JPH0421301A - Non-contact current collecting system for superconducting magnetic levitation railroad - Google Patents

Abstract

PURPOSE:To enhance current collecting capacity and efficiency of a current collecting system and to facilitate manufacture of coil by forming circular or elliptical superconducting coils and current collecting coils and arranging upper and lower coils in 8-shape with different polarities. CONSTITUTION:Superconducting current collecting coils 6a, 6b and current collecting coils 7a-7f are connected in 8-shape similarly to levitation coils 4a-4f. Furthermore, the superconducting current collecting coils 6a, 6b are arranged with different polarities. The superconducting current collecting coils 6a-6d are formed into circular shape or elliptical shape. Pole pitch of the coils 6a-6d is set shorter than that of levitation/thrust superconducting coil.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a superconducting magnetic levitation non-contact current collection system for railways.

[Conventional technology]

As shown in Fig. 12(a), a magnetic levitation railway using superconducting magnets has superconducting coils 1a, 1 for levitation and propulsion.
Propulsion coil 3a installed on the ground
, 3b, 3c, (3d.

3e, 3f) are propelled by a moving magnetic field generated by applying a three-phase sinusoidal current as shown in FIG. 10, where the vertical axis represents the current and the horizontal axis represents time. In addition, the levitation coils 4a and 4b are formed by connecting other coils in a figure 8 shape.
, 4c, 4d, 4e, and 4f, as shown by the arrows in Figure 12 (b>), this is done by utilizing the force due to the induced repulsive magnetic flux, and the frequency of the supplied sine wave By changing the speed, it is possible to finally reach a super high speed of about 500 km/hour from start-up.In the figure, 5 is a guideway.

In the superconducting magnetic levitation system, a non-contact current collection system that uses harmonics, which are extra components of the moving magnetic field induced in the ground coil, is being considered as an on-board auxiliary power supply system. However, the proportion of harmonics included varies depending on the arrangement of the ground coils, and in some cases it may not be possible to obtain sufficient power. Therefore, it is important to install a superconducting coil on the vehicle for the purpose of current collection, for example, in the first
It is proposed as shown in Figure 3 (a) and (b). As shown in FIG.
e are arranged in one row along the longitudinal direction of the vehicle body. Superconducting coils 6b and 6cl for current collection mounted on this vehicle
Due to changes in magnetic flux caused by the movement of the coil 4 with the vehicle, the levitation coil 4 on the ground is
Electromotive force is generated in b, 4d, (4f, lower part of the levitation coil), and the magnetic flux generated by current flowing through the levitation coils 4a, 4c, (4e, upper part of the levitation coil) connected in a figure 8, Current is collected by spreading it through current collecting coils 7a, 7c, and 7e on the vehicle.

Regarding this type of system, there is a non-contact current collection method in the case of a counter-levitation method, for example, Japanese Patent Application Laid-Open No. 54-1'572.
There is a publication No. 05.

[Problem to be solved by the invention]

In the above-mentioned conventional technology, since the superconducting coil for current collection and the current collecting coil are arranged in one row above and below, there is a drawback that the amount of magnetic flux generated is small and the current collecting force is small. Additionally, superconducting magnets require magnetic shielding to eliminate any negative effects on the human body or other machines.

This required a large amount of space in the direction of train travel, which was extremely uneconomical.

The present invention has been made in view of the above points, and an object of the present invention is to provide a current collection system that can improve current collection ability.

To provide a current collection system that can improve current collection efficiency.

To provide a superconducting coil for current collection and a current collection coil that can be manufactured easily.

To provide a superconducting coil for current collection and a current collection coil that enable easy maintenance and inspection.

To provide a superconducting coil for current collection that can prevent levitation characteristics from being adversely affected.

To provide a current collection system that enables effective use of space in a vehicle.

The purpose is to

[Means to solve the problem]

In order to provide a current collection system that can improve the current collection capacity, the superconducting coil for current collection and the current collection coil are placed above and below each other in the same way as the levitation coil.
It has a figure 8 shape connected in a figure shape. Further, the current collecting superconducting coil and the current collecting coil were arranged in a different polarity arrangement in which the coils disposed above and below each have different poles.

In order to provide a current collection system that can improve current collection efficiency, the pole pitch of the current collection superconducting coil was made smaller than the pole pitch of the levitation/propulsion superconducting coil.

In order to provide a superconducting current collecting coil and a current collecting coil that can be manufactured easily, the superconducting current collecting coil and the current collecting coil are formed into a circular shape or an elliptical shape.

In order to provide a superconducting current collecting coil and a current collecting coil that can facilitate maintenance and inspection, the superconducting current collecting coil and current collecting coil are mounted on a specific vehicle.

In order to provide a superconducting coil for current collection that does not adversely affect the levitation characteristics, the superconducting coil for current collection and the distance between the coils placed above and below the levitation coil must be adjusted. greater than the distance between the top and bottom of. In addition, the current collecting superconducting coil and the current collecting coil were formed to be movable up and down using a lifting device.

In order to provide a current collection system that makes effective use of vehicle space, the superconducting coils for current collection are housed in the same cryogenic container.

[Effect]

The superconducting coil for current collection and the current collecting coil have a figure-8 shape in which the coils arranged above and below are connected in a figure-8 shape in the same way as the levitation coil. Also. Since the coils placed above and below the levitation coil have different polarity, the current flowing through the levitation coil is approximately 2
This increases the voltage induced in the current collector coil on the vehicle by approximately 2
It will be doubled.

The pole pitch of the superconducting coil for current collection is made smaller than the pole pitch of the superconducting coil for levitation and propulsion, making it possible to use harmonics with a small number of orders, making it possible to use magnetic flux with a large amplitude. .

Since the current collecting superconducting coil and the current collecting coil are formed in a circular or elliptical shape, the current collecting superconducting coil and the current collecting coil can be easily manufactured.

Since the current collecting superconducting coil and the current collecting coil are mounted on a specific vehicle, it is only necessary to perform one maintenance inspection on the specific vehicle.

The distance between the superconducting coils for current collection and the current collecting coils placed above and below them was made larger than the distance between the top and bottom of the levitation coils, so that an upward force is present even when the vehicle body moves up and down. As a result, the balanced characteristics of the flying characteristics are maintained.

Since the current collecting superconducting coils are stored in the same cryogenic container, the current collecting superconducting coils when different poles are arranged are also placed in the same cryostat.

〔Example〕

The present invention will be explained below based on an embodiment shown in one figure. An embodiment of the invention is shown in FIGS. 1(a) and 1(b). Note that parts that are the same as those in the prior art are designated by the same reference numerals, and therefore their explanations will be omitted. In this embodiment, superconducting coils 6a, 6
b, ... and current collecting coils 7a, 7b, 7c, 7d,
7e, 7f..., levitation coils 4a, 4b, 4C
Similar to those of 14d, 4e, 4f, etc., the coils (6a, 6b) and (7a, 7b) arranged above and below are connected in a figure 8 shape to form a figure 8 shape. By doing this, the levitation coils 4a, 4b, 4c, 4d,
The current I flowing through 4e, 4f, etc. is about twice as much as that of the conventional one, and - the current collecting coils 7a, 7b, 7C17d on the vehicle,
The voltage induced in 7e, 7f, . . . is approximately doubled, making it possible to obtain a current collection system with improved current collection ability.

In other words, the current collecting superconducting coils 6a, 6 mounted on the vehicle
b... are connected in a figure 8 pattern. A vehicle equipped with these superconducting coils 6a, 6b, etc. for current collection is, for example, 500 km.
When traveling at / hour, 8 installed on the ground by electromagnetic induction
8-shaped levitation coils 4a and 4b connected in a figure-like shape
, 4C14d, 4e, 4f, . . . as shown in FIG. 10, three-phase sinusoidal currents flow. Current collector coils 7a, 7b, 7c, 7d created by these three-phase sinusoidal currents
, 7e, 7f... The distribution of the magnetic field at the positions of the first
As shown in Figures 1 (a), (b), and (c),
In addition to the fundamental wave that travels with the train as shown in (b), the magnetic field shown in (a) of the same figure contains high-frequency harmonics (secondary spatial harmonics) as shown in (c) of the same figure. )It is included. The fundamental wave travels with the train, so from the train side it simply becomes a DC component, but the harmonic component travels several times faster than the train, so as mentioned above, this component can be used to obtain current collection ability. I can do it. The collector coils 7a, 7b, 7c, 7d installed on the vehicle extract this harmonic magnetic field.
7e, 7f-・, which are also connected in a figure-eight pattern. Therefore, current collecting coils 7a, 7b.

The number of 7c, 7d, 7e, 7f... is doubled per the same longitudinal length compared to the conventional one, the voltage of each is also about twice, and the magnetic flux taken out is also about 5 per the same longitudinal length.
~8 times. These current collecting coils 7a, 7b, 7c, 7d
, 7e, and 7f are connected to a converter 8, a buffer storage battery 9, an inverter 10, and finally a load 11, as shown in FIG. In addition, Figure 1 (
In b), 12 is a wheel.

Another embodiment of the invention is shown in FIG.

In this embodiment, superconducting coils 6a, 6b, . . . for collecting current are used.

The coils (6a, 6b) disposed above and below were arranged in a different polarity arrangement, each having a different pole. By doing this, the electric current flowing through the current collecting superconducting coils 6a, 6b, etc. can be changed to the upper and lower coils 6a, 6b, etc., as shown in FIG.
6b in the opposite direction, the levitation coil 4
The current flowing through a to 4f is approximately twice that of the conventional case, and the same effects as in the case described above can be achieved.

FIG. 3 shows the results of a study on how much current can be collected in the above embodiment.

This is the value shown in the same figure, levitation coil (8 characters 1 turn) 4
Self-inductance (L) of a, 4b 0゜98μH1 Resistance (R) 33.8μΩ, current collector coil (8 characters 3 turns) 7
Self-inductance (L) of a, 7b...6.66μH
1 resistance (R) 437 μΩ, current collecting superconducting coil 6a,
...width 0.60m, height 0.34m, current collector coil 7a
, . . . width 0.175 m, height 0.34 m, levitation coil 4a, . . . width 0.35 m, height Q, 34 m, etc. Superconducting coil 6a for current collection,
When a DC current of 3°0kAT is applied to the levitation coil 4a on the ground, the effective value is 42kAT, 102.9H.
An AC current of z flows (500 km/hour). The current collector coil 7a on the vehicle is induced by the magnetic flux created by this AC current.
,...The electromotive force per turn is the second spatial harmonic (
Since the second-order spatial harmonic is the third-order in terms of time), the effective value is 7.4V and 308°7. The same figure (a
) is installed on the left and right sides of the leading car and the trailing car for a length of 5.4 m in the direction of train movement, the voltage between the three-phase lines per car is 600 V, and the maximum is 408 kW (816 kW, twice that for one train). Electricity can be obtained (see figure (c)).

FIG. 4 shows yet another embodiment of the invention. In this embodiment, current collecting superconducting coils 6a, 6b, 6c, 6d
The pole pitch P1 of levitation/propulsion superconducting coil la
, lb pole pitch P2. By doing so, harmonics with a small number of orders can be used, magnetic flux with a large amplitude can be used, and the current collection efficiency of the current collection system can be improved.

That is, the pole pitch P of the superconducting coils 6a, 6b, 6c, and 6d for current collection is the superconducting coil for levitation and propulsion 1a, 1.
The pole pitch P2 of b is set to 1/2. Pole pitch P of superconducting coils 6a, 6b, 6c, 6d for current collection
1 is the same as the pole pit P2 of the superconducting coils 1a and 1b for levitation and propulsion, the magnetic field distribution seen at the current collecting coil position is as shown in FIGS. 11(d), (e), and (f). The fundamental wave (see (e) in the same figure) and the 5th spatial harmonic (5th
(see figure (f))
On the other hand, when the pole pitch is 1/2, the fundamental wave (see figure 11(b)) has a secondary space, as seen in Figure 11 (a), (b), and (c). This is the one on which harmonics are carried (see Figure 11(c)), and the amplitude is larger than that in Figure 11(f). Therefore, since this large amplitude is utilized, the non-contact current collection ability is increased compared to the case where the pole pitch is the same.

Note that FIG. 11(d) shows a change in the magnetic field obtained by combining (e) and (f) in the same figure.

Still another embodiment of the present invention is shown in FIGS. 5(a) and 5(b). In this embodiment, superconducting coils 6a and 6b for current collection are used.
, 6c, and 6d are circular (see figure (a)).
, and has an elliptical shape (see (b) in the same figure). By doing so, the current collecting superconducting coils 6a, 6b, 6c, and 6d can be easily manufactured because they are circular or elliptical. In addition, in this embodiment, the current collecting superconducting coil 6
Although the case where a, 6b, 6c, and 6d are formed in a circular or elliptical shape has been described, the same can be applied to the current collecting coil to achieve the same effect.

FIG. 6 shows yet another embodiment of the invention. In this embodiment, current collecting superconducting coils 6a, 6b, 6c, and 6d are mounted on a specific vehicle. In other words, the superconducting coil 6 for current collection
a, 6b, 6c, and 6d are arranged in a concentrated manner, for example, in the leading vehicle or the trailing vehicle. By doing so, it is only necessary to inspect the leading vehicle or the trailing vehicle, and maintenance and inspection of the current collecting superconducting coils 6a, 6b, 6c, and 6d can be facilitated. Note that in this case, the vehicle may also be a dedicated vehicle for the sole purpose of collecting current.

Furthermore, in this embodiment, the current collecting superconducting coils 6a, 6b
, 6c, and 6d.

The same can be applied to the current collecting coil.

Still another embodiment of the present invention is shown in FIGS. 8(a) and 8(b). In this embodiment, superconducting coils 6a, 6
The distance between the coils (6a, 6b) placed above and below b... was made larger than the distance between the top and bottom of the levitation coils 4a, 4b. By doing this, an upward force is present even when the vehicle body moves up and down, and the balanced characteristics of the levitation characteristics are maintained, and the current collecting superconducting coil 6a
, 6b, . . . can be prevented from having an adverse effect on the flying characteristics.

That is, as shown in FIG. 1(b), the current collecting superconducting coil 6
If the upper and lower coil arrangements of a and 6b and the levitation coils 4a and 4b are the same, the center position of the current collecting superconducting coils 6a and 6b will be the same as that of the levitation coils 4a and 4b, mainly during low-speed running during acceleration and deceleration. If the current-collecting superconducting coils 6a and 6b are shifted downwards, only the downward force shown by the arrow in the figure acts, as shown in FIG. In this case, for example, as shown in FIG. 8(a), by arranging the distance between the top and bottom of the current collecting superconducting coils 6a and 6b, that is, the distance between 6a and 6b, from that of the levitation coils 4a and 4b, Not only during constant speed travel when the center positions match, but also when the center positions shift downward during acceleration or deceleration, the upper coil 6a of the current collecting superconducting coils 6a, 6b is activated by the levitation coil 4a, 4b
Since the floating blade is located above the upper coil 4a, an upward force is exerted to prevent the floating blade from being adversely affected.

In addition, as shown in FIG. 8(b), an inspection device 13 is provided to detect the floating position of the train, and according to the detected position, the current collecting superconducting coils 6a, 6b and the current collecting coil 7a are
, 7b, by providing an elevator M14 for raising and lowering the
The same effects as those described above can be achieved at any speed.

FIG. 9 shows still another embodiment of the present invention.

The current collecting superconducting coils 6a and 6b are placed in the same cryostat 15 not only when they are connected in a figure 8 configuration, but also when they are not connected in a figure 8 configuration (different polarity arrangement). By doing so, the space on the train can be used effectively.

According to the embodiments described above, the following effects can be achieved.

(1) The superconducting coil for current collection and the current collecting coil are arranged with different polarities to have a figure 8 or equivalent function, and the power is distributed in two layers above and below, which increases current collection ability and improves train progress. The space required for magnetic shielding in this direction can be reduced.

(2) By making the pole pitch of the current collection superconducting coil smaller than that of the levitation/propulsion coil, for example, 1/2, current collection with improved efficiency becomes possible.

(3) By making the current collecting superconducting coil and current collecting coil circular or elliptical, manufacturing of these coils can be facilitated.

(4) By mounting the current collecting superconducting coil and the current collecting coil on a specific vehicle, maintenance and inspection of the current collecting system can be facilitated.

(5) By making the superconducting coil for current collection and the distance between the top and bottom of the current collecting coil greater than the distance between the top and bottom of the levitation coil, and by installing a lifting device that moves the superconducting coil for current collection and the current collecting coil up and down. , it is possible to avoid having a negative effect on the levitation blades of the magnetic levitation train.

(6) By housing the upper and lower current collecting superconducting coils in the same cryostat, space can be used more effectively than when they are not housed in the same cryostat.

〔Effect of the invention〕

As described above, the present invention can produce the following effects.

Since the current collection ability of the current collection system is improved, a current collection system that can improve the current collection ability can be obtained.

The current collection efficiency of the current collection system is improved, and a current collection system capable of improving the current collection efficiency can be obtained.

The superconducting coil for current collection and the current collecting coil can be manufactured easily, and the superconducting coil for current collecting and the current collecting coil that can be manufactured easily can be obtained.

The superconducting coil for current collection and the current collecting coil can be easily maintained and inspected, and the superconducting coil for current collecting and the current collecting coil that can be easily maintained and inspected can be obtained.

It has become possible to make the superpower coil for current collection so that it does not adversely affect the levitation characteristics, and it is now possible to obtain a superconducting coil for current collection that can be made so that the levitation characteristics are not adversely affected. .

The current collection system can effectively utilize the space of the vehicle, and a current collection system that can effectively utilize the space of the vehicle can be obtained.

[Brief explanation of drawings]

Figures 1 (a) and (b) show the arrangement of a superconducting coil for current collection, a current collection coil, and a levitation coil in an embodiment of the non-contact current collection system for superconducting magnetic levitation railways of the present invention. )
is an explanatory diagram seen from the direction perpendicular to the traveling direction, (b) is an explanatory diagram seen from the same direction as the traveling direction, and FIG. 2 is another implementation of the superconducting magnetic levitation railway non-contact current collection system of the present invention. A superconducting coil for current collection viewed from a direction perpendicular to the traveling direction of the example.
An explanatory diagram showing the arrangement of current collecting coils and levitation coils, Figure 3 (
Figures a), (b), and (c) examine the effect of current collection according to Figures 1, 5, and 2, and (a) shows the required dimensions of the superconducting coil for current collection, the current collection coil, and the levitation coil, respectively. An explanatory diagram showing
(b) is an explanatory diagram showing the dimensions between the superconducting coil for current collection, the current collecting coil, and the levitation coil, (c) is an explanatory diagram showing the generated voltage, and Fig. 4 is a non-contact superconducting magnetic levitation system of the present invention for railways. A superconducting coil for levitation and propulsion in another embodiment of the current collection system, an explanatory diagram showing the pole pitch size of the superconducting coil for current collection, and FIGS. 5(a) and 5(b) show the superconducting magnetic levitation of the present invention. 6 shows the shape of the superconducting coil for current collection of still another embodiment of the non-contact current collection system for railways, (a) is a circular shape, (b) is an explanatory diagram when it is formed into an elliptical shape, The figure is an explanatory diagram showing the arrangement of the superconducting coil for current collection in still another embodiment of the superconducting magnetic levitation non-contact current collection system for railways of the present invention, and FIG. 7 shows that the superconducting coil for current collection has an adverse effect on the levitation characteristics. FIGS. 8(a) and 8(b) are explanatory diagrams showing the state in which the superconducting magnetic levitation type non-contact current collecting system for railways according to the present invention has a superconducting current collector that does not adversely affect the levitation characteristics of yet another embodiment of the non-contact current collecting system for railways. This shows the arrangement of the coil and current collector coil, (a
) is an explanatory diagram showing the case where the respective distances between these two coils are separated from the distance between the top and bottom of the levitation coil, and (b) is an explanatory diagram showing the case where the superconducting coil for current collection and the current collecting coil are provided with a lifting device. , FIG. 9 is an explanatory view showing a state in which the superconducting coil for current collection with a different polarity arrangement of still another embodiment of the superconducting magnetic levitation non-contact current collection system for railways of the present invention is stored in a cryostat. The figure is a waveform diagram of the three-phase sinusoidal current induced in the levitation coil by the current collecting superconducting coil.
Figures 11 (a) to (f) show the magnetic field distribution generated at the current collecting coil position by the sinusoidal current induced in the levitation coil, and (a) to (c) show the superconducting coil for current collecting. When the pole pitch of the superconducting coil for levitation and propulsion is 172, (a) is a composite wave, (b) is a fundamental wave, and (c) is a waveform diagram of a second spatial harmonic. (d) to (f) are cases in which the pole pitch of the superconducting coil for current collection is the same as the pole pitch of the superconducting coil for levitation and propulsion; (cl) is the composite wave, (e) is the fundamental wave, and (f) is the fifth wave. The waveform diagrams of the next spatial harmonics, Figure 12 (a) and (b), explain the basic movement of a conventional magnetic levitation train. (a) shows the arrangement of various coils from the side in the direction of train movement. 13(b) is an explanatory drawing showing the state as seen from the direction of travel, and FIGS. 13(a) and 13(b) show a conventional superconducting magnetic levitation type non-contact current collection system for railways. a) is an explanatory diagram showing the arrangement of various coils viewed from the side in the direction of train travel; (b)
) is an explanatory diagram showing a current collecting state by a current collecting coil on a vehicle, and FIG. 14 is an explanatory diagram showing a state in which the current collecting coil is connected to a load via a converter, a buffer storage battery, and an inverter. la, lb... superconducting coil for levitation and propulsion, 3a. 3 b, 3 c, 3 d, 3 e, 3
f-propulsion coil, 4 a + 4 b 94 c v
4 d e 4 e * 4 f ・=levitation coil,
6a, 6b, 6c, 6d... superconducting coil for current collection, 7
a, 7b, 7c, 7d, 7e, 7f - current collector coil, 14
...Elevating device, 15...Cryostat (cryogenic container) Agent: Patent attorney Akio Takahashi (and one other person) a) Figure fb)

Claims (1)

[Claims] 1. In a system equipped with a levitation coil on the ground, a ground coil for propulsion coils, and a superconducting coil for levitation and propulsion on the vehicle, there is a current collector on the vehicle that converts the kinetic energy of the vehicle into vehicle power via the ground coil. In a non-contact current collection system for a superconducting magnetic levitation railway in which a superconducting coil and a current collecting coil are provided, the superconducting coil for current collecting and the current collecting coil are coils arranged above and below the levitation coil in the same manner as those of the levitation coil. 2. A superconducting magnetic levitation non-contact current collection system for railways, characterized in that it has a figure-8 shape in which the gaps are connected in a figure-8 shape. The superconducting coil for current collection and the current collecting coil are coils arranged above and below the levitation coil instead of having a figure 8 shape in which the coils arranged above and below are connected in a figure 8 shape. 3. A superconducting magnetic levitation type non-contact current collection system for railways according to claim 1, wherein the non-contact current collection system for railways according to claim 1 is arranged in a different pole arrangement, each having a different pole. 4. The superconducting magnetic levitation non-contact current collection system for railways according to claim 2, wherein the current collecting superconducting coils are housed in the same cryogenic container. 5. The superconducting magnetic levitation non-contact current collection system for railways according to claim 1 or 2, wherein the pole pitch of the current collection superconducting coil is smaller than the pole pitch of the levitation/propulsion superconducting coil. 6. The superconducting magnetic levitation non-contact current collecting system for railways according to claim 1 or 2, wherein the current collecting superconducting coil and the current collecting coil are formed in a circular or elliptical shape. 7. The superconducting magnetic levitation non-contact current collecting system for railways according to claim 1 or 2, wherein the current collecting superconducting coil and the current collecting coil are mounted on a specific vehicle. Claim 1: The current collecting superconducting coil and the current collecting coil each have a distance between the coils disposed above and below each other larger than a distance between the above and below the levitation coil.
or the superconducting magnetic levitation non-contact current collection system for railways according to claim 2;8. 9. The superconducting magnetically levitated non-contact current collecting system for railways according to claim 1 or 2, wherein the current collecting superconducting coil and the current collecting coil are formed to be movable up and down by a lifting device. In a system equipped with a levitation coil on the ground, a ground coil for propulsion coils, and a superconducting coil for levitation and propulsion on the vehicle, there is a current collector on the vehicle that converts the kinetic energy of the vehicle into vehicle power via the ground coil. A non-contact current collection system for a superconducting magnetic levitation railway that is provided with a superconducting coil and a current collecting coil, wherein the pole pitch of the current collecting superconducting coil is smaller than the pole pitch of the levitation/propulsion superconducting coil. 10. A superconducting magnetic levitation non-contact current collection system for railways characterized by: In a system equipped with a levitation coil on the ground, a ground coil for propulsion coils, and a superconducting coil for levitation and propulsion on the vehicle, there is a current collector on the vehicle that converts the kinetic energy of the vehicle into vehicle power via the ground coil. In a superconducting magnetic levitation non-contact current collection system for railways in which a superconducting coil and a current collecting coil are provided, the pole pitch of the current collecting superconducting coil is 1/2 of the pole pitch of the levitation/propulsion superconducting coil. A superconducting magnetic levitation railway non-contact current collection system characterized by