CN104393783A - Dielectric barrier discharge type ozone generator power supply with constant peak voltage and current - Google Patents
Dielectric barrier discharge type ozone generator power supply with constant peak voltage and current Download PDFInfo
- Publication number
- CN104393783A CN104393783A CN201410712550.6A CN201410712550A CN104393783A CN 104393783 A CN104393783 A CN 104393783A CN 201410712550 A CN201410712550 A CN 201410712550A CN 104393783 A CN104393783 A CN 104393783A
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- CN
- China
- Prior art keywords
- power supply
- ozone generator
- power
- dielectric barrier
- barrier discharge
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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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
- Inverter Devices (AREA)
Abstract
The invention discloses a dielectric barrier discharge type ozone generator power supply with constant peak voltage and current. The power supply mainly comprises an inverter circuit, a resonant network, a boosting transformer, a dielectric barrier discharge type ozone generator body, a power control circuit and the like. According to the dielectric barrier discharge type ozone generator power supply, generator current and voltage peak can be kept basically constant within an entire power adjustment range under capacitive PFM (Power Frequency Modulation) control to guarantee that the generator is in a high-efficiency discharge state all the time. Besides, each power device in the circuit can work in a soft switching condition to guarantee high-efficiency operation of the power supply. The entire power supply has the characteristics of simple circuit structure, small loss and simple control.
Description
Technical field
The present invention relates generally to Dielectric Barrier Discharge Type Ozone Generator power supply, particularly a kind of novel power supply guaranteeing dielectric impedance efficient discharge.
Background technology
Dielectric barrier discharge (DBD) type ozone generator is primarily of dielectric and discharge channel composition, wherein discharge channel generation gas discharge there are certain requirements load voltage peak value, and there is corresponding optimum operating voltage in specific dielectric barrier discharge type load, when applied voltage peak value equals optimum operating voltage, discharging efficiency is the highest.
Dielectric Barrier Discharge Type Ozone Generator is a kind of special capacitive load, available RC series equivalent model approximate representation, and RC parameter is applied to ozone generator both end voltage affects.Industrially at present mostly adopt ozone generator load and transformer leakage inductance or external compensating inductance forms voltage-type Series-resonant Inverter or current mode parallel resonance power supply is powered to Ozonizer system.Due to current mode inverter difficulty in starting and to control difficulty large, seldom use in reality.Following two kinds are mainly contained for its power adjustments mode of voltage-type Series-resonant Inverter:
(1) direct current Power Regulation.Direct current Power Regulation carrys out regulation output power by changing inverter DC input voitage size exactly, comprises phase control rectifier and copped wave converts.When adopting direct current Power Regulation, because inverter DC input voitage size changes, be applied to ozone generator both end voltage and electric current must and then change, namely ozone generator two ends crest voltage and peak current change with power adjustments;
(2) inversion Power Regulation.Inversion Power Regulation is exactly do not change inverter input voltage, in reversals, complete power adjustments.The implementation of inversion Power Regulation mainly comprises PFM, PWM, PDM and the Hybrid mode between them.Single PFM, PWM or PDM control generator crest voltage and peak current in power adjustment procedure and influence each other, and are difficult to realize the constant of crest voltage and peak current; Generator voltage peak is constant or current peak is constant to adopt PWM & PFM or PWM & PDM Hybrid mode can be realized by closed-loop adjustment, but generator electric current and voltage peak can not be made constant simultaneously, and control relative complex.
In sum, specific ozone generator load has corresponding optimum operating voltage, and the equivalent model parameter of generator affects larger by generator both end voltage peak value, existing control strategy all can not make ozone generator voltage and current peak substantially constant in whole power regulating range, and generator can not be made in power adjustment procedure to maintain efficient discharge.
Summary of the invention
In view of the deficiency that prior art exists, the present invention proposes a kind of Dielectric Barrier Discharge Type Ozone Generator power supply of crest voltage current constant.
The present invention is achieved by the following technical programs:
A kind of Dielectric Barrier Discharge Type Ozone Generator power supply of crest voltage current constant, be made up of inverter circuit, resonant network, step-up transformer, Dielectric Barrier Discharge Type Ozone Generator body and power control circuit, it is characterized in that inverter circuit comprises DC power supply V
e, the first derided capacitors C
1, the second derided capacitors C
2, the first diode D
1, the second diode D
2, the first power switch pipe Q
1, the second power switch pipe Q
2; DC power supply V
epositive pole connect the first derided capacitors C respectively
1positive pole and the first diode D
1anode, the first derided capacitors C
1negative pole and the second derided capacitors C
2positive pole be connected, the first diode D
1negative electrode and the first power switch pipe Q
1drain electrode be connected, the first power switch pipe Q
1source electrode connect the second diode D
2anode, the second diode D
2negative electrode and the second power switch pipe Q
2drain electrode be connected, the second power switch pipe Q
2source electrode and the second derided capacitors C
2negative pole be all connected to DC power supply V
enegative pole.
The Dielectric Barrier Discharge Type Ozone Generator power supply of described a kind of crest voltage current constant, it is characterized in that step-up transformer T is high-leakage impedance transformer, resonant network is by resonant capacitance C
dform with transformer leakage inductance, resonant capacitance C
done end connects the first derided capacitors C
1negative pole, the other end is connected with step-up transformer T primary side Same Name of Ends, step-up transformer T primary side different name end is connected with the source electrode of the first power switch pipe Q1, step-up transformer T secondary side Same Name of Ends is connected with ozone generator high-field electrode, and step-up transformer T secondary side different name end is connected with ozone generator earth polar.
The Dielectric Barrier Discharge Type Ozone Generator power supply of described a kind of crest voltage current constant, is characterized in that the power adjustments of power supply is by capacitive variable frequency control.
The Dielectric Barrier Discharge Type Ozone Generator power supply of described a kind of crest voltage current constant, it is characterized in that the closed-loop control of power supply is by carrying out voltage and current sample to ozone generator, the discharge power that low pass filter obtains DBD type ozone generator reality is imported into after sampled data being done multiplying, with given discharge power compare form power error after import voltage controlled oscillator into through the process of PI controller again, finally by the output signal of voltage controlled oscillator through drive circuit amplify after control the action of converter bridge switching parts pipe.
Compared with prior art the invention has the advantages that:
(1) under capacitive variable frequency control, generator electric current and voltage peak substantially constant in whole power bracket, ozone generator can maintain efficient discharge;
(2) all switching devices all can realize Sofe Switch, and circuit loss is little, and efficiency is high;
(3) power supply architecture is simple, controls to be easy to realize;
Accompanying drawing explanation
Fig. 1 power supply architecture figure.
Fig. 2 Dielectric Barrier Discharge Type Ozone Generator circuit equivalent model.
Fig. 3 adopts the main circuit diagram under circuit of ozonator equivalent model.
Fig. 4 closed-loop control block diagram.
Fig. 5 is ozone generator voltage and Current experiments waveform under 6KHz.
Fig. 6 is ozone generator voltage and Current experiments waveform under 8KHz.
Embodiment
The object of the present invention is to provide a kind of Dielectric Barrier Discharge Type Ozone Generator power supply, there is power adjustable, can to work under soft switching conditions and ozone generator can maintain the features such as efficient discharge in whole power regulating range.
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Fig. 1 is the structure chart of power supply of the present invention, comprises inverter circuit, resonant capacitance, high-leakage impedance transformer and Dielectric Barrier Discharge Type Ozone Generator body.
Fig. 2 is Dielectric Barrier Discharge Type Ozone Generator circuit equivalent model, wherein R
pfor generator equivalent resistance C
pfor the equivalent capacity of generator.
Fig. 3 is the main circuit diagram under employing circuit of ozonator equivalent model, comprises DC power supply V
e, derided capacitors C
1and C
2, blocking diode D
1and D
2, power switch pipe Q
1and Q
2, resonant capacitance C
d, high-leakage impedance transformer (uses inductance L in figure
sconnect with ideal transformer T and represent) and Dielectric Barrier Discharge Type Ozone Generator, wherein power supply V
epositive pole connect C respectively
1positive pole and D
1anode, C
1negative pole and C
2positive pole be connected, D
1negative electrode and Q
1drain electrode be connected, Q
1source electrode connect D
2anode, D
2negative electrode and Q
2drain electrode be connected, Q
2source electrode and C
2negative pole be all connected to power supply V
enegative pole, resonant capacitance C
done end connects C
1negative pole, the other end is connected with transformer T primary side Same Name of Ends, and transformer T primary side different name end is connected with the source electrode of Q1, and transformer T secondary side Same Name of Ends and different name end are connected to high-field electrode and the earth polar of ozone generator respectively.
Wherein, Q
1, Q
2drive singal complementary, the discharge power of ozone generator regulates under capacitive PFM control mode.
The present invention realizes particular by following steps:
Step 1, by adopting Li Sharu graphic-arts technique and studying DBD type generator electric current operationally and the phase relation of voltage, can obtain the series equivalent model parameter of ozone generator as shown in Figure 2, i.e. Fig. 2 equivalent resistance R
pwith equivalent capacity C
pvalue.
Step 2, the input of inverter is obtained after rectifying and wave-filtering by civil power, the generator equivalent capacity C obtained by the operating frequency range set and step 1
pvalue, according to each operation mode determination resonant capacitance C of ozone generator optimum operating voltage amplitude and circuit
dvalue and design high leakage reactance step-up transformer T.
Step 3, requires to determine derided capacitors C according to maximum power
1and C
2capacity, the voltage of each power device and current stress in analysis circuit, select the power device of appropriate size.
Step 4, according to the centre frequency of circuit stability design VCO.
Step 5, closed-loop control, electric current and the voltage signal of ozone generator is gathered with Hall element, sampled data is imported after power measurement module into the discharge power that low pass filter obtains DBD type ozone generator reality, with given discharge power compare form power error after import voltage controlled oscillator into through the process of PI controller again, finally by the output signal of voltage controlled oscillator through drive circuit amplify after control the action of converter bridge switching parts pipe.
Fig. 5 and Fig. 6 provides power supply of the present invention generator both end voltage and Current experiments waveform when 6KHz and 8KHz operating frequency under one group of canonical parameter respectively, contrast known under PFM control mode, in whole power regulating range, generator both end voltage and current peak substantially constant, ensure that the efficient discharge of ozone generator.
Claims (4)
1. the Dielectric Barrier Discharge Type Ozone Generator power supply of a crest voltage current constant, be made up of inverter circuit, resonant network, step-up transformer, Dielectric Barrier Discharge Type Ozone Generator body and power control circuit, it is characterized in that inverter circuit comprises DC power supply V
e, the first derided capacitors C
1, the second derided capacitors C
2, the first diode D
1, the second diode D
2, the first power switch pipe Q
1, the second power switch pipe Q
2; DC power supply V
epositive pole connect the first derided capacitors C respectively
1positive pole and the first diode D
1anode, the first derided capacitors C
1negative pole and the second derided capacitors C
2positive pole be connected, the first diode D
1negative electrode and the first power switch pipe Q
1drain electrode be connected, the first power switch pipe Q
1source electrode connect the second diode D
2anode, the second diode D
2negative electrode and the second power switch pipe Q
2drain electrode be connected, the second power switch pipe Q
2source electrode and the second derided capacitors C
2negative pole be all connected to DC power supply V
enegative pole.
2. the Dielectric Barrier Discharge Type Ozone Generator power supply of a kind of crest voltage current constant according to claim 1, it is characterized in that step-up transformer T is high-leakage impedance transformer, resonant network is by resonant capacitance C
dform with transformer leakage inductance, resonant capacitance C
done end connects the first derided capacitors C
1negative pole, the other end is connected with step-up transformer T primary side Same Name of Ends, step-up transformer T primary side different name end and the first power switch pipe Q
1source electrode be connected, step-up transformer T secondary side Same Name of Ends is connected with ozone generator high-field electrode, and step-up transformer T secondary side different name end is connected with ozone generator earth polar.
3. the Dielectric Barrier Discharge Type Ozone Generator power supply of a kind of crest voltage current constant according to claim 1, is characterized in that the power adjustments of power supply is by capacitive variable frequency control.
4. the Dielectric Barrier Discharge Type Ozone Generator power supply of a kind of crest voltage current constant according to claim 1, it is characterized in that the closed-loop control of power supply is by carrying out voltage and current sample to ozone generator, the discharge power that low pass filter obtains DBD type ozone generator reality is imported into after sampled data being done multiplying, with given discharge power compare form power error after import voltage controlled oscillator into through the process of PI controller again, finally by the output signal of voltage controlled oscillator through drive circuit amplify after control the action of converter bridge switching parts pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410712550.6A CN104393783A (en) | 2014-11-21 | 2014-11-21 | Dielectric barrier discharge type ozone generator power supply with constant peak voltage and current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410712550.6A CN104393783A (en) | 2014-11-21 | 2014-11-21 | Dielectric barrier discharge type ozone generator power supply with constant peak voltage and current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104393783A true CN104393783A (en) | 2015-03-04 |
Family
ID=52611633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410712550.6A Pending CN104393783A (en) | 2014-11-21 | 2014-11-21 | Dielectric barrier discharge type ozone generator power supply with constant peak voltage and current |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104393783A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787920A (en) * | 2017-01-20 | 2017-05-31 | 东南大学 | There is power supply in a kind of DBD ozone for mixing control |
| CN107425722A (en) * | 2017-05-09 | 2017-12-01 | 中国石油大学(华东) | A kind of LLC resonant converter frequency modulation phase shift current-sharing control method in parallel |
| CN111459070A (en) * | 2020-04-15 | 2020-07-28 | 深圳市英维克健康环境科技有限公司 | Control system, method, device and medium of DBD plasma reactor |
| CN113422536A (en) * | 2021-06-24 | 2021-09-21 | 平顶山学院 | Negative polarity voltage type pulse driving circuit topology, system and equipment |
| CN114337316A (en) * | 2022-01-14 | 2022-04-12 | 张全星 | Self-adaptive multi-phase output high-voltage power supply |
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| CN102723873A (en) * | 2012-06-01 | 2012-10-10 | 燕山大学 | Dual-input full-isolation integrated current transformer |
| CN103840689A (en) * | 2014-04-01 | 2014-06-04 | 许昌学院 | High-voltage switch power source |
| CN104009634A (en) * | 2014-05-05 | 2014-08-27 | 广东工业大学 | Dielectric barrier discharge type ozone generator power supply based on direct-current interlaced boost and alternating-current resonance network |
| CN104038087A (en) * | 2014-05-05 | 2014-09-10 | 广东工业大学 | Dielectric barrier discharge-type ozone generator power supply without intermediate-frequency or high-frequency step-up transformer |
-
2014
- 2014-11-21 CN CN201410712550.6A patent/CN104393783A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723873A (en) * | 2012-06-01 | 2012-10-10 | 燕山大学 | Dual-input full-isolation integrated current transformer |
| CN103840689A (en) * | 2014-04-01 | 2014-06-04 | 许昌学院 | High-voltage switch power source |
| CN104009634A (en) * | 2014-05-05 | 2014-08-27 | 广东工业大学 | Dielectric barrier discharge type ozone generator power supply based on direct-current interlaced boost and alternating-current resonance network |
| CN104038087A (en) * | 2014-05-05 | 2014-09-10 | 广东工业大学 | Dielectric barrier discharge-type ozone generator power supply without intermediate-frequency or high-frequency step-up transformer |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787920A (en) * | 2017-01-20 | 2017-05-31 | 东南大学 | There is power supply in a kind of DBD ozone for mixing control |
| CN107425722A (en) * | 2017-05-09 | 2017-12-01 | 中国石油大学(华东) | A kind of LLC resonant converter frequency modulation phase shift current-sharing control method in parallel |
| CN111459070A (en) * | 2020-04-15 | 2020-07-28 | 深圳市英维克健康环境科技有限公司 | Control system, method, device and medium of DBD plasma reactor |
| CN111459070B (en) * | 2020-04-15 | 2021-07-20 | 深圳市英维克健康环境科技有限公司 | Control system, method, device and medium of DBD plasma reactor |
| CN113422536A (en) * | 2021-06-24 | 2021-09-21 | 平顶山学院 | Negative polarity voltage type pulse driving circuit topology, system and equipment |
| CN113422536B (en) * | 2021-06-24 | 2024-04-19 | 平顶山学院 | Negative polarity voltage type pulse driving circuit topology, system and equipment |
| CN114337316A (en) * | 2022-01-14 | 2022-04-12 | 张全星 | Self-adaptive multi-phase output high-voltage power supply |
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Application publication date: 20150304 |
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