CN109391160B - Attenuation wave generator special for high-voltage equipment - Google Patents
Attenuation wave generator special for high-voltage equipment Download PDFInfo
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- CN109391160B CN109391160B CN201811445781.XA CN201811445781A CN109391160B CN 109391160 B CN109391160 B CN 109391160B CN 201811445781 A CN201811445781 A CN 201811445781A CN 109391160 B CN109391160 B CN 109391160B
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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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/043—Conversion of ac power input into dc power output without possibility of reversal by static converters using transformers or inductors only
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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
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
- H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
- H02M5/06—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using impedances
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Abstract
The invention discloses an attenuation wave generator special for high-voltage equipment, which belongs to the technical field of attenuation waves and comprises a series inductance group, a parallel capacitor group, an amplifier and a rectifier, wherein the series inductance group is electrically connected with a precision signal source, the output end of the precision signal source is fixedly provided with a control switch A, the series inductance group is connected with a double-throw switch A through a lead, a plurality of control switches B are arranged in the series inductance group, two wiring ends of the double-throw switch A are respectively connected with the parallel capacitor group and the amplifier through leads, through the arrangement of the control switch B and the control switch C, different inductance values can be manufactured, the increase or decrease of capacitance values of the parallel capacitor bank can be realized, so that the respective capacitance of the LC and the time constant of oscillation are changed, i.e. the period of oscillation is adjusted, and the control switch a can realize the adjustment of the amplitude of the oscillation initial voltage and the control of the oscillation attenuation duration.
Description
Technical Field
The invention relates to an attenuation wave generator, in particular to a special attenuation wave generator for high-voltage equipment.
Background
With the scientific research of the national advanced enterprise and public institution, aiming at various research developments of power grid equipment are rapid, an attenuated wave test source with higher flexibility is adopted, the capture and simulation test of various defects is favorably developed, the operation state of research equipment has very good practical significance, the existing attenuator is usually used for carrying out gain attenuation on signals, but the attenuation transition characteristic is not clearly required, for example, after the sine wave generator outputs, the attenuation of the amplitude from 10V to 2V can be realized through attenuation, but in reality, the situation can be met: the highly repetitive 10V to 2V attenuated transition waveform needs to be provided to observe the energy storage and oscillation characteristics of the tested device, and for further research, signals with different frequencies need to be attenuated and provided to observe the transition process of response signals at different frequencies, and in a precise electronic circuit, an attenuated signal generator can have multiple control modes and output modes, but for high-voltage electrical devices, devices in the field are few, and the main reasons are that: during transient characteristic analysis, an integrated device with various transient waveforms and acquisition is generally adopted, various algorithms and acquisition are mainly integrated, so that the device is heavy, an independent attenuation signal generator is lacked, the voltage is low during testing, the operability is poor, namely, the device has automatic output and acquisition functions only by performing transient characteristic analysis according to standards and does not have a self-defining function aiming at attenuation time delay, voltage, symmetry and the like.
Disclosure of Invention
The present invention aims to overcome the above-mentioned shortcomings and provide a technical solution to solve the above-mentioned problems.
An attenuation wave generator special for high-voltage equipment comprises a series inductance group, a parallel capacitor group, an amplifier and a rectifier, the series inductance group is electrically connected with a precision signal source, the output end of the precision signal source is fixedly provided with a control switch A, the series inductance group is connected with a double-throw switch A through a lead, a plurality of control switches B are arranged in the series inductance group, two terminals of the double-throw switch A are respectively connected with a parallel capacitor bank and an amplifier through wires, a plurality of control switches C are arranged in the parallel capacitor bank, the amplifier is connected with a double-throw switch B through a lead, two wiring ends of the double-throw switch B are respectively connected with a signal transmission socket and a rectifier through wires, the control switches C and the control switches B are electrically connected with a single chip microcomputer, and the single chip microcomputer is electrically connected with a control panel.
As a further scheme of the present invention, the parallel capacitor bank is a structure in which a plurality of capacitors are connected in parallel, and the capacitors in the parallel capacitor bank are respectively connected in series with a control switch C.
As a further aspect of the present invention, the series inductance group is a structure in which a plurality of inductors are connected in series, and the inductors in the series inductance group are respectively connected in parallel with a control switch B.
As a further scheme of the present invention, the control switch a is a voltage regulator.
As a further scheme of the invention, the control switch B and the control switch C are both electromagnetic relays.
The invention has the beneficial effects that:
(1) the invention can manufacture different inductance values by setting the control switch B and the control switch C, can realize the increase or reduction of capacitance values of the parallel capacitor bank, so that the respective capacitance of the LC and the time constant of oscillation are changed, namely the period of oscillation is adjusted, the control switch A can realize the adjustment of the amplitude of the initial voltage of oscillation and the control of the duration time of oscillation attenuation, and can correspondingly control the charging time of the capacitor or the energy storage size of the inductor under the action of the control switch A, thereby changing the duration time of oscillation.
(2) The precise signal source has the functions of direct current pulse or direct current source and alternating current pulse, can realize the output of pulse alternating current voltage with different frequencies, has high application value, has two output modes after the signal is output by the amplifier, has two output modes of positive half-wave output and negative half-wave output after the signal enters the rectifier, and can meet different experimental requirements.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a block diagram of the components of the present invention;
fig. 2 is a control block diagram of the control switch C and the control switch B of the present invention.
In the figure: 1. a series inductance group; 2. a parallel capacitor bank; 3. an amplifier; 4. a rectifier; 5. a precision signal source; 6. a control switch A; 7. a control switch B; 8. a control switch C; 9. a single chip microcomputer; 10. a control panel; 11. a double throw switch A; 12. a double throw switch B; 13. a signal transmission jack.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, in the embodiment of the present invention, a special attenuation wave generator for high voltage equipment includes a series inductor group 1, a parallel capacitor group 2, an amplifier 3 and a rectifier 4, the series inductor group 1 is electrically connected to a precision signal source 5, a control switch a6 is fixedly installed at an output end of the precision signal source 5, the control switch a6 is a switch for controlling an LC oscillator to start and stop, the series inductor group 1 is connected to a double-throw switch a11 through a wire, a plurality of control switches B7 are installed in the series inductor group 1, two terminals of the double-throw switch a11 are respectively connected to the parallel capacitor group 2 and the amplifier 3 through wires, a plurality of control switches C8 are installed in the parallel capacitor group 2, the amplifier 3 is connected to a double-throw switch B12 through a wire, two terminals of the double-throw switch B12 are respectively connected to a signal transmission jack 13 and the rectifier 4, the control switches C8 and the control switches B7 are electrically connected with the single-chip microcomputer 9, working procedures can be set conveniently, accurate regulation and control can be achieved, the single-chip microcomputer 9 is electrically connected with the control panel 10, the single-chip microcomputer 9 is STC15W204S, the rectifier 4 is GDF-1000/12, the amplifier 3 is CD4573, the double-throw switch A11 and the double-throw switch B12 are EA86KX, the control switches B7 and C8 are JZC1-44, and the control switch A6 is ZY-D2000.
Further, in the present embodiment, the parallel capacitor bank 2 is a structure in which a plurality of capacitors are connected in parallel, and the capacitors in the parallel capacitor bank 2 are respectively connected in series with one control switch C8, so that the capacitance value of the parallel capacitor bank 2 can be increased or decreased.
Further, in the present embodiment, the series inductor group 1 has a structure of a plurality of inductors connected in series, and the inductors in the series inductor group 1 are respectively connected in parallel with a control switch B7, so that different inductance values can be manufactured.
Further, in the present embodiment, the control switch a6 is a voltage regulator, and can realize adjustment of the oscillation initial voltage amplitude and control of the oscillation attenuation duration.
Further, in the present embodiment, the control switch B7 and the control switch C8 are both electromagnetic relays, which is convenient for operation.
The working principle of the invention is as follows: the connection status of the series inductance group 1 can be controlled by opening and closing a plurality of control switches B7, different inductance values can be manufactured, similarly, the parallel capacitor group 2 is a parallel structure of a plurality of capacitors, under the action of the control switch C8, the increase or decrease of the capacitance value of the parallel capacitor group 2 can be realized, therefore, the respective capacitance of LC and the oscillation time constant are changed, namely, the oscillation period is adjusted, on the other hand, the control switch A6 can realize the adjustment of the oscillation initial voltage amplitude and the control of the oscillation attenuation duration time, under the action of the control switch A6, the charging time of the capacitor or the energy storage size of the inductor can be correspondingly controlled, thereby the oscillation duration time can be changed, in addition, the precision signal source 5 has the functions of direct current pulse or direct current source, and also has the function of alternating current pulse, namely, the output of pulse alternating current voltage with different frequencies can be realized, the benefits in this mode are:
the pulse voltage can be continuously output, the consistency and the repeatability of the LC oscillation signal in a time domain range can be conveniently researched, especially in a noise environment, signals of multiple periods can be compared, and the signal-to-noise ratio can be favorably improved.
And secondly, the characteristics of oscillation signals of positive and negative half cycles can be observed.
And thirdly, the initial energy of LC resonance can be changed by changing the pulse period, so that the attenuation rate can be changed, and the characteristic oscillation signals under different attenuation states can be conveniently contrasted and observed.
In addition, the signal has two kinds of output modes after being output by the amplifier 3, the alternating current attenuation signal can be directly output, the alternating current attenuation signal can also enter the rectifier 4, two kinds of output modes of positive half-wave output and negative half-wave output are provided, the rectifier 4 can assist part of test equipment to carry out experiments, and the positive voltage output and the negative voltage output can be divided according to different test conditions.
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 person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (1)
1. The utility model provides a special decay wave generator of high-tension apparatus, includes series inductance group (1), shunt capacitance group (2), amplifier (3) and rectifier (4), series inductance group (1) and accurate signal source (5) electric connection, the output fixed mounting of accurate signal source (5) has control switch A (6), series inductance group (1) is connected with double-throw switch A (11), its characterized in that through the wire: a plurality of control switches B (7) are installed in the series inductance group (1), two wiring ends of the double-throw switch A (11) are respectively connected with the parallel capacitor group (2) and the amplifier (3) through wires, a plurality of control switches C (8) are installed in the parallel capacitor group (2), the amplifier (3) is connected with the double-throw switch B (12) through wires, two wiring ends of the double-throw switch B (12) are respectively connected with the signal transmission jack (13) and the rectifier (4) through wires, the control switches C (8) and the control switches B (7) are both electrically connected with the single chip microcomputer (9), and the single chip microcomputer (9) is electrically connected with the control panel (10); parallel capacitor group (2) are a plurality of capacitor parallel structure, the condenser in parallel capacitor group (2) is established ties respectively and is had a control switch C (8), series inductance group (1) is a plurality of inductor series structure, the inductor in series inductance group (1) is parallelly connected respectively and has a control switch B (7), control switch A (6) are the voltage regulator, control switch B (7) and control switch C (8) are electromagnetic relay.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811445781.XA CN109391160B (en) | 2018-11-29 | 2018-11-29 | Attenuation wave generator special for high-voltage equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811445781.XA CN109391160B (en) | 2018-11-29 | 2018-11-29 | Attenuation wave generator special for high-voltage equipment |
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| CN109391160A CN109391160A (en) | 2019-02-26 |
| CN109391160B true CN109391160B (en) | 2020-09-29 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1930544A (en) * | 2004-03-11 | 2007-03-14 | 英特赛尔美国股份有限公司 | Droop amplifier circuit for a dc-dc converter |
| CN101356730A (en) * | 2006-02-13 | 2009-01-28 | 株式会社村田制作所 | Saw filter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103414327A (en) * | 2013-08-14 | 2013-11-27 | 合肥工业大学 | Inverter output filter with a set of series resonance subcircuits |
| CN104990649B (en) * | 2015-07-29 | 2017-11-17 | 重庆交通大学 | A kind of simple steel strand prestress measurement apparatus and method |
| CN205880029U (en) * | 2016-06-16 | 2017-01-11 | 深圳市鼎阳科技有限公司 | Trigger interconnected circuit and oscilloscope |
| CN106849257A (en) * | 2017-03-13 | 2017-06-13 | 深圳市尧元科技有限公司 | The automatic impedance matching device and method of magnetic coupling resonance formula wireless charging system |
| CN108667154B (en) * | 2018-05-21 | 2024-03-29 | 南昌大学 | Multi-frequency multi-load wireless charging platform with load isolation characteristic |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1930544A (en) * | 2004-03-11 | 2007-03-14 | 英特赛尔美国股份有限公司 | Droop amplifier circuit for a dc-dc converter |
| CN101356730A (en) * | 2006-02-13 | 2009-01-28 | 株式会社村田制作所 | Saw filter |
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