CN106492990A - A kind of high-frequency high-voltage dust removing power supply - Google Patents
A kind of high-frequency high-voltage dust removing power supply Download PDFInfo
- Publication number
- CN106492990A CN106492990A CN201610895155.5A CN201610895155A CN106492990A CN 106492990 A CN106492990 A CN 106492990A CN 201610895155 A CN201610895155 A CN 201610895155A CN 106492990 A CN106492990 A CN 106492990A
- Authority
- CN
- China
- Prior art keywords
- frequency
- module
- power supply
- dust removing
- rectification module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/66—Applications of electricity supply techniques
-
- 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
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
- H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
- H02M5/44—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
- H02M5/453—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal
- H02M5/458—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
-
- 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
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/21—Conversion of ac power input into dc 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
- H02M7/217—Conversion of ac power input into dc 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
Abstract
The invention discloses a kind of high-frequency high-voltage dust removing power supply.Including controller, high-frequency inversion module, boosting rectification module, it is characterised in that：Described high-frequency high-voltage dust removing power supply also includes control rectification module, the technology that a kind of pressure regulation proposed by the present invention and frequency modulation combine, absorb the advantage of two technology, when can be prevented effectively from sparking, turn-off speed is slow, resume speed is slow, efficiency is low and pulse narrow width, the big shortcoming of IGBT rush of currents and response time length and the weakness big with rush of current during little output current.
Description
Technical field
The present invention relates to a kind of power technique fields, are related specifically to a kind of high-frequency high-voltage dust removing field of power supplies.
Background technology
With the continuous expansion of human being's production scale, the continuous improvement of industrialization degree, problem of environmental pollution are more and more tighter
Weight, air pollution problems inherent performance therein are especially apparent.People are reduced dust and enter air and return using various dust arresters
Receive utility.Common dust arrester installation mainly has:Mechanical dust collector, scrubber, sack cleaner, electrostatic precipitator
Deng.Electrostatic precipitator is to produce high voltage electric field using high-tension electricity to make air that the operation principle of ionization to occur, and the air of pollution is led to
Crossing high voltage electric field makes dust therein charged, a kind of cleaner that charged dust is collected under electric field force effect.It has
There is the pressure loss little, process exhaust gas volumn greatly, energy consumption is low, has very high arresting efficiency to fine dust, can be higher than 99%, can be in high temperature
Or operate under strong rotten candle property gas, operating cost is low, the advantages of easy to maintenance.These advantages are based on, electrostatic precipitator is in dedusting
Field is widely used.
Electrostatic precipitator reaches its maturity through the development of more than 100 years, its technology, and large-scale promotion was used from 40 years last century
In generation, starts, and mainly experienced power frequency boosting rectifier power source, high-frequency and high-voltage rectifier power source and the pulse power；Wherein power frequency boosting rectification
Power technology is most ripe, but efficiency of dust collection is low, and in long-established enterprise, occupation rate is higher at present；Although pulse power efficiency highest,
Technology, technique is not also overripened, is in experimental period；High-frequency high-voltage source technology was proposed in last century eight, the nineties, effect
Rate is high compared with power frequency supply, is the fresh combatants in dedusting power source.But existing high-frequency high-voltage source technology because voltage-regulating technique and
The deficiency of frequency modulation technology, when there is also sparking, turn-off speed is slow, resume speed is slow, and efficiency is low and pulse width during little output current
Narrow, the big shortcoming of IGBT rush of currents and response time length and the weakness big with rush of current, these are also that industry must be solved
Certainly problem.
Content of the invention
In view of the drawbacks described above or deficiency in voltage-regulating technique and frequency modulation technology, the present invention proposes a kind of pressure regulation and mutually ties with frequency modulation
The technology of conjunction, absorbs the advantage of two technology, and when can be prevented effectively from sparking, turn-off speed is slow, resume speed slow, and efficiency is low
With pulse narrow width during little output current, the big shortcoming of IGBT rush of currents and response time length and big with rush of current weak
Point.
The technical solution adopted for the present invention to solve the technical problems
A kind of high-frequency high-voltage dust removing power supply, including：Including controller 7, high-frequency inversion module 2, boosting rectification module 3, its
It is characterised by：Described high-frequency high-voltage dust removing power supply also includes control rectification module 1.
Have control rectification module 1 using 6 Group of Silicon Controlled Rectifier into bridge rectifier 11 and closed loop SCR control.
H-bridge circuit 21 of the high-frequency inversion module 2 using 4 IGBT compositions.
LC filtration modules 4 are additionally provided between described control rectification module 1, high-frequency inversion module 2；
LC cascade coupled resonator modules 5 are additionally provided between described high-frequency inversion module 2 and boosting rectification module 3；
The three-phase alternating current of input is passed through has control rectification module 1 to carry out control rectification, then again after LC filtration modules 4
For unidirectional current；
The unidirectional current again by high-frequency inversion module 2, through high-frequency inversion after, for the former limit that boosts in rectification module 3, then
Cleaner unit body 6 is entered after the boosting rectification of boosted rectification module 3；
As shown in Figure 1, power input is three-phase alternating current to the circuit topology of high-frequency and high-voltage power supply, carries out first controlled whole
Stream, is direct current after LC filtering, then carries out high-frequency inversion to supply transformer primary side, enter cleaner unit sheet after transformer boost rectification
Body, in order to realize that constant-current source and soft switch technique increase LC series resonances between inverter and transformator.High-frequency and high-voltage power supply
Control method have Regulation Control, frequency modulation control and control that the two combines.There can be some beneficial effect following：,
1. the technology that a kind of pressure regulation of the present invention and frequency modulation combine, absorbs the advantage of two technology, effectively can keep away
When exempting to strike sparks, turn-off speed is slow, resume speed is slow, the low shortcoming of efficiency；
2., by having carried out control rectification first, it is direct current after LC filtering, then carries out high-frequency inversion to supply transformer primary side, pass through
Cleaner unit body is entered after transformer boost rectification, it is achieved that constant-current source and soft switch technique increase between inverter and transformator
Plus LC series resonances.
3. the control method of high-frequency and high-voltage power supply has Regulation Control, frequency modulation control and control that the two combines.Pressure regulation control
The method of system is simple, pulse narrow width when can avoid little output current, the big shortcoming of IGBT rush of currents.
4. this patent is proposed pressure regulation, frequency modulation combine and can effectively overcome response time length and big with rush of current weak
Point.
Description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the topology diagram of circuit of the present invention.
Fig. 2 is without control commutation inversion output waveform figure.
Fig. 3 is that have control commutation inversion output waveform figure.
It is specially in accompanying drawing
1st, there are control rectification module 2, high-frequency inversion module 3, boosting rectification module
4th, LC filtration modules 5, LC cascade coupled resonator modules 6, cleaner unit body
7th, controller 11, bridge rectifier 21, H-bridge circuit
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that specific embodiment described herein is not used to only in order to explain the present invention
Limit the present invention.
Fig. 1 is the topology diagram of the circuit of the present invention, as shown in FIG., has control rectification module 1, high-frequency inversion module 2
Between be provided with LC filtration modules 4 so that the three-phase alternating current of input power, first by have control rectification module 1 carried out control whole
Stream, then be direct current after LC filtering 4, then unidirectional current is again by high-frequency inversion module 2, through high-frequency inversion after, then go here and there through LC
Connection resonance modules 5, then for the former limit in boosting rectification module 3, then enter dedusting after the boosting rectification of boosted rectification module 3
Device body 6.
Can see in conjunction with Fig. 1, have control rectification module 1 have 6 Group of Silicon Controlled Rectifier into bridge rectifier 11, while adopting closed loop
SCR control mode is controlled, and high-frequency inversion module 2 has used the H-bridge circuit 21 of 4 IGBT compositions.
Fig. 2 is without control commutation inversion output waveform figure；
Fig. 3 is that have control commutation inversion output waveform figure.
Understand in conjunction with Fig. 2 and Fig. 3 contrasts, by there is control commutation inversion, which contrasts the output not having through there is control commutation inversion
Waveform, either large, medium and small electric current is that to have a key character be exactly pulse width when can avoid middle or small output current
Narrow, the big shortcoming of IGBT rush of currents, output voltage are steady.
Embodiment one：
By have 6 Group of Silicon Controlled Rectifier into bridge rectifier 11 and closed loop SCR control mode control implement effectively carry out
There is control rectification, it is achieved that rectification is controlled, while again through high-frequency inversion module 2, having used frequency modulation technology, finally enters back into boosting
Rectification module 3 has used voltage-regulating technique, the technology that a kind of such pressure regulation and frequency modulation combine to absorb the excellent of two technology
Gesture, when can be prevented effectively from sparking, turn-off speed is slow, resume speed is slow, the low shortcoming of efficiency；
Embodiment two：
There is control rectification module 1, LC filtration modules 4 are provided between high-frequency inversion module 2 so that the three-phase alternating current of input power
Electricity, has carried out control rectification by there is control rectification module 1 first, then has been direct current after LC filtering 4, and then unidirectional current passes through high frequency again
Inversion module 2, through high-frequency inversion after, then through LC cascade coupled resonator modules 5, then for the former limit in boosting rectification module 3, then pass through
Cleaner unit body 6 is entered after the boosting rectification of boosting rectification module 3.So by having carried out control rectification first, after filtering through LC
For direct current, then carry out high-frequency inversion and supply transformer primary side, cleaner unit body is entered after transformer boost rectification, it is achieved that constant current
Source and soft switch technique increase LC series resonances between inverter and transformator.
Embodiment three：
The circuit topology of high-frequency and high-voltage power supply is shown in Fig. 1, and power input is three-phase alternating current, has carried out control rectification first, 6
Group of Silicon Controlled Rectifier into bridge rectifier 11 and closed loop SCR control mode, be direct current after LC filtering, then carry out high-frequency inversion confession
Transformer primary side, enters cleaner unit body, after transformer boost rectification in order to realize constant-current source and soft switch technique in inversion
Increase LC series resonances between device and transformator.The control method of high-frequency and high-voltage power supply have Regulation Control, frequency modulation control and the two
The control for combining.The method of Regulation Control is simple, but power remove is slower when electric field is struck sparks, to cleaner unit this bulk damage compared with
Greatly；The fast response time of frequency modulation control, but when small current, small voltage is exported, the ON time of IGBT switches is short, and IGBT impacts
Larger, and power supply output ripple is big, and output voltage, electric current are unstable；Pressure regulation, the IGBT drive waveforms of frequency modulation and output waveform
As shown in Figure 3.From the waveforms it can be seen that the output ripple of voltage regulating mode is less, output is more stable, and the power supply of purely frequency modulation is low
When electric current is exported, waveform pulsation is big, and output is unstable, and power utilization rate is low.This power supply is combined using pressure regulation, frequency modulation and is prevented effectively from
Response time length and the shortcoming big with rush of current.
So that by Regulation Control, frequency modulation control and control that the two combines.The method of Regulation Control is simple, can keep away
Exempt from pulse narrow width during little output current, the big shortcoming of IGBT rush of currents.Pressure regulation that this patent is proposed, frequency modulation combines can be with
Effectively overcome response time length and the weakness big with rush of current.
Although being described to illustrative specific embodiment of the invention above, in order to the technology of the art
Personnel are it will be appreciated that the present invention, but the present invention is not limited only to the scope of specific embodiment, the common skill to the art
For art personnel, as long as long as various change is in appended claim restriction and the spirit and scope of the invention for determining, one
The innovation and creation using present inventive concept are cut in the row of protection.
Claims (4)
1. a kind of high-frequency high-voltage dust removing power supply, including controller (7), high-frequency inversion module (2), boosting rectification module (3), which is special
Levy and be：Described high-frequency high-voltage dust removing power supply also includes control rectification module (1).
2. a kind of high-frequency high-voltage dust removing power supply according to claim 1, it is characterised in that：There is control rectification module (1) to adopt 6
Individual Group of Silicon Controlled Rectifier into bridge rectifier (11) and closed loop SCR control.
3. a kind of high-frequency high-voltage dust removing power supply according to claim 1, it is characterised in that：High-frequency inversion module (2) adopts 4
The H-bridge circuit (21) of individual IGBT compositions.
4. a kind of high-frequency high-voltage dust removing power supply according to claim 1, it is characterised in that：In described control rectification module
(1), LC filtration modules (4) are additionally provided between high-frequency inversion module (2)；
LC cascade coupled resonator modules (5) are additionally provided between described high-frequency inversion module (2) and boosting rectification module (3)；
The three-phase alternating current of input is passed through has control rectification module (1) to carry out control rectification, then again after LC filtration modules (4)
For unidirectional current；
The unidirectional current again by high-frequency inversion module (2), through high-frequency inversion after, for the former limit that boosts in rectification module (3), then
Cleaner unit body (6) is entered after the boosting rectification of boosted rectification module (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610895155.5A CN106492990A (en) | 2016-10-14 | 2016-10-14 | A kind of high-frequency high-voltage dust removing power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610895155.5A CN106492990A (en) | 2016-10-14 | 2016-10-14 | A kind of high-frequency high-voltage dust removing power supply |
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| Publication Number | Publication Date |
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| CN106492990A true CN106492990A (en) | 2017-03-15 |
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|---|---|---|---|
| CN201610895155.5A Pending CN106492990A (en) | 2016-10-14 | 2016-10-14 | A kind of high-frequency high-voltage dust removing power supply |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107888089A (en) * | 2017-11-07 | 2018-04-06 | 许继电源有限公司 | A kind of high-voltage DC power supply |
| CN109604061A (en) * | 2018-10-26 | 2019-04-12 | 福建省青山纸业股份有限公司 | A kind of dust removal method of pulsed high frequency electric source |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107888089A (en) * | 2017-11-07 | 2018-04-06 | 许继电源有限公司 | A kind of high-voltage DC power supply |
| CN109604061A (en) * | 2018-10-26 | 2019-04-12 | 福建省青山纸业股份有限公司 | A kind of dust removal method of pulsed high frequency electric source |
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