CN201667608U - High-voltage thyristor valve trigger circuit - Google Patents
High-voltage thyristor valve trigger circuit Download PDFInfo
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- CN201667608U CN201667608U CN2010201511514U CN201020151151U CN201667608U CN 201667608 U CN201667608 U CN 201667608U CN 2010201511514 U CN2010201511514 U CN 2010201511514U CN 201020151151 U CN201020151151 U CN 201020151151U CN 201667608 U CN201667608 U CN 201667608U
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- thyristor
- pulse
- generation circuit
- pulse transformer
- triggering signal
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Abstract
The utility model discloses a high-voltage thyristor valve trigger circuit, comprising a reception and trigger signal circuit, a pulse generation circuit and a pulse transformer set. The reception and trigger signal circuit receives a valve set trigger signal transmitted from a host computer, and transmits the valve set trigger signal to the pulse generation circuit. The pulse generation circuit generates thyristor trigger pulse after receiving the valve set trigger signal and triggers the thyristor valve set by the pulse transformer. The utility model has advantages of simple structure, low cost, good trigger consistency and high isolation reliability.
Description
Technical field
The utility model relates to a kind of thyristor valve group circuits for triggering.
Background technology
In field of power electronics, along with the development of society, ever-increasing power requirement usually needs the power semiconductor series connection that a plurality of voltage withstand class are lower to use so that semiconductor switch reaches higher voltage withstand class.For thyristor, in the high voltage field, usually use a plurality of thyristors to be composed in series the mode of thyristor valve to satisfy voltage request.The key technology that thyristor series connection is used be realize the consistency that a plurality of thyristors trigger and satisfy a plurality of series thyristors drive between with and and the control low-pressure side between isolation strength.
When the circuit that triggers design for single thyristor is used to trigger the thyristor valve group that the thyristor series connection uses, there is following problem:
1, the triggering consistency of thyristor valve group is difficult to guarantee;
2, series thyristor valve group operating voltage is often higher, so to being used for the pulse transformer of circuits for triggering, former, inferior intercoil insulation level is had higher requirement.The not enough situation that causes the stream device to have an accident of dielectric strength still occurs repeatedly between, secondary coil former owing to pulse transformer, and its consequence influence is often all very serious.
Summary of the invention
For solving the problem of above existence, the utility model provides a kind of high-pressure thyristor valve circuits for triggering, and its technical scheme of taking is:
This circuit comprises reception triggering signal circuit, pulse generation circuit and pulse transformer group, receive the triggering signal circuit and receive the valve group triggering signal that the host computer transmission comes, and valve group triggering signal is transferred to pulse generation circuit, pulse generation circuit generates the thyristor trigger impulse after receiving valve group triggering signal, triggers the thyristor valve group by the pulse transformer group.
Receive the triggering signal circuit and comprise optical receiver Q1, resistance R 1 and capacitor C 1, optical receiver Q1 receiving valve group triggering signal also exports pulse generation circuit to.
Pulse generation circuit comprises MOSFET chip for driving U1, resistance R 2, capacitor C 2 and MOSFET Q2, and after pulse generation circuit received triggering signal, MOSFET chip for driving U1 driven MOS FET Q2 conducting triggered the thyristor valve group by the pulse transformer group.
The pulse transformer group is formed by high-tension cable 5 serial connections by a plurality of pulse transformers 3, the thyristor valve group forms by being connected in series with pulse transformer 3 corresponding thyristors 4, high-tension cable 5 connects pulse generation circuit as a winding of pulse transformer 3, secondary winding 2 is wound on the ring-shaped silicon steel sheet iron core 1 of pulse transformer 3, and secondary winding 2 triggers auxiliary resistance 6 by thyristor and diode 7 connects each self-corresponding thyristor 4.
Pulse transformer 3 triggers auxiliary resistance 6 with thyristor and diode 7 casts in.
This circuit solved the consistency that thyristor valve tandem element in the high-tension electricity electronic installation triggers and satisfy a plurality of series thyristors drive between with and and the control low-pressure side between isolation strength.Because a plurality of pulse transformer series connection are used, and when adopting same triggering signal to trigger the thyristor valve group, can obtain good triggering consistency, improve the fail safe of thyristor valve group.Pulse transformer is corresponding with thyristor to be installed nearby, the very easy processing of isolation between therefore a plurality of series thyristors drive.The pulse transformer that is in high potential is isolated by high-tension cable with the pulse generation circuit that is in electronegative potential, adopts high-tension cable that high electronegative potential is isolated the reliability that has promptly improved control loop and system's use and makes that again circuits for triggering are simple, cost is low.
Therefore the utlity model has simple in structure, production cost is low, trigger high conformity, isolate the characteristics of good reliability.
Description of drawings
Fig. 1 is circuit theory diagrams of the present utility model;
Fig. 2 receives the circuit theory diagrams of triggering signal circuit for the utility model;
Fig. 3 is the circuit theory diagrams of the utility model pulse generation circuit.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further:
As shown in Figure 1, receive the triggering signal circuit and connect pulse generation circuit, pulse generation circuit connects the pulse transformer group by high-tension cable 5, and the pulse transformer group connects the thyristor valve group.The pulse transformer group is formed by high-tension cable 5 serial connections by plural pulse transformer 3, the thyristor valve group forms by being connected in series with pulse transformer 3 corresponding thyristors 4, high-tension cable 5 is as a winding of pulse transformer, pulse transformer 3 adopts ring-shaped silicon steel sheet iron core 1, the secondary winding 2 of pulse transformer 3 is wound on the iron core 1, secondary winding 2 triggers auxiliary resistance 6 by thyristor and diode 7 connects each self-corresponding thyristor 4, and pulse transformer 3 triggers auxiliary resistance 6 with thyristor and diode 7 casts in.
As shown in Figure 2, receive the triggering signal circuit and comprise optical receiver Q1, resistance R 1 and capacitor C 1, optical receiver Q1 receiving valve group triggering signal also reaches pulse generation circuit.
As shown in Figure 3, pulse generation circuit comprises MOSFET chip for driving U1, resistance R 2, capacitor C 2 and MOSFET Q2.After pulse generation circuit received triggering signal, MOSFET chip for driving U1 driven MOS FETQ2 conducting was transmitted activated with energy thyristor valve group by the pulse transformer group.
A whole set of circuit and high-pressure thyristor valve group all are in high potential.Receiving the triggering signal circuit is responsible for receiving valve group triggering signal that host computer comes by Optical Fiber Transmission and the host computer triggering signal is transferred to pulse generation circuit, by the isolation of optical fiber, realized being in the host computer and the electrical isolation that is in the high-pressure thyristor valve group circuits for triggering of high potential of electronegative potential; Pulse generation circuit is responsible for generating the thyristor trigger impulse after receiving triggering signal, triggers each self-corresponding thyristor 4 by pulse transformer 3.
Claims (5)
1. high-pressure thyristor valve circuits for triggering, comprise and receive triggering signal circuit, pulse generation circuit and pulse transformer group, it is characterized in that: receive the triggering signal circuit and receive the valve group triggering signal that the host computer transmission comes, and valve group triggering signal is transferred to pulse generation circuit, pulse generation circuit generates the thyristor trigger impulse after receiving valve group triggering signal, triggers the thyristor valve group by the pulse transformer group.
2. a kind of high-pressure thyristor valve circuits for triggering according to claim 1 is characterized in that: receive the triggering signal circuit and comprise optical receiver Q1, resistance R 1 and capacitor C 1, optical receiver Q1 receiving valve group triggering signal also exports pulse generation circuit to.
3. a kind of high-pressure thyristor valve circuits for triggering according to claim 1, it is characterized in that: pulse generation circuit comprises MOSFET chip for driving U1, resistance R 2, capacitor C 2 and MOSFET Q2, after pulse generation circuit receives triggering signal, MOSFET chip for driving U1 driven MOS FET Q2 conducting triggers the thyristor valve group by the pulse transformer group.
4. a kind of high-pressure thyristor valve circuits for triggering according to claim 1, it is characterized in that: the pulse transformer group is formed by high-tension cable (5) serial connection by a plurality of pulse transformers (3), the thyristor valve group forms by being connected in series with the corresponding thyristor of pulse transformer (3) (4), high-tension cable (5) connects pulse generation circuit as a winding of pulse transformer (3), secondary winding (2) is wound on the ring-shaped silicon steel sheet iron core (1) of pulse transformer (3), and secondary winding (2) triggers auxiliary resistance (6) by thyristor and diode (7) connects each self-corresponding thyristor (4).
5. a kind of high-pressure thyristor valve circuits for triggering according to claim 4 is characterized in that: pulse transformer (3) triggers auxiliary resistance (6) with thyristor and diode (7) casts in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201511514U CN201667608U (en) | 2010-03-31 | 2010-03-31 | High-voltage thyristor valve trigger circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201511514U CN201667608U (en) | 2010-03-31 | 2010-03-31 | High-voltage thyristor valve trigger circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201667608U true CN201667608U (en) | 2010-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2010201511514U Expired - Fee Related CN201667608U (en) | 2010-03-31 | 2010-03-31 | High-voltage thyristor valve trigger circuit |
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| CN (1) | CN201667608U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105391319A (en) * | 2015-10-19 | 2016-03-09 | 株洲变流技术国家工程研究中心有限公司 | High-voltage cascade thyristor rectification circuit photoelectric triggering system and high-voltage cascade thyristor rectification circuit photoelectric triggering method |
| CN107835007A (en) * | 2017-11-17 | 2018-03-23 | 华中科技大学 | A kind of series thyristor driver for being applicable high-tension high-power pulsed discharge |
| CN109450422A (en) * | 2018-12-03 | 2019-03-08 | 珠海华网科技有限责任公司 | A kind of driving circuit of self-pulsing type series connection photo thyristor |
| CN111884638A (en) * | 2020-07-07 | 2020-11-03 | 大力(武汉)环保科技有限公司 | Thyristor interlocking control circuit |
| CN116633332A (en) * | 2023-04-17 | 2023-08-22 | 上海凌世电磁技术有限公司 | 15KV high-voltage pulse semiconductor switch |
-
2010
- 2010-03-31 CN CN2010201511514U patent/CN201667608U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105391319A (en) * | 2015-10-19 | 2016-03-09 | 株洲变流技术国家工程研究中心有限公司 | High-voltage cascade thyristor rectification circuit photoelectric triggering system and high-voltage cascade thyristor rectification circuit photoelectric triggering method |
| CN107835007A (en) * | 2017-11-17 | 2018-03-23 | 华中科技大学 | A kind of series thyristor driver for being applicable high-tension high-power pulsed discharge |
| CN107835007B (en) * | 2017-11-17 | 2024-02-02 | 华中科技大学 | Series thyristor driver suitable for high-voltage high-power pulse discharge |
| CN109450422A (en) * | 2018-12-03 | 2019-03-08 | 珠海华网科技有限责任公司 | A kind of driving circuit of self-pulsing type series connection photo thyristor |
| CN111884638A (en) * | 2020-07-07 | 2020-11-03 | 大力(武汉)环保科技有限公司 | Thyristor interlocking control circuit |
| CN116633332A (en) * | 2023-04-17 | 2023-08-22 | 上海凌世电磁技术有限公司 | 15KV high-voltage pulse semiconductor switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101208 Termination date: 20110331 |