CN2556848Y - High-frequency inverter for electric removing dust - Google Patents

High-frequency inverter for electric removing dust Download PDF

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Publication number
CN2556848Y
CN2556848Y CN 02205847 CN02205847U CN2556848Y CN 2556848 Y CN2556848 Y CN 2556848Y CN 02205847 CN02205847 CN 02205847 CN 02205847 U CN02205847 U CN 02205847U CN 2556848 Y CN2556848 Y CN 2556848Y
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CN
China
Prior art keywords
inverter
transformer
controller
voltage
output
Prior art date
Application number
CN 02205847
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Chinese (zh)
Inventor
杨开彬
周宝林
Original Assignee
大连贵友机电有限公司
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Publication date
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Priority to CN 02205847 priority Critical patent/CN2556848Y/en
Application granted granted Critical
Publication of CN2556848Y publication Critical patent/CN2556848Y/en

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Abstract

The utility model relates to an electric dedusting used high-frequency inverter power, and a three-phase rectifying and wave filtering circuit is connected with an inverter between the output end of a three-phase power and a transformer, and the output end of the transformer is connected with a full-wave rectifier, and the output end of the full-wave rectifier is connected with a voltage sampling circuit, a current sampling circuit and a controller; the inverter is a resonance type half-bridge inverter, and the controller is provided with FPGA chips and is connected with the inverter, and the transformer is a pulse transformer with high voltage and big power. The three-phase rectifying and wave filtering circuit and the controller are arranged in a control cabinet of the room, and a high voltage occurrence device is formed by the inverter, the transformer, the full-wave rectifier, the voltage sampling circuit and the current sampling circuit and is arranged outside the room. The inverter power is little in energy consumption and small in volume, which can save the civil construction area greatly; the intermittent power supply mode is good in corona effect, and the operation breakdown voltage can be increased by 20%, and the dust collecting efficiency can be improved greatly.

Description

The electric precipitation high frequency inverter
Technical field
The utility model relates to a kind of special supporting high frequency inverter of electric cleaner that is.
Technical background
Electric cleaner is the leading deduster of industries such as present electric power, metallurgy, cement, and the supporting high-voltage rectifier power source of electric cleaner still is the phased industrial frequency rectifying power supply of controllable silicon at present.As everyone knows, phase-controlled power is progressively replaced by the switch inversion power supply, only is difficult to solve the technical problem of high voltage (80-100KV), big capacity (20-100KW) because of inverter in the electric precipitation field, also keeps the power frequency phase-controlled power at present.
The electric cleaner actual operation parameters that puts into operation in a large number shows, if can improve the working voltage of electric cleaner, and then the dust-collecting efficiency of electric cleaner can obviously improve, and as just running current raising, then dust-collecting efficiency improves very little.When the ratio resistance of dust was higher, the raising of running current caused the generation of anti-corona on the contrary easily, and dust collection rate is descended.Industrial frequency rectifying power supply for traditional is subjected to the restriction of self-characteristic and electric cleaner operating condition, is difficult to make existing electric cleaner further to improve dust-collecting efficiency.
At present and the supporting industrial frequency rectifying power supply of electric cleaner, all adopt the supporting formula of touching of the supporting rectifier transformer of a control cubicle (controller of every cabinet).As: 3 to 5 power supply zones are arranged the electric cleaner, need supporting 3 to 5 power supplys, will arrange 3 to 5 control cubicles during civil Engineering Design, improved project cost.
Technology contents
The purpose of this utility model provides a kind of electric precipitation high frequency inverter, makes existing electric cleaner further improve dust-collecting efficiency, solves the technical problem that reactive loss is big, power consumption is high.
The electric precipitation technical scheme of high frequency inverter: three-phase power output end is connected with transformer, and by controller control, it is characterized in that:
(1), be connected with inverter with the three phase rectifier filter circuit between three-phase power output end and the transformer, the output of transformer connects full-wave rectifier, and the output of full-wave rectifier connects voltage sample circuit, current sampling circuit and controller;
(2), inverter is the resonant mode half-bridge inverter;
(3), controller contains fpga chip, be connected with inverter.
Above-mentioned transformer is once a high-power pulse transformer in parallel, that secondary is connected, magnetic core connects midpoint potential.
Above-mentioned controller comprises fpga chip, has communication port, and is connected with display.
Above-mentioned three phase rectifier filter circuit and controller are contained in the control cubicle, place indoor.
Above-mentioned inverter, transformer, full-wave rectifier, voltage sample circuit, current sampling circuit are formed high-voltage generator, place outdoorly, are connected with electric cleaner.
Basic functional principle: electric precipitation high voltagehigh frequency inverter, three phase worker power is connected with the three phase rectifier filter circuit, and filtered direct voltage is delivered to resonance inverter, boosts negative high voltage output after full-wave rectification then again through the concatenation-type pulse transformer.Its middle controller and inverter and voltage, current sampling circuit are connected implements control.
Three phase worker power is after three phase rectifier filtering, obtain the 500V direct voltage, deliver to many resonance inverters respectively, be reverse into the high frequency DC/AC conversion of 30kHZ-50kHZ, boost to 80KV through concatenation-type high-power pulse transformer again, negative high voltage output after full-wave rectification then, negative high voltage is 80-100KV, is transported to a plurality of power supply zones of electric cleaner respectively.Its middle controller and inverter and voltage, current sampling circuit are (by R 1, R 2, R 3And R IForm) connect and implement control, protection, demonstration and data communication.Beneficial effect
1, the rectification of this inverter is output as the precipitous pulsating waveform in forward position, the 30-50kHZ power supply, and relatively 50HZ power supply, its voltage build-up rate improves a lot.For identical electric cleaner, puncture voltage can improve about 20% during its operation.Simultaneously the corona effects of high-frequency pulse voltage is apparently higher than the corona effects of direct voltage, and the supply power mode of intermittent oscillation in addition is significantly improved the dust-collecting efficiency of electric cleaner again.
2, because adopt resonance inversion, the magnetic circuit balance, the electric power loop internal resistance is higher, makes power supply have the constant-current source characteristic.When deduster punctured, momentary excess current was subjected to effective restriction, avoided causing the loop components from being damaged.
3, because adopt three phase supply, and inversion behind rectifying and wave-filtering, so can not reduce power grid quality because of harmonic wave.
4, power factor improves approximately 10%, has reduced reactive loss.
5, can in a big way, adjust reverse frequency, adjust intermittently duty ratio of power supply, realize multiple supply power mode.
6, guaranteeing identical dust-collecting efficiency prerequisite decline low power consumption.
7, because the high-frequency pulse transformer volume is very little, power device and transformer integrator, realize many controllers of a control cubicle installation, promptly the only supporting control cubicle of deduster gets final product, and saves the civil engineering area greatly.High-voltage generator is installed out of doors, can save indoor arrangement areas.
8, the characteristics of this power supply are high frequency, high pressure and load frequent flashover.So the height of antijamming capability has determined the reliability of equipment.Adopt fpga chip to be designed to the dedicated microcomputer master controller for this reason.This controller is in when operation, reduces as far as possible and detects and the procedure quantity of controlling unit, improves the disposal ability of hardware, overcome controller in the past, because of interference makes the disadvantage of program fleet or deadlock, guarantees at a high speed, the high reliability operation.This master controller has also increased functions such as Chinese display, telecommunication simultaneously.Can implement frequency modulation/Regulation Control, transfer pulsewidth/constant current control and intermittent oscillation power supply control.
Description of drawings
Fig. 1 is a structured flowchart of the present utility model;
Fig. 2 is the structured flowchart of the utility model embodiment.
Embodiment
As shown in Figure 1, this electric precipitation architectural feature of high frequency inverter:
(1), be connected with inverter with the three phase rectifier filter circuit between three-phase power output end and the transformer, the output of transformer connects full-wave rectifier, and the output of full-wave rectifier connects voltage sample circuit, current sampling circuit and controller.
(2), inverter is the resonant mode half-bridge inverter.
(3), controller contains fpga chip, is connected with inverter, the output of transformer is negative high voltage output behind full-wave rectifier.
Transformer is once a high-power pulse transformer in parallel, that secondary is connected, magnetic core connects midpoint potential.
Controller comprises fpga chip, has communication port, and is connected with display.
Embodiment is as shown in Figure 2: three phase rectifier filter circuit 1#, 2#, 3# and controller 1#, 2#, 3# are contained in the control cubicle, place indoor.
Inverter, transformer, full-wave rectifier, voltage sample circuit, current sampling circuit are formed high-voltage generator 1#, 2#, 3#, place outdoorly, are connected with electric cleaner.
The secondary connection full-wave rectifier of high-frequency pulse transformer, the output of full-wave rectifier connects by resistance R 1, R 2, R 3And R iVoltage sample circuit, the current sampling circuit formed.

Claims (5)

1, a kind of electric precipitation high frequency inverter, its three phase mains output is connected with transformer, and by controller control, it is characterized in that:
(1), be connected with inverter with the three phase rectifier filter circuit respectively between three-phase power output end and the transformer, the output of transformer connects full-wave rectifier, and the output of full-wave rectifier connects voltage sample circuit, current sampling circuit and controller;
(2), inverter is the resonant mode half-bridge inverter;
(3), controller contains fpga chip, be connected with inverter.
2, electric precipitation high frequency inverter according to claim 1 is characterized in that: described transformer is once a high-power pulse transformer in parallel, that secondary is connected, magnetic core connects midpoint potential.
3, electric precipitation high frequency inverter according to claim 1, it is characterized in that: described controller comprises fpga chip, has communication port, and is connected with display.
4, electric precipitation high frequency inverter according to claim 1 is characterized in that: described three phase rectifier filter circuit and controller are contained in the control cubicle, place indoor.
5, electric precipitation high frequency inverter according to claim 1 is characterized in that: described inverter, transformer, full-wave rectifier, voltage sample circuit, current sampling circuit are formed high-voltage generator, place outdoorly, are connected with electric cleaner.
CN 02205847 2002-03-01 2002-03-01 High-frequency inverter for electric removing dust CN2556848Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 02205847 CN2556848Y (en) 2002-03-01 2002-03-01 High-frequency inverter for electric removing dust

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 02205847 CN2556848Y (en) 2002-03-01 2002-03-01 High-frequency inverter for electric removing dust

Publications (1)

Publication Number Publication Date
CN2556848Y true CN2556848Y (en) 2003-06-18

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090101637A1 (en) * 2007-10-22 2009-04-23 Geissler Steven J System and method for controlling multiple processes in a welding-type power source using a refined controller architecture
CN101954313A (en) * 2010-09-08 2011-01-26 上海理工大学 High-frequency high-voltage switching power supply for electric precipitation
CN102139244A (en) * 2011-02-16 2011-08-03 王红星 High frequency power supply for electric dust removal
CN102233301A (en) * 2010-04-20 2011-11-09 上海冶金矿山机械厂 High-frequency pulse power supply for electrostatic dust collector
CN102500468A (en) * 2011-10-18 2012-06-20 艾尼科环保技术(安徽)有限公司 High-voltage and medium-frequency power supply for electrostatic dust collector and power supply method thereof
CN103368420A (en) * 2012-04-10 2013-10-23 中国科学院电子学研究所 Test power source for large-power microwave device
CN103731053A (en) * 2014-01-06 2014-04-16 山东大学 High-power inverter digital control system and method based on SOPC technology
CN105549674A (en) * 2016-01-07 2016-05-04 江苏源能环境工程有限公司 High-power solid state high-voltage pulse power source
CN106817034A (en) * 2015-11-30 2017-06-09 (株)普拉兹马太 The power supply device of electrostatic (electric dust) precipitator
TWI655030B (en) * 2017-12-04 2019-04-01 南韓商普拉茲馬太股份有限公司 Power supply device for electric dust collector

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090101637A1 (en) * 2007-10-22 2009-04-23 Geissler Steven J System and method for controlling multiple processes in a welding-type power source using a refined controller architecture
US9789559B2 (en) * 2007-10-22 2017-10-17 Illinois Tool Works, Inc. System and method for controlling multiple processes in a welding-type power source using a refined controller architecture
CN102233301A (en) * 2010-04-20 2011-11-09 上海冶金矿山机械厂 High-frequency pulse power supply for electrostatic dust collector
CN101954313B (en) * 2010-09-08 2013-01-23 上海理工大学 High-frequency high-voltage switching power supply for electric precipitation
CN101954313A (en) * 2010-09-08 2011-01-26 上海理工大学 High-frequency high-voltage switching power supply for electric precipitation
CN102139244B (en) * 2011-02-16 2013-02-13 王红星 High frequency power supply for electric dust removal
CN102139244A (en) * 2011-02-16 2011-08-03 王红星 High frequency power supply for electric dust removal
CN102500468A (en) * 2011-10-18 2012-06-20 艾尼科环保技术(安徽)有限公司 High-voltage and medium-frequency power supply for electrostatic dust collector and power supply method thereof
CN102500468B (en) * 2011-10-18 2015-09-23 艾尼科环保技术(安徽)有限公司 A kind of electrostatic precipitator high pressure intermediate frequency power supply and method of supplying power to thereof
CN103368420A (en) * 2012-04-10 2013-10-23 中国科学院电子学研究所 Test power source for large-power microwave device
CN103731053B (en) * 2014-01-06 2016-08-17 山东大学 Large power inverter power source numerical control system based on SOPC technology and method
CN103731053A (en) * 2014-01-06 2014-04-16 山东大学 High-power inverter digital control system and method based on SOPC technology
CN106817034A (en) * 2015-11-30 2017-06-09 (株)普拉兹马太 The power supply device of electrostatic (electric dust) precipitator
CN105549674A (en) * 2016-01-07 2016-05-04 江苏源能环境工程有限公司 High-power solid state high-voltage pulse power source
TWI655030B (en) * 2017-12-04 2019-04-01 南韓商普拉茲馬太股份有限公司 Power supply device for electric dust collector

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