CN203967960U - A kind of high-power thyristor final stage trigger equipment - Google Patents
A kind of high-power thyristor final stage trigger equipment Download PDFInfo
- Publication number
- CN203967960U CN203967960U CN201420412639.6U CN201420412639U CN203967960U CN 203967960 U CN203967960 U CN 203967960U CN 201420412639 U CN201420412639 U CN 201420412639U CN 203967960 U CN203967960 U CN 203967960U
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- China
- Prior art keywords
- final stage
- pulse transformer
- degausser
- thyristor
- circuit
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- Expired - Fee Related
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- 238000007493 shaping process Methods 0.000 claims abstract description 15
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 4
- 239000003381 stabilizer Substances 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000001960 triggered effect Effects 0.000 abstract description 3
- 230000001360 synchronised effect Effects 0.000 abstract description 2
- 239000003990 capacitor Substances 0.000 description 5
- 238000004804 winding Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
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- Power Conversion In General (AREA)
Abstract
The utility model discloses a kind of high-power thyristor final stage trigger equipment, comprise that strong triggering forms circuit, degausser, pulse transformer and output current shaping circuit, after degausser, pulse transformer, output current shaping circuit are connected in parallel, be in series with the strong formation circuit that triggers.The utility model adopts forced-triggered technology, is that thyristor triggers the required synchronous strong trigger impulse with certain trigger current amplitude, width and current rise time, thereby has improved the reliability and stability of thyristor valve group by trigger impulse sequence variation.
Description
Technical field
The utility model belongs to thyristor capacitor triggered technical field in power electronic technology, is specifically related to a kind of high-power thyristor final stage trigger equipment.
Background technology
At present, along with the progressively lifting of power electronics industry to the requirement of convertor assembly thyristor reliable trigger, convertor assembly reliably opening of thyristor used becomes the key point that convertor assembly global reliability promotes, but the current domestic high-power thyristor final stage trigger equipment that there is no a kind of dependable performance.
Utility model content
For solving above-mentioned prior art defect, the purpose of this utility model is to provide a kind of highly reliable large power thyristor final stage trigger equipment.
For achieving the above object, technical solution adopted in the utility model is as follows:
A kind of high-power thyristor final stage trigger equipment, it is characterized in that: comprise that strong triggering forms circuit, degausser, pulse transformer and output current shaping circuit, after wherein said degausser, pulse transformer, output current shaping circuit are connected in parallel, be in series with the strong formation circuit that triggers.
Further, after described strong triggering shaping circuit is connected by resistance, Capacitance parallel connection and resistance be in series and form.
Further, described degausser is in parallel and forms with a resistance after being connected in series by a fast diode, a voltage-stabiliser tube.
Further, described output current shaping circuit is connected across the fast diode between signal source by one and another fast diode of being connected across between this fast diode and pulse transformer forms.
The utility model adopts forced-triggered technology, is that thyristor triggers the required synchronous strong trigger impulse with certain trigger current amplitude, width and current rise time, thereby has improved the reliability and stability of thyristor valve group by trigger impulse sequence variation.
Brief description of the drawings
Fig. 1 is the utility model electrical block diagram.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
As shown in Figure 1, a kind of high-power thyristor final stage trigger equipment, comprise that strong triggering forms circuit 1, degausser 2, pulse transformer T1 and output current shaping circuit 3, after described degausser 2, pulse transformer T1, output current shaping circuit 3 are connected in parallel, be in series with the strong formation circuit 1 that triggers.
Wherein, trigger by force after shaping circuit 1 is connected in parallel by resistance R 1, capacitor C 1 and be in series and form with resistance R 2; Degausser 2 is connected in series afterwards by fast diode D1, voltage-stabiliser tube Z1 and resistance R 3 is in parallel forms; Output current shaping circuit 3 by be connected across the fast diode D3 between signal source G, K and be connected across pulse transformer T1 and fast diode D3 between fast diode D2 form.
When work, standard input pulse signal is held input from S, E, capacitor C 1 is charged, and the loop that it passes through is the former limit of capacitor C 1-resistance R 2-pulse transformer T1 winding, makes pulse transformer T1 secondary obtain a peak current that amplitude is larger, forward position is precipitous; When capacitor C 1 is full of after electricity, the loop that standard signal passes through is the former limit of resistance R 1-resistance R 2-pulse transformer T1 winding, makes pulse transformer T1 secondary obtain the smaller platform electric current of amplitude.
The pulse signal that pulse transformer T1 secondary obtains is exported after by fast diode D2, D3 shaping; Fast diode D1 and voltage-stabiliser tube Z1 make pulse transformer T1 obtain a reverse voltage, so that its magnetic core is carried out to demagnetization; The parasitic oscillation that resistance R 3 can produce this loop high order harmonic component absorbs damping.
Claims (4)
1. a high-power thyristor final stage trigger equipment, it is characterized in that: comprise that strong triggering forms circuit (1), degausser (2), pulse transformer (T1) and output current shaping circuit (3), after described degausser (2), pulse transformer (T1), output current shaping circuit (3) are connected in parallel, be in series with the strong formation circuit (1) that triggers.
2. a kind of high-power thyristor final stage trigger equipment according to claim 1, is characterized in that: trigger by force after shaping circuit (1) is connected in parallel by resistance (R1), electric capacity (C1) and be in series and form with resistance (R2).
3. a kind of high-power thyristor final stage trigger equipment according to claim 1, is characterized in that: degausser (2) is connected in series afterwards by fast diode (D1), voltage-stabiliser tube (Z1) and resistance (R3) is in parallel forms.
4. a kind of high-power thyristor final stage trigger equipment according to claim 1, is characterized in that: output current shaping circuit (3) by be connected across the fast diode (D3) between signal source G, K and be connected across pulse transformer (T1) and fast diode (D3) between fast diode (D2) form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420412639.6U CN203967960U (en) | 2014-07-24 | 2014-07-24 | A kind of high-power thyristor final stage trigger equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420412639.6U CN203967960U (en) | 2014-07-24 | 2014-07-24 | A kind of high-power thyristor final stage trigger equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203967960U true CN203967960U (en) | 2014-11-26 |
Family
ID=51928502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420412639.6U Expired - Fee Related CN203967960U (en) | 2014-07-24 | 2014-07-24 | A kind of high-power thyristor final stage trigger equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203967960U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104916389A (en) * | 2015-07-03 | 2015-09-16 | 江苏容天机电科技有限公司 | Large-power unidirectional excitation pulse transformer demagnetizer |
| CN111786542A (en) * | 2020-07-29 | 2020-10-16 | 浙江方圆电气设备检测有限公司 | Thyristor Triggering System and Triggering Method Based on Isolated Power Supply |
-
2014
- 2014-07-24 CN CN201420412639.6U patent/CN203967960U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104916389A (en) * | 2015-07-03 | 2015-09-16 | 江苏容天机电科技有限公司 | Large-power unidirectional excitation pulse transformer demagnetizer |
| CN111786542A (en) * | 2020-07-29 | 2020-10-16 | 浙江方圆电气设备检测有限公司 | Thyristor Triggering System and Triggering Method Based on Isolated Power Supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170418 Address after: 710077 Xi'an high tech Zone, Shaanxi Jin Industry Road, No. 85 Co-patentee after: Xi'an Kaitian Railway Electric Co., Ltd. Patentee after: XI'AN KAITIAN POWER ELECTRONICS TECHNOLOGY CO., LTD. Address before: 710077 Xi'an high tech Zone, Shaanxi Jin Industry Road, No. 85 Patentee before: XI'AN KAITIAN POWER ELECTRONICS TECHNOLOGY CO., LTD. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141126 Termination date: 20190724 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |