KR102398196B1 - Electric vehicle charging platform and platform operation method - Google Patents

Abstract

The present invention relates to an electric vehicle charging platform operation method. According to one aspect of the present invention, an electric vehicle charging platform comprises: a storage system receiving direct current to store or discharge the direct current; and an electric vehicle charging system converting alternating current into the direct current supplied from a power plant and supplying the direct current to an electric vehicle or a storage system. The electric vehicle charging system links a first direct current discharged from the storage system and a second direct current supplied from the power plant in parallel when charging the electric vehicle to simultaneously supply the linked current to the electric vehicle.

Description

Electric vehicle charging platform and platform operation method

The present invention relates to an electric vehicle charging platform and a platform operating method, which can improve the power efficiency for charging and reduce the reinstallation cost of a charging system that needs to be reinstalled in order to increase the output quantity by improving the supply output quantity of the existing charging system It relates to a method of operating an electric vehicle charging platform that can be

In general, automobiles use gasoline or diesel as fuel. Gasoline or diesel not only generates harmful gases when burned, but also causes air pollution. Among them, electric vehicles are in the spotlight as a solution to automobiles.

With the spread of electric vehicles, the demand for charging is also increasing, and accordingly, it is necessary to expand the charging infrastructure. The electric vehicle may be charged in various ways, and the temperature of the battery or electric vehicle may rise during charging, which may lead to a safety accident.

Therefore, in Korea, by setting contract power that can supply current at a place where electric vehicles can be charged, cables that can charge electric vehicles, etc. can be installed on condition that the current according to the contract power is satisfied for movement. there is.

The electric vehicle is connected to a charger for charging the battery, and the battery is charged by direct current or alternating current supplied from the charger to the electric vehicle.

In this case, the charger may charge an electric vehicle requiring various output amounts, and in order to charge an electric vehicle requiring various output amounts, it is necessary to increase the output amount of the charger.

Therefore, in order to install a charger with a continuously high output due to the need for rapid charging in an electric vehicle, it is necessary to replace the existing charger, and the cost for dismantling the existing charger and installing a new charger is excessive. there is.

The present invention has been devised on the basis of the technical background as described above, and the present invention enables a plurality of chargers having a low output to be used in parallel by increasing the utilization of an electric vehicle charger that has been left unattended due to low utilization. An object of the present invention is to provide an electric vehicle charging platform and platform operating method that can efficiently use electric energy by connecting and outputting a high output amount.

In order to achieve the above object, the present invention provides a storage system that receives and stores or discharges DC power, converts AC power supplied from a power plant into DC power, and supplies the DC power to an electric vehicle or a storage system. and a charging system, wherein, when the electric vehicle is charged, the first DC power discharged from the storage system and the second DC power supplied from the power plant are connected in parallel to the electric vehicle. can be supplied at the same time.

In addition, the storage system converts the energy storage unit for storing the first DC power with preset voltage and current values and the second DC power supplied from the charging system to charge the storage unit to generate the first DC power. Energy for generating and converting the first DC power stored in the energy storage unit to discharge to the electric vehicle charging system It includes a converter, and controls the energy converter to discharge the DC power stored in the energy storage unit according to the request of the electric vehicle charging system when the electric vehicle is charged, and requests the charging system when the electric vehicle is in standby mode. and an energy control unit for controlling and charging the energy conversion unit so that the converted second DC power supplied from the power plant is converted into the first DC power.

In addition, the electric vehicle charging system supplies a charging power converter for receiving AC power from the power plant and converting it into second DC power and the DC power to the electric vehicle or the storage system, and when charging the electric vehicle, the electric vehicle is charged. The first DC power supplied from the storage system and the second DC power received and converted from the power plant are connected in parallel to supply to the electric vehicle, and the first DC power supplied from the power plant and converted when the electric vehicle is waiting for charging 2 It may include a charging power control unit for supplying DC power to the storage system.

In addition, in the electric vehicle charging system, a camera is installed in the direction in which the electric vehicle is parked and stopped, and a set range of a rectangular shape divided into a plurality of layers is formed in the field of view of the camera, and the license plate of the electric vehicle is within the set range. According to the corresponding position, the charging or charging standby state of the electric vehicle may be determined.

determining whether the electric vehicle is charging or waiting to be charged; when the electric vehicle is charged, the electric vehicle charging system supplies the converted second DC power from the power plant to the electric vehicle, but the first direct current supplied from the storage system In the electric vehicle power supply step of supplying electric power to the electric vehicle in parallel with the power plant, and when the electric vehicle is in standby for charging, the second DC power supplied from the power plant and converted is reconverted and stored in the storage system It may include a storage step.

In addition, the determining of the charging or charging standby may include detecting and determining the location of the electric vehicle.

In addition, the electric vehicle power supply step includes a checking step of checking the maximum voltage and current that the electric vehicle can accommodate, a first SoC information checking step of checking SoC information of the storage system, and checking the SoC information. A supply request step of requesting supply of the first DC power stored in the storage system when the SoC value is equal to or greater than the first reference value, and the first DC power supplied from the storage system and the second DC power supplied from the power plant and converted in parallel It may include an additional supply step of supplying to the electric vehicle in connection with the

In addition, the storage step includes a second SoC information checking step for checking SoC information of the storage system, and when the SoC information is checked and the SoC value is less than or equal to a second reference value, the electric vehicle charging system is supplied from the power plant and converted. A storage request step of requesting supply of a second DC power and a power storage step of reconverting the second DC power converted and supplied by the electric vehicle charging system to store the first DC power in the storage system. there is.

The electric vehicle charging platform operating method according to an embodiment of the present invention can reuse the existing charger, which can reduce the cost of dismantling the existing charger and the installation cost of a charger having a different output, and low output. By connecting a plurality of chargers with .

1 is a conceptual diagram of an electric vehicle charging platform according to an embodiment of the present invention.
2 is a block diagram of a storage system and an electric vehicle charging system according to an embodiment of the present invention.
3 is a diagram illustrating power supply of an electric vehicle charging platform according to an embodiment of the present invention.
4 is a flowchart of a platform for charging an electric vehicle when charging or waiting for charging according to an embodiment of the present invention.
5 is a diagram showing a charging schematic diagram of an electric vehicle charging platform according to an embodiment of the present invention.
6 is a flowchart of a method for operating an electric automatic window charging platform according to an embodiment of the present invention.

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

Advantages and features of the present invention, and a method for achieving the same, will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings.

However, the present invention is not limited by the embodiments disclosed below, but will be implemented in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the art to which the present invention pertains It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims.

In addition, in the description of the present invention, when it is determined that related known techniques may obscure the gist of the present invention, a detailed description thereof will be omitted.

1 is a conceptual diagram of an electric vehicle charging platform according to an embodiment of the present invention, FIG. 2 is a block diagram of a storage system and an electric vehicle charging system according to an embodiment of the present invention, and FIG. 3 is an embodiment of the present invention It is a view showing power supply of an electric vehicle charging platform according to an embodiment, and FIG. 4 is a flowchart for a platform for charging an electric vehicle when charging or charging standby according to an embodiment of the present invention, and FIG. 5 is an embodiment of the present invention It is a diagram showing a charging schematic diagram of an electric vehicle charging platform according to an embodiment.

1 to 5 , in the electric vehicle charging platform 10 according to an embodiment of the present invention, the electric vehicle charging system 300 receives the power supplied from the power plant (F), and the electric vehicle (C) When charging in the electric vehicle (C), determine the location of the electric vehicle (C), determine the connection status of the electric vehicle (C) and the charger, determine the amount of output charged by the electric vehicle (C), By separately storing the storage system 100 in order to supply power suitable for the required output amount, the low output amount supplied from the power plant F can be connected in parallel as needed when charging the electric vehicle C to increase the output amount. , it may include a storage system 100 and an electric vehicle charging system 300 to minimize surplus power and improve power efficiency.

The charging state, which will be described later, refers to a state in which the electric vehicle C is being charged at a charging station, and the charging standby state refers to a state in which the electric vehicle is not charging the electric vehicle C at the charging station.

In this case, whether the electric vehicle C is charged or not may be determined by sensors installed in the electric vehicle charging system 300 . For example, the camera may be installed at a height corresponding to the position where the license plate is installed in the electric vehicle (C).

In addition, the camera may set a setting range of a rectangular shape with an empty interior on the screen. In addition, the setting range may be set to a plurality of compartments to correspond to the electric vehicle C that may have different sizes. For example, a plurality of compartments are set from the top in one setting range, so that the vehicle body can be accurately set up to the position of the electric vehicle C, such as an SUV, which is higher than the passenger car. That is, it may be formed in a '目' shape. For example, whether the license plate of the electric vehicle (C) matches may be a method used for a QR code.

At this time, when the electric vehicle (C) comes within a certain distance, depending on the distance, the electric vehicle (C) can be confirmed that the electric vehicle (C) is in stock while corresponding to the range of the rectangular shape, and a sound indicating that the charging is ready can be generated. In addition, when the size of the license plate becomes larger than the set range of the rectangular shape, it is determined that the electric vehicle (C) is excessively close to the charging system (C) side, and a warning sound may be generated.

Through this, depending on the distance of the license plate, it can be determined that the electric vehicle (C) is parked and stopped within the correct range, the distance interval can be determined as the setting range formed in the camera, and the charging state and charging standby state can be determined by the connection of the connector. It can be known in advance of the charging start time that can be started, so that the electric vehicle charging system 300 is powered on, or the charging power conversion unit 310 is active, the charging power conversion unit 310 and the energy storage unit 300 ) may be discharged in winter, etc., so applying heat to a certain temperature may be performed in advance.

In addition, it is possible to accurately charge the electric vehicle (C) through the setting range, it is possible to prevent a collision between the rear and the electric vehicle charging system (300) in advance.

The storage system 100 separately stores the power supplied from the power plant F in a state in which the electric vehicle C is waiting to be charged at the charging station, and is connected in parallel with the electric vehicle charging system 300 during charging to generate electricity at the same time. It may include an energy storage unit 110 , an energy conversion unit 130 , and an energy control unit 150 to charge the vehicle C .

The energy storage unit 110 may store AC power supplied from the power plant F after being converted into first DC power through the charging power conversion unit 310 of the electric vehicle charging system 300 to be described later. In this case, the first DC power may be converted into voltage and current values preset by the energy storage unit 110 through the energy conversion unit 130 and stored.

When the AC power supplied from the power plant F is converted into first DC power and supplied, the energy conversion unit 130 converts the current and voltage of the supplied first DC power, and converts the power to the energy storage unit 110 . can supply

For example, when the AC power supplied to the power plant is converted into the first DC power and stored in the energy storage unit 110 , the energy conversion unit 130 is converted in the electric vehicle charging system 300 and the electric vehicle C ) can be set lower than the voltage and current supplied to it.

That is, when the power supplied from the power plant F is 50KW, when the electric vehicle charging system 300 is on standby for charging, the 50KW power supplied from the power plant F is converted into 10KW or less in the form of slow charging, and the storage system (100) can be stored. That is, when the vehicle charging standby time becomes longer, such as dawn time, the 50KW power delivered from the electric vehicle charging system 300 is converted by the energy converter 130 to 10KW or less, a converter that lowers the current and voltage By being installed, power can be stored in the storage system 100 .

Through this, when the charging standby time is made for a long time, the energy storage unit that can be saved by rapid charging by extending the power charging time of the energy storage unit 110 by slow charging when the energy storage unit 110 is stored The lifetime of 110 may be extended.

The energy control unit 150 determines whether power supplied to the energy storage unit 110 is converted, and determines whether additional power is supplied from the energy storage unit 110 to the electric vehicle C when the electric vehicle C is charged. By determining, it is possible to control whether the first DC power is supplied from the energy storage unit 110 to the electric vehicle C. In this case, the power supplied from the energy storage unit 110 to the electric vehicle C may be the discharge of the energy storage unit 110 .

The electric vehicle charging system 300 according to an embodiment of the present invention converts the AC power supplied from the power plant F into the second DC power so as to be supplied to the electric vehicle C, the charging power conversion unit 310 and a charging power control unit 330 .

In this case, the electric vehicle charging system 300 may be an ESS capable of charging the electric power produced in the power plant (F).

The charging power converter 310 may convert the AC power supplied from the power plant F into DC power and supply it to the electric vehicle C. In this case, the power plant F may supply power to the charger according to the amount of power supplied. In this case, the power supplied from the power plant F may be a contract current.

For example, in the power plant F, a plurality of chargers installed in the charging station may each charge 50KW of power to the vehicle by the contract current delivered to the charging station.

The charging charging power conversion unit 310 may convert the AC power supplied from the power plant F into the second DC power. In addition, the charging power conversion unit 310 may supply the converted second DC power to the electric vehicle (C) storage system 100 .

In addition, the charging power control unit 330 converts the AC power delivered from the power plant (F) into the second DC power in the charging power conversion unit 310, and converts the converted second DC power into the electric vehicle (C) storage system ( 100), and when the output amount of power delivered to the electric vehicle C is insufficient, the first DC power is additionally supplied in parallel from the above-described storage system 100 and added to the electric vehicle C side Power may be supplied.

In addition, the charging power control unit 330 can compare whether the charger and the electric vehicle (C) are connected through a sensor, and depending on whether the charger and the electric vehicle (C) are connected, whether the second DC power is transmitted to the electric vehicle (C) to be charged; It may be determined whether to charge the storage system 100 by transferring the second DC power.

For example, the charging power control unit 330 may determine whether the electric vehicle (C) enters and exits and stands by through a plurality of position sensors (not shown) installed in the electric vehicle charging system 300 .

At this time, the charging power control unit 330 may sense the electric vehicle C that has entered and exited due to the need for charging and transmit it to the charging power control unit 330, and according to the transmitted information, rapid charging and slow charging may be selected. . In addition, when slow charging is requested, it can be connected to the electric vehicle charging system 300 connected to the storage system 100 in which the accumulated power is less than 20%, and when fast charging is requested, the storage system in which the accumulated power is 70% or more ( 100) and connected to the electric vehicle charging system 300, it is possible to control the charging by connecting to the storage system 100 in a state in which the accumulated power is less than 70% and 20% or more.

Also, the charging power control unit 330 may determine a case in which the electric vehicle C is disconnected from the charger as a charging standby state. At this time, in the charging standby state, the charging power control unit 330 converts the power supplied from the power plant (F) into the second DC power through the charging power conversion unit 310 and transmits it to the storage system 100 to the storage system ( 100). That is, the charging power control unit 700 can supply power that can be supplied only with a certain output amount by contracting power with the power plant F, in a state in which the electric vehicle C is absent. It is possible to control so that power can be continuously supplied even in the charging standby state and stored in the storage system 100 .

At this time, by connecting the charging power conversion unit 310 and the storage system 100 in parallel, when the required output amount of the electric vehicle C is excessively greater than the contract power with the power plant F, the charging power conversion unit 310 By supplying the second DC power to the electric vehicle (C) and at the same time supplying the first DC power stored in the storage system 100 connected in parallel with the charging power conversion unit 310, the output required for the electric vehicle (C) can provide

For example, the electric vehicle (C) requires rapid charging and requires 100KW of output. The unit 310 converts the second DC power to supply it to the electric vehicle (C), and at the same time supplies the remaining 50KW from the storage system 100 connected in parallel with the charging power conversion unit 310 to 100KW for the electric vehicle (C). The first DC power may be supplied with an output amount of .

Through this, the charger can supply an output amount greater than the contract power to the electric vehicle (C), and by storing the continuous supply of contract power from the power plant (F) in the storage system 100, the efficiency of use of electric energy can be improved, , it is possible to supply only the power required for the output amount of power to the electric vehicle (C), thereby minimizing the surplus power, thereby improving the energy efficiency of the supplied power.

In addition, when supplying power to the electric vehicle (C), the charging power control unit 330 compares the SoC information of the storage system 100 through the comparison unit and converts the AC power supplied from the power plant F to the charging power conversion unit ( 310) can be converted into the first DC power or the second DC power and supplied to the electric vehicle (C) or the storage system 100, and whether the storage system 100 supplies power to the electric vehicle (C) can judge

In this case, the SoC information may be an energy storage state of the storage system 100 . For example, the SoC information may indicate as a percentage how much of the first DC power accumulated in the storage system 100 is stored.

For example, in the charging standby state of the electric vehicle C, the SoC information of the storage system 100 may be set to 70% or more as the first reference value. At this time, when the storage system 100 reaches the first reference value, the supply of the DC power converted by the charging power conversion unit 310 may be blocked.

Through this, it is possible to prevent a safety accident in advance by excessively storing the current in the storage system 100 .

In addition, in the charging standby state of the electric vehicle C, the SoC information of the storage system 100 may be set to 20% or less as the second reference value.

At this time, when some of the storage systems 100 installed in plurality reach the second reference value, the charging power control unit 330 receives contract power from the power plant F, and AC power from the charging power conversion unit 310 is supplied. is converted into first DC power and supplied to the storage system 100 , so that the storage system 100 can be charged, thereby preventing complete discharge of the storage system 100 , so that the storage system 100 can supply power to the storage system 100 . When supplying, it is possible to prevent abnormal supply conditions that may occur in advance.

In addition, when the electric vehicle C is in a charging state, the electric vehicle C requires an output amount of 50KW or more, which may be the first required value due to rapid charging, etc., the charging power control unit 330 is ) can be requested for power supply.

In this case, the second DC power may be supplied to the electric vehicle C using the power accumulated in the storage system 100 and the first DC power may be supplied at the same time.

Through this, it is possible to supply 50KW output amount from the charging power conversion unit 310 to the electric vehicle (C) and supply additional DC power from the storage system 100 at the same time, so that the output amount that satisfies the first required value is set to the electric vehicle ( C) can be provided.

In addition, when the SoC information of the storage system 100 in the charging state of the electric vehicle C falls to 20% or less, which may be the second reference value, the discharge for energy supply of the storage system 100 may be stopped, so that the storage Complete discharge of the system 100 can be prevented.

Through this, it is possible to prevent in advance the power supply abnormality that may occur due to the complete discharge of the storage system 100 .

In addition, the electric vehicle charging system 300 and the storage system 100 of the electric vehicle charging platform 10 according to an embodiment of the present invention may each include a power communication unit.

The power communication unit may transmit/receive the electric vehicle C and the storage system 100 to the charging power control unit 330 . Through this, the charging state of the electric vehicle C, the power state of the storage system 100, and the presence or absence of an abnormality in the device may be mutually transmitted and received.

In addition, the power communication unit transmits and receives the maximum voltage and current that the electric vehicle C can accommodate to the charging power control unit 330 , so that the electric vehicle C is supplied from the charging power conversion unit 310 and the storage system 100 . The voltage and current of the DC power may be controlled by the charging power control unit 330, and excessive voltage and current may be prevented from being supplied to the electric vehicle (C), thereby preventing failure of the electric vehicle (C). there is.

6 is a flowchart of a method for operating an electric automatic window charging platform according to an embodiment of the present invention.

5 and 6 , the method of operating an electric vehicle charging platform ( S10 ) according to an embodiment of the present invention includes a step ( S100 ) of determining whether the electric vehicle is charging or waiting for charging, when the electric vehicle is being charged, the electric vehicle The charging system 300 supplies the converted second DC power from the power plant F to the electric vehicle, but connects the first DC power supplied from the storage system in parallel with the power plant to supply the electric vehicle power. It may include a supply step (S300) and a storage step (S500) of reconverting the converted second DC power supplied from the power plant and storing the converted second DC power in a storage system when the electric vehicle is in standby for charging.

The step (S100) of determining whether the electric vehicle is charging or waiting to be charged is through a plurality of sensors installed in the above-described electric vehicle charging system 300 to detect the entrance of the vehicle, and to the connector installed in the electric vehicle charging system 300. It may be a step of determining whether the electric vehicle (C) is connected.

In addition, in the step (S100) of determining the charging or charging standby of the electric vehicle, when the electric vehicle (C) is located at a chargeable position in the electric vehicle charging system 300, the position where the electric vehicle (C) is located can be charged It is possible to detect the charging or charging standby state by sensing the distance. For example, when the electric vehicle C is located within 1M of the electric vehicle charging system 300, it is determined that the electric vehicle C is located within the distance for charging, and the charging state may be set.

Thereafter, when it is determined that the electric vehicle C is in a charging state, a power supply step S300 of supplying power to the electric vehicle may be performed.

The electric vehicle power supply step S300 may be a step of receiving AC power from the electric vehicle charging system 300 to the power plant and supplying the second DC power to the electric vehicle C.

At this time, in the electric vehicle power supply step ( S300 ), when the second DC power is supplied and the required value of the electric vehicle (C) is 50KW or more, power from the storage system 100 connected in parallel with the electric vehicle charging system 300 so that the electric vehicle supply step can be performed by receiving It may include a request step (S330) and an additional supply step (S340).

The power checking step ( S310 ) may be a step of checking the maximum voltage and current that the electric vehicle can accommodate. For example, when the electric vehicle C is being charged, the maximum acceptable power of the electric vehicle C may be determined by various factors such as the battery specifications of the electric vehicle C and the size of the electric vehicle C. At this time, when more power than can be accommodated in the electric vehicle C is supplied through the power checking step S310, generation of surplus power can be prevented. It is possible to prevent a battery failure or the like by overloading the electric vehicle (C) with power.

Thereafter, the first SoC information checking step ( S320 ), the supply request step ( S330 ), and the additional supply step ( S340 ) for checking the SoC information of the storage system 100 may be performed.

The first SoC information checking step ( S320 ) may be a step of checking a first reference value in which the amount of power accumulated in the storage system 100 is 70% or more. At this time, when the SoC information is 70% or more, the charging power control unit 330 may perform a supply request step ( S330 ) of requesting power supply to the storage system 100 .

Through this, the energy stored in the storage system 100 can be efficiently discharged, so that the storage system 100 can be continuously charged and discharged.

In addition, when the storage system 100 supplies power to the electric vehicle C by accumulating power of 70% or more, which is the first reference value, power may be supplied within a range of electric power that the electric vehicle C can accommodate.

For example, if the acceptable power of the electric vehicle (C) being charged is 50KW or less, only the second DC power supplied and converted from the power plant (F) is supplied, and the acceptable power of the electric vehicle (C) being charged is 50KW or more In this case, an additional supply step (S340) may be performed.

In the additional supply step (S340), when charging the electric vehicle (C), the first DC power of the storage system 100 is connected in parallel to the electric vehicle (C) having an acceptable amount of power of 50KW or more and additionally supplied, thereby providing power of 50KW or more This can be supplied so that rapid charging can be possible. Through this, it is possible to prevent excessive power from being supplied to the battery to the electric vehicle C, and at the same time, more than necessary power may be charged, and slow charging and rapid charging may be possible at the same time.

In the storage step (S500), the charging standby of the electric vehicle (C) is determined in the step (S100) of determining the charging or charging standby of the electric vehicle. In order to store the converted power in the storage system 100, in the second SoC information verification step (S510), when the SoC value is less than or equal to the second reference value, the electric vehicle charging system receives the converted second DC power from the power plant. It may include a requesting storage request step (S530) and a power storage step (S550) of reconverting the second DC power converted and supplied by the electric vehicle charging system to store the first DC power in the storage system.

The second SoC information checking step ( S510 ) may be a step of checking a second reference value in which the amount of power accumulated in the storage system 100 is 20% or less. At this time, when the SoC information is 20% or less, the charging power control unit 330 supplies the converted second DC power from the power plant F to the storage system 100 through the charging power conversion unit 310, A storage request step (S530) may be performed.

For example, if it is confirmed that the power accumulated in the storage system 100 is less than 20% through the second SoC information checking step S510, the second DC power supplied from the power plant F and converted is stored in the storage system 100 ) can be supplied. Through this, when the electric vehicle C is in a charging state in the storage system 100 thereafter, the first DC power may be connected in parallel to store additionally supplied power.

Also, when the first DC power is stored in the storage system 100 , the power storage step S550 may be performed. In the power storage step ( S550 ), when the second DC power is stored in the storage system 100 , the power may be reconverted to lower the power, so that the storage system 100 may be charged slowly or rapidly.

For example, when the second DC power is converted into 50KW of power and supplied, when all the electric vehicle charging systems 300 are in the charging standby state, the storage system 100 converts it into 10KW and provides multiple storage systems 100 ) can be distributed and stored. In addition, if one storage system 100 is rapidly charged, it can be charged at 50KW, and according to the user's needs, the amount of power can be adjusted to charge, so that power suitable for devices such as converters can be charged. .

In the above, the functional operation described herein and the embodiments related to the subject matter are implemented in digital electronic circuits or computer software, firmware or hardware, including the structures disclosed herein and structural equivalents thereof, or in a combination of one or more thereof. can be implemented

The present description sets forth the best mode of the invention, and provides examples to illustrate the invention, and to enable any person skilled in the art to make or use the invention. The specification thus prepared does not limit the present invention to the specific terms presented.

Accordingly, although the present invention has been described in detail with reference to the above-described examples, those skilled in the art can make modifications, changes, and modifications to the examples without departing from the scope of the present invention. In short, in order to achieve the intended effect of the present invention, it is not necessary to separately include all the functional blocks shown in the drawings or follow all the orders shown in the drawings. Note that it may fall within the scope.

Although the present invention has been described above with reference to the embodiment(s) shown in the drawings, this is only exemplary, and various modifications may be made therefrom by those skilled in the art, and the above-described embodiment It will be understood that all or part of (s) may optionally be combined. Accordingly, the true technical protection scope of the present invention should be defined by the technical spirit of the appended claims.

10: Electric vehicle charging platform
100: storage system 110: energy storage unit
130: energy conversion unit 150: energy control unit
300: electric vehicle charging system 310: charging power conversion unit
330: charging power control unit
S10: Electric vehicle charging platform operation method
S100: Step to determine the charging or charging standby state
S300: Electric vehicle power supply stage
S500: storage stage
F: Power plant C: Electric vehicle

Claims (8)

a storage system for receiving or discharging DC power;
An electric vehicle charging system that converts AC power supplied from a power plant into DC power and supplies the DC power to an electric vehicle or a storage system,
The electric vehicle charging system,
When charging the electric vehicle, the first DC power discharged from the storage system and the second DC power supplied from the power plant are connected in parallel to supply the electric vehicle at the same time,
In the electric vehicle charging system, a camera is installed in the direction in which the electric vehicle is parked and stopped, and a set range of a rectangular shape divided into a plurality of layers is formed in the field of view of the camera, and the license plate of the electric vehicle corresponds to the set range within the set range. An electric vehicle charging platform, characterized in that it determines the charging or charging standby state of the electric vehicle according to the location of the electric vehicle.
According to claim 1,
The storage system is
an energy storage unit configured to store the first DC power as preset voltage and current values; and
Converting the second DC power supplied from the charging system to charge the storage unit to generate first DC power, and converting the first DC power stored in the energy storage unit to discharge the electric vehicle charging system energy including a converter;
When the electric vehicle is charged, the DC power stored in the energy storage unit is discharged by controlling the energy conversion unit according to the request of the electric vehicle charging system,
and an energy control unit for charging by controlling the energy conversion unit to convert the second DC power supplied from the power plant and converted into the first DC power by requesting the charging system when the electric vehicle is on standby. platform.
According to claim 1,
The electric vehicle charging system,
a charging power converter for receiving AC power from the power plant and converting it into second DC power; and
supplying the DC power to the electric vehicle or the storage system;
When the electric vehicle is charged, the first DC power supplied from the storage system and the second DC power received and converted from the power plant are connected in parallel and supplied to the electric vehicle;
and a charging power control unit configured to supply the converted second DC power supplied from the power plant to the storage system when the electric vehicle is in standby mode.
delete determining whether the electric vehicle is charging or waiting to be charged;
When charging the electric vehicle, the electric vehicle charging system supplies the converted second DC power from the power plant to the electric vehicle, and connects the first DC power supplied from the storage system with the power plant in parallel to the electric vehicle Electric vehicle power supply step to supply to; and
and a storage step of reconverting the converted second DC power supplied from the power plant and storing the converted second DC power in the storage system when the electric vehicle is in standby mode,
The step of determining the charging or charging standby is,
An electric vehicle charging platform operating method comprising the step of detecting and determining the location of the electric vehicle.
delete 6. The method of claim 5,
The electric vehicle power supply step is
a checking step of checking the maximum voltage and current that the electric vehicle can accommodate;
a first SoC information checking step of checking SoC information of the storage system;
a supply request step of confirming the SoC information and requesting supply of the first DC power stored in the storage system when the SoC value is greater than or equal to a first reference value; and
and an additional supply step of supplying the first DC power supplied from the storage system and the second DC power received and converted from the power plant in parallel to the electric vehicle.
6. The method of claim 5,
The storage step is
a second SoC information checking step of checking SoC information of the storage system;
a storage request step of confirming the SoC information and requesting the electric vehicle charging system to supply the converted second DC power supplied from the power plant when the SoC value is less than or equal to a second reference value; and
and a power storage step of reconverting the second DC power converted and supplied by the electric vehicle charging system and storing the first DC power in the storage system.

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