KR20220126189A - Power supply equipment and system of wireless charging electric road while stopping and driving, and power collecting device using the same - Google Patents

Abstract

The present invention relates to a power supply and collection system during stopping and driving on an electric road, and more particularly, to a power supply and collection method of a charging electric road during stopping and driving for a wireless power supply and collection system for buses, trucks, cars, and the like on an electric road, and for a wireless power supply and collection system for transportation systems at airports, ports, campuses, and the like. The power supply apparatus comprises an inverter and a power supply line. The power supply apparatus controls an amount of current flowing into the power supply line for high-speed and highest-efficiency charging.

Description

BACKGROUND ART Power supply equipment and system of wireless charging electric road while stopping and driving, and power collecting device using the same}

The present invention relates to a power supply and power collection system during stopping and driving on an electric road, and more particularly, to satisfy the maximum power and maximum efficiency by making it sensitive to left and right deviations and vertical deviations of electric vehicles in the construction of charging infrastructure for electric roads. It relates to a power supply device and a current collector for a wireless charging electric road during stopping and driving, and a power supply system for the same.

In general, WiTricity of the United States developed a 3.3kW magnetic resonance type wireless charger and applied it to Toyota Motors in Japan to conduct experimental verification. After that, it is developing 6.6kW and 11kW magnetic resonance type wireless chargers, and Qualcomm-Halo is a Spark Renault company. It was demonstrated by applying magnetic resonance wireless charging technology to -01E. And Japan's Toyoda and Nissan have licensed Witricity's wireless charging technology to use a circular coil structure, and have been conducting empirical research on Prius plug-in hybrid vehicles since February 2014. /IEC) is being promoted. In addition, Germany's Bombardier developed PRIMOVE, a wireless charging electric tram, and operated a test ship in Mannheim, Germany. It is a technology that enables wireless charging while stopping by installing a wireless charging infrastructure at bus stops and parking lots. It is possible to supply In Korea, a magnetic resonance type online electric vehicle wireless charging technology has been developed, and 150kW of power is delivered with a transmission efficiency of up to 90% at a distance of 20cm through a power supply coil buried in the road and a current collector coil built into a bus. It is a technology for charging the battery of a bus and enables charging while driving through a power supply coil buried in a segment method on the road. In Europe, FABRIC (Feasibility Analysis and Development of On-road Charging Solutions for Future Electric Vehicles) The project is underway, and 23 European institutions (automobile manufacturers, energy companies, road companies, research institutes, etc.) have formed a consortium to analyze and develop the feasibility of road wireless charging technology in the long term. Three test sites (France, Italy, Sweden) are conducting research and measurement on wireless charging technology together with related organizations, and Qualcomm demonstrated wireless charging while driving a passenger car in France. And Israel's Electreon is conducting a wireless charging pilot project for buses while driving in downtown Tel Aviv, and a wireless charging pilot project for trucks while driving in Sweden.

As such, research for wireless charging is being conducted in many countries around the world, but the cost of building road charging infrastructure during driving and stopping is high, and the structure of the power supply line and the arrangement of inverters and cab boxes are not taken into account. And in order to increase the highest efficiency, a lot of research is still needed.

US 2016/0339785A1

The present invention was devised to solve such a problem. Considering the infrastructure structure that minimizes the cost required for building road charging infrastructure during driving and stopping, the optimal arrangement of inverters and cab boxes, etc., high-speed charging when charging multiple vehicles, The purpose of this is to control the amount of current flowing into the power supply line based on the battery size and state of charge of multiple vehicles for the most efficient charging.

In addition, when there is a left-right and vertical deviation between the power supply line and the current collector, the structure of the strong feeding coil and current collector coil is taken into consideration. aim to do

In order to achieve the above object, according to the present invention, there is provided a power supply device for a wireless charging electric road during stopping and driving, comprising: an inverter; and a feed line electrically connected to the inverter for wirelessly supplying power to a vehicle traveling along one lane, wherein the feed line receives an alternating current from the inverter and partially overlaps with each other a plurality of power supply coils disposed to be; and a feeding core installed at the lower end of the plurality of feeding coils.

The feed line is plural, and a plurality of feed lines are arranged in each lane, and the current application phase of the feed coil of the feed line of one lane and the feed coil of the adjacent feed line of the other lane is the same.

The feed line is plural, and a plurality of feed lines are arranged in each lane, and the current application phase of the feed coil of the feed line of one lane and the feed coil of the adjacent feed line of the other lane is 180 degrees different.

The power supply core is in the form of a grid.

The feeding core is in the form of a discontinuous horizontal bar.

The power supply core is a fusion form of a discontinuous horizontal bar and a continuous vertical bar at both ends.

The feed line further includes a plurality of gap boxes for lowering the voltage applied to the plurality of feed coils.

Another aspect of the present invention for achieving the above object is an inverter; and a feed line electrically connected to the inverter and configured with a plurality of segments for wirelessly supplying power to a vehicle traveling along one lane. and a common line electrically connected to the inverter and configured to transmit AC power to each of the plurality of segments, wherein each segment receives an AC current from the common line and partially overlaps each other. feeding coil; and a feeding core installed at the lower end of the plurality of feeding coils.

It further includes a plurality of cap boxes for lowering the voltage applied to the common line.

The power supply core is in the form of a grid.

The feeding core is in the form of a discontinuous horizontal bar.

The feeding core is a fusion of a discontinuous horizontal bar and a continuous vertical bar at both ends.

Another aspect of the present invention for achieving the above object is a plurality of current collecting coils installed so that an induced voltage greater than or equal to a reference value is selected according to a voltage level; and a current collecting core installed on top of the plurality of current collecting coils.

The current collecting coil is a built-in type.

The current collecting coil is a stacked type.

Another aspect of the present invention for achieving the above object is two or more inverters according to claims 1 or 8;

It includes a shared PFC electrically connected to each of the inverters in direct current to supply current and receive three-phase power.

Another aspect of the present invention for achieving the above object comprises the steps of (a) checking the vehicle entering the feed line in the power feeding device; (b) estimating the charging capacity of the vehicle identified in step (a); and (c) allowing a current to flow through at least one of the power feeding coils of the power feeding lines so that power corresponding to the vehicle's charging capacity estimated in step (b) is provided.

Another aspect of the present invention for achieving the above object is the steps of (a) confirming the entry of a vehicle equipped with a multi-pickup unit to the feed line of the power feeding device; (b) detecting the degree of misalignment in the feed line entered in step (a); and (c) selecting at least any one of the plurality of current collecting coils of the multi-pick-up unit according to the degree of misalignment detection in step (b).

According to the present invention, among the feed road costs consisting of inverter, feed line, cap box, civil work, and electrical work cost, inverter, civil work, and electric work cost have a limit in cost reduction, so the feed line and cap box cost are reduced. It has the effect of contributing to the spread of wireless charging infrastructure construction.

In addition, it provides high-speed charging service according to the driver's request for various types of vehicles to maximize convenience and minimize energy consumption by providing maximum efficiency service. When the amount of received power is less than the reference value, the rated reception capacity and efficiency greater than the reference value are provided through feedback control, thereby contributing to the spread of wireless charging electric vehicles.

1 to 2 are diagrams showing the configuration of a first embodiment of the installation of a power supply infrastructure on a road including a power supply device for a wireless charging electric road during stopping and driving according to the present invention.
3 is a configuration diagram illustrating in detail a power supply line installed in one lane in a power supply device of a wireless charging electric road during stopping and driving according to the present invention;
4 is a configuration diagram illustrating a second embodiment of the installation of a power feeding infrastructure on a road including a power feeding device for a wireless charging electric road during stopping and driving according to the present invention;
5 is a view showing a cap box using a common line in the second embodiment of the present invention according to FIG.
6 is a view showing various feed core structures of the feed line according to the present invention.
7 to 8 are views showing a phase method applied to the feed coil for each lane according to the present invention.
9 is a view showing a power supply infrastructure system for a road including a power supply device for a wireless charging electric road during stopping and driving according to the present invention.
10 is a view showing a coil structure of a current collector using a power supply and system of a wireless charging electric road during stopping and driving according to the present invention.
11 is a flowchart illustrating an algorithm for autonomously supporting high-speed and high-efficiency charging by the power feeding infrastructure in the electric road power feeding device for charging during stopping and driving according to the present invention;
12 is a flowchart illustrating an algorithm in which pickup autonomously supports high-speed and high-efficiency charging in an electric road power collector for charging while stopping and driving according to the present invention;

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, the terms or words used in the present specification and claims should not be construed as being limited to conventional or dictionary meanings, and the inventor should properly understand the concept of the term in order to best describe his invention. Based on the principle that it can be defined, it should be interpreted as meaning and concept consistent with the technical idea of the present invention. Therefore, the configuration shown in the embodiments and drawings described in the present specification is merely the most preferred embodiment of the present invention and does not represent all of the technical spirit of the present invention, so at the time of the present application, various It should be understood that there may be equivalents and variations.

1 to 2 are block diagrams showing a first embodiment of the installation of a power feeding infrastructure on a road including a power feeding device for a wireless charging electric road during stopping and driving according to the present invention.

1 to 2, the power supply infrastructure of the road including the power supply device of the wireless charging electric road during stopping and driving according to the present invention is provided from one inverter 10, 11 and one inverter 10, 11. It consists of feed lines 20a, 20b, 21a, and 21b for wirelessly supplying power to a plurality of lanes, and in this case, the feed lines 20a, 20b, 21a, 21b of each lane have a plurality of feed coils 20a_1, 20a_N ), (20b_1, 20b_N). Here, FIG. 1 is a power supply infrastructure structure on a road with a median 1, and in the case of a road with a median 1, one inverter 10 is installed at the center of the road or at the position of the median 1, It is installed semi-underground or underground to support a plurality of feed lines 20a, 20b on the uplink or downlink to reduce the cost of infrastructure construction. And FIG. 2 is a basic configuration of a power supply infrastructure for a road without a median, and inverters 10 and 11 are installed on the sidewalk 2 . In this case, the inverters 10 and 11 are shared and installed on the flat ground, and the feed lines 20a, 20b, 21a, and 21b are installed only on the uphill road on the slope. At this time, the inverters 10 and 11 apply power to the feed lines 20a and 20b of the uplink or downlink multi-lane when necessary, and apply the necessary power to the feed lines 20a, 20b, 21a, 21b of the uplink or downlink multi-lane. do. Meanwhile, the inverters 10 and 11 independently apply power to the feed lines 20a, 20b, 21a, and 21b of each lane. Also, it is possible to independently supply power to a plurality of feed coils constituting the feed lines 20a, 20b, 21a, and 21b to be described with reference to FIG. 3 .

3 is a detailed configuration diagram illustrating a power feeding line installed in one lane in the power feeding device of the wireless charging electric road during stopping and driving according to the present invention.

As shown in FIG. 3 , one lane, for example, the one-lane feed line 20a shown in FIGS. 1 to 3 , receives AC current from one inverter 10 based on the center point of the lane. It consists of a plurality of feeding coils (20a_1, 20a_2, 20a_N) and a feeding core 25 installed at the lower end of the plurality of feeding coils (20a_1, 20a_2, 20a_N). For reference, it is specified that the plurality of feeding coils 20a_1, 20a_2, and 20a_N have the same length. That is, the feed lines 20a and 20b of each of the up and down lanes have a plurality of oval (rectangular) feed coils 20a_1, 20a_2, 20a_N having an appropriate length and a grid-type core installed under the feed coils 20a_1, 20a_2, 20a_N. structure 25 . Such a feed line (20a) has an effect of increasing the toughness when the left and right and vertical deviation of the vehicle is diagonally. In particular, the feed line 20a has a plurality of feed coils 20a_1 in each lane based on the center point of each lane so that wireless charging can be smoothly performed while a bus, a large truck, a small truck, a passenger car, etc. is traveling on the road or is stopped. , 20a_2, 20a_N) are installed to partially overlap, and the spacing of each coil is optimally determined. In addition, the width of the individual feeding coils 20a_1, 20a_2, and 20a_N is made smaller than that of the passenger car with the smallest vehicle width to prevent an EMF problem from occurring.

4 is a configuration diagram illustrating a second embodiment of the installation of a power feeding infrastructure on a road including a power feeding device for a wireless charging electric road during stopping and driving according to the present invention.

Referring to FIG. 4 , one inverter 10, feed lines 20a and 20b for wirelessly supplying power from one inverter 10 to a plurality of lanes, and feed lines 20a and 20b are extended. To make it possible, it includes a plurality of cap boxes (30a, 30b) for lowering the voltage supplied to the extended feed line (20, 20b). For reference, it is specified that the feeding line for each lane in FIG. 4 is also composed of a plurality of feeding coils as in FIG. 3 .

5 is a view showing a cap box using a common line in the second embodiment of the present invention according to FIG.

Referring to FIG. 5 , a single inverter 10 and a common line 40 connected to the single inverter 10 to transmit AC power to the power supply line 20a are shown. Although the power supply line 20a described above is wirelessly supplied with power from an inverter to a plurality of lanes, in the second embodiment, a plurality of lanes from one inverter 10 to a plurality of lanes through a common line 40 connected to the inverter 10 . Power is supplied to the feed line 20a provided in the . The common line 40 is a power line required to elongate the feed line 20a, and the common line 40 is generally used when the feed line 20a is segmented and configured. In addition, a pair of common lines 40 are required per one segment, and a switch 41 is required for each pair of common lines 40 . The biggest feature of the present invention is that a current is transmitted to the common line 40 through the inverter 10. At this time, if the common line 40 is long, a plurality of cap boxes for lowering the voltage applied to the common line 40 (30a..30a_N) is provided. On the other hand, although the switch 41 is shown in only one coil among the plurality of feed coils (refer to FIG. 3 ) constituting the feed line 20a in FIG. 5 , it is specified that a switch is provided for each feed coil. Meanwhile, although FIG. 5 shows a plurality of feed lines composed of a plurality of segments for wirelessly supplying power in one lane, the same applies to the plurality of lanes. That is, after the inverter 10 identifies the up or down electric road based on the GPS-based vehicle location information and the vehicle speed and identifies the lane, power is applied to the segment just before the wireless charging vehicle enters the segment to consume standby power. is minimized, and the starting point of each lane is determined in consideration of the shortest path. Here, the cap boxes 30a and 30a_N may be installed in the median strip or sidewalk closest to the segment to minimize standby power loss and maximize the segment extension length. At this time, by using the camera-based vehicle location and identification information and vehicle speed installed on the median or sidewalk or road, the power of the corresponding segment of the inverter 10 is controlled immediately before the vehicle enters, or GPS-based vehicle location information, vehicle speed information Controls the power of the corresponding segment of the inverter based on That is, FIG. 4 is a diagram showing a configuration diagram of a feeding infrastructure in which the length of the feeding lines 20a and 20b is extended using the cap boxes 30a and 30b made of capacitors, and the feeding lines 20a and 20b are the cap boxes By extending the segment length that can be charged by one inverter 10 by using 30a and 30b, the cost of constructing a wireless charging infrastructure can be reduced. The feed lines (20a, 20b) composed of a feed coil and a core, which will be described below, are built in parallel during road construction when constructing a new road, but when built on an existing road, feed line (20a, 20b) segment in advance It is possible to reduce the construction time of the electric road by precasting the

6 is a view showing various feed core structures of the feed line according to the present invention. The feed core of the present invention is installed on the entire feed line regardless of the coil structure of the segment in order to eliminate the charging blind spot of the feed line. The power supply core 25 of FIG. 5 described above has a grid-type core structure, and is the same as that of FIG. 6(a). The grid-type core structure according to (a) of FIG. 6 can improve charging toughness even when deviation occurs during operation. And Figure 6 (b) is a core structure in the form of a discontinuous horizontal bar in order to reduce the cost of the existing continuous horizontal bar structure, Figure 6 (c) is a discontinuous horizontal bar form to reduce the core cost while slightly improving the left and right deviation and a fusion of vertical bar shapes.

7 to 8 are diagrams showing a phase method applied to a feeding coil of a feed line for each lane according to the present invention.

The feeding coil in FIG. 7 shows a configuration of a method of applying in-phase current, and the feeding coil maintains the same current application phase whenever the lane is changed to reduce the amount of ENI and EMF generated in the lane boundary area. In addition, the feeding coil in FIG. 8 shows a configuration of a method of applying an opposite-phase current. Each time the lane is changed, the current phase of the feeding coil is applied 180 degrees differently to enable robust charging even in the lane boundary area. At this time, a grid-shaped core is installed under the feeding coil so that the magnetic field is directed upwards rather than below the supply line, so that a low-cost grid-shaped core can be used to improve performance in case of deviation.

9 is a configuration diagram illustrating a road power feeding infrastructure system including a power feeding device for a wireless charging electric road while stopping and driving according to the present invention, and is a distributed power feeding infrastructure system. One shared PFC 100 and a plurality of inverters 10a, 10b, ..., 10N are connected in parallel to receive a DC current, which has the effect of reducing power reception cost.

10 is a diagram illustrating a coil structure of a current collector using a power supply device and a system for a wireless charging electric road during stopping and driving according to the present invention. The current collector is a device that receives power from a power supply device on an electric road for wireless charging while stopping and driving, and is provided in various vehicles. In this case, the current collector includes a current collector coil and a core. In the coil of the current collector, a plurality of current collector coils are installed so that an induced voltage greater than or equal to a reference value is selected according to the voltage level of the power supply device, and a current collector core is installed on top of the plurality of current collector coils. Here, the coil has a built-in structure in which several layers of coils of different sizes surround the outer side of the inner coil with the smallest size as shown in FIG. A coil and a coil of an overlap-type structure in which a plurality of coils having the same size overlap only a certain portion as shown in FIG. That is, the number of oval or rectangular pickup coils to be used is adjusted according to the required amount of received power even at the correct position to adjust the amount of received power, and the number of pickup coils to be used is adjusted so that the desired amount of received power can be obtained even in the case of left, right, diagonal, and vertical deviation. do. In addition, the pickup coil structure consists of several coils in a built-in type (a) or an overlapping type (b) to be robust to deviations during driving, and then selects the required amount of power from among the coils above the standard induced voltage according to the voltage level induced in the coil. After generating charging power, the battery is charged. In this case, the unit pickup coil structure may have a square, rectangular, oval, and circular structure, and several pickups may be mounted in the front and rear depending on the vehicle. The current collector is attached to the available underfloor space of all possible vehicles to enable robust charging while driving. On the other hand, the current collecting core uses a grid-type core like the previously described power supply core to reduce cost while enabling robust wireless charging, and use a discontinuous horizontal bar core structure to reduce core cost or use a fusion core structure to reduce left and right deviations improve and reduce costs.

11 is a flowchart of an algorithm for controlling the power feeding device by calculating the high-speed, high-efficiency, high-strength optimal current value of single/multi-vehicle in the electric road power feeding device for charging while stopping and driving according to the present invention.

First, as shown in FIG. 11 , it is determined whether single/multi-vehicles enter the power feeding line of the power feeding device of the present invention (S100). That is, it is checked whether a single/multi-vehicle enters the power feeding device of the present invention described above with reference to FIGS. 1 to 3, wherein the single/multi-vehicle is a single/multi-vehicle equipped with the current collector of the present invention or a general power collector equipped with a current collector. It can be single/multi-vehicle.

As a result of the determination (S100), when a single/multi-vehicle enters the power feeding line, which is the power feeding device of the present invention, the required charging capacity and type of the single/multi-vehicle is estimated (S110).

Then, the amount of power transfer and change from the existing learned system to the single/multi pickup is stored, and the optimal feeding current value is calculated by applying AI learning and estimation techniques (S120), and the estimated single/multi-vehicle charging in step S110 A current is controlled to be provided to at least any one or more feeding coils among a plurality of feeding coils of the feeding line of the present invention so that power corresponding to the capacity and type is provided. In this case, multi class cross entropy loss, sparse multi class cross entropy loss, or Kullback Leibler divergence loss is used as the loss function. Thereafter, it is determined whether single/multi-vehicle charging has been completed under the control of the inverter that provided the optimum feed current value calculated in step S120 (S130), and if charging is not completed, after a certain time has elapsed (S140) The amount of power transfer and change from the existing learned system to the single/multi pickup is stored again, and the optimal feed current value is calculated by applying AI learning and estimation techniques (S120). Again, as the loss function, multi class cross entropy loss, sparse multi class cross entropy loss, or Kullback Leibler divergence loss is used.

12 is a flowchart illustrating a high-speed, high-efficiency, and robust autonomous intelligent charging method of single/multi-vehicle in the electric road power collector for charging while stopping and driving according to the present invention. It is determined whether the device has entered the feed line (S200).

As a result of the determination (S200), when a single/multiple wireless charging vehicle enters the feed line of the present invention, the change amount of the magnetic field measurement value, the current measurement value change amount, and the battery charging speed value change amount in the circular or multi-coil of the single/multi pickup unit are stored do (S210).

And based on the stored values, AI learning and estimation techniques such as SVM and RNN are applied on the basic learned system to measure and align the degree of misalignment in the x-axis, y-axis, and z-axis directions of the approaching vehicle. (S220). In this case, multi class cross entropy loss, sparse multi class cross entropy loss, or Kullback Leibler divergence loss is used as the loss function.

Thereafter, the degree of excess of the misalignment error is determined (S230), and when it is exceeded, the wireless charging vehicle runs on the feed line so that the pickup and the feed line are rearranged (S240).

On the other hand, if it is not exceeded, a change in the current magnitude and phase of the multi-coil of the feed line is requested, an operating frequency adjustment is requested, or an optimal reception coil is selected to support robust high-speed and high-efficiency charging (S250). That is, at least one of the plurality of current collecting coils of the single/multi pickup unit provided in the vehicle is selected. Thereafter, it is determined whether single/multi-vehicle charging is complete (S260), and if single/multi-vehicle charging is not completed, the high-strength, high-speed and high-efficiency charging support continues after a certain time has elapsed (S270) (S250).

Therefore, single/multi pickup requests to change the current magnitude and phase of the multi-coil or to adjust the operating frequency, or selects the optimal receiving coils to enable robust charging even in unaligned situations to support high-speed and high-efficiency charging.

As described above, although the present invention has been described with reference to limited embodiments and drawings, the present invention is not limited thereto, and the technical idea of the present invention and the following by those skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.

1: Median Separator
2: India
10, 11: inverter
20a, 20b, 21a, 21b: feed line
20a_1, 20a_2,...20a_N, 20b_1, 20b_2,..20b_N; feed coil
25: power supply core
30a, 30a_N, 30b: cap box
40: common line
41: switch
100: shared PFC

Claims (18)

inverter; and
A power supply line electrically connected to the inverter and wirelessly supplying power to a vehicle traveling along one lane
includes,
The feed line is
a plurality of power supply coils receiving alternating current from the inverter and partially overlapping each other; and
Feeding core installed at the bottom of the plurality of feeding coils
A power supply device for wireless charging electric roads during stopping and driving, including: The method according to claim 1
The feed line is plural, and a plurality of feed lines are arranged in each lane, and the current application phase of the feed coil of the feed line of one lane and the feed coil of the adjacent feed line of the other lane is the same.
A power supply device for wireless charging while stopping and driving, characterized in that it is an electric road. The method according to claim 1,
The feed line is plural, and a plurality of feed lines are arranged in each lane, and the current application phase of the feed coil of the feed line of one lane and the feed coil of the adjacent feed line of the other lane is 180 degrees different.
A power supply device for wireless charging while stopping and driving, characterized in that it is an electric road. The method according to claim 1,
The feeding core is in the form of a grid
A power supply device for wireless charging while stopping and driving, characterized in that it is an electric road. The method according to claim 1,
The feeding core is in the form of a discontinuous horizontal bar
A power supply device for wireless charging electric roads during stopping and driving, characterized in that The method according to claim 1,
The feeding core is a fusion form of a discontinuous horizontal bar and a continuous vertical bar at both ends
A power supply device for wireless charging while stopping and driving, characterized in that it is an electric road. The method according to claim 1,
The feed line is
A plurality of gap boxes for lowering the voltage applied to the plurality of power supply coils
A power supply device for wireless charging electric road during stopping and driving further comprising a. inverter; and
a power supply line electrically connected to the inverter and configured with a plurality of segments for wirelessly supplying power to a vehicle traveling along one lane; and
A common line electrically connected to the inverter and configured to transmit AC power to each of the plurality of segments
includes,
Each segment is
a plurality of power supply coils receiving alternating current from the common line and partially overlapping each other; and
Feeding core installed at the bottom of the plurality of feeding coils
A power supply device for wireless charging electric roads during stopping and driving, including: 9. The method of claim 8,
A plurality of cap boxes for lowering the voltage applied to the common line
A power supply device for wireless charging electric road during stopping and driving further comprising a. 9. The method of claim 8,
The feeding core is in the form of a grid
A power supply device for wireless charging while stopping and driving, characterized in that it is an electric road. 9. The method of claim 8,
The feeding core is in the form of a discontinuous horizontal bar
A power supply device for wireless charging while stopping and driving, characterized in that it is an electric road. 9. The method of claim 8,
The feeding core is a fusion of a discontinuous horizontal bar and a continuous vertical bar at both ends
A power supply device for wireless charging while stopping and driving, characterized in that it is an electric road. a plurality of current collecting coils installed such that an induced voltage higher than a reference value is selected according to the voltage level; and
a current collector core installed on the top of the plurality of current collector coils
A power collector for a vehicle on an electric road for wireless charging while stopping and driving, comprising: 14. The method of claim 13,
The current collecting coil is a built-in type
A power collector for a vehicle on an electric road with wireless charging during stopping and driving, characterized in that 14. The method of claim 13,
The current collecting coil is a stacked type
A power collector for a vehicle on an electric road with wireless charging during stopping and driving, characterized in that two or more inverters according to claim 1 or 8;
Shared PFC that is electrically connected to each of the inverters in direct current to supply current and receive three-phase power
A power supply system for wireless charging electric roads during stopping and driving, including: (a) checking the vehicle entering the feed line in the power feeding device;
(b) estimating the charging capacity of the vehicle identified in step (a); and
(c) allowing a current to flow in at least any one of the power feed coils of the feed line so that power corresponding to the charging capacity of the vehicle estimated in step (b) is provided
A method of controlling a power supply device of a wireless charging electric road during stopping and driving, comprising: (a) confirming that the vehicle equipped with the multi-pickup unit enters the power feeding line of the power feeding device;
(b) detecting the degree of misalignment in the feed line entered in step (a);
(c) selecting at least one of the plurality of current collecting coils of the multi-pick-up unit according to the degree of misalignment detection in step (b).
A method of controlling a current collector for a vehicle on an electric road for wireless charging while stopping and driving, comprising:

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