WO2018103124A1

WO2018103124A1 - Integrated converter cabinet

Info

Publication number: WO2018103124A1
Application number: PCT/CN2016/109733
Authority: WO
Inventors: 刘立刚; 王彬; 高永军; 马连凤; 王雷; 徐平平; 李守蓉
Original assignee: 中车永济电机有限公司
Priority date: 2016-12-09
Filing date: 2016-12-13
Publication date: 2018-06-14
Also published as: CN108233676A

Abstract

An integrated converter cabinet, comprising: a main body (1), a cooling system (2), a traction converter (3), an auxiliary converter (4), and a train power supply unit (5). The cooling system (2) comprises a cooling assembly (21) and a cooling tower (22). The traction converter (3), auxiliary converter (4), train power supply unit (5), and cooling assembly (21) are disposed within the main body (1). The cooling tower (22) is disposed outside of the main body (1). The cooling assembly (21) is used to cool the traction converter (3), the auxiliary converter (4), and the train power supply unit (5). By integrating the train power supply unit in the converter cabinet, the integrated converter cabinet of the present invention reduces an occupied space in a train car and the weight of the train car, and cools the train power supply unit with the cooling assembly of the converter, thus enhancing a cooling effect.

Description

Integrated converter cabinet

Technical field

The invention relates to the technical field of electric locomotives, and in particular to an integrated converter cabinet.

Background technique

Electric locomotives are developing in the direction of high integration and high output. The converter cabinet is the core component of electric locomotives and undertakes the major task of converting grid energy to drive traction motors and auxiliary equipment on vehicles.

In the prior art, in order to increase the integration degree of the electric locomotive, the cooling component, the traction converter or the traction assist integrated converter is usually integrated into the converter cabinet, and the train power supply unit is integrated into the train power supply cabinet. On the one hand, a plurality of integrated cabinets need to occupy a large space when assembling, which is not conducive to the compactness of the whole vehicle space arrangement, and the use of a plurality of integrated cabinets makes the electric locomotives have a large weight and cannot meet the lightweight requirements. On the other hand, in the prior art, the train power supply cabinet adopts air cooling and cooling, so that the train power supply unit is insufficiently cooled, causing damage to the train, reducing the service life of the train power supply unit, and increasing the maintenance cost of the electric locomotive.

Summary of the invention

The invention provides an integrated variable flow cabinet to solve the problem that a single train power supply unit causes a large space occupied by the whole vehicle assembly and does not meet the light weight requirement of the whole vehicle.

The invention provides an integrated converter cabinet, comprising a cabinet, a cooling system, a traction converter, an auxiliary converter and a train power supply unit, wherein the cooling system comprises a cooling assembly and a cooling tower;

The traction converter, the auxiliary converter, the train power supply unit and the cooling assembly are disposed in the cabinet, and the cooling tower is disposed outside the cabinet;

The cooling assembly is configured to cool the traction converter, the auxiliary converter, and the train power supply unit.

Optionally, the cooling component comprises: a water pump, a water cooling pipeline, an expansion water tank, a temperature sensor, and a pressure sensor;

The water pump, the water cooling pipe, the expansion water tank, the temperature sensor, and the pressure sensor are disposed in the cabinet;

The water pump is disposed at a lowermost end of the cooling assembly, a water inlet of the water-cooling pipeline is connected to a water outlet of the water pump, and a water outlet of the water-cooling pipeline is connected to a water inlet of the cooling tower, The water outlet of the cooling tower is connected to the water inlet of the water pump, and the water-cooling pipeline connecting the two ports of the water pump is connected to the expansion water tank through two thin tubes, and the water cooling pipeline is provided with a plurality of parallel branches Cooling the plurality of parallel branches to the traction converter, the auxiliary converter, and the train power supply unit in parallel;

The temperature sensor is configured to monitor a temperature of the water-cooled pipeline;

The pressure sensor is used to monitor the pressure of the water-cooled line.

Optionally, the respective switching electrical components of the traction converter, the auxiliary converter and the train power supply unit are disposed at an upper end of the cabinet.

Optionally, the respective high voltage interface components of the traction converter, the auxiliary converter and the train power supply unit are disposed at a lowermost end of the cabinet.

Optionally, a sensor component of each of the traction converter, the auxiliary converter and the train power supply unit is disposed at a lower end of the cabinet.

Optionally, the respective low-voltage interface components of the traction converter, the auxiliary converter and the train power supply unit are disposed on the left side of the upper end of the cabinet.

Optionally, the respective power modules and capacitor modules of the traction converter, the auxiliary converter, and the train power supply unit are disposed adjacent to each other, and the respective powers of the traction converter, the auxiliary converter, and the train power supply unit The modules are arranged from left to right in the middle of the cabinet, and the respective capacitive modules of the traction converter, the auxiliary converter and the train power supply unit are arranged from left to right in the middle of the cabinet.

Optionally, the respective power modules of the traction converter, the auxiliary converter and the train power supply unit are connected to the peripheral control circuit through a quick connector.

Optionally, a respective low-voltage electrical component of the traction converter, the auxiliary converter, and the train power supply unit is disposed at an upper end of the cabinet, and an auxiliary filtering component of the auxiliary converter is disposed at the cabinet Upper end.

Optionally, a front door is disposed on the cabinet corresponding to the cooling component, the auxiliary converter, and the train power supply unit, and the cabinet corresponds to the traction converter. The front door is provided with two front doors, and the cabinet is also provided with a rear door.

The integrated converter cabinet provided by the invention comprises a cabinet, a cooling system, a traction converter, an auxiliary converter and a train power supply unit, wherein the cooling system comprises a cooling component and a cooling tower, a traction converter and an auxiliary converter The train power supply unit and the cooling component are disposed in the cabinet body, the cooling tower is disposed outside the cabinet, and the cooling component is used for cooling the traction converter, the auxiliary converter and the train power supply unit. By integrating the train power supply unit into the converter cabinet, the vehicle assembly space is reduced, the vehicle layout is more compact, and the vehicle weight is reduced, the vehicle lightweight requirements are met, and the converter cooling is used. The component cools the train power supply unit to make it better.

DRAWINGS

FIG. 1 is a schematic structural view of an integrated converter cabinet provided by the present invention.

1: cabinet;

2: cooling system;

3: traction converter;

4: auxiliary converter;

5: train power supply unit;

6: switch electrical components;

7: high voltage interface assembly;

8: sensor assembly;

9: low voltage interface component;

10: power module;

11: capacitor module;

12: low voltage electrical components;

13: auxiliary filter component;

21: cooling component;

22: cooling tower;

211: water pump;

212: water-cooled pipeline;

213: an expansion tank;

214: a temperature sensor;

215: pressure sensor;

216: Thin tube.

detailed description

FIG. 1 is a schematic structural diagram of an integrated converter cabinet provided by the present invention. As shown in FIG. 1 , the integrated converter cabinet of the embodiment may include: a cabinet 1, a cooling system 2, a traction converter 3, and an auxiliary variable. The flow device 4 and the train power supply unit 5, wherein the cooling system 2 includes a cooling assembly 21 and a cooling tower 22.

The traction converter 3, the auxiliary converter 4, the train power supply unit 5 and the cooling unit 21 are arranged in the cabinet 1, and the cooling tower 22 is arranged outside the cabinet 1. The cooling assembly 21 is used to cool the traction converter 3, the auxiliary converter 4 and the train power supply unit 5.

Specifically, the traction converter 3 is used to supply a variable voltage and frequency conversion power supply to the traction motor load, and the traction converter 3 includes two traction portions, a shaft 1 and a shaft 2. The auxiliary converter 4 is used to supply power to the electric locomotive auxiliary load. The train power supply unit 5 is used to supply power to the passenger compartment. The cooling assembly 21 of the cooling system 2 in the cabinet 1 is used to absorb the heat of the traction converter 3, the auxiliary converter 4 and the train power supply unit 5 to reduce the traction converter 3, the auxiliary converter 4 and the train power supply unit The temperature of 5, the cooling system 2 is disposed outside the cabinet 1 of the cooling tower 22 for heat exchange of heat absorbed by the cooling assembly 21 with the air outside the tower body to dissipate heat into the atmosphere. The train power supply unit 5 is integrated in the converter cabinet, and is cooled by the cooling component 21 of the converter, so that the cooling effect of the train power supply unit 5 is more obvious, and the damage caused by the heat dissipation is not reduced, thereby prolonging the The service life of the train power supply unit 5 reduces the inspection and maintenance cost of the electric locomotive.

By integrating the train power supply unit 5 into the converter cabinet, the assembly space between the existing converter cabinet and the train power supply cabinet is saved, thereby reducing the assembly space occupied by the entire vehicle, and in addition, the train power supply unit 5, traction The converter 3 and the auxiliary converter 4 share a cooling system 2, which saves space occupied by the separate power supply unit of the train power supply unit 5, thereby further reducing the assembly space of the entire vehicle, making the vehicle arrangement more compact, and Compared with the existing independent converter cabinet and train power supply cabinet, the weight of the integrated converter cabinet is also reduced, thereby reducing the weight of the whole vehicle and meeting the requirements for lightweight.

Alternatively, the cooling assembly 21 may include a water pump 211, a water cooling line 212, an expansion water tank 213, a temperature sensor 214, and a pressure sensor 215. Wherein, the water pump 211 and the water-cooled pipeline 212, the expansion water tank 213, the temperature sensor 214 and the pressure sensor 215 are disposed in the cabinet 1, the water pump 211 is disposed at the lowermost end of the cooling assembly 21, the water inlet of the water cooling pipeline 212 is connected to the water outlet of the water pump 211, and the water cooling pipeline 212 The water outlet is connected to the water inlet of the cooling tower 22, the water outlet of the cooling tower 22 is connected to the water inlet of the water pump 211, and the water-cooling pipeline 212 connecting the two ports of the water pump 211 is connected to the expansion water tank 213 through two thin tubes, and the water cooling pipeline 212 A plurality of parallel branches are provided, and the plurality of parallel branches cool the traction converter 3, the auxiliary converter 4 and the train power supply unit 5 in parallel. Temperature sensor 214 is used to monitor the temperature of water cooled line 212 and pressure sensor 215 is used to monitor the pressure of water cooled line 212.

In the present embodiment, in order to facilitate the connection of the water-cooling pipe 212, the heaviest water pump 211 is installed at the lowermost end of the cooling assembly 21, and the water-cooling pipe 212 is disposed in the middle of the cabinet 1. The low-temperature water flowing out of the water pump 211 flows into the water-cooling pipe 212, flows through the traction converter 3, the auxiliary converter 4, and the train power supply unit 55 in a plurality of parallel branches, takes the traction converter 3, and assists the converter. The heat of the device 4 and the train power supply unit 5, at which time the water in the water-cooled line 212 becomes high-temperature water, the high-temperature water flows into the cooling tower 22 for heat dissipation, and low-temperature water is obtained, and the low-temperature water flows back to the water pump 211, thereby forming cooling. In the circuit, the cooling water circulates in the cooling circuit, so that the heat of the traction converter 3, the auxiliary converter 4, and the train power supply unit 5 is dissipated into the atmosphere. The water-cooled pipeline 212 is provided with a plurality of parallel branches, and the traction converter 3, the auxiliary converter 4 and the train power supply unit 5 are connected in parallel, so that the cooling water in one loop is only for the traction converter 3, and the auxiliary transformer One of the flow unit 4 and the train power supply unit 5 is cooled to avoid repeated use of the cooling water, thereby improving the overall cooling effect. When the cooling water exchanges heat with the air inside the cooling tower 22, a small amount of air enters the water-cooling pipeline 212. In order to avoid the effect of the air in the water-cooling pipeline 212 on the next heat dissipation, the present embodiment optionally enters the cooling water. Before the water pump 211, the water-cooling line 212 and the expansion water tank 213 are connected by a thin tube, and the air in the cooling water enters the expansion water tank 213 through the thin tube 216, and finally enters the atmosphere. When the cooling water exchanges heat with the air inside the cooling tower 22, the evaporation of the water vapor reduces the cooling water in the water-cooled pipeline 212. Alternatively, in the embodiment, after the cooling water flows out of the water pump 211, the water-cooled pipeline 212 is provided. The expansion water tank 213 is connected through another thin tube 216 through which the water in the expansion water tank 213 enters the water-cooling line 212, so that the amount of cooling water in the water-cooled line 212 is sufficient.

Optionally, the respective switching electrical components 6 of the traction converter 3, the auxiliary converter 4 and the train power supply unit 5 are disposed at the upper end of the cabinet 1. Traction converter 3, auxiliary converter 4 and train The respective switching electrical components 6 of the power supply unit 5 control the switches of the respective AC power sources, wherein the switching electrical components 6 of the traction converter 3 are shared by the two traction portions of the shaft one and the shaft two, and are disposed in the middle of the two traction portions. . The switch electrical component 6 is disposed at the upper end of the cabinet 1, which can reduce the damage of the switch electrical component 6 to other components.

Optionally, the respective high voltage interface assemblies 7 of the traction converter 3, the auxiliary converter 4 and the train power supply unit 5 are disposed at the lowermost end of the cabinet 1. The high-voltage interface assembly 7 is used for connecting the high-voltage line, and is disposed at the lowermost end of the cabinet 1, so that the operator can operate the wiring.

Alternatively, the respective sensor assemblies 8 of the traction converter 3, the auxiliary converter 4 and the train power supply unit 5 are arranged at the lower end of the cabinet 1. The sensor component 8 includes a current sensor for monitoring current, a voltage sensor for monitoring voltage, and a sensor component 8 disposed at the lower end of the cabinet 1 for the operator to view the monitoring.

Alternatively, the respective low-voltage interface assemblies 9 of the traction converter 3, the auxiliary converter 4 and the train power supply unit 5 are disposed at the upper left end of the cabinet 1, and the low-voltage interface assembly 9 is used to connect the low-voltage lines.

Optionally, the respective power module 10 and the capacitor module 11 of the traction converter 3, the auxiliary converter 4 and the train power supply unit 5 are disposed adjacent to each other, and the traction converter 3, the auxiliary converter 4 and the train power supply unit are arranged 5 respective power modules 10 are arranged from left to right in the middle of the cabinet 1, and the respective capacitive modules 11 of the traction converter 3, the auxiliary converter 4 and the train power supply unit 5 are arranged from left to right in the middle of the cabinet 1. .

The power converter 10 of the traction converter 3, the auxiliary converter 4 and the train power supply unit 5 are respectively used for converting the AC-DC energy of the respective power sources, thereby adjusting and controlling the traction motor, the auxiliary motor or the train power supply. Motor. The respective capacitance modules 11 of the traction converter 3, the auxiliary converter 4 and the train power supply unit 5 are used to maintain the stability of the respective intermediate voltages, thereby stabilizing the output voltage. The power module 10 and the capacitor module 11 of the traction converter 3, the auxiliary converter 4 and the train power supply unit 5 are arranged in the middle of the cabinet 1 from left to right to facilitate the connection of the water-cooled pipeline 212, and the power module 10 The intermediate position of the cabinet 1 can prevent the water-cooled pipeline 212 from being bent, and the bending of the water-cooled pipeline 212 affects the flow rate of the cooling water, so that the heat dissipation effect is not good. Preferably, the power module 10 and the capacitor module 11 both adopt a drawer structure, and the main components are placed at the front end of the converter cabinet, which can conveniently detect and repair the converter.

Optionally, the respective power modules 10 of the traction converter 3, the auxiliary converter 4 and the train power supply unit 5 are connected to the peripheral control circuit via a quick connector. Specifically, according to the peripheral control For the type of road, choose the appropriate quick connector, such as terminal block, control connector, quick water connector, quick electrical connector, etc., which can enable the power module 10 to be quickly inserted and removed, saving inspection and repair time, and preventing the use of the quick connector. Insert the wrong function.

Optionally, the respective low-voltage electrical components 12 of the traction converter 3, the auxiliary converter 4 and the train power supply unit 5 are disposed at the upper end of the cabinet 1, and the auxiliary filtering component 13 of the auxiliary converter 4 is disposed at the cabinet 1. Upper end. Specifically, the low-voltage electrical component 12 of the traction converter 3 is a Traction converter control unit (TCU), and the low-voltage electrical component 12 of the auxiliary converter 4 is an auxiliary converter control unit (Auxiliary converter). Control Unit (ACU), the low-voltage electrical component 12 of the train power supply unit 5 is a Power Supply Control Unit (PCU) and a relay, and the TCU, the ACU, and the PCU are respectively used to control the switches of the respective power modules 10, Implement input and output control. The auxiliary filter component 13 includes components such as a filter inductor and a filter capacitor. The auxiliary filter component 13 can effectively reduce the harmonic content and ensure the stability of the output power source.

Optionally, a front door may be respectively disposed on the cabinet 1 corresponding to the cooling component 21, the auxiliary converter 4, and the train power supply unit 5, and the cabinet 1 is disposed at a position corresponding to the traction converter 3 Two front doors, the cabinet 1 is also provided with a rear door. Optionally, a heat dissipation hole may be disposed on the front door and the rear door, and the position of the heat dissipation hole may be a position corresponding to the power module 10 of the traction converter 3, the auxiliary converter 4, and the train power supply unit 5, thereby further reducing the traction. The temperature of the converter 3, the auxiliary converter 4 and the train power supply unit 5.

The integrated converter cabinet provided in this embodiment includes a cabinet, a cooling system, a traction converter, an auxiliary converter, and a train power supply unit, wherein the cooling system includes a cooling component and a cooling tower, a traction converter, and an auxiliary converter. The train, the train power supply unit and the cooling assembly are arranged in the cabinet body, the cooling tower is arranged outside the cabinet, and the cooling unit is used for cooling the traction converter, the auxiliary converter and the train power supply unit. By integrating the train power supply unit into the converter cabinet, the vehicle assembly space is reduced, the vehicle layout is more compact, and the vehicle weight is reduced, the vehicle lightweight requirements are met, and the converter cooling is used. The component cools the train power supply unit to make it better.

Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the foregoing embodiments can still be A modification of the line, or equivalent replacement of some or all of the technical features, and the modifications or substitutions do not depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

An integrated converter cabinet, comprising: a cabinet, a cooling system, a traction converter, an auxiliary converter and a train power supply unit, wherein the cooling system comprises a cooling assembly and a cooling tower;

The traction converter, the auxiliary converter, the train power supply unit and the cooling assembly are disposed in the cabinet, and the cooling tower is disposed outside the cabinet;

The cooling assembly is configured to cool the traction converter, the auxiliary converter, and the train power supply unit.
The integrated converter cabinet according to claim 1, wherein the cooling assembly comprises: a water pump, a water-cooled pipeline, an expansion water tank, a temperature sensor, and a pressure sensor;

The water pump, the water cooling pipe, the expansion water tank, the temperature sensor, and the pressure sensor are disposed in the cabinet;

The water pump is disposed at a lowermost end of the cooling assembly, a water inlet of the water-cooling pipeline is connected to a water outlet of the water pump, and a water outlet of the water-cooling pipeline is connected to a water inlet of the cooling tower, The water outlet of the cooling tower is connected to the water inlet of the water pump, and the water-cooling pipeline connecting the two ports of the water pump is connected to the expansion water tank through two thin tubes, and the water cooling pipeline is provided with a plurality of parallel branches Cooling the plurality of parallel branches to the traction converter, the auxiliary converter, and the train power supply unit in parallel;

The temperature sensor is configured to monitor a temperature of the water-cooled pipeline;

The pressure sensor is used to monitor the pressure of the water-cooled line.
The integrated converter cabinet according to claim 1, wherein the respective switching electrical components of the traction converter, the auxiliary converter and the train power supply unit are disposed at an upper end of the cabinet.
The integrated converter cabinet of claim 3, wherein each of the traction converter, the auxiliary converter, and the train power supply unit has a high voltage interface assembly disposed at a lowermost end of the cabinet.
The integrated converter cabinet according to claim 4, wherein a sensor assembly of each of the traction converter, the auxiliary converter and the train power supply unit is disposed at a lower end of the cabinet.
The integrated converter cabinet of claim 5, wherein the traction converter The respective low-voltage interface assemblies of the auxiliary converter and the train power supply unit are disposed on the left side of the upper end of the cabinet.
The integrated converter cabinet according to claim 6, wherein the power module and the capacitor module of the traction converter, the auxiliary converter and the train power supply unit are disposed adjacent to each other, and the traction converter The respective power modules of the auxiliary converter and the train power supply unit are arranged from left to right in the middle of the cabinet, and the respective capacitance modules of the traction converter, the auxiliary converter and the train power supply unit are in the cabinet The middle is arranged from left to right.
The integrated converter cabinet according to claim 6, wherein the respective power modules of the traction converter, the auxiliary converter and the train power supply unit are connected to the peripheral control circuit through a quick connector.
The integrated converter cabinet according to claim 8, wherein a respective low-voltage electrical component of the traction converter, the auxiliary converter and the train power supply unit is disposed at an upper end of the cabinet, and the auxiliary converter The auxiliary filter assembly of the device is disposed at the upper end of the cabinet.
The integrated converter cabinet according to claim 1, wherein a position of the cabinet corresponding to the cooling assembly, the auxiliary converter and the train power supply unit is respectively provided with a front door on the cabinet Two front doors are disposed at positions corresponding to the traction converter, and the cabinet is further provided with a rear door.