KR102589050B1 - 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 while stopping and driving on an electric road, and more specifically, to a wireless power supply and collection system for buses, trucks, and passenger cars on electric roads, and for transportation systems at airports, ports, campuses, etc. This relates to a charging electric road power supply and collection method while stopped and driving for a wireless power supply and collection system.

Description

{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 collection system while stopping and driving on an electric road. More specifically, in constructing a charging infrastructure for an electric road, the present invention is sensitive to the left-right and up-down deviations of electric vehicles to satisfy maximum power and maximum efficiency. It relates to a power supply device and current collector for wireless charging electric roads while stopping and driving, and a power supply system for the same.

In general, WiTricity in the U.S. developed a 3.3kW magnetic resonance wireless charger and conducted experimental verification by applying it to Toyota Motor Company in Japan. Afterwards, it is developing 6.6kW and 11kW magnetic resonance wireless chargers, and Qualcomm-Halo is developing Spark Renault. A demonstration was made by applying magnetic resonance wireless charging technology to -01E. And Japan's Toyoda and Nissan have licensed Witricity's wireless charging technology and are using the circular coil structure. They have been conducting empirical research on the Prius plug-in hybrid vehicle since February 2014 and are pursuing international standardization (SAE) centered on JARI (Japan Automotive Research Institute). /IEC) is being promoted. In addition, Germany's Bombardier developed PRIMOVE, a wireless charging electric tram, and operated a test line in Mannheim, Germany. It is a technology that enables wireless charging while stopped by installing wireless charging infrastructure at bus stops and parking lots, enabling up to 100 kW of power wirelessly. It is possible to supply. In Korea, a self-resonant online electric vehicle wireless charging technology was developed, and 150 kW of power is transmitted with a transmission efficiency of up to 90% at a distance of 20 cm through a power supply coil buried in the road and a current collection coil built into the bus, thereby generating electricity. This is a technology that charges the battery of a bus, enabling charging while driving through power supply coils buried in segments on the road. In Europe, FABRIC (Feasibility Analysis and Development of On-road Charging Solutions for Future Electric Vehicles) is available. The project is in progress, and 23 European organizations (automobile manufacturers, energy companies, road companies, research institutes, etc.) have formed a consortium to analyze the feasibility of wireless road charging technology and conduct research and development in the long term. Research and measurements on wireless charging technology are being conducted with related organizations at three test sites (France, Italy, and Sweden), and Qualcomm demonstrated wireless charging while driving a passenger car in France. And Israel's Electreon is conducting a pilot project for wireless charging of buses while driving in downtown Tel Aviv, and is also conducting a pilot project for wireless charging of trucks while driving in Sweden.

As such, research on wireless charging is being conducted around the world, but the cost of building road charging infrastructure while driving and stopping is high, the structure of the feeder line and the placement of inverters and cap boxes, etc. are not taken into consideration, and high-speed charging is required when charging multiple types of vehicles. In order to increase the highest efficiency, much research is still needed.

US 2016/0339785A1

The present invention was created to solve this problem, taking into account the infrastructure structure that minimizes the cost required when building road charging infrastructure while driving and stopping, the optimal placement of inverters and cap boxes, etc., and considering high-speed charging when charging multiple vehicles of various types. For the most efficient charging, the purpose is to adjust the amount of current flowing into the feed line based on the battery size and charging status of multiple vehicles.

In addition, when left-right or up-down deviation occurs between the feed line and the current collector, a strong feed coil and current collector coil structure is considered. If the deviation is severe and the received power is below the standard value, the inverter increases the current applied to the feed line to secure the received rated capacity. The purpose is to

In order to achieve this purpose, a power supply device for wireless charging electric road during stopping and driving according to the present invention, comprising: an inverter; and a feed line electrically connected to the inverter and for wirelessly supplying power to vehicles traveling along one lane, wherein the feed line receives alternating current from the inverter and partially overlaps each other. A plurality of feeding coils arranged; and a power supply core installed at the bottom of the plurality of power supply coils.

There are a plurality of feed lines, 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 is the same as that of the adjacent feed coil of the other adjacent lane.

There are a plurality of feed lines, 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 adjacent feed coil of the other adjacent lane are 180 degrees different.

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

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

The feed core is in the form of a fusion of discontinuous horizontal bars and continuous vertical bars 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 this purpose is an inverter; and a feed line electrically connected to the inverter and composed of a plurality of segments for wirelessly supplying power to vehicles traveling along one lane. and a common line that is electrically connected to the inverter and transmits alternating current power to each of the plurality of segments, wherein each segment receives an alternating current from the common line and is disposed to partially overlap each other. power supply coil; and a power supply core installed at the bottom of the plurality of power supply coils.

It further includes a plurality of cap boxes that lower the voltage applied to the common line.

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

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

The feed 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 this purpose is a plurality of current collecting coils installed so that an induced voltage higher than a reference value is selected according to the 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 of an overlapping type.

Another aspect of the present invention for achieving this object is two or more inverters set forth in claim 1 or claim 8;

It includes a shared PFC that is electrically connected to each inverter through direct current to supply current and receive three-phase power.

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

Another aspect of the present invention for achieving this purpose is (a) confirming that a vehicle equipped with a multiple pickup unit enters the feed line of the power feeder; (b) detecting the degree of misalignment in the feed line entered in step (a); (c) selecting at least one current collecting coil among the plurality of current collecting coils of the multi-pickup unit according to the degree of misalignment detection in step (b).

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

In addition, we maximize convenience by providing high-speed charging services according to the driver's request for multiple types of vehicles, and minimize energy consumption by providing maximum efficiency services. If the received power amount is below the standard value, feedback control provides the rated receiving capacity and efficiency above the standard value, contributing to the spread of wireless charging electric vehicles.

1 and 2 are diagrams illustrating a first embodiment of the installation of 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.
Figure 3 is a detailed configuration diagram showing the feed line installed in one lane in the power supply device of the wireless charging electric road during stopping and driving according to the present invention.
Figure 4 is a configuration diagram showing a second embodiment of the installation of 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.
Figure 5 is a diagram showing a cap box using a common line in the second embodiment of the present invention according to Figure 4.
Figure 6 is a diagram showing various feed core structures of a feed line according to the present invention.
Figures 7 and 8 are diagrams showing the phase method applied to the power supply coil for each lane according to the present invention.
Figure 9 is a diagram showing a road power supply infrastructure system including a wireless charging electric road power supply device during stopping and driving according to the present invention.
Figure 10 is a diagram showing the coil structure of a current collector using a power supply device and system for a wireless charging electric road during stopping and driving according to the present invention.
Figure 11 is a flowchart showing an algorithm in which the power supply infrastructure autonomously supports high-speed, high-efficiency charging in the charging electric road feeder while stopping and driving according to the present invention.
Figure 12 is a flow chart showing an algorithm in which a pickup autonomously supports high-speed, high-efficiency charging in a charging electric road current collector 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 attached drawings. Prior to this, the terms or words used in this specification and claims should not be construed as limited to their usual or dictionary meanings, and the inventor should appropriately use the concept of terms to explain his or her invention in the best way. It must be interpreted as meaning and concept consistent with the technical idea of the present invention based on the principle of definability. Accordingly, the embodiments described in this specification and the configurations shown in the drawings are only one of the most preferred embodiments of the present invention and do not represent the entire technical idea of the present invention, so at the time of filing this application, various alternatives are available to replace them. It should be understood that equivalents and variations may exist.

1 and 2 are diagrams illustrating a first embodiment of the installation of 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.

Referring to Figures 1 and 2, the road power supply infrastructure including the power supply device for 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, 21b) for wirelessly supplying power to a plurality of lanes. At this time, the feed lines (20a, 20b, 21a, 21b) of each lane are connected to a plurality of feed coils (20a_1, 20a_N). ), (20b_1, 20b_N). Here, Figure 1 shows the power supply infrastructure structure on a road with a median divider (1). In the case of a road with a median divider (1), one inverter (10) is installed in the center of the road or at the location of the median divider (1), It is installed semi-underground or underground to support multiple feed lines (20a, 20b) on the up or down line to reduce infrastructure construction costs. 2 shows the basic configuration of the power supply infrastructure for a road without a median, in which the inverters 10 and 11 are installed on the sidewalk 2. At this time, inverters (10, 11) are shared and installed on flat ground, and feed lines (20a, 20b, 21a, 21b) are installed only on the uphill slope. At this time, the inverters (10, 11) apply power to the feed lines (20a, 20b) of the up or down multiple lanes when necessary, and apply the necessary power to the feed lines (20a, 20b, 21a, 21b) of the up or down multiple lanes. do. Meanwhile, the inverters 10 and 11 independently apply power to the feed lines 20a, 20b, 21a, and 21b of each lane. In addition, power can be supplied independently to a plurality of feed coils that make up the feed lines 20a, 20b, 21a, and 21b to be explained in FIG. 3.

Figure 3 is a detailed configuration diagram showing the feed line installed in one lane in the power feeder of the wireless charging electric road during stopping and driving according to the present invention.

As shown in FIG. 3, the feed line 20a of one lane, for example, one lane shown in FIGS. 1 to 3, receives alternating 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 bottom of the plurality of feeding coils (20a_1, 20a_2, 20a_N). For reference, it is specified that the plurality of power supply coils (20a_1, 20a_2, 20a_N) have the same length. That is, the feed lines (20a, 20b) for each of the up and down lanes include a plurality of oval (rectangular) feed coils (20a_1, 20a_2, 20a_N) with appropriate lengths and a grid-type core installed below the feed coils (20a_1, 20a_2, 20a_N). It consists of structure (25). Such a feed line 20a has the effect of increasing robustness in the event of left-right and up-down diagonal deviations of the vehicle. 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 to ensure smooth wireless charging even while buses, large trucks, small trucks, passenger cars, etc. are driving on the road or while stopped. , 20a_2, 20a_N) are installed partially overlapping, and the spacing of each coil is optimally determined. In addition, to prevent EMF problems from occurring, the width of the individual power supply coils (20a_1, 20a_2, 20a_N) is made smaller than the width of the passenger car with the smallest vehicle width.

Figure 4 is a configuration diagram showing a second embodiment of the installation of 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.

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

Figure 5 is a diagram showing a cap box using a common line in the second embodiment of the present invention according to Figure 4.

Referring to FIG. 5, one inverter 10 and a common line 40 connected to this one inverter 10 to transmit alternating current power to the feed line 20a are shown. The feed line 20a described above wirelessly supplies power to a plurality of lanes from an inverter, but in the second embodiment, power is supplied from one inverter 10 to a plurality of lanes through a common line 40 connected to the inverter 10. Ensure that power is supplied to the feed line (20a) provided in . This common line 40 is a power line necessary to extend the feed line 20a, and the common line 40 is generally used when configuring the feed line 20a by segmenting it. Additionally, one pair of common lines 40 is required per segment, and a switch 41 is required for each pair of common lines 40. The biggest feature of the present invention is to transmit current to the common line 40 through the inverter 10. At this time, when the common line 40 becomes long, a plurality of cap boxes are used to lower the voltage applied to the common line 40. (30a..30a_N) is provided. Meanwhile, in FIG. 5, the switch 41 is shown on only one of the plurality of power supply coils (see FIG. 3) constituting the power supply line 20a, but it is specified that a switch is provided for each power supply coil. Meanwhile, Figure 5 shows a plurality of feed lines composed of a plurality of segments for wirelessly supplying power in one lane, but the same applies to multiple lanes. That is, after the inverter 10 identifies the up or down electric road and lane based on GPS-based vehicle location information and vehicle speed, power is applied to the segment immediately before the wireless charging vehicle enters the segment, thereby consuming standby power. is minimized, and the starting point of the segment for each lane is determined considering the shortest path. Here, the cap boxes (30a, 30a_N) can be installed on the center divider or sidewalk closest to the segment to minimize standby power loss and maximize the segment extension length. At this time, the power of the corresponding segment of the inverter 10 is controlled just before the vehicle enters by using the camera-based vehicle location and identification information and vehicle speed installed on the median, sidewalk, road, or road, or GPS-based vehicle location information and vehicle speed information. Based on this, the power of the corresponding segment of the inverter is controlled. That is, Figure 4 is a diagram showing the configuration of a power supply infrastructure in which the length of the feed lines (20a, 20b) is extended using cap boxes (30a, 30b) made of capacitors, and the feed lines (20a, 20b) are cap boxes. Using (30a, 30b), the segment length that can be charged by one inverter 10 can be extended to reduce the cost of building a wireless charging infrastructure. The feed lines (20a, 20b), which are composed of feed coils and cores, which will be explained below, are built in parallel during road construction when building a new road, but when building on an existing road, the feed line (20a, 20b) segments are built in advance. Electric road construction time can be reduced by precasting.

Figure 6 is a diagram 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 charging blind spots in the feed line. The power feeding core 25 of FIG. 5 described above has a grid-type core structure, as shown in (a) of FIG. 6. The lattice core structure according to (a) of FIG. 6 can improve charging robustness even if deviation occurs during operation. And Figure 6 (b) is a core structure in the form of a discontinuous horizontal bar to reduce the cost of the existing continuous horizontal bar structure, and Figure 6 (c) is a discontinuous horizontal bar form to reduce the core cost while slightly improving the left and right deviation. It is a structure that combines the shapes of vertical bars and vertical bars.

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

The feeding coil in FIG. 7 shows a configuration that applies in-phase current, and the feeding coil maintains the current application phase the same whenever the lane changes, thereby reducing the amount of ENI and EMF generated in the lane boundary area. The power supply coil in FIG. 8 shows a configuration that applies an opposite-phase current, and the current phase of the power supply coil is applied 180 degrees differently every time the lane changes, enabling robust charging even in the lane boundary area. At this time, a grid-shaped core is installed under the feed coil so that the magnetic field is directed above the feed line rather than below the feed line, so that performance in the event of deviation can be improved by using a low-cost grid-shaped core.

Figure 9 is a block diagram showing a road power supply infrastructure system including a power supply device for a wireless charging electric road during stopping and driving according to the present invention, and is a distributed power supply infrastructure system. One shared PFC (100) and multiple inverters (10a, 10b,...,10N) are connected in parallel to receive direct current, which has the effect of reducing power reception costs.

Figure 10 is a diagram showing the coil structure of a current collector using a power supply device and system for a wireless charging electric road during stopping and driving according to the present invention. A current collector is a device that receives power from a power supply device on a wireless charging electric road while stopped or driving, and is provided in various vehicles. At this time, the current collector is composed of a current collection coil and a core. The coil of the current collector is installed with a plurality of current collection coils so that an induced voltage higher than a standard value is selected according to the voltage level of the power feeder, and a current collection core is installed on top of the plurality of current collection coils. Here, the coil has a built-in structure in which several layers of coils of different sizes surround the outer coil of the smallest inner coil, as shown in (a) of Figure 10, so that an induced voltage above the standard value is selected according to the voltage level of the power supply device. The coil, as shown in (b) of FIG. 10, and a coil of an overlapping structure in which several coils of the same size are positioned differently so that only a certain portion of the coil overlaps, may be configured in various shapes such as square, rectangular, oval, and circular. In other words, adjust the amount of received power by adjusting the number of multiple coils of oval or rectangular pickups to be used in accordance with the required amount of received power even in a fixed position, and adjust the number of pickup coils to be used so that the desired amount of received power can be obtained even when left, right, diagonal, or up and down. do. In addition, the pickup coil structure consists of several coils in a built-in form (a) or an overlapping form (b) to ensure robustness to deviations while driving, and then selects a coil for the required amount of power among coils with a reference induced voltage or higher according to the voltage level induced in the coil, thereby wirelessly After generating charging power, the battery is charged. At this time, the unit pickup coil structure can have square, rectangular, oval, and circular structures, and multiple pickups can be installed front and back depending on the vehicle. The current collector is attached to the available underfloor space of every vehicle to enable robust charging while driving. Meanwhile, the current collection core uses a lattice-shaped core similar to the previously described power supply core to enable robust wireless charging while reducing costs, and uses a discontinuous horizontal bar core structure to reduce core costs or uses a fused core structure to reduce left and right deviation. improve and reduce costs.

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

First, as shown in FIG. 11, it is determined whether single/multiple vehicles enter the feed line of the power feeder of the present invention (S100). That is, it is checked whether a single/multiple vehicle enters the power supply device of the present invention previously described in FIGS. 1 to 3, where the single/multiple vehicle is a single/multiple vehicle equipped with the current collector of the present invention or a general current collector. Can be single/multiple vehicles.

As a result of the determination (S100), when a single/multiple vehicle enters the feed line, which is the power supply device of the present invention, the charging capacity and type of the single/multiple vehicles are estimated (S110).

In addition, the amount of power transfer and change from the existing learned system to the single/multiple pickups are stored, and the optimal supply current value is calculated by applying AI learning and estimation techniques (S120) to charge the single/multiple vehicles estimated in step S110. Current is controlled to be provided to at least one of the plurality of feed coils of the feed line of the present invention so that power corresponding to the capacity and type is provided. At this time, multi class cross entropy loss, sparse multi class cross entropy loss, or Kullback Leibler divergence loss is used as the loss function. Afterwards, it is determined whether single/multiple vehicle charging has been completed by controlling the inverter that provided the optimal supply 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 single/multiple pickups is saved again, and the optimal feeding current value is calculated by applying AI learning and estimation techniques (S120). Here too, multi class cross entropy loss, sparse multi class cross entropy loss, or Kullback Leibler divergence loss is used as the loss function.

Figure 12 is a flowchart showing a high-speed, high-efficiency, high-strength autonomous intelligent charging method for single/multiple vehicles in an electric road current collector for charging while stopped and driving according to the present invention. A wireless charging vehicle equipped with a single/multiple pickup unit supplies power according to the present invention. Determine whether the device has entered the feed line (S200).

As a result of judgment (S200), when a single/multiple wireless charging vehicle enters the feed line of the present invention, the change in magnetic field measurement value, change in current measurement value, and change in battery charging speed value are stored in the circular or multi-coil of the single/multiple pickup unit. Do it (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 the degree of misalignment in the x-axis, y-axis, and z-axis directions of the entering vehicle and guide the alignment. (S220). At this time, multi class cross entropy loss, sparse multi class cross entropy loss, or Kullback Leibler divergence loss is used as the loss function.

Afterwards, the excess degree of the misalignment error is determined (S230), and if it is exceeded, the wireless charging vehicle drives on the feed line so that the pickup and feed line are realigned (S240).

On the other hand, if it is not exceeded, it supports robust, high-speed, high-efficiency charging by requesting a change in the current size and phase of the multi-coil of the feed line, requesting adjustment of the operating frequency, or selecting the optimal receiving coils (S250). That is, at least one current collecting coil is selected among the plurality of current collecting coils of the single/multiple pickup unit provided in the vehicle. Afterwards, it is determined whether single/multiple vehicle charging is completed (S260), and if single/multiple vehicle charging is not completed, high-strength, high-speed, high-efficiency charging support is continued after a certain period of time (S270) has elapsed (S250).

Therefore, single/multiple pickups request changes in the current size and phase of the multi-coil, adjust the operating frequency, or select the optimal receiving coils to enable robust charging even in misalignment situations, supporting high-speed, high-efficiency charging.

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

1: Center divider
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: Feeder core
30a, 30a_N, 30b: Cap box
40: Common line
41: switch
100: Shared PFC

Claims (18)

inverter; and,
A power supply line that is electrically connected to the inverter and wirelessly supplies power to vehicles traveling along one lane.
Includes,
The feed line is,
a plurality of power supply coils that receive alternating current from the inverter and are arranged to partially overlap each other; and,
Feeding core installed at the bottom of the plurality of feeding coils
Including,
The feed lines are 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 adjacent feed coil of the other adjacent lane is the same or 180 degrees different.
Wireless charging electric road power supply device during stopping and driving, including.
delete delete In claim 1,
The power supply core is in the form of a grid.
A power supply device for wireless charging electric roads while stopped and driving. In claim 1,
The feed core is in the form of a discontinuous horizontal bar.
A power supply device for wireless charging electric roads while stopped and driving. In claim 1,
The feed core is in the form of a fusion of discontinuous horizontal bars and continuous vertical bars at both ends.
A power supply device for wireless charging electric roads while stopped and driving. In 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 roads while stopping and driving, further comprising: inverter; and,
a feed line electrically connected to the inverter and composed of a plurality of segments to wirelessly supply power to vehicles traveling along one lane; and
A common line electrically connected to the inverter and transmitting alternating current power to each of the plurality of segments.
Includes,
Each segment above is,
a plurality of power supply coils that receive alternating current from the common line and are arranged to partially overlap each other; and,
Feeding core installed at the bottom of the plurality of feeding coils
Including,
The feed lines are 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 adjacent feed coil of the other adjacent lane is the same or 180 degrees different.
Wireless charging electric road power supply device during stopping and driving, including. In claim 8,
A plurality of cap boxes that lower the voltage applied to the common line
A power supply device for wireless charging electric roads while stopping and driving, further comprising: In claim 8,
The power supply core is in the form of a grid.
A power supply device for wireless charging electric roads while stopped and driving. In claim 8,
The feed core is in the form of a discontinuous horizontal bar.
A power supply device for wireless charging electric roads while stopped and driving. In claim 8,
The feed core is a fusion of a discontinuous horizontal bar and a continuous vertical bar at both ends.
A power supply device for wireless charging electric roads while stopped and driving. A plurality of current collecting coils installed so that an induced voltage higher than a reference value is selected according to the voltage level; and,
A current collection core installed on top of the plurality of current collection coils.
Includes,
As for the current collecting coil, at least one coil is selected so that the required amount of received power is obtained even when there is a deviation during driving.
A current collector for vehicles on electric roads with wireless charging while stopped and driving. In claim 13,
The current collecting coil is a built-in type.
A current collector for vehicles on electric roads with wireless charging while stopped and driving. In claim 13,
The current collecting coil is of an overlapping type.
A current collector for vehicles on electric roads with wireless charging while stopped and driving. Two or more power feeding devices according to claim 1 or claim 8;
A shared PFC that is electrically connected to each power supply device through direct current to supply current and receive three-phase power.
A power supply system for wireless charging electric roads while stopping and driving. As a method of controlling the power supply device according to claim 1 or 8,
(a) Checking the vehicle entering the feed line at the power feeder;
(b) estimating the charging capacity of the vehicle identified in step (a); and
(c) allowing current to flow through at least one feed coil of the feed lines 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 for a wireless charging electric road while stopping and driving, including. A method for controlling the vehicle current collector according to claim 13, comprising:
(a) Confirming that a vehicle equipped with a multiple pickup unit enters the feed line of the power feeder;
(b) detecting the degree of misalignment in the feed line entered in step (a);
(c) selecting at least one current collecting coil among the plurality of current collecting coils of the multi-pickup unit according to the required received power requirements according to the degree of misalignment detection in step (b).
A method of controlling a current collector for a vehicle on a wireless charging electric road while stopped and driving, including.