CN108462379A - A kind of direct current is double to apply high-voltage great-current experiment power supply ripple suppression circuit - Google Patents
A kind of direct current is double to apply high-voltage great-current experiment power supply ripple suppression circuit Download PDFInfo
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- CN108462379A CN108462379A CN201810272278.2A CN201810272278A CN108462379A CN 108462379 A CN108462379 A CN 108462379A CN 201810272278 A CN201810272278 A CN 201810272278A CN 108462379 A CN108462379 A CN 108462379A
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- capacitance
- capacitor group
- power supply
- voltage
- double
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/14—Arrangements for reducing ripples from dc input or output
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/14—Arrangements for reducing ripples from dc input or output
- H02M1/143—Arrangements for reducing ripples from dc input or output using compensating arrangements
Abstract
The application discloses a kind of double application high-voltage great-current experiment power supply ripple suppression circuits of direct current, and the ripple suppression circuit includes AC inverter, the first capacitor group C1With the second capacitance C2, the first capacitor group C1Connect the AC inverter output end；The second capacitance C2It is attempted by the first capacitor group C1Both ends；The first capacitor group C1Capacitance be 10F；The second capacitance C2Capacitance be 100nF；The second capacitance C2It is connected with load.The application passes through large capacity the first capacitor group C1With the second capacitance of low capacity C2Parallel connection realizes the control of high-voltage great-current experiment power supply output voltage ripple coefficient within 3%.
Description
Technical field
This application involves power electronics field, more particularly to the double high-voltage great-current experiment power supplies that apply of a kind of direct current are used
Ripple suppression circuit.
Background technology
When researching DC primary equipment bears the operation characteristic of DC voltage and DC current simultaneously, a set of energy is developed
The device of DC high voltage and D.C. high-current is provided simultaneously.But it is changed into the big electricity of direct current through AC inverter in alternating current
It will produce certain ripple when stream, the high fdrequency component in ripple can cause test product centainly to damage.
In existing ripple suppression circuit, Ripple Suppression is carried out primarily directed to low pressure, low current.And it is directed to DC equipment
In Ripple Suppression measure, exist only in current conversion station at present.So to solve output voltage ripple system in experiment power supply equipment
The excessive phenomenon of number, it is necessary to design a set of ripple suppression circuit suitable for the equipment.
Invention content
The application's is designed to provide a kind of double application high-voltage great-current experiment power supply ripple suppression circuits of direct current, with
Solve the problems, such as that existing high-voltage great-current experiment power supply output voltage ripple coefficient is excessive.
According to an embodiment of the present application, a kind of double application high-voltage great-current experiment power supply Ripple Suppression electricity of direct current are provided
Road, which is characterized in that the ripple suppression circuit includes AC inverter, the first capacitor group C1With the second capacitance C2, described
One capacitor group C1Connect the AC inverter output end；
The second capacitance C2It is attempted by the first capacitor group C1Both ends；
The first capacitor group C1Capacitance be 10F；
The second capacitance C2Capacitance be 100nF；
The second capacitance C2It is connected with load.
Further, the first capacitor group C1It is 20000 μ F/100V electrolysis electricity including series-parallel several capacity
Hold.
Further, the AC inverter is full-bridge rectification structure.
Further, the AC inverter includes the silicon stack of four 3000A power.
By above technical scheme, it is found that the embodiment of the present application provides, a kind of direct current is double to apply high-voltage great-current experiment power supplies use
Ripple suppression circuit, the ripple suppression circuit include AC inverter, the first capacitor group C1With the second capacitance C2, described
One capacitor group C1Connect the AC inverter output end；The second capacitance C2 is attempted by the first capacitor group C1Two
End；The first capacitor group C1Capacitance be 10F；The second capacitance C2Capacitance be 100nF；Second capacitance
C2It is connected with load.The application passes through large capacity the first capacitor group C1With the second capacitance of low capacity C2The big electricity of high pressure is realized in parallel connection
The control of experiment power supply output voltage ripple coefficient is flowed within 3%.
Description of the drawings
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the application
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is to apply high-voltage great-current experiment power supply Ripple Suppression according to a kind of direct current shown in the embodiment of the present application is double
The schematic diagram of circuit；
Fig. 2 is to apply high-voltage great-current experiment power supply Ripple Suppression according to a kind of direct current shown in the embodiment of the present application is double
The artificial circuit figure of circuit；
Fig. 3 is to apply high-voltage great-current experiment power supply Ripple Suppression according to a kind of direct current shown in the embodiment of the present application is double
The simulation result diagram of circuit；
Fig. 4 is to apply high-voltage great-current experiment power supply Ripple Suppression according to a kind of direct current shown in the embodiment of the present application is double
The simulation result voltage waveform detail view of circuit.
Specific implementation mode
Voltage ripple precisely due to the voltage fluctuation of DC stable power supply and caused by a kind of phenomenon because DC stabilization is electric
Source is usually to be formed by links such as the rectified voltage stabilizings of AC power, this just inevitably how many band in DC stabilization amount
There are some Alternating Components, this AC compounent being superimposed upon in DC stabilization amount to be just referred to as ripple.DC voltage should
It is a fixed value, but many times it after ac voltage rectifier, filtering by getting, it is clean due to filtering,
Remaining alternating component is just had, even with battery powered also ripple can be generated because of the fluctuation of load.In fact, even
Best reference voltage source device, output voltage are also ripply.
Specifically, when experiment power supply is ac current source, the alternating current of ac current source output is through AC power frequency electricity
Direct current is converted to after stream source inventer, in transfer process, can be synchronized and be generated certain voltage ripple, to eliminate the voltage ripple,
A kind of ripple suppression circuit inhibition voltage ripple is urgently designed, the excessive phenomenon of ripple coefficient of voltage is avoided the occurrence of.
Refering to fig. 1, the embodiment of the present application provides a kind of direct current double application high-voltage great-current experiment power supplies Ripple Suppression electricity
Road, the ripple suppression circuit include AC inverter, the first capacitor group C1With the second capacitance C2；
The first capacitor group C1The AC inverter output end is connected, to realize voltage stabilizing and Ripple Suppression.Line
Wave inhibition has avoided the occurrence of following harm：1, be easy to generate undesirable harmonic wave in equipment in use, and harmonic wave will produce it is more
Harm；2, the efficiency of power supply is reduced；3, stronger ripple can cause the generation of surge voltage or electric current, lead to burn electricity consumption setting
It is standby；4, the logical relation that can interfere digital circuit influences its normal work.
The AC inverter is to become direct current by oscillating circuit first, is then carried out to direct current with electronic component
Switch becomes alternating current, and the larger frequency converter of general power device that is silicon-controlled, and setting an adjustable frequency makes frequency one
Determining the adjustable revolution for being used for controlling motor in range makes revolution adjustable AC inverter in a certain range.
The second capacitance C2It is attempted by the first capacitor group C1Both ends, to filter out higher hamonic wave.
The interference of higher hamonic wave and general radio electromagnetsm, higher hamonic wave passes through conduction, electromagnetic radiation and inductively
Three kinds of modes generate harmonic pollution to power supply and neighbouring electrical equipment.Conduction refers to that higher hamonic wave is diverted to according to respective impedance
Power-supply system and load in parallel generate interference to electrical equipment in parallel.Refer to inductively during conduction, with change
The conducting wire of frequency device output line parallel lay-up will produce electromagnetic coupling and forms inductive interference again.Electromagnetic radiation refers to the high order of output end
Harmonic wave also will produce radiation effects, and interference is generated to neighbouring radio and electronic equipment.
In the embodiment of the present application, pass through the first capacitor group C1With the second capacitance C2Cooperation to complete direct current double
Apply the work of high-voltage great-current experiment power supply Ripple Suppression, the first capacitor group C1It is responsible for realizing voltage stabilizing and ripple
Inhibit, avoids because being adversely affected caused by the appearance of ripple.The second capacitance C2It is responsible for filtering out higher hamonic wave.
The capacitance of the first capacitor group C1 be 10F, the first capacitor group C1 have capacity is big, element number is more,
The features such as voltage class is high.The first capacitor group C1 that capability value is 10F can effectively voltage stabilizing and inhibition ripple.
The second capacitance C2Capacitance be 100nF, the second capacitance C under the capability value2High order can be effectively filtered out
Harmonic wave.
The second capacitance C2It is connected with load.In the embodiment of the present application, load is test product.
By above technical scheme, it is found that the embodiment of the present application provides, a kind of direct current is double to apply high-voltage great-current experiment power supplies use
Ripple suppression circuit, the ripple suppression circuit include AC inverter, the first capacitor group C1With the second capacitance C2, described
One capacitor group C1Connect the AC inverter output end；The second capacitance C2 is attempted by the first capacitor group C1 two
End；The first capacitor group C1Capacitance be 10F；The second capacitance C2Capacitance be 100nF；Second capacitance
C2It is connected with load.The application passes through large capacity the first capacitor group C1With the second capacitance of low capacity C2The big electricity of high pressure is realized in parallel connection
The control of experiment power supply output voltage ripple coefficient is flowed within 3%.
Further, it is 20000 μ F/100V electrolysis electricity that the first capacitor group C1, which includes series-parallel several capacity,
Hold.
Specifically, electrolytic capacitor is one kind of capacitance, metal foil is positive (aluminium or tantalum), and the oxidation of metal is close to anode
Film (aluminium oxide or tantalum pentoxide) is dielectric, and cathode is by conductive material, electrolyte (electrolyte can be liquid or solid)
It is collectively constituted with other materials, because electrolyte is the major part of cathode, therefore electrolytic capacitor is gained the name, it should be noted that
The electrolytic capacitor is positive and negative can not wrong.
Further, the AC inverter is full-bridge rectification structure.
Further, the AC inverter includes the silicon stack of four 3000A power.
Specifically, silicon stack is also rectifying block, exactly the rectification circuit that several diodes form is encapsulated in resin together,
The rectification circuit of formation.High voltage silicon rectifier stack is composed in series by more kenotrons (silicon grain), and being will exchange in high-voltage rectifying
Become the essential original paper of direct current.
By above technical scheme, it is found that the embodiment of the present application provides, a kind of direct current is double to apply high-voltage great-current experiment power supplies use
Ripple suppression circuit, the ripple suppression circuit include AC inverter, the first capacitor group C1With the second capacitance C2, described
One capacitor group C1Connect the AC inverter output end；The second capacitance C2It is attempted by the first capacitor group C1Two
End；The first capacitor group C1Capacitance be 10F；The second capacitance C2Capacitance be 100nF；Second capacitance
C2It is connected with load.The application passes through large capacity the first capacitor group C1With the second capacitance of low capacity C2The big electricity of high pressure is realized in parallel connection
The control of experiment power supply output voltage ripple coefficient is flowed within 3%.
To verify the effect of the ripple suppression circuit in the embodiment of the present application, said in the form of modeling and simulating
It is bright.
Referring to Fig.2, Fig. 2 is a kind of double artificial circuits for applying high-voltage great-current experiment power supply ripple suppression circuit of direct current
The case where figure is the power-frequency voltage and high-frequency harmonic occurred in Simulation field test chooses the power frequency electric potential source that virtual value is 40V
Superposition virtual value is the high frequency voltage source that 4V frequencies are 50kHz.
Comparison of wave shape before and after rectifying and wave-filtering, specific as shown in Figure 3 and Figure 4, wherein E1 show input voltage, E2 is shown
Output voltage, by comparison as can be seen that by after filter unit, ripple coefficient is substantially reduced, imitative in the embodiment of the present application
The output DC voltage ripple coefficient of true experiment is 0.16%, illustrates that the direct current in the application is double and applies high-voltage great-current experiment electricity
Source ripple suppression circuit has the effect of good inhibition ripple.
It should be noted that ripple coefficient is that the ratio between AC compounent and DC voltage are known as ripple coefficient in direct current, use
To weigh filtering quality.
Those skilled in the art will readily occur to its of the application after considering specification and putting into practice application disclosed herein
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the application, these modifications, purposes or
Person's adaptive change follows the general principle of the application and includes the undocumented common knowledge in the art of the application
Or conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the application are by following
Claim is pointed out.
It should be understood that the application is not limited to the precision architecture for being described above and being shown in the accompanying drawings, and
And various modifications and changes may be made without departing from the scope thereof.Scope of the present application is only limited by the accompanying claims.
Claims (4)
1. a kind of direct current is double to apply high-voltage great-current experiment power supply ripple suppression circuit, which is characterized in that the ripple inhibits
Circuit includes AC inverter, the first capacitor group C1With the second capacitance C2, the first capacitor group C1It is inverse to connect the exchange
Become device output end；
The second capacitance C2It is attempted by the first capacitor group C1Both ends；
The first capacitor group C1Capacitance be 10F；
The second capacitance C2Capacitance be 100nF；
The second capacitance C2It is connected with load.
2. a kind of direct current according to claim 1 is double to apply high-voltage great-current experiment power supply ripple suppression circuit, spy
Sign is, the first capacitor group C1It is 20000 μ F/100V electrolytic capacitors including series-parallel several capacity.
3. a kind of direct current according to claim 1 is double to apply high-voltage great-current experiment power supply ripple suppression circuit, spy
Sign is that the AC inverter is full-bridge rectification structure.
4. a kind of direct current according to claim 3 is double to apply high-voltage great-current experiment power supply ripple suppression circuit, spy
Sign is that the AC inverter includes the silicon stack of four 3000A power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810272278.2A CN108462379A (en) | 2018-03-29 | 2018-03-29 | A kind of direct current is double to apply high-voltage great-current experiment power supply ripple suppression circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810272278.2A CN108462379A (en) | 2018-03-29 | 2018-03-29 | A kind of direct current is double to apply high-voltage great-current experiment power supply ripple suppression circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108462379A true CN108462379A (en) | 2018-08-28 |
Family
ID=63237229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810272278.2A Pending CN108462379A (en) | 2018-03-29 | 2018-03-29 | A kind of direct current is double to apply high-voltage great-current experiment power supply ripple suppression circuit |
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| CN (1) | CN108462379A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113708647A (en) * | 2021-08-30 | 2021-11-26 | 西安铁路职业技术学院 | Frequency conversion-power frequency combined driving system for large and medium-sized equipment |
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| CN101753008A (en) * | 2008-12-11 | 2010-06-23 | 阿尔特拉公司 | Integrated circuit decoupling capacitors |
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| CN113708647A (en) * | 2021-08-30 | 2021-11-26 | 西安铁路职业技术学院 | Frequency conversion-power frequency combined driving system for large and medium-sized equipment |
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Application publication date: 20180828 |