CN105119471B - A kind of circuit and method for eliminating electrolytic copper foil surface high frequency switch power vortex - Google Patents
A kind of circuit and method for eliminating electrolytic copper foil surface high frequency switch power vortex Download PDFInfo
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- CN105119471B CN105119471B CN201510475893.XA CN201510475893A CN105119471B CN 105119471 B CN105119471 B CN 105119471B CN 201510475893 A CN201510475893 A CN 201510475893A CN 105119471 B CN105119471 B CN 105119471B
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- copper foil
- high frequency
- electrolytic copper
- foil surface
- vortex
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Abstract
Parameter of the invention by changing three type error amplifiers inside high frequency switch power, it is 0.22UF to make C2, and initial limit and the first pole frequency drop to previous one times, dc source and electrolytic copper foil is post-processed matching for winding control system more stable；And by dc source output the flat wave networks of external LC to realize the absorption to vortex, the purpose for eliminating vortex is reached by both the above mode, the problem of the conductive roll bearing seat of solution surface treating machine is generated heat in terms of the control of circuit parameter and the absorption two of vortex, it effectively prevent the phenomenon that vortex causes bearing block heating to damage, the stability of equipment is improved, and then stabilizes the quality of copper foil product.
Description
Technical field
Handled the present invention relates to a kind of circuit and method for eliminating vortex, more particularly to a kind of electrolytic copper foil surface that eliminates
The circuit and method of machine high frequency switch power vortex.
Background technology
In recent years, electrolytic copper foil industry rectifier power source progressively substituted thyristor supply, this power supply with high frequency switch power
Biggest advantage is exactly efficiency high, good energy-conserving effect.But there is electromagnetic interference, harmonic pollution, whirlpool in use in HF switch
The problems such as stream.Routinely reduced or eliminated by the way of input adds wave filter generally for electromagnetic interference, for harmonic wave
Pollution takes the mode focused on to be reduced or eliminated.But do not have preferable processing method for vortex phenomenon.
The power supply that electrolytic copper foil is used during surface treatment is high frequency switch power.Electrolytic copper foil aftertreatment technology
The automatic control system of middle reel, there is its intrinsic transmission function, the zero point and limit that there is complexity, with high frequency switch power group
Into the loop of a closure, high frequency modulated electric current will be produced, because conductive rollers are 316L materials, but its bearing block is iron material
Material, so this high frequency modulated electric current can produce vortex in the bearing block of conductive rollers.This vortex is equal with above two ways
It can not eliminate.The generation of vortex rapidly raises the temperature of bearing block, the seat that easily burns out a bearing infringement equipment.
The method of this problem of conventional treatment is at present：On the one hand it is right from outside by increasing the cooling water inflow of conductive rollers
Conductive rollers cool, so as to take away the temperature of bearing block, cooling treatment is carried out to bearing block, but this method can not thoroughly eliminate whirlpool
Flow phenomenon, while so that the volume of processor becomes huge；On the other hand, by changing bearing block in time, it is to avoid because equipment is damaged
It is bad to cause more losses, but which substantially increases the cost of production maintenance.Because both approaches can not be fundamentally
Vortex hidden danger is eliminated, so the quality of copper foil product can not be ensured.
The content of the invention
The present invention devises a kind of new circuit to overcome above mentioned problem, from the control of circuit parameter and vortex
Absorb two aspects and solve the problem of conductive roll bearing seat of surface treating machine is generated heat, effectively prevent vortex and cause bearing block heating damage
Bad phenomenon, improves the stability of equipment, and then stabilizes the quality of copper foil product.
The circuit structure of the present invention includes：DC power supply, it exports the electric current containing high frequency ripple, supplying DC electricity
The flat wave network that the electric current of source output is made up of additional inductance L and electric capacity C, is output to the collection of electrolytic copper foil surface
Electric ring, wherein dc source include three type error amplifiers and PWM switching rectifiers, and electric current amplifies by three type error amplifiers
After be input to PWM switching rectifiers and carry out the smooth regulation of electric current, be then output to collector ring for copper by above-mentioned flat wave network
The post processing of paper tinsel, wherein the high frequency electric ripple quantity included in flat wave network reduction electric current.
Another circuit structure of the present invention, including DC power supply, it exports the electric current containing high frequency ripple, the electric current
By the collector ring of cable connection to electrolytic copper foil surface, dc source includes three type error amplifiers, and three type is missed
Poor amplifier includes electric capacity C1, C2, C3, operational amplifier, resistance R1, R2, R3, electric capacity C3 inputs in parallel with R1 after being connected with R3
To the negative input end of operational amplifier, electric capacity C1 and resistance R2 series connection after the negative input end that jumps to operational amplifier in parallel with C2
And output end, wherein electric capacity C2 is 0.22uF, and the C2 capacitances cause initial limit and the first pole of the three types error amplifier
Dot frequency specific capacitance C2 declines one times for 0.1uF three type error amplifiers, and thus the response speed of PID regulating systems is slack-off,
The overshoot of system is substantially reduced, and DC power supply and matching for the post processing winding control system of big inertia are more stable.
Above two circuit structure can be used in combination.Foregoing circuit makes electricity by reducing high frequency electric amplitude and frequency
The bearing temperature rise for solving copper foil surface processor is controlled within 15 degree Celsius ranges.Frequency of the invention by changing dc source
Respond to improve the resistance to overturning of whole after-treatment system；And increase LC networks at dc source output, make output electricity
Stream is more smooth, high-frequency current component is reduced, so as to eliminate vortex phenomenon.
Simultaneously present invention also offers a kind of method for eliminating vortex, including：By crossing inside change DC power supply
Three type error amplifiers parameter, electric capacity C2 is changed to 0.22uF from 0.1uF, the C2 capacitances cause the three types error amplify
The initial limit of device and the first pole frequency specific capacitance C2 decline one times for 0.1 three type error amplifiers.Make PID regulating systems
Response speed it is slack-off, the overshoot of system is substantially reduced, and makes the post processing winding control system of DC power supply and big inertia
The matching of system is more stable.
By the external flat wave network being made up of additional inductance L and electric capacity C at DC power supply output, make output
Electric current is smoother, reduces high-frequency current component.
Above two mode may be used in combination.This method completely eliminates the vortex phenomenon during electrolytic copper foil surface,
It is effective to improve the problem of vortex causes bearing block heating damage, improve the quality of copper foil product.
Brief description of the drawings
Fig. 1 is electrolytic copper foil surface hf switching power supply figure of the invention；
Fig. 2 is to include the electrolytic copper foil surface hf switching power supply figure of the flat wave networks of LC.
Embodiment
In electrolytic copper foil surface processing, electric current of the DC power supply output containing high frequency ripple passes through cable connection
To the collector ring of equipment for after-treatment.Wherein dc source includes three type error amplifiers and PWM switching rectifiers, and electric current passes through three
PWM switching rectifiers are input to after the amplification of type error amplifier and carry out the smooth regulation of electric current, and being then output to collector ring is used for copper
The post processing of paper tinsel.
The collector ring bearing block heating of copper foil surface processor is found in use, and temperature rise is up to 100 degrees Celsius,
It is the key factor for influenceing post treatment line normally to run, analysis reason is as follows：
The automatic control system of reel in the aftertreatment technology of electrolytic copper foil, has its intrinsic transmission function, there is complexity
Zero point and limit, the control loop of a closure is constituted with dc source, certain situation can cause closed circuit unstable, lead
Cause have high frequency modulated current fluctuation in direct current.High frequency modulated electric current is vortexed and generated heat there is a possibility that being produced in collector ring, thus makes
The bearing block heating of irony.
The transmission function of three type error amplifiers is in dc source：
G (s)=DVo/DVin=- [(1+sR2C1) (1+s (R1+R3) C3)]/[sR1 (C1+C2) (1+sR3C3) ((1+
sR2C1C2)/(C1+C2)))]
The transmission function includes:
a:) an initial limit, frequency is：
Fp0=1/ [2*3.14*R1 (C1+C2)]
b:) first zero point, frequency is：
Fz1=1/ (2*3.14*R2C1)
c:) second zero point, frequency is：
Fz2=1/ (2*3.14*R1C3)
d:) first limit, frequency is：
Fp1=1/ (2*3.14*R2C2)
e:) second limit, frequency is：
Fp2=1/ (2*3.14*R3C3)
Analyzed more than, it is contemplated that eliminate vortex using the following method：
On the one hand, the frequency response of DC power supply is changed to improve the resistance to overturning of whole after-treatment system；This
It is that quickly, PID fast response times are inevitable for its PID response speed because high frequency switch power is in order to adapt to quickly load change
Overshoot is big, if matching not to be especially optimization with the control system of load, is easily caused high frequency ripple current increase.Then
Line is handled due to machinery inertial and electrochemical reaction are more steady, belongs to Great inertia system, it is possible to reduction power supply
The PID governing speeds of power supply improve the overshoot of whole system, and simply power supply reaches that the stable time can be slightly increased.
On the other hand, increase LC networks at DC power supply output, make output current more smooth, reduce high-frequency electrical
Flow component.
Therefore, circuit structure, including DC power supply, it exports the electric current containing high frequency ripple, and the electric current passes through electricity
Cable is connected to the collector ring of electrolytic copper foil surface, and dc source includes three type error amplifiers, three types error amplification
Device include electric capacity C1, C2, C3, operational amplifier, resistance R1, R2, R3, electric capacity C3 is in parallel with R1 after being connected with R3 to be input to computing
The negative input end that jumps to operational amplifier in parallel with C2 and output after the negative input end of amplifier, electric capacity C1 and resistance R2 series connection
End, wherein electric capacity C2 is 0.22uF, and the C2 capacitances cause the initial limit and the first pole frequency of the three types error amplifier
Specific capacitance C2 declines one times for 0.1uF three type error amplifiers, and thus the response speed of PID regulating systems is slack-off, system
Overshoot is substantially reduced, and DC power supply and matching for the post processing winding control system of big inertia are more stable.
Change the parameter of three type error amplifiers of power source internal, C2 is changed to 0.22uF by 0.1uF, initial limit and the
One pole frequency drops to previous one times, hence it is evident that reduce pole frequency, reduces the generation of vortex, thus preferably control
The temperature of current collection collar bearing rises problem.That is, using capacitance to bring significant benign technology for 0.22uF C2
Effect, solves the puzzlement of electrolytic copper foil surface high frequency switch power vortex.
Before three type error amplifiers are changed, current output waveform corresponds to 1000A/4V.From oscillograph it can be seen that electricity
2 times of switching frequencies that waveform frequency is power supply are flowed, peak-to-peak value is about that the 0.2V i.e. peak-to-peak value of high frequency ripple current is 50A.
The C2 of three type error amplifiers is changed to after 0.22uF, current output waveform corresponds to 1000A/7.5V.From oscillography
Device is this it appears that output current wave has become more straight, the very little that high frequency ripple current has become.
After high frequency switch power output end adds the flat wave networks of LC, output current becomes more straight, high frequency ripple electricity
Stream almost disappears.
Following circuit structure, electric current of the DC power supply output with high frequency ripple, by additional can be also used in addition
Inductance L and electric capacity C compositions flat wave network, the high frequency electric ripple quantity included in the electric current for flowing to collector ring just becomes very
Low, therefore, current collection collar bearing is because eddy-current heating caused by the high frequency ripple current of DC power supply is just greatly lowered.Cause
Circuit structure after this is improved includes：DC power supply, it is exported containing the electric current with high frequency ripple, passes through additional inductance
The flat wave network of L and electric capacity C compositions, flows to collector ring.Wherein dc source includes three type error amplifiers and PWM switching and rectifyings
Device, electric current is input to PWM switching rectifiers after the amplification of three type error amplifiers and carries out the smooth regulation of electric current, then by flat
Wave network, which is output to collector ring, is used for the post processing of copper foil, wherein the high frequency electric ripple included in flat wave network reduction electric current
Amount.
By the flat wave networks of external LC at dc source output, make output current smoother.
Above two circuit structure can be used in combination, i.e., circuit structure had both changed the C2 parameters of three type error amplifiers
(being changed to 0.22uF) and the external flat wave networks of LC at dc source output.Foregoing circuit is by reducing high frequency electric amplitude and frequency
Rate, makes the bearing temperature rise of electrolytic copper foil surface control within 15 degree Celsius ranges.The present invention is by changing direct current
The frequency response in source improves the resistance to overturning of whole after-treatment system；And at dc source output increase LC networks,
Make output current more smooth, high-frequency current component is reduced, so as to eliminate vortex phenomenon.
Before and after circuit modification, collector ring bearing temperature is measured respectively, temperature data contrast is as follows before and after transformation：
(30 ° of environment temperature)
| Electric power outputting current | Temperature rise before transformation | Temperature rise after transformation |
| 200A | 8° | 3° |
| 500A | 11° | 4° |
| 800A | 26° | 10° |
| 1000A | 40° | 15° |
As can be seen here, circuit of the invention significantly reduces the temperature of bearing, and the output of dc source is observed with oscillograph
Current waveform, high frequency modulated current amplitude and frequency are greatly lowered, and bearing temperature rise is controlled within 15 degree Celsius ranges.Effectively
Eliminate the heat that electrolytic copper foil surface high frequency switch power vortex is produced.
The present invention is by changing the capacitance of three type error amplifiers and increasing LC between dc source and collector ring
The method of smooth network realizes the phenomenon for eliminating electrolytic copper foil surface high frequency switch power vortex, effectively controls collection
The limit of temperature rise of electric collar bearing.
Above-described embodiment, is only to the specific of the purpose of the present invention, technical scheme and beneficial effect further description
Individual example, the present invention is not limited to this.All any modifications made within the scope of disclosure of the invention, equivalent substitution, change
Enter, be all contained within protection scope of the present invention.
Claims (6)
1. a kind of circuit for eliminating electrolytic copper foil surface high frequency switch power vortex, including DC power supply, its is defeated
Go out the electric current containing high frequency ripple, the electric current is output to the collector ring of electrolytic copper foil surface, it is characterised in that：Direct current
Source include three type error amplifiers, the three types error amplifier include electric capacity C1, C2, C3, operational amplifier, resistance R1, R2,
R3, electric capacity the C3 negative input end that is input to operational amplifier in parallel with R1 after being connected with R3, electric capacity C1 and resistance R2 series connection after with
C2 parallel connections jump to the negative input end and output end of operational amplifier, and wherein electric capacity C2 is 0.22uF, and the C2 capacitances cause this
The initial limit of three type error amplifiers and the first pole frequency specific capacitance C2 decline one for 0.1uF three type error amplifiers
Times, thus the response speed of PID regulating systems is slack-off, and the overshoot of system is substantially reduced, DC power supply and big inertia
The matching for post-processing winding control system is more stable.
2. the circuit of electrolytic copper foil surface high frequency switch power vortex is eliminated as claimed in claim 1, wherein powering
The flat wave network that the electric current of dc source output can be also made up of additional inductance L and electric capacity C, is output to electrolytic copper foil surface
The collector ring of processor, wherein dc source also include PWM switching rectifiers, and electric current is defeated after the amplification of three type error amplifiers
Enter to PWM switching rectifiers and carry out the smooth regulation of electric current, being then output to collector ring by above-mentioned flat wave network is used for copper foil
Post processing, wherein the high frequency electric ripple quantity included in flat wave network reduction electric current.
3. the circuit of electrolytic copper foil surface high frequency switch power vortex is eliminated as claimed in claim 2, wherein being electrolysed
The collector ring bearing temperature rise of copper foil surface processor is controlled within 15 degrees Celsius.
4. a kind of method for eliminating electrolytic copper foil surface high frequency switch power vortex, including by changing supplying DC electricity
The parameter of three type error amplifiers inside source, makes the response speed of PID regulating systems slack-off, the overshoot of system significantly subtracts
It is small, make DC power supply and matching for the post processing winding control system of big inertia more stable,
Wherein three type error amplifiers include electric capacity C1, C2, C3, and operational amplifier, resistance R1, R2, R3, electric capacity C3 connects with R3
It is in parallel with C2 after the negative input end for being input to operational amplifier in parallel with R1 afterwards, electric capacity C1 and resistance R2 series connection to jump to computing and put
The negative input end and output end of big device, wherein the parameter for changing three type error amplifiers includes electric capacity C2 being changed to from 0.1uF
0.22uF, the C2 capacitances cause the initial limit and the first pole frequency specific capacitance C2 of the three types error amplifier to be 0.1
Three type error amplifiers decline one times.
5. the method for electrolytic copper foil surface high frequency switch power vortex is eliminated as claimed in claim 4, by supplying
External flat wave network, makes output current smoother at the output of direct current electric source, reduces high-frequency current component.
6. the method for electrolytic copper foil surface high frequency switch power vortex, flat wave network are eliminated as claimed in claim 5
It is made up of additional inductance L and electric capacity C.
Priority Applications (1)
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| CN201510475893.XA CN105119471B (en) | 2015-08-01 | 2015-08-01 | A kind of circuit and method for eliminating electrolytic copper foil surface high frequency switch power vortex |
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| CN201510475893.XA CN105119471B (en) | 2015-08-01 | 2015-08-01 | A kind of circuit and method for eliminating electrolytic copper foil surface high frequency switch power vortex |
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| CN105119471B true CN105119471B (en) | 2017-07-21 |
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| CN112859587B (en) * | 2021-01-13 | 2022-08-23 | 中国科学院光电技术研究所 | PID target tracking control method based on additional integrated module |
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| US7170264B1 (en) * | 2006-07-10 | 2007-01-30 | Micrel, Inc. | Frequency compensation scheme for a switching regulator using external zero |
| JP2009003612A (en) * | 2007-06-20 | 2009-01-08 | Toshiba Corp | Feedback circuit and series regulator using it |
| CN101694962B (en) * | 2009-10-16 | 2012-01-11 | 电子科技大学 | Loop compensation circuit for switching stabilized-voltage power supply controller |
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Address after: 247000 No. 189 Qingxi Road, Chizhou economic and Technological Development Zone, Anhui Patentee after: Anhui Tongguan copper foil Group Co., Ltd Address before: 247000 No. 189 Qingxi Road, Chizhou economic and Technological Development Zone, Anhui Patentee before: ANHUI TONGGUAN COPPER FOIL Co.,Ltd. |
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