CN104377062A - Charging switch used for improving output efficiency of impulse voltage generator - Google Patents
Charging switch used for improving output efficiency of impulse voltage generator Download PDFInfo
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/26—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
- H01H2009/265—Interlocking, locking, or latching mechanisms for interlocking two or more switches with interlocking of more than two switches
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Abstract
本发明提供了一种用于提高冲击电压发生器输出效率的充电开关,包括固定支座,以及等间距设置在动力绝缘杆上的旋转导电杆,固定支座安装在冲击电压发生器每级充电端的支柱法兰上,设置固定电极;旋转导电杆中远离旋转电机和固定支座的一端上设置接触电极;若接触电极与固定电极连接,冲击电压发生器各级充电电压相等,消除了传统冲击电压发生器充电不均匀性;若接触电极与固定电极断开,冲击电压发生器各级断开,消除了传统冲击电压发生器充电电阻在放电过程中的能量损失。与现有技术相比,本发明提供的用于提高冲击电压发生器输出效率的充电开关,有效地实现冲击电压发生器充电和放电电路拓扑的切换,到达输出高效长波前操作冲击电压的目的。
The invention provides a charging switch for improving the output efficiency of an impulse voltage generator, which includes a fixed support and rotating conductive rods arranged at equal intervals on the dynamic insulating rod, and the fixed support is installed on each stage of the impulse voltage generator to charge The fixed electrode is set on the pillar flange at the end; the contact electrode is set on the end of the rotating conductive rod far away from the rotating motor and the fixed support; if the contact electrode is connected to the fixed electrode, the charging voltage of each level of the impulse voltage generator is equal, eliminating the traditional impact The charging of the voltage generator is uneven; if the contact electrode is disconnected from the fixed electrode, the impulse voltage generator is disconnected at all levels, which eliminates the energy loss of the traditional impulse voltage generator charging resistor during the discharge process. Compared with the prior art, the charging switch provided by the present invention for improving the output efficiency of the impulse voltage generator can effectively realize the switching of the charging and discharging circuit topology of the impulse voltage generator, and achieve the purpose of outputting the high-efficiency long-wavefront operation impulse voltage.
Description
技术领域technical field
本发明涉及一种充电开关,具体涉及一种用于提高冲击电压发生器输出效率的充电开关。The invention relates to a charging switch, in particular to a charging switch for improving the output efficiency of an impulse voltage generator.
背景技术Background technique
操作冲击绝缘强度是确定超/特高压输变电工程空气间隙尺寸的主要依据。由于输电线路电压等级的提升和线路长度的增加,线路操作过电压波前时间也逐渐加长,如1000kV特高压交流工程的操作过电压波前时间绝大部分为1000μs~2500μs。The operating impact dielectric strength is the main basis for determining the size of the air gap in EHV/UHV power transmission and transformation projects. Due to the improvement of the voltage level of the transmission line and the increase of the line length, the line operation overvoltage front time is also gradually lengthened. For example, the operation overvoltage front time of the 1000kV UHV AC project is mostly 1000μs-2500μs.
冲击电压发生器是研究空气间隙绝缘强度的关键试验装置,现有设备产生的操作冲击电压随着波前时间的加长,效率急剧下降。为了克服现有的特大型冲击电压发生器不能产生1500微秒以上波前时间冲击电压效率不够的问题,需要采用充电开关机构,在冲击电压输出过程中能量在充电电阻上的消耗,以提高输出效率。The impulse voltage generator is a key test device for studying the insulation strength of the air gap. The efficiency of the operating impulse voltage generated by the existing equipment decreases sharply as the wave front time increases. In order to overcome the problem that the existing extra-large impulse voltage generator cannot generate the impulse voltage with a wave front time of more than 1500 microseconds and the efficiency is not enough, it is necessary to use a charging switch mechanism to consume energy on the charging resistor during the impulse voltage output process to improve the output. efficiency.
传统冲击电压发生器在产生长波前操作冲击电压时,电容储存的能量部分将从充电电阻消耗,造成输出电压效率不高。为了提高输出效率,必须采用充电开关结构在波形形成过程中断开充电电阻。因此需要提供一种结构简单,开合可靠,能够安全有效实现冲击电压发生器充电和放电两个阶段电路拓扑的切换的充电开关。When a traditional impulse voltage generator generates a long-wavefront operating impulse voltage, the energy stored in the capacitor will be consumed by the charging resistor, resulting in low output voltage efficiency. In order to improve the output efficiency, it is necessary to adopt a charging switch structure to disconnect the charging resistor during the waveform formation. Therefore, it is necessary to provide a charging switch with simple structure, reliable opening and closing, and capable of safely and effectively switching the circuit topology of the charging and discharging stages of the impulse voltage generator.
发明内容Contents of the invention
为了满足现有技术的需要,本发明提供了一种用于提高冲击电压发生器输出效率的充电开关,所述充电开关包括N个固定支座,以及由下至上等间距设置在动力绝缘杆上的N个旋转导电杆,所述旋转导电杆均设置在一个平面上,N至少为20;所述固定支座安装在所述冲击电压发生器每级充电端的支柱法兰上,固定支座上设置有固定电极;In order to meet the needs of the prior art, the present invention provides a charging switch for improving the output efficiency of the impulse voltage generator, the charging switch includes N fixed supports, and is arranged on the power insulating rod at equal intervals from bottom to top N rotating conductive rods, the rotating conductive rods are all arranged on a plane, and N is at least 20; the fixed support is installed on the pillar flange of the charging end of each stage of the impulse voltage generator, fixed electrodes are provided;
所述动力绝缘杆最下端的旋转导电杆与旋转电机连接;所述动力绝缘杆由下至上的第2至N个旋转导电杆依次设置在所述固定支座与动力绝缘杆之间;所述旋转导电杆中远离旋转电机的一端,以及远离固定支座的一端上设置有接触电极;The rotating conductive rod at the bottom end of the dynamic insulating rod is connected to the rotating motor; the second to N rotating conductive rods of the dynamic insulating rod are sequentially arranged between the fixed support and the dynamic insulating rod; The end of the rotating conductive rod away from the rotating motor and the end away from the fixed support are provided with contact electrodes;
所述旋转电机转动后,若与旋转电机连接的旋转导电杆带动动力绝缘杆向上移动,通过接触电极与固定电极连接,N个旋转导电杆形成串联支路,实现冲击电压发生器充电时通路;若与旋转电机连接的旋转导电杆带动动力绝缘杆向下移动,接触电极与固定电极断开,实现冲击电压发生器放电时断路。After the rotating motor rotates, if the rotating conductive rod connected to the rotating motor drives the power insulating rod to move upwards, and is connected to the fixed electrode through the contact electrode, N rotating conductive rods form a series branch to realize the charging path of the impulse voltage generator; If the rotating conductive rod connected with the rotating motor drives the dynamic insulating rod to move downward, the contact electrode is disconnected from the fixed electrode, and the circuit is disconnected when the impulse voltage generator discharges.
优选的,所述动力绝缘杆最上端的旋转导电杆上侧的固定支座与动力绝缘杆之间设置有一个导向杆,所述导向杆与所述旋转导电杆的间距,以及N个旋转导电杆之间的间距相同;Preferably, a guide rod is provided between the fixed support on the upper side of the rotating conductive rod at the uppermost end of the dynamic insulating rod and the dynamic insulating rod, the distance between the guide rod and the rotating conductive rod, and the number of N rotating conductive rods the same distance between
所述导向杆与旋转导电杆设置在一个平面上;The guide rod and the rotating conductive rod are arranged on a plane;
优选的,所述固定支座上设置有固定电极,用于在动力绝缘杆向上移动时与动力绝缘杆最上端的旋转导电杆的接触电极连接;Preferably, the fixed support is provided with a fixed electrode, which is used to connect with the contact electrode of the rotating conductive rod at the uppermost end of the dynamic insulating rod when the dynamic insulating rod moves upward;
优选的,所述动力绝缘杆的最上端设置有一个导向轨道;当动力绝缘杆向上移动和向下移动时,导向杆在所述导向轨道内滑动;Preferably, a guide rail is provided at the uppermost end of the dynamic insulating rod; when the dynamic insulating rod moves up and down, the guide rod slides in the guide rail;
优选的,所述导向轨道为绝缘的弧形轨道;Preferably, the guide track is an insulated arc track;
优选的,当所述接触电极与固定电极断开时,调整所述旋转电机逆时针旋转90°,与旋转电机连接的旋转导电杆由水平位置旋转为竖直位置,从而带动动力绝缘杆向上移动,每个旋转导电杆的接触电极与其上侧的旋转导电杆的固定电极连接形成串联支路;Preferably, when the contact electrode is disconnected from the fixed electrode, the rotating motor is adjusted to rotate 90° counterclockwise, and the rotating conductive rod connected to the rotating motor rotates from a horizontal position to a vertical position, thereby driving the dynamic insulating rod to move upward , the contact electrode of each rotating conductive rod is connected to the fixed electrode of the rotating conductive rod on its upper side to form a series branch;
优选的,当所述接触电极与固定电极连接时,调整所述传动电极顺时针旋转90°,与旋转电机连接的旋转导电杆由竖直位置旋转为水平位置,从而带动动力绝缘杆向下移动,每个旋转导电杆的接触电极与其上侧的旋转导电杆的固定电极断开,实现冲击电压发生器放电时断路。Preferably, when the contact electrode is connected to the fixed electrode, the transmission electrode is adjusted to rotate clockwise by 90°, and the rotating conductive rod connected to the rotating motor rotates from a vertical position to a horizontal position, thereby driving the power insulating rod to move downward , the contact electrode of each rotating conductive rod is disconnected from the fixed electrode of the rotating conductive rod on its upper side, so as to realize the disconnection when the impulse voltage generator discharges.
与最接近的现有技术相比,本发明的优异效果是:Compared with the closest prior art, the excellent effect of the present invention is:
1、本发明提供的一种用于提高冲击电压发生器输出效率的充电开关实现简单,开合可靠,可实现高电压、长行程、20级以上多个开关联动开合,能够安全有效地实现冲击电压发生器充电和放电两个阶段电路拓扑的切换,到达输出高效长波前操作冲击电压的目的;1. The charging switch for improving the output efficiency of the impulse voltage generator provided by the present invention is simple to implement, reliable to open and close, and can realize high voltage, long stroke, and multiple switch linkage opening and closing above 20 levels, which can be realized safely and effectively The switching of the circuit topology of the charging and discharging stages of the impulse voltage generator achieves the purpose of outputting high-efficiency long wavefront operation impulse voltage;
2、传统冲击电压发生器两级之间的充电电阻在充电时引起各级的充电电压不一致,导致充电不均匀;在放电时部分能量从充电电阻上消耗,降低放电效率。本发明提供的充电开关能够取代充电电阻作用,在充电时不改变冲击电压发生器各级的充电电压,放电时又能切断支路,不消耗能量。2. The charging resistance between the two stages of the traditional impulse voltage generator causes the charging voltage of each level to be inconsistent during charging, resulting in uneven charging; when discharging, part of the energy is consumed from the charging resistor, reducing the discharge efficiency. The charging switch provided by the invention can replace the charging resistor, does not change the charging voltage of each stage of the impulse voltage generator during charging, and can cut off the branch circuit during discharging without consuming energy.
附图说明Description of drawings
下面结合附图对本发明进一步说明。The present invention will be further described below in conjunction with the accompanying drawings.
图1:本发明实施例中一种用于提高冲击电压发生器输出效率的充电开关断开示意图;Figure 1: A schematic diagram of disconnection of a charging switch for improving the output efficiency of an impulse voltage generator in an embodiment of the present invention;
图2:本发明实施例中一种用于提高冲击电压发生器输出效率的充电开关闭合示意图;Figure 2: A schematic diagram of a charging switch closure for improving the output efficiency of an impulse voltage generator in an embodiment of the present invention;
其中,1-旋转电机;2-固定电极;3-固定支座;4-旋转导电杆;5-接触电极;6-动力绝缘杆;7-导向杆;8-导向轨道。Among them, 1-rotating motor; 2-fixed electrode; 3-fixed support; 4-rotating conductive rod; 5-contact electrode; 6-power insulating rod; 7-guiding rod; 8-guiding track.
具体实施方式Detailed ways
下面详细描述本发明的实施例,所述实施例的示例在附图中示出,其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的,旨在用于解释本发明,而不能理解为对本发明的限制。Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
本发明提供的一种用于提高冲击电压发生器输出效率的充电开关,在冲击电压发生器充电时开关闭合,接通充电电阻,实现20级以上电路单元的顺利充电;在冲击电压发生器放电时,断开充电电阻,消除电容储存的部分能量从充电电阻的消耗,提高输出效率。The invention provides a charging switch for improving the output efficiency of the impulse voltage generator. When the impulse voltage generator is charging, the switch is closed, and the charging resistor is connected to realize the smooth charging of circuit units above 20 levels; when the impulse voltage generator discharges At this time, the charging resistor is disconnected to eliminate part of the energy stored in the capacitor from being consumed by the charging resistor and improve the output efficiency.
如图1和2所示,本实施例中一种用于提高冲击电压发生器输出效率的充电开关包括N个固定支座3,以及由下至上等间距设置在动力绝缘杆上的N个旋转导电杆4,所述的旋转导电杆4均设置在一个平面上,N至少为20;固定支座3安装在冲击电压发生器每级充电端的支柱法兰上,固定支座3上设置有固定电极2;As shown in Figures 1 and 2, a charging switch for improving the output efficiency of the impulse voltage generator in this embodiment includes N fixed supports 3, and N rotating supports 3 arranged at equal intervals from bottom to top on the power insulating rod. The conductive rods 4, the rotating conductive rods 4 are all arranged on a plane, and N is at least 20; the fixed support 3 is installed on the pillar flange of the charging end of each stage of the impulse voltage generator, and the fixed support 3 is provided with a fixed electrode 2;
动力绝缘杆6最下端的旋转导电杆4与旋转电机1连接,旋转电机1与旋转导电杆4绝缘,不接入冲击电压发生器的电路中;动力绝缘杆6由下至上的第2至N个旋转导电杆4依次设置在固定支座3与动力绝缘杆6之间;旋转导电杆4中远离旋转电机1的一端,以及远离固定支座3的一端上设置有接触电极5。The rotating conductive rod 4 at the bottom of the power insulating rod 6 is connected to the rotating motor 1, and the rotating motor 1 is insulated from the rotating conductive rod 4, and is not connected to the circuit of the impulse voltage generator; the second to the N Two rotating conductive rods 4 are sequentially arranged between the fixed support 3 and the power insulating rod 6; one end of the rotating conductive rod 4 away from the rotating motor 1 and one end far away from the fixed support 3 are provided with a contact electrode 5 .
旋转电机1转动后,如图2所示若与旋转电机1连接的旋转导电杆4带动动力绝缘杆6向上移动,通过接触电极5与固定电极2连接,N个旋转导电杆4形成串联支路,以实现冲击电压发生器充电时通路以进行充电;如图1所示若与旋转电机1连接的旋转导电杆4带动动力绝缘杆6向下移动,接触电极5与固定电极2断开,以实现冲击电压发生器放电时断路以进行放电。After the rotating electrical machine 1 rotates, as shown in Figure 2, if the rotating conductive rod 4 connected to the rotating electrical machine 1 drives the dynamic insulating rod 6 to move upward, and is connected to the fixed electrode 2 through the contact electrode 5, N rotating conductive rods 4 form a series branch , so as to realize the path for charging when the impulse voltage generator is charged; as shown in Figure 1, if the rotating conductive rod 4 connected to the rotating electrical machine 1 drives the power insulating rod 6 to move downward, the contact electrode 5 is disconnected from the fixed electrode 2, so as to When the discharge of the impulse voltage generator is realized, the circuit is disconnected for discharge.
1、导向杆1. Guide rod
动力绝缘杆6最上端的旋转导电杆4上侧的固定支座3与动力绝缘杆6之间设置有一个导向杆7,导向杆7与旋转导电杆4的间距,以及N个旋转导电杆4之间的间距相同;导向杆7与旋转导电杆4设置在一个平面上。A guide rod 7 is arranged between the fixed support 3 on the upper side of the rotating conductive rod 4 at the uppermost end of the dynamic insulating rod 6 and the dynamic insulating rod 6, the distance between the guiding rod 7 and the rotating conductive rod 4, and the distance between the N rotating conductive rods 4 The spacing between them is the same; the guide rod 7 and the rotating conductive rod 4 are arranged on a plane.
上述固定支座3设置有固定电极2,用于在动力绝缘杆6向上移动时与动力绝缘杆6最上端的旋转导电杆4的接触电极5连接。The fixed support 3 is provided with a fixed electrode 2 for connecting with the contact electrode 5 of the rotating conductive rod 4 at the uppermost end of the dynamic insulating rod 6 when the dynamic insulating rod 6 moves upward.
动力绝缘杆6的最上端设置有一个导向轨道8;当动力绝缘杆6向上移动或者向下移动时,导向杆7在导向轨道8内滑动,导向轨道为绝缘的弧形轨道。The uppermost end of the power insulation rod 6 is provided with a guide rail 8; when the power insulation rod 6 moves up or down, the guide rod 7 slides in the guide rail 8, and the guide rail is an insulating arc track.
2、充电开关工作过程:2. Working process of charging switch:
(1)冲击电压发生器充电,充电开关由断开到闭合;(1) The impulse voltage generator is charged, and the charging switch is turned from open to closed;
旋转电机逆时针旋转带动旋转导电杆旋转到90°时,旋转导电杆端部的接触电极接触到固定电极,如图2所示,开关连通。同时,旋转导电杆带动动力绝缘杆向上方移动,动力绝缘杆将第一级旋转导电杆的动作传递给上面的多个旋转导电杆,实现开关多级联动。When the rotating motor rotates counterclockwise to drive the rotating conductive rod to rotate to 90°, the contact electrode at the end of the rotating conductive rod touches the fixed electrode, as shown in Figure 2, the switch is connected. At the same time, the rotating conductive rod drives the power insulating rod to move upwards, and the power insulating rod transmits the action of the first-stage rotating conductive rod to the upper rotating conductive rods to realize multi-stage linkage of switches.
具体为:此时接触电极5与固定电极2断开时,调整旋转电机1逆时针旋转90°,与旋转电机1连接的旋转导电杆4由水平位置旋转为竖直位置,从而带动动力绝缘杆6向上移动,每个旋转导电杆4的接触电极5与其上侧的旋转导电杆4的固定电极2连接形成串联支路,如图2所示。Specifically: when the contact electrode 5 is disconnected from the fixed electrode 2 at this time, adjust the rotating motor 1 to rotate counterclockwise 90°, and the rotating conductive rod 4 connected to the rotating motor 1 rotates from a horizontal position to a vertical position, thereby driving the power insulating rod 6 moves upward, and the contact electrode 5 of each rotating conductive rod 4 is connected with the fixed electrode 2 of the rotating conductive rod 4 on the upper side to form a series branch, as shown in FIG. 2 .
(2)冲击电压发生器放电,充电开关由闭合到断开;(2) The impulse voltage generator discharges, and the charging switch changes from closed to open;
旋转电机顺时针旋转带动旋转导电杆旋转到0°时,旋转导电杆端部的接触电极与固定电极分开移动到水平位置。动力绝缘杆在旋转导电杆的带动下向下移动,同时带动上级的旋转导电杆转动,各级的接触电极和固定电极分开,开关多级联动分开。When the rotating motor rotates clockwise to drive the rotating conductive rod to rotate to 0°, the contact electrode at the end of the rotating conductive rod is separated from the fixed electrode and moves to a horizontal position. Driven by the rotating conductive rod, the dynamic insulating rod moves downward, and at the same time drives the rotating conductive rod of the upper level to rotate, the contact electrodes of each level are separated from the fixed electrodes, and the multi-stage linkage of the switch is separated.
具体为:此时接触电极5与固定电极2连接时,调整传动电极1顺时针旋转90°,与旋转电机1连接的旋转导电杆4由竖直位置旋转为水平位置,从而带动动力绝缘杆6向下移动,每个旋转导电杆4的接触电极5与其上侧的旋转导电杆4的固定电极2断开,以实现冲击电压发生器放电。Specifically: when the contact electrode 5 is connected to the fixed electrode 2 at this time, adjust the transmission electrode 1 to rotate clockwise by 90°, and the rotating conductive rod 4 connected to the rotating motor 1 rotates from a vertical position to a horizontal position, thereby driving the power insulating rod 6 Moving downward, the contact electrode 5 of each rotating conductive rod 4 is disconnected from the fixed electrode 2 of the rotating conductive rod 4 on its upper side, so as to realize the discharge of the impulse voltage generator.
最后应当说明的是:所描述的实施例仅是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。Finally, it should be noted that the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.
Claims (7)
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CN106154859A (en) * | 2016-08-22 | 2016-11-23 | 合肥若涵信智能工程有限公司 | Internet of things intelligent household switch automatically |
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