KR101104120B1 - Large power and high efficiency amorphous or nanocrystalline electromagnetic induction apparatus and electromagnetic induction system for reducing eddy of electric vehicle - Google Patents

Abstract

The present invention discloses a high-capacity high-efficiency amorphous or nano-crystallin induction feeder and induction feeder system for a large-capacity induction feeder for reducing leakage flux to enable the application of low-frequency AC power to a high-capacity induction feeder system. The induction power supply device for a large-capacity high-efficiency induction power supply of an electric vehicle for reducing the leakage flux is disclosed that when a supply power is replaced from a high frequency power supply to a low frequency power supply, a feed winding is wound to compensate for the mutual inductance attenuation according to the frequency reduction. An induction feeder provided on the track with a feeder; and a power collector installed on the electric vehicle and having an induction collector for generating electromotive force corresponding to mutual inductance of the induction feeder. By reducing the iron loss caused by the leakage magnetic flux, it is possible to supply the low-frequency power to the electric vehicle by compensating for the attenuation of the magnetic flux chain bridge generated when replacing the high frequency AC current with the low frequency AC current. Alternatively, the low frequency switching semiconductor device can be applied to induction Ryangyong thereby reducing the manufacturing, installation and maintenance of the induction power supply system.

Description

LARGE POWER AND HIGH EFFICIENCY AMORPHOUS OR NANOCRYSTALLINE ELECTROMAGNETIC INDUCTION APPARATUS AND ELECTROMAGNETIC INDUCTION SYSTEM FOR REDUCING EDDY OF ELECTRIC VEHICLE

The present invention provides a high-capacity high-efficiency amorphous (NAORPHOUS) or nanocrystallin (NANOCRYSTALLINE) induction feeder for large-capacity induction feeder or electric current collector to reduce the iron loss in the induction feeder or power collector to apply a low frequency AC power supply to a large-capacity induction feeder system An apparatus and an induction power supply system.

In general, an electric vehicle means a vehicle that operates by using electricity as a power source.

The electric vehicle is operated by using an electric rail car that receives electric energy from a wire flowing high voltage current and a battery that can be charged as a power supply source in the vehicle itself, and uses electric power supplied from the mounted battery. Electric car is divided into.

In the case of an electric vehicle, it moves along a track defined by the wire. A pantograph is provided as a current collector, and the overhead tank is pushed up to be in close contact with the force of a spring or compressed air, and the upper surface of the driving track. Alternatively, it may be divided into a third rail type receiving power through the third rail current collector from an independent feeder installed on the side.

However, the process lane method and the third trajectory type have a complicated structure, which makes installation and maintenance difficult, time consuming, and noise.

In addition, since the electric vehicle system of the prior art is installed in all lines, the DC power supply method requires a protection device against high resistance ground, and the AC power supply method increases the size of the tunnel and the vehicle to secure the insulation separation distance There are problems such as an increase in the exposure area for communication induction obstacles.

In order to solve the problems of the prior art as described above, there have been attempts to develop an electric vehicle that is powered by using a non-contact method by inductive power.

Korean Patent Application Nos. 10-2003-0072376 (Prior Art 1), 10-2004-0014385 (Prior Art 2) and 10-2007-115697 (Prior Art 3), etc. filed by the applicant of the present invention. Discloses an electric vehicle driving system using such a non-contact power feeding method.

The prior art 1 and the prior art 2 is configured to be operated by using a battery power or a power supplied by the induction action after charging the battery by receiving power from the outside of the vehicle by the induction action.

However, the prior arts 1 and 2 have a problem that requires frequent charging of the battery.

In addition, the prior art 1 and 2, because the charging equipment should be installed throughout the wide driving section, the size of the equipment, the loss of iron loss in the ferrite or laminated core due to the high frequency, the air gap in accordance with the characteristics of the induced current feeding method Problems such as loss caused by leakage magnetic flux. Accordingly, the prior art 1 and the prior art 2 are not suitable for applying to a high-speed long-distance electric car or small and medium-sized orbit train, etc., and have a problem in that installation and maintenance are difficult.

In order to solve the problems of the prior art 1 and the prior art 2, the prior art 3 comprises an electromagnet for collecting and feeding the electric power by an induction method. Then, a resonant inverter power source, which is converted from direct current to alternating current by a switching semiconductor element, is applied to an electromagnet for power supply embedded in the ground. Further, the area of the secondary core magnetic flux linkage area of the current collector portion is wider than that of the primary core magnetic flux linkage area of the power supply portion. By this configuration, the prior art 3 solves the problem of the magnetic flux loss of the prior art 1 and the prior art 2 by minimizing the leakage magnetic flux.

1 is a graph showing the frequency-current characteristics of the switching semiconductor device for supplying the resonant inverter power.

Figure 1 (a) shows the power frequency and current characteristics of the switching semiconductor device for the power source in the low frequency region applied to the small-scale induction power supply system of the prior art, Figure 1 (b) shows the power source of the high frequency region to be applied to a large-capacity system The power supply frequency and current characteristics of the switching semiconductor device are shown.

As shown in (a) of FIG. 1, in the case of a small scale induction power supply system of the related art, an AC power supply of 20 to 50 KHz section A is applied to supply a current capacity of about 100 A or less.

As shown in (b) of FIG. 1, it can be seen that a decrease in supply current occurs in the high frequency region of the switching semiconductor device. That is, in the period (B) where the frequency of the power supply is 500 ~ 600Khz, the supply current capacity is 950A [rms], whereas in the 1.2Khz period (C), the supply current capacity decreases rapidly to 300 ~ 350A [rms]. Can be.

Therefore, when the amorphous wireless power supply system is applied to a large-capacity electric vehicle system, in order to supply a large amount of current, a large number of high frequency switching semiconductor devices having a small current supply capacity must be applied. Accordingly, there is a problem in that installation and maintenance costs of an induction power supply system for an electric vehicle are increased by applying a plurality of expensive high frequency switching semiconductor elements.

Further, the induction power supply efficiency is lowered by the leakage magnetic flux in the magnetic flux chain-crossing gap of the amorphous electromagnet constituting the power supply and current collector of the prior art 3.

Fig. 2 is a diagram showing the distribution of the leakage magnetic flux F and the iron loss generating portion L of each of the amorphous induction current collector 2 and the induction current collector 3 of the prior art.

As shown in FIG. 2, in the amorphous induction current collector 2 and the current collector 3 of the related art, the leakage magnetic flux F is distributed inside the magnetic flux chain cross-section of the induction current collector 2, and the induction current collector 2 and Iron loss due to the leakage magnetic flux distribution F is generated in the iron loss generating portion L of the outer circumferential surface of the flux linkage surface of the induction current collector 3. Such iron loss requires an increase in supply current, and therefore, a problem of applying a larger number of high frequency switching semiconductor devices is required.

The present invention for solving the problems of the prior art, by reducing the leakage flux between the non-contact induction power supply and the current collector in the wireless power supply system for a large capacity electric vehicle compensates for the reduction of the chain bridge when applying low frequency power Accordingly, an object of the present invention is to provide an induction power supply device and an induction power supply system for a large capacity high efficiency amorphous or nanocrystalline induction power supply of an electric vehicle for reducing iron loss, which enables a high frequency electric vehicle to be driven by applying a low frequency power source.

The present invention also provides a high-capacity high-efficiency amorphous or nano-crystallin induction feeder and induction feeder system of electric vehicles for reducing iron loss to reduce the installation and maintenance costs of the high-capacity induction feeder system. For other purposes.

Induction feeder for large capacity induction feeder of the electric vehicle of the present invention for achieving the above object, when the power supply is replaced by a low-frequency power supply from a high frequency power supply winding winding for compensating the mutual inductance attenuation according to the frequency reduction An induction feeder installed on the track with an induction feeder to be installed; and a power collector having an induction current collector installed on the electric vehicle to generate an electromotive force corresponding to mutual inductance of the induction feeder. It is characterized in that the configuration.

In order to achieve the above object, a large-capacity induction feeding system of an electric vehicle for reducing iron loss of the present invention includes: a charging bay installed at a station where the electric vehicle stops to perform power feeding; And an induction power supply device for supplying AC power to the electric vehicle by an electromagnetic mutual induction action by a low frequency AC power flowing in the charging bay or the charging section.

The induction feeder is provided on the line with an induction feeder wound around a feeder winding for compensating the amount of mutual inductance attenuation according to the frequency reduction when the supply power is replaced from a high frequency power supply to a low frequency power supply. And a power collector installed on the electric vehicle and having a current collector configured to generate an electromotive force corresponding to the mutual inductance of the inductive current collector.

The induction current collector or the induction current collector may be made of an amorphous (Amorphous) or nanocrystalline (NanoCrystalline) core .

The induction current collector or the induction current collector may further include an iron loss reducing member in a cross section of magnetic flux linkages facing each other.

The iron loss reducing member may be formed of a ferrite (powder core).

In the present invention, the iron loss reducing member prevents the generation of leakage magnetic flux directed in a direction perpendicular to the stacking direction of the core forming the induction current collector or induction current collector.

The induction power supply device or induction power supply system for induction power supply may further include a package made of a heat dissipating material or an epoxy material for sealing the induction power supply unit and the power collector unit, respectively.

The package may be made of a box containing the induction collector and the power collector, respectively, such that the induction current collector or the magnetic flux chain cross-section of the induction current collector is exposed to the outside, and the external exposure surface is sealed by epoxy. Can be. The package may be formed by coating the entire outer surface with epoxy.

The present invention compensates the reduction of the cross-link flux in low frequency use by reducing the leakage magnetic flux on the flux linkage surface of the induction feeder to supply low frequency power to an induction feeder or induction feeding system for a large capacity electric vehicle. It provides the effect of making it possible.

In addition, the present invention is to provide a low-frequency power to the induction current collector for large-capacity electric vehicle, to apply a plurality of high-frequency switching semiconductor elements applied to the induction current collector for large-capacity electric vehicle, a small number or one low-frequency semiconductor device. It is possible to significantly reduce the manufacturing, installation and maintenance costs of induction power supply device or induction power supply system for large capacity electric vehicles.

1 is a graph showing the frequency-current characteristics of a switching semiconductor device for power supply of a resonant inverter of the prior art;
FIG. 2 shows the distribution of leakage fluxes F of the amorphous or nanocrystalline induction current collector 2 and the current collector 3 (corresponding to the electric current collector 20 of the present invention), respectively. Drawing showing the iron loss generating portion (L),
3 is a block diagram of an induction power supply system 100 for an electric vehicle according to an embodiment of the present invention;
4 is a schematic configuration diagram of a track system 100 ′ to which the induction feeding system 100 of FIG. 3 is applied.
5 is a view showing a schematic configuration of an electric vehicle 1 having an induction current collector 200 including a power collector 20 of the induction current collector 30 according to an embodiment of the present invention;
FIG. 6 is a view illustrating a detailed configuration of a charging unit (EMS: Energy Management System) 230 of the induction current collector 200 of FIG.
FIG. 7 is a diagram illustrating a detailed configuration of an energy management system (EMS) 230 ′ having a flywheel energy saving module.
8 is a view showing a detailed configuration of the induction power supply device 30 of FIG.
9 is a diagram illustrating an induction power supply device 30 ′ according to another embodiment.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

3 is a block diagram of an induction power supply system 100 for an electric vehicle according to an embodiment of the present invention, Figure 4 is a schematic configuration diagram of a line system 100 'to which the induction power supply system 100 of FIG. to be.

As shown in FIGS. 3 and 4, the induction feeding system 100 includes a station charging bay ('s / bay' in FIG. 3 and FIG. 4) 110 that is installed for each history. A plurality of charging section conductors (charging zones) in FIG. 3, a power control device 130, a vehicle sensing means 140, and a power supply control means 150. It is configured by.

The station charging bay 110 is installed for each station 110a and configured to perform power feeding in a station where the electric vehicle 1 (see FIG. 5) stops. In the drawing, the history 110a is illustrated as being configured at a position outside the traveling track 110 ', but the history 110a includes all the structures formed on the traveling track 110' like the current subway line. Include.

The charging zone conductor 'charging zone' 120 in FIG. 3 is a predetermined interval in a designated section of the driving line 110 ′ to transmit electric power to the driving electric vehicle 1 (see FIG. 5). It is formed of a plurality of conductors connected to each other. The designated part is an adjacent section of the station 110a, and a branch section connecting the acceleration / deceleration section 120a, in which the electric vehicle 1 (see FIG. 5) performs acceleration or deceleration, and the driving line 110 'adjacent to each other. Say 120b.

The charging bay 110 and the charging section 120 are connected to each other to form a unit.

Each of the charging bays 110 and the charging sections 120 is provided with a sensor (not shown) for detecting the position of the electric vehicle 1 (see FIG. 5) and transmitting it to the vehicle detecting unit 140.

The power control device 130 is configured to control the power supply to each unit formed by the charging bay 110 and the plurality of charging sections 120.

The vehicle detecting unit 140 interlocks with the power control device 130 and automatically detects a position in each of the charging bays 110 and the charging section 120 to determine whether the electric vehicle 1 (see FIG. 5) enters the vehicle. It is configured to.

The power supply control means 150 selectively controls the power supply according to the request of the entered electric vehicle 1 (see FIG. 5).

The electric vehicle induction feeding system 100 having the above configuration determines whether the electric power supply control means 150 requires charging of the electric vehicle when the electric vehicle enters the charging bay 110 or the charging section 120. As a result of the determination, power is supplied to the electric vehicle 1 (refer to FIG. 5) which is stopped or running only when charging is necessary. In addition, even when the electric vehicle 1 (see FIG. 5) enters the charging bay 110 or the charging section 120, when the electric vehicle 1 does not need to be charged, the power supply control means 150 may include a charging bay ( Electromagnetic induction energy generated from the 110 or the charging section 120 is controlled so as not to be transmitted to the electric vehicle. Therefore, unnecessary power supply is cut off while charging is not performed, thereby reducing power consumption.

5 is a view showing a schematic configuration of an electric vehicle 1 including an induction current collector 200 having a power collector 20 of the induction current collector 30 according to an embodiment of the present invention. 6 is a view showing a detailed configuration of the charging unit (EMS: Energy Management System) 230 of the induction current collector 200 of FIG. 5, Figure 7 is a charging unit having a flywheel energy saving module (Flywheel Energy Saving Module) It is a figure which shows the detailed structure of (EMS: Energy Management System) 230 '.

As shown in FIG. 5, the electric vehicle 1 includes a power collector 20, a pore controller 210, a rectifier smoother 220, and a charger (EMS) of the induction feeder 30. 230, the power converter 240 and the electric motor 250 is configured.

The electric vehicle 1 having the above configuration has an electromagnetic induction action by the induction current collector 30 when the electric vehicle 1 passes through the charging bay 110 or the charging section 120 that runs at low speed by acceleration or deceleration. It operates by using the AC power generated by the charging unit (EMS: Energy Management System) (230) is charged. When the driving line 110 ′ that runs at a high speed other than the charging bay 110 or the charging section 120 is operated, the vehicle operates by using the stored power of the charging unit (EMS) 230.

Among the components of the electric vehicle 1, the induction feeder 30 is a charging bay installed in the induction feeder 10 installed on the traveling track 110 ′ and the history 110a or the traveling track 110 ′. In consideration of the distance between the 110 and the charging section 120 is configured to include a power collector 20 configured on the bottom of the electric vehicle (1). The power collector 20 is configured to perform the leakage flux or iron loss reduction function of the present invention, including the function of the induction collector 3 in a configuration corresponding to the induction collector 3 of the prior art. The induction power supply device 30 having the above configuration will be described in more detail with reference to FIGS. 8 and 9 below.

The air gap control unit 210 measures the air gap between the induction current collector 10 and the power current collector 20 as disclosed in Patent Application No. 10-2009-11462 by the applicant of the present invention to obtain the size information of the air gap. A controller for outputting a control signal for outputting a control signal to maintain a predetermined gap by comparing the size information of the sensor output from the sensor with the preset size information, based on the control signal output from the power collector 20 It is configured to include a displacement controller for moving up and down. Each configuration and coupling structure of the air gap control unit are described in detail in Patent Application No. 10-2009-11462, and thus the detailed description thereof is omitted.

The rectifying smoother 220 rectifies and smoothes the AC power generated by the power collector 20 to DC power, and uses a known rectifying circuit and a smoothing circuit including a bridge diode, a coil, a capacitor, and the like. In addition, the rectifying smoother 220 may further include a resonant compensation circuit for compensating leakage of reactive power and reactive power.

As illustrated in FIG. 6, the charging unit (EMS) 230 includes a battery 231 for storing power, an ultracapacitor 232 for reducing a charging time and a discharging time, and an charging unit (EMS: Energy Management System). Under the control of the EMS controller 233 and the EMS controller 233 to perform a stable operation of the 230, the output of the battery 231 or the ultracapacitor 232 is selected to drive the electric vehicle 1. And a bidirectional DC / DC converter 234 for converting and outputting the predetermined DC power at a required level.

The charging unit (EMS) 230 may be configured to include a flywheel energy saving module 232 ′ instead of the ultracapacitor 232 as shown in FIG. 7. The flywheel energy saving module 232 'may be applied to the flywheel energy storage device 232' having various structures, including the structure disclosed in Korean Patent Application Publication No. 200-1208. And description is omitted.

FIG. 8 is a diagram illustrating a detailed configuration of the induction power supply device 30 of FIG. 5.

As shown in FIG. 8, the induction feeder 30 includes an induction feeder 10 installed on the driving line 110 ′, a power collector 20 installed in the electric vehicle 1, and the induction feeder. It comprises a package (10a, 30b) of a heat dissipating material or an epoxy material to individually receive and seal the 10 and the power collector 20.

The induction power supply device 30 can improve the power supply efficiency by reducing the leakage flux or iron loss in order to supply low frequency power to the induction power supply system for electric vehicles requiring a large current.

To this end, the induction feed unit 10 is formed of an induction feeder 11 in which an amorphous or nanocrystalline (NanoCrystalline) core is laminated, and an iron loss formed on the magnetic flux emitting surface (magnetic flux linkage) of the induction feeder 11. A power supply winding 13 wound around the reduction region 12, an outer region of the end region of the induction feeder 11 on the side of the magnetic flux emitting surface, and a conducting wire 14 for supplying power to the power supply winding 13; Reference).

The power collector 20 includes an induction collector 21 in which an amorphous or nanocrystalline core is laminated, and an iron loss reducing member formed on a magnetic flux emitting surface (magnetic flux linkage) of the induction collector 21. And a conductive wire 24 (see Fig. 3) for drawing out the power generated by the induced electromotive force. Iron loss reducing member 22 of the power collector 20 may not be configured in an optional configuration.

The power supply winding 13 replaces the high frequency power of the prior art to supply a low frequency power to compensate for the reduction of the mutual magnetic flux that should be bridged in the magnetic flux inflow surface of the induction current collector 21, such as a resonance frequency reduction amount. The number of turns is increased to increase the magnitude of the positive mutual inductance.

The induction current collector 11 and the induction current collector 21 refers to an electromagnet that is magnetized to generate magnetic flux when a current is applied and then interacts with each other by mutual inductance.

The iron loss reducing members 12 and 22 are formed to form a layer having a predetermined thickness by using ferrite (powder core) on the end face (magnetic flux emitting surface) of the induction current collector 11 or the induction current collector 21 formed in the void portion. do. The ferrite (powder core) is composed of fine particles to minimize iron loss (eddy current loss) regardless of the direction of the leakage magnetic flux generated in the void portion. In addition, the ferrite (powder core) is a laminated surface 11 'of an amorphous or nanocrystalline core in which the direction of leakage magnetic flux generated in the void portion forms the induction current collector 11 or the current collector 21. , 21 ', see FIG. 8). As a result, a large amount of current can be induced even when low frequency power is applied by minimizing magnetic flux loss at the magnetic flux linkage plane for magnetic flux inflow and discharge of the induction current collector 11 and the current collector 21.

The packages 30a and 30b are configured in a box shape made of a heat dissipating material and an epoxy material. The packages 30a and 30b of the above configuration are independently sealed after accommodating each of the induction feed unit 10 and the power collector 20. In this case, the iron loss reducing members 12 and 22 are exposed to the outside of the packages 30a and 30b on the surfaces of the packages 30a and 30b facing each other. The surface of the iron loss reducing members 12 and 22 exposed to the outside is applied to form a thin layer using an epoxy resin and sealed with the outside. The epoxy resin may be applied to the entire outer surface of the package (30a, 30b) to form an outer skin layer. At this time, the thickness of the coating layer of the epoxy resin is formed to the thinnest thickness that is not damaged by vibration while minimizing the shielding of the magnetic flux.

The packages 30a and 30b mitigate vibrations transmitted to the induction feeding unit 10 or the power collecting unit 20 to prevent the induction feeding unit 10 and the power collecting unit 20 from colliding with each other. In addition, by blocking the inflow of foreign substances to the outside to prevent damage or malfunction of the induction current collector 30.

9 is a view showing an induction current collector 30 ′ of another embodiment of the present invention.

As shown in FIG. 9, the induction current collector 30 ′ has the same configuration as the induction current collector 30 of FIG. 8, but the power collector 20a installed in the electric vehicle 1 is not a horseshoe type. It is formed in a bar shape. The power collectors 20a are stacked in a direction penetrating the drawing so that the induction feeder 10 and the stacked surfaces 11 'and 21a' of the power collector 20a face each other. An iron loss reducing member 22a formed of a ferrite (powder core) is formed on a surface of the power collector 20a that faces the induction feeder 10. The iron loss reducing member 22a may not be provided in an optional configuration.

In the case of the induction current collector 30 ′ having the structure of FIG. 9, the area of the magnetic flux chain bridge is increased by manufacturing the power collector 20a in a bar shape, thereby improving energy transfer efficiency due to electromagnetic induction. do. In addition, the laminated surface 11 'from which the magnetic flux of the inductive current collector 11 is discharged is disposed so as to face each other with the laminated surface 21a' formed in the transverse direction of the inductive current collector 21a. ) Is also effective.

Induction feeding unit 10 and power collecting unit 20a of induction feeding device 30 ′ of induction feeding for FIG. 9 Also, as shown in FIG. 8, iron loss reducing members 12 and 22a are exposed to the outside and thinned. The package 30 may further include packages 30a and 30c sealed by an epoxy resin coating layer formed.

In the configuration of the embodiment of the present invention, the amorphous or nanocrystalline (NanoCrystalline) core is made of an amorphous or nanocrystalline (NanoCrystalline) alloy (Amorphous Alloy).

The amorphous alloy is an amorphous magnetic material made by melting a mixture of iron (Fe), boron (B), silicon (Si) and the like and then rapidly cooling the crystal structure at a solidification point when the metal is cooled in a molten state. If the cooling rate is extremely large, it becomes liquid even after the freezing point, and eventually it becomes an amorphous solid in the state of the supercooled liquid. This solid is called amorphous amorphous. The amorphous has high strength and hardness, toughness and ductility, and excellent corrosion resistance. In addition, since there is no regularity in the arrangement of atoms, the hysteresis loss is small, and the resistivity is high (about 3 times that of silicon steel sheet), but the thickness (about 1/10 of silicon steel sheet) is thin, which reduces the vortex loss. Hand + vortex hand) can be reduced to about 1/5 of silicon steel sheet.

The nanocrystalline alloy has a high saturation magnetic flux density comparable to that of iron-based amorphous metals, and has a high permeability as much as carbon-based amorphous metals, so that iron loss is only one fifth of iron-based amorphous metals. Therefore, it is an iron core material that can be used to replace the existing iron-based amorphous.

The induction current collectors 30 and 30 'of the above configuration reduce leakage magnetic flux and iron loss in supplying large-capacity induction power to the electric vehicle 1. In addition, when the low-frequency power is supplied, the feed winding 13 compensates for the decrease in the magnetic flux chain bridge due to the frequency decrease. Accordingly, a large amount of current can be induced even when a low frequency power source is supplied to a large capacity induction feeding system instead of a high frequency power source. In addition, it is possible to use a low-frequency switching semiconductor device having a large current supply capacity.

That is, the induction power supply devices 30 and 30 'of the present invention use a low frequency switching semiconductor device having a large current capacity without applying a plurality of high frequency switching semiconductor devices as in the case of the large capacity induction power supply system 100 of the prior art. Make it applicable. When the low frequency switching semiconductor device can be applied, the number of switching semiconductor devices used according to the required current capacity in the large-capacity induction feeding system can be significantly reduced, and one low-frequency switching semiconductor device can be appropriately applied. This significantly reduces the cost of manufacturing, installing and maintaining a large capacity induction feed system for electric vehicles.

1: electric vehicle, 100: induction feed system, 110: charging bay, 110 ': driving track
110a: history, 10: induction feeder, 20, 20a: power collector
30, 30 ': induction feeder, 11: induction feeder, 12, 22, 22a: iron loss reducing member
13: feed winding, 21, 21a: induction collector
11 ', 21', 21a ': amorphous (or' nanocrystallin ') core stack
30a, 30b, 30c: package

Claims (11)

An induction feeding part installed on a line with an induction feeder in which a feed winding is wound to compensate for mutual inductance attenuation according to a frequency reduction when a supply power is replaced from a high frequency power supply to a low frequency power supply;
And a power collector installed on the electric vehicle and having an induction collector for generating an electromotive force corresponding to the mutual inductance of the induction current collector.
The induction feeder or induction collector,
Made of amorphous or NanoCrystalline core,
The induction collector,
Induction of amorphous induction feeding is formed in the shape of an alloy bar of any one of amorphous or NanoCrystalline, the laminated surface in the transverse direction is configured to face the magnetic flux emitting surface of the induction feed Power collector. delete The induction current collector of claim 1, wherein at least one cross section of the induction collector or the induction collector facing each other further includes an iron loss reducing member. The induction feeder of claim 3, wherein the iron loss reducing member is formed of a ferrite (powder core). delete [Claim 2] The inductive current collector of claim 1, further comprising a package of a heat dissipating material or an epoxy material accommodating the induction feeding part and the power collecting part, respectively. The induction current collector of claim 6, wherein the package is configured such that an epoxy resin is coated and sealed after the magnetic flux linkage surface of the induction current collector or the induction current collector is exposed to the outside. . A charging bay installed at a station where the electric vehicle stops to perform power feeding; and,
A charging section for feeding power in some sections of the driving tracks;
And an induction power supply device for supplying AC power to the electric vehicle by an electromagnetic mutual induction effect by a low frequency AC power flowing in a charging bay or a charging section.
The induction feeder,
An induction feeding part installed on a line with an induction feeder in which a feed winding is wound to compensate for mutual inductance attenuation according to a frequency reduction when a supply power is replaced from a high frequency power supply to a low frequency power supply;
And a power collector installed on the electric vehicle and having an induction collector for generating an electromotive force corresponding to the mutual inductance of the induction current collector.
The induction feeder or induction collector,
Made of amorphous or NanoCrystalline core,
The induction collector,
It is formed in the shape of an alloy bar of either amorphous or nanocrystalline (NanoCrystalline) (bar), the high-capacity high-efficiency induction feed characterized in that the laminated surface in the transverse direction is configured to face the magnetic flux emitting surface of the induction feed Induction feeding system. delete delete The induction feeding system of claim 8, wherein the induction current collector or the induction current collector further includes an iron loss reduction member at opposite cross-links of the magnetic flux linkages.

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