CN103308736B - Small-sized integrated steep pulse generating means - Google Patents
Small-sized integrated steep pulse generating means Download PDFInfo
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- CN103308736B CN103308736B CN201310276540.8A CN201310276540A CN103308736B CN 103308736 B CN103308736 B CN 103308736B CN 201310276540 A CN201310276540 A CN 201310276540A CN 103308736 B CN103308736 B CN 103308736B
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- 239000003990 capacitor Substances 0.000 claims abstract description 45
- 239000002828 fuel tank Substances 0.000 claims abstract description 10
- 230000015556 catabolic process Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 12
- 238000010586 diagram Methods 0.000 description 9
- 230000001105 regulatory effect Effects 0.000 description 6
- 230000000630 rising effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000004146 energy storage Methods 0.000 description 3
- 230000032258 transport Effects 0.000 description 3
- 230000005684 electric field Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 108010022579 ATP dependent 26S protease Proteins 0.000 description 1
- 241000272165 Charadriidae Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Generation Of Surge Voltage And Current (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The disclosure relates to a kind of small-sized integrated steep pulse generating means, comprise fuel tank and hang the oil immersed type impulse voltage generator in fuel tank internal by insulating support, this generator comprises the impulse voltage generator loop formed based on multiple impulse capacitor, gas spark switch and resistance; Multiple annular capacitor shields structure; First, second and the 3rd insulating part; Multiple impulse capacitor and gas spark switch are alternately fixed on the second insulating part along same axis; Layout multiple annular capacitor shields structure around multiple impulse capacitor, is fixed on the first insulating part by multiple annular capacitor shields structure; Multiple resistance is arranged on the pros and cons of the 3rd insulating part; Realized by hi-line and multiple resistance, electrical connection between impulse capacitor and gas spark switch; 3rd insulating part is fixed on the second insulating part; Insulating support is connected with the first insulating part.Exportable pulse up to standard when the disclosure is done experiment to Large Copacity test product.
Description
Technical field
The disclosure relates to steep pulse generating means, especially, relates to a kind of small-sized integrated steep pulse generating means.
Background technology
In prior art, generally produce steep pulse by impulse voltage generator, concrete, surge voltage can be exported by common open type impulse voltage generator, through built on stilts bus, then by steepness gap, steepness is carried out to described surge voltage, obtain required steep pulse.
Fig. 1 is existing tower impulse voltage generator schematic diagram.
As shown in Figure 1, this traditional open steep pulse generating means bulky, is not easy to transport, is not easy to carry out GIS(GasInsulatedSwitchgear, gas insulated combined electric appliance equipment at the scene) insulation characterisitic test; Meanwhile, because this device is the design of traditional open type, because considering insulating requirements, its physical dimension is large, and be nonlinear organization, thus makes loop inductance large, the pulse steeping weak effect of generation and be subject to such environmental effects larger.When testing Large Copacity test product, easily cause waveform not up to standard.
Summary of the invention
The disclosure proposes new technical scheme in view of at least one in above problem.
The disclosure provides a kind of small-sized integrated steep pulse generating means in one, and it can effectively reduce the loop inductance of device, and then makes the rising edge exporting pulse up to standard.
According to the disclosure, provide a kind of small-sized integrated steep pulse generating means, comprise fuel tank and be suspended to the oil immersed type impulse voltage generator of fuel tank internal by insulating support oblique pull, wherein,
Oil immersed type impulse voltage generator comprises:
Based on the impulse voltage generator loop that multiple impulse capacitor, multiple gas spark switch and multiple resistance are formed;
Multiple annular capacitor shields structure;
First insulating part;
Second insulating part; And
3rd insulating part;
Wherein,
Multiple impulse capacitor and multiple gas spark switch are alternately fixed on the second insulating part along same axis;
Layout multiple annular capacitor shields structure around multiple impulse capacitor, and multiple annular capacitor shields structure is fixed on the first insulating part;
Multiple resistance is arranged on the pros and cons of the 3rd insulating part;
The multiple resistance in impulse voltage generator loop, the electrical connection between multiple impulse capacitor and multiple gas spark switch is realized by the through hole on hi-line and the 3rd insulating part;
3rd insulating part is fixed on the second insulating part;
Insulating support is connected with the first insulating part.
In embodiments more of the present disclosure, multiple gas spark switch adopts three electrode field distortion switch, is series in impulse voltage generator loop by gas circuit.
In embodiments more of the present disclosure, in impulse voltage generator loop, from DC charging end, multiple gas spark switch arranges from low to high according to himself voltage breakdown.
In embodiments more of the present disclosure, the sparking voltage of each gas spark switch is by the gentle pressure-controlled of gaseous species in its place cavity.
In embodiments more of the present disclosure, the surface of insulating support is equidistant umbrella skirt construction.
In embodiments more of the present disclosure, umbrella spacing is equal with full skirt thickness, and full skirt edge is fillet.
In embodiments more of the present disclosure, the number of full skirt thickness and umbrella is determined according to insulating requirements.
In technical scheme of the present disclosure, the small-sized integrated steep pulse generating means provided has totally-enclosed, compact and is convenient to the feature of transporting, due to compact conformation, therefore can effectively reduce the loop inductance of whole device, and then make device can export steep pulse up to standard.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the disclosure, forms a application's part.In the accompanying drawings:
Fig. 1 is existing tower impulse voltage generator schematic diagram.
Fig. 2 is the structural representation of the small-sized integrated steep pulse generating means of a disclosure embodiment.
Fig. 3 is the schematic diagram in Marx loop.
Fig. 4 is that the disclosure first assembles schematic diagram.
Fig. 5 is that the disclosure second assembles schematic diagram.
Fig. 6 is that the disclosure the 3rd assembles schematic diagram.
Fig. 7 is that the disclosure the 4th assembles schematic diagram.
Embodiment
Below with reference to accompanying drawings the disclosure is described.It should be noted that following being described in is only explanatory and exemplary in essence, never as any restriction to the disclosure and application or use.Unless stated otherwise, otherwise positioned opposite and numerical expression and the numerical value of the parts of setting forth in an embodiment and step do not limit the scope of the present disclosure.In addition, technology well known by persons skilled in the art, method and apparatus may not be discussed in detail, but are intended to the part becoming instructions in appropriate circumstances.
In view of this, the disclosure following example provides a kind of totally-enclosed, compact, is convenient to the integrated small steep pulse generating means that transports.Because whole pulse producer is immersed in the high transformer oil of electric strength, physical dimension can be reduced, because this reducing loop inductance, in addition, because pulse producer have employed linear design, compact conformation, decrease the line that there is no need, reduce the volume of pulse generating unit equally.Therefore, the design of this integration and miniaturization can effectively reduce the loop inductance of whole device, when carrying out withstand voltage test for Large Copacity test product, output rising edge of a pulse can be made up to standard.
Fig. 2 is the structural representation of the small-sized integrated steep pulse generating means of a disclosure embodiment.
As shown in Figure 2, this pulse generating unit can be comprised fuel tank 1 and is suspended to the oil immersed type impulse voltage generator 2 of fuel tank 1 inside by insulating support 6-1,6-2,6-3 oblique pull, the mode that this impulse voltage generator is immersed in transformer oil by oblique pull suspention can reduce physical dimension, improve edge flashing voltage, wherein
Oil immersed type impulse voltage generator 2 can comprise again:
Based on the impulse voltage generator loop that multiple impulse capacitor 9, multiple gas spark switch 8 are formed with multiple resistance 5, Capacitance parallel connection charging wherein, discharged in series;
Multiple annular capacitor shields structure 4-1 to 4-6;
First insulating part 3-1;
Second insulating part 3-2; And
3rd insulating part 3-3;
Wherein,
Multiple impulse capacitor 9 is alternately fixed on the second insulating part 3-2 along same axis with multiple gas spark switch 8, and the mode that this impulse capacitor and gas spark switch linearly arrange significantly shorten loop length, effectively reduces loop inductance;
Layout multiple annular capacitor shields structure 4-1 to 4-6 around multiple impulse capacitor 9, to improve the Electric Field Distribution of whole device, and prevent capacitor bight from putting because of local high field intensity generation office, infringement capacitor, and multiple annular capacitor shields structure is fixed on the first insulating part 3-1;
Multiple resistance 5 is arranged on the pros and cons of the 3rd insulating part 3-3, to make the structure of whole impulse voltage generator compacter, realizes Miniaturization Design;
The multiple resistance 5 in impulse voltage generator loop, the electrical connection between multiple impulse capacitor 9 and multiple gas spark switch 8 is realized by the through hole on hi-line and the 3rd insulating part 3-3;
3rd insulating part 3-3 is fixed on the second insulating part 3-2;
Insulating support 6-1,6-2,6-3 are connected with the first insulating part 3-1.
The small-sized integrated steep pulse generating means that this embodiment provides has totally-enclosed, compact and is convenient to the feature of transporting, due to compact conformation, therefore can effectively reduce the loop inductance of whole device, and then make device can export steep pulse up to standard.
Wherein, multiple gas spark switch 8 can adopt three electrode field distortion switch, and to ensure the consistance of switch discharge, these gas spark switch are series in impulse voltage generator loop by gas circuit, impulse voltage generator loop as shown in Figure 3.
Further, in impulse voltage generator loop, from DC charging end, multiple gas spark switch 8 arranges from low to high according to himself voltage breakdown, near the low easy electric discharge of several switch self-breakdown voltages of DC charging end, its several switches below are also easy to electric discharge because of multiplication of voltage, therefore, synchronism during device action can be improved.
Multiple gas spark switch 8 is in airtight cavity, each gas spark switch has an air admission hole and a venthole, an entirety also surplus air admission hole and a venthole after being together in series by multiple gas spark switch, because its electric strength of gas with various is different; Its sparking voltage of same gas also can change with air pressure, therefore, controls gaseous species in the cavity of whole gas spark switch system place and air pressure according to trial voltage (that is, the DC charging voltage born needed for each gas spark switch).Such as, if trial voltage is higher, then can adopt the gas that electric strength is higher, or increase the air pressure in gas switch, make switch discharge synchronous.
In addition, the surface of insulating support 6-1,6-2,6-3 is equidistant umbrella skirt construction, can increase and climb sudden strain of a muscle distance.
Wherein, umbrella spacing is equal with full skirt thickness, and full skirt edge is fillet.And the number of full skirt thickness and umbrella is determined according to insulating requirements.
Further, in order to the pulse front edge making oil immersed type impulse voltage generator export is adjustable, wave regulating resistor 7 can be set at the output terminal of generator, this wave regulating resistor is arranged on annular capacitor shields structure 4-6,4-7 and 4-8, and annular capacitor shields structure 4-6,4-7 and 4-8 are fixed on again on the 4th insulating part 3-4.Because it is higher to bear pressure drop ratio in the middle of these two rings, so there is cluster parachute, increase creepage distance.
Wave regulating resistor 7 stepping is adjustable, for regulating waveform parameter, its resistance value is relevant to the loop inductance of whole device, should ensure that rising edge of a pulse is enough steep and make whole loop be in underdamping state, take into account restriction discharge current again, unlikelyly make discharge current excessive and testing equipment and test product are caused damage.This wave regulating resistor 7 can adopt two-wire opposing connection mode.
Impulse capacitor in above-described embodiment can be small inductor impulse capacitor.
Disclosure above-described embodiment is compared with traditional open impulse voltage generator, have employed switched capacitor integral structure, by insulating support oblique pull sus-pension, impulse voltage generator is immersed in transformer oil, realize the design of whole apparatus integration, the reliability of assurance device.Coordinate annular capacitor shields structure and the 3rd insulating part simultaneously, optimize Electric Field Distribution, reduce physical dimension; Gas spark switch is placed in the cavity of airtight inflation, kind and the air pressure of gas in cavity is changed according to trial voltage, putting in order of gas spark switch can arrange from low to high according to its self-breakdown voltage, the synchronism of switch motion during the work of energy intensifier.Integrated smallization design effectively reduces the loop inductance of whole device, when carrying out withstand voltage test for Large Copacity test product, can ensure the steepness exporting pulse.
In addition, the steep pulse generator in disclosure embodiment can also coordinate intermediate energy storage oil line and peaking switch, by the cooperation of wave regulating resistor and peaking switch gap adjustment unit, obtains required steep pulse.Particularly, be stored in by the steep wave that steep pulse generator produces in intermediate energy storage oil line, then peaking switch discharges after reaching self-breakdown voltage, will produce the waveform steeper than pulse producer output terminal in the rear end of peaking switch.
Above-mentioned enclosed design makes whole device less by such environmental effects.
Next, described in detail the assembling process of small-sized integrated steep pulse generating means by accompanying drawing.
(1) as shown in Figure 4, first multiple annular capacitor shields structure 4 first insulating part 3-1 and the second insulating part 3-2 are fixed into an entirety.
(2) as shown in Figure 5, multiple impulse capacitor 9 and multiple gas spark switch 8 are placed on the second insulating part 3-2 successively and are electrically connected, and multiple gas spark switch 8 is together in series by tracheae.
(3) as shown in Figure 6, resistance 5 is arranged in the both sides of the 3rd insulating part 3-3 with " Z " font, be electrically connected by the through hole 19 on the 3rd insulating part 3-3 between each resistance 5, and resistance 5 is connected with multiple impulse capacitor 9 by high-voltage conducting wires according to the circuit diagram shown in Fig. 3.
(4) as shown in Figure 7, insulating support 6-1 is connected with the first insulating part, and is finally fixed on the top of fuel tank.
Schematic diagram after final assembling as shown in Figure 2.
In an instantiation, impulse voltage generator can be suspended in fuel tank by 6 insulating support oblique pulls, adopts 5 grades of bilateral charge circuits, is realized the superposition of voltage by 10 small inductor pulsed capacitances and 5 gas spark switch.
Wherein, impulse capacitor can select the small inductor impulse capacitor of 100kV, 100 ~ 300nF; N can be filled in gas spark switch
2and SF
6, air pressure can be determined according to charging voltage.Annular capacitor shields structure is added around impulse voltage generator, its ring diameter and quantity can be chosen according to physical size, the voltage magnitude of the steep pulse produced can reach 1MV, rising edge can reach few tens of nano-seconds level, if coordinate intermediate energy storage oil line and peaking switch again, its rising edge can be less than 10ns.
In this instructions, each embodiment all adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, and part identical with similar between each embodiment can cross-reference.For device embodiment, due to itself and embodiment of the method basic simlarity, so description is fairly simple, relevant part can see the explanation of embodiment of the method part.
Oil immersed type impulse voltage generator in disclosure above-described embodiment adopts switched capacitor integral structure, adopt the mode of small inductor impulse capacitor and gas spark switch linear pattern, shorten loop length, reduce loop inductance, add the speed to subordinate's peaking switch conveying capacity, for the steep pulse realizing wave head extremely steep creates condition.Integrated small steep pulse generating means volume in disclosure embodiment is little, be convenient to transport, can conveniently in laboratory with on-the-spotly carry out different tests, such as, and the test such as 1000kVGIS insulator, 500kVGIS insulator, SF6 gap.
Although describe the disclosure with reference to exemplary embodiment, should be understood that the disclosure is not limited to above-mentioned exemplary embodiment.It will be obvious to those skilled in the art that and can revise above-mentioned exemplary embodiment under the condition not deviating from the scope of the present disclosure and spirit.The scope of appended claim should be endowed the widest explanation, to comprise all such amendments and equivalent 26S Proteasome Structure and Function.
Claims (7)
1. a small-sized integrated steep pulse generating means, is characterized in that, comprises fuel tank and is suspended to the oil immersed type impulse voltage generator of described fuel tank internal by insulating support oblique pull, wherein,
Described oil immersed type impulse voltage generator comprises:
Based on the impulse voltage generator loop that multiple impulse capacitor, multiple gas spark switch and multiple resistance are formed;
Multiple annular capacitor shields structure;
First insulating part;
Second insulating part; And
3rd insulating part;
Wherein,
Described multiple impulse capacitor and described multiple gas spark switch are alternately fixed on described second insulating part along same axis;
The described multiple annular capacitor shields structure of layout around described multiple impulse capacitor, and described multiple annular capacitor shields structure is fixed on described first insulating part;
Described multiple resistance is arranged on the pros and cons of described 3rd insulating part;
The described multiple resistance in described impulse voltage generator loop, the electrical connection between described multiple impulse capacitor and described multiple gas spark switch is realized by the through hole on hi-line and described 3rd insulating part;
Described 3rd insulating part is fixed on described second insulating part;
Described insulating support is connected with described first insulating part.
2. small-sized integrated steep pulse generating means according to claim 1, is characterized in that, described multiple gas spark switch adopts three electrode field distortion switch, is series in described impulse voltage generator loop by gas circuit.
3. small-sized integrated steep pulse generating means according to claim 1 and 2, is characterized in that, in described impulse voltage generator loop, from DC charging end, described multiple gas spark switch arranges from low to high according to himself voltage breakdown.
4. small-sized integrated steep pulse generating means according to claim 1, is characterized in that, the sparking voltage of each gas spark switch is by the gentle pressure-controlled of gaseous species in its place cavity.
5. small-sized integrated steep pulse generating means according to claim 1, is characterized in that, the surface of described insulating support is equidistant umbrella skirt construction.
6. small-sized integrated steep pulse generating means according to claim 5, is characterized in that, umbrella spacing is equal with full skirt thickness, and full skirt edge is fillet.
7. small-sized integrated steep pulse generating means according to claim 6, it is characterized in that, the number of full skirt thickness and umbrella is determined according to insulating requirements.
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| CN104113051B (en) * | 2014-07-07 | 2017-05-24 | 西北核技术研究所 | Energy transference system and method based on primary pulse source self coupling |
| CN104113187B (en) * | 2014-07-07 | 2017-01-04 | 西北核技术研究所 | Fast-response electric pulse based on the charging of primary pulse source triggers system and method |
| CN104459235B (en) * | 2014-12-09 | 2017-05-24 | 国家电网公司 | Compact closed gas insulation impulse voltage generation device |
| CN104483607B (en) * | 2014-12-19 | 2018-10-19 | 西安交通大学 | A kind of inflatable compact surge voltage generating means |
| CN104617918B (en) * | 2014-12-19 | 2017-06-30 | 西安交通大学 | A kind of totally-enclosed inflatable impulse voltage generator is installed and method for dismounting |
| CN104467512B (en) * | 2014-12-19 | 2017-06-23 | 西安交通大学 | A kind of surge voltage generating means |
| CN104699150B (en) * | 2015-03-09 | 2016-03-02 | 国家电网公司 | Closed compact impulse voltage generator waveform adjustment device |
| CN105044410A (en) * | 2015-08-27 | 2015-11-11 | 武汉华高高电压设备新技术有限公司 | Impulse voltage generator |
| CN105353279B (en) * | 2015-11-12 | 2021-04-30 | 中国电力科学研究院 | Self-supporting quick-mounting impulse voltage generator and mounting method thereof |
| CN106771418A (en) * | 2015-11-19 | 2017-05-31 | 中国电力科学研究院 | A kind of many ball electrode ignition devices of novel closed-type |
| CN107132385A (en) * | 2016-02-26 | 2017-09-05 | 扬州市鑫源电气有限公司 | A kind of tandem SF6 gas-insulateds surge voltage generating means |
| CN106932697A (en) * | 2017-04-19 | 2017-07-07 | 天津市电力科技发展有限公司 | GIS equipment partial discharge detection means under oscillation mode surge voltage |
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| CN201238269Y (en) * | 2008-03-10 | 2009-05-13 | 中国电力科学研究院 | Impulse voltage generator |
| CN101324651B (en) * | 2008-07-28 | 2011-01-12 | 青海电力科学试验研究院 | Mobile on-site impact pressure-proof test apparatus and method of 750 V voltage grading GIS equipment |
| CN102158116B (en) * | 2011-01-20 | 2013-02-06 | 西安交通大学 | Impulse voltage generator for triggering multi-channel discharge gas spark switch |
| CN102901917B (en) * | 2012-10-22 | 2015-04-01 | 云南电力试验研究院（集团）有限公司电力研究院 | Field generating device of steep pulses |
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