CN104270030B - A kind of pulse power that can be exported with short circuit - Google Patents

A kind of pulse power that can be exported with short circuit Download PDF

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Publication number
CN104270030B
CN104270030B CN201410532035.XA CN201410532035A CN104270030B CN 104270030 B CN104270030 B CN 104270030B CN 201410532035 A CN201410532035 A CN 201410532035A CN 104270030 B CN104270030 B CN 104270030B
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level
pressure regulation
output
current
controller
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CN201410532035.XA
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CN104270030A (en
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孙卓
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Abstract

The invention discloses a kind of pulse power that can be exported with short circuit, including first order pressure regulation level, second level shaping output stage, controller, man-machine interface and sensor, sensor includes voltage sensor and current sensor, first order pressure regulation level connection controller, first order pressure regulation level also connects controller by voltage sensor, first order pressure regulation level connects second level shaping output stage by voltage sensor, shaping output stage in the second level connects controller by current-limiting reactor, voltage sensor and current sensor respectively, and controller is also connected with man-machine interface.The present invention still trouble free service in output short-circuit, and ensure that electric pulse field parameter meets technological requirement, production disruption is not resulted in, and energy saving, efficiency high, will not both damage power supply, will not also damage load equipment, for exporting energy-controllable system in normal range (NR), will not also cause the accidents such as fire, blast.

Description

A kind of pulse power that can be exported with short circuit
Technical field
The present invention relates to power electronics, dc source, inverter field, specifically one kind is applied to water process, electrolysis A kind of pulse power of the application fields such as plating, electric precipitation, electric dehydration, laser.
Background technology
In fields such as water process, electrolysis plating, electric precipitation, electro-desalting, electric dehydrations, often there are the feelings of power supply output short-circuit Condition.Very big short circuit current can be produced when short-circuit, it is possible to damage power supply, it is also possible to damage electrical equipment, it could even be possible to Cause the major accidents such as fire, blast.
The method for solving short circuit problem in the industry at present is usually to detect power supply after short circuit to stop output rapidly, treats short-circuit shape State is exported again after disappearing, and this can cause the interruption of production process, have impact on production efficiency.
Another method reduces output voltage when being short circuit, power work in low pressure, High-current output state, but at some Application scenario, the electric-field intensity that brownout is produced is also too low, it is impossible to reaches manufacturing technique requirent, causes waste of energy.
The content of the invention
It is an object of the invention to provide a kind of output voltage, electric current, frequency, pulsewidth it is adjustable and can with short circuit it is defeated The pulse power for going out, to solve the problems, such as to be proposed in above-mentioned background technology.
To achieve the above object, the present invention provides following technical scheme:
It is a kind of can with short circuit output the pulse power, including first order pressure regulation level, second level shaping output stage, controller, Man-machine interface and sensor, sensor include voltage sensor and current sensor, first order pressure regulation level connection controller, first Level pressure regulation level also connects controller by voltage sensor, and it is defeated that first order pressure regulation level connects second level shaping by voltage sensor Go out level, shaping output stage in the second level connects controller, control by current-limiting reactor, voltage sensor and current sensor respectively Device is also connected with man-machine interface;Alternating current or DC supply input first order pressure regulation level, by the pressure regulation of first order pressure regulation level, surely Pressure, obtains galvanic current pressure;The stable DC voltage that shaping output stage in the second level is produced using first order pressure regulation level, user Output current, frequency, pulsewidth are adjusted by man-machine interface according to loading condition, the electric field for being adapted to production technology needs is produced.
As further scheme of the invention:The alternating current of input is single-phase or three-phase.
As further scheme of the invention:Electric current rate of climb during current-limiting reactor limitation short circuit;Output current exceedes After setting value, second level shaping output stage controlled output pulsewidth, first order pressure regulation level controlled output voltage is common to keep what is exported Voltagesecond product is constant, output current is maintained setting value constant;After short-circuit condition disappears, the output set before automatic recovery.
As further scheme of the invention:The first order pressure regulation level, the switch element of second level shaping output stage be IGBT, FET or pliotron, first order pressure regulation level use transformer, for pressure regulation, isolation;If need not isolate, first Level pressure regulation level does not use transformer.
As further scheme of the invention:Controller realizes all control functions, and controller uses single-chip microcomputer or numeral Processor, and communicated with host computer, realize remote control or local control.
Compared with prior art, the beneficial effects of the invention are as follows:The pressure regulation of first order pressure regulation level, voltage stabilizing, obtain in the present invention One galvanic current pressure, is not influenceed by output situation, and working stability is easily controlled.Second level shaping output stage utilizes The stable DC voltage that one-level pressure regulation level is produced, output current, frequency, pulsewidth are adjusted according to loading condition, can be produced suitable The electric field that production technology needs.When output is short-circuited, shaping output stage in the second level is controlled according to the size of output current Output pulse width, keeps the voltagesecond product of output constant, then can keep constant with the energy of controlled output, is adjusted according to manufacturing technique requirent Save voltage, electric current, frequency, the pulsewidth of output, can in output short-circuit still trouble free service, and ensure that electric pulse field parameter meets work Skill requirement, does not result in production disruption, and energy saving, and efficiency high will not both damage power supply, will not also damage load and set It is standby, for exporting energy-controllable system in normal range (NR), will not also cause the accidents such as fire, blast.
Brief description of the drawings
Fig. 1 is can be with the pulse power structured flowchart of short circuit output;
Fig. 2 is the circuit diagram of the embodiment of the present invention;
In figure:1- first order pressure regulation level;2- second level shaping output stage;3- switch elements;4- commutation diodes;5- open circuits Device;6- resonant capacitances;7- transformers;8- rectifying and wave-filtering inductance;9- output current limiting inductance;10- current sensors;11- controllers; 12- man-machine interfaces;13- voltage of voltage regulation sensors;14- output voltage sensors;15- industrial frequency rectifying filter capacitors;16- high frequencies are whole Stream filter capacitor;17- fast recovery diodes;18- delay startup modules.
Specific embodiment
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, Obviously, described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based in the present invention Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all Belong to the scope of protection of the invention.
Embodiment 1
Fig. 1 and Fig. 2 is referred to, in the embodiment of the present invention, a kind of pulse power that can be exported with short circuit, input power is three Phase 380V alternating currents, 50Hz;The working frequency of first order pressure regulation level 1 is 20kHz, using the high frequency transformer of non-crystaline amorphous metal;Open Pass element 3 is IGBT, used as first order pressure regulation level, the switch element of second level shaping output stage;Miscellaneous part has input rectifying It is diode 4, controller 11, voltage of voltage regulation sensor 13, output voltage sensor 14, current sensor 10, breaker 5, man-machine Interface 12 etc..Three-phase 380V alternating currents by the input rectifying diode 4 of breaker 5, commutation diode 4 and delay startup module 18, Industrial frequency rectifying filter capacitor 15 is connected, and the two ends of industrial frequency rectifying filter capacitor 15 are also connected with output voltage sensor 14, output Voltage sensor 14 is also connected with controller 11, and the connecting valve element 3 of delay startup module 18, the connection controller 11 of switch element 3 is gone back It is connected with resonant capacitance 6, resonant capacitance 6 is also connected with transformer 7, transformer 7 is also connected with fast recovery diode 17, it is fast to recover Diode 17 is also connected with rectifying and wave-filtering inductance 8, filtering high-frequency rectifier electric capacity 16, the two ends of filtering high-frequency rectifier electric capacity 16 with it is steady Piezoelectricity pressure sensor 13 is connected, the connection controller 11 of voltage of voltage regulation sensor 13, the two ends of filtering high-frequency rectifier electric capacity 16 also with Second level shaping output stage 2 is connected, and second level shaping output stage 2 connects current sensor 10, electric current by output current limiting inductance 9 Sensor 10 connects controller 11, and second level shaping output stage 2 acceptable directly output current, frequency, pulsewidth, controller 11 connect Connect man-machine interface 12.
The course of work of the invention is as follows:
(1) close circuit breaker 5, three phase mains gives work by being changed into direct current after commutation diode 4 by delay startup module 18 Frequency rectifying and wave-filtering electric capacity 15 charges.Delay startup module 18 limits charging current, prevents overcurrent.
(2) after voltage of voltage regulation sensor 14 detects the voltage at the two ends of electric capacity 15 more than 400V, delay startup module 18 is not Current limliting again, the control power supply of controller 11 starts output.
(3) user's operation man-machine interface 12, can set output voltage, output current, output frequency, output waveform, defeated Go out the parameters such as pulse width, output polarity, man-machine interface 12 can also the state such as display alarm information, device temperature.
(4) when terminal shortcircuit is exported, the limitation electric current rate of climb of output current limiting inductance 9, after output current exceedes setting value, The controlled output pulsewidth of second level shaping output stage 2, first order pressure regulation 1 controlled output voltage of level, the common voltagesecond product for keeping exporting It is constant, output current is maintained setting value constant, you can to keep constant with the energy of controlled output, will not both damage power supply, Also load equipment will not be damaged, for exporting energy-controllable system in normal range (NR), will not also causes the accidents such as fire, blast.
(5) after short-circuit condition disappears, power supply recovers the voltage of original setting, electric current output automatically.
The invention has the advantages that:
1st, alternating current input can be single-phase, or three-phase, it is also possible to directly input direct current.
2nd, the pressure regulation of first order pressure regulation level, voltage stabilizing, obtain a galvanic current pressure, are not influenceed by output situation, work Stabilization, is easily controlled.
3rd, the stable DC voltage that shaping output stage in the second level is produced using first order pressure regulation level, is adjusted according to loading condition Output current, frequency, pulsewidth, can produce the electric field of suitable production technology needs.
4th, when output is short-circuited, second level shaping output stage according to the size of output current come controlled output pulsewidth, Keep the voltagesecond product of output constant, then can keep constant with the energy of controlled output, will not both damage power supply, will not also damage negative Load equipment, for exporting energy-controllable system in normal range (NR), will not also cause the accidents such as fire, blast.
5th, all controls realize that function is strong, and is easily modified by controller.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be in other specific forms realized.Therefore, no matter From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power Profit requires to be limited rather than described above, it is intended that all in the implication and scope of the equivalency of claim by falling Change is included in the present invention.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each implementation method is only wrapped Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should Specification an as entirety, the technical scheme in each embodiment can also be formed into those skilled in the art through appropriately combined May be appreciated other embodiment.

Claims (4)

1. it is a kind of can with short circuit output the pulse power, it is characterised in that including the first order pressure regulation level, the second level shaping output Level, controller, man-machine interface and sensor, sensor include first voltage sensor, second voltage sensor and current sense Device, first order pressure regulation level connection controller, first order pressure regulation level also connects controller by first voltage sensor, and the first order is adjusted Arbitrarily downgrade and connect second level shaping output stage by first voltage sensor, shaping output stage in the second level passes through current-limiting reactor respectively Device, second voltage sensor are connected controller with current sensor, and controller is also connected with man-machine interface;Alternating current or direct current Input first order pressure regulation level, by pressure regulation, the voltage stabilizing of first order pressure regulation level, obtains galvanic current pressure;Second level shaping is defeated Go out the stable DC voltage that level is produced using first order pressure regulation level, user adjusts output electricity according to loading condition by man-machine interface Stream, frequency, pulsewidth, produce the electric field for being adapted to production technology needs;
The electric current rate of climb during current-limiting reactor limitation short circuit;After output current exceedes setting value, second level shaping output Level controlled output pulsewidth, first order pressure regulation level controlled output voltage, the common voltagesecond product for keeping output is constant, ties up output current Hold constant in setting value;After short-circuit condition disappears, the output set before automatic recovery.
2. it is according to claim 1 can with short circuit output the pulse power, it is characterised in that the alternating current of input is single-phase Or three-phase.
3. it is according to claim 1 can with short circuit output the pulse power, it is characterised in that the first order pressure regulation level, second The switch element of level shaping output stage is IGBT, FET or pliotron, and first order pressure regulation level uses transformer, is used for Pressure regulation, isolation;If need not isolate, first order pressure regulation level does not use transformer.
4. according to claim 1 can be with the pulse power of short circuit output, it is characterised in that the controller is realized all Control function, controller uses single-chip microcomputer or digital processing unit, and is communicated with host computer, realizes remote control or local control.
CN201410532035.XA 2014-10-11 2014-10-11 A kind of pulse power that can be exported with short circuit Expired - Fee Related CN104270030B (en)

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Publication number Priority date Publication date Assignee Title
CN105154940B (en) * 2015-08-10 2018-03-27 中车戚墅堰机车车辆工艺研究所有限公司 A kind of intelligent electric brush plating power supply
CN107911005A (en) * 2017-11-28 2018-04-13 合肥华耀电子工业有限公司 A kind of Switching Power Supply suitable for pulse load matching small capacitances
CN110601568A (en) * 2019-08-08 2019-12-20 云南昆钢电子信息科技有限公司 High-power cold cathode electron gun direct-current high-voltage power supply and method for providing voltage stabilization

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JP2004176625A (en) * 2002-11-27 2004-06-24 Kokusan Denki Co Ltd Igniter for internal combustion engine
CN101127484A (en) * 2007-05-23 2008-02-20 中国科学院电工研究所 A digital high voltage DC power
CN101311325A (en) * 2008-02-25 2008-11-26 华南理工大学 Two level inverter type MAO power source and output regulation control method thereof
CN103028494A (en) * 2012-12-19 2013-04-10 浙江连成环保科技有限公司 Electrostatic-precipitation pulse power supply control system
CN103219913A (en) * 2013-03-15 2013-07-24 东南大学 High-voltage pulse power supply for plasma sewage treatment system
CN103394412A (en) * 2013-08-06 2013-11-20 金华大维电子科技有限公司 High frequency pulse power supply for electric dedusting
CN203540712U (en) * 2013-08-06 2014-04-16 金华大维电子科技有限公司 High-frequency pulsed power supply for electric dust precipitation
CN103973153A (en) * 2013-02-05 2014-08-06 新疆大学 High-power numerical control pulse frequency modulation power supply of electric arc cutting machine tool
CN204089636U (en) * 2014-10-11 2015-01-07 孙卓 A kind of can short circuit export the pulse power

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004176625A (en) * 2002-11-27 2004-06-24 Kokusan Denki Co Ltd Igniter for internal combustion engine
CN101127484A (en) * 2007-05-23 2008-02-20 中国科学院电工研究所 A digital high voltage DC power
CN101311325A (en) * 2008-02-25 2008-11-26 华南理工大学 Two level inverter type MAO power source and output regulation control method thereof
CN103028494A (en) * 2012-12-19 2013-04-10 浙江连成环保科技有限公司 Electrostatic-precipitation pulse power supply control system
CN103973153A (en) * 2013-02-05 2014-08-06 新疆大学 High-power numerical control pulse frequency modulation power supply of electric arc cutting machine tool
CN103219913A (en) * 2013-03-15 2013-07-24 东南大学 High-voltage pulse power supply for plasma sewage treatment system
CN103394412A (en) * 2013-08-06 2013-11-20 金华大维电子科技有限公司 High frequency pulse power supply for electric dedusting
CN203540712U (en) * 2013-08-06 2014-04-16 金华大维电子科技有限公司 High-frequency pulsed power supply for electric dust precipitation
CN204089636U (en) * 2014-10-11 2015-01-07 孙卓 A kind of can short circuit export the pulse power

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