CN111799075A - Double-resistor transition circuit of vacuum on-load tap-changer and voltage regulation method - Google Patents
Double-resistor transition circuit of vacuum on-load tap-changer and voltage regulation method Download PDFInfo
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Abstract
本发明公开了一种真空有载分接开关双电阻过渡电路及调压方法，所述过渡电路包括：第一主触头MC1、第二主触头MC2、第一辅助真空触头V1、第二辅助真空触头V3、主真空触头V2、第一开关Z1、第二开关Z2、第一过渡电阻R1和第二过渡电阻R2；本发明设计了两条辅助真空触头支路，环流切断任务由两个辅助真空触头轮流担任，切换程序对称，使得两个辅助真空触头的烧损完全一致，相比目前“单主真空触头、单辅助真空触头”结构的过渡电路，能够平衡主真空触头和辅助真空触头的切换容量；同时设计了两只过渡电阻轮换工作，以解决由于单过渡电阻发热，使得过渡电阻温度过高导致变压器油分解产气和绝缘性能降低的问题，提高了整台真空有载分接开关的电气寿命。
The invention discloses a double-resistance transition circuit of a vacuum on-load tap-changer and a voltage regulation method. The transition circuit comprises: a first main contact MC1, a second main contact MC2, a first auxiliary vacuum contact V1, a first main contact Two auxiliary vacuum contacts V3, main vacuum contacts V2, first switch Z1, second switch Z2, first transition resistance R1 and second transition resistance R2; the present invention designs two auxiliary vacuum contact branches to cut off the circulating current The task is performed by two auxiliary vacuum contacts in turn, and the switching procedure is symmetrical, so that the burning loss of the two auxiliary vacuum contacts is completely consistent. Balance the switching capacity of the main vacuum contact and the auxiliary vacuum contact; at the same time, two transition resistances are designed to work alternately to solve the problem that the temperature of the transition resistance is too high due to the heating of the single transition resistance, which leads to the decomposition of transformer oil and gas production and the reduction of insulation performance. , to improve the electrical life of the entire vacuum on-load tap-changer.
Description
技术领域technical field
本发明涉及变压器技术领域，并且更具体地，涉及一种真空有载分接开关双电阻过渡电路及调压方法。The present invention relates to the technical field of transformers, and more particularly, to a double-resistance transition circuit of a vacuum on-load tap-changer and a voltage regulation method.
背景技术Background technique
有载分接开关，是一种为变压器在负载变化时提供恒定电压的开关装置。其基本原理是在保证不中断负载电流的情况下，实现变压器绕组中分接头之间的切换，从而改变绕组的匝数，即变压器的电压比，最终实现调压的目的。目前在整流、冶炼、铁路牵引的变压器所配置的有载分接开关大都是快速电阻切换，靠弧触头系统在电流过零点时把电弧熄灭的原理进行工作的。这种切换原理特别对于变压器工作切换频繁的分接开关的触头烧损比较严重，开关的故障率较高，油的碳化速度快，由此给供电部门增加了日常维护量。真空式有载分接开关，主要靠切换开关的真空管来实现电弧熄灭，电弧和炽热气体不外露；分接开关油室内的油不会碳化和污染，油不需要净化；真空管中触头的烧损腐蚀可以降到最低限度。有载分接开关主要由切换开关、转换选择器和电动机构构成。The on-load tap-changer is a switching device that provides a constant voltage to the transformer when the load changes. The basic principle is to realize the switching between the taps in the transformer winding under the condition of ensuring that the load current is not interrupted, so as to change the number of turns of the winding, that is, the voltage ratio of the transformer, and finally achieve the purpose of voltage regulation. At present, most of the on-load tap-changers configured in the transformers of rectification, smelting, and railway traction are fast resistance switching, and work by the principle of arc contact system to extinguish the arc when the current crosses the zero point. This switching principle is especially for the tap changer with frequent transformer operation and switching, the contact burn is more serious, the failure rate of the switch is high, and the carbonization speed of the oil is fast, which increases the daily maintenance for the power supply department. The vacuum type on-load tap-changer mainly relies on the vacuum tube of the switch to achieve arc extinguishing, and the arc and hot gas are not exposed; the oil in the oil chamber of the tap-changer will not be carbonized and polluted, and the oil does not need to be purified; the burning of the contacts in the vacuum tube Corrosion damage can be minimized. The on-load tap-changer is mainly composed of a change-over switch, a change-over selector and an electric mechanism.
有载分接开关带负载切换，需要有过渡电路和选择电路，不同的调压方式要求有不同的调压电路，因此，有载分接开关的电路由过渡电路、选择电路和调压电路三部分组成。过渡电路是跨接于分接点间的串接电阻电路，与其对应的机构为切换开关或选择开关，它是带电状态下变换变压器绕组的分接头。分接开关采用过渡电路的原理实现分接变换操作。按其过渡电路电阻的数目有单电阻、双电阻、四电阻或多电阻过度，按其触头断口有单断口、双断口等，可组合构成各式各样的过渡电路。过渡电路和切换程序对切换开关的触头任务有着不同影响，电弧能否限制最初半周内可靠熄灭，很大程度上取决于所需要的切换任务。The on-load tap-changer has a load switching, which requires a transition circuit and a selection circuit. Different voltage regulation methods require different voltage regulation circuits. Therefore, the circuit of the on-load tap-changer consists of a transition circuit, a selection circuit and a voltage regulation circuit. part composition. The transition circuit is a series resistance circuit connected across the tap points, and its corresponding mechanism is a switch or a selector switch, which is a tap for transforming the transformer windings in a charged state. The tap changer adopts the principle of transition circuit to realize the tap change operation. According to the number of transition circuit resistances, there are single resistance, double resistance, four resistances or multiple resistances, and according to the contact fracture, there are single fracture, double fracture, etc., which can be combined to form various transition circuits. The transition circuit and switching procedure have different effects on the contact task of the diverter switch. Whether the arc can limit the reliable extinguishing of the first half cycle depends to a large extent on the required switching task.
有载分接开关中不接过渡电阻的电弧触头为主通断触头，其只承受开断负载电流的任务；接有过渡电阻的电弧触头为辅助触头，其只承受开断内部环流的任务。根据特高压直流工程经验，换流变负载电流单柱绕组一般为500～600A，过渡电阻R上流过的内部环流约为900～1000A，由于经过辅助真空触头上的内部环流明显大于负载电流，因此在多次切换以后，主真空触头和辅助真空触头的烧蚀程度会出现的不同，辅助真空触头的切换负担和电气损伤会更严重。In the on-load tap-changer, the arc contact without the transition resistance is the main on-off contact, which only bears the task of breaking the load current; the arc contact with the transition resistance is the auxiliary contact, which only withstands the breaking of the internal Circulation tasks. According to the experience of UHV DC engineering, the single-column winding of the commutation variable load current is generally 500-600A, and the internal circulating current flowing through the transition resistance R is about 900-1000A. Since the internal circulating current passing through the auxiliary vacuum contact is obviously larger than the load current, Therefore, after multiple switching, the degree of ablation of the main vacuum contact and the auxiliary vacuum contact will be different, and the switching burden and electrical damage of the auxiliary vacuum contact will be more serious.
因此，需要提供一种可减轻辅助真空触头切换任务，提高有载分接开关的电气寿命的过渡电路。Therefore, there is a need to provide a transition circuit that can alleviate the switching task of the auxiliary vacuum contacts and improve the electrical life of the on-load tap-changer.
发明内容SUMMARY OF THE INVENTION
本发明提出了一种真空有载分接开关双电阻过渡电路及调压方法，以解决如何提高真空有载分接开关的电气寿命的问题。The invention proposes a double-resistance transition circuit and a voltage regulation method for a vacuum on-load tap changer, so as to solve the problem of how to improve the electrical life of the vacuum on-load tap changer.
为了解决上述问题，根据本发明的一个方面，提供了一种真空有载分接开关双电阻过渡电路，所述过渡电路包括：第一主触头MC1、第二主触头MC2、第一辅助真空触头V1、第二辅助真空触头V3、主真空触头V2、第一开关Z1、第二开关Z2、第一过渡电阻R1和第二过渡电阻R2；In order to solve the above problems, according to an aspect of the present invention, a double-resistance transition circuit for a vacuum on-load tap-changer is provided, and the transition circuit includes: a first main contact MC1, a second main contact MC2, a first auxiliary contact Vacuum contact V1, second auxiliary vacuum contact V3, main vacuum contact V2, first switch Z1, second switch Z2, first transition resistance R1 and second transition resistance R2;
其中，所述第一主触头MC1的一端与变压器调压绕组的奇数分接档位相连接；第二主触头MC2的一端与变压器调压绕组的偶数分接档位相连接；所述第一辅助真空触头V1的一端分别与变压器调压绕组的奇数分接档位和第一开关Z1相连接，另一端与所述第一过渡电阻R1的一端相连接；所述第二辅助真空触头V3的一端分别与变压器调压绕组的偶数分接档位和第一开关Z1相连接，另一端与所述第二过渡电阻R2的一端相连接；所述第一过渡电阻R1和第二过渡电阻R2的另一端均与所述第二开关Z2相连接；所述主真空触头V2的一端与第一开关Z1相连接；所述主真空触头V2、第一主触头MC1和第二主触头MC2的另一端均与变压器中性点相连接，用于输出负载电流；Wherein, one end of the first main contact MC1 is connected with the odd-numbered tap positions of the voltage regulating winding of the transformer; one end of the second main contact MC2 is connected with the even-numbered tap positions of the voltage regulating winding of the transformer; the said One end of the first auxiliary vacuum contact V1 is respectively connected with the odd tap position of the voltage regulating winding of the transformer and the first switch Z1, and the other end is connected with one end of the first transition resistor R1; the second auxiliary vacuum One end of the contact V3 is respectively connected with the even tap position of the voltage regulating winding of the transformer and the first switch Z1, and the other end is connected with one end of the second transition resistance R2; the first transition resistance R1 and the second transition resistance R1 The other end of the transition resistor R2 is connected to the second switch Z2; one end of the main vacuum contact V2 is connected to the first switch Z1; the main vacuum contact V2, the first main contact MC1 and the first The other ends of the two main contacts MC2 are connected to the neutral point of the transformer for outputting load current;
在进行环流切断任务时，通过第一辅助真空触头V1、第二辅助真空触头V3、第一过渡电阻R1和第二过渡电阻R2轮流工作，以减轻辅助真空触头的切换任务，降低过渡电阻的发热，提高有载分接开关的电气寿命。When the circulating current is cut off, the first auxiliary vacuum contact V1, the second auxiliary vacuum contact V3, the first transition resistance R1 and the second transition resistance R2 work in turn to reduce the switching task of the auxiliary vacuum contact and reduce the transition The heating of the resistance increases the electrical life of the on-load tap-changer.
优选地，其中当第一主触头MC1、第一辅助真空触头V1、第二辅助真空触头V3和主真空触头V2均处于导通状态，第一开关Z1与变压器绕组的奇数分接档位端导通，第二开关Z2与第一过渡电阻R1端导通，第二主触头MC2处于断开状态，有载分接开关的分接选择器与变压器调压绕组的奇数分接档位相连接时，能够使负载电流经所述第一主触头MC1输出。Preferably, when the first main contact MC1, the first auxiliary vacuum contact V1, the second auxiliary vacuum contact V3 and the main vacuum contact V2 are all in a conducting state, the first switch Z1 is connected to the odd-numbered taps of the transformer windings. The gear end is turned on, the second switch Z2 and the first transition resistance R1 end are turned on, the second main contact MC2 is in the off state, the tap selector of the on-load tap-changer is connected with the odd-numbered taps of the voltage regulating winding of the transformer When the gears are connected, the load current can be output through the first main contact MC1.
优选地，其中当第二主触头MC2、第一辅助真空触头V1、第二辅助主真空触头V2和主第二辅助真空触头V3均处于导通状态，第一开关Z1与变压器绕组的偶数分接档位端导通，第二开关Z2与第二过渡电阻R2端导通，第一主触头MC1处于断开状态，有载分接开关的分接选择器与变压器调压绕组的偶数分接档位相连接时，能够使负载电流经所述第二主触头MC2输出。Preferably, when the second main contact MC2, the first auxiliary vacuum contact V1, the second auxiliary main vacuum contact V2 and the main second auxiliary vacuum contact V3 are all in a conducting state, the first switch Z1 is connected to the transformer winding. The even-numbered tap gear end of the OLTC is turned on, the second switch Z2 and the second transition resistor R2 end are turned on, the first main contact MC1 is in the off state, the tap selector of the on-load tap-changer is connected to the voltage regulating winding of the transformer When the even-numbered tap positions are connected, the load current can be output through the second main contact MC2.
优选地，其中所述利用如下方式实现有载分接开关的分接选择器由奇数分接档位转换到偶数分接档位，包括：Preferably, wherein the tap selector of the on-load tap-changer is converted from the odd-numbered tap gear position to the even-numbered tap gear position by using the following methods, including:
断开所述第一主触头MC1，负载电流IN从奇数分接档位端依次流经第一开关Z1和主真空触头V2输出；The first main contact MC1 is disconnected, and the load current IN flows through the first switch Z1 and the main vacuum contact V2 in sequence from the odd - numbered tap gear end for output;
断开所述主真空触头V2，产生电弧；在所述主真空触头V2内电弧完全熄灭后，调整第一开关Z1，使得主真空触头V2与偶数分接档位端导通，此过程中负载电流IN依次流经第一辅助真空触头V1、第一过渡电阻R1和第二开关Z2输出；Disconnect the main vacuum contact V2 to generate an arc; after the arc in the main vacuum contact V2 is completely extinguished, adjust the first switch Z1 so that the main vacuum contact V2 is connected to the even-numbered tap gear end. During the process, the load current I N flows through the first auxiliary vacuum contact V1, the first transition resistance R1 and the second switch Z2 in sequence for output;
闭合所述主真空触头V2，过渡电路形成桥接，负载电流IN从偶数数分接档位端依次流经第一开关Z1和主真空触头V2输出；Closing the main vacuum contact V2, the transition circuit forms a bridge connection, and the load current I N flows through the first switch Z1 and the main vacuum contact V2 from the even-numbered tap gear end in turn for output;
断开所述第一辅助真空触头V1，产生电弧；在第一辅助真空触头V1内电弧完全熄灭后，调整第二开关Z2与所述第一过渡电阻R1断开，此过程中负载电流IN从偶数分接档位端依次流经第一开关Z1和主真空触头V2输出；Disconnect the first auxiliary vacuum contact V1 to generate an arc; after the arc in the first auxiliary vacuum contact V1 is completely extinguished, adjust the second switch Z2 to disconnect from the first transition resistance R1, during this process the load current I N flows through the first switch Z1 and the main vacuum contact V2 in sequence from the even-numbered tap gear end;
闭合所述第一辅助真空触头V1，调整第二开关Z2，使得主真空触头V2与第二过渡电阻R2端导通，负载电流IN从偶数分接档位端依次流经第一开关Z1和主真空触头V2输出；Close the first auxiliary vacuum contact V1, adjust the second switch Z2, so that the main vacuum contact V2 and the second transition resistor R2 are connected, and the load current I N flows through the first switch from the even-numbered tap gear end in turn Z1 and main vacuum contact V2 output;
闭合所述第二主触头MC2，使得负载电流IN流经第二主触头MC2输出，分接变换操作结束，完成一级调压。The second main contact MC2 is closed, so that the load current IN flows through the second main contact MC2 for output, the tap change operation is completed, and the first - stage voltage regulation is completed.
优选地，其中所述利用如下方式实现有载分接开关的分接选择器由偶数分接档位转换到奇数分接档位，包括：Preferably, wherein the tap selector of the on-load tap-changer is converted from the even-numbered tap gear position to the odd-numbered tap gear position by using the following methods, including:
断开所述第二主触头MC2，负载电流IN从偶数分接档位端依次流经第一开关Z1和主真空触头V2输出；The second main contact MC2 is disconnected, and the load current I N flows through the first switch Z1 and the main vacuum contact V2 from the even-numbered tap gear end in turn for output;
断开所述主真空触头V2，产生电弧；在所述主真空触头V2内电弧完全熄灭后，调整第一开关Z1，使得主真空触头V2与奇数分接档位端导通，此过程中负载电流IN依次流经第二辅助真空触头V3、第二过渡电阻R2和第二开关Z2输出；Disconnect the main vacuum contact V2 to generate an arc; after the arc in the main vacuum contact V2 is completely extinguished, adjust the first switch Z1 so that the main vacuum contact V2 is connected to the odd-numbered tap gear end. During the process, the load current I N flows through the second auxiliary vacuum contact V3, the second transition resistance R2 and the second switch Z2 in sequence for output;
闭合所述主真空触头V2，过渡电路形成桥接，负载电流IN从奇数分接档位端流经第一开关Z1和主真空触头V2输出；Closing the main vacuum contact V2, the transition circuit forms a bridge connection, and the load current I N flows from the odd tap gear end through the first switch Z1 and the main vacuum contact V2 for output;
断开所述第二辅助真空触头V3，产生电弧；在所述第二辅助真空触头V3内电弧完全熄灭后，调整第二开关Z2与所述第二过渡电阻R2断开，此过程中负载电流IN从奇数分接档位端依次流经第一开关Z1和主真空触头V2输出；Disconnect the second auxiliary vacuum contact V3 to generate an arc; after the arc in the second auxiliary vacuum contact V3 is completely extinguished, adjust the second switch Z2 to disconnect the second transition resistance R2, during this process The load current I N flows through the first switch Z1 and the main vacuum contact V2 in sequence from the odd-numbered tap gear end for output;
闭合所述第二辅助真空触头V3，调整第二开关Z2，使得主真空触头V2与第一过渡电阻R1端导通，负载电流IN从奇数分接档位端依次流经第一开关Z1和主真空触头V2输出；The second auxiliary vacuum contact V3 is closed, and the second switch Z2 is adjusted so that the main vacuum contact V2 and the first transition resistance R1 end are connected, and the load current I N flows through the first switch in sequence from the odd-numbered tap gear end. Z1 and main vacuum contact V2 output;
闭合所述第一主触头MC1，负载电流IN流经第一主触头MC1输出，分接变换操作结束，完成一级调压。The first main contact MC1 is closed, the load current I N flows through the first main contact MC1 for output, the tap change operation ends, and the first-stage voltage regulation is completed.
优选地，其中所述第一开关Z1为机械单触头开关或转换开关；所述第二开关Z2为机械单触头开关或转换开关。Preferably, the first switch Z1 is a mechanical single-contact switch or a transfer switch; the second switch Z2 is a mechanical single-contact switch or a transfer switch.
根据本发明的另一个方面，提供了一种利用如上所述的真空有载分接开关双电阻过渡电路进行调压的方法，所述方法包括：According to another aspect of the present invention, there is provided a method for voltage regulation using the above-mentioned double-resistance transition circuit of a vacuum on-load tap-changer, the method comprising:
断开所述第一主触头MC1，负载电流IN从奇数分接档位端依次流经第一开关Z1和主真空触头V2输出；The first main contact MC1 is disconnected, and the load current IN flows through the first switch Z1 and the main vacuum contact V2 in sequence from the odd - numbered tap gear end for output;
断开所述主真空触头V2，产生电弧；在所述主真空触头V2内电弧完全熄灭后，调整第一开关Z1，使得主真空触头V2与偶数分接档位端导通，此过程中负载电流IN依次流经第一辅助真空触头V1、第一过渡电阻R1和第二开关Z2输出；Disconnect the main vacuum contact V2 to generate an arc; after the arc in the main vacuum contact V2 is completely extinguished, adjust the first switch Z1 so that the main vacuum contact V2 is connected to the even-numbered tap gear end. During the process, the load current I N flows through the first auxiliary vacuum contact V1, the first transition resistance R1 and the second switch Z2 in sequence for output;
闭合所述主真空触头V2，过渡电路形成桥接，负载电流IN从偶数分接档位端依次流经第一开关Z1和主真空触头V2输出；Closing the main vacuum contact V2, the transition circuit forms a bridge connection, and the load current I N flows through the first switch Z1 and the main vacuum contact V2 from the even-numbered tap gear end in turn for output;
断开所述第一辅助真空触头V1，产生电弧；在第一辅助真空触头V1内电弧完全熄灭后，调整第二开关Z2与所述第一过渡电阻R1断开，此过程中负载电流IN从偶数分接档位端依次流经第一开关Z1和主真空触头V2输出；Disconnect the first auxiliary vacuum contact V1 to generate an arc; after the arc in the first auxiliary vacuum contact V1 is completely extinguished, adjust the second switch Z2 to disconnect from the first transition resistance R1, during this process the load current I N flows through the first switch Z1 and the main vacuum contact V2 in sequence from the even-numbered tap gear end;
闭合所述第一辅助真空触头V1，调整第二开关Z2，使得主真空触头V2与第二过渡电阻R2端导通，负载电流IN从偶数分接档位端依次流经第一开关Z1和主真空触头V2输出；Close the first auxiliary vacuum contact V1, adjust the second switch Z2, so that the main vacuum contact V2 and the second transition resistor R2 are connected, and the load current I N flows through the first switch from the even-numbered tap gear end in turn Z1 and main vacuum contact V2 output;
闭合所述第二主触头MC2，使得负载电流IN流经第二主触头MC2输出，分接变换操作结束，实现有载分接开关的分接选择器由奇数分接档位转换到偶数分接档位，完成一级调压。Close the second main contact MC2, so that the load current I N flows through the second main contact MC2 output, the tap change operation is completed, and the tap selector of the on-load tap changer is converted from the odd tap position to Even-numbered tap gears complete the first-level pressure regulation.
根据本发明的另一个方面，提供了一种利用如上所述的真空有载分接开关双电阻过渡电路进行调压的方法，所述方法包括：According to another aspect of the present invention, there is provided a method for voltage regulation using the above-mentioned double-resistance transition circuit of a vacuum on-load tap-changer, the method comprising:
断开所述第二主触头MC2，负载电流IN从偶数分接档位端依次流经第一开关Z1和主真空触头V2输出；The second main contact MC2 is disconnected, and the load current I N flows through the first switch Z1 and the main vacuum contact V2 from the even-numbered tap gear end in turn for output;
断开所述主真空触头V2，产生电弧；在所述主真空触头V2内电弧完全熄灭后，调整第一开关Z1，使得主真空触头V2与奇数分接档位端导通，此过程中负载电流IN依次流经第二辅助真空触头V3、第二过渡电阻R2和第二开关Z2输出；Disconnect the main vacuum contact V2 to generate an arc; after the arc in the main vacuum contact V2 is completely extinguished, adjust the first switch Z1 so that the main vacuum contact V2 is connected to the odd-numbered tap gear end. During the process, the load current I N flows through the second auxiliary vacuum contact V3, the second transition resistance R2 and the second switch Z2 in sequence for output;
闭合所述主真空触头V2，过渡电路形成桥接，负载电流IN从奇数分接档位端流经第一开关Z1和主真空触头V2输出；Closing the main vacuum contact V2, the transition circuit forms a bridge connection, and the load current I N flows from the odd tap gear end through the first switch Z1 and the main vacuum contact V2 for output;
断开所述第二辅助真空触头V3，产生电弧；在所述第二辅助真空触头V3内电弧完全熄灭后，调整第二开关Z2与所述第二过渡电阻R2断开，此过程中负载电流IN从奇数分接档位端依次流经第一开关Z1和主真空触头V2输出；Disconnect the second auxiliary vacuum contact V3 to generate an arc; after the arc in the second auxiliary vacuum contact V3 is completely extinguished, adjust the second switch Z2 to disconnect the second transition resistance R2, during this process The load current I N flows through the first switch Z1 and the main vacuum contact V2 in sequence from the odd-numbered tap gear end for output;
闭合所述第二辅助真空触头V3，调整第二开关Z2，使得主真空触头V2与第一过渡电阻R1端导通，负载电流IN从奇数分接档位端依次流经第一开关Z1和主真空触头V2输出；The second auxiliary vacuum contact V3 is closed, and the second switch Z2 is adjusted so that the main vacuum contact V2 and the first transition resistance R1 end are connected, and the load current I N flows through the first switch in sequence from the odd-numbered tap gear end. Z1 and main vacuum contact V2 output;
闭合所述第一主触头MC1，负载电流IN流经第一主触头MC1输出，分接变换操作结束，实现有载分接开关的分接选择器实现由偶数分接档位转换到奇数分接档位，完成一级调压。The first main contact MC1 is closed, the load current I N flows through the first main contact MC1 and output, the tap change operation is completed, and the tap selector of the on-load tap changer realizes the conversion from the even-numbered tap gear to Odd-numbered tap gears complete the first-level pressure regulation.
本发明提供了一种真空有载分接开关双电阻过渡电路及调压方法，设计了两条辅助真空触头支路和一个主真空触头支路，环流切断任务由两个辅助真空触头轮流担任，切换程序对称，使得两个辅助真空触头的烧损完全一致，减轻了辅助真空触头的切换任务，相比目前“单主真空触头、单辅助真空触头”结构的过渡电路，分担了仅一只辅助真空触头的切换任务，能够平衡主真空触头和辅助真空触头的切换容量；同时设计了两只过渡电阻轮换工作，以解决由于单过渡电阻发热，使得过渡电阻温度过高导致变压器油分解产气和绝缘性能降低的问题，提高了整台真空有载分接开关的电气寿命。The invention provides a double-resistance transition circuit of a vacuum on-load tap changer and a voltage regulation method. Two auxiliary vacuum contact branches and one main vacuum contact branch are designed, and the circulating current cut-off task is performed by the two auxiliary vacuum contacts. It takes turns and the switching procedure is symmetrical, so that the burning loss of the two auxiliary vacuum contacts is completely consistent, which reduces the switching task of the auxiliary vacuum contacts. Compared with the current transition circuit of "single main vacuum contact, single auxiliary vacuum contact" structure , sharing the switching task of only one auxiliary vacuum contact, which can balance the switching capacity of the main vacuum contact and the auxiliary vacuum contact; at the same time, two transition resistors are designed to work alternately to solve the problem of the transition resistance caused by the heating of the single transition resistance. Excessive temperature leads to the decomposition of transformer oil to produce gas and the reduction of insulation performance, which improves the electrical life of the entire vacuum on-load tap-changer.
附图说明Description of drawings
通过参考下面的附图，可以更为完整地理解本发明的示例性实施方式：Exemplary embodiments of the present invention may be more fully understood by reference to the following drawings:
图1为根据本发明实施方式的真空有载分接开关双电阻过渡电路100的电路图；1 is a circuit diagram of a dual-resistance transition circuit 100 for a vacuum on-load tap-changer according to an embodiment of the present invention;
图2为根据本发明实施方式的真空有载分接开关双电阻过渡电路转换的示意图；2 is a schematic diagram of a vacuum on-load tap-changer dual-resistance transition circuit conversion according to an embodiment of the present invention;
图3为根据本发明实施方式的真空有载分接开关双电阻过渡电路转换的示意图；3 is a schematic diagram of a vacuum on-load tap-changer dual-resistance transition circuit conversion according to an embodiment of the present invention;
图4为根据本发明实施方式的真空有载分接开关双电阻过渡电路转换的示意图；4 is a schematic diagram of a double-resistance transition circuit conversion of a vacuum on-load tap-changer according to an embodiment of the present invention;
图5为根据本发明实施方式的真空有载分接开关双电阻过渡电路转换的示意图；5 is a schematic diagram of a double-resistance transition circuit conversion of a vacuum on-load tap-changer according to an embodiment of the present invention;
图6为根据本发明实施方式的真空有载分接开关双电阻过渡电路转换的示意图；6 is a schematic diagram of a double-resistance transition circuit transition of a vacuum on-load tap-changer according to an embodiment of the present invention;
图7为根据本发明实施方式的真空有载分接开关双电阻过渡电路转换的示意图；7 is a schematic diagram of a double-resistance transition circuit transition of a vacuum on-load tap-changer according to an embodiment of the present invention;
图8为根据本发明实施方式的真空有载分接开关双电阻过渡电路转换的示意图；8 is a schematic diagram of a double-resistance transition circuit transition of a vacuum on-load tap-changer according to an embodiment of the present invention;
图9为根据本发明实施方式的真空有载分接开关双电阻过渡电路转换的示意图；9 is a schematic diagram of a double-resistance transition circuit transition of a vacuum on-load tap-changer according to an embodiment of the present invention;
图10为根据本发明实施方式的真空有载分接开关双电阻过渡电路转换的示意图；10 is a schematic diagram of a vacuum on-load tap-changer dual-resistance transition circuit conversion according to an embodiment of the present invention;
图11为根据本发明实施方式的真空有载分接开关双电阻过渡电路转换的示意图；11 is a schematic diagram of a vacuum on-load tap changer dual-resistance transition circuit switching according to an embodiment of the present invention;
图12为根据本发明实施方式的真空有载分接开关双电阻过渡电路由奇数分接档位到偶数分接档位的转换过程示意图；12 is a schematic diagram of the conversion process of the dual-resistance transition circuit of the vacuum on-load tap-changer according to an embodiment of the present invention from an odd-numbered tap gear position to an even-numbered tap gear position;
图13为根据本发明实施方式的真空有载分接开关双电阻过渡电路由偶数分接档位到奇数分接档位的转换过程示意图；13 is a schematic diagram of the conversion process of the double-resistance transition circuit of the vacuum on-load tap-changer according to an embodiment of the present invention from an even-numbered tap gear position to an odd-numbered tap gear position;
图14为根据本发明实施方式的另一真空有载分接开关双电阻过渡电路的电路图；14 is a circuit diagram of another vacuum on-load tap-changer double-resistance transition circuit according to an embodiment of the present invention;
图15为根据本发明实施方式的利用真空有载分接开关双电阻过渡电路由奇数分接档位转换到偶数分接档位的调压方法1500的流程图；15 is a flow chart of a
图16为根据本发明实施方式的利用真空有载分接开关双电阻过渡电路由偶数分接档位转换到奇数分接档位的调压方法1600的流程图。FIG. 16 is a flowchart of a
具体实施方式Detailed ways
现在参考附图介绍本发明的示例性实施方式，然而，本发明可以用许多不同的形式来实施，并且不局限于此处描述的实施例，提供这些实施例是为了详尽地且完全地公开本发明，并且向所属技术领域的技术人员充分传达本发明的范围。对于表示在附图中的示例性实施方式中的术语并不是对本发明的限定。在附图中，相同的单元/元件使用相同的附图标记。Exemplary embodiments of the present invention will now be described with reference to the accompanying drawings, however, the present invention may be embodied in many different forms and is not limited to the embodiments described herein, which are provided for the purpose of this thorough and complete disclosure invention, and fully convey the scope of the invention to those skilled in the art. The terms used in the exemplary embodiments shown in the drawings are not intended to limit the invention. In the drawings, the same elements/elements are given the same reference numerals.
除非另有说明，此处使用的术语(包括科技术语)对所属技术领域的技术人员具有通常的理解含义。另外，可以理解的是，以通常使用的词典限定的术语，应当被理解为与其相关领域的语境具有一致的含义，而不应该被理解为理想化的或过于正式的意义。Unless otherwise defined, terms (including scientific and technical terms) used herein have the commonly understood meanings to those skilled in the art. In addition, it is to be understood that terms defined in commonly used dictionaries should be construed as having meanings consistent with the context in the related art, and should not be construed as idealized or overly formal meanings.
图1为根据本发明实施方式的真空有载分接开关双电阻过渡电路100的电路图。如图1所示，本发明实施方式提供的真空有载分接开关双电阻过渡电路及调压方法，设计了两条辅助真空触头支路和一个主真空触头支路，环流切断任务由两个辅助真空触头轮流担任，切换程序对称，使得两个辅助真空触头的烧损完全一致，减轻了辅助真空触头的切换任务，相比目前“单主真空触头、单辅助真空触头”结构的过渡电路，分担了仅一只辅助真空触头的切换任务，能够平衡主真空触头和辅助真空触头的切换容量；同时设计了两只过渡电阻轮换工作，以解决由于单过渡电阻发热，使得过渡电阻温度过高导致变压器油分解产气和绝缘性能降低的问题，提高了整台真空有载分接开关的电气寿命。本发明实施方式提供的真空有载分接开关双电阻过渡电路100，包括：第一主触头MC1、第二主触头MC2、第一辅助真空触头V1、第二辅助真空触头V3、主真空触头V2、第一开关Z1、第二开关Z2、第一过渡电阻R1和第二过渡电阻R2；其中，所述第一主触头MC1的一端与变压器调压绕组的奇数分接档位相连接；第二主触头MC2的一端与变压器调压绕组的偶数分接档位相连接；所述第一辅助真空触头V1的一端分别与变压器调压绕组的奇数分接档位和第一开关Z1相连接，另一端与所述第一过渡电阻R1的一端相连接；所述第二辅助真空触头V3的一端分别与变压器调压绕组的偶数分接档位和第一开关Z1相连接，另一端与所述第二过渡电阻R2的一端相连接；所述第一过渡电阻R1和第二过渡电阻R2的另一端均与所述第二开关Z2相连接；所述主真空触头V2的一端与第一开关Z1相连接；所述主真空触头V2、第一主触头MC1和第二主触头MC2的另一端均与变压器中性点相连接，用于输出负载电流；在进行环流切断任务时，通过第一辅助真空触头V1、第二辅助真空触头V3、第一过渡电阻R1和第二过渡电阻R2轮流工作，以减轻辅助真空触头的切换任务，降低过渡电阻的发热，提高有载分接开关的电气寿命。FIG. 1 is a circuit diagram of a vacuum on-load tap-changer dual-resistance transition circuit 100 according to an embodiment of the present invention. As shown in FIG. 1 , in the double-resistance transition circuit and the voltage regulation method of the vacuum on-load tap-changer provided by the embodiment of the present invention, two auxiliary vacuum contact branches and one main vacuum contact branch are designed. The two auxiliary vacuum contacts act in turn, and the switching procedures are symmetrical, so that the burning loss of the two auxiliary vacuum contacts is completely consistent, which reduces the switching task of the auxiliary vacuum contacts. Compared with the current "single main vacuum contact, single auxiliary vacuum contact The transition circuit of the "head" structure shares the switching task of only one auxiliary vacuum contact, which can balance the switching capacity of the main vacuum contact and the auxiliary vacuum contact; at the same time, two transition resistors are designed to work alternately to solve the problem of single transition The resistance heats up, which causes the transformer oil to decompose and gas production and the insulation performance to be reduced due to the high temperature of the transition resistance, which improves the electrical life of the entire vacuum on-load tap-changer. The dual-resistance transition circuit 100 of the vacuum on-load tap-changer provided by the embodiment of the present invention includes: a first main contact MC1, a second main contact MC2, a first auxiliary vacuum contact V1, a second auxiliary vacuum contact V3, The main vacuum contact V2, the first switch Z1, the second switch Z2, the first transition resistance R1 and the second transition resistance R2; wherein, one end of the first main contact MC1 is connected to the odd tapped gear of the voltage regulating winding of the transformer Phase-phase connection; one end of the second main contact MC2 is connected with the even-numbered tap gears of the voltage regulating winding of the transformer; one end of the first auxiliary vacuum contact V1 is respectively connected with the odd-numbered tapping gears of the voltage regulating winding of the transformer and The first switch Z1 is connected with the other end of the first transition resistor R1; The other end is connected to one end of the second transition resistance R2; the other ends of the first transition resistance R1 and the second transition resistance R2 are both connected to the second switch Z2; the main vacuum contact One end of the head V2 is connected to the first switch Z1; the other ends of the main vacuum contact V2, the first main contact MC1 and the second main contact MC2 are all connected to the neutral point of the transformer for outputting load current ; When the circulating current is cut off, the first auxiliary vacuum contact V1, the second auxiliary vacuum contact V3, the first transition resistance R1 and the second transition resistance R2 work in turn to reduce the switching task of the auxiliary vacuum contact and reduce the The heating of the transition resistor increases the electrical life of the on-load tap-changer.
优选地，其中当第一主触头MC1、第一辅助真空触头V1、第二辅助真空触头V3和主真空触头V2均处于导通状态，第一开关Z1与变压器绕组的奇数分接档位端导通，第二开关Z2与第一过渡电阻R1端导通，第二主触头MC2处于断开状态，有载分接开关的分接选择器与变压器调压绕组的奇数分接档位相连接时，能够使负载电流经所述第一主触头MC1输出。Preferably, when the first main contact MC1, the first auxiliary vacuum contact V1, the second auxiliary vacuum contact V3 and the main vacuum contact V2 are all in a conducting state, the first switch Z1 is connected to the odd-numbered taps of the transformer windings. The gear end is turned on, the second switch Z2 and the first transition resistance R1 end are turned on, the second main contact MC2 is in the off state, the tap selector of the on-load tap-changer is connected with the odd-numbered taps of the voltage regulating winding of the transformer When the gears are connected, the load current can be output through the first main contact MC1.
优选地，其中当第二主触头MC2、第一辅助真空触头V1、第二辅助主真空触头V2和主第二辅助真空触头V3均处于导通状态，第一开关Z1与变压器绕组的偶数分接档位端导通，第二开关Z2与第二过渡电阻R2端导通，第一主触头MC1处于断开状态，有载分接开关的分接选择器与变压器调压绕组的偶数分接档位相连接时，能够使负载电流经所述第二主触头MC2输出。Preferably, when the second main contact MC2, the first auxiliary vacuum contact V1, the second auxiliary main vacuum contact V2 and the main second auxiliary vacuum contact V3 are all in a conducting state, the first switch Z1 is connected to the transformer winding. The even-numbered tap gear end of the OLTC is turned on, the second switch Z2 and the second transition resistor R2 end are turned on, the first main contact MC1 is in the off state, the tap selector of the on-load tap-changer is connected to the voltage regulating winding of the transformer When the even-numbered tap positions are connected, the load current can be output through the second main contact MC2.
优选地，其中所述第一开关Z1为机械单触头开关或转换开关；所述第二开关Z2为机械单触头开关或转换开关。Preferably, the first switch Z1 is a mechanical single-contact switch or a transfer switch; the second switch Z2 is a mechanical single-contact switch or a transfer switch.
在本发明的实施方式中，第一开关Z1为机械单触头开关，包括第一静触头12、第二静触头13和动触头11；所述第一静触头12与所述奇数分接档位连接；所述第二静触头13与所述偶数分接档位连接；所述动触头11的一端与主真空触头V2连接，另一端与第一静触头12，以及第二静触头13滑动连接。第二开关Z2为机械单触头开关，包括：第一静触头22、第二静触头23和动触头21；所述第一静触头22与第一过渡电阻R1连接；所述第二静触头23与第二过渡电阻R2连接；所述动触头21的一端与主真空触头V2连接，另一端与第一静触头23，以及第二静触头22滑动连接。In the embodiment of the present invention, the first switch Z1 is a mechanical single-contact switch, including a first
在本发明的实施方式中，当有载分接开关的分接选择器与变压器调压绕组的奇数分接档位相连接时，第一主触头MC1导通、第二主触头MC2断开、第一辅助真空触头V1导通、主真空触头V2导通、第二辅助真空触头V3导通，第一开关Z1的动触头11与其第一静触头12连接，第二开关Z2的动触头21与其第一静触头22连接，负载电流经第一主触头MC1输出。当有载分接开关的分接选择器与变压器调压绕组的偶数分接档位相连接时，第二主触头MC2导通、第一主触头MC1断开、第一辅助真空触头V1导通、主真空触头V2导通、第二辅助真空触头V3导通，第一开关Z1的动触头11与其第二静触头13连接，第二开关Z2的动触头21与其第二静触头23连接，负载电流经第二主触头MC2输出。In the embodiment of the present invention, when the tap selector of the on-load tap-changer is connected with the odd-numbered tap positions of the voltage regulating winding of the transformer, the first main contact MC1 is turned on, and the second main contact MC2 is turned off. On, the first auxiliary vacuum contact V1 is turned on, the main vacuum contact V2 is turned on, the second auxiliary vacuum contact V3 is turned on, the moving
优选地，其中所述利用如下方式实现有载分接开关的分接选择器由奇数分接档位转换到偶数分接档位，包括：Preferably, wherein the tap selector of the on-load tap-changer is converted from the odd-numbered tap gear position to the even-numbered tap gear position by using the following methods, including:
断开所述第一主触头MC1，负载电流IN从奇数分接档位端依次流经第一开关Z1和主真空触头V2输出；The first main contact MC1 is disconnected, and the load current IN flows through the first switch Z1 and the main vacuum contact V2 in sequence from the odd - numbered tap gear end for output;
断开所述主真空触头V2，产生电弧；在所述主真空触头V2内电弧完全熄灭后，调整第一开关Z1，使得主真空触头V2与偶数分接档位端导通，此过程中负载电流IN依次流经第一辅助真空触头V1、第一过渡电阻R1和第二开关Z2输出；Disconnect the main vacuum contact V2 to generate an arc; after the arc in the main vacuum contact V2 is completely extinguished, adjust the first switch Z1 so that the main vacuum contact V2 is connected to the even-numbered tap gear end. During the process, the load current I N flows through the first auxiliary vacuum contact V1, the first transition resistance R1 and the second switch Z2 in sequence for output;
闭合所述主真空触头V2，过渡电路形成桥接，负载电流IN从偶数分接档位端依次流经第一开关Z1和主真空触头V2输出；Closing the main vacuum contact V2, the transition circuit forms a bridge connection, and the load current I N flows through the first switch Z1 and the main vacuum contact V2 from the even-numbered tap gear end in turn for output;
断开所述第一辅助真空触头V1，产生电弧；在第一辅助真空触头V1内电弧完全熄灭后，调整第二开关Z2与所述第一过渡电阻R1断开，此过程中负载电流IN从偶数分接档位端依次流经第一开关Z1和主真空触头V2输出；Disconnect the first auxiliary vacuum contact V1 to generate an arc; after the arc in the first auxiliary vacuum contact V1 is completely extinguished, adjust the second switch Z2 to disconnect from the first transition resistance R1, during this process the load current I N flows through the first switch Z1 and the main vacuum contact V2 in sequence from the even-numbered tap gear end;
闭合所述第一辅助真空触头V1，调整第二开关Z2，使得主真空触头V2与第二过渡电阻R2端导通，负载电流IN从偶数分接档位端依次流经第一开关Z1和主真空触头V2输出；Close the first auxiliary vacuum contact V1, adjust the second switch Z2, so that the main vacuum contact V2 and the second transition resistor R2 are connected, and the load current I N flows through the first switch from the even-numbered tap gear end in turn Z1 and main vacuum contact V2 output;
闭合所述第二主触头MC2，使得负载电流IN流经第二主触头MC2输出，分接变换操作结束，完成一级调压。The second main contact MC2 is closed, so that the load current IN flows through the second main contact MC2 for output, the tap change operation is completed, and the first - stage voltage regulation is completed.
在本发明的实施方式中，假定有载分接开关的分接选择器的转换选择器初点位置不变，且有载分接开关档位编号与分接选择器触头组标号一致，有载分接开关档位要从一个奇数档位N上升到一个偶数档位N+1。In the embodiment of the present invention, it is assumed that the initial position of the changeover selector of the tap selector of the on-load tap-changer remains unchanged, and the gear position number of the on-load tap-changer is consistent with the label of the tap selector contact group, there are The on-load tap-changer gear should be raised from an odd-numbered gear N to an even-numbered gear N+1.
分接选择器与变压器调压绕组的奇数分接档位连接时，如图2所示，第一主触头MC1导通、第二主触头MC2断开、第一辅助真空触头V1导通、主真空触头V2导通、第二辅助真空触头V3导通，第一开关Z1的动触头11与其第一静触头12连接，第二开关Z2的动触头21与其第一静触头22连接，负载电流经第一主触头MC1输出。分接选择器由奇数分接档位转换到偶数分接时，具体操作方法包括：When the tap selector is connected to the odd-numbered tap positions of the voltage regulating winding of the transformer, as shown in Figure 2, the first main contact MC1 is turned on, the second main contact MC2 is turned off, and the first auxiliary vacuum contact V1 is turned on. On, the main vacuum contact V2 is on, the second auxiliary vacuum contact V3 is on, the moving
(1)如图2所示，第一主触头MC1闭合，负载电流IN经第一主触头MC1输出；(1) As shown in FIG. 2 , the first main contact MC1 is closed, and the load current I N is output through the first main contact MC1;
(2)如图3所示，断开所述第一主触头MC1，负载电流IN从奇数分接档位端依次流经第一开关Z1和主真空触头V2输出；(2) As shown in FIG. 3, disconnect the first main contact MC1, and the load current IN flows through the first switch Z1 and the main vacuum contact V2 from the odd-numbered tap gear end in turn for output;
(3)如图4所示，断开所述主真空触头V2，产生电弧；该电弧熄灭后，负载电流IN依次流经第一辅助真空触头V1、第一过渡电阻R1和第二开关Z2输出，所述主真空触头V2两端的恢复电压UV2＝IN×R1；(3) As shown in FIG. 4, the main vacuum contact V2 is disconnected to generate an arc; after the arc is extinguished, the load current IN flows through the first auxiliary vacuum contact V1, the first transition resistance R1 and the second Switch Z2 outputs, the recovery voltage U V2 =IN ×R1 at both ends of the main vacuum contact V2;
(4)如图5所示，主真空触头V2内电弧完全熄灭后，调整第一开关Z1的动触头11由连接第一静触头12旋转到连接第二静触头13，此时负载电流IN依次流经第一辅助真空触头V1、第一过渡电阻R1和第二开关Z2输出；(4) As shown in Figure 5, after the arc in the main vacuum contact V2 is completely extinguished, adjust the moving
(5)如图6所示，闭合所述主真空触头V2，过渡电路形成桥接，产生循环电流Ic1；负载电流IN从偶数分接档位端依次流经第一开关Z1和主真空触头V2输出；流经所述主真空触头V2的电流IV2＝IN+IC1；其中，IC1＝US/R1，所述US为有载分接开关级电压；(5) As shown in FIG. 6 , the main vacuum contact V2 is closed, the transition circuit forms a bridge, and a circulating current I c1 is generated; the load current I N flows through the first switch Z1 and the main vacuum sequentially from the even-numbered tap gear end. Contact V2 output; current I V2 =IN +I C1 flowing through the main vacuum contact V2; wherein, I C1 = US /R1, the US is the on-load tap- changer stage voltage;
(6)如图7所示，断开第一辅助真空触头V1，产生电弧；负载电流IN从偶数分接档位端依次流经第一开关Z1和主真空触头V2输出；所述第一辅助真空触头V1两端的恢复电压为UV1＝US；(6) As shown in FIG. 7 , disconnect the first auxiliary vacuum contact V1 to generate an arc; the load current I N flows through the first switch Z1 and the main vacuum contact V2 from the even-numbered tap gear end in turn and is output; the described The recovery voltage at both ends of the first auxiliary vacuum contact V1 is U V1 =U S ;
(7)如图8所示，第一辅助真空触头V1内电弧完全熄灭后，调整第二开关Z2的动触头21与其第一静触头22断开，负载电流IN从偶数分接档位端依次流经第一开关Z1和主真空触头V2输出；(7) As shown in FIG. 8 , after the arc in the first auxiliary vacuum contact V1 is completely extinguished, adjust the moving
(8)如图9所示，闭合第一辅助真空触头V1，负载电流IN从偶数分接档位端依次流经第一开关Z1和主真空触头V2输出；(8) As shown in FIG. 9, the first auxiliary vacuum contact V1 is closed, and the load current I N flows through the first switch Z1 and the main vacuum contact V2 from the even-numbered tap gear end in turn and is output;
(9)如图10所示，调整第二开关Z2的动触头21连接到第二静触头23，负载电流IN从偶数分接档位端依次流经第一开关Z1和主真空触头V2输出；(9) As shown in FIG. 10 , adjust the moving
(10)如图11所示，闭合第二主触头MC2，负载电流IN流经第二主触头MC2输出，分接变换操作结束，切换开关完成一级调压。(10) As shown in FIG. 11 , the second main contact MC2 is closed, the load current IN flows through the second main contact MC2 for output, the tap change operation ends, and the switch completes the first-stage voltage regulation.
其中，分接选择器由奇数分接档位转换到偶数分接档位过程中，过渡电路转换程序如图12所示。Among them, in the process of switching the tap selector from the odd-numbered tap gear position to the even-numbered tap gear position, the transition circuit conversion procedure is shown in Figure 12.
优选地，其中所述利用如下方式实现有载分接开关的分接选择器由偶数分接档位转换到奇数分接档位，包括：Preferably, wherein the tap selector of the on-load tap-changer is converted from the even-numbered tap gear position to the odd-numbered tap gear position by using the following methods, including:
断开所述第二主触头MC2，负载电流IN从偶数分接档位端依次流经第一开关Z1和主真空触头V2输出；The second main contact MC2 is disconnected, and the load current I N flows through the first switch Z1 and the main vacuum contact V2 from the even-numbered tap gear end in turn for output;
断开所述主真空触头V2，产生电弧；在所述主真空触头V2内电弧完全熄灭后，调整第一开关Z1，使得主真空触头V2与奇数分接档位端导通，此过程中负载电流IN依次流经第二辅助真空触头V3、第二过渡电阻R2和第二开关Z2输出；Disconnect the main vacuum contact V2 to generate an arc; after the arc in the main vacuum contact V2 is completely extinguished, adjust the first switch Z1 so that the main vacuum contact V2 is connected to the odd-numbered tap gear end. During the process, the load current I N flows through the second auxiliary vacuum contact V3, the second transition resistance R2 and the second switch Z2 in sequence for output;
闭合所述主真空触头V2，过渡电路形成桥接，负载电流IN从奇数分接档位端流经第一开关Z1和主真空触头V2输出；Closing the main vacuum contact V2, the transition circuit forms a bridge connection, and the load current I N flows from the odd tap gear end through the first switch Z1 and the main vacuum contact V2 for output;
断开所述第二辅助真空触头V3，产生电弧；在所述第二辅助真空触头V3内电弧完全熄灭后，调整第二开关Z2与所述第二过渡电阻R2断开，此过程中负载电流IN从奇数分接档位端依次流经第一开关Z1和主真空触头V2输出；Disconnect the second auxiliary vacuum contact V3 to generate an arc; after the arc in the second auxiliary vacuum contact V3 is completely extinguished, adjust the second switch Z2 to disconnect the second transition resistance R2, during this process The load current I N flows through the first switch Z1 and the main vacuum contact V2 in sequence from the odd-numbered tap gear end for output;
闭合所述第二辅助真空触头V3，调整第二开关Z2，使得主真空触头V2与第一过渡电阻R1端导通，负载电流IN从奇数分接档位端依次流经第一开关Z1和主真空触头V2输出；The second auxiliary vacuum contact V3 is closed, and the second switch Z2 is adjusted so that the main vacuum contact V2 and the first transition resistance R1 end are connected, and the load current I N flows through the first switch in sequence from the odd-numbered tap gear end. Z1 and main vacuum contact V2 output;
闭合所述第一主触头MC1，负载电流IN流经第一主触头MC1输出，分接变换操作结束，完成一级调压。The first main contact MC1 is closed, the load current I N flows through the first main contact MC1 for output, the tap change operation ends, and the first-stage voltage regulation is completed.
在本发明的实施方式中，有载分接开关的分接选择器与变压器调压绕组的偶数分接连接时，如图11所示，第二主触头MC2导通、第一主触头MC1断开、第一辅助真空触头V1导通、主真空触头V2导通、第二辅助真空触头V3导通，第一开关Z1的动触头11与其第二静触头13连接，第二开关Z2的动触头21与其第二静触头23连接，负载电流经第二主触头MC2输出。分接选择器由偶数分接档位转换到奇数分接档位时，具体操作方法包括：In the embodiment of the present invention, when the tap selector of the on-load tap changer is connected to the even-numbered taps of the voltage regulating winding of the transformer, as shown in FIG. 11 , the second main contact MC2 is turned on, and the first main contact is turned on. MC1 is turned off, the first auxiliary vacuum contact V1 is turned on, the main vacuum contact V2 is turned on, the second auxiliary vacuum contact V3 is turned on, and the moving
(1)断开所述第二主触头MC2，负载电流IN从偶数分接档位端依次流经第一开关Z1和主真空触头V2输出；(1) Disconnect the second main contact MC2, and the load current IN flows through the first switch Z1 and the main vacuum contact V2 in turn from the even-numbered tap gear end for output;
(2)断开所述主真空触头V2，产生电弧；该电弧熄灭后，负载电流IN依次流经第二辅助真空触头V3、第二过渡电阻R2和第二开关Z2输出，所述主真空触头V2两端的恢复电压UV2＝IN×R2；(2) Disconnect the main vacuum contact V2 to generate an arc; after the arc is extinguished, the load current I N flows through the second auxiliary vacuum contact V3, the second transition resistance R2 and the second switch Z2 in turn for output, the said Recovery voltage U V2 at both ends of the main vacuum contact V2 =IN ×R2;
(3)主真空触头V2内电弧完全熄灭后，第一开关Z1的动触头由连接第二静触头13旋转到连接第一静触头12，负载电流IN依次流经第二辅助真空触头V3、第二过渡电阻R2和第二开关Z2输出；(3) After the arc in the main vacuum contact V2 is completely extinguished, the moving contact of the first switch Z1 is rotated from connecting the second
(4)闭合所述主真空触头V2，过渡电路形成桥接，产生循环电流IC2；负载电流IN从奇数分接档位端流经第一开关Z1和主真空触头V2输出；流经所述主真空触头V2的电流IV2＝IN-IC1；其中，IC2＝US/R2，所述US为有载分接开关级电压；(4) closing the main vacuum contact V2, the transition circuit forms a bridge connection, and generates a circulating current I C2 ; the load current I N flows through the first switch Z1 and the main vacuum contact V2 output from the odd tap gear end; The current I V2 = IN -I C1 of the main vacuum contact V2; wherein, I C2 = US /R2, and the US is the on-load tap- changer stage voltage;
(5)断开第二辅助真空触头V3，产生电弧；负载电流IN从奇数分接档位端依次流经第一开关Z1和主真空触头V2输出；所述第二辅助真空触头V3两端的恢复电压为UV3＝US；(5) Disconnect the second auxiliary vacuum contact V3 to generate an arc; the load current I N flows through the first switch Z1 and the main vacuum contact V2 from the odd-numbered tap gear end in turn and outputs; the second auxiliary vacuum contact The recovery voltage at both ends of V3 is U V3 =U S ;
(6)第二辅助真空触头V3内电弧完全熄灭后，调整第二开关Z2的动触头21与其第二静触头23断开，负载电流IN从奇数分接档位端依次流经第一开关Z1和主真空触头V2输出；(6) After the arc in the second auxiliary vacuum contact V3 is completely extinguished, adjust the moving
(7)第二辅助真空触头V3闭合，负载电流IN从奇数分接档位端依次流经第一开关Z1和主真空触头V2输出；(7) The second auxiliary vacuum contact V3 is closed, and the load current I N flows through the first switch Z1 and the main vacuum contact V2 from the odd-numbered tap gear end in turn for output;
(8)调整第二开关Z2的动触头21旋转连接到其第一静触头22，负载电流IN从奇数分接档位端依次流经第一开关Z1和主真空触头V2输出；(8) Adjust the
(9)闭合第一主触头MC1，负载电流IN流经第一主触头MC1输出，分接变换操作结束，切换开关完成一级调压。(9) The first main contact MC1 is closed, the load current I N flows through the first main contact MC1 for output, the tap change operation ends, and the switch completes the first-stage voltage regulation.
其中，分接选择器由偶数分接档位转换到奇数分接档位过程中，过渡电路转换程序如图13所示。Among them, in the process of switching the tap selector from the even-numbered tap gear position to the odd-numbered tap gear position, the transition circuit switching procedure is shown in Figure 13.
在本发明的实施方式中，真空有载分接开关过渡电路的切换开关任务如下表所示：In an embodiment of the present invention, the diverter switch task of the vacuum on-load tap-changer transition circuit is shown in the following table:
其中，IN为负载电流；Us为有载分接开关级电压；R1和R2均为过渡电阻。Among them, IN is the load current; Us is the on - load tap-changer stage voltage; R1 and R2 are transition resistances.
图14为根据本发明实施方式的另一真空有载分接开关双电阻过渡电路的电路图。如图14所示，仅将图1中的第一开关和第二开关设置为转换开关，其他元件与图1中的元件相同，且功能和作用上与图1所示过渡电路的功能和作用也相同，在此不再赘述。14 is a circuit diagram of another vacuum on-load tap changer double-resistance transition circuit according to an embodiment of the present invention. As shown in FIG. 14 , only the first switch and the second switch in FIG. 1 are set as transfer switches, other components are the same as those in FIG. 1 , and their functions and functions are the same as those of the transition circuit shown in FIG. 1 . It is also the same and will not be repeated here.
图15为根据本发明实施方式的利用真空有载分接开关双电阻过渡电路由奇数分接档位转换到偶数分接档位的调压方法1500的流程图。如图15所示，本发明实施方式提供的利用如上所述的真空有载分接开关双电阻过渡电路进行调压的方1500，从步骤1501处开始，在步骤1501断开所述第一主触头MC1，负载电流IN从奇数分接档位端依次流经第一开关Z1和主真空触头V2输出。FIG. 15 is a flowchart of a
在步骤1502，断开所述主真空触头V2，产生电弧；在所述主真空触头V2内电弧完全熄灭后，调整第一开关Z1，使得主真空触头V2与偶数分接档位端导通，此过程中负载电流IN依次流经第一辅助真空触头V1、第一过渡电阻R1和第二开关Z2输出。In
在步骤1503，闭合所述主真空触头V2，过渡电路形成桥接，负载电流IN从偶数分接档位端依次流经第一开关Z1和主真空触头V2输出。In
在步骤1504，断开所述第一辅助真空触头V1，产生电弧；在第一辅助真空触头V1内电弧完全熄灭后，调整第二开关Z2与所述第一过渡电阻R1断开，此过程中负载电流IN从偶数分接档位端依次流经第一开关Z1和主真空触头V2输出。In
在步骤1505，闭合所述第一辅助真空触头V1，调整第二开关Z2，使得主真空触头V2与第二过渡电阻R2端导通，负载电流IN从偶数分接档位端依次流经第一开关Z1和主真空触头V2输出。In
在步骤1506，闭合所述第二主触头MC2，使得负载电流IN流经第二主触头MC2输出，分接变换操作结束，实现有载分接开关的分接选择器由奇数分接档位转换到偶数分接档位，完成一级调压。In
本发明的实施例的利用真空有载分接开关双电阻过渡电路由奇数分接档位转换到偶数分接档位的调压方法1500与本发明的另一个实施例的真空有载分接开关双电阻过渡电路100相对应，在此不再赘述。The
图16为根据本发明实施方式的利用真空有载分接开关双电阻过渡电路由偶数分接档位转换到奇数分接档位的调压方法1600的流程图。如图16所示，本发明实施方式提供的利用如上所述的真空有载分接开关双电阻过渡电路进行调压的方法1600，从步骤1601处开始，在步骤1601断开所述第二主触头MC2，负载电流IN从偶数分接档位端依次流经第一开关Z1和主真空触头V2输出。FIG. 16 is a flowchart of a
在步骤1602，断开所述主真空触头V2，产生电弧；在所述主真空触头V2内电弧完全熄灭后，调整第一开关Z1，使得主真空触头V2与奇数分接档位端导通，此过程中负载电流IN依次流经第二辅助真空触头V3、第二过渡电阻R2和第二开关Z2输出。In
在步骤1603，闭合所述主真空触头V2，过渡电路形成桥接，负载电流IN从奇数分接档位端流经第一开关Z1和主真空触头V2输出。In
在步骤1604，断开所述第二辅助真空触头V3，产生电弧；在所述第二辅助真空触头V3内电弧完全熄灭后，调整第二开关Z2与所述第二过渡电阻R2断开，此过程中负载电流IN从奇数分接档位端依次流经第一开关Z1和主真空触头V2输出。In
在步骤1605，闭合所述第二辅助真空触头V3，调整第二开关Z2，使得主真空触头V2与第一过渡电阻R1端导通，负载电流IN从奇数分接档位端依次流经第一开关Z1和主真空触头V2输出。In
在步骤1606，闭合所述第一主触头MC1，负载电流IN流经第一主触头MC1输出，分接变换操作结束，实现有载分接开关的分接选择器实现由偶数分接档位转换到奇数分接档位，完成一级调压。In
本发明的实施例的利用真空有载分接开关双电阻过渡电路由偶数分接档位转换到奇数分接档位的调压方法1600与本发明的另一个实施例的真空有载分接开关双电阻过渡电路100相对应，在此不再赘述。The
已经通过参考少量实施方式描述了本发明。然而，本领域技术人员所公知的，正如附带的专利权利要求所限定的，除了本发明以上公开的其他的实施例等同地落在本发明的范围内。The present invention has been described with reference to a few embodiments. However, as is known to those skilled in the art, other embodiments than the above disclosed invention are equally within the scope of the invention, as defined by the appended patent claims.
通常地，在权利要求中使用的所有术语都根据他们在技术领域的通常含义被解释，除非在其中被另外明确地定义。所有的参考“一个/所述/该[装置、组件等]”都被开放地解释为所述装置、组件等中的至少一个实例，除非另外明确地说明。这里公开的任何方法的步骤都没必要以公开的准确的顺序运行，除非明确地说明。Generally, all terms used in the claims are to be interpreted according to their ordinary meaning in the technical field, unless explicitly defined otherwise herein. All references to "a/the/the [means, component, etc.]" are open to interpretation as at least one instance of said means, component, etc., unless expressly stated otherwise. The steps of any method disclosed herein do not have to be performed in the exact order disclosed, unless explicitly stated.
本领域内的技术人员应明白，本申请的实施例可提供为方法、系统、或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。As will be appreciated by those skilled in the art, the embodiments of the present application may be provided as a method, a system, or a computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
本申请是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present application. It will be understood that each flow and/or block in the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to the processor of a general purpose computer, special purpose computer, embedded processor or other programmable data processing device to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing device produce Means for implementing the functions specified in a flow or flow of a flowchart and/or a block or blocks of a block diagram.
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions The apparatus implements the functions specified in the flow or flows of the flowcharts and/or the block or blocks of the block diagrams.
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。These computer program instructions can also be loaded on a computer or other programmable data processing device to cause a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process such that The instructions provide steps for implementing the functions specified in the flow or blocks of the flowcharts and/or the block or blocks of the block diagrams.
最后应当说明的是：以上实施例仅用以说明本发明的技术方案而非对其限制，尽管参照上述实施例对本发明进行了详细的说明，所属领域的普通技术人员应当理解：依然可以对本发明的具体实施方式进行修改或者等同替换，而未脱离本发明精神和范围的任何修改或者等同替换，其均应涵盖在本发明的权利要求保护范围之内。Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the present invention can still be Modifications or equivalent replacements are made to the specific embodiments of the present invention, and any modifications or equivalent replacements that do not depart from the spirit and scope of the present invention shall be included within the protection scope of the claims of the present invention.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112670066A (en) * | 2020-11-18 | 2021-04-16 | 中国电力科学研究院有限公司 | Transition circuit device and method for alternately bearing symmetrical vacuum bubbles |
| CN112670067A (en) * | 2020-11-18 | 2021-04-16 | 中国电力科学研究院有限公司 | Symmetrical vacuum bubble load balancing transition circuit device and control method |
| CN112670068A (en) * | 2020-11-18 | 2021-04-16 | 中国电力科学研究院有限公司 | Transition circuit device with vacuum on-load tap-changer and control method |
| CN113921307A (en) * | 2021-09-28 | 2022-01-11 | 西安交通大学 | A kind of on-load tap changer double resistance symmetrical transition circuit and voltage regulation method |
| CN114446621A (en) * | 2022-02-15 | 2022-05-06 | 西安交通大学 | A kind of on-load tap changer double resistance double isolation contact transition circuit and voltage regulation method |
| CN115274320A (en) * | 2021-12-07 | 2022-11-01 | 中国电力科学研究院有限公司 | Vacuum on-load tap-changer single-resistor transition circuit and control method |
| CN120103135A (en) * | 2025-05-12 | 2025-06-06 | 中国电力科学研究院有限公司 | On-line monitoring method and device for actual action time sequence of vacuum on-load tap-changer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002319512A (en) * | 2001-04-24 | 2002-10-31 | Mitsubishi Electric Corp | On-load tap changer |
| CN103460324A (en) * | 2011-04-02 | 2013-12-18 | 赖茵豪森机械制造公司 | Tap changer and vacuum interrupter for such a tap changer |
| CN104465168A (en) * | 2014-12-12 | 2015-03-25 | 国家电网公司 | Transition circuit of vacuum type on-load tap-changer and operation method |
| CN105304358A (en) * | 2014-07-03 | 2016-02-03 | 刘洪军 | Vacuum load tap switch employing deactivated vacuum tube after ending voltage regulation switching |
| WO2020030445A1 (en) * | 2018-08-07 | 2020-02-13 | Maschinenfabrik Reinhausen Gmbh | On-load tap changer for switching without any interruption between winding taps of a tap-changing transformer and tap-changing transformer |
| CN213211935U (en) * | 2020-06-24 | 2021-05-14 | 中国电力科学研究院有限公司 | A vacuum on-load tap-changer double-resistance transition circuit |
-
2020
- 2020-06-24 CN CN202010590795.1A patent/CN111799075B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002319512A (en) * | 2001-04-24 | 2002-10-31 | Mitsubishi Electric Corp | On-load tap changer |
| CN103460324A (en) * | 2011-04-02 | 2013-12-18 | 赖茵豪森机械制造公司 | Tap changer and vacuum interrupter for such a tap changer |
| CN105304358A (en) * | 2014-07-03 | 2016-02-03 | 刘洪军 | Vacuum load tap switch employing deactivated vacuum tube after ending voltage regulation switching |
| CN104465168A (en) * | 2014-12-12 | 2015-03-25 | 国家电网公司 | Transition circuit of vacuum type on-load tap-changer and operation method |
| WO2020030445A1 (en) * | 2018-08-07 | 2020-02-13 | Maschinenfabrik Reinhausen Gmbh | On-load tap changer for switching without any interruption between winding taps of a tap-changing transformer and tap-changing transformer |
| CN213211935U (en) * | 2020-06-24 | 2021-05-14 | 中国电力科学研究院有限公司 | A vacuum on-load tap-changer double-resistance transition circuit |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112670066A (en) * | 2020-11-18 | 2021-04-16 | 中国电力科学研究院有限公司 | Transition circuit device and method for alternately bearing symmetrical vacuum bubbles |
| CN112670067A (en) * | 2020-11-18 | 2021-04-16 | 中国电力科学研究院有限公司 | Symmetrical vacuum bubble load balancing transition circuit device and control method |
| CN112670068A (en) * | 2020-11-18 | 2021-04-16 | 中国电力科学研究院有限公司 | Transition circuit device with vacuum on-load tap-changer and control method |
| CN112670067B (en) * | 2020-11-18 | 2022-07-01 | 中国电力科学研究院有限公司 | Symmetrical vacuum bubble load balancing transition circuit device and control method |
| CN112670066B (en) * | 2020-11-18 | 2023-03-21 | 中国电力科学研究院有限公司 | Transition circuit device and method for alternately bearing symmetrical vacuum bubbles |
| CN112670068B (en) * | 2020-11-18 | 2024-04-12 | 中国电力科学研究院有限公司 | A transition circuit device with vacuum on-load tap changer and control method |
| EP4250320A4 (en) * | 2020-11-18 | 2024-10-16 | China Electric Power Research Institute Company Limited | SYMMETRICAL VACUUM BUBBLE LOAD COMPENSATION TRANSITION CIRCUIT AND CONTROL METHODS |
| CN113921307A (en) * | 2021-09-28 | 2022-01-11 | 西安交通大学 | A kind of on-load tap changer double resistance symmetrical transition circuit and voltage regulation method |
| CN115274320A (en) * | 2021-12-07 | 2022-11-01 | 中国电力科学研究院有限公司 | Vacuum on-load tap-changer single-resistor transition circuit and control method |
| CN114446621A (en) * | 2022-02-15 | 2022-05-06 | 西安交通大学 | A kind of on-load tap changer double resistance double isolation contact transition circuit and voltage regulation method |
| CN120103135A (en) * | 2025-05-12 | 2025-06-06 | 中国电力科学研究院有限公司 | On-line monitoring method and device for actual action time sequence of vacuum on-load tap-changer |
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