JP2014053976A - Organized train - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce noise and vibration at the time of power storage, and to reduce time and effort for maintenance of an engine and a power generator.SOLUTION: An organized train 100 comprises two railway cars 1 and 2 connected to each other. The railway car 1 comprises: a converter device 21; an inverter device 22; four motors 15; and a power storage device 20. The railway car 2 comprises: an engine 30; and a power generator 31.

Description

  The present invention relates to a train train formed by connecting a plurality of vehicles.

  Patent Document 1 describes a train train formed by connecting a plurality of vehicles each having an engine, a generator, a converter device, an inverter device, an electric motor, and a power storage device.

Japanese Patent No. 4865443 (FIG. 1)

  In the train set described in Patent Document 1, an engine is mounted on each vehicle, and electric power is stored in the power storage device by driving the engine. For this reason, when storing electricity in the power storage device, engine noise and vibration occur in each vehicle. As a result, there arises a problem that makes passengers feel uncomfortable. Furthermore, since the engine and the generator are mounted on each vehicle, it takes time and effort to maintain these.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a train train that can reduce noise and vibration during power storage and can reduce maintenance work of an engine and a generator.

  The train train of the present invention includes an engine, a generator that generates AC power by the driving force of the engine, a converter device that converts AC power to DC power, an inverter device that converts DC power to AC power, A plurality of vehicles provided by dispersing an electric motor driven by AC power converted by an inverter device and a power storage device having a function of charging and discharging DC power are connected to each other, and the engine and the engine The generator is provided in the vehicle different from the vehicle in which the power storage device is provided.

  According to this, it is not necessary to provide an engine in a vehicle provided with a power storage device. For this reason, noise and vibration can be reduced as compared with those in which an engine is mounted on each vehicle. In addition, the maintenance work of the engine and the generator can be reduced.

  In the present invention, it is preferable that the converter device, the inverter device, and the electric motor are provided in the vehicle provided with the power storage device. As a result, the length of the electric wire connecting the power storage device, the converter device, the inverter device, and the electric motor can be shortened, and the handling of the electric wire is simplified.

  Moreover, in this invention, it is preferable that the said electrical storage apparatus, the said converter apparatus, the said inverter apparatus, and the said electric motor are arrange | positioned at the lower part of the said vehicle. As a result, the center of gravity of the vehicle is positioned below and is stable. For this reason, it becomes difficult for the vehicle to overturn during traveling.

  The present invention further includes an auxiliary power supply device that converts DC power into AC power, and an auxiliary device that includes an air conditioner and a lighting device that is driven by the AC power converted by the auxiliary power device. Preferably, the auxiliary device is provided in each of the vehicles, and the auxiliary power supply device is provided in the vehicle provided with the engine and the generator. Thereby, an auxiliary power supply device can be provided in an empty space of a vehicle provided with an engine and a generator, and the space can be used effectively.

  According to the train set of the present invention, it is not necessary to provide an engine in a vehicle provided with a power storage device. For this reason, noise and vibration can be reduced as compared with those in which an engine is mounted on each vehicle. In addition, the maintenance work of the engine and the generator can be reduced.

1 is a schematic side view of a train set according to an embodiment of the present invention. It is a figure when the train set shown in FIG. 1 is viewed from below. It is a block diagram which shows the electrical structure of the train set shown in FIG. It is a chart figure which shows the state of the energy consumption at the time of driving | running | working and stopping of the train set shown in FIG. 1, a power generation output, and charge / discharge.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

  The train train which is one embodiment of the present invention will be described below with reference to FIGS.

  The train set 100 is configured by connecting two vehicles 1 and 2 to each other by a connecting portion 3. As shown in FIG. 1, the vehicle 1 includes a vehicle body 11 and two carriages 12. The vehicle body 11 has a rectangular parallelepiped shape that is long in the traveling direction A. As shown in FIGS. 1 and 2, the carriage 12 is attached to a lower front portion and a lower rear portion in the traveling direction A of the vehicle body 11.

  Each carriage 12 has two axles 14 and four wheels 13 extending in a direction perpendicular to the traveling direction A, and supports the vehicle body 11 from below. The wheels 13 are fixed in the vicinity of both ends of each axle 14, and are rotatably supported by the carriage 12 via the axle 14.

  Each carriage 12 is provided with two motors (electric motors) 15. These motors 15 are driven by AC power converted by an inverter device 22 described later. A gear 16 is fixed to the tip of the drive shaft 15 a of the motor 15. The gear 16 is rotated by the motor 15. A gear 17 that meshes with the gear 16 is fixed to each axle 14 of the carriage 12. In this configuration, when the motor 15 is driven, the four wheels 13 are rotated together with the two axles 14 by the gears 15 and 16 in each carriage 12. As a result, the vehicle 1 travels in either the traveling direction A or the traveling direction B opposite to the direction A. Thus, the vehicle 1 is a driving vehicle. Note that the two motors 15 and the gears 16 and 17 may be provided only on one of the two carriages 12.

  As shown in FIGS. 1 to 3, the vehicle 1 is provided with a power storage device 20, a converter device 21, an inverter device 22, and an auxiliary device 23. The power storage device 20, the converter device 21, the inverter device 22, and the four motors 15 are connected to each other by electric wires D1 to D7 that supply electric power in the vehicle 1. The auxiliary device 23 is connected to the DC power unit 25 (see FIG. 3) by an auxiliary power supply device 32, an auxiliary device 33, and electric wires D10 and D11, which will be described later.

  The power storage device 20, the converter device 21, and the inverter device 22 are disposed in the lower portion of the vehicle 1, as shown in FIGS. More specifically, the lower surface of the vehicle body 11 is disposed between the two carriages 12. As described above, since the power storage device 20, the converter device 21, the inverter device 22, and the four motors 15 are arranged in the lower portion of the vehicle 1, the center of gravity of the vehicle 1 is positioned downward and is stable. For this reason, it becomes difficult for the vehicle 1 to overturn when traveling.

  As shown in FIG. 3, the converter device 21 receives, as input, three-phase AC power generated by a later-described generator 31 and converts it into DC power by rectification control using a switching element (not shown). Supply. The DC power unit 25 is located between the converter device 21 and the inverter device 22. The inverter device 22 receives the DC power from the DC power unit 25 and converts it into three-phase AC power by voltage / frequency variable (VVVF) control by a switching element (not shown). The four motors 15 are driven by the three-phase AC power, and further, the driving torque that can obtain the required acceleration performance is secured by the speed reducer, and then the vehicle 1 is accelerated / decelerated by transmitting the torque by the axle 14 of each carriage 12. Let

  The power storage device 20 is connected to the DC power unit 25, and the power storage device 20 is charged or discharged according to the relationship between the voltage value of the DC portion and the open end voltage value of the power storage device 20. That is, when the voltage value of the direct current portion is larger than the open-circuit voltage value of the power storage device 20, the power of the direct current portion is charged into the power storage device 20, and conversely, the voltage value of the direct current portion is the open circuit of the power storage device 20. When it is smaller than the end voltage value, the electric power of the power storage device 20 is discharged to the direct current portion.

  The auxiliary device 23 includes a lighting device 23 a and two air conditioners 23 b, and is disposed on the ceiling and the rooftop portion of the vehicle body 11. The lighting device 23a extends along the front-rear direction of the vehicle body 11. The two air conditioners 23b are arranged separately at the front and rear of the vehicle body 11. The auxiliary device 23 is driven by the three-phase AC power converted by the auxiliary power supply device 32. One or three or more air conditioners 23b may be provided for the vehicle 1.

  As shown in FIG. 3, the converter device 21 is connected to the engine 30 (described later), the inverter device 22, the power storage device 20, and the auxiliary power supply device 32 through signal lines S <b> 1 to S <b> 4. While monitoring, the amount of electrical storage of the electrical storage apparatus 20 is detected. Further, converter device 21 regenerates power generated by engine 30 and generator 31 (described later), power consumed by accelerating vehicle 1 with inverter device 22 and each motor 15, or regenerated by deceleration. It has a function of adjusting and controlling the electric power to maintain the amount of power stored in the power storage device 20 in an appropriate range. Specifically, converter device 21 drives engine 30 during traveling of train set 100 to keep the amount of power stored in power storage device 20 substantially constant.

  As shown in FIG. 1, the vehicle 2 also has a vehicle body 11 and two carriages 12 similar to the vehicle 1. The carriage 12 provided in the vehicle 2 is not provided with a motor 15. That is, the vehicle 2 travels by the vehicle 1 that is a driving vehicle. As shown in FIGS. 1 to 3, the vehicle 2 is provided with an engine 30, a generator 31, an auxiliary power supply device 32, and an auxiliary device 33. The generator 31 is connected to the converter device 21 by an electric wire D9. The auxiliary power supply device 32 is connected to the DC power unit 25 by an electric wire D8. The auxiliary device 33 is connected to the auxiliary power supply device 32 by an electric wire D10.

  The engine 30, the generator 31 and the auxiliary power supply device 32 are also arranged at the lower part of the vehicle 2. More specifically, the lower surface of the vehicle body 11 is disposed between the two carriages 12. For this reason, it becomes difficult for the vehicle 2 to overturn during traveling.

  The engine 30 is a power source of the train set 100. The generator 31 is connected to the drive shaft of the engine 30 and converts the rotational output of the engine 30 into three-phase AC power. The generated power is supplied to the converter device 21. Similarly to the auxiliary device 23, the auxiliary device 33 also has a lighting device 33 a and two air conditioners 33 b, and is arranged on the ceiling and the rooftop portion of the vehicle body 11. The auxiliary power supply 32 receives the DC power of the DC power unit 25 and converts it into three-phase AC power by voltage / frequency constant (CVCF) control by a switching element (not shown). The lighting devices 23a and 33a and the two air conditioners 23b and 33b of the auxiliary devices 23 and 33 are driven by the three-phase AC power.

  Next, the energy consumption amount, the power generation output, and the charge / discharge state when the train set 100 stops and travels will be described with reference to FIG. As shown in FIG. 4, in the train 100, the auxiliary devices 23 and 33 are driven when the train stops. At this time, the auxiliary devices 23 and 33 are driven by the converted power by the auxiliary power supply device 32 converted from the power from the power storage device 20. In addition, when the train 100 stops at the station, it is possible to stop power generation and not drive the engine 30, thereby preventing noise and vibration due to the driving of the engine 30 at the stop station.

  The train set 100 starts traveling toward the next station. At this time, the train train 100 travels when the inverter device 22 converts the electric power of the power storage device 20 into AC power and supplies it to the four motors 15. The train set 100 consumes the most energy at the time of power running, but the power storage device 20 stores electric power to cover this, so that the train train 100 can travel only by the power from the power storage device 20 even at the time of power run. Is possible. The auxiliary devices 23 and 33 are driven by the electric power from the power storage device 20 even when the train set 100 is traveling. Converter device 21 drives engine 30 when traveling of train 100 starts. At this time, the converter device 21 raises the power generation output that can be most efficiently generated by the engine 30 and the power generator 31, and then makes the power generation output constant. Thus, the fuel consumption of the engine 30 is improved by leveling the power generation output. Even during this power running, the power is stored in the power storage device 20 because the power is generated by the engine 30 and the power generator 31, but the amount of power stored is substantially reduced because the power consumption is larger.

  When the train train 100 coasts, the driving of the motor 15 is stopped, so that only the auxiliary devices 23 and 33 are driven. Also at this time, since the engine 30 is driven, power is stored in the power storage device 20. Since the power consumption in this case is only the driving of the auxiliary devices 23 and 33, the power generation amount exceeds the power consumption, and the power is stored in the power storage device 20. That is, it is possible to charge the power consumed by powering and the auxiliary devices 23 and 33.

  In front of the next stop station, the train set 100 is decelerated. At this time, regenerative power is generated by the motor 15 and supplied to the power storage device 20. At this time, converter device 21 places engine 30 in an idling state and stops power generation. Since the power consumption at this time is only driven by the auxiliary devices 23 and 33, the regenerative power exceeds the power consumption, the power is stored in the power storage device 20, the power consumed during power running, and the auxiliary device 23 at other times. , 33 can be used to charge the power consumed.

  As described above, according to the train set 100 of the present embodiment, the engine 30 and the generator 31 are provided in the vehicle 2, and the engine 30 and the generator 31 are not provided in the vehicle 1. Is provided with a power storage device 20 having a large capacity. Thus, since the engine 30 and the generator 31 are not provided in the vehicle 1, noise and vibration can be reduced as compared with those in which the engine is mounted on each vehicle. In addition, maintenance work for the engine 30 and the generator 31 can be reduced.

  Further, the converter device 21, the inverter device 22 and the four motors 15 are provided in the same vehicle 1. This makes it possible to shorten the length of the electric wire connecting the power storage device 20, the converter device 21, the inverter device 21, and the motor 15, and simplifies the handling of the electric wires D1 to D7.

  Further, the auxiliary power supply device 32 is provided in the vehicle 2 provided with the engine 30 and the generator 31. Thereby, the auxiliary power supply device 32 can be provided in the empty space of the vehicle 2, and the space can be effectively used.

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and various modifications can be made as long as they are described in the claims. For example, the train set may be configured by further connecting another vehicle to the train set 100. In this case, it is desirable that another vehicle is provided with at least a power storage device and an auxiliary device. Even in this case, since the number of engines and generators does not increase, the maintenance work is hardly increased. In addition, the train set may be configured by connecting two or more train sets 100 together. Even in this case, noise and vibration can be reduced as compared with the case where the engine is mounted on each vehicle, and the maintenance work of the engine and the generator can be reduced.

  The converter device 21, the inverter device 22, and the motor 15 may be provided in the vehicle 2 or may be provided in a distributed manner in the vehicles 1 and 2. Further, the power storage device 20, the converter device 21, the inverter device 22, and the motor 15 may be provided at the center and the upper portion of the vehicle 1 in the vertical direction. The auxiliary power supply device 32 and the auxiliary devices 23 and 33 may not be provided.

1, 2 Vehicle 15 Motor (electric motor)
DESCRIPTION OF SYMBOLS 20 Power storage device 21 Converter device 22 Inverter device 23, 33 Auxiliary device 23a, 33a Illuminating device 23b, 33b Air conditioning device 30 Engine 31 Generator 32 Auxiliary power supply device 100 Train train

Claims (4)

Engine,
A generator for generating AC power by the driving force of the engine;
A converter device for converting AC power into DC power;
An inverter device for converting DC power to AC power;
An electric motor driven by AC power converted by the inverter device;
A power storage device having a function of charging and discharging DC power, and a plurality of vehicles provided in a distributed manner are connected to each other,
The train is characterized in that the engine and the generator are provided in the vehicle different from the vehicle in which the power storage device is provided.   The train set according to claim 1, wherein the converter device, the inverter device, and the electric motor are provided in the vehicle provided with the power storage device.   The train set according to claim 2, wherein the power storage device, the converter device, the inverter device, and the electric motor are arranged in a lower portion of the vehicle. An auxiliary power supply device that converts DC power to AC power;
An auxiliary device including an air conditioner and a lighting device, which is driven by AC power converted by the auxiliary power device;
The auxiliary device is provided in each of the vehicles;
The train according to any one of claims 1 to 3, wherein the auxiliary power supply device is provided in the vehicle provided with the engine and the generator.