技术领域technical field
本实用新型涉及变压器技术领域，具体涉及一种30脉波自耦移相整流变压器。The utility model relates to the technical field of transformers, in particular to a 30-pulse self-coupling phase-shifting rectifier transformer.
背景技术Background technique
当前，随着电力电子技术的飞速发展，越来越多的整流装置被应用到各个领域。由于其非线性特性，网侧输入电流产生了严重畸变，降低了设备的电磁兼容性能，给电网及其它用电设备带来了危害。因此，如何抑制电流谐波是一项重要任务。At present, with the rapid development of power electronics technology, more and more rectifiers are applied to various fields. Due to its nonlinear characteristics, the grid-side input current has serious distortion, which reduces the electromagnetic compatibility performance of the equipment and brings harm to the grid and other electrical equipment. Therefore, how to suppress current harmonics is an important task.
谐波抑制是涉及电力电子技术、电力系统、电气自动化技术、理论电工等领域的重大课题。由于电力电子装置的应用日益广泛，使得谐波和无功问题引起人们越来越多的关注。同时，也由于电力电子技术的飞速进步，人们认识到，通过增加整流的脉冲数，可以提高整流器的输入电流及输出电压特性。脉冲数越多，输入电流及输出电压中的谐波阶次越高。分析可知，多脉冲整流器中的变压器就相当于一个无源滤波器，滤除了输出电流中的特定次谐波。通过增加整流的脉冲数，可以有效减小输入电流总畸变率及电压脉动系数。Harmonic suppression is a major topic involving power electronics technology, power system, electrical automation technology, theoretical electrician and other fields. Due to the increasingly widespread application of power electronic devices, harmonic and reactive power problems have attracted more and more attention. At the same time, due to the rapid progress of power electronics technology, people realize that by increasing the number of rectified pulses, the input current and output voltage characteristics of the rectifier can be improved. The higher the number of pulses, the higher the harmonic order in the input current and output voltage. It can be seen from the analysis that the transformer in the multi-pulse rectifier is equivalent to a passive filter, which filters out specific harmonics in the output current. By increasing the number of rectified pulses, the total distortion rate of the input current and the voltage ripple coefficient can be effectively reduced.
传统的30脉波移相整流变压器均采用延边三角形移相，或采用多台移相变压器联合移相并联工作，完全通过变压器磁耦合将输入能量传输到输出端，所以这种变压器的等效容量比较大、绕组数多、接线复杂、成本高。The traditional 30-pulse phase-shifting rectifier transformers all use extended-edge triangle phase-shifting, or use multiple phase-shifting transformers to work in parallel with phase-shifting, and completely transmit the input energy to the output terminal through the transformer magnetic coupling, so the equivalent capacity of this transformer Relatively large, many windings, complex wiring, high cost.
发明内容Contents of the invention
本实用新型的目的是针对现有技术中的上述不足，提供了一种30脉波自耦移相整流变压器。The purpose of this utility model is to provide a 30-pulse self-coupling phase-shifting rectifier transformer for the above-mentioned deficiencies in the prior art.
本实用新型的目的通过以下技术方案实现：一种30脉波自耦移相整流变压器，包括有框架和绕组；所述框架包括有相互平行的上横轭、中横轭以及下横轭；The purpose of this utility model is achieved through the following technical solutions: a 30-pulse self-coupling phase-shifting rectifier transformer, including a frame and a winding; the frame includes an upper yoke, a middle yoke, and a lower yoke parallel to each other;
所述上横轭与中横轭之间设有相互平行的第一芯柱、第二芯柱以及第三芯柱；所述中横轭与下横轭之间设有相互平行的第四芯柱、第五芯柱以及第六芯柱；A first core column, a second core column and a third core column parallel to each other are provided between the upper yoke and the middle yoke; a fourth core column parallel to each other is provided between the middle yoke and the lower yoke a column, a fifth stem, and a sixth stem;
所述绕组包括有U相绕组、V相绕组以及W相绕组；The windings include U-phase windings, V-phase windings and W-phase windings;
所述U相绕组包括有设置在第一芯柱上的绕组U1以及设置在第四芯柱上的绕组U2、绕组U3、绕组U4、绕组U5、绕组U6、绕组U7；所述V相绕组包括有设置在第二芯柱上的绕组V1以及设置在第五芯柱上的绕组V2、绕组V3、绕组V4、绕组V5、绕组V6、绕组V7；所述W相绕组包括有设置在第三芯柱上的绕组W1以及设置在第六芯柱上的绕组W2、绕组W3、绕组W4、绕组W5、绕组W6、绕组W7；The U-phase winding includes a winding U1 arranged on the first stem and a winding U2, a winding U3, a winding U4, a winding U5, a winding U6, and a winding U7 arranged on the fourth stem; the V-phase winding includes There is a winding V1 arranged on the second core and a winding V2, a winding V3, a winding V4, a winding V5, a winding V6 and a winding V7 arranged on the fifth core; The winding W1 on the column and the winding W2, winding W3, winding W4, winding W5, winding W6, and winding W7 arranged on the sixth core column;
所述绕组U1的末端与绕组U2的首端连接；所述绕组U2的末端分别与U3 的首端、绕组V4的末端以及绕组V5的首端连接；所述绕组U3的末端分别与绕组V6的末端以及绕组V7的首端连接；The end of the winding U1 is connected to the head end of the winding U2; the end of the winding U2 is respectively connected to the head end of the U3, the end of the winding V4 and the head end of the winding V5; the end of the winding U3 is respectively connected to the end of the winding V6 The end and the head end of the winding V7 are connected;
所述绕组V1的末端与绕组V2的首端连接；所述绕组V2的末端分别与V3 的首端、绕组W4的末端以及绕组W5的首端连接；所述绕组V3的末端分别与绕组W6的末端以及绕组W7的首端连接；The end of the winding V1 is connected to the head end of the winding V2; the end of the winding V2 is respectively connected to the head end of the V3, the end of the winding W4 and the head end of the winding W5; the end of the winding V3 is respectively connected to the end of the winding W6 The end and the head end of the winding W7 are connected;
所述绕组W1的末端与绕组W2的首端连接；所述绕组W2的末端分别与W3 的首端、绕组U4的末端以及绕组U5的首端连接；所述绕组W3的末端分别与绕组U6的末端以及绕组U7的首端连接。The end of the winding W1 is connected to the head end of the winding W2; the end of the winding W2 is respectively connected to the head end of the W3, the end of the winding U4 and the head end of the winding U5; the end of the winding W3 is respectively connected to the winding U6 The end and the head end of the winding U7 are connected.
本实用新型进一步设置为，所述的第一芯柱、第二芯柱、第三芯柱、第四芯柱、第五芯柱以及第六芯柱均设有气隙。The utility model is further provided that the first stem, the second stem, the third stem, the fourth stem, the fifth stem and the sixth stem are all provided with air gaps.
本实用新型进一步设置为，所述框架还包括有两个分别设于中横轭两侧的旁轭；所述旁轭设于中横轭与下横轭之间。The utility model is further provided that the frame further includes two side yokes respectively arranged on both sides of the middle yoke; the side yokes are arranged between the middle yoke and the lower yoke.
本实用新型进一步设置为，所述绕组U1的首端设有输入口A；绕组U2的首端设有输出口a3；绕组V4的首端设有输出口a2；绕组V5的末端设有输出口a4；绕组V6的首端设有输出口a1；绕组V7的末端设有输出口a5；The utility model is further configured as follows: the head end of the winding U1 is provided with an input port A; the head end of the winding U2 is provided with an output port a3; the head end of the winding V4 is provided with an output port a2; the end of the winding V5 is provided with an output port a4; the first end of the winding V6 is provided with an output port a1; the end of the winding V7 is provided with an output port a5;
所述绕组V1的首端设有输入口B；绕组V2的首端设有输出口b3；绕组 W4的首端设有输出口b2；绕组W5的末端设有输出口b4；绕组W6的首端设有输出口b1；绕组W7的末端设有输出口b5；The head end of the winding V1 is provided with an input port B; the head end of the winding V2 is provided with an output port b3; the head end of the winding W4 is provided with an output port b2; the end of the winding W5 is provided with an output port b4; the head end of the winding W6 There is an output port b1; the end of the winding W7 is provided with an output port b5;
所述绕组W1的首端设有输入口C；绕组W2的首端设有输出口c3；绕组 U4的首端设有输出口c2；绕组U5的末端设有输出口c4。绕组U6的首端设有输出口c1；绕组U7的末端设有输出口c5。The head end of the winding W1 is provided with an input port C; the head end of the winding W2 is provided with an output port c3; the head end of the winding U4 is provided with an output port c2; the end of the winding U5 is provided with an output port c4. The first end of the winding U6 is provided with an output port c1; the end of the winding U7 is provided with an output port c5.
本实用新型进一步设置为，The utility model is further set as,
所述输出口a1输出电压超前输出口a2输出电压的相位12度，所述输出口a2输出电压超前输出口a3输出电压的相位12度，所述输出口a3输出电压超前输出口a4输出电压的相位12度，所述输出口a4输出电压超前输出口 a5输出电压的相位12度；The output voltage of the output port a1 leads the phase of the output voltage of the output port a2 by 12 degrees, the output voltage of the output port a2 leads the phase of the output voltage of the output port a3 by 12 degrees, and the output voltage of the output port a3 leads the output voltage of the output port a4 by 12 degrees. The phase is 12 degrees, and the output voltage of the output port a4 is ahead of the phase of the output voltage of the output port a5 by 12 degrees;
所述输出口b1输出电压超前输出口b2输出电压的相位12度，所述输出口b2输出电压超前输出口b3输出电压的相位12度，所述输出口b3输出电压超前输出口b4输出电压的相位12度，所述输出口b4输出电压超前输出口 b5输出电压的相位12度；The output voltage of the output port b1 leads the phase of the output voltage of the output port b2 by 12 degrees, the output voltage of the output port b2 leads the phase of the output voltage of the output port b3 by 12 degrees, and the output voltage of the output port b3 leads the output voltage of the output port b4 by 12 degrees. The phase is 12 degrees, and the output voltage of the output port b4 is ahead of the phase of the output voltage of the output port b5 by 12 degrees;
所述输出口c1输出电压超前输出口c2输出电压的相位12度，所述输出口c2输出电压超前输出口c3输出电压的相位12度，所述输出口c3输出电压超前输出口c4输出电压的相位12度，所述输出口c4输出电压超前输出口 c5输出电压的相位12度。The output voltage of the output port c1 leads the phase of the output voltage of the output port c2 by 12 degrees, the output voltage of the output port c2 leads the phase of the output voltage of the output port c3 by 12 degrees, and the output voltage of the output port c3 leads the output voltage of the output port c4 by 12 degrees. The phase is 12 degrees, and the output voltage of the output port c4 is ahead of the phase of the output voltage of the output port c5 by 12 degrees.
本实用新型进一步设置为，所述输出口a3输出电压超前输出口b3输出电压的相位120度；所述输出口b3输出电压超前输出口c3输出电压的相位 120度；所述输出口c3输出电压超前输出口a3输出电压的相位120度。The utility model is further set as, the output voltage of the output port a3 leads the phase of the output voltage of the output port b3 by 120 degrees; the output voltage of the output port b3 leads the phase of the output voltage of the output port c3 by 120 degrees; the output voltage of the output port c3 The phase of the output voltage of the leading output port a3 is 120 degrees.
本实用新型进一步设置为，绕组U2的矢量电压、绕组V2的矢量电压以及绕组W2的矢量电压相等；绕组U3的矢量电压、绕组V3的矢量电压以及绕组W3的矢量电压相等；绕组U4的矢量电压、绕组V4的矢量电压以及绕组W4 的矢量电压相等；绕组U5的矢量电压、绕组V5的矢量电压以及绕组W5的矢量电压相等；绕组U6的矢量电压、绕组V6的矢量电压以及绕组W6的矢量电压相等；绕组U7的矢量电压、绕组V7的矢量电压以及绕组W7的矢量电压相等。The utility model is further set as, the vector voltage of winding U2, the vector voltage of winding V2 and the vector voltage of winding W2 are equal; The vector voltage of winding U3, the vector voltage of winding V3 and the vector voltage of winding W3 are equal; The vector voltage of winding U4 , the vector voltage of winding V4 and the vector voltage of winding W4 are equal; the vector voltage of winding U5, the vector voltage of winding V5 and the vector voltage of winding W5 are equal; the vector voltage of winding U6, the vector voltage of winding V6 and the vector voltage of winding W6 Equal; the vector voltage of winding U7, the vector voltage of winding V7 and the vector voltage of winding W7 are equal.
本实用新型进一步设置为，各绕组矢量电压，U2＝V2＝W2＝0.014568U， U3＝V3＝W3＝0.043068U，U4＝V4＝W4＝0.12732U；U5＝V5＝W5＝0.11275U； U6＝V6＝W6＝0.26365U；U7＝V7＝W7＝0.20601U；其中U为网侧输入线电压；所述 U1＝V1＝W1＝kU，其中k取0.04-0.06，即U1＝V1＝W1＝0.04-0.06U。The utility model is further set as, each winding vector voltage, U2=V2=W2=0.014568U, U3=V3=W3=0.043068U, U4=V4=W4=0.12732U; U5=V5=W5=0.11275U; U6= V6=W6=0.26365U; U7=V7=W7=0.20601U; where U is the grid-side input line voltage; the U1=V1=W1=kU, where k is 0.04-0.06, that is, U1=V1=W1=0.04 -0.06U.
本实用新型的有益效果：本实用新型通过上述结构实现在一台变压器上进行30脉波自耦移相，减少了绕组、简化了接线，极大的降低了体积和成本。Beneficial effects of the utility model: the utility model realizes 30-pulse self-coupling phase shifting on a transformer through the above structure, reduces windings, simplifies wiring, and greatly reduces volume and cost.
附图说明Description of drawings
利用附图对实用新型作进一步说明，但附图中的实施例不构成对本实用新型的任何限制，对于本领域的普通技术人员，在不付出创造性劳动的前提下，还可以根据以下附图获得其它的附图。Utilize accompanying drawing to further illustrate the utility model, but the embodiment in the accompanying drawing does not constitute any restriction to the present utility model, for those of ordinary skill in the art, under the premise of not paying creative work, also can obtain according to following accompanying drawing Additional drawings.
图1是本实用新型的结构示意图；Fig. 1 is the structural representation of the utility model;
图2是本实用新型的三相绕组失量图；Fig. 2 is a three-phase winding loss figure of the utility model;
图3是本实用新型A相绕组的失量图；Fig. 3 is the loss diagram of the utility model A-phase winding;
图4是本实用新型各矢量的计算步骤；Fig. 4 is the calculation steps of each vector of the present utility model;
图1至图4中的附图标记说明：Explanation of reference numerals among Fig. 1 to Fig. 4:
101-上横轭；102-中横轭；103-下横轭；201-第一芯柱；202-第二芯柱； 203-第三芯柱；300-旁轭；301-第四芯柱；302-第五芯柱；303-第六芯柱； 400-气隙。101-upper yoke; 102-middle yoke; 103-lower yoke; 201-first stem; 202-second stem; 203-third stem; 300-side yoke; 301-fourth stem ; 302 - fifth stem; 303 - sixth stem; 400 - air gap.
具体实施方式Detailed ways
结合以下实施例对本实用新型作进一步描述。The utility model is further described in conjunction with the following examples.
由图1至图3可知；本实施例所述的一种30脉波自耦移相整流变压器，包括有框架和绕组；所述框架包括有相互平行的上横轭101、中横轭102以及下横轭103；It can be seen from Figures 1 to 3 that a 30-pulse self-coupling phase-shifting rectifier transformer described in this embodiment includes a frame and windings; the frame includes an upper yoke 101, a middle yoke 102 and lower yoke 103;
所述上横轭101与中横轭102之间设有相互平行的第一芯柱201、第二芯柱202以及第三芯柱203；所述中横轭102与下横轭103之间设有相互平行的第四芯柱301、第五芯柱302以及第六芯柱303；A first stem 201 , a second stem 202 and a third stem 203 parallel to each other are arranged between the upper yoke 101 and the middle yoke 102 ; between the middle yoke 102 and the lower yoke 103 There are fourth stem 301, fifth stem 302 and sixth stem 303 parallel to each other;
所述绕组包括有U相绕组、V相绕组以及W相绕组；The windings include U-phase windings, V-phase windings and W-phase windings;
所述U相绕组包括有设置在第一芯柱201上的绕组U1以及设置在第四芯柱301上的绕组U2、绕组U3、绕组U4、绕组U5、绕组U6、绕组U7；所述V 相绕组包括有设置在第二芯柱202上的绕组V1以及设置在第五芯柱302上的绕组V2、绕组V3、绕组V4、绕组V5、绕组V6、绕组V7；所述W相绕组包括有设置在第三芯柱203上的绕组W1以及设置在第六芯柱303上的绕组W2、绕组W3、绕组W4、绕组W5、绕组W6、绕组W7；The U-phase winding includes a winding U1 arranged on the first core 201 and a winding U2, a winding U3, a winding U4, a winding U5, a winding U6, and a winding U7 arranged on the fourth core 301; the V-phase The winding includes a winding V1 arranged on the second core 202 and a winding V2, a winding V3, a winding V4, a winding V5, a winding V6 and a winding V7 arranged on the fifth core 302; the W-phase winding includes a set The winding W1 on the third stem 203 and the winding W2, winding W3, winding W4, winding W5, winding W6, and winding W7 arranged on the sixth stem 303;
所述绕组U1的末端与绕组U2的首端连接；所述绕组U2的末端分别与U3 的首端、绕组V4的末端以及绕组V5的首端连接；所述绕组U3的末端分别与绕组V6的末端以及绕组V7的首端连接；The end of the winding U1 is connected to the head end of the winding U2; the end of the winding U2 is respectively connected to the head end of the U3, the end of the winding V4 and the head end of the winding V5; the end of the winding U3 is respectively connected to the end of the winding V6 The end and the head end of the winding V7 are connected;
所述绕组V1的末端与绕组V2的首端连接；所述绕组V2的末端分别与V3 的首端、绕组W4的末端以及绕组W5的首端连接；所述绕组V3的末端分别与绕组W6的末端以及绕组W7的首端连接；The end of the winding V1 is connected to the head end of the winding V2; the end of the winding V2 is respectively connected to the head end of the V3, the end of the winding W4 and the head end of the winding W5; the end of the winding V3 is respectively connected to the end of the winding W6 The end and the head end of the winding W7 are connected;
所述绕组W1的末端与绕组W2的首端连接；所述绕组W2的末端分别与W3 的首端、绕组U4的末端以及绕组U5的首端连接；所述绕组W3的末端分别与绕组U6的末端以及绕组U7的首端连接。The end of the winding W1 is connected to the head end of the winding W2; the end of the winding W2 is respectively connected to the head end of the W3, the end of the winding U4 and the head end of the winding U5; the end of the winding W3 is respectively connected to the winding U6 The end and the head end of the winding U7 are connected.
相比与传统的延边三角形移相或采用多台移相变压器联合移相并联工作，本实施例的变压器通过上述结构实现在一台变压器上进行30脉波自耦移相，减少了绕组、简化了接线以及极大的降低了成本。Compared with the traditional Yanbian delta phase shifting or using multiple phase shifting transformers to work in parallel with phase shifting, the transformer in this embodiment realizes 30-pulse self-coupling phase shifting on one transformer through the above structure, which reduces the number of windings and simplifies Wiring is simplified and costs are greatly reduced.
本实施例所述的一种30脉波自耦移相整流变压器，所述的第一芯柱201、第二芯柱202、第三芯柱203、第四芯柱301、第五芯柱302以及第六芯柱303 均设有气隙400。通过调整线圈匝数及气隙400大小可方便的调整每个芯柱上的电压失量压降。A 30-pulse self-coupling phase-shifting rectifier transformer described in this embodiment, the first stem 201, the second stem 202, the third stem 203, the fourth stem 301, and the fifth stem 302 And the sixth stem 303 is provided with an air gap 400 . By adjusting the number of turns of the coil and the size of the air gap 400, the voltage drop on each stem can be conveniently adjusted.
本实施例所述的一种30脉波自耦移相整流变压器，所述框架还包括有两个分别设于中横轭102两侧的旁轭300；所述旁轭300设于中横轭102与下横轭103之间。通过设置旁轭300能够使变压器的三相磁路相对独立和对称，确保了三相移相各不相干涉。同样的，通过设置中横轭能够使第一芯柱201、第二芯柱202以及第三芯柱203的绕组与第四芯柱301、第五芯柱302以及第六芯柱303上绕组磁路相对独立，确保了输入端与输出端之间的移相，同时，进一步的降低了整机谐波泄放。In the 30-pulse self-coupling phase-shifting rectifier transformer described in this embodiment, the frame further includes two side yokes 300 respectively arranged on both sides of the middle yoke 102; the side yokes 300 are arranged on the middle yoke 102 and the lower yoke 103. By setting the side yoke 300, the three-phase magnetic circuits of the transformer can be relatively independent and symmetrical, ensuring that the three-phase phase shifts do not interfere with each other. Similarly, the windings of the first core 201, the second core 202, and the third core 203 can be magnetically connected with the windings on the fourth core 301, the fifth core 302, and the sixth core 303 by setting the middle yoke. The circuit is relatively independent, which ensures the phase shift between the input terminal and the output terminal, and at the same time, further reduces the harmonic discharge of the whole machine.
本实施例所述的一种30脉波自耦移相整流变压器，所述绕组U1的首端设有输入口A；绕组U2的首端设有输出口a3；绕组V4的首端设有输出口a2；绕组V5的末端设有输出口a4；绕组V6的首端设有输出口a1；绕组V7的末端设有输出口a5；所述绕组V1的首端设有输入口B；绕组V2的首端设有输出口b3；绕组W4的首端设有输出口b2；绕组W5的末端设有输出口b4；绕组 W6的首端设有输出口b1；绕组W7的末端设有输出口b5；所述绕组W1的首端设有输入口C；绕组W2的首端设有输出口c3；绕组U4的首端设有输出口c2；绕组U5的末端设有输出口c4。绕组U6的首端设有输出口c1；绕组U7的末端设有输出口c5。In the 30-pulse self-coupling phase-shifting rectifier transformer described in this embodiment, the first end of the winding U1 is provided with an input port A; the first end of the winding U2 is provided with an output port a3; the first end of the winding V4 is provided with an output port port a2; the end of winding V5 is provided with output port a4; the head end of winding V6 is provided with output port a1; the end of winding V7 is provided with output port a5; the head end of winding V1 is provided with input port B; The head end is provided with an output port b3; the head end of the winding W4 is provided with an output port b2; the end of the winding W5 is provided with an output port b4; the head end of the winding W6 is provided with an output port b1; the end of the winding W7 is provided with an output port b5; The head end of the winding W1 is provided with an input port C; the head end of the winding W2 is provided with an output port c3; the head end of the winding U4 is provided with an output port c2; the end of the winding U5 is provided with an output port c4. The first end of the winding U6 is provided with an output port c1; the end of the winding U7 is provided with an output port c5.
本实施例所述的一种30脉波自耦移相整流变压器，所述输出口a1输出电压超前输出口a2输出电压的相位12度，所述输出口a2输出电压超前输出口a3输出电压的相位12度，所述输出口a3输出电压超前输出口a4输出电压的相位12度，所述输出口a4输出电压超前输出口a5输出电压的相位12 度；所述输出口b1输出电压超前输出口b2输出电压的相位12度，所述输出口b2输出电压超前输出口b3输出电压的相位12度，所述输出口b3输出电压超前输出口b4输出电压的相位12度，所述输出口b4输出电压超前输出口 b5输出电压的相位12度；所述输出口c1输出电压超前输出口c2输出电压的相位12度，所述输出口c2输出电压超前输出口c3输出电压的相位12度，所述输出口c3输出电压超前输出口c4输出电压的相位12度，所述输出口c4 输出电压超前输出口c5输出电压的相位12度。本实施例所述的一种30脉波自耦移相整流变压器，绕组U2的矢量电压、绕组V2的矢量电压以及绕组W2 的矢量电压相等；绕组U3的矢量电压、绕组V3的矢量电压以及绕组W3的矢量电压相等；绕组U4的矢量电压、绕组V4的矢量电压以及绕组W4的矢量电压相等；绕组U5的矢量电压、绕组V5的矢量电压以及绕组W5的矢量电压相等；绕组U6的矢量电压、绕组V6的矢量电压以及绕组W6的矢量电压相等；绕组U7的矢量电压、绕组V7的矢量电压以及绕组W7的矢量电压相等。In the 30-pulse self-coupling phase-shifting rectifier transformer described in this embodiment, the output voltage of the output port a1 is ahead of the phase of the output voltage of the output port a2 by 12 degrees, and the output voltage of the output port a2 is ahead of the output voltage of the output port a3 by 12 degrees. Phase 12 degrees, the output voltage of the output port a3 leads the phase of the output voltage of the output port a4 by 12 degrees, the output voltage of the output port a4 leads the phase of the output voltage of the output port a5 by 12 degrees; the output voltage of the output port b1 leads the output port The phase of the output voltage of b2 is 12 degrees, the output voltage of the output port b2 is 12 degrees ahead of the phase of the output voltage of the output port b3, the output voltage of the output port b3 is 12 degrees ahead of the phase of the output voltage of the output port b4, and the output of the output b4 The voltage leads the phase of the output voltage of the output port b5 by 12 degrees; the output voltage of the output port c1 leads the phase of the output voltage of the output port c2 by 12 degrees, and the output voltage of the output port c2 leads the phase of the output voltage of the output port c3 by 12 degrees. The output voltage of the output port c3 leads the phase of the output voltage of the output port c4 by 12 degrees, and the output voltage of the output port c4 leads the phase of the output voltage of the output port c5 by 12 degrees. In the 30-pulse self-coupling phase-shifting rectifier transformer described in this embodiment, the vector voltage of winding U2, the vector voltage of winding V2, and the vector voltage of winding W2 are equal; the vector voltage of winding U3, the vector voltage of winding V3, and the winding The vector voltage of W3 is equal; the vector voltage of winding U4, the vector voltage of winding V4 and the vector voltage of winding W4 are equal; the vector voltage of winding U5, the vector voltage of winding V5 and the vector voltage of winding W5 are equal; the vector voltage of winding U6, The vector voltage of winding V6 and the vector voltage of winding W6 are equal; the vector voltage of winding U7, the vector voltage of winding V7 and the vector voltage of winding W7 are equal.
进一步的，各绕组的矢量电压关系为，U2＝V2＝W2＝0.014568U，U3＝V3＝W3＝0.043068U，U4＝V4＝W4＝0.12732U；U5＝V5＝W5＝0.11275U； U6＝V6＝W6＝0.26365U；U7＝V7＝W7＝0.20601U；其中U为网侧输入线电压；所述 U1＝V1＝W1＝kU，其中k取0.04-0.06，即U1＝V1＝W1＝0.04-0.06U。Further, the vector voltage relationship of each winding is: U2=V2=W2=0.014568U, U3=V3=W3=0.043068U, U4=V4=W4=0.12732U; U5=V5=W5=0.11275U; U6=V6 =W6=0.26365U; U7=V7=W7=0.20601U; where U is the grid-side input line voltage; the U1=V1=W1=kU, where k is 0.04-0.06, that is, U1=V1=W1=0.04- 0.06U.
在进行变压的时候，输入口A、输入口B以及输入口C与网侧进行连接；如图2所示，同时使得绕组的各矢量电压U1＝V1＝W1，U2＝V2＝W2，U3＝V3＝W3， U4＝V4＝W4，U5＝V5＝W5，U6＝V6＝W6，U7＝V7＝W7。输出端口a1、a2、a3、a4、 a5相对于网侧相位中心点o依次分别移相12度；输出端口b1、b2、b3、b4、 b5相对于网侧相位中心点o依次分别移相12度；输出端口c1、c2、c3、c4、 c5相对于网侧相位名义中心点o依次分别移相12度，实现了30脉波自耦移相的功能。能够抑制变压器输出电压的畸变，可以消除3倍次及5、7、9、11、 13、15、17、19次等谐波，极大的改善二次侧谐波对其一次侧电网造成的影响；同时，各绕组为感性连接，除自身损耗外，并不侵占变压器实际容量。When performing voltage transformation, the input port A, input port B, and input port C are connected to the grid side; as shown in Figure 2, at the same time, the vector voltages of the windings U1=V1=W1, U2=V2=W2, U3 =V3=W3, U4=V4=W4, U5=V5=W5, U6=V6=W6, U7=V7=W7. The output ports a1, a2, a3, a4, a5 are phase-shifted by 12 degrees relative to the grid-side phase center point o; the output ports b1, b2, b3, b4, b5 are phase-shifted by 12 degrees respectively relative to the grid-side phase center point o degrees; the output ports c1, c2, c3, c4, c5 are phase-shifted by 12 degrees respectively relative to the nominal center point o of the grid-side phase, realizing the function of 30-pulse self-coupling phase-shifting. It can suppress the distortion of the output voltage of the transformer, and can eliminate the harmonics of 3 times and 5, 7, 9, 11, 13, 15, 17, 19, etc., and greatly improve the damage caused by the secondary side harmonics to the primary side grid At the same time, each winding is inductively connected, except for its own loss, it does not occupy the actual capacity of the transformer.
进一步的，如图3、4所示，上述结构便于得出各个绕组的各自失量电压，具体算法步骤如下：Further, as shown in Figures 3 and 4, the above-mentioned structure is convenient for obtaining the respective vector voltages of each winding, and the specific algorithm steps are as follows:
步骤1,求失量a1-a3、a2-a3；Step 1, find the loss amount a1-a3, a2-a3;
在等腰矢量三角形a1-a3-o中，底边长在等腰矢量三角形a2-a3-o中，底边长其中U为网侧输入线电压；In the isosceles vector triangle a1-a3-o, the base length In the isosceles vector triangle a2-a3-o, the length of the base is Where U is the input line voltage of the grid side;
步骤2，求失量a1-m、a2-e；Step 2, find the lost quantities a1-m, a2-e;
设失量o-a3与失量a1-a5交叉于m点，在直角矢量三角形a1-m-o中，直角边设失量o-a3与失量a2-a4交叉于e点，在直角矢量三角形a2-e-o中，直角边Assuming that the quantity o-a3 and the quantity a1-a5 intersect at point m, in the right-angled vector triangle a1-mo, the right-angled side Let the quantity o-a3 intersect with the quantity a2-a4 at point e, in the right-angled vector triangle a2-eo, the right-angled side
步骤3，求失量a3-m、a3-e；Step 3, find the lost quantities a3-m, a3-e;
在直角矢量三角形a1-a3-m中,直角边在直角矢量三角形a2-a3-e中,直角边In a right vector triangle a1-a3-m, the side In the right-angled vector triangle a2-a3-e, the right-angled side
步骤4，求失量a3-n、m-n及a3-f、e-f；Step 4, find loss a3-n, m-n and a3-f, e-f;
设失量U3与失量a1-a5交叉于n点，在直角矢量三角形a3-n-m中,∠ a3-n-m＝60°，斜边设失量U2与失量a2-a4交叉于e点，在直角矢量三角形a3-e-f中,∠a3-e-f＝60°，Suppose the quantity U3 and the quantity a1-a5 intersect at point n, in the right angle vector triangle a3-nm, ∠a3-nm=60°, the hypotenuse Suppose the quantity U2 intersects with the quantity a2-a4 at point e, in the right angle vector triangle a3-ef, ∠a3-ef=60°,
步骤5，求失量a1-n即V6、n-a5即V7；求失量a2-f即V4、f-a4即V5；Step 5, find the loss amount a1-n is V6, n-a5 is V7; find the loss amount a2-f is V4, f-a4 is V5;
在失量a1-a5的直线上，a1-n即V6＝(a1-m)+(m-n)，n-a5即 V7＝(a1-m)-(m-n)；在失量a2-a4的直线上，a2-e即V4＝(a2-e)+(e-f)，f-a4即 V5＝(a2-e)-(e-f)；On the straight line of loss a1-a5, a1-n is V6=(a1-m)+(m-n), and n-a5 is V7=(a1-m)-(m-n); on the straight line of loss a2-a4 On, a2-e is V4=(a2-e)+(e-f), f-a4 is V5=(a2-e)-(e-f);
步骤6，求失量U2、U3；Step 6, find the lost quantities U2, U3;
在失量a3-n的直线上，U2＝a3-f；U3＝(a3-n)-U2；On the straight line of loss a3-n, U2=a3-f; U3=(a3-n)-U2;
通过以上步骤1～6可以得出，各绕组矢量电压，U2＝V2＝W2＝0.014568U， U3＝V3＝W3＝0.043068U，U4＝V4＝W4＝0.12732U；U5＝V5＝W5＝0.11275U； U6＝V6＝W6＝0.26365U；U7＝V7＝W7＝0.20601U；其中U为网侧输入线电压；所述 U1＝V1＝W1＝kU，其中k取0.04-0.06，即U1＝V1＝W1＝0.04-0.06U。Through the above steps 1~6, it can be obtained that the vector voltage of each winding, U2=V2=W2=0.014568U, U3=V3=W3=0.043068U, U4=V4=W4=0.12732U; U5=V5=W5=0.11275U ; U6=V6=W6=0.26365U; U7=V7=W7=0.20601U; where U is the grid side input line voltage; said U1=V1=W1=kU, where k is 0.04-0.06, that is, U1=V1= W1 = 0.04-0.06U.
最后应当说明的是，以上实施例仅用以说明本实用新型的技术方案，而非对本实用新型保护范围的限制，尽管参照较佳实施例对本实用新型作了详细地说明，本领域的普通技术人员应当理解，可以对本实用新型的技术方案进行修改或者等同替换，而不脱离本实用新型技术方案的实质和范围。Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than limiting the protection scope of the present utility model. Although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art Personnel should understand that the technical solution of the utility model can be modified or equivalently replaced without departing from the essence and scope of the technical solution of the utility model.
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