CN109532570B - Three-phase power supply control system of short stator train - Google Patents
Three-phase power supply control system of short stator train Download PDFInfo
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- CN109532570B CN109532570B CN201910019410.3A CN201910019410A CN109532570B CN 109532570 B CN109532570 B CN 109532570B CN 201910019410 A CN201910019410 A CN 201910019410A CN 109532570 B CN109532570 B CN 109532570B
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- power supply
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- current collector
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M1/00—Power supply lines for contact with collector on vehicle
- B60M1/30—Power rails
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
Abstract
The invention discloses a three-phase power supply control system of a short stator train, and relates to the technical field of train power supply and operation control. The device comprises an AC-DC-AC variable frequency transformer, a power supply rail, an induction plate, a running rail, a vehicle-mounted current collector, a vehicle-mounted three-phase driving winding and a vehicle-mounted rectifying energy storage device, wherein the AC-DC-AC variable frequency transformer, the power supply rail, the induction plate and the running rail are arranged on the ground; the power supply rail is divided into a first power supply rail and a second power supply rail, and forms a three-phase alternating current power supply loop with the grounded running rail; the induction plate works with the three-phase driving windings of the train in an induction way; the AC-DC-AC variable frequency transformer supplies power to the train-mounted three-phase driving winding through the three-phase AC power supply loop and the current collector, and realizes three-phase driving and operation control of the train through frequency modulation and voltage regulation power supply of the ground AC-DC-AC variable frequency transformer; the vehicle-mounted rectifying energy storage device supplies power to auxiliary electric equipment of the train.
Description
Technical Field
The invention relates to the technical field of train power supply and operation control.
Background
Current short stator trains (also known as linear motor trains) are powered by a dc power supply system. On trains, electrical equipment plays an important role, the most important of which is the transmission system. The current short stator train transmission system is formed by connecting a vehicle-mounted inverter and a driving winding (short stator) in series, and achieves the purposes of driving a train and speed-regulating operation by frequency modulation and voltage regulation of the driving winding. Typically, in reality, train driving is performed by manual operation, and a few are automatic driving. There are some problems: firstly, in the electric equipment of the train, the transmission system occupies absolute components, and has large weight and large volume; the weight is large, so that the axle weight is increased, the line cost is high, the large volume occupies more valuable space of the train, and the power density and the efficiency are reduced; secondly, intelligent control and automatic driving (ATC) are necessary ways to replace manual driving, however, under the current train and power supply mode, the execution equipment required by driving is installed on the train, the train moves even moves at high speed, and the command and organization of automatic driving (ATC) originate from a ground control center, the two cannot be directly carried out, wireless system connection is needed, and the wireless system failure or malfunction must cause a certain safety risk.
The technical problem to be solved at present is that, on the one hand, the vehicle-mounted inverter is omitted, the weight of vehicle-mounted electric equipment is reduced, the axle weight is reduced, the light weight of the train is realized, the load bearing efficiency of the train is improved, the power density is improved, the vehicle-mounted electric equipment is suitable for running at a higher speed, and on the other hand, the automatic control and unmanned operation of the train are directly realized through ground power supply.
Disclosure of Invention
The invention aims to provide a three-phase power supply control system of a short stator train, which is capable of effectively reducing the axle weight, improving the train bearing efficiency, improving the power density, adapting to higher-speed operation, and simultaneously directly realizing automatic control and unmanned operation of the train through ground power supply by changing the power supply mode of the system and optimizing the system structure.
The aim of the invention is realized by the following technical scheme: a three-phase power supply control system of a short stator train comprises a running rail, a power supply rail paved in parallel with the running rail, a vehicle-mounted current collector, a vehicle-mounted three-phase driving winding and a vehicle-mounted rectifying energy storage device, wherein the vehicle-mounted current collector, the vehicle-mounted three-phase driving winding and the vehicle-mounted rectifying energy storage device are arranged on the train; an induction plate is arranged between the running rail and the power supply rail, and the power supply rail comprises a first power supply rail and a second power supply rail; the first power supply rail, the second power supply rail and the travelling rail form a three-phase alternating current power supply loop, and the power is supplied by an alternating current-direct current-alternating current variable-frequency transformer arranged on the ground; the power supply rail is divided into a first power supply rail and a second power supply rail; the first power supply rail, the second power supply rail and the travelling rail form a three-phase alternating current power supply loop, and the power is supplied by an alternating current-direct current-alternating current variable-frequency transformer on the ground; the running rail is grounded; the vehicle-mounted current collector comprises a first current collector, a second current collector and a third current collector, the tail ends of the first current collector, the second current collector and the third current collector are respectively connected with three-phase terminals of the vehicle-mounted three-phase driving winding of the train, and the front ends of the third current collector are respectively in contact with the first power supply rail, the second power supply rail and the travelling rail for receiving power; the AC-DC-AC variable frequency transformer device supplies power to the vehicle-mounted three-phase driving winding of the train through a first power supply rail, a first current collector, a second power supply rail, a second current collector, a running rail and a third current collector, and controls the start, stop and operation of the train by controlling the frequency modulation and the voltage regulation of the AC-DC-AC variable frequency transformer device; and the three-phase alternating current terminal of the vehicle-mounted rectifying energy storage device is connected with the three-phase terminal of the vehicle-mounted three-phase driving winding, and the direct current terminal of the vehicle-mounted rectifying energy storage device is connected with the auxiliary electric equipment.
Preferably, the running rails are divided into a first running rail and a second running rail connected in parallel with the first running rail. The first power supply rail and the second power supply rail are paved on a sleeper or a track bed between the first running rail and the second running rail, and the first power supply rail and the second power supply rail are connected in parallel through a wire; the first power supply rail and the second power supply rail are divided into a plurality of sections, and each section is powered by an independent AC-DC-AC variable-frequency transformer.
Preferably, the sensing plate is divided into a first sensing plate and a second sensing plate; the first induction plate is arranged between the first running rail and the power supply rail, and the second induction plate is arranged between the second running rail and the power supply rail; the first induction plate and the second induction plate are correspondingly arranged with the vehicle-mounted three-phase driving winding of the train, and induction work is achieved.
Preferably, the auxiliary electric equipment of the train mainly comprises a train air conditioner, illumination and the like; the auxiliary electric equipment and the vehicle-mounted rectifying energy storage device adopt the same voltage level.
Further preferably, the vehicle-mounted current collectors are all arranged at the end of the bogie of the train and insulated from the bogie of the train, and the first current collector, the second current collector and the third current collector of the vehicle-mounted current collectors are mutually insulated.
Compared with the prior art, the invention has the beneficial effects that:
1. the two power supply rails and the running rail (which can be grounded) form a three-phase alternating current power supply loop, the ground alternating current-direct current-alternating current variable frequency transformer device supplies power to the three-phase driving windings of the train through the three-phase alternating current power supply loop, optimization of a system power supply structure and a power supply mode is achieved, a vehicle-mounted inverter is omitted, the axle weight is effectively reduced, the light weight of the train is achieved, the power density is improved, and the bearing efficiency of the train is improved.
2. The ground AC-DC-AC variable frequency transformer supplies power to the three-phase driving windings of the train through the three-phase AC power supply loop, and the automatic control of train driving and running is directly carried out through frequency modulation and voltage regulation, so that unmanned driving is realized, and intelligent control and running are realized.
3. Low cost and good economic performance.
4. The ground AC-DC-AC variable frequency transformer device does not generate negative sequence current in the power grid, and ensures the quality of electric energy.
5. Advanced technology, excellent performance and easy implementation.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a second embodiment of the present invention.
Description of the embodiments
For better understanding of the inventive concept, the working principle of the present invention will be briefly described as follows: compared with the existing short stator train, the vehicle-mounted inverter can be omitted, the axle weight of the train is effectively reduced, the power density and the bearing efficiency are improved, the optimization of a system power supply structure and a power supply mode is realized, the three-phase driving windings of the train are supplied with power through frequency modulation and voltage regulation of a three-phase alternating current power supply loop on the ground to directly realize train driving and operation control, unmanned is realized, and power is supplied to auxiliary electric equipment of the train through a vehicle-mounted rectifying and energy storage device. The invention is further described below with reference to the drawings and detailed description.
Examples
As shown in fig. 1, the embodiment of the invention provides a three-phase power supply control system of a short stator train, which comprises an ac-dc-ac variable-frequency transformer 3, a power supply rail 1, an induction plate 7, a running rail R, a vehicle-mounted current collector 2, a vehicle-mounted three-phase driving winding 5 and a vehicle-mounted rectifying and energy-storing device 6, wherein the ac-dc-ac variable-frequency transformer 3, the power supply rail 1, the induction plate 7 and the running rail R are arranged between the running rail R and the power supply rail 1, and the vehicle-mounted current collector 2, the vehicle-mounted three-phase driving winding 5 and the vehicle-mounted rectifying and energy-storing device 6 are arranged on the train 4; the AC-DC-AC variable frequency transformer 3 supplies power to the vehicle-mounted three-phase driving winding 5 and the vehicle-mounted rectifying energy storage device 6 through the power supply rail 1, the running rail R and the vehicle-mounted current collector 2; the power supply rail 1 is divided into a first power supply rail 1a and a second power supply rail 1b; the first power supply rail 1a, the second power supply rail 1b and the running rail R form a three-phase alternating current power supply loop, and the power is supplied by an alternating current-direct current-alternating current variable-frequency transformer 3 on the ground; the running rail R is grounded; the vehicle-mounted current collector 2 comprises a first current collector 2a, a second current collector 2b and a third current collector 2c, the tail ends of the first current collector 2a, the second current collector 2b and the third current collector 2c are respectively connected with three-phase terminals of the vehicle-mounted three-phase driving winding 5 of the train 4, and the front ends of the first current collector are respectively in contact with the first power supply rail 1a, the second power supply rail 1b and the running rail R for receiving power; the ac-dc-ac variable frequency transformer 3 supplies power to the vehicle-mounted three-phase driving winding 5 of the train 4 through the first power supply rail 1a, the first current collector 2a, the second power supply rail 1b, the second current collector 2b, the running rail R and the third current collector 2c, and controls the start-stop and operation of the train 4 by controlling the frequency modulation and the voltage regulation of the ac-dc variable frequency transformer 3; the three-phase ac terminals of the vehicle-mounted rectifying and energy-storing device 6 are connected with the three-phase terminals of the vehicle-mounted three-phase driving winding 5, and the dc terminals thereof are connected with the auxiliary electric equipment (not shown in the figure, the same applies below).
The running rail R is divided into a first running rail R1 and a second running rail R2 connected with the first running rail R1 in parallel. The first power supply rail 1a and the second power supply rail 1b are paved on a sleeper or a track bed between the first running rail R1 and the second running rail R2.
In the embodiment of the present invention, the sensing plate 7 is divided into a first sensing plate 7a and a second sensing plate 7b; the first induction plate 7a is laid between the first running rail R1 and the power supply rail 1, and the second induction plate 7b is laid between the second running rail R2 and the power supply rail 1; the first induction plate 7a and the second induction plate 7b correspond to the vehicle-mounted three-phase driving winding 5 of the train 4, and perform induction work.
The auxiliary electric equipment of the train 4 mainly comprises a train air conditioner, illumination and the like; the auxiliary electric equipment and the vehicle-mounted rectifying energy storage device 6 adopt the same voltage level.
The vehicle-mounted current collectors 2 are all installed at the bogie end of the train 4 and are insulated from the bogie of the train 4, and the first current collector 2a, the second current collector 2b and the third current collector 2c of the vehicle-mounted current collectors 2 are mutually insulated.
The AC-DC-AC variable frequency transformer is powered by a three-phase cable of the substation.
Examples
As shown in fig. 2, the three-phase power supply control system of the short stator train comprises an ac-dc-ac variable-frequency transformer 3, a power supply rail 1, a running rail R, an induction plate 7 arranged between the running rail R and the power supply rail 1, a vehicle-mounted current collector 2, a vehicle-mounted three-phase driving winding 5 and a vehicle-mounted rectifying and energy storage device 6 which are arranged on the train 4; the AC-DC-AC variable frequency transformer 3 supplies power to the vehicle-mounted three-phase driving winding 5 and the vehicle-mounted rectifying energy storage device 6 through the power supply rail 1, the running rail R and the vehicle-mounted current collector 2; the power supply rail 1 is divided into a first power supply rail 1a and a second power supply rail 1b; the first power supply rail 1a, the second power supply rail 1b and the running rail R form a three-phase alternating current power supply loop, and the power is supplied by an alternating current-direct current-alternating current variable-frequency transformer 3 on the ground; the running rail R is grounded; the vehicle-mounted current collector 2 comprises a first current collector 2a, a second current collector 2b and a third current collector 2c, the tail ends of the first current collector 2a, the second current collector 2b and the third current collector 2c are respectively connected with three-phase terminals of the vehicle-mounted three-phase driving winding 5 of the train 4, and the front ends of the first current collector are respectively in contact with the first power supply rail 1a, the second power supply rail 1b and the running rail R for receiving power; the AC-DC-AC variable frequency transformer 3 supplies power to the train 4 vehicle-mounted three-phase driving winding 5 through a first power supply rail 1a, a first current collector 2a, a second power supply rail 1b, a second current collector 2b, a running rail R and a third current collector 2c, and controls the start, stop and operation of the train 4 by controlling the frequency modulation and the voltage regulation of the AC-DC variable frequency transformer 3; the three-phase alternating current terminal of the vehicle-mounted rectifying and energy-storing device 6 is connected with the three-phase terminal of the vehicle-mounted three-phase driving winding 5, and the direct current terminal of the vehicle-mounted rectifying and energy-storing device is connected with the auxiliary electric equipment.
The running rail R is divided into a first running rail R1 and a second running rail R2 connected with the first running rail R1 in parallel. The first power supply rail 1a and the second power supply rail 1b are paved on a sleeper or a track bed between the first running rail R1 and the second running rail R2.
In the embodiment of the present invention, the sensing plate 7 is divided into a first sensing plate 7a and a second sensing plate 7b; the first induction plate 7a is arranged between the first running rail R1 and the power supply rail 1, and the second induction plate 7b is arranged between the second running rail R2 and the power supply rail 1; the first induction plate 7a and the second induction plate 7b are correspondingly arranged with the vehicle-mounted three-phase driving winding 5 of the train 4, and induction work is performed.
The auxiliary electric equipment of the train 4 mainly comprises a train air conditioner, illumination and the like; the auxiliary electric equipment and the vehicle-mounted rectifying energy storage device 6 adopt the same voltage level.
The vehicle-mounted current collectors 2 are all installed at the bogie end of the train 4 and are insulated from the bogie of the train 4, and the first current collector 2a, the second current collector 2b and the third current collector 2c of the vehicle-mounted current collectors 2 are mutually insulated.
The AC-DC-AC variable frequency transformer is powered by a three-phase cable of the substation.
The main difference between the embodiment of the present invention and the first embodiment is that: the first power supply rail 1a and the second power supply rail 1b are divided into a plurality of sections, and each section is powered by an independent AC-DC-AC variable-frequency transformer device 3 so as to realize the section control of the operation of the train 4. In the specific embodiment of the invention, two adjacent sections are recorded as a section i and a section i+1 (i is more than or equal to 1), and each section is powered by an independent AC-DC-AC variable-frequency transformer 3, so that the train 4 can be controlled in a sectional manner. In order to ensure the safety and controllability of the train, each section is generally limited to only one train passing.
In summary, the invention optimizes the system structure by changing the power supply mode of the system, effectively reduces the weight of the vehicle-mounted equipment, effectively reduces the axle weight, realizes the light weight of the train, improves the bearing efficiency of the train, improves the power density, adapts to higher-speed operation, and simultaneously directly realizes the automatic control and unmanned operation of the train through ground power supply.
Claims (5)
1. A three-phase power supply control system of a short stator train comprises a running rail (R), a power supply rail (1) paved in parallel with the running rail (R), a vehicle-mounted current collector (2), a vehicle-mounted three-phase driving winding (5) and a vehicle-mounted rectifying energy storage device (6) which are arranged on the train (4); the method is characterized in that: an induction plate (7) is arranged between the running rail (R) and the power supply rail (1), and the power supply rail (1) comprises a first power supply rail (1 a) and a second power supply rail (1 b); the first power supply rail (1 a), the second power supply rail (1 b) and the running rail (R) form a three-phase alternating current power supply loop, and power is supplied by an alternating current-direct current variable frequency transformer (3) arranged on the ground; the running rail (R) is grounded; the vehicle-mounted current collector (2) comprises a first current collector (2 a), a second current collector (2 b) and a third current collector (2 c), the tail ends of the first current collector, the second current collector and the third current collector are respectively connected with three-phase terminals of a vehicle-mounted three-phase driving winding (5) of the train (4) through cables, and the front ends of the third current collector, the second current collector and the third current collector are respectively in contact with the first power supply rail (1 a), the second power supply rail (1 b) and the running rail (R) for receiving power; the AC-DC-AC variable frequency and voltage device (3) supplies power to a vehicle-mounted three-phase driving winding (5) of the train (4) through the first power supply rail (1 a) and the first current collector (2 a), the second power supply rail (1 b) and the second current collector (2 b), the running rail (R) and the third current collector (2 c), and controls the start-stop and the running of the train (4) by controlling the frequency modulation and the voltage regulation of the AC-DC-AC variable frequency and voltage device (3); the three-phase alternating current terminal of the vehicle-mounted rectifying and energy-storing device (6) is connected with the three-phase terminal of the vehicle-mounted three-phase driving winding (5), and the direct current terminal of the vehicle-mounted rectifying and energy-storing device is connected with auxiliary electric equipment.
2. The short stator train three-phase power supply control system according to claim 1, wherein: the running rails (R) comprise a first running rail (R1) and a second running rail (R2) which is connected in parallel with the first running rail (R1).
3. A short stator train three-phase power supply control system according to claim 2, characterized in that: the first power supply rail (1 a) and the second power supply rail (1 b) are paved on a sleeper or a track bed between the first running rail (R1) and the second running rail (R2); the first power supply rail (1 a) and the second power supply rail (1 b) are provided with sections according to train operation intervals, and each section is powered by an independent AC-DC-AC variable-frequency transformer (3).
4. A short stator train three-phase power supply control system according to claim 2, characterized in that: the induction plate (7) is divided into a first induction plate (7 a) and a second induction plate (7 b); the first induction plate (7 a) is paved between the first running rail (R1) and the power supply rail (1), and the second induction plate (7 b) is paved between the second running rail (R2) and the power supply rail (1); the first induction plate (7 a) and the second induction plate (7 b) are arranged corresponding to the vehicle-mounted three-phase driving winding (5) of the train (4), and are used for induction work.
5. The short stator train three-phase power supply control system according to claim 1, wherein: the vehicle-mounted current collectors (2) are arranged at the end heads of the bogie of the train (4) and are insulated from the bogie of the train (4), and the first current collector (2 a), the second current collector (2 b) and the third current collector (2 c) of the vehicle-mounted current collectors (2) are mutually insulated.
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| CN201910019410.3A CN109532570B (en) | 2019-01-09 | 2019-01-09 | Three-phase power supply control system of short stator train |
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| CN201910019410.3A CN109532570B (en) | 2019-01-09 | 2019-01-09 | Three-phase power supply control system of short stator train |
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| CN109532570B true CN109532570B (en) | 2023-04-28 |
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