WO2013180324A1 - Multi-functional electric vehicle charging device for dc distribution networks utilizing high capacity dc/dc converter - Google Patents

Multi-functional electric vehicle charging device for dc distribution networks utilizing high capacity dc/dc converter Download PDF

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Publication number
WO2013180324A1
WO2013180324A1 PCT/KR2012/004317 KR2012004317W WO2013180324A1 WO 2013180324 A1 WO2013180324 A1 WO 2013180324A1 KR 2012004317 W KR2012004317 W KR 2012004317W WO 2013180324 A1 WO2013180324 A1 WO 2013180324A1
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WO
WIPO (PCT)
Prior art keywords
charging
electric vehicle
module
payment
power
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PCT/KR2012/004317
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French (fr)
Korean (ko)
Inventor
정호성
박영
김형철
박찬배
김기석
Original Assignee
한국철도기술연구원
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Priority to PCT/KR2012/004317 priority Critical patent/WO2013180324A1/en
Priority to JP2015514881A priority patent/JP6019222B2/en
Publication of WO2013180324A1 publication Critical patent/WO2013180324A1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J1/00—Circuit arrangements for dc mains or dc distribution networks
    • H02J1/10—Parallel operation of dc sources
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/11—DC charging controlled by the charging station, e.g. mode 4
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14—Conductive energy transfer
    • B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30—Constructional details of charging stations
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    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
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    • B60L53/66—Data transfer between charging stations and vehicles
    • B60L53/665—Methods related to measuring, billing or payment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
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    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • B60L58/15—Preventing overcharging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00—Type of vehicles
    • B60L2200/26—Rail vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2210/00—Converter types
    • B60L2210/10—DC to DC converters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/70—Interactions with external data bases, e.g. traffic centres
    • B60L2240/72—Charging station selection relying on external data
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2270/00—Problem solutions or means not otherwise provided for
    • B60L2270/30—Preventing theft during charging
    • B60L2270/32—Preventing theft during charging of electricity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2270/00—Problem solutions or means not otherwise provided for
    • B60L2270/30—Preventing theft during charging
    • B60L2270/34—Preventing theft during charging of parts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
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    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Definitions

  • the present invention relates to an electric vehicle multifunction charging device for a DC power distribution network using a large-capacity DC-DC converter capable of charging a plurality of electric vehicles using a single DC / DC converter in a charging device of an electric vehicle. It is possible to draw the power supply line from the DC feed bus for fast charging of the electric vehicle and to charge a plurality of vehicles from one bidirectional high efficiency large capacity DC-DC converter.
  • the present invention relates to an electric vehicle multi-function charging device for a DC power distribution network that can reuse power of an EV battery connected to a charging infrastructure as system power when power is insufficient.
  • Electric vehicles need to be charged for driving. Electric charging can be divided into slow charging stands and rapid chargers.
  • the charging stand which is a slow charging method, converts 220V or 380V of AC energy supplied from a commercial AC power system into DC power using a charger mounted inside a vehicle and charges it.
  • the fast charging method uses a DC-DC converter that converts AC power into DC power in the charger itself that charges the vehicle without installing a charger inside the vehicle. It uses DC converter to output DC voltage suitable for charging power of EV battery.
  • FIG. 1 is a block diagram illustrating a power supply system for charging an electric vehicle using a conventional DC electric grid power supply network
  • FIG. 2 is a power supply system for charging an electric vehicle using a DC power supply system according to an embodiment of the present invention.
  • FIG. 1 is a block diagram illustrating a power supply system for charging an electric vehicle using a conventional DC electric grid power supply network
  • FIG. 2 is a power supply system for charging an electric vehicle using a DC power supply system according to an embodiment of the present invention.
  • power is supplied from a DC 1500 V feed bus. Since the voltage size of the DC feed bus changes from time to time depending on the power consumption of the railway vehicle, the power supply unit 10 controls the output voltage of the DC-DC converter to maintain a constant DC voltage for rapid charging Due to the output voltage control module 11 and the converter output measurement module 12 that measures the output of the DC-DC converter to measure the amount of charging power, and the temporary increase in the power supply charge, the use of power required for the operation of the railway vehicle is affected.
  • the switching module 13 controls the on-off control of the DC-DC converter and the DC-DC converter on the primary side of the DC-DC converter so as not to interfere with the operation of the railway vehicle due to an error in the abnormal or rapid charging portion of the DC-DC converter.
  • a protective equipment module 14 such as a DC high speed breaker and a protective relay.
  • the charging unit 20 receives the DC voltage power reduced for the electric vehicle from the power supply unit 10 through the DC-DC converter, and provides an interface module 21 for connecting the electric vehicle and the power system to supply the battery to the vehicle battery.
  • the battery status is continuously monitored and charging information is displayed to enable safe charging.
  • Vehicle identification to identify the unique information of the vehicle connected through the monitoring module 23 and the interface module 21 and identify the vehicle so that there is no error in using the charging system by exchanging information with the vehicle through wired / wireless communication according to the situation.
  • the payment is settled according to the fee already set based on the charging information transmitted from the module 24 and the monitoring module 23. It is configured to include a collection module 25.
  • the charging unit 20 is preferably a rapid charger, it is possible to control the charge through a large current supply compared to the general vehicle-mounted charger, and in a way to enable the battery charging in a relatively short time larger than the vehicle-mounted charger It is a charging method that supplies direct current from the device for power conversion to the battery of the vehicle in the form of a charging stand outside the vehicle because it has a power capacity and is bulky and heavy.
  • the charging information includes a power supply for rapid charging and slow charging by utilizing a DC power supply for a railroad vehicle and an AC power supply installed in the history, including the instantaneous power amount, the cumulative power amount, the charging state, the charging time, and the like supplied to the vehicle.
  • a DC power supply for a railroad vehicle and an AC power supply installed in the history, including the instantaneous power amount, the cumulative power amount, the charging state, the charging time, and the like supplied to the vehicle.
  • a remote control terminal 30 for remotely controlling the power supply unit 10 and the charging unit 20 by remotely accessing the network through a network, and monitoring and obtaining the charging information in real time.
  • the electric vehicle charging power supply system is a one-to-one electric radiation charging infrastructure that charges one electric vehicle per DC-DC converter, and as the number of electric vehicles increases, the number of DC-DC converters is added. Since it must be installed, there is a problem in terms of efficiency and cost.
  • the present invention has been made to solve the above-mentioned problems, and draws a plurality of charging connectors to stably charge a plurality of electric vehicles by receiving the power transmitted from the DC feed bus to a large capacity DC-DC converter On the contrary, if there is not enough power for the operation of the railway car, the electric vehicle can be used as the railway power through the control of the central remote management system, and a small panel is attached to each charging connector connected to the electric vehicle.
  • An object of the present invention is to provide an electric vehicle multifunction charging device for a DC power distribution network that can display charging related information.
  • the electric vehicle multi-function charging device for a DC distribution network using a large-capacity DC-DC converter
  • a voltage control unit which measures the amount of power supplied to the charging device and the amount of power consumed by the charging device, and performs stable power supply in both directions;
  • a comprehensive management control unit for determining whether to charge from a user input, monitoring and outputting charging information for each charging connector, and calculating and imposing a charge
  • One DC-DC converter capable of converting a high voltage DC power for an electric railway vehicle into a plurality of low voltage DC powers and vice versa
  • a BMS that collects battery information of the electric vehicle and prevents charging overvoltage and overcurrent
  • An output unit for outputting power amount and charging information for each charging connector in the charging device
  • a charging device including a charging unit for charging a charge according to the use of each charging connector and a charge for using the charging connector;
  • the charging connector is a wired charger communication module for receiving information for controlling the charging connector from the integrated management control unit; A charging connector control module for controlling a device in the charging connector according to a control signal transmitted from the charger communication module; A display module for outputting charging information to a user; And a payment input module for charging a charging fee.
  • each DC-DC converter and a charging unit are required for each conventional electric vehicle. It is efficient to utilize the space because the charging facility installation space is small by drawing out and using a number of charging connectors in one large capacity DC-DC converter of the system. It is possible to convert to various DC voltages required for charging, eliminating various power converters installed inside each rapid charger, and centrally converting and controlling power to operate and control power supply effectively. There is an advantage that the charging section is simplified.
  • FIG. 1 is a block diagram of a power supply system for charging an electric vehicle using a DC power feeding system according to the related art
  • FIG. 2 is a configuration diagram of a power supply system for charging an electric vehicle using a DC power feeding system according to the related art
  • FIG. 3 is a block diagram of an electric vehicle multi-function charging device using a large-capacity DC-DC converter according to an embodiment of the present invention
  • FIG. 4 is a block diagram of an electric vehicle multi-function charging device using a large-capacity DC-DC converter according to an embodiment of the present invention
  • FIG. 5 is a block diagram of a multifunction charging connector according to an embodiment of the present invention.
  • the electric vehicle multi-function charging device for DC power distribution network includes a charging device 100 and a plurality of charging connectors 170.
  • the power supply device for supplying power to the charging device 100 supplies a high voltage DC power as a power supply system of a DC electric railway for supplying power required for the operation of an electric railway vehicle under the control of a central remote management system.
  • the urban railroad power supply unit supplies 22,900V or 6,600V of electricity to each electrical room to supply power facilities for signal, lighting, air conditioning and ventilation such as stations and tunnels.
  • the power is converted to 380V or 220V, the voltage for general electrical equipment.
  • an extension distribution line capable of receiving electric power from a neighboring electrical room is configured so that power can be supplied without a power failure.
  • a power supply device draws a power supply line from a DC feed bus installed along a line and converts the power supply line into a DC voltage to supply power to an electric railway vehicle.
  • the voltage size of the DC feed bus may vary from time to time depending on the electric power consumption of the electric vehicle.
  • the charging device 100 converts the power transmitted from the power supply device into the power required for charging the electric vehicle to charge the plurality of electric vehicles to the voltage control unit 110 and the comprehensive management control unit 120 and DC- The DC converter 130, the BMS (Battery Management System) 140, the output unit 150 and the charging unit 160.
  • BMS Battery Management System
  • the power control unit 110 includes a measurement module 111 for measuring the amount of power and a signal generating module 112 for stable power supply in both directions, and a protective device for safe driving of the electric railway vehicle. Module 113.
  • the measurement module 111 is installed on the primary side of the DC-DC converter 130 to measure the amount of power supplied to the charging device 100 from a power supply for supplying high-voltage DC power on the history and the line, It is installed on the secondary side of the DC-DC converter 130 to measure the amount of power consumed by the charging device (100).
  • the signal generation module 112 receives a G2V (Grid to Vehicle) signal to allow charging when there is room to charge the electric vehicle from the amount of power measured by the measurement module 111, and conversely, the amount of power of the power supply device.
  • G2V Grid to Vehicle
  • V2G vehicle to grid
  • the protective equipment module 113 is installed on the primary side of the DC-DC converter 130 to urgently operate an electric railway vehicle, which may occur due to a temporary increase in the amount of charge or an overpower supply due to an abnormality of the charging device 130. It includes a protective equipment module 113 including a DC high-speed circuit breaker and a protection relay to control the power supply on and off to cope with the situation.
  • the integrated management controller 120 controls each module in the integrated management controller 120 according to an input module 121 for receiving a charging request for an electric vehicle from a user and a signal transmitted from the signal generation module 112.
  • An output module for transmitting only the content to be displayed on the output unit 150 of the control module 122 and the monitoring module 123 for monitoring the charging information for each charging connector and the information transmitted from the monitoring module 123 ( 124 and the charging module 125 for calculating a fee according to a preset fee based on the charging information transmitted from the monitoring module 123.
  • the control module 122 When the control module 122 receives the user's charge request from the input module 121, the control module 122 checks whether the G2V signal is transmitted from the signal generating module 112 to charge the electric vehicle from the power supply device. Perform power grid control to turn on the power transmission signal from the power supply to the DC-DC converter 130, and turn off the power transmission signal from the DC-DC converter 130 to the power supply to perform power transmission.
  • the control unit supplies power to the DC-DC converter 133. Through the charging module 170 information transmitted from the monitoring module 123 to control the current use and the power consumption is charged.
  • V2G signal when the V2G signal is received from the signal generation module 112, power is transmitted from the DC-DC converter 130 to the power supply device through a power grid control to transmit the power charged in the electric vehicle to the power supply device.
  • a signal is turned on, and a power transmission signal from the power supply device to the DC-DC converter 130 is turned off to supply power to the power supply device.
  • the power control unit 100 installed on the primary side of the DC-DC converter 130 so that the operation of the electric railway vehicle due to the abnormality of the DC-DC converter 130 or a failure in the BMS 140. Control of the protection block module 113.
  • the DC-DC converter 130 is a large-capacity DC-DC converter, the capacity of which is much larger than that of a conventional one-to-one type charging system.
  • the DC-DC converter 130 has a capacity of accommodating a plurality of vehicles and is about 500 kW based on about 10 vehicles. However, depending on the technology, the capacity may be higher.
  • the DC-DC converter 130 converts the power of the DC feed bus supplied to the railway vehicle to a low voltage level that can be charged in the battery of the electric vehicle in the charging device.
  • the BMS 140 includes an information scan module 141 that scans information on a voltage value and a current value of a battery currently being charged, a charging control module 142 that controls an actual charging voltage value and a current value, and an electric vehicle battery. And a protection and blocking module 143 capable of blocking the charging connector 170 by determining an overvoltage and an overcurrent that may occur during charging.
  • the information scan module 141 changes a high-voltage DC voltage into a low-voltage DC voltage for charging.
  • each battery used in the electric vehicle may have a different voltage value and current value according to the type thereof, and thus, if the battery does not supply the voltage and current corresponding thereto, the battery may be damaged. Accordingly, in order to solve the above problem, information about the battery is determined prior to charging.
  • the charging control module 142 controls to convert into a voltage and a current corresponding to the battery voltage and current obtained from the information scan module 141.
  • the output unit 150 includes a total output module 151 for receiving and displaying charging information according to charging from the comprehensive management controller 120 and an output module for connector 152 for displaying charging information for each connector.
  • the total output module 151 outputs the amount of power supplied from the power control unit 110, the accumulated charge amount, and the accumulated charging information to the display attached to the charging device 130.
  • the connector-specific output module 12 outputs the charging voltage, the charging current, the charging power, the charging time, the charging fee, etc. for each electric vehicle from the comprehensive management control unit 120 to the display attached to the charging device 130. , And transmits to the display module 173 attached to each charging connector 170.
  • the charging unit 160 is a payment means selection module 161 for performing a determination about the payment means transmitted from the payment input module 174 of the charging connector 170 and each charging connector 170 to the selected payment means. And a payment module 162 for paying a fee based on the billing information calculated by the control module 122.
  • the charging connector 170 receives the charger communication module 171 and the charger communication module 171 which receive information for controlling each charging connector 170 from the integrated management controller 120.
  • the charging connector control module 172 for controlling the device in the charging connector according to the control signal transmitted from the display module 173 for outputting the charging information to the user and the payment input module 174 for the charging fee payment.
  • the charger communication module 171 is in charge of a communication function for transferring information between the integrated management control unit 120 and the charging connector control module 172 in the charging connector 170. Wired through the charging connector 170 connected from the charging device 100 is common, but may use wireless communication.
  • the charging connector control module 172 performs the charging status determination transmitted from the charger communication module 171, and performs charging according to the blocking request of the charging transmitted from the protection and blocking module 143 of the BMS 170. Block it.
  • the charging and charging information transmitted from the output unit 150 is transmitted to the display module 173, and the payment method transmitted from the payment input module 174 is transmitted to the charger communication module 171.
  • the display module 173 displays the charging voltage, the charging current, the charging power, the charging time, the charging charge, the charging progress, and the like as information on the charging transmitted from the charging connector control module 172, and when charging is completed. Displays the charge for charging.
  • a display means such as a simple charge state indicator can be used to more easily check the state of charge.
  • the payment input module 174 provides a payment input means on the surface of the charging connector 170 so that the user can easily pay.
  • the payment input means receives the user payment information by accessing the card or the mobile phone by using a non-contact card payment method and transmits the payment to the charging unit 160 to the charger communication module 171 for payment.
  • the charging connector control module 172 may use the billing fee transmitted from the payment input module 174 from the payment input module 174 to perform payment.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Dc-Dc Converters (AREA)

Abstract

The present invention relates to a multi- functional electric vehicle charging device for DC distribution networks utilizing a high capacity DC/DC converter, and the multi-functional electric vehicle charging device for DC distribution networks is capable of withdrawing a plurality of charging connectors which receive power transmitted from a DC bus using a single high capacity DC-DC converter in order to stably charge a plurality of electric vehicles, and alternatively, allowing the power of the electric vehicle to be used as power for a train through the control of a central remote management system when there is a lack of power which is needed to operate the train, and displaying charging-related information by attaching small-sized panels to each of the charging connectors which are connected to the electric vehicle.

Description

대용량 직류-직류 컨버터를 활용한 직류 배전망용 전기자동차 다기능 충전장치Electric vehicle multi-function charger for DC power distribution network using large-capacity DC-DC converter
본 발명은 전기자동차의 충전 장치에 있어서 하나의 DC/DC 컨버터를 이용하여 다수의 전기차량에 충전할 수 있는 대용량 직류-직류 컨버터를 활용한 직류 배전망용 전기차 다기능 충전장치에 관한 것으로서, 보다 상세하게는 전기자동차에 급속충전이 가능하도록 직류급전모선으로부터 전력공급선을 인출하고 하나의 양방향 고효율 대용량의 직류-직류 컨버터로부터 다수의 차량에 충전할 수 있도록 제어 장치와 각 충전 커넥터의 표시장치 및 계통의 전력 부족시에 충전 인프라에 연결된 EV배터리의 전력을 계통 전력으로 다시 활용할 수 있는 직류 배전망용 전기차 다기능 충전장치에 관한 것이다.The present invention relates to an electric vehicle multifunction charging device for a DC power distribution network using a large-capacity DC-DC converter capable of charging a plurality of electric vehicles using a single DC / DC converter in a charging device of an electric vehicle. It is possible to draw the power supply line from the DC feed bus for fast charging of the electric vehicle and to charge a plurality of vehicles from one bidirectional high efficiency large capacity DC-DC converter. The present invention relates to an electric vehicle multi-function charging device for a DC power distribution network that can reuse power of an EV battery connected to a charging infrastructure as system power when power is insufficient.
일반적으로 자동차는 가솔린이나 디젤을 연료로 사용하는데, 가솔린이나 디젤은 연소시 유해한 가스를 발생하여 대기오염을 일으킬 뿐만 아니라 가솔린이나 디젤을 만드는 원유가 지구상에 얼마 남아있지 않기 때문에 각 산업분야에서 대체에너지개발을 서두르고 있으며 그 해결책으로 전기자동차의 개발이 완료되어 운행 중에 있다.In general, automobiles use gasoline or diesel as fuel. Gasoline or diesel generates harmful gases during combustion, which not only causes air pollution, but also develops alternative energy in each industry because there are few crude oils that make gasoline or diesel. As a solution, the development of electric vehicles has been completed and is in operation.
전기자동차는 운행에 필요한 전기를 충전해야 하는데 전기를 충전하는 방식에는 완속용 충전스탠드와 급속용 충전기로 구분할 수 있다.Electric vehicles need to be charged for driving. Electric charging can be divided into slow charging stands and rapid chargers.
완속 충전 방식인 충전스탠드는 상용 교류전력계통에서 공급되는 교류 220V 또는 380V의 전기에너지를 차량 내부에 탑재된 충전기를 이용하여 직류 전원으로 변환한 후 충전하는 방식이다.The charging stand, which is a slow charging method, converts 220V or 380V of AC energy supplied from a commercial AC power system into DC power using a charger mounted inside a vehicle and charges it.
이에 비해 급속 충전방식은 차량 내부에 충전기를 설치하지 않고 차량에 충전하는 충전기 자체에서 교류 전원을 직류 전원으로 바꾸는 교류-직류 컨버터를 거쳐 고압의 직류전원으로부터 전기자동차에 필요한 직류전압으로 감압하는 직류-직류 컨버터를 이용하여 충전기에서 전기자동차 축전지의 충전 전원에 맞는 직류전압을 출력하는 방식이다.In contrast, the fast charging method uses a DC-DC converter that converts AC power into DC power in the charger itself that charges the vehicle without installing a charger inside the vehicle. It uses DC converter to output DC voltage suitable for charging power of EV battery.
따라서 차량 내부에 탑재된 충전기에 비해 대전류 공급이 가능하여 짧은 시간에 축전지 충전이 가능하나 충전기 내부에 직류-직류 컨버터를 포함하고 있어 부피가 크고 중량이 무거워지는 문제점이 있다.Therefore, it is possible to charge the battery in a short time because it is possible to supply a large current compared to the charger mounted inside the vehicle, but the DC-DC converter inside the charger has a problem that the bulky and heavy weight.
이에 통상 전기자동차내 축전지 충전을 위하여 가정내의 전기를 이용하는 경우에는 완속 충전 방식에 의하나 이는 시간이 오래 걸리고 또한 한 번의 축전지 충전으로 이동할 수 있는 운행거리의 한계로 인하여 자주 축전지를 충전시켜야 한다.In the case of using the electricity in the home to charge the battery in the electric vehicle, the slow charging method, but this takes a long time and due to the limitation of the travel distance that can be moved to one battery charge, the battery must be frequently charged.
또한, 전기자동차가 일반화됨에 따라 기존의 주유소와 같은 축전지 충전소의 필요성이 많이 대두되고 있다.In addition, as electric vehicles become more common, the necessity of battery charging stations such as gas stations is increasing.
이러한 충전소의 건설에 있어 기존의 도심지에서 아파트 및 공동주택 주차장, 회사 빌딩 주차장, 공공시설 주차장 등과 같은 대규모 장소에 다수의 전기자동차를 충전하기 위해서는 전기차에 전력을 충전하기 위한 많은 양의 전력이 필요하게 된다. 이러한 전력을 얻기 위해서 추가적인 송배전선로의 구축과 전력공급을 관리, 제어하기 위한 관리 설비 및 다수의 충전소 구축을 위한 장소의 확보로 인한 고가의 설치비용으로 인하여 충전 인프라 구축 시간과 비용면에서 비효율적인 문제점이 있다.In the construction of such a charging station, in order to charge a large number of electric vehicles in a large place such as an apartment and apartment parking lot, a company building parking lot, and a public parking lot in an existing downtown, a large amount of electric power is required to charge the electric vehicle. do. In order to obtain such electric power, it is inefficient in terms of construction time and cost of charging infrastructure due to the expensive installation cost due to the construction of additional transmission and distribution lines, management facilities for managing and controlling the power supply, and securing a place for building multiple charging stations. There is this.
상기의 문제점을 해결하기 위하여 전국적으로 이미 안정적으로 설치되어 운영 중인 직류 전기철도의 급전계통으로부터 대용량의 전력을 안정적으로 공급하고, 중앙 원격감시 제어시스템에서 충전용 전력공급을 위한 시스템에 대한 보호, 제어, 감시함으로써 충전전력의 사용량을 계측할 수 있는 시스템을 제공하고자 기존 철도연에서 출연한 "직류전기 철도급전망을 이용한 전기자동차 충전용 전력 공급시스템"을 제시하였다.In order to solve the above problems, stable supply of large-capacity power from the power supply system of the DC electric railway, which is already installed and operated nationwide stably, and protection and control of the system for supplying power for charging in the central remote monitoring control system In order to provide a system that can measure the amount of charging power by monitoring, we presented the electric vehicle charging power supply system using the DC railroad network.
도 1은 종래의 직류 전기철도 급전망을 이용한 전기자동차 충전용 전력 공급시스템에 관한 전체 블록도이며, 도 2는 본 발명의 일실시예에 따른 직류 급전계통을 이용한 전기자동차 충전용 전력 공급시스템의 구성예시도로서,1 is a block diagram illustrating a power supply system for charging an electric vehicle using a conventional DC electric grid power supply network, and FIG. 2 is a power supply system for charging an electric vehicle using a DC power supply system according to an embodiment of the present invention. As a configuration example,
도 1, 2에 도시된 바와 같이 직류 1,500V 급전모선으로부터 전력을 공급받는다. 상기의 직류 급전모선에서의 전압크기는 철도차량의 전력사용량 등에 따라 수시로 변화하므로, 전력공급부(10)는 급속충전을 위한 직류 전압을 일정하게 유지하기 위해 직류-직류 컨버터의 출력전압을 제어하는 컨버터 출력전압 제어모듈(11)과 충전전력량의 계측하기 위해 직류-직류 컨버터의 출력량을 계측하는 컨버터 출력량 계측모듈(12)과 급전충전량의 일시적인 증가 등으로 인해 철도차량 운행에 요구되는 전력 사용에 영향이 발생할 경우를 대비하여 직류-직류 컨버터의 온-오프 제어하는 스위칭 모듈(13) 및 직류-직류 컨버터의 이상 또는 급속충전 부분에서의 고장으로 인해 철도차량 운행에 지장이 없도록 직류-직류 컨버터 일차측에 직류 고속도차단기 및 보호계전기 등의 보호설비모듈(14)을 포함한다.As shown in FIGS. 1 and 2, power is supplied from a DC 1500 V feed bus. Since the voltage size of the DC feed bus changes from time to time depending on the power consumption of the railway vehicle, the power supply unit 10 controls the output voltage of the DC-DC converter to maintain a constant DC voltage for rapid charging Due to the output voltage control module 11 and the converter output measurement module 12 that measures the output of the DC-DC converter to measure the amount of charging power, and the temporary increase in the power supply charge, the use of power required for the operation of the railway vehicle is affected. In case of occurrence, the switching module 13 controls the on-off control of the DC-DC converter and the DC-DC converter on the primary side of the DC-DC converter so as not to interfere with the operation of the railway vehicle due to an error in the abnormal or rapid charging portion of the DC-DC converter. And a protective equipment module 14 such as a DC high speed breaker and a protective relay.
충전부(20)는 전력공급부(10)로부터 직류-직류 컨버터를 통하여 전기자동차에 맞게 감압된 직류전압 전원을 입력받아 차량의 배터리에 공급할 수 있도록 전기자동차와 전력계통을 연계하는 인터페이스모듈(21)과 사용자로부터 요구사항에 해당하는 명령입력을 수신하는 입력모듈(22)과 인터페이스모듈(21)을 통해 연결된 차량 내 배터리 충전 시, 안전한 충전이 가능하도록 배터리 상태를 지속적으로 모니터링하고, 충전 정보를 표시하는 모니터링 모듈(23)과 상기 인터페이스모듈(21)을 통해 연결된 차량의 고유정보를 식별하고 상황에 따라 유/무선 통신을 통한 차량과의 정보교환으로 충전시스템 사용에 오류가 없도록 차량을 식별하는 차량 식별모듈(24) 및 상기 모니터링 모듈(23)로부터 전송된 충전 정보를 바탕으로 이미 설정된 요금에 따라 정산하는 과금 징수모듈(25)을 포함하여 구성된다.The charging unit 20 receives the DC voltage power reduced for the electric vehicle from the power supply unit 10 through the DC-DC converter, and provides an interface module 21 for connecting the electric vehicle and the power system to supply the battery to the vehicle battery. When charging the battery in the vehicle connected through the input module 22 and the interface module 21 that receives a command input corresponding to the requirements from the user, the battery status is continuously monitored and charging information is displayed to enable safe charging. Vehicle identification to identify the unique information of the vehicle connected through the monitoring module 23 and the interface module 21 and identify the vehicle so that there is no error in using the charging system by exchanging information with the vehicle through wired / wireless communication according to the situation. The payment is settled according to the fee already set based on the charging information transmitted from the module 24 and the monitoring module 23. It is configured to include a collection module 25.
이때, 충전부(20)는 바람직하게 급속 충전기로, 일반적인 차량 탑재형 충전기에 비해 대전류 공급을 통한 충전 제어가 가능하며, 상대적으로 짧은 시간에 배터리 충전이 가능하도록 하는 방식으로 차량 탑재형 충전기에 비해 큰 전력용량을 지니고 있어, 부피가 크고 중량이 무거워 차량 외부의 충전스탠드 형태로, 전력변환을 위한 장치로부터 직류를 차량의 배터리에 공급하는 충전방식이다At this time, the charging unit 20 is preferably a rapid charger, it is possible to control the charge through a large current supply compared to the general vehicle-mounted charger, and in a way to enable the battery charging in a relatively short time larger than the vehicle-mounted charger It is a charging method that supplies direct current from the device for power conversion to the battery of the vehicle in the form of a charging stand outside the vehicle because it has a power capacity and is bulky and heavy.
여기서, 충전 정보는 차량에 공급되는 순시 전력량, 누적 전력량, 충전 상태, 충전 시간 등을 포함하여 철도 차량용 직류전원과 역사에 설비된 전기 공급용 교류 전원을 활용하여 급전충전용 전원과 완속충전용 전원을 공급하는 시스템을 제공한다.Here, the charging information includes a power supply for rapid charging and slow charging by utilizing a DC power supply for a railroad vehicle and an AC power supply installed in the history, including the instantaneous power amount, the cumulative power amount, the charging state, the charging time, and the like supplied to the vehicle. To provide a system to supply.
그리고 상기 전력공급부(10) 및 충전부(20)를 원격지에서 네트워크를 통해 접속하여 원격 제어하고, 상기 충전 정보를 실시간 감시 및 취득하는 원격제어 단말기(30)를 포함한다.And a remote control terminal 30 for remotely controlling the power supply unit 10 and the charging unit 20 by remotely accessing the network through a network, and monitoring and obtaining the charging information in real time.
하지만 상기의 전기자동차 충전용 전력 공급시스템은 하나의 직류-직류 컨버터당 하나의 전기자동차에 충전하는 1 대 1 방신의 충전인프라로 전기자동차의 충전 대수가 증가하면 그 수만큼 직류-직류 컨버터를 추가 설치하여야 하므로 그 효율 및 비용면에 있어 문제점이 있다.However, the electric vehicle charging power supply system is a one-to-one electric radiation charging infrastructure that charges one electric vehicle per DC-DC converter, and as the number of electric vehicles increases, the number of DC-DC converters is added. Since it must be installed, there is a problem in terms of efficiency and cost.
또한 원격제어 단말기(30)에서 각 직류-직류 컨버터와 전력공급부내 모듈과 충전부를 별도로 제어하고 관리하여야 하므로 그 제어 및 관리 알고리즘이 상당히 복잡해지는 문제점이 있다.In addition, since the remote control terminal 30 must separately control and manage each DC-DC converter, a module in the power supply unit, and a charging unit, there is a problem in that the control and management algorithm becomes quite complicated.
본 발명은 전술한 문제점을 해결하기 위하여 안출된 것으로, 직류 급전모선으로부터 전송된 전력을 하나의 대용량의 직류-직류 컨버터로 공급받아 다수의 전기자동차에 안정적으로 충전하기 위하여 다수의 충전 커넥터를 인출하고 또한 반대로 철도 차량의 운행에 있어 필요한 전력이 부족할 경우에는 중앙 원격관리시스템의 제어를 통해 전기자동차의 전력을 철도전력으로 이용할 수 있도록 하며, 전기자동차에 연결되는 각 충전커넥터에 소형의 패널을 부착하여 충전관련 정보를 디스플레이할 수 있는 직류 배전망용 전기자동차 다기능 충전장치를 제공하는 것을 목적으로 한다.The present invention has been made to solve the above-mentioned problems, and draws a plurality of charging connectors to stably charge a plurality of electric vehicles by receiving the power transmitted from the DC feed bus to a large capacity DC-DC converter On the contrary, if there is not enough power for the operation of the railway car, the electric vehicle can be used as the railway power through the control of the central remote management system, and a small panel is attached to each charging connector connected to the electric vehicle. An object of the present invention is to provide an electric vehicle multifunction charging device for a DC power distribution network that can display charging related information.
상기 목적을 달성하기 위하여 대용량 직류-직류 컨버터를 활용한 직류 배전망용 전기자동차 다기능 충전장치는, In order to achieve the above object, the electric vehicle multi-function charging device for a DC distribution network using a large-capacity DC-DC converter,
충전장치에 공급되는 전력량 및 충전장치에서 소모되는 전력량을 계측하고, 양방향의 안정적인 전력공급을 수행하는 전압제어부;A voltage control unit which measures the amount of power supplied to the charging device and the amount of power consumed by the charging device, and performs stable power supply in both directions;
사용자의 입력으로부터 충전여부를 판단하고, 각 충전커넥터별 충전 정보를 모니터링하여 출력하고, 요금을 계산하여 부과하는 종합관리제어부;A comprehensive management control unit for determining whether to charge from a user input, monitoring and outputting charging information for each charging connector, and calculating and imposing a charge;
전기철도차량용 고전압 직류 전력을 복수의 저전압 직류전력으로 변환 및 그 역변환이 가능한 하나의 직류-직류 컨버터;One DC-DC converter capable of converting a high voltage DC power for an electric railway vehicle into a plurality of low voltage DC powers and vice versa;
전기자동차의 배터리 정보를 수집하고, 충전 과전압 및 과전류를 방지하는 BMS;A BMS that collects battery information of the electric vehicle and prevents charging overvoltage and overcurrent;
충전장치에서의 전력량 및 각 충전커넥터별 충전정보를 출력하는 출력부; An output unit for outputting power amount and charging information for each charging connector in the charging device;
각 충전커넥터별 사용에 따른 요금부과 및 그 사용요금을 결제하는 요금부과부를 포함하는 충전장치; 및A charging device including a charging unit for charging a charge according to the use of each charging connector and a charge for using the charging connector; And
상기 충전 장치로부터 인출된 복수의 충전 커넥터를 포함한다. And a plurality of charging connectors drawn out from the charging device.
상기 충전커넥터는 상기 종합관리제어부로부터 충전커넥터를 제어하는 정보를 수신하는 유선의 충전기통신모듈; 상기 충전기통신모듈로부터 전송된 제어신호에 의해 충전커넥터내 장치를 제어하는 충전커넥터제어모듈; 사용자에게 충전 정보를 출력하는 디스플레이모듈; 및 충전요금 결제를 위한 결제입력모듈;을 포함하는 것을 특징으로 한다.The charging connector is a wired charger communication module for receiving information for controlling the charging connector from the integrated management control unit; A charging connector control module for controlling a device in the charging connector according to a control signal transmitted from the charger communication module; A display module for outputting charging information to a user; And a payment input module for charging a charging fee.
본 발명에 따른 대용량 직류-직류 컨버터를 활용한 직류 배전망용 전기자동차 다기능 충전장치에 의하면, 다수의 전기자동차 충전 시 종래의 각 전기자동차에 대하여 각각의 직류-직류 컨버터 및 충전부가 필요하였으나 본 발명의 하나의 대용량 직류-직류 컨버터에서 다수의 충전커넥터를 인출하여 사용함으로서 충전설비 설치 공간이 적어 공간 활용에 효율적이며, 하나의 직류-직류 컨버터이므로 시설 설치상의 비용 절감이 가능해지며 각 전기자동차에서 급속충전을 위해 요구되는 다양한 직류 전압으로의 변환이 가능하여 각각의 급속충전기 내부에 설치되는 각종 전력변환장치 부분을 없애고 중앙에서 집중으로 전력을 변환, 제어할 수 있어 전력공급의 운영 및 제어가 효과적이며, 충전부가 단순해지는 장점이 있다.According to the electric vehicle multi-function charging device for a DC power distribution network using a large-capacity DC-DC converter according to the present invention, when charging a plurality of electric vehicles, each DC-DC converter and a charging unit are required for each conventional electric vehicle. It is efficient to utilize the space because the charging facility installation space is small by drawing out and using a number of charging connectors in one large capacity DC-DC converter of the system. It is possible to convert to various DC voltages required for charging, eliminating various power converters installed inside each rapid charger, and centrally converting and controlling power to operate and control power supply effectively. There is an advantage that the charging section is simplified.
또한 전압제어부를 통해 철도 차량의 전력이 부족할 경우에는 충전인프라에 연결된 전기자동차에 충전된 전력으로부터 전력을 공급받을 수 있어 철도차량 전력의 피크 조절이 용이하며, 중앙 원격관리시스템에서 종합적으로 모니터링 및 제어가 가능하다는 장점이 있다.In addition, when the power of the railway vehicle is insufficient through the voltage control unit, power can be supplied from the electric power charged to the electric vehicle connected to the charging infrastructure, so that it is easy to adjust the peak of the railway vehicle power. There is an advantage that it is possible.
도 1은 종래 발명에 따른 직류 급전계통을 이용한 전기자동차 충전용 전력 공급시스템에 관한 블럭도,1 is a block diagram of a power supply system for charging an electric vehicle using a DC power feeding system according to the related art;
도 2는 종래 발명에 따른 직류 급전계통을 이용한 전기자동차 충전용 전력 공급시스템의 구성도,2 is a configuration diagram of a power supply system for charging an electric vehicle using a DC power feeding system according to the related art;
도 3은 본 발명의 실시예에 따른 대용량 직류-직류 컨버터를 이용한 전기자동차 다기능 충전장치에 관한 구성도,3 is a block diagram of an electric vehicle multi-function charging device using a large-capacity DC-DC converter according to an embodiment of the present invention,
도 4는 본 발명의 실시예에 따른 대용량 직류-직류 컨버터를 이용한 전기자동차 다기능 충전장치의 블럭도,4 is a block diagram of an electric vehicle multi-function charging device using a large-capacity DC-DC converter according to an embodiment of the present invention,
도 5는 본 발명의 실시예에 따른 다기능 충전 컨넥터의 블록도,5 is a block diagram of a multifunction charging connector according to an embodiment of the present invention;
도 6은 본 발명의 실시예에 따른 다기능 충전커넥터의 사용예시도6 is an illustration of the use of the multi-function charging connector according to an embodiment of the present invention
도 7은 본 발명의 실시예에 따른 충전정보 디스플레이의 사용예시도.7 is an exemplary use of the charging information display according to an embodiment of the present invention.
이하, 예시도면을 참조하여 본 발명에 따른 대용량 직류-직류 컨버터를 활용한 직류 배전망용 전기자동차 다기능 충전장치의 일실시예에 대한 구성 및 작용을 상세하게 설명한다.Hereinafter, with reference to the exemplary drawings will be described in detail the configuration and operation of the embodiment of the electric vehicle multi-function charging device for DC power distribution network using a large-capacity DC-DC converter according to the present invention.
본 발명의 일실시예에 따른 직류 배전망용 전기자동차 다기능 충전장치는 도 3에 도시된 바와 같이, 충전장치(100)와 복수의 충전커넥터(170)로 구성된다.As shown in FIG. 3, the electric vehicle multi-function charging device for DC power distribution network according to an embodiment of the present invention includes a charging device 100 and a plurality of charging connectors 170.
상기 충전장치(100)에 전력을 공급하는 전력공급장치는 중앙원격관리시스템의 제어에 따라 전기철도차량 운행에 필요한 전력을 공급하는 직류 전기철도의 급전계통으로서 고압의 직류전력을 공급한다.The power supply device for supplying power to the charging device 100 supplies a high voltage DC power as a power supply system of a DC electric railway for supplying power required for the operation of an electric railway vehicle under the control of a central remote management system.
도심에 운행되고 있는 도시철도의 전력공급장치는 역사 및 터널 등의 신호, 조명, 냉난방 및 환기 등을 위한 전력설비에 전력을 공급하기 위해 22,900V 또는 6,600V의 전력을 각 전기실에 전력을 공급하고 전기실에서 일반전기 설비용 전압인 380V 또는 220V로 변환하여 전력을 공급하고 있다. 또한 해당 전기실에 전력 공급이 중단되는 것을 대비하여 인근 전기실로부터 전력을 공급받을 수 있는 연장배전선로가 구성되어 있어 정전없이 전력을 공급받을 수 있다.The urban railroad power supply unit supplies 22,900V or 6,600V of electricity to each electrical room to supply power facilities for signal, lighting, air conditioning and ventilation such as stations and tunnels. In the electrical room, the power is converted to 380V or 220V, the voltage for general electrical equipment. In addition, in case the power supply to the corresponding electrical room is stopped, an extension distribution line capable of receiving electric power from a neighboring electrical room is configured so that power can be supplied without a power failure.
일반적으로 전력공급장치는 선로를 따라 설치된 직류 급전모선에서 전력공급선을 인출하여 직류전압으로 변환하여 전기철도차량에 전력을 공급한다. 여기서, 직류 급전모선의 전압크기는 전동차 전력사용량 등에 따라 수시로 변화할 수 있다.In general, a power supply device draws a power supply line from a DC feed bus installed along a line and converts the power supply line into a DC voltage to supply power to an electric railway vehicle. Here, the voltage size of the DC feed bus may vary from time to time depending on the electric power consumption of the electric vehicle.
상기 충전장치(100)는 상기 전력공급장치로부터 전송된 전력을 전기자동차의 충전에 필요한 전력으로 변환하여 다수의 전기자동차에 충전할 수 있도록 전압제어부(110)와 종합관리제어부(120)와 직류-직류 컨버터(130)와 BMS(Battery Management System, 140)와 출력부(150) 및 요금부과부(160)로 구성된다.The charging device 100 converts the power transmitted from the power supply device into the power required for charging the electric vehicle to charge the plurality of electric vehicles to the voltage control unit 110 and the comprehensive management control unit 120 and DC- The DC converter 130, the BMS (Battery Management System) 140, the output unit 150 and the charging unit 160.
도 4에 도시된바와 같이, 상기 전력제어부(110)는 전력량을 계측하기 위한 계측모듈(111)과 양방향의 안정적인 전력공급을 위한 신호발생모듈(112)과 전기철도차량의 안전 운행을 위한 보호설비모듈(113)을 포함한다.As shown in FIG. 4, the power control unit 110 includes a measurement module 111 for measuring the amount of power and a signal generating module 112 for stable power supply in both directions, and a protective device for safe driving of the electric railway vehicle. Module 113.
상기 계측모듈(111)은 상기 직류-직류 컨버터(130)의 1차측에 설치되어 역사 및 선로상의 고압의 직류전원을 공급하는 전력공급장치로부터 상기 충전장치(100)로 공급되는 전력량을 측정하고, 상기 직류-직류 컨버터(130)의 2차측에 설치되어 상기 충전장치(100)에서 소모되는 전력량을 측정한다.The measurement module 111 is installed on the primary side of the DC-DC converter 130 to measure the amount of power supplied to the charging device 100 from a power supply for supplying high-voltage DC power on the history and the line, It is installed on the secondary side of the DC-DC converter 130 to measure the amount of power consumed by the charging device (100).
상기 신호발생모듈(112)은 상기 계측모듈(111)로부터 계측된 전력량으로부터 전기자동차에 대하여 충전할 수 있는 여유가 있을 때는 충전을 허용하는 G2V(Grid to Vehicle)신호를, 반대로 전력공급장치의 전력량에 있어 여유가 없을 때는 V2G(Vehicle to Grid) 신호를 발생하여 충전장치를 관리하는 상기 종합관리제어시스템(132)에 전송한다.The signal generation module 112 receives a G2V (Grid to Vehicle) signal to allow charging when there is room to charge the electric vehicle from the amount of power measured by the measurement module 111, and conversely, the amount of power of the power supply device. When there is no room in the air, a vehicle to grid (V2G) signal is generated and transmitted to the integrated management control system 132 managing the charging device.
상기 보호설비모듈(113)은 상기 직류-직류 컨버터(130) 1차측에 설치되어 충전량의 일시적인 증가나 상기 충전장치(130)의 이상으로 인한 과전력공급으로 발생할 수 있는 전기철도차량의 운행의 긴급한 상황에 대처하도록 전력공급을 온오프 제어하는 직류 고속도차단기 및 보호계전기를 포함하는 보호설비모듈(113)을 포함한다.The protective equipment module 113 is installed on the primary side of the DC-DC converter 130 to urgently operate an electric railway vehicle, which may occur due to a temporary increase in the amount of charge or an overpower supply due to an abnormality of the charging device 130. It includes a protective equipment module 113 including a DC high-speed circuit breaker and a protection relay to control the power supply on and off to cope with the situation.
상기 종합관리제어부(120)는 사용자로부터 전기자동차에 대한 충전요구를 수신하는 입력모듈(121)과 상기 신호발생모듈(112)로부터 전송된 신호에 따라 상기 종합관리제어부(120)내 각 모듈을 제어하는 제어모듈(122)과 상기 각 충전커넥터별 충전 정보를 모니터링하는 모니터링모듈(123)과 상기 모니터링모듈(123)로부터 전송된 정보를 상기 출력부(150)에 표시할 내용만을 전송하는 출력모듈(124)과 상기 모니터링모듈(123)로부터 전송된 충전정보를 바탕으로 기 설정된 요금에 따라 요금을 계산하는 과금징수모듈(125)을 포함한다.The integrated management controller 120 controls each module in the integrated management controller 120 according to an input module 121 for receiving a charging request for an electric vehicle from a user and a signal transmitted from the signal generation module 112. An output module for transmitting only the content to be displayed on the output unit 150 of the control module 122 and the monitoring module 123 for monitoring the charging information for each charging connector and the information transmitted from the monitoring module 123 ( 124 and the charging module 125 for calculating a fee according to a preset fee based on the charging information transmitted from the monitoring module 123.
상기 제어모듈(122)은 상기 입력모듈(121)로부터 사용자의 충전요구가 수신되면, 상기 신호발생모듈(112)로부터 G2V 신호가 전송되었는지 확인하여 전력공급장치로부터 전기자동차에 전기를 충전할 수 있도록 전력망 제어를 수행하여 상기 전력공급장치에서 상기 직류-직류 컨버터(130)로의 전력 전송 신호를 온하고, 상기 직류-직류 컨버터(130)에서 상기 전력공급장치로의 전력 전송 신호를 오프하여 전력 전송을 제어하여 상기 직류-직류 컨버터(133)에 전력을 공급한다. 상기 모니터링모듈(123)로부터 전송된 각 충전커넥터별(170)정보를 통하여 현재 사용여부 및 충전되는 전력사용량을 제어한다.When the control module 122 receives the user's charge request from the input module 121, the control module 122 checks whether the G2V signal is transmitted from the signal generating module 112 to charge the electric vehicle from the power supply device. Perform power grid control to turn on the power transmission signal from the power supply to the DC-DC converter 130, and turn off the power transmission signal from the DC-DC converter 130 to the power supply to perform power transmission. The control unit supplies power to the DC-DC converter 133. Through the charging module 170 information transmitted from the monitoring module 123 to control the current use and the power consumption is charged.
그리고 충전중에는 상기 모니터링 모듈(123)로부터 전송된 정보를 상기 출력모듈(124)에 전송하고, 충전이 완료된 경우 상기 과금징수모듈(125)를 구동시킨다.In addition, during charging, information transmitted from the monitoring module 123 is transmitted to the output module 124, and when charging is completed, the charging module 125 is driven.
반대로 상기 신호발생모듈(112)로부터 V2G 신호가 수신되면 전기자동차에 충전되어 있는 전력을 상기 전력공급장치로 전송할 수 있도록 전력망 제어를 통하여 상기 직류-직류 컨버터(130)에서 전력공급장치로의 전력 전송 신호를 온하고, 상기 전력공급장치에서 상기 직류-직류 컨버터(130)로의 전력 전송 신호를 오프하여 상기 전력공급장치에 전력을 공급한다.On the contrary, when the V2G signal is received from the signal generation module 112, power is transmitted from the DC-DC converter 130 to the power supply device through a power grid control to transmit the power charged in the electric vehicle to the power supply device. A signal is turned on, and a power transmission signal from the power supply device to the DC-DC converter 130 is turned off to supply power to the power supply device.
또한 상기 직류-직류 컨버터(130)의 이상이나 상기 BMS(140)에서의 고장으로 인해 전기철도차량의 운행에 지장이 없도록 상기 직류-직류 컨버터(130) 1차 측에 설치된 상기 전력제어부(100)의 보호차단모듈(113)을 제어한다.In addition, the power control unit 100 installed on the primary side of the DC-DC converter 130 so that the operation of the electric railway vehicle due to the abnormality of the DC-DC converter 130 or a failure in the BMS 140. Control of the protection block module 113.
상기 직류-직류 컨버터(130)는 대용량 직류-직류 컨버터로서, 용량은 종래 일대일 형태의 충전시스템보다 훨씬 큰 것으로 복수의 차량을 수용할 수 있는 용량으로 통상 10대 정도의 차량을 기준으로 500kW 정도이며, 기술 여부에 따라 그 이상의 용량이 될 수도 있다. 상기 직류-직류 컨버터(130)는 철도차량에 공급되는 직류급전모선의 전력을 충전장치에서 전기자동차의 배터리에 충전이 가능한 저압의 전압레벨로 변환하여 준다.The DC-DC converter 130 is a large-capacity DC-DC converter, the capacity of which is much larger than that of a conventional one-to-one type charging system. The DC-DC converter 130 has a capacity of accommodating a plurality of vehicles and is about 500 kW based on about 10 vehicles. However, depending on the technology, the capacity may be higher. The DC-DC converter 130 converts the power of the DC feed bus supplied to the railway vehicle to a low voltage level that can be charged in the battery of the electric vehicle in the charging device.
상기 BMS(140)는 현재 충전중인 배터리의 전압값과 전류값에 관한 정보를 스캔하는 정보스캔모듈(141)와 실제 충전하는 전압값과 전류값을 제어하는 충전제어모듈(142)과 전기자동차 배터리 충전 중에 발생할 수 있는 과전압 및 과전류를 판단하여 상기 충전커넥터(170)를 차단할 수 있는 보호 및 차단 모듈(143)을 포함한다.The BMS 140 includes an information scan module 141 that scans information on a voltage value and a current value of a battery currently being charged, a charging control module 142 that controls an actual charging voltage value and a current value, and an electric vehicle battery. And a protection and blocking module 143 capable of blocking the charging connector 170 by determining an overvoltage and an overcurrent that may occur during charging.
상기 정보스캔모듈(141)은 상기 직류-직류 컨버터(130)에서는 고압의 직류전압을 충전을 위한 저압의 직류전압으로 변경한다. 하지만 전기자동차에서 사용하고 있는 각 배터리들은 그 종류에 따라 전압값과 전류값이 다를 수 있어, 이에 부합하는 전압 및 전류를 공급하지 않으면 배터리가 손상되는 문제가 발생한다. 따라서 상기의 문제를 해결하기 위하여 충전에 앞서 배터리에 대한 정보를 파악한다.In the DC-DC converter 130, the information scan module 141 changes a high-voltage DC voltage into a low-voltage DC voltage for charging. However, each battery used in the electric vehicle may have a different voltage value and current value according to the type thereof, and thus, if the battery does not supply the voltage and current corresponding thereto, the battery may be damaged. Accordingly, in order to solve the above problem, information about the battery is determined prior to charging.
상기 충전제어모듈(142)은 상기 정보스캔모듈(141)로부터 얻은 상기 배터리 전압 및 전류에 부합하는 전압 및 전류로 변환하도록 제어한다.The charging control module 142 controls to convert into a voltage and a current corresponding to the battery voltage and current obtained from the information scan module 141.
상기 출력부(150)는 상기 종합관리제어부(120)로부터 충전에 따른 충전정보를 받아 표시하는 전체출력모듈(151)과 각 커넥터별 충전정보를 표시하는 커넥터별출력모듈(152)을 포함한다.The output unit 150 includes a total output module 151 for receiving and displaying charging information according to charging from the comprehensive management controller 120 and an output module for connector 152 for displaying charging information for each connector.
상기 전체출력모듈(151)은 상기 전력제어부(110)로부터 공급되는 전력량과 누적된 충전량 및 누적된 과금정보 등을 상기 충전장치(130)에 부착된 디스플레이에 출력한다.The total output module 151 outputs the amount of power supplied from the power control unit 110, the accumulated charge amount, and the accumulated charging information to the display attached to the charging device 130.
상기 커넥터별출력모듈(12)은 상기 종합관리제어부(120)로부터 각 전기자동차별 충전전압과 충전전류와 충전전력과 충전시간 및 과금요금 등을 상기 충전장치(130)에 부착된 디스플레이에 출력하고, 각 충전커넥터(170)에 부착된 디스플레이모듈(173)에 전송한다.The connector-specific output module 12 outputs the charging voltage, the charging current, the charging power, the charging time, the charging fee, etc. for each electric vehicle from the comprehensive management control unit 120 to the display attached to the charging device 130. , And transmits to the display module 173 attached to each charging connector 170.
상기 요금부과부(160)는 상기 충전커넥터(170)의 결제입력모듈(174)로부터 전송된 결제수단에 관한 판단을 수행하는 결제수단선택모듈(161)과 상기 선택된 결제수단으로 각 충전커넥터(170)별로 구분하여 상기 제어모듈(122)에서 연산된 과금정보에 따른 사용요금을 결제하는 결제모듈(162)을 포함한다.The charging unit 160 is a payment means selection module 161 for performing a determination about the payment means transmitted from the payment input module 174 of the charging connector 170 and each charging connector 170 to the selected payment means. And a payment module 162 for paying a fee based on the billing information calculated by the control module 122.
또한 상기 충전장치(100)의 일측면에 결제입력모듈을 포함하여 결제하는 것도 바람직하다.It is also preferable to include a payment input module on one side of the charging device 100 to make a payment.
도 5에 도시된 바와 같이, 상기 충전커넥터(170)는 상기 종합관리제어부(120)로부터 각 충전커넥터(170)를 제어하는 정보를 수신하는 충전기통신모듈(171)과 상기 충전기통신모듈(171)로부터 전송된 제어신호에 의해 충전커넥터내 장치를 제어하는 충전커넥터제어모듈(172)과 사용자에게 충전 정보를 출력하는 디스플레이모듈(173)와 충전요금 결제를 위한 결제입력모듈(174)로 구성된다.As shown in FIG. 5, the charging connector 170 receives the charger communication module 171 and the charger communication module 171 which receive information for controlling each charging connector 170 from the integrated management controller 120. The charging connector control module 172 for controlling the device in the charging connector according to the control signal transmitted from the display module 173 for outputting the charging information to the user and the payment input module 174 for the charging fee payment.
상기 충전기통신모듈(171)은 상기 종합관리제어부(120)와 상기 충전커넥터(170)내 충전커넥터제어모듈(172)간의 정보를 전달하는 통신기능을 담당한다. 상기 충전장치(100)로부터 연결된 충전커넥터(170)를 통하여 유선인 경우가 통상적이나, 무선통신을 이용할 수 있다.The charger communication module 171 is in charge of a communication function for transferring information between the integrated management control unit 120 and the charging connector control module 172 in the charging connector 170. Wired through the charging connector 170 connected from the charging device 100 is common, but may use wireless communication.
상기 충전커넥터제어모듈(172)은 상기 충전기통신모듈(171)으로부터 전송된 충전여부판단을 수행하고, 상기 BMS(170)의 보호 및 차단 모듈(143)로부터 전송된 충전의 차단요구에 따른 충전을 차단한다.The charging connector control module 172 performs the charging status determination transmitted from the charger communication module 171, and performs charging according to the blocking request of the charging transmitted from the protection and blocking module 143 of the BMS 170. Block it.
그리고 상기 출력부(150)로부터 전송된 충전 및 과금 정보를 상기 디스플레이모듈(173)에 전송하며, 상기 결제입력모듈(174)로부터 전송된 결제방법을 상기 충전기통신모듈(171)에 전송한다.Then, the charging and charging information transmitted from the output unit 150 is transmitted to the display module 173, and the payment method transmitted from the payment input module 174 is transmitted to the charger communication module 171.
상기 디스플레이모듈(173)는 상기 충전커넥터제어모듈(172)으로부터 전송된 충전에 관한 정보로서 충전전압, 충전전류, 충전전력, 충전시간, 과금요금 및 충전 진행 사항 등을 표시하고, 충전이 완료된 경우 충전에 따른 요금을 표시한다.The display module 173 displays the charging voltage, the charging current, the charging power, the charging time, the charging charge, the charging progress, and the like as information on the charging transmitted from the charging connector control module 172, and when charging is completed. Displays the charge for charging.
그리고 충전상태를 보다 용이하게 확인할 수 있도록 간단한 충전상태표시등과 같은 표시수단을 이용할 수 있다.And a display means such as a simple charge state indicator can be used to more easily check the state of charge.
상기 결제입력모듈(174)은 사용자에게 보다 용이하게 결제할 수 있도록 상기 충전커넥터(170)의 표면에 결제입력수단을 제공한다. 상기 결제입력수단은 비접촉카드결제방식을 이용하여 카드나 핸드폰을 접근하여 사용자 결제정보를 입력받아 상기 충전기통신모듈(171)로 상기 요금부과부(160)에 전송하여 결제한다.The payment input module 174 provides a payment input means on the surface of the charging connector 170 so that the user can easily pay. The payment input means receives the user payment information by accessing the card or the mobile phone by using a non-contact card payment method and transmits the payment to the charging unit 160 to the charger communication module 171 for payment.
상기 충전커넥터제어모듈(172)은 상기 결제입력모듈(174)로부터 상기 요금부과부(160)로부터 전송된 과금요금을 이용하여 결제를 수행하는 것도 바람직하다.The charging connector control module 172 may use the billing fee transmitted from the payment input module 174 from the payment input module 174 to perform payment.
본 명세서에는 본 발명에 따른 대용량 직류-직류 컨버터를 활용한 직류 배전망용 전기자동차 다기능 충전장치의 바람직한 실시예를 설명하였으나, 본 발명이 이에 한정되는 것은 아니다. 본 발명은 특허청구범위 및 첨부도면의 범위 내에서 다양하게 변형되어 실시될 수 있으며, 이것 또한 본 발명의 권리범위에 속한다.In the present specification, a preferred embodiment of an electric vehicle multi-function charging device for a DC power distribution network using a large-capacity DC-DC converter according to the present invention has been described, but the present invention is not limited thereto. The invention may be practiced in various ways within the scope of the claims and the accompanying drawings, which also belong to the scope of the invention.
부호의 설명Explanation of the sign
100 충전장치 110 전압제어부100 Charging Unit 110 Voltage Control Unit
111 계측모듈 112 신호발생모듈111 Measuring module 112 Signal generating module
113 보호설비모듈 120 종합관리제어부113 Protective Equipment Module 120 Integrated Management and Control Unit
121 입력모듈 122 제어모듈121 Input Module 122 Control Module
123 모니터링모듈 124 출력모듈123 Monitoring module 124 Output module
125 과금징수모듈 130 직류-직류 컨버터125 Charging module 130 DC-DC converter
140 BMS 141 정보스캔모듈140 BMS 141 Information Scan Module
142 충전제어모듈 143 보호 및 차단 모듈142 Charging Control Module 143 Protection and Shutdown Module
150 출력부 151 전체출력모듈150 Outputs 151 All Output Modules
152 커넥터별출력모듈 160 요금부과부152 Output Module by Connector 160 Charge
161 결제수단선택모듈 162 결제모듈161 Payment method selection module 162 Payment module
170 충전커넥터 171 충전기통신모듈170 Charging Connector 171 Charger Communication Module
172 충전커넥터제어모듈 173 디스플레이모듈172 Charging Connector Control Module 173 Display Module
174 결제입력모듈174 payment input module

Claims (15)

  1. 전기자동차 다기능 충전장치에 있어서, In the electric vehicle multifunction charging device,
    충전장치에 공급되는 전력량 및 충전장치에서 소모되는 전력량을 계측하고, 양방향의 안정적인 전력공급을 수행하는 전압제어부;A voltage control unit which measures the amount of power supplied to the charging device and the amount of power consumed by the charging device, and performs stable power supply in both directions;
    사용자의 입력으로부터 충전여부를 판단하고, 각 충전커넥터별 충전 정보를 모니터링하여 출력하고, 요금을 계산하여 부과하는 종합관리제어부;A comprehensive management control unit for determining whether to charge from a user input, monitoring and outputting charging information for each charging connector, and calculating and imposing a charge;
    전기철도차량용 고전압 직류 전력을 복수의 저전압 직류전력으로 변환 및 그 역변환이 가능한 하나의 직류-직류 컨버터;One DC-DC converter capable of converting a high voltage DC power for an electric railway vehicle into a plurality of low voltage DC powers and vice versa;
    전기자동차의 배터리 정보를 수집하고, 충전 과전압 및 과전류를 방지하는 BMS;A BMS that collects battery information of the electric vehicle and prevents charging overvoltage and overcurrent;
    충전장치에서의 전력량 및 각 충전커넥터별 충전정보를 출력하는 출력부; An output unit for outputting power amount and charging information for each charging connector in the charging device;
    각 충전커넥터별 사용에 따른 요금부과 및 그 사용요금을 결제하는 요금부과부를 포함하는 충전장치; 및A charging device including a charging unit for charging a charge according to the use of each charging connector and a charge for using the charging connector; And
    상기 충전장치로부터 인출된 복수의 충전커넥터를 포함하는 것을 특징으로 하는 전기자동차 다기능 충전장치.An electric vehicle multifunction charging apparatus comprising a plurality of charging connectors withdrawn from the charging device.
  2. 제 1 항에 있어서, 상기 충전커넥터는 The method of claim 1, wherein the charging connector is
    상기 종합관리제어부로부터 충전커넥터를 제어하는 정보를 수신하는 유선의 충전기통신모듈;A wired charger communication module for receiving information for controlling a charging connector from the comprehensive management control unit;
    기 충전기통신모듈로부터 전송된 제어신호에 의해 충전커넥터내 장치를 제어하는 충전커넥터제어모듈; 및A charging connector control module for controlling a device in the charging connector by a control signal transmitted from the charger communication module; And
    사용자에게 충전 정보를 출력하는 디스플레이모듈; 및 A display module for outputting charging information to a user; And
    충전요금 결제를 위한 결제입력모듈을 포함하는 것을 특징으로 하는 전기자동차 다기능 충전장치.Electric vehicle multi-function charging device comprising a payment input module for charging the charge.
  3. 제 1 항 또는 제 2 항에 있어서, 상기 전압제어부는 전기철도차량의 안전운행을 직류 고속도차단기와 보호계전기 그리고 충전장치에서 전력공급장치로 전력공급을 수행하도록 하는 신호발생모듈을 포함하는 것을 특징으로 하는 전기자동차 다기능 충전장치.According to claim 1 or claim 2, wherein the voltage control unit comprises a signal generating module for performing a power supply from the DC high-speed circuit breaker, the protective relay and the charging device to the power supply device for safe operation of the electric railway vehicle. Electric vehicle multifunction charging device.
  4. 제 1 항 또는 제 2 항에 있어서, 상기 요금부과부는 상기 충전장치의 일측면에 결제입력모듈을 포함하여 결제하는 것을 특징으로 하는 전기자동차 다기능 충전장치.The electric vehicle multifunction charging apparatus according to claim 1 or 2, wherein the charging unit includes a payment input module on one side of the charging device.
  5. 제 3 항에 있어서, 상기 요금부과부는 상기 충전장치의 일측면에 결제입력모듈을 포함하여 결제하는 것을 특징으로 하는 전기자동차 다기능 충전장치.The electric vehicle multifunction charging apparatus according to claim 3, wherein the charging unit includes a payment input module on one side of the charging device to make a payment.
  6. 제 2 항 또는 제 3 항에 있어서, 상기 충전기통신모듈은 무선통신으로 수행하는 것을 특징으로 하는 전기자동차 다기능 충전장치.According to claim 2 or 3, wherein the charger communication module electric vehicle multifunction charging apparatus, characterized in that performed by wireless communication.
  7. 제 4 항에 있어서, 상기 충전기통신모듈은 무선통신으로 수행하는 것을 특징으로 하는 전기자동차 다기능 충전장치.The electric vehicle multifunction charging apparatus according to claim 4, wherein the charger communication module performs wireless communication.
  8. 제 5 항에 있어서, 상기 충전기통신모듈은 무선통신으로 수행하는 것을 특징으로 하는 전기자동차 다기능 충전장치.The electric vehicle multifunction charging apparatus according to claim 5, wherein the charger communication module performs wireless communication.
  9. 제 2 항에 있어서, 상기 충전커넥터제어모듈은 상기 결제입력모듈로부터 상기 요금부과부로부터 전송된 과금요금을 이용하여 결제를 수행하는 것을 특징으로 하는 전기자동차 다기능 충전장치.The multi-function electric vehicle charging device according to claim 2, wherein the charging connector control module performs the payment by using the charging fee transmitted from the payment input module from the payment input module.
  10. 제 3 항에 있어서, 상기 충전커넥터제어모듈은 상기 결제입력모듈로부터 상기 요금부과부로부터 전송된 과금요금을 이용하여 결제를 수행하는 것을 특징으로 하는 전기자동차 다기능 충전장치.The multi-function electric vehicle charging device according to claim 3, wherein the charging connector control module performs the payment using the charging fee transmitted from the payment input module from the payment input module.
  11. 제 4 항에 있어서, 상기 충전커넥터제어모듈은 상기 결제입력모듈로부터 상기 요금부과부로부터 전송된 과금요금을 이용하여 결제를 수행하는 것을 특징으로 하는 전기자동차 다기능 충전장치.The electric vehicle multifunction charging apparatus according to claim 4, wherein the charging connector control module performs the payment using the charging fee transmitted from the payment input module from the payment input module.
  12. 제 5 항에 있어서, 상기 충전커넥터제어모듈은 상기 결제입력모듈로부터 상기 요금부과부로부터 전송된 과금요금을 이용하여 결제를 수행하는 것을 특징으로 하는 전기자동차 다기능 충전장치.The electric vehicle multifunction charging apparatus according to claim 5, wherein the charging connector control module performs the payment using the charging fee transmitted from the payment input module from the payment input module.
  13. 제 6 항에 있어서, 상기 충전커넥터제어모듈은 상기 결제입력모듈로부터 상기 요금부과부로부터 전송된 과금요금을 이용하여 결제를 수행하는 것을 특징으로 하는 전기자동차 다기능 충전장치.7. The electric vehicle multifunction charging apparatus according to claim 6, wherein the charging connector control module performs the payment using the charging fee transmitted from the payment input module from the payment input module.
  14. 제 7 항에 있어서, 상기 충전커넥터제어모듈은 상기 결제입력모듈로부터 상기 요금부과부로부터 전송된 과금요금을 이용하여 결제를 수행하는 것을 특징으로 하는 전기자동차 다기능 충전장치.8. The electric vehicle multifunction charging apparatus according to claim 7, wherein the charging connector control module performs the payment using the charging fee transmitted from the payment input module from the payment input module.
  15. 제 8 항에 있어서, 상기 충전커넥터제어모듈은 상기 결제입력모듈로부터 상기 요금부과부로부터 전송된 과금요금을 이용하여 결제를 수행하는 것을 특징으로 하는 전기자동차 다기능 충전장치.The electric vehicle multifunction charging apparatus according to claim 8, wherein the charging connector control module performs the payment using the charging fee transmitted from the payment input module from the payment input module.
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