CN101662232A - Alternating-current series resonance pulse high-voltage power supply - Google Patents
Alternating-current series resonance pulse high-voltage power supply Download PDFInfo
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- CN101662232A CN101662232A CN200910136763A CN200910136763A CN101662232A CN 101662232 A CN101662232 A CN 101662232A CN 200910136763 A CN200910136763 A CN 200910136763A CN 200910136763 A CN200910136763 A CN 200910136763A CN 101662232 A CN101662232 A CN 101662232A
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Abstract
The invention relates to an alternating-current series resonance pulse high-voltage power supply which comprises a power-frequency power supply, a variable-frequency power supply, an L-C resonance network, a silicon stack rectifier, an energy-storage capacitor, an electronic switch, a feedback circuit, a triggering pulse circuit and a control circuit. The 50Hz power-frequency alternating current is changed into square wave voltage with required frequency through the variable-frequency power supply and is boosted, a resonance circuit consisting of the variable-frequency power supply and the L-Cresonance network generates alternating current resonance high voltage, the energy-storage capacitor is charged through the silicon stack rectifier, the electronic switch is conducted in the proper phase of the alternating current resonance high voltage under the control of triggering pulse, and pulse high voltage is generated on a loading resistor. The alternating-current series resonance pulsehigh-voltage power supply simplifies the charging power circuit to the utmost extent by using the characteristics of circuit series resonance and the rule of alternating current charging, reduces thevolume of the energy-storage factor as possible and improves the charging efficiency; and the working stability of the powder supply can be enhanced due to the simplification to the circuit, the failure rate is reduced, and the maintenance and operation are convenient.
Description
Technical field
The invention belongs to accelerator, nuclear fusion, light laser technology, relate to a kind of alternating-current series resonance pulse high-voltage power supply particularly.
Background technology
In research fields such as accelerator, nuclear fusion, light laser, Pulse Power Techniques have obtained using widely, and every performance index of pulse high-voltage power supply have also had significant progress.In the development of Pulse Power Techniques, the high voltage pulse power supply is an important techniques link, it is used to charge to the storage capacitor in the pulse modulator, after storage capacitor is charged to required high voltage, under the effect of control signal, to load discharge, produce the high voltage pulse of certain width by discharge switch, the desired pulse duration of different applied field all can be different with repetition rate.
The pattern and the kind of high-voltage power supply that is used for pulse power supply is a lot, domestic most of high-tension high-power modulator, usually adopt traditional low frequency L-C resonant charging mode power, its shortcoming is that volume and weight is bigger, high voltage transformer is arranged, electronic device to be in tens or up to a hundred kilovolts high working voltage under, thereby security reliability reduces, and ripple and stability can not be satisfactory.Along with the development of technology and the renewal of device, the switch change-over technology in the power electronics is well developed, and novel device for power switching and new advanced person's technology path is widely adopted.
Summary of the invention
The present invention seeks to propose a kind of L-C of utilization resonance characteristic, improve charge efficiency, circuit is simplified, reduce failure rate, is convenient to maintenance operation, novel alternating-current series resonance pulse high-voltage power supply.
For reaching described purpose, the invention provides alternating-current series resonance pulse high-voltage power supply, comprise power frequency electricity, variable frequency power supply, L-C resonant network, silicon stack rectifier, storage capacitor, electronic switch, feedback circuit, trigger impulse circuit and control circuit, wherein:
The input of variable frequency power supply is connected with the output of power frequency electricity, and variable frequency power supply generates the alternating voltage of power frequency electricity and the output square-wave voltage;
The input of L-C resonant network is connected with the output of variable frequency power supply, and the L-C resonant network generates the square-wave voltage of variable frequency power supply and output AC resonance high voltage;
The input of silicon stack rectifier is connected with the output of L-C resonant network, and the silicon stack rectifier generates the interchange resonance high voltage of L-C resonant network and output half-wave high voltage;
The storage capacitor input is connected with the output of silicon stack rectifier, and storage capacitor generates the half-wave high voltage of silicon stack rectifier and the output dc high voltage;
The input of electronic switch is connected with the storage capacitor output, and electronic switch is with the dc high voltage production burst high voltage of storage capacitor;
The input of feedback circuit is connected with the output of L-C resonant network, and feedback circuit generates the interchange resonance high voltage of L-C resonant network and output is used for chain and the control sampled signal;
The input of trigger impulse circuit and output are connected with the control input end of electronic switch and the triggering output of control circuit respectively, the synchronous triggering control signal of trigger impulse circuit reception control circuit generates and the output control pulse signal, is used to control the disconnection or the closure of electronic switch;
The input of control circuit is connected with the output of feedback circuit, and control circuit is used for chain and generation of control sampled signal and output synchronous triggering control signal with feedback circuit, and synchronous triggering control signal control of conversion power supply is done control and interlock protection.
Preferably, described variable frequency power supply generates the power frequency electricity of 50Hz the square-wave voltage of required frequency.
Preferably, the synchronous triggering control signal control of conversion power supply of described control circuit output produces required frequency square-wave voltage.
Preferably, described L-C resonant network generates interchange resonance high voltage with the square-wave voltage of the required frequency of variable frequency power supply.
Preferably, described L-C resonant network is become with the resonance capacitance group by resonance reactor.
Preferably, the synchronous triggering control signal of described control circuit output and the control wave of electronic switch are genlock.
Preferably, the interchange resonance high voltage of described L-C resonant network is that 10kV is to 800kV.
Preferably, discharge to storage capacitor by electronic switch, producing pulse high-voltage in load is that 10kv is to 800kv.
Useful technique effect of the present invention or advantage: it mainly is to utilize the characteristic of circuit series resonance and the rule of AC charging that the present invention proposes novel series resonance high-voltage power supply, the charge power supply circuit is simplified to greatest extent, and reduce the volume of the energy storage factor as much as possible, improve charge efficiency.The simplification of circuit can improve the job stability of power supply, reduces failure rate, is convenient to maintenance operation.Characteristics such as this kind power supply shows succinctly in actual applications, practicality will have wide practical use.
Description of drawings
Fig. 1 is the structured flowchart of alternating-current series resonance pulse high-voltage power supply;
Fig. 2 is the schematic diagram of the embodiment of Fig. 1;
Fig. 3 is the phase relation that exchanges resonance high voltage and pulse high-voltage.
Embodiment
Describe each related detailed problem in the technical solution of the present invention in detail below in conjunction with accompanying drawing.Be to be noted that described embodiment only is intended to be convenient to the understanding of the present invention, and it is not played any qualification effect.
See also Fig. 1, the structured flowchart of alternating-current series resonance pulse high-voltage power supply is done comparatively detailed introduction and analysis to operation principle, structure and the course of work of this kind power supply below; The a whole set of power supply of Fig. 1 contains power frequency electricity 1, variable frequency power supply 2, L-C resonant network 3, silicon stack rectifier 4, storage capacitor 5, electronic switch 6, feedback circuit 7, trigger impulse circuit 8, control circuit 9.
The input of variable frequency power supply 2 is connected with the output of power frequency electricity 1, is used for the required frequency about the 50Hz alternating voltage generation 3000v of power frequency electricity 1 be can be the square-wave voltage of 25Hz, 100Hz, 400Hz, 1000Hz or higher frequency; The input of L-C resonant network 3 is connected with the output of variable frequency power supply 2, makes the Q value of L-C resonant network 3 enough big, just the square-wave voltage of variable frequency power supply 2 can be generated and exchange the resonance high voltage, and exchanging the high-tension magnitude of voltage of resonance can decide according to need of work; The input of silicon stack rectifier 4 is connected with the output of L-C resonant network 3, is used for the interchange resonance high voltage of L-C resonant network 3 is generated the half-wave high voltage; Storage capacitor 5 inputs are connected with the output of silicon stack rectifier 4, are used for the half-wave high voltage of silicon stack rectifier 4 is generated dc high voltage; The input of electronic switch 6 is connected with storage capacitor 5 outputs, with the dc high voltage production burst high voltage of storage capacitor 5; The input of feedback circuit 7 is connected with the output of L-C resonant network 3, is used for being used for chain the interchange resonance high voltage generation of L-C resonant network 3 and the control sampled signal; The input of trigger impulse circuit 8 is connected with the output of control circuit 9, be used for the synchronous control signal of control circuit 9 is removed to control trigger impulse circuit 8, trigger impulse circuit 8 outputs are connected with another input of electronic switch 6, and trigger impulse circuit 8 generates disconnection or the closure that control wave is used to control electronic switch 6; The input of control circuit 9 is connected with the output of feedback circuit 7, be used for feedback circuit 7 be used for chain and the control sampled signal generates the synchronous triggering control signal; The output of control circuit 9 is connected with the input of variable frequency power supply 2, and the synchronous triggering control signal that control circuit 9 generates is used for control of conversion power supply 2 and does control and interlock protection.Described variable frequency power supply 2 produces square-wave voltage by the synchronous triggering control signal control of control circuit 9 outputs.The synchronous triggering control signal of described control circuit output and the control wave of electronic switch are genlock.The interchange resonance high voltage of described L-C resonant network be 10kV, 30Kv, 50Kv, 100Kv, 150Kv ... 800kV or higher interchange resonance high voltage.Discharge to storage capacitor by electronic switch, in load, produce pulse high-voltage 10kV, 30kv, 50Kv, 100Kv, 150Kv ... 800kV or the higher pulse high-voltage that shakes.Only be for example above to interchange resonance high voltage, pulse high-voltage, but not limitation of the invention, the present invention exchanges the resonance high voltage, pulse high-voltage can be according to the needs of operating frequency, adopt resonance reactor, the resonant capacitor of high Q value to carry out series resonance, and discharge specific implementation by the high-pressure electronic switch.
See also Fig. 1 and Fig. 2, Fig. 2 illustrates the schematic diagram of alternating-current series resonance pulse high-voltage power supply, and variable frequency power supply 2 is made up of full bridge inverse conversion power F and excitation transformer B; L-C resonant network 3 is made up of resonance reactor L and resonance capacitor C 1; Silicon stack rectifier 4 is made up of rectification silicon stack D and silicon stack current-limiting resistance R1; Storage capacitor 5 adopts high voltage storage capacitor C4; Electronic switch 6 is electronic switch K (Fig. 2 illustrates); Feedback circuit 7, trigger impulse circuit 8 and control circuit 9 are included in the control circuit, control circuit also contain dc partial voltage resistance R 2 and R3 with load resistance R4, exchange dividing potential drop capacitor C 2 and C3.
Excitation transformer B among Fig. 2 provides driving voltage, the resonance frequency f of resonant tank for the series resonant tank of resonance reactor L and resonant capacitance C1 composition
0Following expression:
L is a resonant inductance in the formula, C
1Be resonant capacitance.
The interchange resonance high voltage that L-C resonant network 3 produces charges to required dc high voltage through silicon stack rectifier 4 for storage capacitor 5.
It is f that alternating-current series resonance high-voltage power supply equipment of the present invention provides required frequency by variable frequency power supply 2
0Alternating voltage; Variable frequency power supply 2 adopts the frequency conversion mode of AC-DC-AC, after soon the voltage of three-phase main-frequency electricity 1 becomes direct voltage, direct current is become the ac square-wave voltage of frequency adjustable through full bridge inverse conversion power F again.Because inverter is to use simple control technology power device IGBT (Insulated Gate Bipolar Transistor igbt) is driven and protects under input transformerless; thereby variable frequency power supply 2 delivery efficiencies are very high, can reach more than 98%.
The amplitude of the square-wave voltage of the variable frequency of full bridge inverse conversion power F is constant, and width-adjustable, thereby the size of may command square-wave voltage fundametal compoment; The square-wave voltage feed-in excitation transformer B's of full bridge inverse conversion power F output is elementary, the secondary series resonance networking that constitutes by resonance reactor L and resonant capacitance C1 that offers of excitation transformer B, and provide required driving voltage for L-C resonant network 3.
Utilize the characteristic of series resonance, the amplitude of the fundametal compoment of the excitation square-wave voltage of full bridge inverse conversion power F is risen to required high voltage numerical value automatically by resonant tank, energy is stored among the loop, adopts diode to storage capacitor 5 chargings by silicon stack rectifier 4 then.Storage capacitor 5 can obtain required working pulse high voltage by the charge and discharge process that electronic switch 6 carries out repetition.If resonance frequency f
0(N is 1,2,3 when repeating the integral multiple N of operating frequency f for pulse ...), working pulse will be locked in and exchange high-tension certain appropriate phase of resonance, exchange visible Fig. 3 of phase relation of resonance high voltage and pulse high-voltage.
Three-phase alternating current power frequency among Fig. 1, through variable frequency power supply F among Fig. 2, the power frequency of 50Hz is become required high-frequency square-wave voltage, when for example described square-wave voltage frequency is 400Hz, boost through excitation transformer B, with resonance reactor L, the natural frequency of the resonant network that resonant capacitance C1 forms produces resonance, natural frequency is 400Hz, on resonant capacitance C1, produce and exchange the resonance high voltage, rectification silicon stack D and resistance R 1 are connected in series, the end of rectification silicon stack D is connected with an end that exchanges dividing potential drop capacitor C 3, the end of silicon stack current-limiting resistance R1 is connected with the end of high voltage storage capacitor C4, exchange the resonance high voltage and give high voltage storage capacitor C4 charging through rectification silicon stack D, exchanging dividing potential drop capacitor C 2 and C3 series connection back is connected in parallel with resonant capacitance C1, be used for carrying out dividing potential drop to exchanging the resonance high voltage, dc partial voltage resistance R 2 and R3 series connection back are connected in parallel with resonant capacitance C4, electronic switch K exchanging the high-tension suitable phase place conducting of resonance (seeing Fig. 3 for details), produces pulse high-voltage on load resistance R4 under the control of triggering control wave.
The interchange resonance high voltage among Fig. 3 and the phase relation of pulse high-voltage: by the triggering control wave of control circuit control electronic switch k and L-C resonant network 3 exchange the genlock of resonance high voltage, make pulse high-voltage on the load resistance R4 in resonance high-tension top generation.
One embodiment of the present of invention are straight line accelerator klystron high voltage sourcies, adopt the present invention---alternating-current series resonance pulse voltage source, the about 85kv of interchange resonance high-voltage of L-C resonant network, resonance frequency 100HZ, in load, produce the about 70kv of high voltage pulse, provide high pressure to klystron, working stability, overall efficiency reaches 89.3%, and the technical indicator of this device is as follows:
L-C resonance frequency: 100HZ;
The high-voltage pulse amplitude: 0-100KV is adjustable;
High-voltage pulse width: 0-1ms;
High-voltage pulse number of repetition: 1-50 time/second.
The above; only be the embodiment among the present invention; but protection scope of the present invention is not limited thereto; anyly be familiar with the people of this technology in technical scope disclosed in this invention; can understand conversion or the replacement expected; all should be encompassed in of the present invention comprising within the scope, therefore, protection scope of the present invention should be as the criterion with the protection range of claims.
Claims (8)
1, a kind of alternating-current series resonance pulse high-voltage power supply is characterized in that: comprise power frequency electricity, variable frequency power supply, L-C resonant network, silicon stack rectifier, storage capacitor, electronic switch, feedback circuit, trigger impulse circuit and control circuit, wherein:
The input of variable frequency power supply is connected with the output of power frequency electricity, and variable frequency power supply generates the alternating voltage of power frequency electricity and the output square-wave voltage;
The input of L-C resonant network is connected with the output of variable frequency power supply, and the L-C resonant network generates the square-wave voltage of variable frequency power supply and output AC resonance high voltage;
The input of silicon stack rectifier is connected with the output of L-C resonant network, and the silicon stack rectifier generates the interchange resonance high voltage of L-C resonant network and output half-wave high voltage;
The storage capacitor input is connected with the output of silicon stack rectifier, and storage capacitor generates the half-wave high voltage of silicon stack rectifier and the output dc high voltage;
The input of electronic switch is connected with the storage capacitor output, and electronic switch is with the dc high voltage production burst high voltage of storage capacitor;
The input of feedback circuit is connected with the output of L-C resonant network, and feedback circuit generates the interchange resonance high voltage of L-C resonant network and output is used for chain and the control sampled signal;
The input of trigger impulse circuit and output are connected with the control input end of electronic switch and the triggering output of control circuit respectively, the synchronous triggering control signal of trigger impulse circuit reception control circuit generates and the output control pulse signal, is used to control the disconnection or the closure of electronic switch;
The input of control circuit is connected with the output of feedback circuit, and control circuit is used for chain and generation of control sampled signal and output synchronous triggering control signal with feedback circuit, and synchronous triggering control signal control of conversion power supply is done control and interlock protection.
2, alternating-current series resonance pulse high-voltage power supply according to claim 1 is characterized in that: described variable frequency power supply generates the power frequency electricity of 50Hz the square-wave voltage of required frequency.
3, alternating-current series resonance pulse high-voltage power supply according to claim 2 is characterized in that: the synchronous triggering control signal control of conversion power supply of described control circuit output produces required frequency square-wave voltage.
4, alternating-current series resonance pulse high-voltage power supply according to claim 1 is characterized in that: described L-C resonant network generates interchange resonance high voltage with the square-wave voltage of the required frequency of variable frequency power supply.
5, alternating-current series resonance pulse high-voltage power supply according to claim 1 is characterized in that: described L-C resonant network is become with the resonance capacitance group by resonance reactor.
6, alternating-current series resonance pulse high-voltage power supply according to claim 1 is characterized in that: the synchronous triggering control signal of described control circuit output and the control wave of electronic switch are genlock.
7, alternating-current series resonance pulse high-voltage power supply according to claim 1 is characterized in that: the interchange resonance high voltage of described L-C resonant network is that 10kV is to 800kV.
8, alternating-current series resonance pulse high-voltage power supply according to claim 1 is characterized in that: discharge to storage capacitor by electronic switch, producing pulse high-voltage in load is that 10kv is to 800kv.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910136763A CN101662232A (en) | 2009-02-19 | 2009-05-14 | Alternating-current series resonance pulse high-voltage power supply |
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| CN200910077371.9 | 2009-02-19 | ||
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| CN200910136763A CN101662232A (en) | 2009-02-19 | 2009-05-14 | Alternating-current series resonance pulse high-voltage power supply |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435800A (en) * | 2011-11-07 | 2012-05-02 | 四川中物海通特种电源有限责任公司 | High-voltage pulse generator |
| CN102624278A (en) * | 2012-04-21 | 2012-08-01 | 吉林大学 | Pulse driving power supply of high-power semiconductor laser |
| CN103337983A (en) * | 2013-06-18 | 2013-10-02 | 中国科学院电工研究所 | Repetition-frequency high-voltage microsecond pulsed power supply |
| CN106526439A (en) * | 2016-12-19 | 2017-03-22 | 丞俪仪器科技（上海）有限公司 | Adjustable high-voltage pulse type battery pole plate insulating property detecting system |
| CN110739938A (en) * | 2019-10-18 | 2020-01-31 | 中国工程物理研究院应用电子学研究所 | electric pulse trigger circuit structure |
| CN111030652A (en) * | 2019-12-11 | 2020-04-17 | 西安新海脉冲科技有限公司 | Quick front and back edge pulse modulator |
| CN116232055A (en) * | 2023-04-25 | 2023-06-06 | 北京理工大学 | Instantaneous high-voltage discharge device and discharge method adopting capacitor energy storage |
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2009
- 2009-05-14 CN CN200910136763A patent/CN101662232A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435800A (en) * | 2011-11-07 | 2012-05-02 | 四川中物海通特种电源有限责任公司 | High-voltage pulse generator |
| CN102435800B (en) * | 2011-11-07 | 2014-06-11 | 四川中物海通特种电源有限责任公司 | High-voltage pulse generator |
| CN102624278A (en) * | 2012-04-21 | 2012-08-01 | 吉林大学 | Pulse driving power supply of high-power semiconductor laser |
| CN102624278B (en) * | 2012-04-21 | 2013-12-25 | 吉林大学 | Pulse driving power supply of high-power semiconductor laser |
| CN103337983A (en) * | 2013-06-18 | 2013-10-02 | 中国科学院电工研究所 | Repetition-frequency high-voltage microsecond pulsed power supply |
| CN103337983B (en) * | 2013-06-18 | 2015-09-16 | 中国科学院电工研究所 | A kind of repeated frequency high-voltage microsecond pulse power supply |
| CN106526439A (en) * | 2016-12-19 | 2017-03-22 | 丞俪仪器科技（上海）有限公司 | Adjustable high-voltage pulse type battery pole plate insulating property detecting system |
| CN106526439B (en) * | 2016-12-19 | 2023-11-10 | 丞俪仪器科技（上海）有限公司 | Adjustable high-voltage pulse type battery polar plate insulating property detection system |
| CN110739938A (en) * | 2019-10-18 | 2020-01-31 | 中国工程物理研究院应用电子学研究所 | electric pulse trigger circuit structure |
| CN111030652A (en) * | 2019-12-11 | 2020-04-17 | 西安新海脉冲科技有限公司 | Quick front and back edge pulse modulator |
| CN116232055A (en) * | 2023-04-25 | 2023-06-06 | 北京理工大学 | Instantaneous high-voltage discharge device and discharge method adopting capacitor energy storage |
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