WO2021189572A1 - Système de traction pour un train à sustentation magnétique et train - Google Patents

Système de traction pour un train à sustentation magnétique et train Download PDF

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Publication number
WO2021189572A1
WO2021189572A1 PCT/CN2020/085808 CN2020085808W WO2021189572A1 WO 2021189572 A1 WO2021189572 A1 WO 2021189572A1 CN 2020085808 W CN2020085808 W CN 2020085808W WO 2021189572 A1 WO2021189572 A1 WO 2021189572A1
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WO
WIPO (PCT)
Prior art keywords
traction
power supply
long stator
train
converter
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Application number
PCT/CN2020/085808
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English (en)
Chinese (zh)
Inventor
张丽
杨君
李颖华
刘曰峰
高明
Original Assignee
中车唐山机车车辆有限公司
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Publication date
Application filed by 中车唐山机车车辆有限公司 filed Critical 中车唐山机车车辆有限公司
Publication of WO2021189572A1 publication Critical patent/WO2021189572A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L13/00—Electric propulsion for monorail vehicles, suspension vehicles or rack railways; Magnetic suspension or levitation for vehicles
    • B60L13/03—Electric propulsion by linear motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L13/00—Electric propulsion for monorail vehicles, suspension vehicles or rack railways; Magnetic suspension or levitation for vehicles
    • B60L13/04—Magnetic suspension or levitation for vehicles

Definitions

  • This application relates to the technical field of rail vehicles, in particular, to a traction system of a maglev train and a rail train.
  • the high-speed maglev train uses a long stator linear synchronous motor for traction.
  • the secondary of the linear synchronous motor is distributed on both sides of the bogie.
  • the long stator sections of the linear synchronous motor are staggered and arranged on both sides of the track, and three traction modules are arranged on the ground.
  • the stator segments on both sides of the track are powered by three traction modules in a three-step staggered manner.
  • This traction power supply mode requires the secondary side of the linear synchronous motor to be installed on both sides of the rail train to ensure that the secondary side of the linear synchronous motor and the stator section react to the force, so that the design structure on both sides of the vehicle bogie must meet the traction demand.
  • the suspension design requirements must be used concurrently, resulting in a complex design of the bogie structure and an increase in the probability of failure.
  • the traction system of the traditional maglev train has a complex structure and high requirements on the bogie of the train, which is an urgent technical problem to be solved by those skilled in the art.
  • the embodiments of the present application provide a traction system for a maglev train and a rail train.
  • the traction system of a traditional maglev train has a complicated structure and a technical problem with high requirements for the bogie of the train.
  • the embodiment of the present application provides a traction system for a magnetic levitation train, including:
  • Linear synchronous motor the secondary of the linear synchronous motor is arranged in the middle of the train bogie; the long stator of the linear synchronous motor is laid between the two rails along the track, and the long stator is arranged at intervals in sequence.
  • Each of the long stator segments forms at least one traction power supply section, and the traction power supply section includes at least two long stator sections;
  • each of the traction power supply sections is configured with one traction power supply system for alternately supplying power to each long stator section in the traction power supply section along the forward direction of the train;
  • the long stator section when the long stator section is powered, it can generate a force with the secondary of the linear synchronous motor to generate train traction, and drive the maglev train to move forward.
  • a rail train includes the above-mentioned traction system.
  • the long stator of the motor is laid between the two rails along the track, and the installation position of the long stator is also one, and the installation requirements and installation complexity are low.
  • the long stator sections arranged at intervals are divided into at least one traction power supply section, the traction power supply section includes at least two long stator sections, and the traction power supply system alternately supplies power to each long stator section in the traction power supply section along the forward direction of the train .
  • the traction system of the maglev train of the embodiment of the present application has a simple structure, has low requirements on the bogie of the train, and has low installation requirements and installation complexity.
  • FIG. 1 is a schematic diagram of a traction system of a maglev train according to an embodiment of the application
  • Fig. 2 is a schematic diagram of current changes in the traction system of the maglev train shown in Fig. 1 alternately supplying power to each long stator section in the traction power supply section along the forward direction of the train.
  • FIG. 1 is a schematic diagram of a traction system of a magnetic levitation train according to an embodiment of the application.
  • the traction system of the magnetic levitation train of the embodiment of the present application includes:
  • Linear synchronous motor the secondary of the linear synchronous motor is arranged in the middle of the train bogie; the long stator of the linear synchronous motor is laid between the two rails along the track, and the long stator is arranged at intervals in sequence.
  • Each of the long stator segments 110 forms at least one traction power supply section, and the traction power supply section includes at least two long stator sections;
  • each of the traction power supply sections is configured with one traction power supply system for alternately supplying power to each long stator section in the traction power supply section along the forward direction of the train;
  • the long stator section 110 when the long stator section 110 is powered, it can generate a force with the secondary of the linear synchronous motor to generate train traction, and drive the maglev train to move forward.
  • the long stator of the motor is laid between the two rails along the track, and the installation position of the long stator is also one, and the installation requirements and installation complexity are low.
  • the long stator sections arranged at intervals are divided into at least one traction power supply section, the traction power supply section includes at least two long stator sections, and the traction power supply system alternately supplies power to each long stator section in the traction power supply section along the forward direction of the train .
  • the traction system of the maglev train of the embodiment of the present application has a simple structure, has low requirements on the bogie of the train, and has low installation requirements and installation complexity.
  • the track used for the maglev train is very long, and the long stator needs to be laid between the two rails along the entire length of the track. Therefore, multiple traction power supply systems are required to supply power to the train, and the long stator is divided into multiple sequential ones. Arranged traction power supply zones.
  • the traction system of the magnetic levitation train of the embodiment of the present application solves the technical problem of traction power supply between the long stator segments in the same traction power supply section.
  • the traction power supply system is arranged beside the track.
  • the traction power supply system is specifically used to ensure that the actual deviation between the actual value of the traction force of the train and the preset value of the constant speed traction force does not exceed the preset value when the train passes through two long stator segments that are alternately powered in the same traction power supply section. Scope;
  • the preset value of the constant speed traction force is the preset value of the traction force required by the train to maintain a constant speed.
  • the preset range can be set. Through the setting of the preset range, the actual value of the traction force of the train can be kept unchanged, so that the speed of the maglev train changes when the maglev train passes adjacent positions of two long stator sections in the same traction power supply section. Smaller.
  • Traction power supply system needs to have the following characteristics.
  • the traction power supply system includes:
  • each of the converter control switches 220 is alternately connected to the two traction converters;
  • the converter control switch 220 is used to control whether the long stator section connected to the converter control switch and the traction converter 210 form a circuit path.
  • the traction power supply system further includes:
  • the zone traction control unit 230 is communicatively connected with each of the converter control switches 220;
  • the zone traction control unit 230 is used for receiving control instructions issued by the train control system, and controlling the on and off of the converter control switch 220 according to the control instructions.
  • the zone traction control unit realizes the control of the on and off of the converter control switch.
  • the traction power supply system further includes:
  • a converter control unit 240 connected in one-to-one correspondence with the traction converter
  • the zonal traction control unit 230 is also used to send a power supply current control instruction to the converter control unit 240; the converter control unit 240 is used to control the connection of the switch corresponding to the long stator section. When it is on, the current output by the traction converter 210 is controlled according to the power supply current control command as the power supply current of the long stator section.
  • zone traction control unit and the converter control unit cooperate with each other to realize the control of the power supply current of the long stator section.
  • Fig. 2 is a schematic diagram of current changes in the traction system of the maglev train shown in Fig. 1 alternately supplying power to each long stator section in the traction power supply section along the forward direction of the train.
  • the n-th long stator section maintains the power supply according to the preset value of constant-speed current
  • the n-th long stator section is the long stator section where the train is currently located, and n is a positive integer greater than or equal to 1;
  • the zonal traction control unit turns on the converter control switch connected to the n+1th long stator section, and sends a current increase command to the converter control unit connected to the n+1th long stator section;
  • the traction converter connected to a long stator section receives the current increase command to start, the power supply current rises, and when the train starts to enter the n+1th long stator section, the traction converter connected to the n+1th long stator section
  • the power supply current of the device reaches the preset value of the constant speed current;
  • the preset starting position is set at a position close to the tail of the current long stator segment
  • the constant-speed current preset value is the current value corresponding to the constant-speed traction force preset value
  • the power supply current control command includes a current increase command .
  • the n-th long stator segment continues to supply power according to the preset value of constant-speed current, and at this time,
  • the traction converter connected to the n+1th long stator section receives the current increase command to start, and the power supply current rises.
  • the n+1th long stator section is connected to the The power supply current of the traction converter reaches the preset value of the constant speed current.
  • the train’s tractive force is the nth long stator section and the n+1th long stator section after the train starts from the preset starting position of the nth long stator section to the time when the train starts to enter the n+1th long stator section.
  • the traction force provided by the stator section is superimposed, and the train traction force changes little.
  • the partitioned traction control unit sends a current drop instruction to the converter control unit connected to the n-th long stator segment, and after the traction converter connected to the n-th long stator segment receives the current drop instruction, the power supply current drops, And when the train completely enters the n+1 long stator section, the power supply current of the traction converter connected to the n long stator section drops to zero;
  • the (n+1)th long stator segment maintains the power supply according to the preset value of the constant-speed current
  • the power supply current control command includes a current drop command.
  • the traction force of the train is the nth long stator section and the n+1th long stator section.
  • the traction provided by the long stator section is superimposed, and the change of the traction of the train is small.
  • zoned traction control unit and the converter control unit perform closed-loop control on the power supply current of the traction converter.
  • a current sensor needs to be provided for each traction converter, and the current value according to the current sensor is input to the zonal traction control unit to adjust the current value in the current rising command and the current falling command.
  • the length of the long stator segment is greater than the length of the train.
  • Two long stator sections for power supply are a preferred embodiment for configuring two traction power supply systems for power supply in the traction power supply section.
  • the traction power supply system further includes:
  • the traction rectifier unit 250 and the power supply device 260 are sequentially connected in series from the traction inverter to the external grid interface;
  • the power supply equipment 260 is used to step down the AC high voltage power connected to the external power grid interface to form low voltage AC power; the traction rectifier unit 250 is used to convert the connected low voltage AC power into low voltage DC power, which is provided to the traction Converter 210.
  • the traction rectifier unit and the power supply equipment realize the step-down rectification of the high-voltage alternating current connected to the external power grid to form low-voltage alternating current, which is provided to the traction converter.
  • the traction control system further includes a power supply control unit 270;
  • the power supply equipment 260 includes an input switch cabinet 261 and a traction transformer 262 connected in series;
  • the power supply control unit 270 is used to control the main switch of the input switch cabinet 261 to control whether the power supply device 260 supplies power.
  • the power supply control unit realizes the control of whether the power supply device supplies power.
  • the traction power supply system further includes a brake chopper 281 and a brake resistor 282 connected in series to form a loop with the traction rectifier unit 250;
  • the power supply control unit 270 is also used to connect the braking resistor 282 to perform braking when the train is electrically braking when the power supply device 26 supplies power, and disconnect the braking resistor 282 when the train is towed.
  • the braking resistor is connected for braking when the train is electrically braking. At this time, the traction converter cannot supply power, and the braking resistor is disconnected when the train is traction. At this time, the traction converter can supply power.
  • the traction power supply system is in a traction substation.
  • each traction converter has a capacity of 4 megawatts (MVA).
  • connection can also be detachable or integrated; it can be mechanical, electrical, or communication; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components. Or the interaction between two elements.
  • connection can also be detachable or integrated; it can be mechanical, electrical, or communication; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components. Or the interaction between two elements.
  • the "on" or “under” of the first feature of the second feature may include direct contact between the first feature and the second feature, or include the first feature.
  • the second feature is not in direct contact but through another feature between them.
  • the "above”, “above” and “above” of the first feature on the second feature include the first feature directly above and obliquely above the second feature, or it simply means that the first feature is higher in level than the second feature.
  • the “below”, “below” and “below” of the first feature of the second feature include the first feature directly above and diagonally above the second feature, or it simply means that the level of the first feature is smaller than the second feature.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

Système de traction pour un train à sustentation magnétique, le système de traction comprenant : un moteur électrique synchrone linéaire, un composant secondaire du moteur électrique synchrone linéaire étant disposé au milieu d'un bogie de train, un stator long du moteur électrique synchrone linéaire étant disposé entre deux barres de rail le long d'un rail, le stator long étant formé par une pluralité de segments de stator long (110) agencés séquentiellement à des intervalles, chaque segment de stator long (110) formant au moins une section d'alimentation en énergie de traction, et la section d'alimentation en énergie de traction comprenant lesdits deux segments de stator long (110) ; et des systèmes d'alimentation en énergie de traction, chaque section d'alimentation en énergie de traction étant configurée avec un système d'alimentation en énergie de traction, qui permet de fournir en alternance de l'énergie à chaque segment de stator long (110) dans la section d'alimentation en énergie de traction dans une direction d'avance d'un train. Lorsque de l'énergie est fournie au segment de stator long (110), une force d'action peut être générée entre le segment de stator long (110) et le composant secondaire du moteur électrique synchrone linéaire pour générer une force de traction de train de façon à entraîner un déplacement vers l'avant d'un train à sustentation magnétique. Les problèmes techniques d'un système de traction d'un train à sustentation magnétique classique qui sont complexes en matière de structure et selon lesquels les exigences relatives à un bogie de train sont élevées sont résolus. La présente invention concerne en outre un train comprenant le système de traction.
PCT/CN2020/085808 2020-03-24 2020-04-21 Système de traction pour un train à sustentation magnétique et train WO2021189572A1 (fr)

Applications Claiming Priority (2)

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CN202010211238.4 2020-03-24
CN202010211238.4A CN113442732B (zh) 2020-03-24 2020-03-24 一种磁悬浮列车的牵引系统及轨道列车

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Publication number Priority date Publication date Assignee Title
CN1781758A (zh) * 2004-11-10 2006-06-07 迅捷国际两合公司 用于操作磁悬浮列车的方法和装置
WO2008110478A2 (fr) * 2007-03-12 2008-09-18 Siemens Aktiengesellschaft Installation pour véhicule présentant un moteur linéaire à stator long s'étendant le long de la voie de circulation
CN101855403A (zh) * 2008-01-22 2010-10-06 蒂森克鲁伯快速运输有限公司 磁悬浮列车
CN103974849A (zh) * 2011-12-08 2014-08-06 马克斯·博格建筑两合公司 磁悬浮铁路的驱动装置
CN106828184A (zh) * 2017-04-06 2017-06-13 西南交通大学 无齿槽永磁同步直线电机驱动的高温超导磁悬浮车
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CN107521510A (zh) * 2017-08-11 2017-12-29 中车唐山机车车辆有限公司 磁悬浮列车的车下设备箱的安装组件及磁悬浮列车
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