CN202475274U - Power supply for three-phase bridge inverter high-power high-frequency ozone generators - Google Patents
Power supply for three-phase bridge inverter high-power high-frequency ozone generators Download PDFInfo
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- CN202475274U CN202475274U CN2012200209545U CN201220020954U CN202475274U CN 202475274 U CN202475274 U CN 202475274U CN 2012200209545 U CN2012200209545 U CN 2012200209545U CN 201220020954 U CN201220020954 U CN 201220020954U CN 202475274 U CN202475274 U CN 202475274U
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
Abstract
The utility model discloses a power supply for three-phase bridge inverter high-power high-frequency ozone generators. The power supply comprises a three-phase passive PFC (power factor correction) filter, a full-bridge silicon-controlled rectifier bridge, a capacitive busbar, a high frequency inverter, a high frequency transformer, a gas medium discharge tube and a digital control circuit, wherein the three-phase passive PFC filter is connected with a 380V three-phase alternating current, the full-bridge silicon-controlled rectifier bridge is connected with the three-phase passive PFC filter, the capacitive busbar is connected with the full-bridge silicon-controlled rectifier bridge, the high frequency inverter is connected with the capacitive busbar, the high frequency transformer is connected with the high frequency inverter, the gas medium discharge tube is connected with the high frequency transformer, and the digital control circuit is connected with the output end of the three-phase passive PFC filter, the high frequency inverter and the output end of the high frequency transformer respectively. The power supply for three-phase bridge inverter high-power high-frequency ozone generators disclosed by the utility model is simple in structure and small in volume, not only can match with different voltage levels of ozone generators so as to reduce the pollution of harmonic waves of a power grid, but also can output different powers through density control so as to meet the demands of large ozone production.
Description
Technical field
The utility model belongs to power technique fields, is specifically related to a kind of three-phase bridge inversion large power high frequency ozone generator power supply.
Background technology
Existing nowadays, sewage disposal, air cleaning, industry fields such as the food sterilization ozonizer power supply that is widely used.Particularly along with the enhancing of China's rapid development of economy, environmental consciousness and the people raising to the ozone level of understanding, different industries will progressively increase the demand with the large-scale ozone generator power supply.
The conventional ozone generator power supply generally adopts power frequency supply, and the method device is simple though power frequency is directly boosted, cost is lower, bulky, efficient is lower, output also is difficult to improve.At present, the existing medium-high frequency power supply that adopts replaces power frequency supply, but it is low to be difficult to mate simultaneously the ozone generator and the power utilization rate of different electric pressures, and output is difficult to improve.
The utility model content
In order to overcome above-mentioned shortcoming and defect; The utility model provides a kind of three-phase bridge inversion large power high frequency ozone generator power supply; This ozonizer power supply is simple in structure, volume is little, not only can mate the ozone generator of different electric pressures; Reduce the pollution of mains by harmonics, and can be through Auto-regulating System of Density of Heavy Medium output different power, to satisfy the demand of large-scale ozone output.
The utility model is realized through following technical scheme:
A kind of three-phase bridge inversion large power high frequency ozone generator power supply; Comprise the passive PFC filter of three-phase that connects the 380V three-phase alternating current; The full bridge controllable silicon rectifier bridge that is connected with the passive PFC filter of three-phase; The capacitive busbar that is connected with the full bridge controllable silicon rectifier bridge; The high-frequency inverter that is connected with the capacitive busbar, the high frequency transformer that is connected with high-frequency inverter, the gas medium discharge tube that is connected with high frequency transformer and the digital control circuit that is connected with the passive PFC output of three-phase, high-frequency inverter, high-frequency inverter output respectively.
Three half-bridges of described high-frequency inverter IGBT are connected to the gas medium discharge tube; The former limit of described high frequency transformer is respectively that triangular form is connected with the Y type with the secondary winding.
Described three-phase active PFC filter makes electric current and voltage same-phase, has reduced the harmonic wave of electrical network, has improved the utilance of electric energy.The full bridge controllable silicon rectification can be regulated DC bus-bar voltage arbitrarily, to mate the ozone generator of different electric pressures, makes the configuration of whole system more flexible.The capacitive busbar has adopted the technology of stack bus bar, makes common mode inductance and differential mode inductance obtain offsetting, and stray inductance drops to minimum, promptly helps the reliability service of IGBT, also prolongs the life-span of ozone generator glass tube.High-frequency inverter is through to the adjusting of frequency (PFM) and duty ratio (PWM), and the resonance condition that the equivalent capacity of leakage inductance and the ozone generator of high frequency transformer is in is with the efficient of the raising ozone generator of maximum.The neutral point of the secondary Y property winding of high frequency transformer and whole system device be connected into the earth through channel-section steel publicly, guaranteed the fail safe of whole system.
The utility model is simple in structure, volume is little, not only can mate the ozone generator of different electric pressures, reduces the pollution of mains by harmonics, and can be through Auto-regulating System of Density of Heavy Medium output different power, to satisfy the demand of various ozone outputs.
Description of drawings
Fig. 1 is connection side's block diagram of the utility model.
Fig. 2 is the circuit theory diagrams of the utility model.
Embodiment
Below in conjunction with Fig. 1, Fig. 2 the utility model is further specified.
A kind of three-phase bridge inversion large power high frequency ozone generator power supply; Comprise the passive PFC filter 1 of three-phase that connects the 380V three-phase alternating current; The full bridge controllable silicon rectifier bridge 2 that is connected with the passive PFC filter of three-phase; The capacitive busbar 3 that is connected with full bridge controllable silicon rectifier bridge 2; The high-frequency inverter 4 that is connected with the capacitive busbar, the high frequency transformer 5 that is connected with high-frequency inverter 4, the gas medium discharge tube 6 that is connected with high frequency transformer 5 and the digital control circuit 7 that is connected with the passive PFC output of three-phase, high-frequency inverter, high-frequency inverter output respectively.High-frequency inverter 4 adopts the manufacturing of insulation bipolar transistor module.The former limit of high frequency transformer 5 and secondary winding triangular form and Y type respectively connect.
The AC380V three-phase alternating current inserts the passive PFC filter 1 of three-phase, and alternating current is connected respectively to full bridge controllable silicon rectifier bridge 2 through copper bar after overcorrect, regulates the silicon controlled trigger angle to regulate DC bus-bar voltage through accessory power supply.Capacitive busbar 3 is received through copper bar respectively in the other two ends of full bridge controllable silicon rectifier bridge 2, owing to adopted the technology of stack bus bar, it is minimum that stray inductance will be arrived, to reduce the peak voltage of bus.Capacitive line row's 3 and connect lead-out terminal and be connected respectively to high-frequency inverter 4, its neutral point is received the simple of high frequency transformer 5 respectively.The secondary employing wye connection of high frequency transformer 5 connects three groups of electrodes of ozone generator respectively, and secondary neutral point inserts the earth, to guarantee the fail safe of whole system.High-tension current through adopting certain frequency is made the high-voltage corona electric field, makes in the electric field or the oxygen molecule generation electrochemical reaction around the electric field, thereby makes ozone.
The AC380V three-phase alternating current is exported stable DC voltage through the passive PFC filter 1 of three-phase.Produce the square wave of 120 ° of phase phasic differences through digital control circuit 7 then.Through controlling density (PDM), frequency (PFM) and the duty ratio (PWM) that cable can be regulated three-phase output voltage.Each power up in order to reduce the impact of electrical network to electric capacitor, triggers pin through the control controllable silicon and realizes soft opening between electrical network and dc bus side.During soft opening, output is under an embargo.Each IGBT also connects absorption circuit, when reducing to open with switch to the impact of device.Major loop and control loop are isolated through shielding box, to improve the reliability of system.
Although preceding text have given to describe in detail and explanation to the embodiment of the utility model; But what should indicate is; We can carry out various equivalences to above-mentioned execution mode according to conception of the present invention and change and modification; When the function that it produced does not exceed spiritual that specification and accompanying drawing contain yet, all should be within the protection range of the utility model.
Claims (3)
1. three-phase bridge inversion large power high frequency ozone generator power supply; It is characterized in that comprising the passive PFC filter of three-phase that connects the 380V three-phase alternating current; The full bridge controllable silicon rectifier bridge that is connected with the passive PFC filter of three-phase; The capacitive busbar that is connected with the full bridge controllable silicon rectifier bridge; The high-frequency inverter that is connected with the capacitive busbar, the high frequency transformer that is connected with high-frequency inverter, the gas medium discharge tube that is connected with high frequency transformer and the digital control circuit that is connected with the passive PFC output of three-phase, high-frequency inverter, high-frequency inverter output respectively.
2. a kind of three-phase bridge inversion large power high frequency ozone generator power supply according to claim 1 is characterized in that three half-bridges of described high-frequency inverter IGBT are connected to the gas medium discharge tube.
3. a kind of three-phase bridge inversion large power high frequency ozone generator power supply according to claim 1 is characterized in that the former limit of described high frequency transformer is respectively that triangular form is connected with the Y type with the secondary winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200209545U CN202475274U (en) | 2012-01-10 | 2012-01-10 | Power supply for three-phase bridge inverter high-power high-frequency ozone generators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200209545U CN202475274U (en) | 2012-01-10 | 2012-01-10 | Power supply for three-phase bridge inverter high-power high-frequency ozone generators |
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| Publication Number | Publication Date |
|---|---|
| CN202475274U true CN202475274U (en) | 2012-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200209545U Expired - Fee Related CN202475274U (en) | 2012-01-10 | 2012-01-10 | Power supply for three-phase bridge inverter high-power high-frequency ozone generators |
Country Status (1)
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| CN (1) | CN202475274U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2012
- 2012-01-10 CN CN2012200209545U patent/CN202475274U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Room two, building F1, phase, Hefei Innovation Industrial Park, No. 2800, high tech Zone, Hefei, China,, Patentee after: ANHUI CAS-HIAU ELECTRICAL INC. Address before: 230088 circular economy institute, No. 2221 West Changjiang Road, Hefei hi tech Zone, Anhui Patentee before: Hefei Hiao electrical Technology Co., Ltd. |
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| DD01 | Delivery of document by public notice |
Addressee: Yu Kaigui Document name: Notice of termination of patent right |
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| DD01 | Delivery of document by public notice | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20210110 |
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| CF01 | Termination of patent right due to non-payment of annual fee |