CN113992025A - Pulse high-voltage power supply system for lightweight accelerator and control method - Google Patents
Pulse high-voltage power supply system for lightweight accelerator and control method Download PDFInfo
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- CN113992025A CN113992025A CN202111263129.8A CN202111263129A CN113992025A CN 113992025 A CN113992025 A CN 113992025A CN 202111263129 A CN202111263129 A CN 202111263129A CN 113992025 A CN113992025 A CN 113992025A
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- 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
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33569—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements
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- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
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- 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
- H02M11/00—Power conversion systems not covered by the preceding groups
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Particle Accelerators (AREA)
Abstract
The invention discloses a pulse high-voltage power supply system for a lightweight accelerator, which comprises a direct-current high-voltage power supply module, a voltage stabilizing module and a voltage stabilizing module, wherein the direct-current high-voltage power supply module receives commercial power input, rectifies and filters the commercial power input and converts the commercial power input into high-voltage direct-current voltage; the energy storage capacitor module is used for acquiring and storing the high-voltage direct current voltage; the pulse transformer is used for acquiring the high-voltage direct current voltage of the energy storage capacitor module and converting the voltage during discharging; the switching tube circuit module is used for controlling the energy storage capacitor module to transmit high-voltage direct current voltage to the pulse transformer; the control protection module is used for controlling and protecting the direct current high-voltage power supply module and the switching tube circuit module; and a control device connected with the pulse transformer. The pulse high-voltage power supply system adopts the pulse transformer, so that the output voltage of single pulse of the pulse output by the power supply can be adjusted, a high-voltage power supply can be directly provided for an electron gun in the X-band light-weight accelerator system, and the pulse width output by the power supply can be adjusted by matching with the X-band light-weight accelerator.
Description
Technical Field
The invention relates to a pulse high-voltage power supply system for a lightweight accelerator and a control method, which are suitable for the technical field of lightweight accelerators.
Background
X wave band lightweight electron linear accelerator for industry nondestructive test is a high energy ray detection device, for traditional S wave band industry electron linear accelerator, X wave band accelerator has small, light in weight 'S characteristics, can be suitable for complicated operating mode environment, especially the detection ring border is complicated, the operation space is restricted, the deployment is expanded the difficulty, under the environment that mechanical helping hand equipment can't expand, lightweight accelerator can only accomplish the deployment with the help of the manpower, simultaneously through special shielding protection design, and remote operation, realize the protection to personnel and precision components and parts.
The X-wave band light-weight accelerator is mainly suitable for online in-service detection of large petrochemical devices, welding field detection of nuclear containment vessels, field detection of strategic weapons and the like.
The electron gun of the current X-waveband light-weight accelerator system needs 10 kV-24 kV pulse high voltage so as to lead out 0.5A current. The conventional X-waveband light-weight accelerator system is not provided with a single high-voltage power supply of an electron gun and cannot meet the requirements of the X-waveband light-weight accelerator in the new application field.
Disclosure of Invention
The invention aims to provide a pulse high-voltage power supply system for a lightweight accelerator and a control method.
The technical solution for realizing the purpose of the invention is as follows: a pulse high-voltage power supply system for a lightweight accelerator and a control method thereof include:
the direct-current high-voltage power supply module receives commercial power input, rectifies and filters the commercial power input and converts the commercial power input into high-voltage direct-current voltage;
the energy storage capacitor module is used for acquiring and storing the high-voltage direct current voltage;
the pulse transformer is used for acquiring the high-voltage direct current voltage of the energy storage capacitor module and converting the voltage during discharging;
the switching tube circuit module is used for controlling the energy storage capacitor module to transmit high-voltage direct current voltage to the pulse transformer;
the control protection module is used for controlling and protecting the direct current high-voltage power supply module and the switching tube circuit module; and
and the control equipment is connected with the pulse transformer and used for sending signals to the control protection module and receiving signals.
Further, the dc high voltage power supply module includes:
the rectification filtering unit is used for carrying out high-frequency filtering and overvoltage protection on the commercial power and then rectifying and filtering the commercial power into direct-current voltage;
a DC/DC converter for converting the DC voltage inputted to the rectifying filter unit into an AC voltage;
the step-up transformer is used for rectifying the alternating voltage into high-voltage direct current voltage; and
and the isolation inductor is used for isolating a charge-discharge loop when the energy storage capacitor module discharges and controlling the high-voltage direct current voltage to be input into the energy storage capacitor module.
Further, the energy storage capacitor module also comprises a current limiting module used for limiting current when discharging the energy storage capacitor module, and the current limiting module comprises a current limiting inductor L1, a resistor R1, a resistor R2 and a resistor R3 which are sequentially connected in series.
Further, the energy storage capacitor module comprises a capacitor C1, a diode V1, a capacitor V2, a capacitor C2, a diode V3, a diode V4, a capacitor C3, a diode C19, a diode V19, a diode V20, a capacitor C20 and a diode V21 which are connected in parallel in sequence.
Further, the pulse transformer comprises two identical secondary windings, the secondary windings comprising a high voltage end and a low voltage end.
Furthermore, the switch tube circuit module comprises a switch tube and a high-voltage side of a switch tube driving circuit, wherein the number of the switch tubes is equal to the number of capacitors in the energy storage capacitor module.
Further, the control protection module includes:
the charging control unit is used for receiving and processing signals of the control equipment and controlling the on-time of a switch in the DC/DC converter;
the discharge control unit is used for receiving a signal of the control equipment and controlling the conduction time sequence of the switching tube circuit module;
the voltage measuring unit is used for measuring the pulse high voltage output by the power supply in the direct-current high-voltage power supply module and uploading the pulse high voltage to the control equipment;
the fault protection unit is used for judging faults of the direct current high-voltage power supply module and the switching tube circuit module and uploading the faults to the control equipment; and
and the driving circuit low-voltage side unit is used for amplifying the current of the signal output by the discharge control unit and isolating the switching tube circuit module.
A control method of a pulse high-voltage power supply system for a lightweight accelerator includes the steps of:
receiving commercial power input, rectifying and filtering the commercial power input, converting the commercial power input into high-voltage direct current voltage, and storing the high-voltage direct current voltage;
and controlling the stored high-voltage direct voltage to discharge, and converting the voltage when the high-voltage direct voltage is discharged.
Further, the specific method for receiving the commercial power input, rectifying and filtering the commercial power input, converting the commercial power input into the high-voltage direct current voltage, and storing the high-voltage direct current voltage comprises the following steps:
after high-frequency filtering and overvoltage protection are carried out on the mains supply, rectification and filtering are carried out to obtain direct-current voltage;
converting the input direct current voltage into an alternating current voltage signal;
and rectifying the alternating voltage signal into high-voltage direct current voltage and storing the high-voltage direct current voltage.
Compared with the prior art, the invention has the remarkable advantages that: the pulse high-voltage power supply system adopts the pulse transformer, so that the output voltage of single pulse of the pulse output by the power supply can be adjusted, a high-voltage power supply can be directly provided for an electron gun in the X-band light-weight accelerator system, and the pulse width output by the power supply can be adjusted by matching with the X-band light-weight accelerator.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments of the present invention or the prior art are briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a block diagram of the system of the present invention as a whole;
FIG. 2 is a detailed block diagram of the system of the present invention as a whole;
fig. 3 is a circuit diagram of a current limiting module and a storage capacitor module in the system of the present invention.
Detailed Description
In order to more clearly illustrate the present invention, specific examples are given below for further explanation.
Referring to fig. 1-3, a pulse high voltage power supply system for a lightweight accelerator comprises a DC high voltage power supply module, an energy storage capacitor module, a pulse transformer, a switching tube circuit module, a current limiting module, a control protection module and a control device, wherein the DC high voltage power supply module comprises a rectifying and filtering unit, a DC/DC converter, a step-up transformer and an isolation inductor, the rectifying and filtering unit receives 220V commercial power (ac power supply), performs high frequency filtering and overvoltage protection on the commercial power, then rectifies and filters the commercial power into 310V DC voltage, and then transmits the DC voltage to the DC/DC converter, the DC/DC converter is used as a full bridge inverter, converts the input 310V DC voltage into high frequency ac square wave voltage, and transmits the high frequency ac square wave voltage to a primary side of the step-up transformer, the primary side of the step-up transformer receives the high frequency ac square wave voltage of the DC/DC converter, and induces the ac high voltage and rectifies into high voltage, the isolation inductor isolates a charge-discharge loop when the energy storage capacitor module discharges and controls high-voltage direct current voltage to be input into the energy storage capacitor module.
The energy storage capacitor module comprises a capacitor C1, a diode V1, a diode V2, a capacitor C2, a diode V3, a diode V4, a capacitor C3, a diode C19, a diode V19, a diode V20, a capacitor C20 and a diode V21 which are sequentially connected in parallel so as to determine that current can only be transmitted from a front capacitor to a rear capacitor in a one-way mode, the energy storage capacitor module acquires and stores high-voltage direct current voltage, the pulse transformer comprises two identical secondary windings, the secondary windings comprise a high-voltage end and a low-voltage end, the pulse transformer acquires the high-voltage direct current voltage of the energy storage capacitor module and converts the voltage of the energy storage capacitor module when the high-voltage direct current voltage is discharged, the switching tube circuit module comprises a switching tube and a switching tube driving circuit high-voltage side, the switching tube is connected in series in the energy storage capacitor module and is connected for a certain time after receiving a trigger signal of the switching tube driving circuit high-voltage side, so that the energy storage capacitor module controls the energy storage capacitor module to transmit the high-voltage direct current voltage to the pulse transformer when the switching tube driving circuit module is connected, the number of the switching tubes is equal to that of capacitors in the energy storage capacitor module, so that the primary stage of the pulse transformer obtains required voltage, the current limiting module is connected between the energy storage capacitor module and the pulse transformer in series, the current limiting module limits current when the energy storage capacitor module discharges, and the current limiting module comprises but is not limited to a current limiting inductor L1, a resistor R1, a resistor R2 and a resistor R3 which are connected in series in sequence.
The control protection module comprises a charge control unit, a discharge control unit, a voltage measurement unit, a fault protection unit and a drive circuit low-voltage side unit, wherein the charge control unit receives a voltage control signal of control equipment and controls the switch conduction time in the DC/DC converter by comparing the voltage control signal with a feedback signal so as to enable the high voltage output by the DC high-voltage power supply to meet the requirement, the discharge control unit receives a grouping trigger signal of the control equipment and controls the conduction time sequence of each switch tube in the switch tube circuit module so as to enable the energy storage capacitor module to output pulse high voltage meeting the requirement of the X-wave band light-weight accelerator system, the voltage measurement unit measures the pulse high voltage output by the power supply in the DC high-voltage power supply module and transmits the signal to the control equipment, and the fault protection unit judges the faults of the DC high-voltage power supply module and the switch tube circuit module, and the signal is uploaded to a control device, wherein the control device is an external controller and is connected with the pulse transformer, so that the operation of workers is facilitated
A control method of a pulse high-voltage power supply system for a lightweight accelerator includes the steps of:
receiving commercial power, performing high-frequency filtering and overvoltage protection on the commercial power, then rectifying and filtering the commercial power into direct-current voltage, converting the input direct-current voltage into an alternating-current voltage signal, rectifying the alternating-current voltage signal into high-voltage direct-current voltage, and storing the high-voltage direct-current voltage signal; and controlling the stored high-voltage direct voltage to discharge, and converting the voltage when the high-voltage direct voltage is discharged.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. A pulsed high voltage power supply system for a lightweight accelerator, comprising:
the direct-current high-voltage power supply module receives commercial power input, rectifies and filters the commercial power input and converts the commercial power input into high-voltage direct-current voltage;
the energy storage capacitor module is used for acquiring and storing the high-voltage direct current voltage;
the pulse transformer is used for acquiring the high-voltage direct current voltage of the energy storage capacitor module and converting the voltage during discharging;
the switching tube circuit module is used for controlling the energy storage capacitor module to transmit high-voltage direct current voltage to the pulse transformer;
the control protection module is used for controlling and protecting the direct current high-voltage power supply module and the switching tube circuit module; and
and the control equipment is connected with the pulse transformer and used for sending signals to the control protection module and receiving signals.
2. The pulsed high-voltage power supply system for a lightweight accelerator of claim 1, wherein the direct-current high-voltage power supply module comprises:
the rectification filtering unit is used for carrying out high-frequency filtering and overvoltage protection on the commercial power and then rectifying and filtering the commercial power into direct-current voltage;
a DC/DC converter for converting the DC voltage inputted to the rectifying filter unit into an AC voltage;
the step-up transformer is used for rectifying the alternating voltage into high-voltage direct current voltage; and
and the isolation inductor is used for isolating a charge-discharge loop when the energy storage capacitor module discharges and controlling the high-voltage direct current voltage to be input into the energy storage capacitor module.
3. The pulsed high-voltage power supply system for the light-weight accelerator is characterized by further comprising a current limiting module for limiting current when the energy storage capacitor module is discharged, wherein the current limiting module comprises a current limiting inductor L1, a resistor R1, a resistor R2 and a resistor R3 which are sequentially connected in series.
4. The pulse high-voltage power supply system for the light-weight accelerator is characterized in that the energy storage capacitor module comprises a capacitor C1, a diode V1, a diode V2, a capacitor C2, a diode V3, a capacitor V4, a capacitor C3, a capacitor C19, a diode V19, a diode V20, a capacitor C20 and a diode V21 which are connected in parallel in sequence.
5. The pulsed high voltage power supply system for a lightweight accelerator of claim 1, wherein the pulse transformer comprises two identical secondary windings, the secondary windings comprising a high voltage end and a low voltage end.
6. The pulsed high-voltage power supply system for the light-weight accelerator according to claim 1, wherein the switching tube circuit module comprises switching tubes and a high-voltage side of a switching tube driving circuit, wherein the number of the switching tubes is equal to the number of capacitors in the energy storage capacitor module.
7. The pulsed high-voltage power supply system for a lightweight accelerator of claim 2, wherein the control protection module comprises:
the charging control unit is used for receiving and processing signals of the control equipment and controlling the on-time of a switch in the DC/DC converter;
the discharge control unit is used for receiving a signal of the control equipment and controlling the conduction time sequence of the switching tube circuit module;
the voltage measuring unit is used for measuring the pulse high voltage output by the power supply in the direct-current high-voltage power supply module and uploading the pulse high voltage to the control equipment;
the fault protection unit is used for judging faults of the direct current high-voltage power supply module and the switching tube circuit module and uploading the faults to the control equipment; and
and the driving circuit low-voltage side unit is used for amplifying the current of the signal output by the discharge control unit and isolating the switching tube circuit module.
8. A control method of a pulse high-voltage power supply system for a lightweight accelerator is characterized by comprising the following steps:
receiving commercial power input, rectifying and filtering the commercial power input, converting the commercial power input into high-voltage direct current voltage, and storing the high-voltage direct current voltage;
and controlling the stored high-voltage direct voltage to discharge, and converting the voltage when the high-voltage direct voltage is discharged.
9. The method for controlling the pulsed high-voltage power supply system for the lightweight accelerator according to claim 8, wherein the specific method for receiving the commercial power input, rectifying, filtering, converting into the high-voltage direct-current voltage, and storing is as follows:
after high-frequency filtering and overvoltage protection are carried out on the mains supply, rectification and filtering are carried out to obtain direct-current voltage;
converting the input direct current voltage into an alternating current voltage signal;
and rectifying the alternating voltage signal into high-voltage direct current voltage and storing the high-voltage direct current voltage.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111263129.8A CN113992025B (en) | 2021-10-28 | 2021-10-28 | Pulse high-voltage power supply system for lightweight accelerator and control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111263129.8A CN113992025B (en) | 2021-10-28 | 2021-10-28 | Pulse high-voltage power supply system for lightweight accelerator and control method |
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| CN113992025A true CN113992025A (en) | 2022-01-28 |
| CN113992025B CN113992025B (en) | 2022-08-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116261251A (en) * | 2023-03-28 | 2023-06-13 | 北京机械工业自动化研究所有限公司 | Electronic linear accelerator for light X-band nondestructive testing |
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| GB2213613B (en) * | 1987-12-28 | 1992-08-26 | Gen Electric | Microwave energy generating system |
| JP2000232784A (en) * | 1999-02-09 | 2000-08-22 | Fuji Xerox Co Ltd | Power supply device |
| JP2005094827A (en) * | 2003-09-12 | 2005-04-07 | Shunsuke Hosokawa | High voltage pulse power supply |
| JP2005108910A (en) * | 2003-09-29 | 2005-04-21 | Meidensha Corp | Pulse power supply |
| CN107124163A (en) * | 2017-05-04 | 2017-09-01 | 重庆大学 | A kind of composite mode solid state pulse source |
| CN113078832A (en) * | 2021-04-07 | 2021-07-06 | 上海空间电源研究所 | High-voltage pulse modulation power supply for klystron and klystron system |
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2021
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| GB2213613B (en) * | 1987-12-28 | 1992-08-26 | Gen Electric | Microwave energy generating system |
| JP2000232784A (en) * | 1999-02-09 | 2000-08-22 | Fuji Xerox Co Ltd | Power supply device |
| JP2005094827A (en) * | 2003-09-12 | 2005-04-07 | Shunsuke Hosokawa | High voltage pulse power supply |
| JP2005108910A (en) * | 2003-09-29 | 2005-04-21 | Meidensha Corp | Pulse power supply |
| CN107124163A (en) * | 2017-05-04 | 2017-09-01 | 重庆大学 | A kind of composite mode solid state pulse source |
| CN113078832A (en) * | 2021-04-07 | 2021-07-06 | 上海空间电源研究所 | High-voltage pulse modulation power supply for klystron and klystron system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116261251A (en) * | 2023-03-28 | 2023-06-13 | 北京机械工业自动化研究所有限公司 | Electronic linear accelerator for light X-band nondestructive testing |
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