CN203690926U - Trigger circuit of direct light-activated thyristor - Google Patents
Trigger circuit of direct light-activated thyristor Download PDFInfo
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- CN203690926U CN203690926U CN201320770143.1U CN201320770143U CN203690926U CN 203690926 U CN203690926 U CN 203690926U CN 201320770143 U CN201320770143 U CN 201320770143U CN 203690926 U CN203690926 U CN 203690926U
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- 230000001960 triggered effect Effects 0.000 claims description 43
- 239000003990 capacitor Substances 0.000 claims description 14
- 230000003321 amplification Effects 0.000 claims description 11
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 11
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- 230000005622 photoelectricity Effects 0.000 claims description 2
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- 230000005540 biological transmission Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000013307 optical fiber Substances 0.000 description 4
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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
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- 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 utility model discloses a trigger circuit of a direct light-activated thyristor. Laser trigger signals are used to trigger a thyristor. The trigger circuit comprises a photoelectric conversion circuit, a pulse providing unit, a laser tube unit, an optoelectronic isolation circuit connected with the pulse providing unit, and a voltage stabilizing circuit connected in sequence. The voltage stabilizing circuit is used to stabilize input 24V DC voltage respectively to 5V voltage and 2.5V voltage, so as to provide corresponding voltage for each electric circuit. The trigger circuit of a direct light-activated thyristor can overcome defects in the prior that stability is poor, reliability is low, and service life is short, so as to realize advantages of good stability, high reliability and long service life.
Description
Technical field
The utility model relates to electronic circuit technology field, particularly, relates to a kind of circuits for triggering of direct light triggered thyristor.
Background technology
Directly light triggered thyristor is that light Trigger Function unit is integrated into LTT silicon chip inside; to be integrated into LTT silicon chip inside in order to the Breakover diode (Break Over Diode) of forward overvoltage protection (being called for short BOD protection) simultaneously; make direct light triggered thyristor itself have photosensitive trigger region, also there is BOD defencive function.With together with common ETT, in thyristor valve group in the application of LTT technology and high voltage direct current transmission and static reactive power compensating equipment, wherein directly the circuits for triggering of light triggered thyristor are the important component parts in LTT thyristor valve group, are also key problem in technology.
The thyristor valve group electric pressure of domestic application is all below 35kV at present, and be all by thyristor electronic circuit TE plate, the signal of telecommunication of thyristor is triggered, and each thyristor needs a TE plate, triggering for the thyristor of large electric pressure also has certain restriction, simultaneously TE plate need to be in valve group by RC get can, also need further raising in stability to electric power system, reliability, useful life etc.
Realizing in process of the present utility model, inventor finds that in prior art, at least existence and stability is poor, reliability is low and the defect such as useful life is short.
Utility model content
The purpose of this utility model is, for the problems referred to above, proposes a kind of circuits for triggering of direct light triggered thyristor, to realize the advantage of the high and long service life of good stability, reliability.
For achieving the above object, the technical solution adopted in the utility model is: a kind of circuits for triggering of direct light triggered thyristor, adopt laser trigger signal to trigger thyristor, described circuits for triggering comprise that the photoelectric switching circuit, the pulse that connect successively provide unit and laser tube unit, the photoelectric isolating circuit that provides circuit to be connected with described pulse, and for the 24V direct voltage of input respectively voltage stabilizing provide the voltage stabilizing circuit of corresponding voltage to 5V voltage and 2.5V voltage for each power circuit;
Described photoelectric switching circuit, carries out, after opto-electronic conversion, exporting pulse to unit being provided for the light trigger pulse signal based on input; Described photoelectric isolating circuit, carries out, after photoelectricity isolation processing, exporting pulse to unit being provided for the control trigger impulse output signal based on input; Described laser tube unit, for the laser tube breakdown signal based on input with after losing pulse signal and processing, the strong triggering signal of Output of laser.
Further, described pulse provides unit, comprise parallel 2uS impulse circuit and the 10uS impulse circuit that arranges and be connected with described photoelectric switching circuit respectively, and the pulse combiner circuit being connected with described 2uS impulse circuit, 10uS impulse circuit and laser tube unit respectively.
Further, described laser tube unit, comprises that the parallel laser tube arranging and connect successively punctures testing circuit, laser tube radiating circuit and loses pulse-detecting circuit, and described laser tube radiating circuit is connected with pulse combiner circuit;
Described laser tube punctures testing circuit, after processing, exports laser tube radiating circuit to for the laser tube breakdown signal based on input; The described pulse-detecting circuit of losing, for exporting laser tube radiating circuit to based on losing after pulse signal is processed of input; Described laser tube radiating circuit, for puncture based on described laser tube testing circuit output signal, described in lose after the output signal of pulse-detecting circuit and the output signal of described pulse combiner circuit process, the strong triggering signal of Output of laser pipe.
Further, described laser tube radiating circuit, comprise the first amplification module, the second amplification module and the laser tube transmitter module that are connected with the output of described pulse combiner circuit successively, the strong triggering signal of laser that described laser tube transmitter module sends is transferred to direct light triggered thyristor by laser fiber.
Further, described laser tube radiating circuit, also comprises the current limliting module that is connected rear ground connection with described laser tube transmitter module.
Further, described current limliting module, comprises the second current-limiting resistance R108 and the 3rd current-limiting resistance R109 that are connected in turn between described laser tube transmitter module and ground.
Further, described the first amplification module, comprises the first triode V11, the first resistance R 17, the second resistance R 18 and the first capacitor C 25, wherein:
The base stage of described the first triode V11 is connected with the output of described pulse combiner circuit, the collector electrode that the collector electrode of the first triode V11 meets 24V direct voltage, the first triode V11 after the first resistance R 17 is also connected with the positive pole of the first capacitor C 25, the minus earth of the first capacitor C 25, the emitter of the first triode V11 is ground connection after the second resistance R 18, and the emitter of the first triode V11 is connected with the input of the second amplification module.
Further, described the second amplification module, comprises the second triode V12, the 3rd resistance R 19, the first diode D13 and the second capacitor C 26, wherein:
The base stage of described the second triode V12 is connected with the emitter of the first triode V11, the base stage of the second triode V12 is also connected with the negative electrode of the first diode D13, the collector electrode that the collector electrode of the second triode V12 meets 24V direct voltage, the second triode V12 through the 3rd resistance R 19 is also connected with the positive pole of the second capacitor C 26, the minus earth of the second capacitor C 26, the emitter of the second triode V12 is also connected with laser tube transmitter module with the anodic bonding of the first diode D13, the emitter of the second triode V12.
Further, described laser tube transmitter module, comprise the first current-limiting resistance R100 being connected with the emitter of described the second triode V12, and the multiple laser tube transmitting submodules that are connected away from one end of the emitter of the second triode V12 with described the first current-limiting resistance R100 and connect.
Further, the structure of described multiple laser tube submodules is identical; Wherein, the first laser tube submodule, comprise anode with the first current-limiting resistance R100 away from the first laser tube V101 that one end of the emitter of the second triode V12 is connected, negative electrode is connected with the second laser tube submodule, and be connected in parallel on the first grading resistor R101 between the anode of described the first laser tube V101 and the negative electrode of the first laser tube V101.
The circuits for triggering of the direct light triggered thyristor of the each embodiment of the utility model, adopt laser trigger signal to trigger thyristor, because comprising the photoelectric switching circuit, the pulse that connect successively, these circuits for triggering provide unit and laser tube unit, the photoelectric isolating circuit that provides circuit to be connected with described pulse, and for the 24V direct voltage of input respectively voltage stabilizing provide the voltage stabilizing circuit of corresponding voltage to 5V voltage and 2.5V voltage for each power circuit; Can control trigger impulse output signal through under the signal controlling of photoelectric isolating circuit, synthetic pulse signal is delivered to laser tube radiating circuit, and the strong triggering signal of Output of laser is given direct light triggered thyristor; Thereby can overcome poor stability in prior art, reliability is low and useful life is short defect, to realize the advantage of the high and long service life of good stability, reliability.
Other features and advantages of the utility model will be set forth in the following description, and, partly from specification, become apparent, or understand by implementing the utility model.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and forms a part for specification, is used from explanation the utility model with embodiment mono-of the present utility model, does not form restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the operation principle schematic diagram of the circuits for triggering of the direct light triggered thyristor of the utility model;
Fig. 2 is the electrical principle schematic diagram of laser tube radiating circuit in the circuits for triggering of the direct light triggered thyristor of the utility model.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein is only for description and interpretation the utility model, and be not used in restriction the utility model.
The problem existing for solving prior art, according to the utility model embodiment, as depicted in figs. 1 and 2, a kind of circuits for triggering of direct light triggered thyristor are provided, be specifically related to the circuits for triggering of direct light triggered thyristor, be applied in the light-operated SVC compensation arrangement of 66KV and above.The circuits for triggering of this direct light triggered thyristor, its output signal is the strong modulated pulse signal triggering of band, trigger optical fiber and be directly transferred to the photosensitive area of thyristor by laser, trigger thyristor, improve the antijamming capability of thyristor triggering signal, and then improved the reliability of SVC compensation arrangement.
The circuits for triggering of the direct light triggered thyristor of the present embodiment, adopt laser trigger signal to trigger thyristor, comprise photoelectric switching circuit, 2uS impulse circuit, 10uS impulse circuit, pulse combiner circuit, laser tube radiating circuit, laser tube punctures testing circuit, photoelectric isolating circuit, lose pulse-detecting circuit and voltage stabilizing circuit, light trigger pulse signal passes through photoelectric switching circuit, light signal is converted to the signal of telecommunication, one tunnel is through 2uS impulse circuit, another road is through 10uS impulse circuit, these two circuit are simultaneously by pulse combiner circuit, controlling trigger impulse output signal through under the signal controlling of photoelectric isolating circuit, synthetic pulse signal is delivered to laser tube radiating circuit, the strong triggering signal of Output of laser is given direct light triggered thyristor, in laser transmission circuit, puncture testing circuit and lose pulse-detecting circuit Output of laser pipe breakdown signal and lose pulse signal respectively by laser tube, deliver to pulse control cubicle.This voltage stabilizing circuit is the voltage to 5V and 2.5V the 24V direct voltage voltage stabilizing of input, for each circuit provides corresponding voltage.
Particularly, as shown in Figure 1, the directly circuits for triggering of light triggered thyristor, adopt laser trigger signal to trigger thyristor, comprise photoelectric switching circuit, 2uS impulse circuit, 10uS impulse circuit, pulse combiner circuit, laser tube radiating circuit, laser tube punctures testing circuit, photoelectric isolating circuit, lose pulse-detecting circuit and voltage stabilizing circuit, light trigger pulse signal passes through photoelectric switching circuit, light signal is converted to the signal of telecommunication, one tunnel is through 2uS impulse circuit, another road is through 10uS impulse circuit, these two circuit are simultaneously by pulse combiner circuit, controlling trigger impulse output signal through under the signal controlling of photoelectric isolating circuit, synthetic pulse signal is delivered to laser tube radiating circuit, the strong triggering signal of Output of laser is given direct light triggered thyristor, in laser transmission circuit, puncture testing circuit and lose pulse-detecting circuit Output of laser pipe breakdown signal and lose pulse signal respectively by laser tube, deliver to pulse control cubicle.Voltage stabilizing circuit be the voltage to 5V and 2.5V the 24V direct voltage voltage stabilizing of input, for each circuit provides corresponding voltage.
As shown in Figure 2; laser tube radiating circuit comprises two triode V11 and V12, diode D13, capacitor C 25 and C26, resistance R 17, R18, R19 and R100～R109, laser tube V101～V107; the pulse signal of pulse combiner circuit output; through the amplification of triode V11 and V12; the current limliting of the filtering of capacitor C 25 and C26, the protection of diode D13, resistance R 100, R108, R109; after resistance R 101～R107 all presses; send the strong triggering signal of laser by laser tube V101～V107, be transferred to direct light triggered thyristor by laser fiber.
In the above-described embodiments, directly the circuits for triggering operation principle of light triggered thyristor is to send start pulse signal by control cubicle, send to the reception of impulse plate triggering in case through optical fiber, become the strong triggering signal of laser by the circuits for triggering of direct light triggered thyristor, by the special optic fibre triggering, strong laser triggering signal is delivered to the gate pole of photo thyristor, control the size of the angle of flow of thyristor, control again the size of TCR reactor current, that is to say the size that regulates reactive power compensation amount, coordinate FC capacitive reactive power, finally realize reactive power compensation, improve the reliability triggering, extend the working life of system.
In the above-described embodiments, directly the circuits for triggering of light triggered thyristor are positioned at the triggering case in the centre position, below of two photo-thyristor valve group unit of valve group chamber, therefore reduce widely the consumption that triggers optical fiber, make the installation of system simple, easy to maintenance, strong interference immunity, has improved the reliability of system, has reduced the cost of system.
The circuits for triggering of the direct light triggered thyristor of the utility model the various embodiments described above, be applied in the light-operated SVC compensation arrangement of 66kV and above, the circuits for triggering of this direct light triggered thyristor comprise photoelectric switching circuit, 2uS impulse circuit, 10uS impulse circuit, pulse combiner circuit, laser tube radiating circuit, laser tube punctures testing circuit, photoelectric isolating circuit, lose pulse-detecting circuit and voltage stabilizing circuit, light trigger pulse signal passes through photoelectric switching circuit, light signal is converted to the signal of telecommunication, one tunnel is through 2uS impulse circuit, another road is through 10uS impulse circuit, these two circuit are simultaneously by pulse combiner circuit, controlling trigger impulse output signal through under the signal controlling of photoelectric isolating circuit, synthetic pulse signal is delivered to laser tube radiating circuit, the strong triggering signal of Output of laser is given direct light triggered thyristor, reliable trigger is high, strong interference immunity, long working life, work low in energy consumption.
Compared with prior art, the circuits for triggering of the direct light triggered thyristor of the utility model the various embodiments described above, the beneficial effect that at least can reach is:
(1) trigger impulse input signal is through the synthetic strong triggering signal of circuits for triggering of direct light triggered thyristor, guarantee the reliably conducting simultaneously of the inconsistent thyristor of parameter, adopt laser trigger signal and optical fiber transmission, complete the triggering to direct light triggered thyristor, antijamming capability is strong;
(2) meet the triggering requirement of the direct light triggered thyristor of variety classes;
(3) having laser tube punctures detection and loses pulse detection function; Guarantee the circuits for triggering reliably working of direct light triggered thyristor, avoid the fault of SVC compensation arrangement thyristor valve group, in the time that circuits for triggering are out of order, can notify in time control cubicle output to control trigger impulse output signal, block the output of laser trigger signal, guarantee that every part of system can reliability service.
Finally it should be noted that: the foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, although the utility model is had been described in detail with reference to previous embodiment, for a person skilled in the art, its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.
Claims (10)
1. the circuits for triggering of a direct light triggered thyristor, it is characterized in that, adopt laser trigger signal to trigger thyristor, described circuits for triggering comprise that the photoelectric switching circuit, the pulse that connect successively provide unit and laser tube unit, the photoelectric isolating circuit that provides circuit to be connected with described pulse, and for the 24V direct voltage of input respectively voltage stabilizing provide the voltage stabilizing circuit of corresponding voltage to 5V voltage and 2.5V voltage for each power circuit;
Described photoelectric switching circuit, carries out, after opto-electronic conversion, exporting pulse to unit being provided for the light trigger pulse signal based on input; Described photoelectric isolating circuit, carries out, after photoelectricity isolation processing, exporting pulse to unit being provided for the control trigger impulse output signal based on input; Described laser tube unit, for the laser tube breakdown signal based on input with after losing pulse signal and processing, the strong triggering signal of Output of laser.
2. the circuits for triggering of direct light triggered thyristor according to claim 1, it is characterized in that, described pulse provides unit, comprise parallel 2uS impulse circuit and the 10uS impulse circuit that arranges and be connected with described photoelectric switching circuit respectively, and the pulse combiner circuit being connected with described 2uS impulse circuit, 10uS impulse circuit and laser tube unit respectively.
3. the circuits for triggering of direct light triggered thyristor according to claim 2, it is characterized in that, described laser tube unit, comprise that the parallel laser tube arranging and connect successively punctures testing circuit, laser tube radiating circuit and loses pulse-detecting circuit, described laser tube radiating circuit is connected with pulse combiner circuit;
Described laser tube punctures testing circuit, after processing, exports laser tube radiating circuit to for the laser tube breakdown signal based on input; The described pulse-detecting circuit of losing, for exporting laser tube radiating circuit to based on losing after pulse signal is processed of input; Described laser tube radiating circuit, for puncture based on described laser tube testing circuit output signal, described in lose after the output signal of pulse-detecting circuit and the output signal of described pulse combiner circuit process, the strong triggering signal of Output of laser pipe.
4. the circuits for triggering of direct light triggered thyristor according to claim 3, it is characterized in that, described laser tube radiating circuit, comprise the first amplification module, the second amplification module and the laser tube transmitter module that are connected with the output of described pulse combiner circuit successively, the strong triggering signal of laser that described laser tube transmitter module sends is transferred to direct light triggered thyristor by laser fiber.
5. the circuits for triggering of direct light triggered thyristor according to claim 4, is characterized in that, described laser tube radiating circuit also comprises the current limliting module that is connected rear ground connection with described laser tube transmitter module.
6. the circuits for triggering of direct light triggered thyristor according to claim 5, is characterized in that, described current limliting module comprises the second current-limiting resistance R108 and the 3rd current-limiting resistance R109 that are connected in turn between described laser tube transmitter module and ground.
7. according to the circuits for triggering of the direct light triggered thyristor described in any one in claim 4-6, it is characterized in that, described the first amplification module, comprises the first triode V11, the first resistance R 17, the second resistance R 18 and the first capacitor C 25, wherein:
The base stage of described the first triode V11 is connected with the output of described pulse combiner circuit, the collector electrode that the collector electrode of the first triode V11 meets 24V direct voltage, the first triode V11 after the first resistance R 17 is also connected with the positive pole of the first capacitor C 25, the minus earth of the first capacitor C 25, the emitter of the first triode V11 is ground connection after the second resistance R 18, and the emitter of the first triode V11 is connected with the input of the second amplification module.
8. the circuits for triggering of direct light triggered thyristor according to claim 7, is characterized in that, described the second amplification module comprises the second triode V12, the 3rd resistance R 19, the first diode D13 and the second capacitor C 26, wherein:
The base stage of described the second triode V12 is connected with the emitter of the first triode V11, the base stage of the second triode V12 is also connected with the negative electrode of the first diode D13, the collector electrode that the collector electrode of the second triode V12 meets 24V direct voltage, the second triode V12 through the 3rd resistance R 19 is also connected with the positive pole of the second capacitor C 26, the minus earth of the second capacitor C 26, the emitter of the second triode V12 is also connected with laser tube transmitter module with the anodic bonding of the first diode D13, the emitter of the second triode V12.
9. the circuits for triggering of direct light triggered thyristor according to claim 8, it is characterized in that, described laser tube transmitter module, comprise the first current-limiting resistance R100 being connected with the emitter of described the second triode V12, and the multiple laser tube transmitting submodules that are connected away from one end of the emitter of the second triode V12 with described the first current-limiting resistance R100 and connect.
10. the circuits for triggering of direct light triggered thyristor according to claim 9, is characterized in that, the structure of described multiple laser tube submodules is identical; Wherein, the first laser tube submodule, comprise anode with the first current-limiting resistance R100 away from the first laser tube V101 that one end of the emitter of the second triode V12 is connected, negative electrode is connected with the second laser tube submodule, and be connected in parallel on the first grading resistor R101 between the anode of described the first laser tube V101 and the negative electrode of the first laser tube V101.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320770143.1U CN203690926U (en) | 2013-11-30 | 2013-11-30 | Trigger circuit of direct light-activated thyristor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320770143.1U CN203690926U (en) | 2013-11-30 | 2013-11-30 | Trigger circuit of direct light-activated thyristor |
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| CN203690926U true CN203690926U (en) | 2014-07-02 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683302A (en) * | 2013-11-30 | 2014-03-26 | 国家电网公司 | Trigger circuit of direct light-triggered thyristor |
| CN104158525A (en) * | 2014-08-29 | 2014-11-19 | 电子科技大学 | Optically-driven IGBT (Insulated Gate Bipolar Translator) device based on single optical fiber power supply and pulse signal transmission |
-
2013
- 2013-11-30 CN CN201320770143.1U patent/CN203690926U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683302A (en) * | 2013-11-30 | 2014-03-26 | 国家电网公司 | Trigger circuit of direct light-triggered thyristor |
| CN103683302B (en) * | 2013-11-30 | 2018-05-15 | 国家电网公司 | A kind of trigger circuit of directly light triggered thyristor |
| CN104158525A (en) * | 2014-08-29 | 2014-11-19 | 电子科技大学 | Optically-driven IGBT (Insulated Gate Bipolar Translator) device based on single optical fiber power supply and pulse signal transmission |
| CN104158525B (en) * | 2014-08-29 | 2017-05-31 | 电子科技大学 | Powered the optical drive IGBT devices with pulse signal transmission based on simple optical fiber |
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Granted publication date: 20140702 |