CN202550906U - DC (Direct Current) high voltage generator - Google Patents
DC (Direct Current) high voltage generator Download PDFInfo
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- CN202550906U CN202550906U CN2012201355799U CN201220135579U CN202550906U CN 202550906 U CN202550906 U CN 202550906U CN 2012201355799 U CN2012201355799 U CN 2012201355799U CN 201220135579 U CN201220135579 U CN 201220135579U CN 202550906 U CN202550906 U CN 202550906U
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Abstract
The utility model relates to a DC (Direct Current) high voltage generator, which comprises a rectifier and filter module, a pulse width modulating power switch, a metal oxide semiconductor (MOS) bridge-type inverter module, an intermediate frequency high voltage transformer, a voltage doubling rectifying module and a high voltage current limiting resistor, wherein an alternating current inputted from outside is received by the rectifier and filter module and is processed by the DC high voltage generator and is converted into a required DC high voltage by the high voltage current limiting resistor; in the DC high voltage generator, because of adoption of an intermediate frequency voltage doubling circuit as well as an application of the pulse-width modulation (PWM) technology and a high-power insulated gate bipolar translator (IGBT) component), so that discharge of a rated voltage without damage to a DC high voltage test can be born. The DC high voltage generator, which adopts a voltage great feedback, has advantages of great improvement of stability of an output voltage, low voltage drift and high rectifying precision.
Description
Technical field
The utility model relates to a kind of high voltage direct current generator that is used for DC high potential test.
Background technology
In existing converting equipment maintenance process, test takes place high direct voltage is one of content item of extensive use.In high direct voltage is tested, generally use high voltage direct current generator as dc high-voltage source, be used for detecting the electric insulation intensity and the leakage current of electrical device specially.
The utility model content
The utility model provides a kind of high voltage direct current generator as dc high-voltage source, is applicable to power department, enterprise's power department, and equipment such as zinc oxide arrester, magnetic blowout arrester, power cable, generator, transformer, switch are carried out DC high potential test.
In order to achieve the above object; The technical scheme of the utility model provides a kind of high voltage direct current generator; Be characterized in, comprise: the rectification filtering module, pulse width modulated power switch, bridge type inverse module, intermediate frequency high-tension transformer, voltage multiplying rectifier module and the high-voltage and current-limitation resistance that connect of circuit successively; Receive the outside alternating current of importing by said rectification filtering module, after handling via said high voltage direct current generator, the place obtains required high direct voltage at said high-voltage and current-limitation resistance.
The output of said pulse width modulated power switch also circuit is connected to the input of a high direct voltage negative feedback module; The output of said high direct voltage negative feedback module and the output of a given module of high direct voltage, circuit is connected to the input of a Pulse Width Modulation Control With circuit respectively; The circuit of output terminal of said Pulse Width Modulation Control With circuit is connected to the control end of said pulse width modulated power switch.
The current value of said voltage multiplying rectifier module output, and the magnitude of voltage of said intermediate frequency high-tension transformer output are connected to said bridge type inverse module and said Pulse Width Modulation Control With circuit via a protective circuit circuit.
Said voltage multiplying rectifier module also is connected with a display module circuit, exports the display voltage value; Said intermediate frequency high-tension transformer also is connected with said display module circuit, exports the demonstration current value.
The said high voltage direct current generator of the utility model; Its advantage is: said high voltage direct current generator is owing to adopt the intermediate frequency voltage-multiplying circuit; And Using P WM pulse modulation technology and high-power IGBT device, in DC high potential test, can bear rated voltage discharge and do not damage.High voltage direct current generator also adopts the big feedback of voltage, so the output voltage stabilization degree is greatly improved, and the voltage drift amount is few, has the higher precision of adjusting.
Description of drawings
Fig. 1 is the operation principle block diagram of the said high voltage direct current generator of the utility model.
Embodiment
As shown in Figure 1; In the said high voltage direct current generator of the utility model, at first be provided with the following plurality of modules of circuit connection successively: rectification filtering module 10, pulse width modulated power switch 20, bridge type inverse module 30, intermediate frequency high-tension transformer 40, voltage multiplying rectifier module 50 and high-voltage and current-limitation resistance 60.Among a kind of embodiment, said rectification filtering module 10 can be to comprise full-bridge and several filter capacitors that is made up of four rectifier diodes.Said pulse width modulated power switch 20 is powerful IGBT pipes.Said bridge type inverse module 30 is made up of some MOSFET pipes.
Wherein, The output of said pulse width modulated power switch 20 also circuit has connected a high direct voltage negative feedback module 21; The output of a said high direct voltage negative feedback module 21 and a given module 90 of high direct voltage; Circuit is connected to a Pulse Width Modulation Control With circuit 22 respectively, is controlled by 22 pairs of said pulse width modulated power switchs 20 of said Pulse Width Modulation Control With circuit.
The output voltage of said voltage multiplying rectifier module 50; And the output current of said intermediate frequency high-tension transformer 40; Via a protective circuit 70, circuit is connected to said bridge type inverse module 30 and said Pulse Width Modulation Control With circuit 22 respectively, is used for pulse-width modulation and bridge type inverse.Said protective circuit 70 relates to current protection and voltage protection.
A display module 80; Circuit is connected said voltage multiplying rectifier module 50 and said intermediate frequency high-tension transformer 40 to the connection line of said protective circuit 70; By said display module 80; The digital quantity of voltage when showing 50 work of said voltage multiplying rectifier module, and the digital quantity of electric current when showing the work of said intermediate frequency high-tension transformer 40.
The 220V alternating current of input after handling via the above-mentioned high voltage direct current generator of the utility model, export required high direct voltage, and the high direct voltage that is used for related device is tested.
Although the content of the utility model has been done detailed introduction through above-mentioned preferred embodiment, will be appreciated that above-mentioned description should not be considered to the restriction to the utility model.After those skilled in the art have read foregoing, for the multiple modification of the utility model with to substitute all will be conspicuous.Therefore, the protection range of the utility model should be limited appended claim.
Claims (4)
1. high voltage direct current generator; It is characterized in that, comprise: the rectification filtering module (10), pulse width modulated power switch (20), bridge type inverse module (30), intermediate frequency high-tension transformer (40), voltage multiplying rectifier module (50) and the high-voltage and current-limitation resistance (60) that connect of circuit successively; Receive the outside alternating current of importing by said rectification filtering module (10), after handling via said high voltage direct current generator, locate to obtain required high direct voltage at said high-voltage and current-limitation resistance (60).
2. high voltage direct current generator according to claim 1 is characterized in that,
The output of said pulse width modulated power switch (20) also circuit is connected to the input of a high direct voltage negative feedback module (21); The output of the output of said high direct voltage negative feedback module (21) and a given module of high direct voltage (90), circuit is connected to the input of a Pulse Width Modulation Control With circuit (22) respectively; The circuit of output terminal of said Pulse Width Modulation Control With circuit (22) is connected to the control end of said pulse width modulated power switch (20).
3. like the said high voltage direct current generator of claim 2, it is characterized in that,
The current value of said voltage multiplying rectifier module (50) output, and the magnitude of voltage of said intermediate frequency high-tension transformer (40) output are connected to said bridge type inverse module (30) and said Pulse Width Modulation Control With circuit (22) via a protective circuit (70) circuit.
4. like the said high voltage direct current generator of claim 3, it is characterized in that,
Said voltage multiplying rectifier module (50) also is connected with a display module (80) circuit, exports the display voltage value; Said intermediate frequency high-tension transformer (40) also is connected with said display module (80) circuit, exports the demonstration current value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201355799U CN202550906U (en) | 2012-03-31 | 2012-03-31 | DC (Direct Current) high voltage generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201355799U CN202550906U (en) | 2012-03-31 | 2012-03-31 | DC (Direct Current) high voltage generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202550906U true CN202550906U (en) | 2012-11-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201355799U Expired - Lifetime CN202550906U (en) | 2012-03-31 | 2012-03-31 | DC (Direct Current) high voltage generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202550906U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104617778A (en) * | 2015-02-10 | 2015-05-13 | 兰州空间技术物理研究所 | Low-current output high-voltage power supply circuit wide in input voltage range and high in load regulation rate |
| CN105182017A (en) * | 2015-09-23 | 2015-12-23 | 中国人民解放军理工大学 | 2000V voltage generating high voltage generation circuit system used for detecting SPD |
| CN105759235A (en) * | 2016-05-12 | 2016-07-13 | 苏州华电电气股份有限公司 | Automatic check platform for high-voltage direct-current voltage divider |
| CN105807195A (en) * | 2016-05-10 | 2016-07-27 | 苏州华电电气股份有限公司 | Multi-arrester series-connection direct-current voltage-resistance compensation device |
| CN107329010A (en) * | 2016-04-28 | 2017-11-07 | 江苏新澳电力技术有限公司 | A kind of 10KV arresters automatic checkout system |
-
2012
- 2012-03-31 CN CN2012201355799U patent/CN202550906U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104617778A (en) * | 2015-02-10 | 2015-05-13 | 兰州空间技术物理研究所 | Low-current output high-voltage power supply circuit wide in input voltage range and high in load regulation rate |
| CN105182017A (en) * | 2015-09-23 | 2015-12-23 | 中国人民解放军理工大学 | 2000V voltage generating high voltage generation circuit system used for detecting SPD |
| CN107329010A (en) * | 2016-04-28 | 2017-11-07 | 江苏新澳电力技术有限公司 | A kind of 10KV arresters automatic checkout system |
| CN105807195A (en) * | 2016-05-10 | 2016-07-27 | 苏州华电电气股份有限公司 | Multi-arrester series-connection direct-current voltage-resistance compensation device |
| CN105759235A (en) * | 2016-05-12 | 2016-07-13 | 苏州华电电气股份有限公司 | Automatic check platform for high-voltage direct-current voltage divider |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121121 |