CN113991663A - Movable phase-changing device and vehicle-mounted mobile substation - Google Patents

Movable phase-changing device and vehicle-mounted mobile substation Download PDF

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Publication number
CN113991663A
CN113991663A CN202111326863.4A CN202111326863A CN113991663A CN 113991663 A CN113991663 A CN 113991663A CN 202111326863 A CN202111326863 A CN 202111326863A CN 113991663 A CN113991663 A CN 113991663A
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commutation
output end
conductive member
input end
phase
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CN113991663B (en
Inventor
高美金
王锋华
王婷婷
诸言涵
黄江倩
张波
杨嘉睿
谢晓磊
崔旭东
张继承
毛慧琳
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Henan Pinggao Electric Co Ltd
Economic and Technological Research Institute of State Grid Zhejiang Electric Power Co Ltd
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Henan Pinggao Electric Co Ltd
Economic and Technological Research Institute of State Grid Zhejiang Electric Power Co Ltd
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for AC mains or AC distribution networks
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B5/00—Non-enclosed substations; Substations with enclosed and non-enclosed equipment
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B5/00—Non-enclosed substations; Substations with enclosed and non-enclosed equipment
    • H02B5/06—Non-enclosed substations; Substations with enclosed and non-enclosed equipment gas-insulated
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/50—Arrangements for eliminating or reducing asymmetry in polyphase networks

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Installation Of Bus-Bars (AREA)

Abstract

本发明公开了一种移动式换相装置，包括：母线筒；输入端导电件，输入端导电件位于母线筒内，输入端导电件能够与输入端套管电连接；输出端导电件，输出端导电件位于母线筒内，输出端导电件能够与输出端套管电连接；换相转角装置，换相转角装置的输入端与输入端导电件连接，换相转角装置的输出端与输出端导电件连接，换相转角装置用于调换相位。本发明中的移动换相装置可以预先制备好，运输到现场后将装置放置于车板上，之后直接接线使用。本发明中的移动换相装置能够显著提高车载移动变电站的投入速度，简化换相作业步骤，并且能够避免对现场地面造成破坏。本发明还公开了一种车载移动变电站。

Figure 202111326863

The invention discloses a mobile phase commutation device, comprising: a busbar; The terminal conductive member is located in the busbar, and the output terminal conductive member can be electrically connected with the output terminal sleeve; the commutation angle device, the input end of the phase commutation angle device is connected with the input terminal conductive member, and the output end of the phase commutation angle device is connected to the output end The conductive parts are connected, and the phase commutation angle device is used to change the phase. The mobile commutation device in the present invention can be prepared in advance, and after being transported to the site, the device is placed on the vehicle board, and then directly wired for use. The mobile commutation device in the present invention can significantly improve the input speed of the vehicle-mounted mobile substation, simplify the commutation operation steps, and avoid damage to the site ground. The invention also discloses a vehicle-mounted mobile substation.

Figure 202111326863

Description

Movable phase-changing device and vehicle-mounted mobile substation
Technical Field
The invention relates to the field of vehicle-mounted mobile transformers, in particular to a mobile phase-changing device and a vehicle-mounted mobile transformer substation.
Background
On-board mobile substations can supply power to loads in place of power stations in power emergency or power station overhaul, and are therefore increasingly being adopted. In practical application, a vehicle-mounted mobile substation has the problem that the phase sequence of a transformer is inconsistent with that of a high-voltage line, so that phase change is required. In the prior art, the phase change is usually realized by the way of arranging an insulating pillar or erecting a portal frame by a person skilled in the art. However, this method has the disadvantages of long construction time and complicated operation. And need do the fixed foundation on ground when setting up insulating pillar or erectting the portal frame, therefore to ground destruction degree great. In addition, the arranged insulating support or the erected portal frame can be used only once and cannot be reused.
Therefore, how to reduce the operation time of commutation, simplify the operation steps of commutation, avoid damaging the ground, and improve the utilization rate of commutation equipment is a key problem to be solved urgently by those skilled in the art.
Disclosure of Invention
The invention aims to reduce the operation time of commutation, simplify the operation steps of commutation, avoid damage to the ground and improve the utilization rate of commutation equipment. In order to achieve the purpose, the invention provides the following technical scheme:
a mobile commutation device, comprising:
a bus bar drum;
the input end conductive piece is positioned in the bus tube and can be electrically connected with the input end sleeve;
the output end conductive piece is positioned in the bus tube and can be electrically connected with an output end sleeve;
the phase change corner device comprises an input end and an output end, wherein the input end of the phase change corner device is connected with the input end conductive piece, the output end of the phase change corner device is connected with the output end conductive piece, and the phase change corner device is used for changing phases.
Preferably, the number of the input end sleeves is multiple, and the number of the input end conductive pieces is correspondingly multiple;
the input end conductive piece comprises an input end vertical conductive piece and an input end horizontal conductive piece, the top end of the input end vertical conductive piece is connected with the corresponding input end sleeve, one end of the input end horizontal conductive piece is connected to the bottom end of the input end vertical conductive piece, and the other end of the input end horizontal conductive piece is connected with the input end of the phase change corner device.
Preferably, the number of the output end sleeves is multiple, and the number of the output end conductive pieces is correspondingly multiple;
the output end conductive piece comprises an output end vertical conductive piece and an output end horizontal conductive piece, the top end of the output end vertical conductive piece is connected with the corresponding output end sleeve, one end of the output end horizontal conductive piece is connected to the bottom end of the output end vertical conductive piece, and the other end of the output end horizontal conductive piece is connected with the output end of the commutation angle device.
Preferably, the commutation angle rotating device comprises: the phase-change corner comprises a first phase-change corner piece, a second phase-change corner piece and an intermediate connecting piece;
the input end of the first phase change corner piece is connected with the output end of the input end horizontal conductive piece, the output end of the first phase change corner piece is connected with the input end of the intermediate connecting piece, the output end of the intermediate connecting piece is connected with the input end of the second phase change corner piece, the output end of the second phase change corner piece is connected with the input end of the output end horizontal conductive piece, the first phase change corner piece is used for phase change for the first time, and the second phase change corner piece is used for phase change again.
Preferably, sulfur hexafluoride insulating gas is filled in the bus tube.
Preferably, the bus-bar device further comprises an insulating basin, wherein the insulating basin isolates the inner cavity of the bus-bar cylinder into airtight chambers which are not communicated with each other.
Preferably, the insulation basin is provided with a conductor, one end of the conductor is connected with the intermediate connecting piece, and the other end of the conductor is connected with the first phase-change corner piece or the second phase-change corner piece.
Preferably, the intermediate connecting member is connected to the conductor through a first connector, and the first phase-change corner member or the second phase-change corner member is connected to the conductor through a second connector.
Preferably, the bottom of the bus-bar cylinder is provided with a supporting leg which is connected to the vehicle plate through a bolt.
Preferably, both ends of the bus tube are respectively provided with an input end bushing seat and an output end bushing seat, the input end bushing is installed on the input end bushing seat, and the output end bushing is installed on the output end bushing seat.
The invention also provides a vehicle-mounted transformer substation which comprises the mobile phase-changing device.
According to the technical scheme, the mobile phase-changing device can be prepared in advance, and the device is placed on a vehicle plate after being transported to the site and then is directly wired for use. Compared with the mode that an insulating support needs to be arranged on the site or a portal frame needs to be erected in the prior art, the mobile phase-changing device can remarkably improve the input speed of the vehicle-mounted mobile substation, simplifies the phase-changing operation steps and can avoid damage to the site ground. In addition, the mobile phase-changing device can be repeatedly used, so that the utilization rate is improved, and the cost is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a front view of a mobile phase-change device according to an embodiment of the present invention;
fig. 2 is a top view of a mobile phase-change device according to an embodiment of the present invention;
fig. 3 is a top view of a vehicle-mounted mobile substation according to an embodiment of the present invention.
Wherein, 1 is a bus tube, 2 is an input end horizontal conductive piece, 3 is an input end vertical conductive piece, 4 is an output end horizontal conductive piece, 5 is an output end vertical conductive piece, 6 is an input end sleeve, 7 is an output end sleeve, 8 is a vehicle board, and 9 is an insulating basin.
Detailed Description
The invention discloses a movable phase-changing device which can reduce the operation time of phase changing, simplify the operation steps of phase changing, avoid damaging the ground and improve the utilization rate of phase-changing equipment. The invention also discloses a vehicle-mounted mobile substation.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention discloses a mobile phase-changing device, comprising: the bus tube 1, the input end conductive piece, the output end conductive piece and the phase change corner device. Wherein, a bus bar barrel 1 is arranged on a vehicle plate 8 of the vehicle-mounted mobile substation. An input end conductive piece is positioned in the bus tube 1, and the input end conductive piece can be electrically connected with the input end sleeve 6. The output end conductive piece is positioned in the bus tube 1 and can be electrically connected with the output end sleeve 7. The input end of the phase change corner device is connected with the input end conductive piece, and the output end of the phase change corner device is connected with the output end conductive piece. The phase change angle device is used for changing the phase, so that the output end sleeve 7 outputs the voltage with different phase sequence from the output end sleeve 7.
The mobile commutation device of the invention can be prepared in advance, and the device is placed on the vehicle plate 8 after being transported to the site and then used by direct wiring. Compared with the mode that an insulating support needs to be arranged on the site or a portal frame needs to be erected in the prior art, the mobile phase-changing device can remarkably improve the input speed of the vehicle-mounted mobile substation, simplifies the phase-changing operation steps and can avoid damage to the site ground. In addition, the mobile phase-changing device can be repeatedly used, so that the utilization rate is improved, and the cost is reduced.
In the embodiment of the present invention, there are a plurality of input end bushings 6, and there are a plurality of input end conductive members correspondingly. Each input end conductive member includes an input end vertical conductive member 3 and an input end horizontal conductive member 2. The top end of the input end vertical conductive piece 3 is connected with the corresponding input end sleeve 6. One end of the input end horizontal conductive piece 2 is connected to the bottom end of the input end vertical conductive piece 3, and the other end of the input end horizontal conductive piece 2 is connected to the input end of the phase change corner device. The input end vertical conductive piece 3 and the input end horizontal conductive piece 2 are distributed in a right angle shape. All the input end conductive pieces are parallel to each other, and a preset insulation distance is reserved between the input end conductive pieces and the input end conductive pieces.
If the voltage to be delivered is a three-phase voltage, the input bushing 6 comprises three. Correspondingly, there are three input end vertical conductive members 3 and three input end horizontal conductive members 2. Each input vertical conductor 3 is connected to a corresponding input bushing 6. Each input end horizontal conductive member 2 is connected to a corresponding input end vertical conductive member 3.
The number of the output end bushings 7 is plural, and the number of the output end conductive pieces is correspondingly plural. Each output end conductive piece includes an output end vertical conductive piece 5 and an output end horizontal conductive piece 4. The top end of the output end vertical conductive piece 5 is connected with the corresponding output end bushing 7. One end of the output end horizontal conductive piece 4 is connected to the bottom of the output end vertical conductive piece 5. The other end of the output end horizontal conductive piece 4 is connected with the output end of the phase change corner device. The output end vertical conductive piece 5 and the output end horizontal conductive piece 4 are distributed in a right angle shape. All the output end conductive pieces are parallel to each other, and a preset insulation distance is reserved between the output end conductive pieces and the output end conductive pieces.
If the voltage to be delivered is a three-phase voltage, the output bushing 7 comprises three, respectively three output vertical conductors 5 and three output horizontal conductors 4. Each output vertical conductor 5 is connected to a corresponding output bushing 7. Each output end horizontal conductive member 4 is connected to a corresponding output end vertical conductive member 5.
Next, a commutation angle device is introduced, which specifically includes: the phase change corner fitting comprises a first phase change corner fitting, a second phase change corner fitting and an intermediate connecting piece. The input end of the first phase-change corner piece is connected with the output end of the input end horizontal conductive piece 2, the output end of the first phase-change corner piece is connected with the input end of the intermediate connecting piece, the output end of the intermediate connecting piece is connected with the input end of the second phase-change corner piece, the output end of the second phase-change corner piece is connected with the input end of the output end horizontal conductive piece 4, the first phase-change corner piece is used for phase change for the first time, and the second phase-change corner piece is used for phase change again.
Referring to fig. 1, in fig. 1, the phase sequence of the horizontal conductive member 2 at the input end is ABC, the first phase-change angle component rotates the ABC three phases by 60 °, and then the second phase-change angle component rotates the phase sequence by 60 °, so that the phase sequence is changed into CBA after the phase change of the second phase-change angle component. The phase sequence of the input end bushing 6 is ABC, and the phase sequence of the output end bushing 7 is CBA.
In the invention, sulfur hexafluoride insulating gas is filled in the bus tube 1. Thus, the adjacent conductive members have a small space distance to ensure insulation. Therefore, the structure of the whole mobile phase changing device is more compact, the occupied space is reduced, and the use is more flexible.
In the invention, an insulating basin 9 is also arranged in the bus tube 1, and the insulating basin 9 is used for isolating the inner cavity of the bus tube 1 into airtight chambers which are not communicated with each other. Thus, when one airtight chamber leaks, the airtightness of the other airtight chambers is not affected.
The insulation basin 9 is also provided with a conductor, one end of the conductor is connected with the middle connecting piece, and the other end of the conductor is connected with the first phase change corner piece. The insulating pot 9 thus not only serves to isolate the air-tight chamber, but also to support the intermediate connection member and the first commutation angle member. The invention arranges two insulation basins 9 in the bus-bar cylinder 1. One of the insulating tubs 9 is used to support the intermediate connection member and the first commutation angle, and the other insulating tub 9 is used to support the intermediate connection member and the second commutation angle.
In the invention, the intermediate connector and the conductor are connected by a first connector. The first plug connector is fixedly connected with the conductor and is positioned at one end part of the conductor. The end of the intermediate connector is insertable into and interference fit within the internal cavity of the first connector. Similarly, the first phase change corner fitting or the second phase change corner fitting is connected to the electrical conductor by the second plug connector. The second plug connector is fixedly connected with the other end of the electric conductor. And inserting the first commutation corner piece or the second commutation corner piece into the inner cavity of the second plug piece in an interference fit mode.
It should be noted that the first phase-change corner piece is connected with the input-end horizontal conductive piece 2 through a third connector, and the second phase-change corner piece is connected with the output-end horizontal conductive piece 4 through a fourth connector.
The bottom of the bus-bar cylinder 1 in the invention is provided with a supporting leg which is connected on the vehicle plate 8 through a bolt. Bolted connection not only can ensure the fastness of connection, convenient dismantlement moreover to do benefit to the removal or the reuse of a generating line section of thick bamboo 1.
Two ends of the bus tube 1 are respectively provided with an input end sleeve 6 seat and an output end sleeve 7 seat. An input end flange is arranged on the input end sleeve 6 seat, and the input end sleeve 6 is connected to the input end sleeve 6 seat through the input end flange. An output end flange is arranged on the output end sleeve 7 seat, and the output end sleeve 7 is connected to the output end sleeve 7 seat through the output end flange.
The invention also discloses a vehicle-mounted transformer substation which comprises the mobile phase change device, wherein the mobile phase change device is any one of the mobile phase change devices. Above-mentioned portable commutation device has above-mentioned effect, and the on-vehicle transformer substation that has above-mentioned portable commutation device also has above-mentioned effect, and therefore this paper is no longer repeated.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (11)

1.一种移动式换相装置，其特征在于，包括：1. a mobile commutation device, is characterized in that, comprises: 母线筒；busbar; 输入端导电件，所述输入端导电件位于所述母线筒内，所述输入端导电件能够与输入端套管电连接；an input-end conductive member, the input-end conductive member is located in the busbar, and the input-end conductive member can be electrically connected to the input-end sleeve; 输出端导电件，所述输出端导电件位于所述母线筒内，所述输出端导电件能够与输出端套管电连接；an output-end conductive member, the output-end conductive member is located in the busbar, and the output-end conductive member can be electrically connected with the output-end sleeve; 换相转角装置，所述换相转角装置的输入端与所述输入端导电件连接，所述换相转角装置的输出端与所述输出端导电件连接，所述换相转角装置用于调换相位。A phase commutation angle device, the input end of the phase commutation angle device is connected to the conductive part of the input end, the output end of the phase commutation angle device is connected to the conductive part of the output end, and the phase commutation angle device is used to exchange phase. 2.根据权利要求1所述的移动式换相装置，其特征在于，所述输入端套管为多个，所述输入端导电件对应地为多个；2 . The mobile commutation device according to claim 1 , wherein there are a plurality of the input end sleeves, and a corresponding plurality of the input end conductive members; 2 . 所述输入端导电件包括输入端竖直导电件和输入端水平导电件，所述输入端竖直导电件的顶端与对应的所述输入端套管连接，所述输入端水平导电件的一端连接在所述输入端竖直导电件的底端，所述输入端水平导电件的另一端与所述换相转角装置的输入端连接。The input end conductive member includes an input end vertical conductive member and an input end horizontal conductive member, the top end of the input end vertical conductive member is connected to the corresponding input end sleeve, and one end of the input end horizontal conductive member It is connected to the bottom end of the vertical conductive member of the input end, and the other end of the horizontal conductive member of the input end is connected to the input end of the commutation angle device. 3.根据权利要求2所述的移动式换相装置，其特征在于，所述输出端套管为多个，所述输出端导电件对应地为多个；3 . The mobile commutation device according to claim 2 , wherein the number of the output end sleeves is plural, and the number of the output end conductive parts is correspondingly plural; 4 . 输出端导电件包括输出端竖直导电件和输出端水平导电件，所述输出端竖直导电件的顶端与对应的所述输出端套管连接，所述输出端水平导电件的一端连接在所述输出端竖直导电件的底端，所述输出端水平导电件的另一端与所述换相转角装置的输出端连接。The output end conductive member includes an output end vertical conductive member and an output end horizontal conductive member, the top end of the output end vertical conductive member is connected to the corresponding output end sleeve, and one end of the output end horizontal conductive member is connected to the output end. The bottom end of the output end is vertical conductive member, and the other end of the output end horizontal conductive member is connected with the output end of the commutation angle device. 4.根据权利要求3所述的移动式换相装置，其特征在于，所述换相转角装置包括：第一换相转角件、第二换相转角件以及中间连接件；4 . The mobile commutation device according to claim 3 , wherein the commutation angle device comprises: a first phase commutation corner piece, a second phase commutation corner piece and an intermediate connecting piece; 5 . 所述第一换相转角件的输入端与所述输入端水平导电件的输出端连接，所述第一换相转角件的输出端与所述中间连接件的输入端连接，所述中间连接件的输出端与所述第二换相转角件的输入端连接，所述第二换相转角件的输出端与所述输出端水平导电件的输入端连接，所述第一换相转角件用于首次换相，所述第二换相转角件用于再次换相。The input end of the first commutation corner piece is connected to the output end of the input end horizontal conductive piece, the output end of the first commutation corner piece is connected to the input end of the intermediate connecting piece, and the intermediate connection The output end of the second commutation corner piece is connected to the input end of the second commutation corner piece, the output end of the second commutation corner piece is connected to the input end of the output horizontal conductive piece, and the first commutation corner piece For the first commutation, the second commutation corner piece is used for the second commutation. 5.根据权利要求4所述的移动式换相装置，其特征在于，所述母线筒内填充有六氟化硫绝缘气体。5 . The mobile commutation device according to claim 4 , wherein the busbar barrel is filled with sulfur hexafluoride insulating gas. 6 . 6.根据权利要求5所述的移动式换相装置，其特征在于，还包括绝缘盆，所述绝缘盆将所述母线筒的内腔隔离为互不相通的气密室。6 . The mobile commutation device according to claim 5 , further comprising an insulating basin, wherein the insulating basin isolates the inner cavity of the bus bar into airtight chambers that are not communicated with each other. 7 . 7.根据权利要求6所述的移动式换相装置，其特征在于，所述绝缘盆上设置有导电体，所述导电体的一端与所述中间连接件连接，另一端与所述第一换相转角件或者所述第二换相转角件连接。7 . The mobile commutation device according to claim 6 , wherein a conductor is provided on the insulating basin, one end of the conductor is connected to the intermediate connecting piece, and the other end is connected to the first The phase commutation corner piece or the second phase commutation corner piece is connected. 8.根据权利要求7所述的移动式换相装置，其特征在于，所述中间连接件通过第一插接件与所述导电体连接，所述第一换相转角件或者所述第二换相转角件通过第二插接件与所述导电体连接。8 . The mobile commutation device according to claim 7 , wherein the intermediate connector is connected to the conductor through a first plug, and the first commutation corner piece or the second commutation corner piece or the second The phase commutation corner piece is connected with the electrical conductor through the second plug connector. 9.根据权利要求1所述的移动式换相装置，其特征在于，所述母线筒的底部设置有支撑腿，所述支撑腿通过螺栓连接在车板上。9 . The mobile phase commutation device according to claim 1 , wherein the bottom of the busbar is provided with support legs, and the support legs are connected to the vehicle board by bolts. 10 . 10.根据权利要求1所述的移动式换相装置，其特征在于，所述母线筒的两端分别设置有输入端套管座和输出端套管座，所述输入端套管安装在所述输入端套管座上，所述输出端套管安装在所述输出端套管座上。10. The mobile commutation device according to claim 1, wherein the two ends of the busbar are respectively provided with an input end sleeve seat and an output end sleeve seat, and the input end sleeve is installed in the on the input end sleeve seat, and the output end sleeve is installed on the output end sleeve seat. 11.一种车载变电站，其特征在于，包括如权利要求1-10任意一项所述的移动式换相装置。11. A vehicle-mounted substation, characterized by comprising the mobile commutation device according to any one of claims 1-10.
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