WO2023038297A1 - 전력공급 차단시 배터리팩 운용방식의 배터리 교체 스테이션 - Google Patents
전력공급 차단시 배터리팩 운용방식의 배터리 교체 스테이션 Download PDFInfo
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- WO2023038297A1 WO2023038297A1 PCT/KR2022/011376 KR2022011376W WO2023038297A1 WO 2023038297 A1 WO2023038297 A1 WO 2023038297A1 KR 2022011376 W KR2022011376 W KR 2022011376W WO 2023038297 A1 WO2023038297 A1 WO 2023038297A1
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- Prior art keywords
- battery
- power
- converter
- battery pack
- replacement station
- Prior art date
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- 238000004891 communication Methods 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 17
- 238000011017 operating method Methods 0.000 claims description 12
- 230000002457 bidirectional effect Effects 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 6
- 230000002159 abnormal effect Effects 0.000 claims description 4
- 238000010248 power generation Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000007599 discharging Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000004146 energy storage Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
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- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Classifications
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
- H02J7/00036—Charger exchanging data with battery
-
- 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
- B60L53/20—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 converters located in the vehicle
- B60L53/24—Using the vehicle's propulsion converter for charging
-
- 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
- B60L53/50—Charging stations characterised by energy-storage or power-generation means
- B60L53/53—Batteries
-
- 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
- B60L53/60—Monitoring or controlling charging stations
- B60L53/68—Off-site monitoring or control, e.g. remote control
-
- 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
- B60L53/80—Exchanging energy storage elements, e.g. removable batteries
-
- 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
- B60L55/00—Arrangements for supplying energy stored within a vehicle to a power network, i.e. vehicle-to-grid [V2G] arrangements
-
- 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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
-
- 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
- B60L2210/00—Converter types
- B60L2210/30—AC 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
- B60L2210/00—Converter types
- B60L2210/40—DC to AC converters
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- 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
Definitions
- the present invention relates to a battery replacement station of a battery pack operating method when power supply is cut off. More specifically, when the power supply to the battery swapping station (BSS, Battery Swapping Station) for charging the replaceable battery is cut off due to a power outage or system error, the battery pack when the power supply is cut off to enable operation without downtime of the BSS system It relates to an operational battery replacement station.
- BSS Battery Swapping Station
- the battery exchange station is a place where a battery of an electric vehicle driven by electric energy is exchanged, and includes a plurality of batteries exchangeable with the battery of the electric vehicle, and the battery is charged with power supplied from a system.
- the battery provided in the battery replacement station is a battery for an electric vehicle, and has a limitation in that a large amount of power cannot be stored.
- new and renewable energy generation such as fuel cell power generation, wind power generation, and solar power generation has been operated in a manner of supplying the generated power included in the system to the system.
- renewable energy generation such as wind power and photovoltaic power generation has a problem in that utilization is greatly reduced because it is difficult to continuously maintain a constant power supply to the load due to the influence of the weather.
- fuel cell power generation due to the characteristic that power generation is possible in a state connected to a load, there is a limitation in operation in which power generation cannot be maintained when the connection is stopped due to a system or load failure.
- Korean Patent Registration No. 1528079 discloses that power supplied from the grid is charged to a large-capacity battery, and the power charged in the large-capacity battery is supplied to the grid according to the operating state of the system, thereby operating the system using the power charged in the battery and a battery exchange station having an effect of improving power demand and a method of operating the battery exchange station.
- no technology has been disclosed related to the operation of the battery exchange station in case of an emergency such as power failure.
- Korean Patent Publication No. 2021-0075160 discloses a first power control device including two inputs and at least two outputs and a second power control device including at least two inputs and at least two outputs, respectively.
- the power control device is configured to operate in an active mode or an isolated mode, wherein in the active mode, inputs and outputs of the power control device are electrically connected to each other, and in the isolated mode, inputs of the power control device and
- a power supply control system is disclosed in which the outputs are electrically isolated from each other, and the system operates in an active mode at any time, while the other power control device operates in an isolated mode. No technology has been disclosed regarding a battery replacement station capable of stably operating when power is supplied abnormally through the.
- Japanese Patent Registration No. 5872494 discloses a technology for a power conversion device for a vehicle having a level converter and a resistor to prevent discharge of a protective circuit for suppressing overvoltage. A technology for a battery replacement station has not been disclosed.
- UPS that supplies uninterrupted power to the load, electric vehicle and electric vehicle battery charging, two-way power trading between suppliers and consumers that utilize surplus or surplus power, and
- the above-mentioned limitations are solved to improve operation between grids and battery replacement stations, and battery pack operation in emergency situations when power supply that can achieve various functions and effects of intelligent power grid becomes impossible. It is necessary to present a battery replacement station of the type.
- Patent Document 1 Korean Registered Patent Publication No. 1528079
- Patent Document 2 Korean Patent Publication No. 2021-0075160
- Patent Document 3 Korean Registered Patent Publication No. 1418181
- Patent Document 4 Japanese Patent Registration No. 5872494
- the present invention is to solve the above problems, and when power supply to a battery swapping station (BSS, Battery Swapping Station) for charging a replaceable battery such as a power outage or system error is cut off, the BSS system can be operated without downtime. It is an object of the present invention to provide a battery replacement station of a battery pack operating method when power supply is cut off.
- BSS Battery Swapping Station
- the battery replacement station of the battery pack operation method of the present invention includes an external power grid for supplying power; one or more chargers for charging one or more battery packs; a controller for controlling the battery pack to be charged with power supplied from the external power grid through a grid; a main power supplying power to the charger and the controller; The controller may determine an operating state of the system and provide a battery replacement station using a battery pack operating method to supply power from the battery pack to the main power when the external power grid is unable to supply power.
- the charger may include one or more bi-directional DC/DC converters disposed in the housing to supply DC power to one or more battery packs.
- It may also include an AC/DC converter connected to the external power grid and converting current.
- the controller includes an MCU (Main Control Unit) formed between the AC/DC converter and the bi-directional DC/DC converter to generate a control signal; and a controller power source for driving.
- MCU Main Control Unit
- a first DC / DC converter formed between the AC / DC converter and the MCU may include.
- a second DC/DC converter formed between the MCU, the bi-directional DC/DC converter, and the battery pack may be included.
- the MCU may operate the second DC/DC converter to change a current direction of the bidirectional DC/DC converter from the battery pack to the main power.
- the controller may include a voltage sensing unit that determines whether or not there is an abnormal voltage between the first DC/DC converter and the MCU.
- a P-FET formed between the second DC/DC converter, the bi-directional DC/DC converter, and the battery pack, wherein the controller, when the voltage value by the voltage sensing unit is 0V, the P-FET.
- the controller when the voltage value by the voltage sensing unit is 0V, the P-FET.
- the second DC/DC converter operates to change the current direction of the bidirectional DC/DC converter from the battery pack to the main power.
- the receiving unit for receiving the identification information of the battery replacement station of the battery pack operation method; and a processor for determining whether to connect communication with the battery replacement station of the battery pack operation mode based on identification information and authentication information received from the battery replacement station of the battery pack operation mode.
- the electric driving device is not limited to the type of the device that secures the driving force using the battery pack.
- it may be an electric vehicle, an electric motorcycle, or an electric cart.
- the battery replacement station of the battery pack operating method has an effect of stably maintaining the operation of the battery pack even in an emergency when power supply is cut off.
- power is exchanged between a system for supplying power using a battery in which power is stored, a means of transportation receiving power, and a station, thereby enabling two-way power supply between linked devices or systems.
- FIG. 1 is a conceptual diagram illustrating the operation of a battery replacement station of a passenger device driven by a battery pack.
- FIG. 2 is a diagram schematically illustrating the operation of a battery replacement station of a battery pack operating method according to an embodiment of the present invention when external power is normally supplied to the battery replacement station and when power is cut off.
- FIG. 3 is a diagram illustrating a battery replacement station of a battery pack operating method reflecting power operation when external power is disconnected according to an embodiment of the present invention.
- FIG. 1 is a conceptual diagram illustrating the operation of a battery replacement station of a passenger device driven by a battery pack.
- a battery replacement system for an electric vehicle includes a server, a battery replacement station, and an electric vehicle.
- the server may be an integrated control center. It is obvious that the electric vehicle is not limited to any electric driving device that travels with an electric motor using a charging current of an electric battery.
- the server transmits information on a battery replacement station where the electric vehicle can exchange a battery to the electric vehicle.
- the electric vehicle replaces the battery at a battery replacement station that matches information on the battery replacement station received from the server.
- the server defines a specific battery exchange station as a target battery exchange station as a station where the battery of the electric vehicle is to be exchanged.
- the server may determine a station selected by a user of the electric vehicle as a target battery exchange station. Alternatively, the server may determine a station closest to the electric vehicle as a target battery exchange station.
- the external power source may have a power system line connected to the battery replacement station by wire.
- a power source supplying power to the power grid may be an existing conventional power generation source, and may preferably be a renewable energy power source.
- a wireless communication method may be used for communication between a server and an electric vehicle.
- the server and the electric vehicle may be communicatively connected using a long-distance wireless communication method using a mobile communication network such as 5G or LTE.
- Communication between the server and the battery exchange station may use a wireless communication method such as long-distance wireless communication or a wired communication method.
- Communication between the battery replacement station and the electric vehicle may be communicatively connected using a wireless communication method.
- the battery exchange station allows the plurality of batteries to be charged with power supplied from a plurality of batteries and a system, including a large-capacity battery dedicated to power storage and a replacement battery compatible with the battery of the means of transportation, and Accordingly, a controller (MCU) for controlling charging and discharging of the plurality of batteries is included so that the electric power charged in the plurality of batteries is supplied to the system.
- MCU controller
- the plurality of batteries may be secondary batteries capable of charging and discharging.
- the large-capacity battery may be any one of a Redox Flow Battery, a NaS Battery, and a Compressed Air Energy Storage (CAES) system
- the replacement battery may be any one of a Lithium-ion Battery, a Metal-Air Battery, and a Na-Based Battery. there is.
- the battery of the means of transportation When the battery of the means of transportation is exchanged with the replacement battery, power supplied from the system may be charged.
- the battery of the means of transportation may be charged by receiving power charged in the plurality of batteries.
- the battery of the means of transportation is charged by receiving power from the system, and the electric power charged in the battery of the means of transportation may be supplied to the plurality of batteries and the system.
- the power conversion device may further include a power conversion device that converts power charged in the plurality of batteries and power discharged from the plurality of batteries.
- the power conversion device may include a converter that converts AC power to DC power, an inverter that converts DC power to AC power, a switch, and a transformer that transforms the magnitude of a voltage.
- FIG. 2 is a diagram schematically illustrating the operation of a battery replacement station of a battery pack operating method according to an embodiment of the present invention when external power is normally supplied to the battery replacement station and when power is cut off.
- FIG. 2 is a diagram in which power is normally supplied to the battery replacement station from an external power grid, and (b) is a diagram in which power is not supplied from the external power grid.
- the MCU may supply power to the battery replacement station from one or more battery packs as shown in the dotted line.
- the battery replacement station of the battery pack operation method includes an external power grid that supplies power; one or more chargers for charging one or more battery packs; a controller for controlling the battery pack to be charged with power supplied from the external power grid through a grid; a main power supplying power to the charger and the controller; The controller may determine an operating state of the system and provide a battery replacement station using a battery pack operating method to supply power from the battery pack to the main power when the external power grid is unable to supply power.
- the charger may include one or more bi-directional DC/DC converters disposed in the housing to supply DC power to one or more battery packs.
- It may also include an AC/DC converter connected to the external power grid and converting current.
- the controller includes an MCU (Main Control Unit) formed between the AC/DC converter and the bi-directional DC/DC converter to generate a control signal; and a controller power source for driving.
- MCU Main Control Unit
- the replacement battery included in the station is included in the means of transportation to replace the battery of the means of transportation, and the battery of the means of transportation is used in the station. It can be included in to replace the replacement battery.
- the battery of the means of transportation may be exchanged with the exchange battery through an automatic battery exchange device provided in the station, or may be exchanged with the exchange battery in a manual replacement method.
- the power supplied from the system can be charged.
- a first DC / DC converter formed between the AC / DC converter and the MCU may include.
- a second DC/DC converter formed between the MCU, the bi-directional DC/DC converter, and the battery pack may be included.
- the MCU may operate the second DC/DC converter to change a current direction of the bidirectional DC/DC converter from the battery pack to the main power.
- the controller may include a voltage sensing unit that determines whether or not there is an abnormal voltage between the first DC/DC converter and the MCU.
- the battery of the means of transportation and the replacement battery are exchanged and the battery of the means of transportation is included in the station, the battery of the means of transportation replaces the battery for replacement, and the power supplied from the system can be charged.
- the battery of the means of transportation which is included in the station by being exchanged with the replacement battery and replaces the replacement battery, can be controlled by the control unit like the replacement battery.
- the battery of the means of transportation included in the station and replacing the replacement battery can also be discharged so that the charged power is supplied to the system, and the batteries of other means of transportation can be discharged. may be exchanged.
- the battery of the means of transportation may also be charged by receiving power charged in the plurality of batteries. That is, the battery of the means of transportation is not exchanged with the replacement battery, but can be charged by receiving the electric power charged in the plurality of batteries.
- the power charged in the replacement battery is preferentially supplied, but when it is difficult to charge the battery of the means of transportation with the power charged in the replacement battery, the large-capacity battery is charged. power can be supplied.
- Power supply to the battery of the means of transportation may be performed by the control unit controlling charging and discharging of the plurality of batteries.
- a P-FET formed between the second DC/DC converter, the bi-directional DC/DC converter, and the battery pack, wherein the controller, when the voltage value by the voltage sensing unit is 0V, the P-FET.
- the controller when the voltage value by the voltage sensing unit is 0V, the P-FET.
- the second DC/DC converter operates to change the current direction of the bidirectional DC/DC converter from the battery pack to the main power.
- the receiving unit for receiving the identification information of the battery replacement station of the battery pack operation method; and a processor for determining whether to connect communication with the battery replacement station of the battery pack operation mode based on identification information and authentication information received from the battery replacement station of the battery pack operation mode.
- the MCU controls the power charged in the plurality of batteries to be supplied to the system, and the load of the system Control to supply operating power to the battery replacement station from one or more batteries when power is below the predetermined standard, that is, in a situation in which charging of multiple batteries through the system is impossible or in an abnormal condition in which operation of the battery replacement station itself is impossible can do.
- the MCU determines that the time period during which the load power of the battery replacement station is maximally consumed is a time period during which power charged to the plurality of batteries is required at the maximum. It is defined as a peak time, and a period in which load power is consumed is divided into time zones, so that a time zone in which maximum load power is consumed may be specified and set.
- FIG. 3 is a diagram illustrating a battery replacement station of a battery pack operating method reflecting power operation when external power is disconnected according to an embodiment of the present invention.
- the battery replacement station and the electric vehicle can be connected through short-range communication using Wi-Fi.
- Wi-Fi wireless Fidelity
- the Wi-Fi built in the battery replacement station and the Wi-FI built in the electric vehicle may form a network in the form of a bridge.
- a communication connection may be automatically established when the electric vehicle is located near the battery station.
- the battery replacement station may provide a Wi-Fi network using a fixed local IP.
- the battery replacement station can open all ports to allow access to any electric vehicle.
- a DMZ may be set in the battery exchange station.
- the electric vehicle when it arrives near the battery replacement station while driving, it may establish a short-range communication connection with the battery replacement station through Wi-Fi using a preset local fixed IP.
- all battery replacement stations may be configured to connect to external devices via Wi-Fi with the same local static IP address.
- the electric vehicle may check whether a battery replacement station that has established a communication connection matches a battery replacement station to which a communication connection is to be established, and if matched, may maintain a communication connection with the connected battery replacement station.
- the electric vehicle may perform a communication connection with a desired battery replacement station through the connected battery replacement station if the battery replacement station to which communication is established does not coincide with the battery replacement station to which communication is to be established.
- the battery replacement station may query the server for the IP address of each battery replacement station, and may establish a communication connection between the battery replacement station and the electric vehicle according to the query result.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Stand-By Power Supply Arrangements (AREA)
Abstract
Description
Claims (10)
- 전력을 공급하는 외부전력그리드;하나 이상의 배터리팩을 충전하는 하나 이상의 충전기;상기 외부전력그리드로부터 공급된 전력이 계통을 통해 상기 배터리팩을 충전되도록 제어하는 제어기;상기 충전기 및 상기 제어기에 전원을 공급하는 메인전원;상기 제어기는 계통의 운영 상태를 판단하여,상기 외부전력그리드가 전력 공급이 불가능할 경우, 상기 배터리팩의 전력을 상기 메인전원으로 공급하는 배터리팩 운용방식의 배터리 교체 스테이션.
- 제1항에 있어서,상기 충전기는 상기 하우징 내에 배치되어 하나 이상의 배터리팩에 직류전원을 공급하는 하나 이상의 양방향DC/DC컨버터;를 포함하는 배터리팩 운용방식의 배터리 교체 스테이션.
- 제2항에 있어서,상기 외부전력그리드에 연결되며 전류를 변환하는 AC/DC 컨버터;를 포함하는 배터리팩 운용방식의 배터리 교체 스테이션.
- 제3항에 있어서,상기 제어기는 AC/DC컨버터와 상기 양방향DC/DC컨버터 사이에 형성되어 제어신호를 생성하는 MCU; 및 구동을 위한 제어기전원;을 포함하는 배터리팩 운용방식의 배터리 교체 스테이션.
- 제4항에 있어서,상기 AC/DC컨버터와 상기 MCU사이에 형성되는 제1DC/DC컨버터;를 포함하는 배터리팩 운용방식의 배터리 교체 스테이션.
- 제5항에 있어서,상기 MCU와 상기 양방향DC/DC컨버터 및 상기 배터리팩 사이에 형성되는 제2DC/DC컨버터;를 포함하는 배터리팩 운용방식의 배터리 교체 스테이션.
- 제6항에 있어서,상기 외부전력그리드가 차단되면 상기 MCU는 상기 제2DC/DC컨버터를 작동하여 상기 양방향DC/DC컨버터의 전류방향을 상기 배터리팩에서 상기 메인파워로 변경하는 포함하는 배터리팩 운용방식의 배터리 교체 스테이션.
- 제7항에 있어서,상기 제어기는 상기 제1DC/DC컨버터와 상기 MCU 사이의 전압 이상유무를 판단하는 전압센싱유닛;를 포함하는 배터리팩 운용방식의 배터리 교체 스테이션.
- 제8항에 있어서,상기 제2DC/DC컨버터와 상기 양방향DC/DC컨버터 및 상기 배터리팩 사이에 형성되는 P-FET;을 포함하고,상기 제어기는 상기 전압센싱유닛에 의한 전압값이 0V일 때, 상기 P-FET를 ON하여,상기 제2DC/DC컨버터가 동작하여 상기 양방향DC/DC컨버터의 전류방향을 상기 배터리팩에서 상기 메인파워로 변경하는 배터리팩 운용방식의 배터리 교체 스테이션.
- 제1항 내지 제9항 중 어느 한 항에 있어서,상기 배터리팩 운용방식의 배터리 교체 스테이션의 식별 정보를 수신하는 수신부;상기 배터리팩 운용방식의 배터리 교체 스테이션으로부터 수신한 식별정보와 인증 정보에 기초하여 상기 배터리팩 운용방식의 배터리 교체 스테이션과의 통신 연결 여부를 결정하는 프로세서;를 포함하는 전기 구동 디바이스.
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