated thyristor through a trigger optical fiber. The trigger circuit can meet the requirement of large voltage class, and has the advantages of good stability, strong anti-interference performance, high reliability and long service life.
Description
Technical field
The present invention relates to the circuits for triggering of the photo-thyristor valve group of a kind of 66kV and above electric pressure water-cooling, be applied to electric power, metallurgy and all use photo thyristors other field as core devices.
Background technology
Photo thyristor is to use valve element the most widely at present; Trigger angle through the control photo thyristor can be regulated impedance continuously; Ability to transmit electricity that can enhanced system; Improve the stability of electric power system, have power oscillation damping and suppress functions such as sub-synchronous oscillation, compensation power factor.Photo-thyristor valve body will bear high voltage and big electric current usually, needs to adopt the forward and reverse parallel connection of a plurality of thyristors, and series connection realizes again.The triggering of thyristor valve group is the important component part of dynamic reactive compensation device in the electric power system.
The triggering of thyristor valve body, trigger protection circuit are the vital circuit of dynamic reactive compensation device, in order to ensure the reliability of circuit triggers, can high pressure resistant people also take a lot of methods and measure again, could ensure the safe operation of thyristor valve.
The thyristor valve group electric pressure of present domestic application is all below 35kV; And all be to adopt the signal of telecommunication to trigger; The impulse circuit that triggers is one; Triggering for the thyristor of big electric pressure also has certain restriction, to the stability of electric power system, reliability, useful life etc. also needing further to improve.
Summary of the invention
For solving prior art problems, the purpose of this invention is to provide the photo thyristor circuits for triggering of the water-cooling of a kind of 66kV and above electric pressure, can satisfy the requirement of big electric pressure, and good stability, strong interference immunity, reliability is high, long service life.
For realizing above-mentioned purpose, the present invention realizes through following technical scheme:
The light-operated water-cooled thyristor gating circuit of 66kV, this circuit application adopt laser trigger signal to trigger photo thyristor in 66kV and above electric pressure; Comprise photoelectric isolating circuit, impulse circuit 1, impulse circuit 2, combiner circuit, drive circuit; The trigger impulse input signal converts light signal into the signal of telecommunication and process isolation amplification, simultaneously through impulse circuit 1 and impulse circuit 2 through photoelectric isolating circuit; The pulse signal of different Fixed widths of output two-way and different amplitudes; Send into combiner circuit after the shaping, become a strong triggering signal, trigger photo thyristor through triggering optical fiber then.
Described circuits for triggering also comprise failure detector circuit, and it comprises laser tube fault detect, pulse detection, pulse blocking, and failure detector circuit one end is through the output of comparator connection drive circuit, and the other end connects photoelectric isolating circuit; Failure detector circuit also connects the combiner circuit input, is used for blocking trigger impulse.
Compared with prior art, the invention has the beneficial effects as follows:
1) trigger impulse input letter is by the impulse circuit output pulse triggering signal of two parallel connections, and synthetic strong triggering signal can satisfy the triggering of different photo thyristor parameters, adopts laser trigger signal to accomplish the triggering to light-operated water-cooled thyristor.
2) has fault detection capability; For guaranteeing the reliably working of photo thyristor trigger board; Avoid the fault of SVC compensation arrangement thyristor valve group; This light-operated circuits for triggering plate has disposed " failure detector circuit ", and it comprises laser head fault detect, pulse-detecting circuit (losing the pulse fault secure circuit), trigger impulse lockout circuit.When the triggering part circuit is out of order, can block trigger impulse timely, guarantee whole SVC bucking-out system because certain part is damaged, can not cause the damage of related part, make every part of system can both reliability service.
3) have higher job stability and reliability, it is low to trigger energy consumption, long service life; Circuit power is stable, and communication, transmission signal, trigger impulse each several part signal all adopt the optical fiber transmission, the signal strong interference immunity.
Description of drawings
Fig. 1 is the structured flowchart of the light-operated water-cooled thyristor gating circuit of 66kV;
Fig. 2 is the structure diagram of the embodiment of the light-operated water-cooled thyristor gating circuit of 66kV.
Embodiment
See Fig. 1, the light-operated water-cooled thyristor gating circuit of 66kV, this circuit application is in 66kV and above electric pressure; Adopt laser trigger signal to trigger photo thyristor, comprise photoelectric isolating circuit, impulse circuit 1, impulse circuit 2, combiner circuit, drive circuit, failure detector circuit, the trigger impulse input signal passes through photoelectric isolating circuit; Convert light signal into the signal of telecommunication and process isolation amplification; Through impulse circuit 1 and impulse circuit 2, the pulse signal of different Fixed widths of output two-way and different amplitudes is sent into combiner circuit after the shaping simultaneously; Become a strong triggering signal, trigger photo thyristor through triggering optical fiber then.
Described circuits for triggering also comprise failure detector circuit, and it comprises laser tube fault detect, pulse detection, pulse blocking, and failure detector circuit one end is through the output of comparator connection drive circuit, and the other end connects photoelectric isolating circuit; Failure detector circuit also connects the combiner circuit input, is used for blocking trigger impulse.
See Fig. 2, the photo thyristor light triggering signal that control cubicle sends, become the signal of telecommunication to the trigger impulse input optical signal through opto-electronic conversion after; Timer with the rising edge starting impulse circuit of trigger impulse; Deliver to the reverse input end of the B pin of U13A, two monostable timers of U13B respectively, the monostable timer U13A in the impulse circuit 1 charges to capacitor C 20 through resistance R 13 current limlitings; Confirming time of timer by RC, promptly is the strong pulse duration that triggers of decision.In like manner the monostable timer U13B in the impulse circuit 2 is through the time of resistance R 14 with capacitor C 23 decision timers; Promptly be decision trigger impulse berm width, again through synthesizing circuit with the stack of two signals through the OC door, i.e. circuit U 14A, U14B and U14C, U14D; Pulse 1 and the strong trigger impulse that triggers of pulse 2 synthetic bands; Deliver to drive circuit, come the driving laser transmitting tube, trigger photo thyristor through optical fiber at last.This circuit can self-checking circuit, and when LASER Discharge Tube had damage, failure detector circuit can seal pulse automatically, is furnished with the pulse detection of losing function simultaneously.
The present invention uses two monostable integrated circuits regularly, with the strong trigger impulse that triggers of synthetic one road band of two-way pulse, can satisfy the requirement of 66kV and above electric pressure.
Claims (1)
1.66kV light-operated water-cooled thyristor gating circuit is characterized in that, this circuit application is in 66kV and above electric pressure; Adopt laser trigger signal to trigger photo thyristor, comprise photoelectric isolating circuit, impulse circuit 1, impulse circuit 2, combiner circuit, drive circuit, the trigger impulse input signal passes through photoelectric isolating circuit; Convert light signal into the signal of telecommunication and process isolation amplification; Through impulse circuit 1 and impulse circuit 2, the pulse signal of different Fixed widths of output two-way and different amplitudes is sent into combiner circuit after the shaping simultaneously; Become a triggering signal that has strong triggering, trigger photo thyristor through triggering optical fiber then;
Described circuits for triggering also comprise failure detector circuit, and it comprises laser tube fault detect, pulse detection, pulse blocking, and failure detector circuit one end is through the output of comparator connection drive circuit, and the other end connects photoelectric isolating circuit; Failure detector circuit also connects the combiner circuit input, is used for blocking trigger impulse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910220692XA CN101764410B (en) | 2009-12-11 | 2009-12-11 | 66kV optically-controlled water-cooled thyristor trigger circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910220692XA CN101764410B (en) | 2009-12-11 | 2009-12-11 | 66kV optically-controlled water-cooled thyristor trigger circuit |
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| Publication Number | Publication Date |
|---|---|
| CN101764410A CN101764410A (en) | 2010-06-30 |
| CN101764410B true CN101764410B (en) | 2012-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910220692XA Active CN101764410B (en) | 2009-12-11 | 2009-12-11 | 66kV optically-controlled water-cooled thyristor trigger circuit |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102820874B (en) * | 2012-07-30 | 2016-01-20 | 国家电网公司 | A kind of circuits for triggering for photo thyristor |
| CN103151905B (en) * | 2013-02-05 | 2017-10-03 | 九江赛晶科技股份有限公司 | A kind of many IGCT synchronizable optical pulsed triggering circuits |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2291746Y (en) * | 1997-01-10 | 1998-09-16 | 李运昌 | Driving power supply for electromagnetic oscillation |
| CN1384593A (en) * | 2002-06-07 | 2002-12-11 | 清华大学 | Bridge arm through protecting system for 6KV three-level integrated gate phase-changing thyristor inverter |
| CN2582247Y (en) * | 2002-09-11 | 2003-10-22 | 鞍山荣信电力电子股份有限公司 | Pulse photo-electric conversion circuit for high-voltage, static type dynamic reactive-load power compensation equipment |
| CN1996733A (en) * | 2006-11-15 | 2007-07-11 | 中国工程物理研究院环境保护工程研究中心 | Control system for series work of fast thyristors |
-
2009
- 2009-12-11 CN CN200910220692XA patent/CN101764410B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2291746Y (en) * | 1997-01-10 | 1998-09-16 | 李运昌 | Driving power supply for electromagnetic oscillation |
| CN1384593A (en) * | 2002-06-07 | 2002-12-11 | 清华大学 | Bridge arm through protecting system for 6KV three-level integrated gate phase-changing thyristor inverter |
| CN2582247Y (en) * | 2002-09-11 | 2003-10-22 | 鞍山荣信电力电子股份有限公司 | Pulse photo-electric conversion circuit for high-voltage, static type dynamic reactive-load power compensation equipment |
| CN1996733A (en) * | 2006-11-15 | 2007-07-11 | 中国工程物理研究院环境保护工程研究中心 | Control system for series work of fast thyristors |
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| Publication number | Publication date |
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| CN101764410A (en) | 2010-06-30 |
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Owner name: RONGXIN POWER ELECTRONIC CO., LTD. STATE ELECTRIC Free format text: FORMER OWNER: RONGXIN POWER ELECTRONIC CO., LTD. Effective date: 20121102 |
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Effective date of registration: 20121102 Address after: 114002 Anshan South Road, Tiedong District, Liaoning, Shengli Road, No. 33 Patentee after: ANSHAN POWER SUPPLY COMPANY, LIAONING ELECTRIC POWER Co.,Ltd. Patentee after: RONGXIN POWER ELECTRONIC Co.,Ltd. Patentee after: State Grid Corporation of China Address before: 114002 Anshan South Road, Tiedong District, Liaoning, Shengli Road, No. 33 Patentee before: ANSHAN POWER SUPPLY COMPANY, LIAONING ELECTRIC POWER Co.,Ltd. Patentee before: RONGXIN POWER ELECTRONIC Co.,Ltd. |
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Address after: 114002 Anshan South Road, Tiedong District, Liaoning, Shengli Road, No. 33 Patentee after: Anshan Power Supply Company of State Grid Liaoning Electric Power Company Patentee after: MONTNETS RONGXIN TECHNOLOGY GROUP CO.,LTD. Patentee after: State Grid Corporation of China Address before: 114002 Anshan South Road, Tiedong District, Liaoning, Shengli Road, No. 33 Patentee before: ANSHAN POWER SUPPLY COMPANY, LIAONING ELECTRIC POWER Co.,Ltd. Patentee before: RONGXIN POWER ELECTRONIC Co.,Ltd. Patentee before: State Grid Corporation of China |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 114002 South victory road, Tiedong District, Anshan, Liaoning Province, No. 33 Co-patentee after: MONTNETS RONGXIN TECHNOLOGY GROUP CO.,LTD. Patentee after: Anshan Power Supply Company of State Grid Liaoning Electric Power Company Co-patentee after: STATE GRID CORPORATION OF CHINA Address before: 114002 South victory road, Tiedong District, Anshan, Liaoning Province, No. 33 Co-patentee before: MONTNETS RONGXIN TECHNOLOGY GROUP CO.,LTD. Patentee before: Anshan Power Supply Company of State Grid Liaoning Electric Power Company Co-patentee before: State Grid Corporation of China |
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Effective date of registration: 20180801 Address after: 114002 South victory road, Tiedong District, Anshan, Liaoning Province, No. 33 Co-patentee after: LIAONING RONGXIN INDUSTRIAL ELECTRIC POWER TECHNOLOGY CO.,LTD. Patentee after: Anshan Power Supply Company of State Grid Liaoning Electric Power Company Co-patentee after: STATE GRID CORPORATION OF CHINA Address before: 114002 South victory road, Tiedong District, Anshan, Liaoning Province, No. 33 Co-patentee before: MONTNETS RONGXIN TECHNOLOGY GROUP CO.,LTD. Patentee before: Anshan Power Supply Company of State Grid Liaoning Electric Power Company Co-patentee before: STATE GRID CORPORATION OF CHINA |