CN105548626A - Pulse electric field generation apparatus - Google Patents
Pulse electric field generation apparatus Download PDFInfo
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- CN105548626A CN105548626A CN201510979724.XA CN201510979724A CN105548626A CN 105548626 A CN105548626 A CN 105548626A CN 201510979724 A CN201510979724 A CN 201510979724A CN 105548626 A CN105548626 A CN 105548626A
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- electric field
- voltage
- generation device
- voltage pulse
- field generation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/28—Provision in measuring instruments for reference values, e.g. standard voltage, standard waveform
Abstract
The invention provides a pulse electric field generation apparatus. Through a high-voltage pulse power supply, high-voltage pulse voltage input is provided for an anode plate. A dual trace oscilloscope is used to display a high-voltage pulse voltage and a cathode plate is grounded. Through setting the high-voltage pulse power supply, a plurality of conductive needle rods on the anode plate and the cathode plate can generate an electric field formed by a transient voltage with high-frequency pulse electric field intensity in an insulation groove so that an experiment electric field satisfying a requirement is provided for a voltage transformer to carry out transient voltage detection.
Description
Technical field
The present invention relates to power frequency electric field field of measuring technique, particularly a kind of impulse electric field generation device.
Background technology
Intelligent grid is the developing direction of current electric system, voltage transformer (VT) is as the terminal device of intelligent grid, the reliability and stability of its performance seems particularly important, therefore, domestic and international researcher has carried out large quantifier elimination at power frequency electric field direction of measurement, especially contactless voltage transformer (VT), and it is measured based on electrostatic induction principle, detected the electric field intensity of surrounding space by the probe of voltage transformer (VT), then backstepping calculates the voltage of conductor to be measured.When conductor voltage change to be measured, surrounding electric field intensity changes thereupon, and the detection signal of voltage transformer (VT) also changes thereupon.
Voltage transformer (VT) is divided into steady state voltage to detect by use occasion and transient voltage detects.The research being applied to the contactless voltage transformer (VT) that steady state voltage detects is comparatively simple, corresponding research experiment condition easily realizes, but difficulty is very large when studying the voltage transformer (VT) being applied to transient voltage detection, mainly because when carrying out transient voltage test experience, the electric field that the transient voltage of high-frequency impulse electric field intensity is formed not easily obtains.
Summary of the invention
The invention provides a kind of impulse electric field generation device, is the electric field that voltage transformer (VT) provides transient voltage to detect.
For realizing described object, the technical scheme that the application provides is as follows:
A kind of impulse electric field generation device, comprising: resistance, high-field electrode joint, high-voltage pulse power source, dual trace oscilloscope, insulation tank, minus plate and be provided with the positive plate of multiple conduction needle bar; Wherein:
The negative electrode of described high-voltage pulse power source is connected with a negative electrode of described dual trace oscilloscope and described minus plate, tie point ground connection;
The anode of described high-voltage pulse power source is popped one's head in one end of described resistance and two high pressure oscilloscopes of described high-voltage pulse power source respectively and is connected;
The other end of described resistance is connected with another negative electrode of described dual trace oscilloscope, and tie point is connected with described positive plate by described high-field electrode joint;
Described positive plate is arranged at one end of described insulation tank; Described minus plate is arranged at the other end of described insulation tank; Described multiple conduction needle bars on described positive plate are between described positive plate and described minus plate, perpendicular to described positive plate and described minus plate.
Preferably, described insulation tank comprises:
First draw-in groove of fixing described positive plate;
Second draw-in groove of fixing described minus plate.
Preferably, described insulation tank also comprises: the 3rd draw-in groove of fixing described minus plate.
Preferably, the input voltage of described high-voltage pulse power source is alternating current 220V, and maximal input is 2KW, and maximum operation frequency is 200HZ, and output voltage is 50KV, and output pulse width is 1 μ s.
Preferably, the electric field intensity that described impulse electric field generation device produces is greater than 1.0KV/cm.
Preferably, the electric field intensity that described impulse electric field generation device produces is less than 2.0KV/cm.
Preferably, described high-voltage pulse power source is solid-state switch type high-voltage pulse power source.
Impulse electric field generation device provided by the invention, by high-voltage pulse power source for positive plate provides the input of high-voltage pulse, and is carried out the displaying of high-voltage pulse, minus plate ground connection by dual trace oscilloscope; By the setting to described high-voltage pulse power source, the electric field that the transient voltage that the multiple conduction needle bar on described positive plate and described minus plate can be made in insulation tank to produce high-frequency impulse electric field intensity is formed, and then provide the experiment met the demands electric field for voltage transformer (VT) carries out transient voltage detection.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the impulse electric field generation device that the embodiment of the present invention provides;
Fig. 2 is the three-view diagram of the positive plate that another embodiment of the present invention provides;
Fig. 3 is the three-view diagram of the minus plate that another embodiment of the present invention provides;
Fig. 4 is the three-view diagram of the insulation tank that another embodiment of the present invention provides.
Embodiment
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, are described in detail the specific embodiment of the present invention below in conjunction with accompanying drawing.
The invention provides a kind of impulse electric field generation device, is the electric field that voltage transformer (VT) provides transient voltage to detect.
Concrete, described impulse electric field generation device, as shown in Figure 1, comprising: resistance R, high-field electrode joint 5, high-voltage pulse power source, dual trace oscilloscope, insulation tank 2, minus plate 3 and be provided with the positive plate 1 of multiple conduction needle bar 6; Wherein:
The negative electrode of described high-voltage pulse power source is connected with a negative electrode of described dual trace oscilloscope and minus plate 3, tie point ground connection;
The anode of described high-voltage pulse power source is popped one's head in one end of resistance R and two high pressure oscilloscopes of described high-voltage pulse power source respectively and 7 to be connected;
The other end of resistance R is connected with another negative electrode of described dual trace oscilloscope, and tie point is connected with positive plate 1 by high-field electrode joint 5;
Positive plate 1 is arranged at one end of insulation tank 2; Minus plate 3 is arranged at the other end of insulation tank 2; Multiple conduction needle bars 6 on positive plate 1 are between positive plate 1 and minus plate 3, perpendicular to positive plate 1 and minus plate 3.
Concrete principle of work is:
As shown in Figure 2, the three-view diagram of minus plate 3 as shown in Figure 3 for the three-view diagram of multiple conduction needle bars 6 of positive plate 1 and upper setting thereof.When the high-voltage pulse that described high-voltage pulse power source produces is added on multiple conduction needle bar 6 by high-field electrode joint 5 and positive plate 1 successively, the structure due to needle bar electrode can form the impulse electric field of high pressure in insulation tank 2; Again by arranging adjustment for described high-voltage pulse power source, the electric field formed under different electric pressure in electrified body transient overvoltage situation can be simulated, voltage transformer (VT) is positioned in this electric field, just can recording voltage mutual inductor use time various performance index.
The described impulse electric field generation device that the present embodiment provides, by described high-voltage pulse power source for positive plate 1 provides the input of high-voltage pulse, and carries out high-voltage pulse U by described dual trace oscilloscope
rand U
iNdisplaying, minus plate 3 ground connection; By the setting to described high-voltage pulse power source, the electric field that the transient voltage that the multiple conduction needle bars 6 on positive plate 1 and minus plate 3 can be made in insulation tank 2 to produce high-frequency impulse electric field intensity is formed, and then provide the experiment met the demands electric field for voltage transformer (VT) carries out transient voltage detection.
Preferably, as shown in Figure 4, insulation tank 2 comprises:
First draw-in groove 401 of fixed anode plate 1;
Second draw-in groove 402 (draw-in groove 8 also namely demonstrated in Figure 1) of fixed negative pole plate 3.
Preferably, as shown in Figure 3, insulation tank 2 also comprises:
3rd draw-in groove 403 (draw-in groove 4 also namely demonstrated in Figure 1) of fixed negative pole plate 3.
Figure 4 shows that the three-view diagram of insulation tank 2, wherein, the first draw-in groove 401, for being blocked by positive plate 1, makes it be fixed on one end in insulation tank 2; Second draw-in groove 402, for being blocked by minus plate 3, makes it be fixed on the other end in insulation tank 2, vertically opposite with the multiple conduction needle bars 6 on positive plate 1; In addition, the 3rd draw-in groove 403 can provide an alternate location for minus plate 3, makes the distance between the multiple conduction needle bars 6 on itself and positive plate 1 adjustable, meets the demand of different electric field intensity.
What deserves to be explained is, in concrete practical application, in insulation tank 2, multiple draw-in groove can also be set, think that positive plate 1 and minus plate 3 provide multiple alternate location, be more suitable for the selection of multiple embody rule environment.
Preferably, the input voltage of described high-voltage pulse power source is alternating current 220V, and maximal input is 2KW, and maximum operation frequency is 200HZ, and output voltage is 50KV, and output pulse width is 1 μ s.
Preferably, the electric field intensity that described impulse electric field generation device produces is greater than 1.0KV/cm.
Preferably, the electric field intensity that described impulse electric field generation device produces is less than 2.0KV/cm.
In concrete practical application, reference can be provided by adopting numerical simulation analysis for engineering entity design, improving the performance of equipment.Concrete, multiple physical field simulation software COMSOL can be adopted to carry out sunykatuib analysis.Under existing power source equipment condition, insulation tank 2 inner electrode parameter is analyzed and optimized, to meet insulation tank 2 internal electric field numerical value at more than 1KV/cm.The parameter of described high-voltage pulse power source specifically can arrange as follows: input voltage is alternating current 220V, the maximum 2KW of power input, maximum operation frequency 200Hz, output voltage 50KV, and output pulse width is 1 μ s.
Under above-mentioned parameter is arranged, insulation tank 2 internal electric field can be made to distribute and be approximately uniform field, its direction of an electric field is the minus plate 3 being pointed to the ground connection on opposite by the conduction needle bar 6 of positively charged.This electric field is with the increase of the distance with conduction needle bar 6, and more evenly, whole cavity field strength range is trend: between 1.0KV/cm ~ 2.0KV/cm.By emulation, can obtain pointing on the direction of minus plate 3 of the ground connection on opposite at conduction needle bar 6, by the end points of conduction needle bar 6 away from positive plate 1, the cross section internal electric field of its 0.3m is distributed as 1.32KV/cm ~ 1.33KV/cm, and visible Electric Field Distribution is uniform substantially.And the electric field that above constructional device setting parameter can meet required by expection is greater than 1KV/cm.
Preferably, described high-voltage pulse power source is solid-state switch type high-voltage pulse power source.
For voltage requirements in this applied environment very high (several kilovolts ~ tens kilovolts), and momentary current very little (several mA ~ hundreds of mA), and discharge time is very short, required electric field requirement was reached before generation medium discharge, the number of pulses that p.s. occurs only has several to tens, individual pulse pulsewidth is several delicate to 20 delicate, thus system total power is little, does not belong to pulse power category.Solid-state switch type high-voltage pulse power source is adopted based on high-voltage pulse power source described in this; its principal functional structure comprises high-voltage pulse energy-storage function, drives function, dynamic voltage balancing function, take CPU as the controlling functions of core, overcurrent and short-circuit protection function etc.; be not specifically limited herein, can select accordingly depending on its embody rule environment.
It should be noted that, the grid-connected control method of the cascade connection type photovoltaic DC-to-AC converter that the embodiment of the present invention provides achieves the function of the voltage self-equilibrating on power capacity, be understandable that, the grid-connected control method of the three-phase three-wire system be made up of the grid-connected control method of this cascade connection type photovoltaic DC-to-AC converter and three-phase four-wire system cascade connection type photovoltaic DC-to-AC converter has this advantage equally.
The above is only preferred embodiment of the present invention, not does any pro forma restriction to the present invention.Although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention.Any those of ordinary skill in the art, do not departing under technical solution of the present invention ambit, the Method and Technology content of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solution of the present invention, or be revised as the Equivalent embodiments of equivalent variations.Therefore, every content not departing from technical solution of the present invention, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belongs in the scope of technical solution of the present invention protection.
Claims (7)
1. an impulse electric field generation device, is characterized in that, comprising: resistance, high-field electrode joint, high-voltage pulse power source, dual trace oscilloscope, insulation tank, minus plate and be provided with the positive plate of multiple conduction needle bar; Wherein:
The negative electrode of described high-voltage pulse power source is connected with a negative electrode of described dual trace oscilloscope and described minus plate, tie point ground connection;
The anode of described high-voltage pulse power source is popped one's head in one end of described resistance and two high pressure oscilloscopes of described high-voltage pulse power source respectively and is connected;
The other end of described resistance is connected with another negative electrode of described dual trace oscilloscope, and tie point is connected with described positive plate by described high-field electrode joint;
Described positive plate is arranged at one end of described insulation tank; Described minus plate is arranged at the other end of described insulation tank; Described multiple conduction needle bars on described positive plate are between described positive plate and described minus plate, perpendicular to described positive plate and described minus plate.
2. impulse electric field generation device according to claim 1, is characterized in that, described insulation tank comprises:
First draw-in groove of fixing described positive plate;
Second draw-in groove of fixing described minus plate.
3. impulse electric field generation device according to claim 2, is characterized in that, described insulation tank also comprises: the 3rd draw-in groove of fixing described minus plate.
4. impulse electric field generation device according to claim 1, is characterized in that, the input voltage of described high-voltage pulse power source is alternating current 220V, and maximal input is 2KW, and maximum operation frequency is 200HZ, and output voltage is 50KV, and output pulse width is 1 μ s.
5. impulse electric field generation device according to claim 4, is characterized in that, the electric field intensity that described impulse electric field generation device produces is greater than 1.0KV/cm.
6. impulse electric field generation device according to claim 5, is characterized in that, the electric field intensity that described impulse electric field generation device produces is less than 2.0KV/cm.
7. impulse electric field generation device according to claim 1, is characterized in that, described high-voltage pulse power source is solid-state switch type high-voltage pulse power source.
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| CN201510979724.XA CN105548626B (en) | 2015-12-23 | 2015-12-23 | A kind of impulse electric field generation device |
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| CN201510979724.XA CN105548626B (en) | 2015-12-23 | 2015-12-23 | A kind of impulse electric field generation device |
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| CN105948372A (en) * | 2016-06-24 | 2016-09-21 | 石家庄铁道大学 | Industrial sewage treatment technique and system based on high-voltage nanosecond pulsed electric field technology |
| CN107768140A (en) * | 2016-08-16 | 2018-03-06 | 中国电力科学研究院 | A kind of method using screening electrodes plate on insulating fixing piece fixed standard capacitor |
| CN109471014A (en) * | 2018-10-30 | 2019-03-15 | 江苏赛诺格兰医疗科技有限公司 | A kind of detectable signal simulation forming circuit and detector board test platform |
| CN110505772A (en) * | 2018-05-18 | 2019-11-26 | 蒋亮健 | Box electrostatic field generator device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105948372A (en) * | 2016-06-24 | 2016-09-21 | 石家庄铁道大学 | Industrial sewage treatment technique and system based on high-voltage nanosecond pulsed electric field technology |
| CN107768140A (en) * | 2016-08-16 | 2018-03-06 | 中国电力科学研究院 | A kind of method using screening electrodes plate on insulating fixing piece fixed standard capacitor |
| CN107768140B (en) * | 2016-08-16 | 2021-03-26 | 中国电力科学研究院 | Method for fixing voltage-sharing electrode plate on standard capacitor by using insulating fixing piece |
| CN110505772A (en) * | 2018-05-18 | 2019-11-26 | 蒋亮健 | Box electrostatic field generator device |
| CN109471014A (en) * | 2018-10-30 | 2019-03-15 | 江苏赛诺格兰医疗科技有限公司 | A kind of detectable signal simulation forming circuit and detector board test platform |
| CN109471014B (en) * | 2018-10-30 | 2021-01-19 | 江苏赛诺格兰医疗科技有限公司 | Detection signal simulation forming circuit and detector board card test platform |
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| CN105548626B (en) | 2018-11-27 |
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