JPH05168103A - Auxiliary power supply for magnetic levitation vehicle - Google Patents

Abstract

PURPOSE:To obtain an auxiliary power supply suitable for magnetic levitation vehicle in which power can be fed into a vehicle independently from external power supply and polution, e.g. vibration, noise, exhaust gas, can be avoided while realizing downsizing. CONSTITUTION:A wind tunnel 22 is mounted on a magnetic levitation vehicle and a windmill 25 for driving a vehicle power supply generator 24 is installed in the wind tunnel 22. When the magnetic levitation vehicle is traveling, air flow taken in through an air take-in port 21 of the wind tunnel 22 rotates the windmill 25 and then discharged through an air discharge port 23. When the generator 24 is coupled with the windmill 25 to constitute an auxiliary power supply, it is not required to introduce power externally through a current collector and vibration, noise and discharge gas associated with engine generator can be avoided while realizing downsizing. When the magnetic levitation vehicle is stopped or traveling at low speed, power to be generated from the windmill decreases and thereby a current collector, housed in the vehicle, is stretched outward in order to collect power and supplementing the deficiency of power.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an auxiliary power supply device for a magnetically levitated vehicle that supplies electric power consumed inside a magnetically levitated vehicle.

[0002]

2. Description of the Related Art Taking a railway vehicle as an example, a lot of electric power is used to control the operation of the railway vehicle, to communicate with each other inside the vehicle and to communicate with the outside of the vehicle, and to drive the lighting and the air conditioner. Although required, the power supply device mounted on the railway vehicle to supply the power consumption in the vehicle is generally called an auxiliary power supply device. When the railway vehicle is an electric vehicle, an inverter or the like composed of a motor generator or a semiconductor switch element is an auxiliary power supply device, and electric power taken from an overhead wire via a current collector serves as an energy source of the auxiliary power supply device. If the railcar is a railcar, electric power cannot be introduced from the overhead line, so a generator driven by a diesel engine is often installed as an auxiliary power supply device.

FIG. 5 is a block diagram of a conventional auxiliary power supply device applied to a magnetic levitation vehicle. As shown in FIG. 5, the magnetically levitated vehicle 5 is levitated by magnetism, and the distance between the track surface 2 and the vehicle floor surface 6, that is, the flying height is H. Magnetic levitation vehicle 5
Has no wheels (actually it has wheels for low speed running,
This wheel is not used when traveling at high speeds) and travels at high speed without contact. By the way, even if the propulsion electric power required for traveling of the magnetically levitated vehicle is introduced from the outside by using a contact type current collector such as a pantograph, it is impossible to collect the electric power at a high speed exceeding several hundred kilometers per hour. Therefore, a magnetically levitated vehicle runs with the propulsive force obtained by magnetic induction without using a current collector. Therefore, the auxiliary power supply does not use the current collector (it is difficult to collect the current by the current collector when traveling at high speed as described above), but the auxiliary power generator 11 and the diesel engine 12 installed independently in the vehicle assist the operation. A power supply device is configured, and from this, an air conditioner 13, headlights 14, interior lighting 1
Power is supplied to 5th grade.

[0004]

As described above, the magnetically levitated vehicle removes contact portions such as wheels and pantographs by floating the vehicle body by magnetism so as to travel at high speed as described above. Will be installed as an auxiliary power supply. On the other hand, in a magnetically levitated vehicle, it is desirable to reduce the total weight of the vehicle body as much as possible in order to secure the flying height H, but there is no choice but to mount an auxiliary power supply device composed of a heavy diesel engine, and fuel and There is an inconvenience that the weight of cooling water and the like increases. Further, the diesel engine generator has a problem that vibration and noise are generated during operation and harmful exhaust gas is generated.

Therefore, an object of the present invention is to supply electric power to the inside of the vehicle independently without introducing electric power from the outside, and to be compact and lightweight, and to avoid the generation of pollution such as vibration, noise and exhaust gas. To obtain an optimum auxiliary power supply device for a levitating vehicle.

[0006]

In order to achieve the above object, an auxiliary power supply device for a magnetically levitated vehicle according to the present invention is provided with an air intake port for taking in air during traveling of the magnetically levitated vehicle. In the magnetic levitation vehicle, the wind turbine is rotated by the flow of air taken in from the air intake port or the flow of air taken in through the air volume adjusting means provided in the air intake port, and the generator is driven by this wind turbine. Although the power consumption is covered, the magnetic levitation vehicle is provided with a current collector that can be extended to the outside of the vehicle body if necessary, and the wind turbine is stopped while the magnetic levitation vehicle is stopped or running at low speed. It is intended to supplement the shortage of electric power by using this current collector.

[0007]

According to the present invention, the magnetic levitation vehicle is provided with the wind tunnel, and the wind turbine for driving the in-vehicle power supply generator is installed in the wind tunnel. While the magnetic levitation vehicle is traveling, the airflow taken from the air intake port of the wind tunnel is discharged from the air discharge port after rotating the wind turbine. If the auxiliary power supply device is configured by connecting the generator to the wind turbine, there is no need to use the current collector to introduce electric power from outside the vehicle,
Moreover, it does not generate vibration, noise, or exhaust gas in the case of an engine generator, and can be made compact and lightweight. Furthermore, since the electric power generated by the wind turbine decreases when the magnetic levitation vehicle is stopped or traveling at a low speed, it is assumed that the current collector stored inside the vehicle is extended to the outside to collect the insufficient electric power. To do.

[0008]

1 is a block diagram showing a first embodiment of the present invention, showing a part of a magnetic levitation vehicle. This Figure 1
In the first embodiment shown in FIG. 2, the air intake port 2 is provided at the bottom of the vehicle body.
1, a wind tunnel 22 and an air exhaust port 23 are provided, and an air flow is introduced into the wind tunnel 22 from the space between the track surface 2 which is H and is magnetically levitated during high-speed traveling and the vehicle floor surface 6, This wind tunnel 22
The propeller wind turbine 25 installed therein is rotated, and electric power for vehicle interior is obtained from the generator 24 coupled to the propeller wind turbine 25. Further, if a control device (not shown) that controls the propeller pitch of the propeller wind turbine 25 according to the traveling speed of the magnetic levitation vehicle is added, the rotation speed control of the generator 24 becomes possible. Although the wind tunnel 22 in the first embodiment or each of the following embodiments is illustrated as being located at the bottom of the vehicle body, it does not matter if the wind tunnel 22 is located at any position on the vehicle body. Of course.

FIG. 2 is a block diagram showing a second embodiment of the present invention. The track surface 2, the vehicle floor surface 6, the air intake port 21, which constitutes the second embodiment shown in FIG. Wind tunnel 22,
The names, uses, and functions of the air outlet 23, the generator 24, and the propeller wind turbine 25 are the same as in the case of the first embodiment described above with reference to FIG.

In the second embodiment shown in FIG. 2, the wind tunnel 22
An air volume control valve 26 that adjusts the amount of air taken in from the air intake 21 is provided inside. The rotation speed of the generator 24 fluctuates due to changes in the traveling speed of the magnetically levitated vehicle and changes in the power consumption inside the vehicle. Therefore, by providing the air volume control valve 26 and adjusting the air volume to the propeller wind turbine 25, it is possible to suppress fluctuations in the rotation speed of the generator 24 and stabilize the output. If the traveling speed of the vehicle is high and it is necessary to reduce the air volume, the air volume control valve 26 may be rotated counterclockwise in the case of FIG. 2, and may be rotated in the opposite direction to increase the air volume. Good. Further, by using the air volume control valve 26 and the above-mentioned propeller pitch control device together, it becomes possible to stabilize the generator output to a higher degree.

FIG. 3 is a block diagram showing a third embodiment of the present invention. The track surface 2, the vehicle floor surface 6, the air intake port 21, which constitutes the third embodiment shown in FIG. Wind tunnel 22,
The names, uses, and functions of the air outlet 23 and the generator 24 are the same as those in the first embodiment described in FIG. 1, and the names, uses, and functions of the air volume control valve 26 are described in FIG. Since this is the same as the case of the second embodiment, these explanations are omitted.

In the third embodiment shown in FIG. 3, the wind tunnel 22
Instead of the propeller wind turbine 25, a cylindrical wind turbine 27 such as a Savonius wind turbine is installed therein. The energy that can be extracted from the wind turbine is proportional to the rotating area of the wind turbine. Therefore, if the axial length of the cylindrical wind turbine 27 is increased to the full width of the magnetic levitation vehicle, the rotation area does not decrease even if the diameter of the cylindrical wind turbine 27 is reduced, and therefore it can be taken out from the wind turbine. Energy will not be reduced. If the diameter of the cylindrical wind turbine 27 is reduced, the wind tunnel 22 is reduced, so that the height of the vehicle body can be reduced or the effective volume inside the vehicle body can be increased. In the third embodiment shown in FIG. 3, the torque generated by the cylindrical wind turbine 27 is transmitted to the generator 2 via the transmission device 28.
4, the rotary shaft of the cylindrical wind turbine 27 and the rotary shaft of the generator 24 are arranged in a straight line (the axial length of the cylindrical wind turbine 27 becomes shorter by that amount), and the transmission device 28 is provided. It can be omitted.

FIG. 4 is a block diagram showing a fourth embodiment of the present invention. This fourth embodiment is used in combination with any of the above-mentioned first, second or third embodiments. FIG. 3 is a configuration diagram of the magnetic levitation vehicle on the track seen from above. Since the auxiliary power supply device in each of the above-described embodiments uses the airflow generated while the magnetic levitation vehicle is running as an energy source, the auxiliary power supply when the magnetic levitation vehicle is stopped or running at low speed is used. The output of the power supply device is zero or a slight value, and it may not be possible to satisfy the electric power demand in the vehicle. Therefore, in such a case, the current collector 32 stored in the vehicle is extended to the outside, and the current collector 32 is brought into contact with the power supply conductor 31 provided on the side wall 3 of the track.
Electric power is introduced from the current collector 32 to the power converter 33 to supply the insufficient electric power to the inside of the vehicle.

[0014]

According to the present invention, in a magnetically levitated vehicle which is magnetically levitated and travels at a high speed, energy for satisfying the power demand in the vehicle can be introduced from outside the vehicle by a contact type current collector such as a pantograph. Can not. Therefore, we guide the air flow generated during traveling to the wind tunnel installed in the magnetic levitation vehicle,
An auxiliary power supply device composed of a wind turbine and a generator installed in this wind tunnel supplies electric power. With this configuration, an internal combustion engine such as a diesel engine that drives a generator is not used, so the weight of the device can be reduced and the effects of avoiding pollution such as vibration, noise, and exhaust gas can be obtained. Be done. Further, by providing an air volume control valve at the entrance of the wind tunnel and adjusting the opening of the air volume control valve in accordance with the traveling speed of the magnetic levitation vehicle, the stability of the generator output can be improved. Here, if the shape of the wind turbine is cylindrical and the axial dimension is long and the diameter dimension is small, the height of the vehicle body can be reduced without reducing the generated power. Furthermore, the output of the wind turbine generator decreases when the magnetic levitation vehicle is stopped or running at low speed, but at this time, the current collector stored in the vehicle is extended to the outside of the vehicle to supply the insufficient power from the power supply conductor. By introducing it into the vehicle, it is possible to obtain an effect that the in-vehicle power consumption can be stably supplied regardless of the speed of the magnetically levitated vehicle traveling.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a first embodiment of the present invention.

FIG. 2 is a configuration diagram showing a second embodiment of the present invention.

FIG. 3 is a configuration diagram showing a third embodiment of the present invention.

FIG. 4 is a block diagram showing a fourth embodiment of the present invention.

FIG. 5 is a configuration diagram when a conventional auxiliary power supply device is applied to a magnetic levitation vehicle.

[Explanation of symbols]

 2 Track surface 3 Side wall 5 Magnetically levitated vehicle 6 Vehicle floor 11 Generator 12 Diesel engine 13 Air conditioner 14 Headlight 15 Interior lighting 21 Air intake 22 Wind tunnel 23 Air outlet 24 Generator 25 Propeller wind turbine 26 Air flow control valve 27 Cylindrical wind turbine 28 Transmission device 31 Power feeding conductor 32 Current collector 33 Power converter

[Procedure amendment]

[Submission date] May 27, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0003

[Correction method] Change

[Correction content]

FIG. 5 is a block diagram of a conventional auxiliary power supply device applied to a magnetic levitation vehicle. As shown in FIG. 5, the magnetically levitated vehicle 5 is levitated by magnetism, and the distance between the track surface 2 and the vehicle floor surface 6, that is, the flying height is H. Magnetic levitation vehicle 5
Has no wheels (actually it has wheels for low speed running,
This wheel is not used when running at high speed), and runs at high speed without contact. By the way, even if an electric power for propulsion required for traveling of a magnetically levitated vehicle is introduced from the outside by using a contact type current collector such as a pantograph, it is difficult to collect current at a high speed exceeding several hundred kilometers per hour. Therefore, a magnetic levitation vehicle travels with the propulsive force obtained by magnetic induction without using a current collector. Therefore, the auxiliary power supply does not use the current collector (it is difficult to collect the current by the current collector when traveling at high speed as described above), and the auxiliary power generator 11 and the diesel engine 12 installed independently in the vehicle assist A power supply unit is configured, and from this, an air conditioner 13, headlights 14, interior lighting 15
And so on.

Claims (3)

[Claims] 1. In a magnetically levitated vehicle that floats and travels by magnetism, an air intake port for taking in air during traveling of the magnetically levitated vehicle is provided in the magnetically levitated vehicle, and is rotated by an air flow taken from the air intake port. A windmill,
An auxiliary power supply device for a magnetic levitation vehicle, characterized in that an auxiliary power supply device configured with a generator driven by this wind turbine supplies electric power consumed in the magnetic levitation vehicle. 2. A magnetic levitation vehicle that floats and travels by magnetism. An air intake for taking in air during traveling of the magnetic levitation vehicle is provided in the magnetic levitation vehicle, and an air volume for adjusting the amount of air taken in from the air intake. The auxiliary power supply device composed of the adjusting means, the wind turbine that is rotated by the air flow taken in via the air volume adjusting means, and the generator driven by the wind turbine may cover the electric power consumed in the magnetic levitation vehicle. Characteristic Auxiliary power supply for magnetically levitated vehicles. 3. The auxiliary power supply device for a magnetically levitated vehicle according to claim 1, further comprising a current collector that extends to the outside of the vehicle body and collects the electric power from a power supply line as necessary. An auxiliary power supply device for a magnetically levitated vehicle, comprising the magnetically levitated vehicle, wherein the magnetically levitated vehicle consumes electric power collected by the current collector when the magnetically levitated vehicle is stopped or traveling at a low speed.