CN205092489U - Modern tram intelligence prepackage type transformer substation - Google Patents

Abstract

A smart prefabricated substation for modern trams to achieve the reliability, flexibility, compactness and intelligence of the traction substation system and minimize the urban land occupation. It includes a rectifier transformer module, a switch cabinet module, a distribution transformer module, a low-voltage power distribution room module and a control and intelligent equipment module, and two adjacent modules can be detachably connected. A rectifier transformer is fixed in the rectifier transformer module, a ring network cabinet, a DC switch cabinet, a negative pole cabinet, a rectifier cabinet, an Internet isolation switch cabinet and a rail potential limiting device are fixed in the switch cabinet module, and a power distribution transformer is fixed in the power distribution transformer module. Transformers, 0.4kV power distribution cabinets are fixed in the module of the low-voltage power distribution room, and control signal screens, AC and DC screens for substations and smart devices are fixed in the modules of the low-voltage power distribution room.

Description

A smart prefabricated substation for modern trams

technical field

The utility model relates to a power supply system for modern trams, in particular to an intelligent prefabricated substation used in modern tram engineering.

Background technique

Modern tram is a kind of public transportation for urban development. Compared with subway projects, traction power supply is generally supplied by ground traction substations along the line, rather than underground substations. Currently, construction is widely used in urban rail transit projects. The equipment room constitutes a substation. Since the substation is installed underground and the equipment is open, it occupies a large area. The installation and commissioning of the equipment must be carried out after the civil engineering is basically completed. The construction, installation and commissioning are difficult and easy to cause equipment damage; Aiming at the above problems, a solution of setting up prefabricated substations on the ground is proposed.

Box-type traction substations have been widely used abroad, such as the light rail system in Dallas, the subway system in San Diego, and the MRT in southeastern Pennsylvania. Box-type traction substations are also widely used in the eastern and western railways of Hong Kong. However, the box-type traction substation only arranges the components of the equipment at intervals in the same box, and does not achieve real pre-installation. The interlocking protection and intelligent level of the system are not high, and the control and maintenance are difficult, which is not conducive to the entire traction power supply. Intelligent development of the system.

Tram is one of the main forms of urban rail transit. On the one hand, it puts forward the transformation requirements of various substations for power supply to intelligent prefabricated substations. On the other hand, urban development, overall system integration, landscape and safety measures Higher requirements are put forward, and the equipment is installed and debugged in a factory to ensure reliability.

Utility model content

The technical problem to be solved by the utility model is to provide an intelligent prefabricated substation for modern tram engineering, so as to realize the reliability, flexibility, compactness and intelligence of the traction substation system, and reduce the urban land occupation as much as possible.

The technical solution adopted by the utility model to solve the problems of the technologies described above is as follows:

A modern streetcar intelligent prefabricated substation of the utility model is characterized in that it includes a rectifier transformer module, a switch cabinet module, a distribution transformer module, a low-voltage power distribution room module and a control and intelligent equipment module, two adjacent The modules are detachably connected; the rectifier transformer module is fixedly equipped with a rectifier transformer, and the switchgear module is fixedly equipped with a ring network cabinet, a DC switchgear cabinet, a negative pole cabinet, a rectifier cabinet, an internet isolation switchgear, a rail potential limiting device, and a power distribution transformer module The distribution transformer is fixed inside, the 0.4kV power distribution cabinet is fixed inside the module of the low-voltage power distribution room, and the control signal screen, AC and DC screen for power substation and intelligent equipment are fixed inside the module of the low-voltage power distribution room.

The beneficial effect of the utility model is that the equipment needed to supply power to the tram and some power lighting equipment along the line is designed and installed in a box with a certain volume in a compact and orderly manner, and it is intelligentized through the control panel and the remote control terminal Control and management, enhance the reliability, flexibility and compactness of the traction substation system, and minimize the city's land occupation; it can meet the installation requirements of different functions and equipment types in various special cases, which is convenient for construction, installation and operation Management and maintenance, safe and reliable operation, and universal applicability.

Description of drawings

This manual includes the following four drawings:

Accompanying drawing 1 is the structure schematic diagram of a kind of modern streetcar intelligent prefabricated substation embodiment 1 of the utility model;

Accompanying drawing 2 is the structural representation of embodiment 2 of a kind of modern streetcar intelligent prefabricated substation of the utility model;

Accompanying drawing 3 is the structure diagram of embodiment 3 of a kind of modern streetcar intelligent prefabricated substation of the utility model;

Accompanying drawing 4 is the structure diagram of embodiment 4 of a kind of modern streetcar intelligent prefabricated substation of the utility model;

The components and their corresponding marks are shown in the figure: rectifier transformer module A1, switch cabinet module A2, distribution transformer module A3, low-voltage power distribution room module A4, control and intelligent equipment module A5.

5. Specific implementation

Below in conjunction with accompanying drawing, the utility model is further described.

Referring to Fig. 1, a kind of modern streetcar intelligent prefabricated substation of the present utility model comprises rectifier transformer module A1, switchgear module A2, power distribution transformer module A3, low-voltage power distribution room module A4 and control and intelligent equipment module A5, Two adjacent modules can be detachably connected. The rectifier transformer module A1 is fixed with a rectifier transformer, and the switch cabinet module A2 is fixed with a ring network cabinet, a DC switch cabinet, a negative pole cabinet, a rectifier cabinet, an Internet isolation switch cabinet and a rail potential limiting device, and the distribution transformer module A3 is fixed inside The distribution transformer is installed, the 0.4kV power distribution cabinet is fixed in the module A4 of the low-voltage power distribution room, and the control signal screen, the AC and DC screen for the substation and the intelligent equipment are fixed in the module A4 of the low-voltage power distribution room. The equipment in the substation will be decomposed into five modules according to different types, and corresponding functional equipment and devices will be installed in them to realize the reliability, flexibility, compactness and intelligence of the traction substation system and minimize the urban land occupation.

Since modern trams usually run on urban roads, according to the actual urban road conditions, each module can be assembled into a whole intelligent prefabricated substation, and can also be distributed in the nearest plot range, and can also be The rectifier transformer module and distribution transformer module are placed underground to minimize the space occupied on the ground.

The five modules can be flexibly combined in various forms according to specific situations.

Referring to Embodiment 1 shown in FIG. 1, the rectifier transformer module A1, the switch cabinet module A2, the distribution transformer module A3, the low-voltage power distribution room module A4, and the control and intelligent equipment module A5 are horizontally arranged side by side. That is to say, the five modules are arranged in a straight line and occupy a large area, which can be applied to areas with open streets, few buildings, and evacuated population.

Referring to Embodiment 2 shown in FIG. 2, the switchgear module A2, the control and intelligent equipment module A5, the distribution transformer module A3 and the low-voltage power distribution room module A4 are horizontally arranged side by side, and are located on the side of the rectifier transformer module A1. That is to say, the five modules are arranged in the shape of a character and occupy a large area. It can be applied to areas with open streets, few buildings, and evacuated population.

Referring to Embodiment 3 shown in FIG. 3, the rectifier transformer module A1 and the switch cabinet module A2 are horizontally arranged side by side, the distribution transformer cabinet module A3, the low-voltage power distribution room cabinet module A4 and the control and intelligent equipment cabinet module A5 is vertically arranged side by side, and is located on the side of switch cabinet module A2. That is, the five modules are arranged in an L shape, which is suitable for areas with narrow streets, dense buildings, and concentrated population in the city.

Referring to Embodiment 4 shown in Figure 4, the rectifier transformer module A1 and the transformer cabinet module A3 are horizontally arranged side by side, and buried below the ground, and its rectifier transformer and distribution transformer adopt buried rectifier transformer, buried type Distribution transformers. The switchgear module A2, the cabinet module A4 of the power distribution low-voltage power distribution room, and the control and intelligent equipment cabinet module A5 are arranged side by side side by side and located on the ground. That is to say, the five modules are in the form of a superimposed combination, which is suitable for urban areas with narrow streets, dense buildings, and concentrated population.

A modern streetcar intelligent prefabricated substation of the present utility model can bring the following benefits to the project after realizing factoryization, modularization, standardization and intelligence of the substation:

1) Adapt to the narrow space of urban tram projects to the greatest extent, and can adapt to the restrictions on the shape and size of prefabricated substations in various special locations by adjusting the combination of various modules. The modular composition also makes the installation of substations , transportation and construction are more convenient;

2) To maintain the reliability of the equipment itself and the environmental adaptability during operation, the equipment is unpacked, installed, wired, and tested in a clean factory environment to avoid the impact of harsh conditions on site to the greatest extent;

3) Improve the overall reliability and electromagnetic compatibility level of the substation, transform some strict technical work into the factory behavior of manufacturing multiple sets of standard equipment according to a production drawing, replace the on-site installation with fixed factory technology, and reduce the occurrence of errors probability; at the same time, it is easy to realize quality supervision, inspection and control;

4) The operation and maintenance are simple, and the operation and maintenance personnel are familiar with one substation, then they have mastered all substations;

5) Compared with the "room-type substation", the "prefabricated substation" is less affected by the civil construction period, the comprehensive investment is greatly reduced, and the construction period can be effectively shortened, and it is easy to deeply integrate with the urban landscape;

6) The intelligent protection and control of the power supply network can be realized according to the characteristics of the tram power supply network, and the real large-scale power supply can be realized, the investment in the medium-voltage ring network can be greatly reduced, the flexibility of the system power supply and the selectivity of the protection action can be improved, and the scope of failure can be reduced .

7) It can improve the automation level of modern tram substations, the application of domain control between substations, eliminate safety hazards during operation, and improve the power supply reliability and safety management level of modern tram substations.

8) Realize intelligent power supply and charging according to the power supply needs of modern trams.

The above description is only to illustrate the combination of a modern tram intelligent prefabricated substation device of the present invention, not to limit the present invention to the specific structure and scope of application shown and described in the figure, so All corresponding modifications and equivalents that may be used belong to the patent scope of the utility model application.

Claims (5)

1. a modern tram intelligence preassembled transformer station, it is characterized in that: it comprises rectifier transformer module (A1), switch cubicle module (A2), distribution transformer module (A3), low-voltage distribution room module (A4) and controls and smart machine module (A5), and adjacent two modules removably connect; Described rectifier transformer module (A1) internal fixtion arranges rectifier transformer, switch cubicle module (A2) internal fixtion arranges ring main unit, direct-current switch cabinet, negative pole cabinet, rectifier cubicle, online isolating switch cabinet and side rail wear, distribution transformer module (A3) internal fixtion arranges distribution transformer, low-voltage distribution room module (A4) internal fixtion arranges 0.4kV power distribution cabinet, and low-voltage distribution room module (A4) internal fixtion arranges control signal screen, electric substation's alternating current-direct current screen and smart machine.

2. a kind of modern tram intelligence preassembled transformer station as claimed in claim 1, is characterized in that: described rectifier transformer module (A1), switch cubicle module (A2), distribution transformer module (A3), low-voltage distribution room module (A4) and to control and smart machine module (A5) transverse direction is set up in parallel.

3. a kind of modern tram intelligence preassembled transformer station as claimed in claim 1, it is characterized in that: described switch cubicle module (A2) and to control and smart machine module (A5), distribution transformer module (A3) and low-voltage distribution room module (A4) transverse direction is set up in parallel, and be positioned at rectifier transformer module (A1) side.

4. a kind of modern tram intelligence preassembled transformer station as claimed in claim 1, it is characterized in that: described rectifier transformer module (A1), switch cubicle module (A2) are laterally set up in parallel, distribution transformer cabinet module (A3), low-voltage distribution room cabinet module (A4) and control and smart machine cabinet module (A5) are vertically set up in parallel, and are positioned at switch cubicle module (A2) side.

5. a kind of modern tram intelligence preassembled transformer station as claimed in claim 1, is characterized in that: described rectifier transformer module (A1) and transformer case module (A3) transverse direction are set up in parallel, and imbed below ground; Described switch cubicle module (A2), distribution low-voltage distribution room cabinet module (A4) and control and smart machine cabinet module (A5) are laterally set up in parallel, and are positioned on ground.