WO2021109289A1 - 一种多流制牵引变压器以及一种轨道车辆 - Google Patents
一种多流制牵引变压器以及一种轨道车辆 Download PDFInfo
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- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
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- the invention relates to the technical field of traction transformers, in particular to a multi-stream traction transformer and a rail vehicle.
- Multi-stream traction transformer is a kind of traction transformer that can be applied to multiple standards, so it has been widely used in the field of rail transit.
- a multi-current traction transformer is generally composed of two high-voltage windings, two traction windings and two additional windings.
- the two additional windings are arranged on the outside of the core, and the two high-voltage windings are respectively arranged on the outside of the core.
- the two traction windings are respectively arranged on the outside of the two high voltage windings.
- the purpose of the present invention is to provide a multi-current traction transformer and a rail vehicle to improve the compactness of the multi-current traction transformer and reduce the volume and weight of the space occupied by the multi-current traction transformer.
- the specific plan is as follows:
- a multi-stream traction transformer includes: an iron core having two iron core legs, two additional windings are arranged on the outside of each iron core leg, and a traction winding is arranged on the outside of each additional winding, In addition, a high-voltage winding is arranged outside each traction winding.
- an auxiliary winding is also arranged outside each of the high-voltage windings.
- it also includes:
- a DC reactor used to provide additional inductance for the additional winding and/or the traction winding and/or the auxiliary winding.
- the high-voltage winding, the traction winding and the additional winding are all layered windings.
- the high-voltage winding and/or the traction winding and/or the additional winding are provided with a first winding oil passage for accommodating insulating oil.
- the additional winding and/or the traction winding are windings made of transposed wires.
- the transposition wire is a wire made of electrolytic copper.
- a second winding oil passage for accommodating insulating oil is provided between two adjacent target windings; wherein, the target winding is one of the traction winding, the additional winding or the high-voltage winding Any kind of winding.
- an insulating stay is provided between two adjacent target windings.
- the present invention also discloses a rail vehicle, including a multi-stream traction transformer as disclosed above.
- each traction winding is arranged on the outside of each additional winding, and each high voltage winding is arranged on the outside of each traction winding.
- the rail vehicle provided by the present invention also has the above-mentioned beneficial effects.
- Figure 1 is a structural diagram of a multi-current traction transformer provided by an embodiment of the present invention.
- Fig. 2 is a structural diagram of another multi-current traction transformer provided by an embodiment of the present invention.
- FIG. 1 is a structural diagram of a multi-stream traction transformer provided by an embodiment of the present invention.
- the multi-stream traction transformer includes an iron core having two iron core legs 10, each of which is Two additional windings 11 are arranged on the outer side of the core leg 10, a traction winding 12 is arranged on the outer side of each additional winding 11, and a high-voltage winding 13 is arranged on the outer side of each traction winding 12.
- a new type of multi-current traction transformer is provided, through which the requirements of different power supply systems can be met simultaneously.
- the multi-stream traction transformer first, a core with two core legs 10 is provided, and then two additional windings 11 are arranged on the outside of each core leg 10, and one is placed on the outside of each additional winding 11 The traction winding 12, and finally, a high-voltage winding 13 is arranged outside each traction winding 12. That is, in the multi-current traction transformer provided by this embodiment, two additional windings 11, two traction windings 12, and two high-voltage windings 13 are sequentially arranged on each core leg 10. Then, in the There are four additional windings 11, four traction windings 12, and four high-voltage windings 13 in the multi-current traction transformer.
- the two cores of the multi-current traction transformer in Figure 1 are arranged in a symmetrical front-to-back direction, that is, The multi-current traction transformer in Figure 1 only presents one side of the symmetrical windings, and the arrangement of the windings on the other side is the same as that of the side, which will not be described in detail here.
- the two iron core posts 10 of the iron core can also be arranged in a symmetrical distribution or up and down, which is not specifically limited here.
- the high-voltage winding 13 and the traction winding 12 in the multi-current traction transformer work; when the voltage of AC15kV/16.7Hz is the multi-current traction transformer When the traction transformer supplies power, the high-voltage winding 13, the traction winding 12, and the additional winding 11 in the multi-current traction transformer will work; when the voltage of DC 3kV supplies power to the multi-current traction transformer, the multi-current traction transformer Two traction windings 12 on the same iron core column 10 are connected in reverse series and used as a smoothing reactor; when the voltage of DC1.5kV supplies power to the multi-current traction transformer, the same Two traction windings 12 on one iron core column 10 are connected in parallel for use as a smoothing reactor.
- the multi-current traction transformer provided by this embodiment can work under different power supply modes, so that the multi-current traction transformer can be applied in different practical application scenarios.
- the multi-current traction transformer provided by this embodiment since the traction winding 12 is arranged between the additional winding 11 and the high-voltage winding 13, that is, the high-voltage winding 13 is arranged outside the traction winding 12. In this way, in the process of arranging the windings, it is only necessary to focus on the electrical distance between the traction winding 12 and the high-voltage winding 13, thereby relatively reducing the electrical distance between the windings in the multi-current traction transformer.
- the structure of the multi-current traction transformer can be made more compact, thereby further reducing the space volume and weight occupied by the multi-current traction transformer.
- the winding positions of the additional winding 11 and the traction winding 12 may be interchanged according to different actual situations, and no detailed description will be given here.
- each traction winding is arranged on the outside of each additional winding, and each high voltage winding is arranged on the outside of each traction winding.
- FIG. 2 is a structural diagram of another multi-current traction transformer provided by an embodiment of the present invention.
- an auxiliary winding 14 is further arranged outside each of the high-voltage windings 13.
- each high-voltage winding 13 One auxiliary winding 14 is arranged on the outer side of, that is, four auxiliary windings 14 are arranged on the outer side of the four high-voltage windings 13 of the multi-current traction transformer.
- the auxiliary power supply requirements of the system can be met under AC25kV/50Hz and AC15kV/16.7Hz working conditions. At the same time, it can meet the requirements of the system's auxiliary power supply at DC3kV and DC1.5kV.
- the inductance value that the multi-current traction transformer can provide can be increased. For example: when DC3kV and DC1.5kV are used to supply power to the multi-current traction transformer, if the traction transformer is required to provide a larger inductance value, the auxiliary winding 14 can also be added to the additional winding 11 and the traction winding 12 work. At this time, the auxiliary winding 14 can provide a larger inductance value for the multi-current traction transformer.
- the inductance value that the multi-current traction transformer can provide can be increased.
- FIG. 2 is a structural diagram of another multi-current traction transformer provided by an embodiment of the present invention.
- the above-mentioned multi-current traction transformer further includes:
- a DC reactor 15 for providing additional inductance value for the additional winding 11 and/or the traction winding 12 and/or the auxiliary winding 13.
- the multi-current traction transformer is also provided to provide additional winding 11 and/or traction winding 12 and/or auxiliary winding 13 DC reactor 15 with additional inductance value.
- the DC reactor 15 can be independently arranged in the multi-current traction transformer.
- the auxiliary winding 14, additional winding 11 and traction winding 12 cannot provide this
- the inductance value in this case, the two additional windings 11, the traction winding 12, the two auxiliary windings 14 and the DC reactor 15 on the same core leg 10 in the multi-current traction transformer can be connected in series or in parallel as Smoothing reactor is used. As a result, the inductance value provided by the multi-current traction transformer can be further increased.
- one DC reactor 15 can be added to the multi-current traction transformer, or multiple DC reactors 15 can be added to the multi-current traction transformer, as long as the actual application purpose can be achieved. , There is no specific limitation here.
- the inductance value that the multi-current traction transformer can provide can be further increased.
- this embodiment further illustrates and optimizes the technical solution.
- the high-voltage winding 13, the traction winding 12, and the additional winding 11 are all layered windings.
- the four high-voltage windings 13, the four traction windings 12, and the four additional windings 11 in the multi-current traction transformer are all set as layered windings. , That is, the turns of each winding are arranged in sequence along the axial direction and continuously wound. Obviously, the winding structure of this structure can make the structure of each winding more compact, thereby further improving the structure compactness of the multi-current traction transformer.
- this embodiment further illustrates and optimizes the technical solution.
- the interiors of the high-voltage winding 13 and/or the traction winding 12 and/or the additional winding 11 are both A first winding oil passage for accommodating insulating oil is provided.
- the heat dissipation efficiency of the traction transformer is that a first winding oil passage for containing insulating oil is provided inside each of the high-voltage winding 13, the traction winding 12 and the additional winding 11.
- the insulating oil in the first winding oil passage can be used to quickly take away the heat generated by each winding and discharge it.
- the heat dissipation capacity of the multi-current traction transformer can be relatively improved.
- this embodiment further illustrates and optimizes the technical solution.
- the additional winding 11 and/or the traction winding 12 are windings made of transposed wires.
- each additional winding 11 and/or traction winding 12 in the multi-current traction transformer provided by this embodiment is made of transposed wires, because the transposed wires can not only greatly reduce the eddy current loss, but also Reduce the temperature rise of the hot spot of the winding, so through this setting method, the power loss rate of the multi-current traction transformer can be relatively reduced.
- each auxiliary winding 14 in the multi-current traction transformer can also be set as a winding composed of transposed wires, which not only makes the structure of the multi-current traction transformer more regular, but also, The structure compactness of the multi-current traction transformer can also be further improved.
- the transposition wire is a wire made of electrolytic copper.
- the transposition wire in this embodiment is made of electrolytic copper. Because electrolytic copper has strong conductivity, conductivity, corrosion resistance and fatigue resistance, when the transposition wire is set to When the wire is made of electrolytic copper, the reliability and safety of the multi-current traction transformer during use can be relatively improved.
- this embodiment further illustrates and optimizes the technical solution.
- a second winding oil passage for accommodating insulating oil is provided between two adjacent target windings;
- the target winding is any one of the traction winding 12, the additional winding 11, or the high-voltage winding 13.
- a second winding oil passage for accommodating insulating oil can also be provided between each winding, that is, a second winding oil passage for accommodating insulating oil is provided between each traction winding 12, the additional winding 11, and the high-voltage winding 13 The second winding oil passage of insulating oil.
- insulating stays are arranged between the two adjacent target windings.
- the present invention also discloses a rail vehicle, including a multi-stream traction transformer as disclosed above.
- the multi-stream traction transformer provided by this embodiment does not need to occupy much space and volume, when the multi-stream traction transformer is installed in a rail vehicle, the miniaturization and light weight of the rail vehicle can also be facilitated. Quantitative design.
- the rail vehicle provided by the embodiment of the present invention has the beneficial effects of the multi-current traction transformer disclosed above.
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Abstract
一种多流制牵引变压器，包括：铁心，铁心具有两个铁心柱，每一个铁心柱的外侧布置有两个附加绕组，每一个附加绕组的外侧布置有一个牵引绕组，并且，每一个牵引绕组的外侧布置有一个高压绕组。显然，在该多流制牵引变压器中，由于是将牵引绕组布置在附加绕组的外侧，并将高压绕组是布置在牵引绕组的外侧，这样就只需要重点考虑高压绕组与牵引绕组之间的电气距离，而无需对牵引绕组和附加绕组之间的电气距离进行特殊考虑，这样就可以显著提高多流制牵引变压器的结构紧凑度，并且，也可以降低多流制牵引变压器所占用的空间体积和重量，以及多流制牵引变压器的设计成本。
Description
本申请要求于2019年12月06日提交中国专利局、申请号为201911240607.6、发明名称为“一种多流制牵引变压器以及一种轨道车辆”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
本发明涉及牵引变压器技术领域，特别涉及一种多流制牵引变压器以及一种轨道车辆。
多流制牵引变压器是一种能够适用于多种制式的牵引变压器，所以，在轨道交通领域中得到了较为广泛的应用。
在现有技术中，多流制牵引变压器一般是由两个高压绕组、两个牵引绕组和两个附加绕组所组成，其中，两个附加绕组布置在铁心的外侧，两个高压绕组分别布置在两个附加绕组的外侧，两个牵引绕组分别布置在两个高压绕组的外侧。显然，此种绕组结构的多流制牵引变压器因为高压绕组布置在附加绕组和牵引绕组之间，所以，就需要在高压绕组和附加绕组之间、以及高压绕组和牵引绕组之间设置较大的电气隔离来保证多流制牵引变压器的安全、稳定运行，但是，这样就会导致多流制牵引变压器的结构松散，并使得多流制牵引变压器需要占用较多的空间体积和重量。目前，针对这一问题，还没有较为有效的解决办法。
由此可见，如何进一步提高多流制牵引变压器的结构紧凑度，以降低多流制牵引变压器所占用的空间体积和重量，是本领域技术人员亟待解决的技术问题。
发明内容
有鉴于此，本发明的目的在于提供一种多流制牵引变压器以及一种轨道车辆，以提高多流制牵引变压器的结构紧凑度，并降低多流制牵引变压器所占用的空间体积和重量。其具体方案如下：
一种多流制牵引变压器，包括：铁心，所述铁心具有两个铁心柱，每一个所述铁心柱的外侧布置有两个附加绕组，每一个所述附加绕组的外侧布置有一个牵引绕组，并且，每一个所述牵引绕组的外侧布置有一个高压绕组。
优选的，每一个所述高压绕组的外侧还布置有一个辅助绕组。
优选的，还包括：
用于为所述附加绕组和/或所述牵引绕组和/或所述辅助绕组提供附加电感值的直流电抗器。
优选的，所述高压绕组、所述牵引绕组和所述附加绕组均为层式绕组。
优选的，所述高压绕组和/或所述牵引绕组和/或所述附加绕组的内部均设置有用于容置绝缘油的第一绕组油道。
优选的，所述附加绕组和/或所述牵引绕组为由换位导线所制成的绕组。
优选的，所述换位导线为由电解铜所制成的导线。
优选的，相邻的两个目标绕组之间均设置有用于容置绝缘油的第二绕组油道；其中，所述目标绕组为所述牵引绕组、所述附加绕组或所述高压绕组中的任意一种绕组。
优选的，相邻的两个所述目标绕组之间均设置有绝缘撑条。
相应的，本发明还公开了一种轨道车辆，包括如前述所公开的一种多流制牵引变压器。
可见，在本发明中，首先是设置一个具有两个铁心柱的铁心，然后，再在每一个铁心柱的外侧布置两个附加绕组，之后，再在每一个附加绕组的外侧布置一个牵引绕组，最后，再在每一个牵引绕组的外侧布置一个高压绕组。显然，在本发明所提供的多流制牵引变压器中，由于是将每一个牵引绕组布置在每一个附加绕组的外侧，并将每一个高压绕组是布置在每一个牵引绕组的外侧，这样在布置绕组的过程中，就只需要重点考虑高压绕组与牵引绕组之间的电气距离，而无需对牵引绕组和附加绕组之间的电气距离进行特殊考虑，由此就可以减小多流制牵引变压器中各个绕组之间的电气距离。这样就可以显著提高多流制牵引变压器的结构紧凑度，并且， 也可以降低多流制牵引变压器所占用的空间体积和重量。相应的，本发明所提供的一种轨道车辆同样具有上述有益效果。
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据提供的附图获得其他的附图。
图1为本发明实施例所提供的一种多流制牵引变压器的结构图；
图2为本发明实施例所提供的另一种多流制牵引变压器的结构图。
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，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，都属于本发明保护的范围。
请参见图1，图1为本发明实施例所提供的一种多流制牵引变压器的结构图，该多流制牵引变压器包括：铁心，所述铁心具有两个铁心柱10，每一个所述铁心柱10的外侧布置有两个附加绕组11，每一个所述附加绕组11的外侧布置有一个牵引绕组12，并且，每一个所述牵引绕组12的外侧布置有一个高压绕组13。
在本实施例中，是提供了一种新型的多流制牵引变压器，通过该多流制牵引变压器可以同时满足不同的供电制式需求。在该多流制牵引变压器中，首先是设置一个具有两个铁心柱10的铁心，然后，在每一个铁心柱10的外侧布置两个附加绕组11，并在每一个附加绕组11的外侧布置一个牵引绕组12，最后，再在每一个牵引绕组12的外侧布置一个高压绕组13。也即，在本实施例所提供的多流制牵引变压器中，是在每一个铁心柱10上依次设置有两个附加绕组11、两个牵引绕组12和两个高压绕组13，那 么，在该多流制牵引变压器中一共是有四个附加绕组11、四个牵引绕组12和四个高压绕组13。
请参见图1，在实际应用中，为了使得多流制牵引变压器的结构更为紧凑，是将图1中的多流制牵引变压器中的两个铁心是呈对称的前后方向进行排列，也即，图1中多流制牵引变压器所呈现只是对称绕组的一侧，另一侧绕组的排列方法与该侧相同，此处不作具体赘述。当然，在实际应用中，还可以将铁心的两个铁心柱10呈左右对称分布排列，或呈上下对称排列，此处不作具体限定。
具体的，当AC25kV/50Hz的电压为该多流制牵引变压器进行供电时，该多流制牵引变压器中的高压绕组13和牵引绕组12进行工作；当AC15kV/16.7Hz的电压为该多流制牵引变压器进行供电时，该多流制牵引变压器中的高压绕组13、牵引绕组12和附加绕组11会进行工作；当DC3kV的电压为该多流制牵引变压器进行供电时，该多流制牵引变压器中同一个铁心柱10上两个牵引绕组12进行反向串联，作为平波电抗器进行使用；当DC1.5kV的电压为该多流制牵引变压器进行供电时，该多流制式牵引变压器中同一个铁心柱10上的两个牵引绕组12并联作为平波电抗器使用。
显然，通过本实施例所提供的多流制牵引变压器可以在不同的供电制式下进行工作，这样就可以使得多流制牵引变压器能够应用在不同的实际应用场景中。而且，在本实施例所提供的多流制牵引变压器中，由于是将牵引绕组12布置在附加绕组11和高压绕组13的中间，也即，是将高压绕组13布置在牵引绕组12的外侧，这样在布置绕组的过程中，只需要重点考虑牵引绕组12和高压绕组13之间的电气距离即可，由此就可以相对减少多流制牵引变压器中各个绕组之间的电气距离。这样就可以使得多流制牵引变压器的结构更加紧凑，由此就可以进一步减少多流制牵引变压器所占用的空间体积和重量。此外，在实际应用中，还可以根据实际情况的不同，将附加绕组11和牵引绕组12的绕制位置进行互换，此处不作具体赘述。
可见，在本实施例中，首先是设置一个具有两个铁心柱的铁心，然后，再在每一个铁心柱的外侧布置两个附加绕组，之后，再在每一个附加绕组 的外侧布置一个牵引绕组，最后，再在每一个牵引绕组的外侧布置一个高压绕组。显然，在本实施例所提供的多流制牵引变压器中，由于是将每一个牵引绕组布置在每一个附加绕组的外侧，并将每一个高压绕组是布置在每一个牵引绕组的外侧，这样在布置绕组的过程中，就只需要重点考虑高压绕组与牵引绕组之间的电气距离，而无需对牵引绕组和附加绕组之间的电气距离进行特殊考虑，由此就可以减少多流制牵引变压器中各个绕组之间的电气距离。这样就可以显著提高多流制牵引变压器的结构紧凑度，并且，也可以降低多流制牵引变压器所占用的空间体积和重量。
基于上述实施例，本实施例对技术方案作进一步的说明与优化，请参见图2，图2为本发明实施例所提供的另一种多流制牵引变压器的结构图。作为一种优选的实施方式，每一个所述高压绕组13的外侧还布置有一个辅助绕组14。
可以理解的是，在实际生活中，经常会遇到系统需要多流制牵引变压器提供辅助绕组的应用场景，所以，在本实施例中，为了满足此种应用需求，还在每一个高压绕组13的外侧布置了一个辅助绕组14，也即，在该多流制牵引变压器的四个高压绕组13的外侧分别布置了四个辅助绕组14。
能够想到的是，当在多流制牵引变压器中设置了辅助绕组14之后，在AC25kV/50Hz和AC15kV/16.7Hz两种工况下满足系统辅助供电要求，同时在DC3kV和DC1.5kV两种工况下，可以增加多流制牵引变压器所能够提供的电感值。比如：当DC3kV和DC1.5kV两种电压为该多流制牵引变压器进行供电时，如果需要该牵引变压器提供较大的电感值时，则可以将辅助绕组14也加入附加绕组11和牵引绕组12的工作。此时，就可以通过辅助绕组14为多流制牵引变压器提供较大的电感值。
显然，通过本实施例所提供的技术方案，可以增加多流制牵引变压器所能够提供的电感值。
请参见图2，图2为本发明实施例所提供的另一种多流制牵引变压器的结构图。作为一种优选的实施方式，上述多流制牵引变压器还包括：
用于为附加绕组11和/或牵引绕组12和/或辅助绕组13提供附加电感值的直流电抗器15。
在本实施例中，为了进一步增加多流制牵引变压器所能够提供的电感值，还在多流制牵引变压器中设置了用于为附加绕组11和/或牵引绕组12和/或辅助绕组13提供附加电感值的直流电抗器15。具体的，在实际应用中，可以将直流电抗器15独立的设置在该多流制牵引变压器中。
当由DC3kV或DC1.5kV的电压为多流制牵引变压器进行供电时，如果需要多流制牵引变压器提供更大的电感值，而通过辅助绕组14、附加绕组11和牵引绕组12工作无法提供该电感值时，在此情况下，就可以将多流制牵引变压器中同一个铁心柱10上的两个附加绕组11、牵引绕组12、两个辅助绕组14和直流电抗器15进行串联或并联作为平波电抗器进行使用。由此就可以进一步增加多流制牵引变压器所能够提供的电感值。
需要说明的是，在实际应用中，可以在多流制牵引变压器中增加一个直流电抗器15，也可以在多流制牵引变压器中增加多个直流电抗器15，只要能够达到实际应用目的即可，此处不作具体限定。
显然，通过本实施例所提供的技术方案，可以进一步增加多流制牵引变压器所能够提供的电感值。
显然，通过本实施例所提供的技术方案，可以进一步提高多流制牵引变压器在实际生活中的应用范围。
基于上述实施例，本实施例对技术方案作进一步的说明与优化，作为一种优选的实施方式，所述高压绕组13、所述牵引绕组12和所述附加绕组11均为层式绕组。
具体的，在本实施例所提供的多流制牵引变压器中，是将该多流制牵引变压器中的4个高压绕组13、4个牵引绕组12和4个附加绕组11均设置为层式绕组，也即，将各个绕组的线匝沿其轴向依次排列连续绕制。显然，通过此种结构的绕组绕制方式可以使得各个绕组的结构更加紧凑，由此就可以进一步提高多流制牵引变压器的结构紧凑度。
基于上述实施例，本实施例对技术方案作进一步的说明与优化，作为一种优选的实施方式，所述高压绕组13和/或所述牵引绕组12和/或所述附加绕组11的内部均设置有用于容置绝缘油的第一绕组油道。
可以理解的是，多流制牵引变压器在实际使用过程中，不可避免的会产生热量，而产生热量会严重影响多流制牵引变压器的正常运行，所以，在本实施例中，为了提高多流制牵引变压器的散热效率，是在各个高压绕组13、牵引绕组12和附加绕组11的内部设置了用于容置绝缘油的第一绕组油道。
显然，当在各个高压绕组13、牵引绕组12和附加绕组11的内部设置了第一绕组油道时，就可以利用第一绕组油道中的绝缘油快速地将各个绕组所产生的热量带走排出到多流制牵引变压器的外部，由此就可以相对提高多流制牵引变压器的散热能力。
基于上述实施例，本实施例对技术方案作进一步的说明与优化，作为一种优选的实施方式，所述附加绕组11和/或所述牵引绕组12为由换位导线所制成的绕组。
具体的，本实施例所提供的多流制牵引变压器中的各个附加绕组11和/或牵引绕组12是由换位导线所制成，因为换位导线不仅可以大幅降低涡流损耗，而且，还可以降低绕组的热点温升，所以，通过此种设置方式，就可以相对降低多流制牵引变压器的功率损耗率。
当然，在实际应用中，还可以将多流制牵引变压器中的各个辅助绕组14也设置为由换位导线所组成的绕组，这样不仅可以使得多流制牵引变压器的结构更为规整，而且，也可以进一步提高多流制牵引变压器的结构紧凑度。
作为一种优选的实施方式，所述换位导线为由电解铜所制成的导线。
具体的，本实施例中的换位导线是由电解铜所制成，因为电解铜具有较强的导电性、导势性、耐腐蚀性以及耐疲劳性，所以，当将换位导线设置为由电解铜所制成的导线时，就可以相对提高多流制牵引变压器在使用过程中的可靠性和安全性。
基于上述实施例，本实施例对技术方案作进一步的说明与优化，作为一种优选的实施方式，相邻的两个目标绕组之间均设置有用于容置绝缘油的第二绕组油道；
其中，所述目标绕组为所述牵引绕组12、所述附加绕组11或所述高压绕组13中的任意一种绕组。
在本实施例中，还可以在各个绕组之间设置用于容置绝缘油的第二绕组油道，也即，在各个牵引绕组12、附加绕组11和高压绕组13之间设置用于容置绝缘油的第二绕组油道。
能够想到的是，当在各个牵引绕组12、附加绕组11和高压绕组13中设置用于容置绝缘油的第二绕组油道时，各个牵引绕组12、附加绕组11和高压绕组13所产生的热量就可以通过各个绕组之间第二绕组油道中的绝缘油排出到多流制牵引变压器的外部，由此就可以进一步提高多流制牵引变压器的散热能力。
作为一种优选的实施方式，相邻的所述两个目标绕组之间均设置有绝缘撑条。
可以理解的是，如果多流制牵引变压器中各个绕组之间的间隙过小，不仅不便于各个绕组的散热，而且，也不便于各个绕组之间的电气隔离，所以，在本实施例中，为了避免上述情况的发生，是在各个附加绕组11、牵引绕组12和高压绕组13中相邻的两个绕组之间设置了绝缘撑条。
能够想到的是，当在相邻的两个目标绕组之间设置了绝缘撑条之后，一方面可以保证各个绕组之间的电气隔离，另一方面也可以保证多流制牵引变压器的散热性能以及机械强度。
相应的，本发明还公开了一种轨道车辆，包括如前述所公开的一种多流制牵引变压器。
可以理解的是，随着我国城市轨道交通的迅猛发展，我国很多种类的轨道车辆设备均需要出口到国外，这就需要出口到国外的轨道车辆能够实现跨国、跨区域运行，也即，需要出口到国外的轨道车辆能够在多种供电 制式下进行稳定工作。在此情况下，就可以在轨道车辆中安装如前述所公开的多流制牵引变压器来解决上述问题。
而且，由于本实施例所提供的多流制牵引变压器不需要占据较多的空间体积，所以，当将该多流制牵引变压器设置在轨道车辆中时，也能够便于轨道车辆的小型化、轻量化设计。
本发明实施例所提供的一种轨道车辆，具有如前述所公开的一种多流制牵引变压器所具有的有益效果。
本说明书中各个实施例采用递进的方式描述，每个实施例重点说明的都是与其它实施例的不同之处，各个实施例之间相同或相似部分互相参见即可。
最后，还需要说明的是，在本文中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。
以上对本发明所提供的一种多流制牵引变压器以及一种轨道车辆进行了详细介绍，本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想；同时，对于本领域的一般技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本发明的限制。
Claims (10)
- 一种多流制牵引变压器，其特征在于，包括：铁心，所述铁心具有两个铁心柱，每一个所述铁心柱的外侧布置有两个附加绕组，每一个所述附加绕组的外侧布置有一个牵引绕组，并且，每一个所述牵引绕组的外侧布置有一个高压绕组。
- 根据权利要求1所述的多流制牵引变压器，其特征在于，每一个所述高压绕组的外侧还布置有一个辅助绕组。
- 根据权利要求2所述的多流制牵引变压器，其特征在于，还包括：用于为所述附加绕组和/或所述牵引绕组和/或所述辅助绕组提供附加电感值的直流电抗器。
- 根据权利要求1所述的多流制牵引变压器，其特征在于，所述高压绕组、所述牵引绕组和所述附加绕组均为层式绕组。
- 根据权利要求1所述的多流制牵引变压器，其特征在于，所述高压绕组和/或所述牵引绕组和/或所述附加绕组的内部均设置有用于容置绝缘油的第一绕组油道。
- 根据权利要求1所述的多流制牵引变压器，其特征在于，所述附加绕组和/或所述牵引绕组为由换位导线所制成的绕组。
- 根据权利要求6所述的多流制牵引变压器，其特征在于，所述换位导线为由电解铜所制成的导线。
- 根据权利要求1至7任一项所述的多流制牵引变压器，其特征在于，相邻的两个目标绕组之间均设置有用于容置绝缘油的第二绕组油道；其中，所述目标绕组为所述牵引绕组、所述附加绕组或所述高压绕组中的任意一种绕组。
- 根据权利要求8所述的多流制牵引变压器，其特征在于，相邻的两个所述目标绕组之间均设置有绝缘撑条。
- 一种轨道车辆，其特征在于，包括如权利要求1至9任一项所述的多流制牵引变压器。
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