CN203800910U - Thyristor valve body - Google Patents
Thyristor valve body Download PDFInfo
- Publication number
- CN203800910U CN203800910U CN201320823452.0U CN201320823452U CN203800910U CN 203800910 U CN203800910 U CN 203800910U CN 201320823452 U CN201320823452 U CN 201320823452U CN 203800910 U CN203800910 U CN 203800910U
- Authority
- CN
- China
- Prior art keywords
- thyristor
- valve body
- capacitor
- electronic board
- parallel connection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000003990 capacitor Substances 0.000 claims abstract description 60
- 238000010521 absorption reaction Methods 0.000 claims abstract description 23
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 9
- 229910052710 silicon Inorganic materials 0.000 claims description 9
- 239000010703 silicon Substances 0.000 claims description 9
- 239000003381 stabilizer Substances 0.000 claims description 8
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 6
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Abstract
The utility model relates to a thyristor valve body which comprises a thyristor electronic plate and an anti-parallel thyristor. The anti-parallel thyristor is in parallel connection with three capacitors. Two ends of the thyristor electronic plate are respectively connected with one capacitor and two ends of the central capacitor of the three capacitors. The three capacitors and the capacitors disposed at two ends of the thyristor electronic plate form one capacitor with four taps. The thyristor valve body can reduce interference from an absorption circuit to a TE plate, and improves the accuracy of the triggering and detection of the TE plate.
Description
Technical field:
The utility model relates to a kind of thyristor valve body, more specifically relates to a kind of thyristor valve body of four end capacitors.
Background technology:
Along with the development of power electronic technology, thyristor valve group is widely used in the multiple power domains such as TCR, TSC, controlled high resistance, ice-melt.And thyristor valve can triggered as normal, be the emphasis of the normal work of whole thyristor valve without interruption always.The operation conditions of thyristor valve mainly relies on triggering accurately and the correct two-part performance of detection to evaluate.Guarantee that these two kinds of functions are normal, matter of utmost importance is exactly the thyristor electronic board reliability of getting energy loop of (Thyristor Electronics is called for short TE plate).The TE plate that traditional thyristor valve body adopts triggers thyristor, and its resistance-capacitance absorption loop is also that getting of TE plate can loop.Be that capacitance-resistance loop is not only used as the absorption voltage equalizing protection of thyristor valve, also as the source of TE plate power supply.The drawback of this mode is, the electric current and voltage that TE plate bears is higher, and TE board size is large, and to get loop to be series relationship due to TE plate and thyristor, get can loop easily to TE plate, work causes interference.
Therefore, now adopt a kind of four novel end capacitors, resistance-capacitance absorption loop can be separated to a branch road (current/voltage is less) can loop as getting.Can reduce like this TE plate and bear voltage, thereby reduce TE board size, can also prevent from getting can the loop interference that work causes to TE plate.TE plate is moved more reliably.
Utility model content:
The purpose of this utility model is to provide a kind of thyristor valve body, and this thyristor valve body can be optimized getting of thyristor electronic board can loop, guarantees this thyristor electronic board reliable in function.
For achieving the above object, the utility model by the following technical solutions: a kind of thyristor valve body, this thyristor valve body comprises the thyristor of thyristor electronic board and reverse parallel connection; It is characterized in that: described reverse parallel connection thyristor and three Parallel-connected Capacitors; The two ends of described thyristor electronic board are connected with the capacitor two ends in the middle of being positioned in described three capacitors by a capacitor respectively; The capacitor that the two ends of described three capacitors and described thyristor electronic board are respectively provided with forms an electric capacity and is provided with four taps.
A kind of thyristor valve body that the utility model provides, the capacitance of described three capacitors is respectively 1/3rd of described electric capacity.
A kind of thyristor valve body that the utility model provides, the capacitance of a capacitor of connecting respectively in described thyristor electronic board two ends is a thirtieth of described electric capacity.
Another preferred a kind of thyristor valve body that the utility model provides, is respectively equipped with branch road resistance between described thyristor electronic board two ends and the capacitor being connected separately.
The preferred a kind of thyristor valve body again that the utility model provides, is respectively equipped with absorption resistance between described reverse parallel connection thyristor two ends and each self-corresponding three capacitor two ends of connecting.
Another preferred a kind of thyristor valve body that the utility model provides, described thyristor comprises base, chip and Guan Gai from down to up; Described chip comprises anode-side molybdenum sheet, silicon chip and the cathode side molybdenum sheet axially arranging successively.
Another preferred a kind of thyristor valve body that the utility model provides, described silicon chip comprises and vertically sets gradually Kuo Lin district N+, short base P1, growing base area N, short base P2He heavily doped region P+; Described Kuo Lin district N+ is provided with negative electrode and gate pole, and described heavily doped region P+ is provided with anode; Described silicon chip surrounding is provided with divider wall, and described divider wall surface is provided with axial hole.
Another preferred a kind of thyristor valve body that the utility model provides, getting of described thyristor electronic board can comprise branch road resistance and the capacitor being connected separately with thyristor electronic board two ends in loop; The absorption circuit of described thyristor valve body comprises three capacitors and the absorption resistance being connected with described reverse parallel connection thyristor; Getting for two that connect with described thyristor electronic board can electric capacity and three Absorption Capacitances common composition four end capacitor in parallel with described reverse parallel connection thyristor.
Another preferred a kind of thyristor valve body provided by the invention, the branch road after diode D1 in parallel, the thyristor Ta that described thyristor electronic board comprises and diode D2 series capacitance C1; Described diode D1 and described diode D2 reverse parallel connection, described diode D1 and described thyristor Ta reverse parallel connection; The gate pole series resistance R1 of described thyristor Ta and forward voltage-stabiliser tube Dz, the negative electrode of described voltage-stabiliser tube Dz connects the anode of described diode D2; The two ends of described diode D1 are connected with each self-corresponding described branch road resistance respectively.
Another preferred a kind of thyristor valve body provided by the invention, when the voltage at described reverse parallel connection thyristor two ends rises, described diode D2 is to capacitor C 1 charging, and the voltage when described capacitor C 1 two ends reaches voltage-stabiliser tube D
zvoltage stabilizing value time, D
zconducting, thus for thyristor Ta provides trigger impulse, make Ta conducting; Because diode D2 now bears back-pressure, in cut-off state, played the effect of isolating described capacitor C 1, the voltage in described capacitor C 1 is remained unchanged; Voltage in capacitor C 1 becomes the voltage levvl of TE plate need of work behind power supply conversion loop; When voltage reversal between described reverse parallel connection thyristor two ends, described diode D1 conducting.
With immediate prior art ratio, the utility model provides technical scheme to have following excellent effect
1, thyristor valve body of the present utility model can reduce voltage and the electric current of TE plate, prevents the TE plate scaling loss causing because of overcurrent;
2, thyristor valve body of the present utility model can reduce TE board size, reduces device power, reduces costs;
3, thyristor valve body of the present utility model can reduce the interference that absorption circuit causes TE plate, improves the accuracy that TE plate triggers and detects;
4, thyristor valve body of the present utility model can optimize getting of TE plate can loop, guarantee TE plate reliable in function.
Accompanying drawing explanation
Fig. 1 is the utility model thyristor valve body circuit diagram;
Fig. 2 is four end capacitor circuit diagrams of the present utility model;
Fig. 3 is TE plate circuit diagram of the present invention.
Embodiment
Below in conjunction with embodiment, utility model is described in further detail.
Embodiment 1:
As shown in Figure 1-2, this routine utility model thyristor valve body comprises the thyristor of thyristor electronic board and reverse parallel connection; Described reverse parallel connection thyristor and three capacitor's seriess; The two ends of described thyristor electronic board are connected with the capacitor two ends in the middle of being positioned in described three capacitors by a capacitor respectively.
The capacitance of described three capacitors is respectively 1/3rd of Absorption Capacitance.
The capacitance of a capacitor of connecting respectively in described thyristor electronic board two ends is a thirtieth of described Absorption Capacitance.By above-mentioned 5 capacitors, be assembled into an electric capacity, and 4 taps are set.
Between described thyristor electronic board two ends and the capacitor being connected separately, be respectively equipped with branch road resistance.
Between described reverse parallel connection thyristor two ends and each self-corresponding three capacitor two ends of connecting, be respectively equipped with absorption resistance.
Described thyristor comprises base, chip and Guan Gai from down to up; Described chip comprises anode-side molybdenum sheet, silicon chip and the cathode side molybdenum sheet axially arranging successively.
Described silicon chip comprises and vertically sets gradually Kuo Lin district N+, short base P1, growing base area N, short base P2He heavily doped region P+; Described Kuo Lin district N+ is provided with negative electrode and gate pole, and described heavily doped region P+ is provided with anode; Described silicon chip surrounding is provided with divider wall, and described divider wall surface is provided with axial hole.
Getting of described thyristor electronic board can comprise branch road resistance and the capacitor being connected separately with thyristor electronic board two ends in loop; The absorption circuit of described thyristor valve body comprises three capacitors and the absorption resistance being connected with described reverse parallel connection thyristor.
Getting for two that connect with described thyristor electronic board can electric capacity and three Absorption Capacitances common composition four end capacitor in parallel with described reverse parallel connection thyristor.
Branch road after diode D1 in parallel, the thyristor Ta that described thyristor electronic board comprises and diode D2 series capacitance C1; Described diode D1 and described diode D2 reverse parallel connection, described diode D1 and described thyristor Ta reverse parallel connection; The gate pole series resistance R1 of described thyristor Ta and forward voltage-stabiliser tube Dz, the negative electrode of described voltage-stabiliser tube Dz connects the anode of described diode D2; The two ends of described diode D1 are connected with each self-corresponding described branch road resistance respectively.
Described absorption resistance and branch road resistance sum are about 5 capacitor total impedance X
c1/20; When the voltage at described reverse parallel connection thyristor two ends rises, described diode D2 is to capacitor C 1 charging, and the voltage when described capacitor C 1 two ends reaches voltage-stabiliser tube D
zvoltage stabilizing value time, D
zconducting, thus for thyristor Ta provides trigger impulse, make Ta conducting; Because diode D2 now bears back-pressure, in cut-off state, played the effect of isolating described capacitor C 1, the voltage in described capacitor C 1 is remained unchanged; Voltage in capacitor C 1 becomes the voltage levvl of TE plate need of work behind power supply conversion loop; When voltage reversal between described reverse parallel connection thyristor two ends, described diode D1 conducting, reduces that get can the impact of loop on RC loop.
In the application, change the electric capacity in absorption circuit into four end capacitors, separate a branch road to the power supply of TE plate, can reduce voltage and the electric current of TE plate, reduce TE board size, improve the reliability of TE plate.Described TE plate changes relation in parallel into the relation of absorption circuit by connecting, reduced the interference of absorption circuit to TE plate, improves the accuracy that TE plate triggers and detects.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit, although the utility model is had been described in detail with reference to above-described embodiment, those of ordinary skill in the field are to be understood that: still can modify or be equal to replacement embodiment of the present utility model, and do not depart from any modification of the utility model spirit and scope or be equal to replacement, it all should be encompassed in the middle of this claim scope.
Claims (9)
1. a thyristor valve body, this thyristor valve body comprises the thyristor of thyristor electronic board and reverse parallel connection; It is characterized in that: described reverse parallel connection thyristor and three Parallel-connected Capacitors; The two ends of described thyristor electronic board are connected with the capacitor two ends in the middle of being positioned in described three capacitors by a capacitor respectively; The capacitor that the two ends of described three capacitors and described thyristor electronic board are respectively provided with forms an electric capacity and is provided with four taps.
2. a kind of thyristor valve body as claimed in claim 1, is characterized in that: the capacitance of described three capacitors is respectively 1/3rd of described electric capacity.
3. a kind of thyristor valve body as claimed in claim 2, is characterized in that: the capacitance of a capacitor of connecting respectively in described thyristor electronic board two ends is a thirtieth of described electric capacity.
4. a kind of thyristor valve body as claimed in claim 1, is characterized in that: between described thyristor electronic board two ends and the capacitor being connected separately, be respectively equipped with branch road resistance.
5. a kind of thyristor valve body as claimed in claim 1, is characterized in that: between described reverse parallel connection thyristor two ends and each self-corresponding three capacitor two ends of connecting, be respectively equipped with absorption resistance.
6. a kind of thyristor valve body as claimed in claim 1, is characterized in that: described thyristor comprises base, chip and Guan Gai from down to up; Described chip comprises anode-side molybdenum sheet, silicon chip and the cathode side molybdenum sheet axially arranging successively.
7. a kind of thyristor valve body as claimed in claim 6, is characterized in that: described silicon chip comprises and vertically sets gradually Kuo Lin district N+, short base P1, growing base area N, short base P2He heavily doped region P+; Described Kuo Lin district N+ is provided with negative electrode and gate pole, and described heavily doped region P+ is provided with anode; Described silicon chip surrounding is provided with divider wall, and described divider wall surface is provided with axial hole.
8. a kind of thyristor valve body as claimed in claim 4, is characterized in that: getting of described thyristor electronic board can comprise branch road resistance and the capacitor being connected separately with thyristor electronic board two ends in loop; The absorption circuit of described thyristor valve body comprises three capacitors and the absorption resistance being connected with described reverse parallel connection thyristor; Getting for two that connect with described thyristor electronic board can electric capacity and three Absorption Capacitances common composition four end capacitor in parallel with described reverse parallel connection thyristor.
9. a kind of thyristor valve body as claimed in claim 4, is characterized in that: the branch road after diode D1 in parallel, the thyristor Ta that described thyristor electronic board comprises and diode D2 series capacitance C1; Described diode D1 and described diode D2 reverse parallel connection, described diode D1 and described thyristor Ta reverse parallel connection; The gate pole series resistance R1 of described thyristor Ta and forward voltage-stabiliser tube Dz, the negative electrode of described voltage-stabiliser tube Dz connects the anode of described diode D2; The two ends of described diode D1 are connected with each self-corresponding described branch road resistance respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320823452.0U CN203800910U (en) | 2013-12-12 | 2013-12-12 | Thyristor valve body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320823452.0U CN203800910U (en) | 2013-12-12 | 2013-12-12 | Thyristor valve body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203800910U true CN203800910U (en) | 2014-08-27 |
Family
ID=51383094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320823452.0U Expired - Lifetime CN203800910U (en) | 2013-12-12 | 2013-12-12 | Thyristor valve body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203800910U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104716937A (en) * | 2013-12-12 | 2015-06-17 | 国家电网公司 | Thyristor valve body |
-
2013
- 2013-12-12 CN CN201320823452.0U patent/CN203800910U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104716937A (en) * | 2013-12-12 | 2015-06-17 | 国家电网公司 | Thyristor valve body |
| CN104716937B (en) * | 2013-12-12 | 2018-06-05 | 国家电网公司 | A kind of thyristor valve body |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee after: GLOBAL ENERGY INTERCONNECTION Research Institute Patentee after: State Grid Corporation of China Co-patentee after: CHINA EPRI SCIENCE & TECHNOLOGY Co.,Ltd. Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee before: STATE GRID SMART GRID Research Institute Patentee before: State Grid Corporation of China Co-patentee before: CHINA EPRI SCIENCE & TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170523 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee after: GLOBAL ENERGY INTERCONNECTION Research Institute Patentee after: State Grid Corporation of China Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee before: GLOBAL ENERGY INTERCONNECTION Research Institute Patentee before: State Grid Corporation of China Co-patentee before: CHINA EPRI SCIENCE & TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140827 |