CN206164394U - Multistage voltage -multiplying low ripple high voltage DC generating device - Google Patents
Multistage voltage -multiplying low ripple high voltage DC generating device Download PDFInfo
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- CN206164394U CN206164394U CN201621116292.6U CN201621116292U CN206164394U CN 206164394 U CN206164394 U CN 206164394U CN 201621116292 U CN201621116292 U CN 201621116292U CN 206164394 U CN206164394 U CN 206164394U
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Abstract
The utility model discloses a multistage voltage -multiplying low ripple high voltage DC generating device's technical scheme, including alternating current power supply input, with alternating current power supply input mutually the full wave rectification filter circuit that connects of electricity, with full wave rectification filter circuit mutually the high frequency pulse width modulation circuit that connects of electricity, with high frequency pulse width modulation circuit mutually the LC filter circuit that connects of electricity, with LC filter circuit mutually the high frequency inverter circuit that connects of electricity, with high frequency inverter circuit mutually the isolation stepup transformer connected of electricity, with the isolation stepup transformer all -wave voltage doubler rectifier circuit that connects of electricity mutually, with all -wave voltage doubler rectifier circuit mutually the high pressure examination article connected of electricity, and the high pressure examination article high -voltage bleeder of electricity connection mutually, the output of high -voltage bleeder electricity connect voltage sample AD circuit the electric junction current of high pressure examination article sample AD circuit, voltage sample AD circuit, current sampling AD circuit insert the singlechip, the singlechip still with serial ports RS232 drive 11, key button, LCD display screen mutually the electricity be connected.
Description
Technical field
The utility model is related to a kind of multistage multiplication of voltage low ripple high direct voltage generating means, belongs to test and automatically controls skill
Art field.
Background technology
With developing rapidly for power electronics and computer technology, HVDC Transmission Technology is gradually improved, in conveying capacity and
Power transmission can be competed with extra-high-voltage alternating current apart from upper.Multi-terminal HVDC transmission technology also achieves some operating experiences, therefore to electricity
The high pressure of power material and facility and extra-high voltage direct-current test are particularly important.In addition with the enforcement of electric network reconstruction plan, greatly
The twisted polyethylene cable of amount is widely used with its excellent performance.In order to ensure the crosslinked polyethylene electric power after laying
The safe operation of cable, needs to carry out DC high potential test to it.In addition, power industry is to Zinc-Oxide Arrester, magnetic blow-out
The equipment such as arrester, generator, transformer, switch carry out being also required to carry out DC high potential test.
At present, at aspects such as function, parameter and processs of the test, each producer's Product Level is or not domestic high voltage direct current generator
First, it is uneven.The utility model is the requirement according to domestic Duo Jia test units to product, comprehensive domestic each high direct voltage examination
Test the products characteristics of equipment manufacturer, the low-ripple coefficient of development, the high voltage direct current generator of high stability.
The utility model is related to a kind of multistage multiplication of voltage low ripple high direct voltage generating means, and the device is in electric pressure, standard
The parameters such as exactness, stability, ripple factor aspect has very high performance.The utility model takes the lead in being adjusted using newest PWM pulsewidths
Technology processed and high-power IGBT device.And it is theoretical according to Electro Magnetic Compatibility, using measures such as special shielding, isolation and ground connection, make
DC high potential test realizes the scientific experimentation of high-quality, accuracy.
The content of the invention
The utility model purpose is to provide a kind of multistage multiplication of voltage low ripple direct current height to overcome the deficiencies in the prior art
Pressure generating apparatus, the device is in the case of output high direct voltage, extra-high voltage, to realize the high stability and low line of output voltage
Wave system number, be this time using new PWM pulse modulation technologies and high-power IGBT device, devise the auxiliary winding all-wave 6 of all-wave two
Rank voltage doubling rectifing circuit, the high-voltage bleeder for devising pinpoint accuracy, are greatly lowered the ripple factor of output high direct voltage.
To reach above-mentioned purpose, the technical solution adopted in the utility model is：A kind of multistage multiplication of voltage low ripple high direct voltage
Generating means, including AC power is input into, input is electrically connected for alternating current to be changed into directly with AC power input
The stream full-wave rectifier filter circuit of voltage signal, input and the output end of described full-wave rectifier filter circuit are electrically connected use
High-frequency pulsed width modulation circuit, input in the pulse signal that d. c. voltage signal is changed into pulse width variability and described high frequency arteries and veins
The output end of wide modulation circuit is electrically connected for pulse signal to be changed into into the direct current signal that amplitude changes with pulsewidth difference
LC filter circuits, input are electrically connected with the output end of described LC filter circuits and fixed for direct current signal to be changed into into pulsewidth
The high-frequency inverter circuit of pulse signal, input and the output end of described high-frequency inverter circuit be electrically connected for will be fixed
Width pulse signal increases substantially the output end phase of the isolation boosting device of electric pressure, input and described isolation boosting device
Electrically connect the full-wave voltage doubler for high-voltage AC signal to be changed into high-voltage dc signal, input and described all-wave
High pressure test product that the output end of voltage doubling rectifing circuit is electrically connected, input and described high pressure test product be electrically connected for by than
Example obtains the high-voltage bleeder of voltage and current information on test product, the output electrical connection voltage sampling A/D of the high-voltage bleeder
Circuit, high pressure test product electrical connection current sampling A/D circuits, the voltage sampling A/D circuits, current sampling A/D circuits
Output data accesses single-chip microcomputer, while single-chip microcomputer is also electrically connected with serial ports RS232 drivings, button, LCD display, to it
Be controlled and manage.
Optimally, isolating transformer has an armature winding and two secondary level windings, and its armature winding is defeated with high-frequency inversion
The output end for going out is connected, and the different name end of the first secondary grade winding is connected and connects with ground with the Same Name of Ends of the second secondary grade winding,
Each secondary level winding is connected with 6 rank voltage-multiplying circuits, and the symmetrical setting of multistage voltage-multiplying circuit on two secondary level windings, due to
Multistage voltage-multiplying circuit is symmetrically provided with two secondary windings of transformer, the relative ripple current of two-way circuit can mutually offset
Disappear, the exponent number of appropriate adjustment voltage-multiplying circuit and the size of electric capacity, the ripple that can cause output voltage greatly reduces.
Optimally, it is considered to voltage divider resistor itself when affecting three factors, i.e. high pressure of the high-voltage bleeder degree of accuracy
Heating（Or variation of ambient temperature）It is exhausted when corona discharge causes measure error, high pressure when causing divider resistance change in resistance, high pressure
The electric leakage of edge support causes measure error, correspondingly using High-temperature stabilization element（Or positive and negative temperature element (TE combination）, divider fills
The methods such as insulating oil, increase shielding resistance, improve the voltage degree of accuracy of divider.
It is in of the present utility model, single-chip microcomputer control technology, A/D technologies, D/A technologies, Simulation scale-up technology, frequency conversion is inverse
The integrated applications such as change, full wave and voltage doubling commutation technique, accurate high-voltage bleeder technology, high-power IGBT device and its actuation techniques.
Due to adopting above-mentioned technical proposal, the beneficial effects of the utility model：In output high direct voltage, extra-high voltage situation
Under, realize high accuracy, low-ripple coefficient and the high stability of output voltage.
Description of the drawings
Accompanying drawing 1 is the multistage multiplication of voltage low ripple high direct voltage generating means theory diagram of the utility model；
Accompanying drawing 2 is the utility model full wave and voltage doubling rectification theory diagram.
Specific embodiment
The multistage multiplication of voltage low ripple high direct voltage generating means of the utility model, can produce the high pressure of low-ripple coefficient, extra-high
Pressure, with LCD screen human-computer dialogue is realized, devising RS232 interfaces can refer to host computer transmission data while receiving PC control
Order.
The utility model embodiment is described in detail below in conjunction with accompanying drawing 1：
The technical scheme of multistage multiplication of voltage low ripple high direct voltage generating means as shown in Figure 1, including AC power input
1 full-wave rectifier filter circuit 2 being electrically connected with AC power input and described full-wave rectifier filter circuit 2 are mutually electric
LC filter circuits 4 that the high-frequency pulsed width modulation circuit 3 of connection and described high-frequency pulsed width modulation circuit 3 are electrically connected and described
The high-frequency inverter circuit 5 that is electrically connected of LC filter circuits 4 and the isolation boosting that is electrically connected of described high-frequency inverter circuit 5
The full-wave voltage doubler 7 that device 6 and described isolation boosting device 6 are electrically connected, with described full-wave voltage doubler 7
The high-voltage bleeder 9 that the high pressure test product 8 and described high pressure test product 8 being electrically connected is electrically connected, the high-voltage bleeder 9
Output electrical connection voltage sampling A/D circuit 15, the high pressure test product 8 electrical connection current sampling A/D circuits 14, the voltage sampling
A/D circuits 15, current sampling A/D circuits 14 access single-chip microcomputer 12, and the single-chip microcomputer 12 also drives 11, button with serial ports RS232
Button 10, LCD display 13 are electrically connected.
High-voltage bleeder 9 described in Fig. 1 is T-shaped wave filter, using positive and negative temperature element (TE High-temperature stabilization element in combination
Design, while filling insulating oil, increasing the shielding method such as resistance using divider, improve the voltage degree of accuracy of divider.
The circuit of voltage sampling A/D described in Fig. 1 15, is that the high pressure in proportion reducing the high-voltage bleeder 9 carries out mould
Number conversion simultaneously send the single-chip microcomputer 12 to carry out data processing；The current sampling A/D circuits 14, are electrically connected with the high pressure test product 8
Connect, send the single-chip microcomputer 12 to carry out data processing test product current data.
Single-chip microcomputer 12 described in Fig. 1 adjusts the height by adjusting the pulse width of the high-frequency pulsed width modulation circuit 3
Output high pressure on pressure test product 8.
High-frequency inverter circuit 5 described in Fig. 1 is made up of high-power IGBT device and its drive circuit, receives and process described
The pulse signal of the fixed pulse width that single-chip microcomputer 12 sends.
The utility model embodiment is described in detail below in conjunction with accompanying drawing 2：
It is illustrated in figure 2 the full wave and voltage doubling rectification principle of the multistage multiplication of voltage low ripple high direct voltage generating means of the utility model
Figure, the output of the output of high-frequency inversion described in figure 21 is electrically connected with the armature winding of isolating transformer 22, the isolation transformation
The secondary output of device 22 has 2 windings, 12 fast recovery diodes 24, and 9 electric capacity 23 is connect altogether, from repoussage again
The end of stream obtains High voltage output 25.
Isolating transformer described in Fig. 2 has an armature winding and two secondary level windings, its armature winding and high-frequency inversion
The output end of output is connected, the different name end of the first secondary grade winding be connected with the Same Name of Ends of the second pair grade winding and with ground phase
Connect, each secondary level winding is connected with the symmetrical setting of multistage voltage-multiplying circuit on 6 rank voltage-multiplying circuits, and two secondary level windings, by
In multistage voltage-multiplying circuit is symmetrically provided with two secondary windings of transformer, the relative ripple current of two-way circuit can be mutual
Offset, the exponent number of appropriate adjustment voltage-multiplying circuit and the size of electric capacity, the ripple that can cause output voltage greatly reduces.
The multistage multiplication of voltage low ripple high direct voltage generating means implemented to the utility model above is explained and says
Bright, it can be used for producing low-ripple coefficient, high accuracy, the high direct voltage signal of high stability.The utility model has aobvious
The technological progress of work should be able to bring considerable economic benefit.
Above-described embodiment technology design only to illustrate the invention and feature, its object is to allow and are familiar with this art
Personage will appreciate that present disclosure and be carried out, can not be limited the scope of the invention with this, all according to this
Equivalence changes or modification that bright Spirit Essence is made, all should cover within the scope of the present invention.
Claims (2)
1. a kind of multistage multiplication of voltage low ripple high direct voltage generating means, it is characterised in that：Including AC power input, input with
Full-wave rectifier filter circuit, input that the AC power input is electrically connected for alternating current to be changed into d. c. voltage signal
It is electrically connected for the pulse that d. c. voltage signal is changed into pulse width variability with the output end of described full-wave rectifier filter circuit
The high-frequency pulsed width modulation circuit of signal, input and the output end of described high-frequency pulsed width modulation circuit are electrically connected for by arteries and veins
Rush LC filter circuits, input and described LC filter circuits that signal changes into the direct current signal that amplitude changes with pulsewidth difference
Output end be electrically connected for the high-frequency inverter circuit of pulse signal, input and the institute that direct current signal is changed into pulsewidth fixation
The output end of the high-frequency inverter circuit stated be electrically connected for by fixed pulse width pulse signal increase substantially electric pressure every
It is electrically connected for high-voltage AC signal to be changed into into high straightening from stepup transformer, input and the output end of described isolation boosting device
The full-wave voltage doubler of stream signal, the high pressure that input is electrically connected with the output end of described full-wave voltage doubler
Test product, input are electrically connected for the high pressure point for obtaining voltage and current information on test product in proportion with described high pressure test product
Depressor, the output electrical connection voltage sampling A/D circuits of the high-voltage bleeder, high pressure test product electrical connection current sampling A/D
Circuit, the voltage sampling A/D circuits, current sampling A/D circuits output data access single-chip microcomputer, while single-chip microcomputer also with string
They are controlled and are managed by mouth RS232 drivings, button, LCD display electrical connection.
2. a kind of multistage multiplication of voltage low ripple high direct voltage generating means according to claim 1, it is characterised in that：Isolation transformation
Utensil has an armature winding and two secondary level windings, and the output end that its armature winding is exported with high-frequency inversion is connected, and first is secondary
The different name end of level winding is connected and connects with ground with the Same Name of Ends of the second secondary grade winding, and each secondary level winding is connected with 6 ranks times
The symmetrical setting of multistage voltage-multiplying circuit in volt circuit, and two secondary level windings, due on two secondary windings of transformer
Multistage voltage-multiplying circuit is symmetrically provided with, the relative ripple current of two-way circuit can cancel each other, appropriate adjustment voltage-multiplying circuit
Exponent number and electric capacity size, the ripple that can cause output voltage greatly reduces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621116292.6U CN206164394U (en) | 2016-10-12 | 2016-10-12 | Multistage voltage -multiplying low ripple high voltage DC generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621116292.6U CN206164394U (en) | 2016-10-12 | 2016-10-12 | Multistage voltage -multiplying low ripple high voltage DC generating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206164394U true CN206164394U (en) | 2017-05-10 |
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ID=58653160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621116292.6U Expired - Fee Related CN206164394U (en) | 2016-10-12 | 2016-10-12 | Multistage voltage -multiplying low ripple high voltage DC generating device |
Country Status (1)
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| CN (1) | CN206164394U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106452160A (en) * | 2016-10-12 | 2017-02-22 | 苏州科技大学 | Multi-order voltage-multiplying low-ripple-wave direct-current high-voltage generation apparatus |
| CN108233715A (en) * | 2018-02-27 | 2018-06-29 | 国网安徽省电力公司电力科学研究院 | A kind of integrated voltage multiplying rectifier cylinder of ultra-high-voltage DC generator |
| CN109327013A (en) * | 2018-11-05 | 2019-02-12 | 苏州科技大学 | A kind of series resonance test overtemperature protection system |
-
2016
- 2016-10-12 CN CN201621116292.6U patent/CN206164394U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106452160A (en) * | 2016-10-12 | 2017-02-22 | 苏州科技大学 | Multi-order voltage-multiplying low-ripple-wave direct-current high-voltage generation apparatus |
| CN108233715A (en) * | 2018-02-27 | 2018-06-29 | 国网安徽省电力公司电力科学研究院 | A kind of integrated voltage multiplying rectifier cylinder of ultra-high-voltage DC generator |
| CN108233715B (en) * | 2018-02-27 | 2024-03-19 | 国网安徽省电力公司电力科学研究院 | Integral voltage doubling rectifying cylinder of extra-high voltage direct current generator |
| CN109327013A (en) * | 2018-11-05 | 2019-02-12 | 苏州科技大学 | A kind of series resonance test overtemperature protection system |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170510 Termination date: 20171012 |
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| CF01 | Termination of patent right due to non-payment of annual fee |