CN205901624U - Take high -voltage pulse power supply circuit of magnetic energy optimization - Google Patents

Take high -voltage pulse power supply circuit of magnetic energy optimization Download PDF

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Publication number
CN205901624U
CN205901624U CN201620726919.3U CN201620726919U CN205901624U CN 205901624 U CN205901624 U CN 205901624U CN 201620726919 U CN201620726919 U CN 201620726919U CN 205901624 U CN205901624 U CN 205901624U
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China
Prior art keywords
pulse
power supply
inductance
voltage
resonant
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Expired - Fee Related
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CN201620726919.3U
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Chinese (zh)
Inventor
牛先智
王慧贞
杨岑
陈强
邓翔
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Nanjing University of Aeronautics and Astronautics
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Nanjing University of Aeronautics and Astronautics
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Abstract

The utility model discloses a take high -voltage pulse power supply circuit of magnetic energy optimization contains firstly to the 2nd coupling inductance, first to second resonant inductance, coupling capacitance, resonant capacitor, damping resistance, GTO two direction switch, thyristor switch and turn over and diode, dust remover, a DC power supply and the 2nd DC power supply, and a DC power supply and the 2nd DC power supply export the load at the coupling capacitance both ends through first to the 2nd coupling inductance coupling. The utility model discloses a pulse high voltage power supply topology through a resonance production pulse high pressure wave form, realizes that the pulse high pressure removes dust, through secondary resonance, the effect produces pulse high pressure wave form by resonance, reduces voltage hangover, DC voltage stack, pulse and shakes the scheduling problem, is applicable to electrostatic precipitator power supply occasion, and DC voltage, pulse amplitude, pulse frequency, pulse repetition rate(PRR) are all controllable, improve power stability, improve the dust collection efficiency greatly.

Description

A kind of high-voltage pulse electric source circuit optimizing with magnetic energy
Technical field
This utility model is related to high-voltage power circuit, especially a kind of high-voltage pulse electric source circuit optimizing with magnetic energy, belongs to In technical field of environment protection equipment.
Background technology
Country's fast-developing achievements environmental pollution also increasingly increases.After entering 21 century, country more payes attention to atmospheric pollution Improvement, accordingly put into effect all kinds of atmospheric emission standards.Conventional electrostatic cleaner can not meet existing discharge standard, quiet The innovation of electric cleaner becomes inevitable.Wherein high voltage power supply is the key of impact electrostatic precipitator working effect.Due to traditional Power frequency supply and high frequency electric source belong to constant current source, and high resistivity and fine particles dust easily cause inverse corona and reentrainment of dust, damage Bad electrostatic precipitator.
Therefore, several pulse powers are proposed both at home and abroad, for example: General Electric's broad pulse of geesi design, but this The class pulse power all exists and is unable to pulse voltage, pulse width, the independent regulation of pulse recurrence frequency single, there is fire simultaneously The flower uncontrolled defect of rate, have impact on the dust removing effects of electrostatic precipitator.The four regularly intermittent pulse punching electricity being proposed by smith company of Denmark Source can be adjusted to impulse waveform, but exist and be unable to Optimal pulse pattern, causes voltage hangover, DC voltage superposition, The problem of pulse oscillating, can have a strong impact on dust removing effects and the operation stability of the pulse power.
Utility model content
Technical problem to be solved in the utility model is for involved defect in background technology, provides a kind of band The high-voltage pulse electric source circuit that magnetic energy optimizes, overcomes the hangover of pulse power voltage, DC voltage superposition, the asking of pulse oscillating Topic is it is achieved that the Effec-tive Function of cleaner unit.
This utility model is to solve above-mentioned technical problem to employ the following technical solutions:
A kind of high-voltage pulse electric source circuit optimizing with magnetic energy, comprises the first to the second coupling inductance, the first to the second humorous Shake inductance, coupled capacitor, resonant capacitance, damping resistance, gto two-way switch, thyristor switch and anti-and diode, cleaner unit, First DC source and the second DC source;
The plus earth of described first DC source, negative pole one end, the first resonant inductance with the first coupling inductance respectively One end be connected;
The other end of described first coupling inductance respectively with one end of coupled capacitor, one end of resonant capacitance, cleaner unit Negative pole incoming end is connected;
One end of the other end respectively with the second coupling inductance of described coupled capacitor, one end of the second resonant inductance are connected;
The other end of described second resonant inductance is connected with the positive pole of the second DC source, and the negative pole of the second DC source connects Ground;
The other end of described second resonant inductance is passed through thyristor switch and anti-and diode and is accessed with the positive pole of cleaner unit End is connected, and the positive pole incoming end ground connection of cleaner unit;
The other end of described first resonant inductance is connected with one end of damping resistance by gto two-way switch;
The other end of described damping resistance is connected with the other end of resonant capacitance.
First DC source and the second DC source pass through the first to the second coupling inductance coupling, and output is carried in coupling electricity Hold two ends.
When all switching devices are all closed, the first coupling inductance is passed through to precipitator energisation by dc side DC source, supplies Piezoelectric voltage is direct current negative high-voltage.
After IGCT and anti-and diode are opened, cleaner unit and the second resonant inductance, thyristor switch and anti-simultaneously diode Constitute resonant network, produce negative pulse high pressure in cleaner unit, resonance completes, and diode zero passage automatically shuts down.
After the completion of resonance, gto two-way switch is open-minded, the first coupling inductance and the first resonant inductance, gto two-way switch, resistance Buffer resistance, resonant capacitance constitute new resonant network, so that the first coupling inductance self-energy transfer is consumed on damping resistance, simultaneously Dc side DC source passes through new resonant network to precipitator energisation, makes the negative pulse HT waveform that first time resonance produces fast Direct current negative polarity high pressure conditions before quick-recovery resonance.
This utility model adopts above technical scheme compared with prior art, has following technical effect that
1. adopt pulsed high voltage generator topology, high voltage pulse waveform is produced by a resonance, realizes high voltage pulse and remove Dirt.
2. pass through secondary resonance, effect produces high voltage pulse waveform by a resonance, reduce voltage hangover, DC voltage Superposition, the problems such as pulse oscillating, realizes the reliability of precipitator power supplies, Effec-tive Function.
Brief description
Fig. 1 is electrical block diagram of the present utility model;
Fig. 2 is the work signal after IGCT and anti-and diode (sw1) are opened in this utility model at the end of resonance Figure;
Fig. 3 is that in this utility model, gto two-way switch (sw2) opens to IGCT and anti-and diode (sw1) is opened again Operating diagram before logical;
Fig. 4 is pulse power source loads voltage x current ideal waveform figure in this utility model;
Fig. 5 is the load voltage waveform figure of traditional pulse power supply;
Fig. 6 is the load voltage waveform figure of the pulse power in this utility model;
Fig. 7 is switching device scr drive signal waveform used by pulse power system in this utility model and gto drive signal Oscillogram.
Specific embodiment
Below in conjunction with the accompanying drawings the technical solution of the utility model is described in further detail:
As shown in figure 1, the utility model discloses a kind of high-voltage pulse electric source circuit optimizing with magnetic energy, comprising the first coupling Close inductance ldc, the second coupling inductance lps, the first resonant inductance lm, the second resonant inductance l, coupled capacitor ccouple, resonant capacitance cm, damping resistance rm, gto two-way switch sw2, thyristor switch and anti-and diode sw1, cleaner unit dcp, the first DC source vdcWith the second DC source vps
Described first DC source vdcPlus earth, negative pole respectively with the first coupling inductance ldcOne end, the first resonance Inductance lmOne end be connected;
Described first coupling inductance ldcThe other end respectively with coupled capacitor ccoupleOne end, resonant capacitance cmOne end, The negative pole incoming end of cleaner unit dcp is connected;
Described coupled capacitor ccoupleThe other end respectively with the second coupling inductance lpsOne end, the one of the second resonant inductance l End is connected;
The other end of described second resonant inductance l and the second DC source vpsPositive pole be connected, the second DC source vps's Minus earth;
The other end of described second resonant inductance l is just passing through thyristor switch and anti-and diode sw1 and cleaner unit dcp Pole incoming end is connected, and the positive pole incoming end ground connection of cleaner unit dcp;
Described first resonant inductance lmThe other end pass through gto two-way switch sw2 and damping resistance rmOne end be connected;
Described damping resistance rmThe other end and resonant capacitance cmThe other end be connected.
First DC source vdcWith the second DC source vpsBy the first coupling inductance ldc, the second coupling inductance lpsCoupling, Output is carried in coupled capacitor ccoupleTwo ends.
When all switching devices are all closed, by dc side DC source vdcBy the first coupling inductance ldcTo cleaner unit dcp Power supply, supply voltage is direct current negative high-voltage.
As shown in Fig. 2 cleaner unit dcp can be equivalent to the electric capacity load in parallel with variable resistance, so working as thyristor switch And after anti-and diode sw1 opens, resonant inductance l and IGCT and anti-and diode sw1, cleaner unit dcp and coupled capacitor ccoupleConstitute a resonant network.Resonance initial voltage is vpsSupply voltage.Resonance positive half period, electric current flows through IGCT, bears Half cycle flows through anti-and diode, and IGCT automatically shuts down, and resonance potential, electric current are all standard sine waveform.In resonant process, Negative pulse high pressure is produced on cleaner unit dcp;After resonance terminates, circuit recovers initial shape body, by dc side DC source vdcGive Cleaner unit dcp powers.
As shown in figure 3, open to IGCT for gto two-way switch sw2 and anti-and diode sw1 open again before work show It is intended to.After one time resonant pulses terminate, gto two-way switch sw2 is open-minded, and during pulsatile once, on cleaner unit dcp, voltage is formed High voltage pulse is so that the first coupling inductance ldcMiddle curent change, in the first coupling inductance ldc, the second coupling inductance lpsMiddle formation Unnecessary magnetic energy, by opening gto two-way switch sw2 so that the first coupling inductance ldc, the first resonant inductance lm, gto two-way switch Sw2, damping resistance rmAnd series resonant capacitance cmForm secondary resonance network, by small size for the transfer of unnecessary magnetic energy in damping resistance rm On, dc side DC source v simultaneouslydcPowered to cleaner unit dcp by secondary resonance network, make voltage fast and stable in IGCT and Circuit original state before instead simultaneously diode sw1 opens.
As shown in figure 4, being pulse power load voltage electric current ideal waveform figure, a resonant network resonance, in cleaner unit Dcp produce voltage current waveform, perfect condition as shown in figure 4, perfect condition have ignored a resonant network circuit damping, Damping in switching device damping, the second resonant inductance l, thinks the first coupling inductance l simultaneouslydc, the second coupling inductance lpsHumorous When shaking, no-voltage curent change.And side circuit can not ignore these key elements.
As shown in figure 5, the load voltage waveform figure for traditional pulse power supply.Traditional pulse power supply produces on cleaner unit dcp Raw voltage waveform, due to the circuit damping of real system and switching tube damping is inevitable and coupling inductance voltage x current etc. will Element, there is concussion and conditions of streaking in traditional pulse mains voltage waveform.Load voltage waveform has 12% about overshoot, bears simultaneously Carry oscillation decay, continue 10 ~ 50 times of pulse periods, oscillation can cause cleaner unit unstable, voltage hangover limits Pulse recurrence frequency is worth most so that pulse dust collector difficult to reach discharge standard under heavy loads, improves system imperative.
Therefore, as shown in fig. 6, for the utility model proposes a kind of with magnetic energy optimize high-voltage pulse electric source circuit load Voltage oscillogram, switching device scr drive signal waveform and gto drive signal waveform figure institute as used by Fig. 7 pulse power system Show, by the reasonable IGCT and anti-and diode sw1, gto two-way switch sw2 opens shutoff so that load voltage waveform of controlling Overshoot controlled in 1%, voltage hangover controlled less than the pulse period.The utility model proposes a kind of with magnetic energy optimize height Pressure pulse power supply circuit is directed to conventional high-tension impulse circuit load voltage waveform and there is concussion and conditions of streaking so that this problem obtains Solve to preferable.
A kind of high-voltage pulse electric source circuit with magnetic energy optimization of this utility model, by way of DC pulse superposition, improves Efficiency of dust collection, improves power utilization rate, realizes energy-saving and emission-reduction, propose new Optimization Design of Electronic Circuits simultaneously, optimize load , so that efficiency of dust collection improves further, range of application is wider for voltage waveform.A kind of this kind of high-voltage pulse power source optimizing with magnetic energy Circuit will have wide market application foreground under new atmospheric emission standard.
It is understood that unless otherwise defined, all terms used herein (include skill to those skilled in the art of the present technique Art term and scientific terminology) have and the general understanding identical of the those of ordinary skill in this utility model art meaning Justice.It should also be understood that those terms defined in such as general dictionary should be understood that have upper with prior art The consistent meaning of meaning hereinafter, and unless defined as here, will not with idealization or excessively formal implication Lai Explain.
Above-described specific embodiment, is entered to the purpose of this utility model, technical scheme and beneficial effect One step describes in detail, be should be understood that and the foregoing is only specific embodiment of the present utility model, is not used to limit This utility model processed, all of the present utility model spirit and principle within, any modification, equivalent substitution and improvement done etc., all Should be included within protection domain of the present utility model.

Claims (1)

1. a kind of high-voltage pulse electric source circuit with magnetic energy optimization is it is characterised in that comprise the first to the second coupling inductance (ldc、 lps), the first to the second resonant inductance (lm, l), coupled capacitor (ccouple), resonant capacitance (cm), damping resistance (rm), gto double To switch (sw2), thyristor switch and anti-and diode (sw1), cleaner unit (dcp), the first DC source (vdc) and second straight Stream power supply (vps);
Described first DC source (vdc) plus earth, negative pole respectively with the first coupling inductance (ldc) one end, the first resonance Inductance (lm) one end be connected;
Described first coupling inductance (ldc) the other end respectively with coupled capacitor (ccouple) one end, resonant capacitance (cm) one End, the negative pole incoming end of cleaner unit (dcp) are connected;
Described coupled capacitor (ccouple) the other end respectively with the second coupling inductance (lps) one end, second resonant inductance (l) One end is connected;
The other end of described second resonant inductance (l) and the second DC source (vps) positive pole be connected, the second DC source (vps) Minus earth;
The other end of described second resonant inductance (l) passes through thyristor switch and anti-and diode (sw1) and cleaner unit (dcp) Positive pole incoming end is connected, and the positive pole incoming end ground connection of cleaner unit (dcp);
Described first resonant inductance (lm) the other end pass through gto two-way switch (sw2) and damping resistance (rm) one end be connected;
Described damping resistance (rm) the other end and resonant capacitance (cm) the other end be connected.
CN201620726919.3U 2016-07-11 2016-07-11 Take high -voltage pulse power supply circuit of magnetic energy optimization Expired - Fee Related CN205901624U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Publications (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106160561A (en) * 2016-07-11 2016-11-23 南京航空航天大学 The high-voltage pulse electric source circuit that a kind of band magnetic energy optimizes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106160561A (en) * 2016-07-11 2016-11-23 南京航空航天大学 The high-voltage pulse electric source circuit that a kind of band magnetic energy optimizes
CN106160561B (en) * 2016-07-11 2018-11-23 南京航空航天大学 A kind of high-voltage pulse electric source circuit with magnetic energy optimization

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Granted publication date: 20170118

Termination date: 20190711