CN203658531U - Electromagnetic trigger thyristor state detection circuit - Google Patents
Electromagnetic trigger thyristor state detection circuit Download PDFInfo
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- CN203658531U CN203658531U CN201320723268.9U CN201320723268U CN203658531U CN 203658531 U CN203658531 U CN 203658531U CN 201320723268 U CN201320723268 U CN 201320723268U CN 203658531 U CN203658531 U CN 203658531U
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- circuit
- thyristor
- detection circuit
- state detection
- electro
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- 238000001514 detection method Methods 0.000 title claims abstract description 12
- 238000006243 chemical reaction Methods 0.000 claims abstract description 9
- 239000013307 optical fiber Substances 0.000 abstract description 3
- 230000000087 stabilizing effect Effects 0.000 abstract description 3
- 230000005855 radiation Effects 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
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Abstract
The utility model relates to an electromagnetic trigger thyristor state detection circuit, which is connected to both sides of an anti-parallel thyristor unit and formed by connecting a rectifying circuit, a charging circuit, a primary voltage stabilizing circuit, an isolating circuit, a secondary voltage stabilizing circuit, a current limiting circuit and an electro-optic conversion circuit in sequence, and produces return signals. The electro-optic conversion circuit selects an HFBR1414T. The circuit provided by the utility model can detect the operating state of a thyristor in real time. Each thyristor detection circuit corresponds to a pair of thyristors. When a certain thyristor is broken down, the circuit can give out a return signal timely and accurately so as to ensure reliable running of a system. Return optical fibers adopt multi-film single-core optical fibers, and the stability, the reliability and the anti-interference performance of the system in operation are improved.
Description
Technical field
The utility model relates to a kind of electromagnetism and triggers thyristor state detection circuit, is applied in the following electromagnetism of 10kV and triggers in the SVC valve group of heat pipe heat radiation.
Background technology
In electric system, reactive power compensator below 10kV, the general valve group that adopts electromagnetism to trigger heat pipe heat radiation, this technology has continued a lot of years, mentality of designing maturation, stable, compact conformation, the valve group that electromagnetism triggers heat pipe heat radiation comprises thyristor unit, heat-pipe radiator unit, capacitor resistor unit, BOD protected location, puncture detecting unit, pulse housing unit and frame unit etc., heat pipe heat radiation does not need external unit, more easy for installation than water-cooled, it is the trigger pulse that control system is sent that electromagnetism triggers, through the photoelectric conversion unit of extra pulse cabinet, impedance matching unit and pulse forming unit, trigger pulse is formed to high-octane trigger pulse, through pulse cable, through pulse box, form trigger pulse, trigger corresponding thyristor, simultaneously in order to protect thyristor, protect thyristor having added BOD protection box and punctured detecting unit.But what adopt in the thyristor testing circuit that punctures detecting unit is black optical fiber, long transmission distance, poor anti jamming capability, brings labile factor to system, has reduced the reliability and stability of SVC compensation system entirety.
Summary of the invention
The purpose of this utility model is to provide a kind of electromagnetism and triggers thyristor state detection circuit, adopts yellow multimembrane single-core fiber, long transmission distance, and antijamming capability is strong, has improved the reliability and stability of system.
For achieving the above object, the utility model is achieved through the following technical solutions:
Electromagnetism triggers thyristor state detection circuit, this circuit is connected to the both sides of anti-parallel thyristor unit, connected to form successively by rectification circuit, charging circuit, mu balanced circuit, buffer circuit, secondary pressure circuit, current-limiting circuit and an electro-optical conversion circuit, produce return signal; That described electro-optical conversion circuit is selected is HFBR1414T.
Compared with prior art, the beneficial effects of the utility model are: 1) this circuit can detect the duty of thyristor in real time, and the corresponding a pair of thyristor of each thyristor testing circuit, in the time that certain thyristor damages, this circuit can promptly and accurately send return signal, ensures the reliability service of system; 2) have higher job stability, reliability and anti-interference, circuit structure is simple, energy consumption is extremely low, strong interference immunity, long working life.
Brief description of the drawings
Fig. 1 is the theory diagram that the utility model electromagnetism triggers thyristor state detection circuit.
Fig. 2 is the schematic diagram that the utility model electromagnetism triggers thyristor state detection circuit.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
See Fig. 1, electromagnetism triggers thyristor state detection circuit, be connected to the both sides of anti-parallel thyristor unit, connect successively rectification circuit, charging circuit, mu balanced circuit, buffer circuit, secondary pressure circuit, current-limiting circuit and an electro-optical conversion circuit, produce return signal.What described electro-optical conversion circuit was selected is that laser beam emitting head is HFBR1414T.
See Fig. 2, for a kind of electromagnetism triggers thyristor state detection circuit embodiment, the two ends of a pair of thyristor connect respectively the both sides of rectification circuit, the namely input end of rectifier bridge VD1, the output of VD1 is connected to two inductance L 1 and the L2 of charging circuit, in charging circuit, resistance R 1 is at voltage ascent stage, on controllable silicon
through RC, V7 to capacitor C
2charging, in the time that voltage reaches the voltage of V6 stabilivolt, V6 punctures, controllable silicon V5 conducting, but due to the buffer action of V7, the negative terminal voltage of V7 is still original voltage stabilizing value, this stabilized voltage supply is changed and is become 10V voltage after IC1 secondary pressure, after current-limiting resistance R4, connects laser beam emitting head HT1, and pass through laser beam emitting head HT1 the real-time status of thyristor, namely return signal, pass to control system by multimembrane single-core fiber, play the object of real-time detection thyristor state, improve the reliability of circuit, also extended the serviceable life of equipment.
Claims (1)
1. electromagnetism triggers thyristor state detection circuit, it is characterized in that, this circuit is connected to the both sides of anti-parallel thyristor unit, is connected to form successively by rectification circuit, charging circuit, mu balanced circuit, buffer circuit, secondary pressure circuit, current-limiting circuit and an electro-optical conversion circuit; That described electro-optical conversion circuit is selected is HFBR1414T.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320723268.9U CN203658531U (en) | 2013-11-13 | 2013-11-13 | Electromagnetic trigger thyristor state detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320723268.9U CN203658531U (en) | 2013-11-13 | 2013-11-13 | Electromagnetic trigger thyristor state detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203658531U true CN203658531U (en) | 2014-06-18 |
Family
ID=50924906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320723268.9U Expired - Fee Related CN203658531U (en) | 2013-11-13 | 2013-11-13 | Electromagnetic trigger thyristor state detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203658531U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112505496A (en) * | 2020-11-03 | 2021-03-16 | 西安交通大学 | Thyristor real-time diagnosis and prediction method for insulation abnormity in converter valve |
-
2013
- 2013-11-13 CN CN201320723268.9U patent/CN203658531U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112505496A (en) * | 2020-11-03 | 2021-03-16 | 西安交通大学 | Thyristor real-time diagnosis and prediction method for insulation abnormity in converter valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 Termination date: 20141113 |
|
| EXPY | Termination of patent right or utility model |