WO2020143188A1

WO2020143188A1 - Three-rail power supply control system for short-stator train

Info

Publication number: WO2020143188A1
Application number: PCT/CN2019/093244
Authority: WO
Inventors: 李群湛
Original assignee: 西南交通大学
Priority date: 2019-01-09
Filing date: 2019-06-27
Publication date: 2020-07-16
Also published as: JP7130141B2; CN109677301B; DE112019006610B4; CN109677301A; DE112019006610T5; JP2022517541A

Abstract

Disclosed by the present invention is a three-rail power supply control system for a short-stator train, which relates to the technical field of power supply and operation control of trains. Power supply rails in the system comprise a first power supply rail, a second power supply rail and a third power supply rail, wherein the first power supply rail is grounded to form a three-phase alternating current supply loop, and the third power supply rail and a travel track form a direct current supply loop; an induction board and a three-phase drive winding of a train induce work; an alternating current-direct current variable-frequency variable-voltage device is used for supplying power to the three-phase drive winding of the train by means of the three-phase alternating current supply loop and a current collector; and variable-frequency variable-voltage power supply is carried out by means of the grounded alternating current-direct current variable-frequency variable-voltage device so as to realize the driving and operation control over the train; and a direct current supply loop is electrified by means of a rectifying device on the ground, and train assisting electric equipment is supplied with power by means of the current collector. The weight and axle load of vehicle-mounted equipment are effectively reduced by changing a power supply mode of a traditional system and optimizing the structure of the system, the lightening of the train is realized, and the loading efficiency of the train is improved. Meanwhile, the automatic control and unmanned operation of the train are realized in the most economic manner.

Description

Three-track power supply control system for short stator train

Technical field

The invention relates to the technical field of train power supply and operation control.

Background technique

Current short stator trains (also known as linear motor trains) are powered by a DC power supply system. On the train, on-board electrical equipment occupies an important position, the most important of which is the transmission system. The current short-stator train drive system consists of a vehicle-mounted inverter and a drive winding (short stator) connected in series, and achieves the purpose of driving the train and adjusting the speed by adjusting the frequency and voltage of the drive winding. This process is called train driving. In addition, the on-board electrical equipment also includes an auxiliary power supply, which is used to supply power to auxiliary electrical equipment. Usually, in reality, train driving is done manually, and a few are driven automatically. There are some problems here: First, in the electrical equipment of the train, the transmission system and the auxiliary power supply have an absolute weight, and their weight is large and the volume is large; the weight increases the axle weight. The greater the axle weight, the higher the cost of the line and the bulk. Then it will occupy more valuable space of the train and reduce the power density and efficiency. The second is that intelligent control and automatic driving (ATC) are the only way to replace manual driving. However, in the current train and power supply modes, the execution equipment required for driving is installed on the train, the train is mobile, even high-speed mobile However, the commands and organization of automatic driving (ATC) come from the ground control center. The two cannot be directly carried out, and the wireless system needs to be contacted. Failure or failure of the wireless system will inevitably cause certain security risks.

The technical problem to be solved now is that, on the one hand, on-board inverters and auxiliary power supplies are omitted, the weight of on-board electrical equipment is reduced, the axle weight is reduced, the train is made lighter, the train carrying efficiency is improved, the power density is increased, and it is adapted to higher speed operation On the other hand, automatic control of the train operation and unmanned driving are directly achieved through ground power supply.

Summary of the invention

The purpose of the present invention is to provide a three-rail power supply control system for short-stator trains. By changing the power supply method of the traditional system, the system structure is optimized, the on-board inverter and auxiliary power supply are omitted, the axle weight is effectively reduced, and the weight of the train is reduced. Improve train carrying efficiency, increase power density, adapt to higher speed operation, and at the same time directly realize automatic control and unmanned driving of train operation through ground power supply.

The object of the present invention is achieved by the following technical solution: a three-rail power supply control system for short stator trains, including a running rail and a power rail laid parallel to the running rail and disposed between the running rail and the power rail Sensor board, ground-level AC-DC-AC frequency conversion transformer device, rectifier device, on-board current collector, three-phase drive winding and auxiliary power equipment installed on the train; the power supply rail includes the first power supply rail and the second power supply Rail, third power rail; the first power rail, the second power rail and the running rail constitute a three-phase AC power supply loop, powered by an AC-DC-AC frequency conversion transformer device installed on the ground; the walking rail is grounded The third power rail and the running rail constitute a DC power supply loop, which is powered by a rectifier installed on the ground; the on-board current collector includes a first current collector, a second current collector, a third current collector, and a fourth collection Electrical appliances; the tail ends of the first current collector, the second current collector, and the fourth current collector are connected to the three-phase terminals of the three-phase drive winding of the train through a cable. The front ends of the second current collector and the fourth current collector are in contact with the first power rail, the second power rail, and the running rail, respectively; at the same time, the tail end of the third current collector is connected to The auxiliary power equipment of the train is positively connected, the front end of the third current collector is in contact with the third power supply rail, and the tail end of the fourth current collector is connected to the auxiliary power equipment of the train through a cable Negative electrode connection; the AC-DC-AC frequency conversion transformer device passes the first power supply rail and the first current collector, the second power supply rail and the second current collector, the running rail and the fourth current collector to The three-phase drive winding of the train supplies power, and controls the start and stop and operation of the train by controlling the frequency conversion and voltage transformation of the AC-DC-AC frequency conversion transformer device; the rectifier device passes the third power supply rail and the The third current collector, the running rail, and the fourth current collector supply power to auxiliary electrical equipment of the train.

Preferably, the traveling rail includes a first traveling rail and a second traveling rail, and a second traveling rail connected in parallel with the first traveling rail.

Further preferably, the first power rail, the second power rail, and the third power rail are laid on a sleeper or a track bed between the first running rail and the second running rail; the first power rail, the second power rail It is divided into several sections, and each section is powered by an independent AC-DC-AC frequency conversion transformer device to realize the section control of train operation.

Preferably, the induction board is divided into a first induction board and a second induction board; the first induction board is laid between the first running rail and the power supply rail, and the second induction board is laid on the Between the second running rail and the power supply rail; the first induction plate and the second induction plate are provided corresponding to the three-phase drive windings of the train, and work in induction.

Preferably, the auxiliary electrical equipment of the train mainly includes train air conditioning, lighting, etc.; the auxiliary electrical equipment and the rectifier use the same voltage level.

Further preferably, the on-board current collectors are all provided at the end of the train bogie and are insulated from the train's bogie, and the first, second, third and fourth current collectors of the on-board current collector Insulated from each other.

Compared with the prior art, the beneficial effects of the present invention are:

One or two power supply rails and running rails (grounding) form a three-phase AC power supply loop, and the other power supply rails and running rails form a DC power supply loop. The ground AC-DCAC variable frequency transformer device provides the train with three-phase drive windings through the three-phase AC power supply loop Power supply, the ground rectifier provides train auxiliary power through the DC power supply loop, realizes the optimization of the system power supply structure and power supply mode, eliminates the vehicle-mounted inverter and auxiliary power supply, effectively reduces the train axle load, realizes the weight reduction of the train, and increases the power density. Improve train carrying efficiency.

2. The three-phase AC power supply circuit supplies power to the three-phase drive winding of the train through the ground AC-DC-AC frequency conversion transformer device, and directly controls the automatic drive and operation of the train to realize unmanned driving and intelligent control and operation.

3. Low cost and good economic performance.

4. Auxiliary electrical equipment uses the same voltage level, without the need for voltage conversion in the vehicle equipment, which is convenient and concise.

Fifth, the ground AC-DC-AC frequency conversion transformer device and rectifier device do not generate negative sequence current in the power grid to ensure power quality.

Sixth, advanced technology, superior performance, easy to implement.

BRIEF DESCRIPTION

FIG. 1 is a schematic structural diagram of Embodiment 1 of the present invention.

FIG. 2 is a schematic structural view of Embodiment 2 of the present invention.

detailed description

In order to better understand the creative ideas of the present invention, the working principle of the present invention is briefly described as follows: compared with existing short-stator trains, on-board electrical equipment such as on-board inverters and auxiliary power supplies can be eliminated, effectively reducing train axle weight and increasing power Density and load-bearing efficiency, at the same time, separate large-capacity drive (traction) power and small-capacity auxiliary power, and are powered by three-phase AC and DC, respectively, complement each other, coordinate power supply, and optimize the system power supply structure and power supply mode. Through the three-phase AC power supply circuit on the ground, the train three-phase drive winding frequency modulation and voltage regulation power supply directly drive and control the train operation to achieve unmanned driving. The present invention will be further described below with reference to the drawings and specific embodiments.

Example one

As shown in FIG. 1, an embodiment of the present invention provides a three-track power supply control system for a short stator train. The system includes a running rail R, a power supply rail 1 laid in parallel with the running rail R, and The induction board 8 between the power supply rails 1, the AC-DC-AC frequency conversion transformer device 3 and the rectifier device 4 provided on the ground, the vehicle-mounted current collector 2, the three-phase drive winding 6 and the auxiliary power equipment 7 provided on the train 5; The AC-DC-AC frequency conversion transformer 3 and the rectifier 4 supply power to the three-phase drive winding 6 of the train and the auxiliary electrical equipment 7 through the power supply rail 1, the running rail R and the on-board current collector 2, respectively; the power supply rail 1 includes the first power supply Rail 1a, second power supply rail 1b, and third power supply rail 1c; the first power supply rail 1a, the second power supply rail 1b and the running rail R constitute a three-phase AC power supply circuit, which is formed by the AC and DC The variable frequency transformer device 3 supplies power; the running rail R is grounded; the third power rail 1c and the running rail R form a DC power supply loop, which is powered by a rectifier device 4 installed on the ground; A current collector 2a, a second current collector 2b, a third current collector 2c and a fourth current collector 2d; the ends of the first current collector 2a, the second current collector 2b and the fourth current collector 2d pass The cable is connected to the three-phase terminal of the three-phase drive winding 6 of the train 5, the front ends of the first current collector 2a, the second current collector 2b and the fourth current collector 2d are respectively connected to the first power supply rail 1a , The second power supply rail 1b and the running rail R are in contact with and receive electricity; meanwhile, the tail end of the third current collector 2c is connected to the positive electrode of the auxiliary power equipment 7 of the train 5 through a cable, and the third The front end of the current collector 2c is in contact with the third power supply rail 1c to receive power, and the tail end of the fourth current collector 2d is connected to the negative electrode of the auxiliary power equipment 7 of the train 5 through a cable; The device 3 passes the first power supply rail 1a and the first current collector 2a, the second power supply rail 1b and the second current collector 2b, the traveling rail R and the fourth current collector 2d to the train The three-phase drive winding 6 of 5 supplies power, and controls the start and stop and operation of the train 5 by controlling the frequency conversion and voltage transformation of the AC-DC-AC frequency conversion transformer device 3; the rectifier device 4 passes the third power supply rail 1c The third current collector 2c, the running rail R, and the fourth current collector 2d supply power to the auxiliary power equipment 7 of the train 5.

In the embodiment of the present invention, the traveling rail R includes a first traveling rail R1 and a second traveling rail R2; the first traveling rail R1 and the second traveling rail R2 are connected in parallel through wires. The first power supply rail 1a, the second power supply rail 1b, and the third power supply rail 1c are laid on the sleeper or track bed between the first running rail R1 and the second running rail R2.

In the embodiment of the present invention, the induction board 8 is divided into a first induction board 8a and a second induction board 8b; the first induction board 8a is laid between the first running rail R1 and the power supply rail 1 , The second induction plate 8b is laid between the second running rail R2 and the power supply rail 1; the first induction plate 8a and the second induction plate 8b and the three-phase drive winding 6 of the train 5 Corresponding setting, induction work.

The auxiliary electrical equipment 7 of the train 5 mainly includes train air conditioning, lighting, etc.; the auxiliary electrical equipment 7 and the rectifier 6 use the same voltage level.

The on-board current collectors 2 are all installed at the end of the bogie of the train 5 and are insulated from the bogie of the train 5, the first current collector 2a, the second current collector 2b, the third current collector 2c and the first The four current collectors 2d are insulated from each other.

Both the AC-DC-AC frequency conversion transformer device 3 and the rectifier device 4 are powered by a three-phase cable of a substation.

Example 2

As shown in FIG. 2, a three-rail power supply control system for a short stator train includes a running rail R, a power supply rail 1 laid in parallel with the running rail R, and a power rail 1 disposed between the running rail R and the power rail 1 Induction board 8, ground-level AC-DC-AC frequency conversion transformer 3 and rectifier 4 and vehicle-mounted current collector 2, 3-phase drive winding 6 and auxiliary electrical equipment 7 installed on the train 5; AC-DC AC frequency conversion transformer 3 and the rectifier 4 respectively supply power to the three-phase drive winding 6 of the train and auxiliary power equipment 7 through the power supply rail 1, the running rail R and the on-board current collector 2; the power supply rail 1 includes a first power supply rail 1a and a second power supply Rail 1b, third power supply rail 1c; the first power supply rail 1a, the second power supply rail 1b and the running rail R constitute a three-phase AC power supply circuit, powered by the AC-DC-AC frequency conversion transformer device 3 provided on the ground The traveling rail R is grounded; the third power rail 1c and the traveling rail R constitute a DC power supply loop, which is powered by a rectifier 4 provided on the ground; the vehicle-mounted current collector 2 includes a first current collector 2a, a The second current collector 2b, the third current collector 2c and the fourth current collector 2d; the tail ends of the first current collector 2a, the second current collector 2b and the fourth current collector 2d are connected to the train 5 through a cable The three-phase terminals of the three-phase drive winding 6 are connected, and the front ends of the first current collector 2a, the second current collector 2b and the fourth current collector 2d are respectively connected to the first power supply rail 1a and the second power supply The rail 1b and the running rail R are in contact with and receive electricity; meanwhile, the tail end of the third current collector 2c is connected to the positive electrode of the auxiliary power equipment 7 of the train 5 through a cable, and the front end of the third current collector 2c is connected to The third power supply rail 1c contacts and receives power, and the tail end of the fourth current collector 2d is connected to the negative electrode of the auxiliary power equipment 7 of the train 5 through a cable; the AC-DC-AC frequency conversion transformer device 3 supplies power through the first Three-phase drive windings of the rail 1a and the first current collector 2a, the second power supply rail 1b and the second current collector 2b, the running rail R and the fourth current collector 2d to the train 5 6 power supply, and control the start and stop and operation of the train by controlling the AC-DC-AC frequency conversion transformer 3; the rectifier 4 passes through the third power supply rail 1c and the third current collector 2c. The running rail R and the fourth current collector 2d supply power to the auxiliary electrical equipment 7 of the train 5

The main difference between the embodiment of the present invention and the above-mentioned embodiment one is that the first power supply rail 1a and the second power supply rail 1b are divided into several sections, and each section is powered by an independent AC-DC-AC frequency conversion transformer 3 to Realize the section control of the train 5 operation. In a specific embodiment of the present invention, two adjacent segments are recorded as segment i and segment i+1 (i is greater than or equal to 1), and each segment is powered by an independent AC-DC-AC frequency conversion transformer 3 to facilitate segmentation Control the train 5. In order to ensure safe and controllable trains, each section is generally limited to one train.

In the embodiment of the present invention, the traveling rail R includes a first traveling rail R1 and a second traveling rail R2; the first traveling rail R1 and the second traveling rail R2 are connected in parallel. The first power supply rail 1a, the second power supply rail 1b, and the third power supply rail 1c are laid on the sleeper or track bed between the first running rail R1 and the second running rail R2.

In the embodiment of the present invention, the induction board 8 is divided into a first induction board 8a and a second induction board 8b; the first induction board 8a is laid between the first running rail R1 and the power supply rail 1 , The second induction plate 8b is laid between the second running rail R2 and the power supply rail 1; the first induction plate 8a and the second induction plate 8b and the three-phase drive winding 6 of the train 5 Correspondence, induction work.

Both the AC-DC-AC frequency conversion transformer and the rectifier are powered by the three-phase cable of the substation.

In summary, by changing the power supply mode of the traditional system, the present invention optimizes the system structure, effectively reduces the weight of on-board equipment, effectively reduces the axle weight, realizes the weight reduction of the train, improves the train carrying efficiency, increases the power density, and adapts to higher Speed operation, meanwhile, the automatic control and unmanned driving of the train can be realized directly through the ground power supply.

Claims

A three-rail power supply control system for short stator trains, including a running rail (R), a power supply rail (1) laid in parallel with the running rail (R), and the power rail (1) provided on the running rail (R) and the power rail (1) Between the induction board (8), the AC-DC-AC frequency conversion transformer (3) and the rectifier (4) installed on the ground, the on-board current collector (2) and the three-phase drive winding (6) installed on the train (5) ) And auxiliary power equipment (7), characterized in that the power supply rail (1) includes a first power supply rail (1a), a second power supply rail (1b), a third power supply rail (1c); the first The power supply rail (1a), the second power supply rail (1b) and the running rail (R) constitute a three-phase AC power supply loop, which is powered by an AC-DC-AC frequency conversion transformer (3) installed on the ground; the running rail (R) grounding; the third power rail (1c) and the running rail (R) form a DC power supply loop, which is powered by a rectifier (4) installed on the ground; the on-board collector (2) includes a first Current collector (2a), second current collector (2b), third current collector (2c) and fourth current collector (2d); the first current collector (2a), the second current collector (2b) and The tail end of the fourth current collector (2d) is connected to the three-phase terminal of the three-phase drive winding (6) of the train (5) through a cable, the first current collector (2a), the second current collector The front ends of the electrical appliance (2b) and the fourth current collector (2d) are in contact with the first power supply rail (1a), the second power supply rail (1b) and the running rail (R) to receive power; the first The tail end of the third current collector (2c) is connected to the positive electrode of the auxiliary power equipment (7) of the train (5) through a cable, and the front end of the third current collector (2c) is connected to the third power supply rail (1c) In contact with power, the tail end of the fourth current collector (2d) is connected to the negative electrode of the auxiliary power equipment (7) of the train (5) through a cable; the AC-DC-AC frequency conversion transformer device (3) passes through the first Power supply rail (1a) and the first current collector (2a), the second power supply rail (1b) and the second current collector (2b), the running rail (R) and the fourth current collector (2d) supply power to the three-phase drive winding (6) of the train (5), and control the start and stop of the train (5) by controlling the frequency conversion and transformation of the AC-DC-AC frequency conversion transformer device (3) And operation; the rectifier (4) passes through the third power supply rail (1c) and the third current collector (2c), the running rail (R) and the fourth current collector (2d) The auxiliary electric equipment (7) of the train (5) supplies power.
A three-track power supply control system for short-stator trains according to claim 1, characterized in that the running rail (R) includes a first running rail (R1) and a second parallel to the first running rail (R1) Walking track (R2).
A three-rail power supply control system for short-stator trains according to claim 1 or 2, characterized in that the first power rail (1a), the second power rail (1b), and the third power rail (1c) are all A sleeper or track bed laid between the first running rail (R1) and the second running rail (R2); the first power rail (1a) and the second power rail (1b) are arranged in sections according to the train running section, Each section is powered by an independent AC-DC-AC frequency conversion transformer (3).
A three-track power supply control system for short-stator trains according to claim 1, characterized in that the induction board (8) is divided into a first induction board (8a) and a second induction board (8b); the first An induction board (8a) is laid between the first running rail (R1) and the power supply rail (1), and the second induction board (8b) is laid on the second running rail (R2) and the power supply Between the rails (1); the first induction plate (8a) and the second induction plate (8b) are arranged corresponding to the three-phase drive windings (6) of the train (5).
A three-track power supply control system for short-stator trains according to claim 1, characterized in that: the auxiliary power equipment (7) of the train (5) includes train air conditioning and lighting; the auxiliary power equipment (7) ) Use the same voltage level as the rectifier (4).
A three-track power supply control system for short-stator trains according to claim 1, characterized in that the on-board current collectors (2) are all provided at the end of the bogie of the train (5) and are connected to the bogie of the train (5) Insulation, the first collector (2a), the second collector (2b), the third collector (2c) and the fourth collector (2d) of the vehicle-mounted collector (2) are mutually insulated.