KR20220151052A - Charging system of electric boat - Google Patents

Charging system of electric boat Download PDF

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KR20220151052A
KR20220151052A KR1020210057638A KR20210057638A KR20220151052A KR 20220151052 A KR20220151052 A KR 20220151052A KR 1020210057638 A KR1020210057638 A KR 1020210057638A KR 20210057638 A KR20210057638 A KR 20210057638A KR 20220151052 A KR20220151052 A KR 20220151052A
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South Korea
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voltage battery
low
converter
electricity
connector
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KR1020210057638A
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Korean (ko)
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KR102544870B1 (en
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성일혁
고연수
김기호
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주식회사 빈센
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    • 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
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by 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
    • B60L53/10—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
    • B60L53/50—Charging stations characterised by energy-storage or power-generation means
    • B60L53/51—Photovoltaic means
    • 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
    • B60L53/52—Wind-driven generators
    • 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
    • B60L53/54—Fuel cells
    • 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
    • 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]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H21/00—Use of propulsion power plant or units on vessels
    • B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
    • B63H21/17—Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
    • 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
    • B60L2200/32—Waterborne vessels
    • 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
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/547—Voltage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63J—AUXILIARIES ON VESSELS
    • B63J3/00—Driving of auxiliaries
    • B63J3/04—Driving of auxiliaries from power plant other than propulsion power plant
    • B63J2003/043—Driving of auxiliaries from power plant other than propulsion power plant using shore connectors for electric power supply from shore-borne mains, or other electric energy sources external to the vessel, e.g. for docked, or moored vessels
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The present invention relates to a charging system of an electric vessel. More specifically, when docked, electric vessel's high-voltage battery and low-voltage battery are charged simultaneously. After departure, a power from the high-voltage battery is charged to the low-voltage battery so that an electronic equipment can be used. Depending on a remaining charge of the high-voltage battery, an emergency generator is operated to charge the low-voltage battery. Thus, sailing back can be performed safely. The charging system of the electric vessel of the present invention comprises: a connector; the high-voltage battery; a converter; and the low-voltage battery.

Description

전기 선박의 충전 시스템{Charging system of electric boat}Charging system of electric boat {Charging system of electric boat}

본 발명은 전기 선박의 충전 시스템에 관한 것으로, 보다 구체적으로는 정박시 전기 선박의 고전압 배터리 및 저전압 배터리를 동시에 충전하고, 출항 후에는 고전압 배터리의 전원을 저전압 배터리에 충전하여 전자 장비를 이용할 수 있게 하되, 고전압 배터리의 충전 잔량에 따라 비상발전기를 가동하여 저전압 배터리를 충전함으로써 안전하게 회항할 수 있게 하는 전기 선박의 충전 시스템에 관한 것이다.The present invention relates to a charging system for an electric ship, and more particularly, simultaneously charges a high-voltage battery and a low-voltage battery of an electric ship when docked, and charges the high-voltage battery to the low-voltage battery after departure to use electronic equipment. However, it relates to a charging system of an electric ship that enables safe return by operating an emergency generator according to the remaining charge of the high-voltage battery to charge the low-voltage battery.

전 세계적으로 온실가스 및 대기 오염물질 배출 저감을 위해 환경 규제가 강화되고 있고 그에 따라 여러 가지 대책들이 마련되고 있다. 또한, 환경오염 최소화와 더불어 효과적이고 합리적인 에너지 절감 방법에 대한 필요성이 점차 커지고 있는 실정이다.Environmental regulations are being strengthened around the world to reduce greenhouse gas and air pollutant emissions, and various measures are being prepared accordingly. In addition, with the minimization of environmental pollution, the need for an effective and reasonable energy saving method is gradually increasing.

국제연합의 기후변화협약에서 온실가스 배출에 대해 규제가 발효됨에 따라 국제해사기구에서는 선박에 의한 해양 환경 파괴 요인에 대한 규정을 제정하였고, 이에 따라 2025년까지 온실가스 배출은 현행 대비 30% 감축을 목표로 강화될 예정이다. 또한, 해양오염방지협약 부속서 6장에서는 질소산화물 및 황산화물 배출에 대해 규제를 강화하고 있어 효과적이고 합리적인 에너지 절감 방법에 대한 필요성이 점차 커지고 있다.As regulations on greenhouse gas emissions came into effect in the United Nations Framework Convention on Climate Change, the International Maritime Organization enacted regulations on factors that destroy the marine environment by ships. target will be strengthened. In addition, Chapter 6 of Annex to the Convention for the Prevention and Control of Marine Pollution strengthens regulations on the emission of nitrogen oxides and sulfur oxides, so the need for effective and reasonable energy saving methods is gradually increasing.

선박은 현재까지 디젤 전기 추진 시스템 위주로 개발이 진행되어 왔으나, 최근 배터리 기술이 발전함에 따라 전기차와 더불어 전기 선박을 개발하고자 하는 노력이 있다.Until now, ships have been developed mainly for diesel electric propulsion systems, but as battery technology has recently developed, efforts have been made to develop electric ships along with electric vehicles.

한편, 전기 선박은 모터를 구동하기 위한 배터리가 탑재되고, 이 배터리는 300V 이상의 고전압 배터리가 이용되는데, 선박 내부의 전자장비들은 20V 이하의 저전압을 이용하므로 고전압 배터리로는 전자장비들을 운영할 수 없는 문제점이 있다.On the other hand, an electric ship is equipped with a battery for driving a motor, and a high-voltage battery of 300V or more is used for this battery. Since electronic equipment inside the ship uses a low voltage of 20V or less, high-voltage batteries cannot operate the electronic equipment. There is a problem.

또한, 전자장비들로 전원공급이 되지 않을 경우 운항을 할 수 없는 문제가 발생하며, 운항시 지속적인 전원 공급이 필요하다.In addition, when power is not supplied to the electronic equipment, there is a problem that operation cannot be performed, and continuous power supply is required during operation.

본 발명은 상술한 문제점을 해결하기 위해 안출된 것으로 본 발명의 목적은 모터 구동을 위한 고전압 배터리와 선박의 전자장비로 전원을 공급하는 저전압 배터리를 구비하며, 고전압 배터리와 저전압 배터리를 동시 충전할 수 있는 전기 선박의 충전 시스템을 제공하는 것이다.The present invention has been made to solve the above problems, and an object of the present invention is to provide a high voltage battery for driving a motor and a low voltage battery for supplying power to electronic equipment of a ship, and to simultaneously charge the high voltage battery and the low voltage battery. It is to provide a charging system for an electric ship.

또한, 본 발명의 다른 목적은 항해시 고전압 배터리에서 저전압 배터리로 지속적인 충전을 수행하되, 고전압 배터리의 충전 잔량에 따라 비상발전기를 가동하여 저전압 배터리를 충전함으로써 안전하게 회항할 수 있게 하는 전기 선박의 충전 시스템을 제공하는 것이다.In addition, another object of the present invention is a charging system for an electric ship that performs continuous charging from a high-voltage battery to a low-voltage battery during sailing, and enables safe return by operating an emergency generator according to the remaining charge of the high-voltage battery to charge the low-voltage battery. is to provide

상기의 목적을 달성하기 위하여 본 발명은 정박시 육상의 충전장치에 연결되어 전기를 공급받는 커넥터; 상기 커넥터와 연결되고 상기 커넥터로 공급되는 전기가 충전되며, 충전된 전기를 모터로 공급하는 고전압 배터리; 상기 커넥터와 상기 고전압 배터리 사이에 연결되고 상기 커넥터로 공급되는 전기를 강압하는 컨버터; 및 상기 컨버터에서 강압된 전기가 충전되며, 충전된 전기를 선박 내 전자 장비들로 공급하는 저전압 배터리;를 포함하고, 출항 후, 상기 컨버터는 상기 고전압 배터리의 전기를 강압하여 상기 저전압 배터리로 충전하는 것을 특징으로 하는 전기 선박의 충전 시스템을 제공한다.In order to achieve the above object, the present invention provides a connector connected to an onshore charging device to receive electricity when anchored; a high voltage battery connected to the connector, charged with electricity supplied to the connector, and supplying the charged electricity to a motor; a converter connected between the connector and the high voltage battery and step-down of electricity supplied to the connector; and a low-voltage battery to which the electricity stepped-down by the converter is charged and to supply the charged electricity to electronic equipment in the ship, wherein after departure, the converter steps-down electricity from the high-voltage battery to charge the low-voltage battery. It provides a charging system for an electric ship, characterized in that.

바람직한 실시예에 있어서, 상기 컨버터의 동작을 제어하는 제어기;를 더 포함하고, 상기 제어기는 상기 고전압 배터리의 충전잔량을 체크하고, 상기 고전압 배터리의 충전잔량이 선박이 현재 위치에서 회항 위치로 돌아갈 수 있는 최소 회항 잔량 이하일 경우, 상기 컨버터가 상기 고전압 배터리에서 상기 저전압 배터리로의 충전을 중지시킨다.In a preferred embodiment, it further includes a controller for controlling the operation of the converter, wherein the controller checks the remaining charge of the high voltage battery, and the remaining charge of the high voltage battery enables the ship to return from the current position to the turning position. If the residual amount is less than the minimum return amount, the converter stops charging from the high voltage battery to the low voltage battery.

바람직한 실시예에 있어서, 수소연료전지, 디젤발전기, 태양광패널 또는 풍력발전기를 포함하는 비상발전기를 더 포함하고, 상기 제어기는 상기 고전압 배터리의 충전잔량이 상기 최소 회항 잔량 이하일 경우 상기 컨버터가 상기 비상발전기에서 생산된 전기를 변환하여 상기 저전압 배터리에 충전하게 한다.In a preferred embodiment, the method further includes an emergency generator including a hydrogen fuel cell, a diesel generator, a solar panel, or a wind power generator, wherein the controller operates the converter when the remaining charge of the high voltage battery is less than or equal to the minimum return amount. Electricity produced by the generator is converted to charge the low-voltage battery.

또한, 본 발명은 상기 충전 시스템이 구비된 전기 선박을 더 제공한다.In addition, the present invention further provides an electric vessel equipped with the charging system.

본 발명은 다음과 같은 우수한 효과를 가진다.The present invention has the following excellent effects.

본 발명의 충전 시스템에 의하면, 모터 구동을 위한 고전압 배터리와 선박의 전자장비로 전원을 공급하는 저전압 배터리를 서로 분리하여 구비하고, 고전압 배터리와 저전압 배터리를 동시 충전할 수 있으므로 모터와 전자장비를 서로 독립적으로 운영할 수 있게 하는 장점이 있다.According to the charging system of the present invention, the high voltage battery for driving the motor and the low voltage battery for supplying power to the ship's electronic equipment are separated from each other, and the high voltage battery and the low voltage battery can be charged simultaneously, so that the motor and the electronic equipment can be charged together. It has the advantage of being able to operate independently.

또한, 본 발명의 충전 시스템에 의하면, 출항 후, 고전압 배터리의 전원을 저전압 배터리로 충전할 수 있어 저전압 배터리가 방전되는 것을 방지할 수 있고 전자장비를 지속적으로 운영할 수 있는 장점이 있다.In addition, according to the charging system of the present invention, after departure, the high voltage battery can be charged with the low voltage battery, so that the low voltage battery can be prevented from being discharged and the electronic equipment can be continuously operated.

또한, 본 발명의 충전 시스템에 의하면, 출항 후, 고전압 배터리의 잔량이 최소 회항 잔량 이하일 경우 고전압 배터리에서 저전압 배터리로 충전하는 것을 중단하고 비상 발전기를 가동하여 저전압 배터리를 충전할 수 있으므로 자력으로 안전하게 회항할 수 있는 장점이 있다.In addition, according to the charging system of the present invention, after departure, if the remaining amount of the high-voltage battery is less than the minimum return amount, the charging of the high-voltage battery to the low-voltage battery is stopped and the emergency generator is operated to charge the low-voltage battery, so that the low-voltage battery can be charged safely by itself. There are advantages to doing so.

도 1은 본 발명의 일 실시에에 따른 충전 시스템에 구비된 전기 선박을 설명하기 위한 도면,
도 2는 본 발명의 일 실시예에 따른 충전 시스템의 구성을 보여주는 도면이다.1 is a view for explaining an electric vessel provided in a charging system according to an embodiment of the present invention;
2 is a diagram showing the configuration of a charging system according to an embodiment of the present invention.

본 발명에서 사용되는 용어는 가능한 현재 널리 사용되는 일반적인 용어를 선택하였으나, 특정한 경우는 출원인이 임의로 선정한 용어도 있는데 이 경우에는 단순한 용어의 명칭이 아닌 발명의 상세한 설명 부분에 기재되거나 사용된 의미를 고려하여 그 의미가 파악되어야 할 것이다.The terms used in the present invention have been selected from general terms that are currently widely used as much as possible, but in certain cases, there are terms arbitrarily selected by the applicant. Therefore, its meaning should be understood.

이하, 첨부한 도면에 도시된 바람직한 실시예들을 참조하여 본 발명의 기술적 구성을 상세하게 설명한다.Hereinafter, the technical configuration of the present invention will be described in detail with reference to preferred embodiments shown in the accompanying drawings.

그러나 본 발명은 여기서 설명되는 실시예에 한정되지 않고 다른 형태로 구체화될 수도 있다. 명세서 전체에 걸쳐 동일한 참조번호는 동일한 구성요소를 나타낸다.However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. Like reference numbers indicate like elements throughout the specification.

도 1은 본 발명의 일 실시에에 따른 충전 시스템에 구비된 전기 선박을 설명하기 위한 도면이다. 1 is a view for explaining an electric vessel provided in a charging system according to an embodiment of the present invention.

도 1을 참조하면, 본 발명의 충전 시스템은 전기 선박(10)에 탑재되며, 정박시 육상의 충전장치(20)와 연결되어 전원을 공급받는다.Referring to FIG. 1, the charging system of the present invention is mounted on an electric vessel 10, and is connected to a land-based charging device 20 when it is docked to receive power.

또한, 본 발명의 충전 시스템은 전기 선박(10)의 모터 및 전자장비들이 서로 독립적으로 운용될 수 있도록 전력을 공급한다.In addition, the charging system of the present invention supplies power so that the motor and electronic equipment of the electric vessel 10 can be operated independently of each other.

도 2는 본 발명의 일 실시예에 따른 충전 시스템의 구성을 보여주는 도면이다.2 is a diagram showing the configuration of a charging system according to an embodiment of the present invention.

도 2를 참조하면, 본 발명의 충전 시스템(100)은 커넥터(110), 고전압 배터리(120), 컨버터(130) 및 저전압 배터리(140)를 포함하고, 비상 발전기(160)를 더 포함할 수 있다.Referring to FIG. 2 , the charging system 100 of the present invention includes a connector 110, a high voltage battery 120, a converter 130 and a low voltage battery 140, and may further include an emergency generator 160. have.

상기 커넥터(110)는 전기 선박(10)이 부두에 정박할 때, 육상의 충전장치(20)에 연결되며, 상기 충전장치(20)로부터 전기를 공급받는다.The connector 110 is connected to the charging device 20 on land when the electric ship 10 is docked at the pier, and receives electricity from the charging device 20 .

상기 고전압 배터리(120)는 상기 커넥터(110)로 입력되는 고전압을 직접 충전한다.The high voltage battery 120 directly charges the high voltage input through the connector 110 .

또한, 상기 고전압 배터리(120)에 충전된 전원은 인버터(122)를 통해 변환되어 모터(121)로 공급되며, 상기 모터(121)는 선박에 구동력을 제공한다.In addition, the power charged in the high voltage battery 120 is converted through the inverter 122 and supplied to the motor 121, and the motor 121 provides driving force to the ship.

예를 들면, 상기 고전압 배터리(120)는 정격 300V 이상의 고전압을 충전할 수 있다.For example, the high voltage battery 120 can be charged with a high voltage of 300V or more.

상기 컨버터(130)는 상기 커넥터(110)와 상기 고전압 배터리(120) 사이에 연결되며 상기 커넥터(110)에서 공급되는 전기를 입력받고 강압하여 출력한다.The converter 130 is connected between the connector 110 and the high voltage battery 120, receives electricity supplied from the connector 110, and outputs a step-down voltage.

또한, 상기 컨버터(130)는 DC/DC 컨버터이며, 예를 들면, 300V 이상의 고전압 직류를 12V 내지 20V의 저전압 직류로 변환하여 출력한다.In addition, the converter 130 is a DC/DC converter, and converts, for example, a high-voltage direct current of 300V or more into a low-voltage direct current of 12V to 20V and outputs it.

상기 저전압 배터리(140)는 상기 컨버터(130)에서 강압되어 출력되는 전기를 저장한다.The low voltage battery 140 stores electricity output after being stepped down by the converter 130 .

또한, 상기 저전압 배터리(140)는 선박의 각종 전자 장비들(150)로 전기를 공급한다.In addition, the low voltage battery 140 supplies electricity to various electronic equipment 150 of the ship.

예를 들면, 상기 전자 장비들(150)은 조명(151), 운항 정보나 해도 등을 표시하는 디스플레이(152), 상기 모터(121)의 출력을 조정하는 스로틀(153), 갑판으로 넘쳐 들어온 해수를 배출하는 빌지 펌프(154) 및 상기 컨버터(130) 및 상기 인버터(122)를 제어하는 제어기(155) 등을 포함할 수 있다.For example, the electronic equipments 150 include lights 151, a display 152 displaying navigational information or charts, a throttle 153 adjusting the output of the motor 121, and seawater flooding into the deck. It may include a bilge pump 154 for discharging and a controller 155 for controlling the converter 130 and the inverter 122.

즉, 본원 발명의 충전 시스템(100)은 모터(121)를 구동하기 위한 고전압 배터리(120)와 전자 장비들(150)을 운영하기 위한 저전압 배터리(140)가 분리되어 있으므로 상기 전자 장비들(150)로 안정적인 전원 공급이 가능하다.That is, in the charging system 100 of the present invention, since the high voltage battery 120 for driving the motor 121 and the low voltage battery 140 for operating the electronic equipment 150 are separated, the electronic equipment 150 ) to provide a stable power supply.

한편, 상기 전자장비들(150)은 항해시 선박의 항해 제어, 외부와의 통신 등을 수행하므로 출항 후, 상기 저전압 배터리(140)가 방전될 경우 조난의 위험이 있다.Meanwhile, since the electronic devices 150 perform navigation control of the ship and communication with the outside during sailing, there is a risk of distress when the low-voltage battery 140 is discharged after sailing.

따라서, 본 발명은 상기 저전압 배터리(140)가 방전되는 것을 방지하기 위해 출항 후, 상기 고전압 배터리(120)의 전기를 상기 컨버터(130)를 통해 강압하여 상기 저전압 배터리(140)에 공급한다.Therefore, in order to prevent the low voltage battery 140 from being discharged, the present invention supplies electricity from the high voltage battery 120 to the low voltage battery 140 by stepping it down through the converter 130 after sailing.

이렇게 상기 고전압 배터리(120)의 전기를 상기 저전압 배터리(140)에 충전하는 것은 출항 후 지속적으로 수행될 수 있으며, 설계자에 따라 상기 저전압 배터리(140)의 잔량이 설정치 이하가 될 경우에만 상기 고전압 배터리(120)에서 상기 저전압 배터리(140)로 전원 충전을 수행할 수 있다.In this way, charging the low voltage battery 140 with electricity from the high voltage battery 120 may be continuously performed after departure, and according to a designer, the high voltage battery 140 may be charged only when the remaining amount of the low voltage battery 140 is less than a set value. In step 120 , power charging may be performed with the low voltage battery 140 .

한편, 상기 컨버터(130)의 동작은 상기 제어기(155)에 의해 제어된다.Meanwhile, the operation of the converter 130 is controlled by the controller 155 .

또한, 상기 제어기(155)는 상기 고전압 배터리(120)의 충전 잔량을 체크하고, 현재 충전 잔량이 선박이 현재 위치에서 회항 위치로 돌아갈 수 있는 최소 회항 잔량 이하일 경우 상기 컨버터(130)가 상기 고전압 배터리(120)에서 상기 저전압 배터리(140)로의 충전하는 것을 중지시킨다.In addition, the controller 155 checks the remaining charge of the high voltage battery 120, and if the current remaining charge is equal to or less than the minimum return amount for the ship to return to the return position from the current position, the converter 130 switches the high voltage battery At 120, charging to the low voltage battery 140 is stopped.

이는 최소한 전기 선박(10)이 자력으로 회항할 수 있도록 하기 위함이다.This is to ensure that at least the electric vessel 10 can return by its own power.

또한, 상기 최소 회항 잔량은 상기 고전압 배터리(120)의 잔량과 현재 선박의 속도 데이터를 이용하여 계산 가능하다.In addition, the minimum return amount can be calculated using the remaining amount of the high voltage battery 120 and the current speed data of the ship.

상기 비상 발전기(160)는 상기 고전압 배터리(120)의 잔량이 최소 회항 잔량 이하일 경우 상기 컨버터(130)를 통해 상기 저전압 배터리(140)에 전원을 충전한다.The emergency generator 160 charges the low voltage battery 140 with power through the converter 130 when the remaining amount of the high voltage battery 120 is equal to or less than the minimum return amount.

한편, 상기 고전압 배터리(120)에 최소 회항 잔량이 남아 있다 하더라도, 상기 저전압 배터리(140)가 방전될 경우 상기 전자장비들(150)을 운용할 수 없으므로, 회항하는 데 어려움이 발생한다.On the other hand, even if the minimum return amount remains in the high voltage battery 120, when the low voltage battery 140 is discharged, the electronic equipment 150 cannot be operated, making it difficult to return.

따라서, 상기 비상 발전기(160)는 상기 고전압 배터리(120)가 최소 회항 잔량 이하일 경우 상기 저전압 배터리(140)에 전원을 충전하여 상기 전자장비들(150)을 정상운용할 수 있게 함으로써 정상적으로 회항할 수 있게 한다.Therefore, when the high voltage battery 120 has a minimum return capacity or less, the emergency generator 160 charges the low voltage battery 140 with power so that the electronic equipment 150 can be normally operated so that the electronic equipment 150 can return normally. let it be

또한, 상기 비상 발전기(160)는 태양광패널(161), 디젤 발전기(162), 풍력 발전기(163) 또는 수소연료전지(164)를 포함할 수 있다.In addition, the emergency generator 160 may include a solar panel 161, a diesel generator 162, a wind power generator 163, or a hydrogen fuel cell 164.

본 발명에서는 상기 비상 발전기(160)로 태양광패널(161)이나 풍력발전기(163)보다는 기상 조건에 영향이 적고 디젤 발전기(162)보다는 친환경적인 수소연료전지(164)를 이용하였다.In the present invention, as the emergency generator 160, a hydrogen fuel cell 164 that is less affected by weather conditions than the solar panel 161 or the wind power generator 163 and is more environmentally friendly than the diesel generator 162 is used.

따라서, 본 발명의 충전 시스템(100)에 의하면, 고전압 배터리(120)와 저전압 배터리(140)를 분리하여 모터(121)와 전자장비들(150)을 서로 독립적으로 운영할 수 있고, 출항 후, 고전압 배터리(120)의 전원을 저전압 배터리(140)로 충전할 수 있어 저전압 배터리(140)가 방전되는 것을 방지할 수 있으며, 고전압 배터리(120)의 잔량이 최소 회항 잔량 이하일 경우 비상 발전기(160)를 가동하여 저전압 배터리(140)를 충전할 수 있으므로 안전하게 회항할 수 있는 장점이 있다.Therefore, according to the charging system 100 of the present invention, the motor 121 and the electronic equipment 150 can be operated independently of each other by separating the high voltage battery 120 and the low voltage battery 140, and after departure, Since the high voltage battery 120 can be charged with the low voltage battery 140, the low voltage battery 140 can be prevented from being discharged. Since it is possible to charge the low-voltage battery 140 by operating, there is an advantage in that it can return safely.

이상에서 살펴본 바와 같이 본 발명은 바람직한 실시예를 들어 도시하고 설명하였으나, 상기한 실시예에 한정되지 아니하며 본 발명의 정신을 벗어나지 않는 범위 내에서 당해 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 의해 다양한 변경과 수정이 가능할 것이다.As described above, the present invention has been shown and described with preferred embodiments, but is not limited to the above embodiments, and to those skilled in the art within the scope of not departing from the spirit of the present invention Various changes and modifications will be possible.

100;충전 시스템 110:커넥터
120:고전압 배터리 121:모터
122:인버터 130:컨버터
140:저전압 배터리 150:전자장비
151:조명 152:디스플레이
153:스로틀 154:빌지펌프
155:제어기 160:비상발전기
161:태양광패널 162:디젤 발전기
163;풍력 발전기 164:수소연료전지100; charging system 110: connector
120: high voltage battery 121: motor
122: inverter 130: converter
140: low voltage battery 150: electronic equipment
151: lighting 152: display
153: throttle 154: bilge pump
155: controller 160: emergency generator
161: solar panel 162: diesel generator
163; wind power generator 164: hydrogen fuel cell

Claims (4)

정박시 육상의 충전장치에 연결되어 전기를 공급받는 커넥터;
상기 커넥터와 연결되고 상기 커넥터로 공급되는 전기가 충전되며, 충전된 전기를 모터로 공급하는 고전압 배터리;
상기 커넥터와 상기 고전압 배터리 사이에 연결되고 상기 커넥터로 공급되는 전기를 강압하는 컨버터; 및
상기 컨버터에서 강압된 전기가 충전되며, 충전된 전기를 선박 내 전자 장비들로 공급하는 저전압 배터리;를 포함하고,
출항 후, 상기 컨버터는 상기 고전압 배터리의 전기를 강압하여 상기 저전압 배터리로 충전하는 것을 특징으로 하는 전기 선박의 충전 시스템.
A connector connected to an onshore charging device to receive electricity when docked;
a high voltage battery connected to the connector, charged with electricity supplied to the connector, and supplying the charged electricity to a motor;
a converter connected between the connector and the high voltage battery and step-down of electricity supplied to the connector; and
A low-voltage battery for charging the electricity stepped-down in the converter and supplying the charged electricity to electronic equipment in the ship; includes,
After departure, the converter steps down the electricity of the high-voltage battery to charge the low-voltage battery.
 제 1 항에 있어서,
상기 컨버터의 동작을 제어하는 제어기;를 더 포함하고,
상기 제어기는 상기 고전압 배터리의 충전잔량을 체크하고, 상기 고전압 배터리의 충전잔량이 선박이 현재 위치에서 회항 위치로 돌아갈 수 있는 최소 회항 잔량 이하일 경우, 상기 컨버터가 상기 고전압 배터리에서 상기 저전압 배터리로의 충전을 중지시키는 것을 특징으로 하는 전기 선박의 충전 시스템.
According to claim 1,
Further comprising a controller for controlling the operation of the converter;
The controller checks the remaining charge of the high-voltage battery, and if the remaining charge of the high-voltage battery is equal to or less than the minimum return amount for the ship to return to the turning position from the current position, the converter charges the high-voltage battery to the low-voltage battery. Charging system of an electric ship, characterized in that for stopping.
 제 2 항에 있어서,
수소연료전지, 디젤발전기, 태양광패널 또는 풍력발전기를 포함하는 비상발전기를 더 포함하고,
상기 제어기는 상기 고전압 배터리의 충전잔량이 상기 최소 회항 잔량 이하일 경우 상기 컨버터가 상기 비상발전기에서 생산된 전기를 변환하여 상기 저전압 배터리에 충전하게 하는 것을 특징으로 하는 전기 선박의 충전 시스템.According to claim 2,
Further comprising an emergency generator including a hydrogen fuel cell, a diesel generator, a solar panel or a wind generator,
Wherein the controller causes the converter to convert electricity generated from the emergency generator to charge the low voltage battery when the remaining charge of the high voltage battery is less than or equal to the minimum return remaining amount. 제 1 항 내지 제 3 항 중, 어느 한 항의 충전 시스템이 구비된 전기 선박.
An electric vessel equipped with the charging system of any one of claims 1 to 3.
KR1020210057638A 2021-05-04 2021-05-04 Charging system of electric boat KR102544870B1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014072959A (en) * 2012-09-28 2014-04-21 Kanji Takamasa Ship charging device
KR20190069923A (en) * 2017-12-12 2019-06-20 주식회사 만도 A low voltage battery charging system intergrated with an on board charger
KR20190134392A (en) * 2018-05-25 2019-12-04 주식회사 경신 Apparatus for power supply for electric vehicle

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014072959A (en) * 2012-09-28 2014-04-21 Kanji Takamasa Ship charging device
KR20190069923A (en) * 2017-12-12 2019-06-20 주식회사 만도 A low voltage battery charging system intergrated with an on board charger
KR20190134392A (en) * 2018-05-25 2019-12-04 주식회사 경신 Apparatus for power supply for electric vehicle

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