KR20210037105A - ESS operation system based on storage battery of electric vehicle that can prevent battery discharge - Google Patents

ESS operation system based on storage battery of electric vehicle that can prevent battery discharge Download PDF

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KR20210037105A
KR20210037105A KR1020190119308A KR20190119308A KR20210037105A KR 20210037105 A KR20210037105 A KR 20210037105A KR 1020190119308 A KR1020190119308 A KR 1020190119308A KR 20190119308 A KR20190119308 A KR 20190119308A KR 20210037105 A KR20210037105 A KR 20210037105A
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power
idle
electric vehicle
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storage unit
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KR102278937B1 (en
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정인호
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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
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
    • G01R19/16538—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies
    • G01R19/16542—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies for batteries
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • B60Y2200/91—Electric vehicles
    • 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
    • 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
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

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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)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)

Abstract

The present invention relates to an ESS operating system based on a storage battery of an electric vehicle, capable of preventing battery discharge, which comprises: a power converter (30); an idle power storage unit (40) for supplying and transmitting idle power to a part of an operating unit (20); a solenoid valve (74) having a first sensor (72); and a controller for controlling the entire operation.

Description

배터리 방전을 예방할 수 있는 전기자동차의 축전지를 기반으로 하는 ESS 운영시스템{ESS operation system based on storage battery of electric vehicle that can prevent battery discharge}ESS operation system based on storage battery of electric vehicle that can prevent battery discharge}

본 발명은 배터리 방전을 예방할 수 있는 전기자동차의 축전지를 기반으로 하는 ESS 운영시스템에 관한 것으로서, 보다 상세하게는 ESS로 유휴전력을 저장하여 과부하 시에 저장된 유휴전력의 에너지를 사용토록 함으로써 부하 평준하를 통해 전력계통의 운영 최적화를 도모하고, 또한 예비전력을 충분히 확보할 수 있어 배터리의 방전을 예방함으로써 전기자동차의 안정적인 운행이 가능하도록 한 배터리 방전을 예방할 수 있는 전기자동차의 축전지를 기반으로 하는 ESS 운영시스템에 관한 것이다.The present invention relates to an ESS operating system based on a storage battery of an electric vehicle capable of preventing battery discharge.More specifically, the ESS stores idle power and uses the energy of the stored idle power when overloading, thereby reducing load leveling. ESS based on electric vehicle storage batteries that can prevent battery discharge, which enables stable operation of electric vehicles by preventing battery discharge by optimizing the operation of the power system and securing sufficient reserve power. It relates to the operating system.

일반적으로 ESS(Energy storage system)는 장치 혹은 물리적 매체를 이용하여 에너지를 저장하는 것을 말한다. 이에 쓰이는 장치를 축압기라 하고, 더 넓은 범위의 시스템 전체를 에너지 저장 시스템(ESS)라고 한다. 일반 가정에서 사용하는 건전지나 전자제품에 사용하는 소형 배터리도 전기에너지를 다른 에너지 형태로 변환하여 저장할 수 있지만 이런 소규모 전력저장장치를 ESS라고 말하지는 않고, 일반적으로 수백 kWh 이상의 전력을 저장하는 단독 시스템을 ESS라고 한다. In general, ESS (Energy storage system) refers to storing energy using a device or a physical medium. The device used for this is called an accumulator, and the entire system in a wider range is called an energy storage system (ESS). Batteries used in general homes or small batteries used in electronic products can also convert and store electric energy into other forms of energy, but such small power storage devices are not called ESS, but are generally a single system that stores hundreds of kWh or more of electricity. Is called ESS.

ESS는 전력계통에서 발전, 송배전, 수용가에 설치되어 운영이 가능하며, 주파수 조정(Frequency Regulation), 신재생발전기 출력 안정화, 첨두부하 저감(Peak Shaving), 부하평준화(Load Leveling), 비상전원 등의 기능으로 사용된다. 또한, ESS는 전기에너지를 적게 사용할 때 저장하고 필요할 때 공급함으로써 에너지 이용효율 향상, 신·재생에너지 활용도 제고 및 전력공급시스템 안정화에 기여할 수 있다.ESS can be installed and operated at power generation, transmission and distribution, and customers in the power system, and it can be operated by frequency regulation, stabilizing the output of new and renewable generators, peak shaving, load leveling, and emergency power. It is used as a function. In addition, ESS can contribute to improving energy use efficiency, enhancing the use of new and renewable energy, and stabilizing the power supply system by storing and supplying electric energy when less electric energy is used.

상기한 에너지 저장시스템(ESS; Energy Storage System)에 관한 연구가 활발히 진행되고 있는데, 이 에너지 저장시스템은 발전소에서 과잉 생산된 전력을 저장해 두었다가 일시적으로 전력이 부족할 때 송전해주는 시스템으로, 현재의 발전시스템을 최대한 효율적으로 활용하기 위한 방안으로 급속히 부각되고 있다.Research on the above-described energy storage system (ESS) is being actively conducted.This energy storage system stores excess power produced in a power plant and transmits it temporarily when power is insufficient. It is rapidly emerging as a way to utilize the most efficiently.

그러나, 종래의 배터리 충전시스템은 상용전원 만을 사용하여 전기자동차의 배터리를 충전하는 시스템이라서 전력원을 이용하는 에너지를 재생하여 사용할 수 없는 문제점이 있었다.However, the conventional battery charging system is a system for charging a battery of an electric vehicle using only a commercial power source, and thus there is a problem in that energy using a power source cannot be regenerated and used.

등록특허 제10-1901797호Registered Patent No. 10-1901797

이에 본 발명은 상기한 문제점을 일소하기 위해 창안한 것으로서, ESS로 유휴전력을 저장하여 과부하 시에 저장된 유휴전력의 에너지를 사용토록 함으로써 부하 평준하를 통해 전력계통의 운영 최적화를 도모하고, 또한 예비전력을 충분히 확보할 수 있어 배터리의 방전을 예방함으로써 전기자동차의 안정적인 운행이 가능하도록 한 배터리 방전을 예방할 수 있는 전기자동차의 축전지를 기반으로 하는 ESS 운영시스템에 주안점을 두고 그 기술적 과제로서 완성한 것이다.Accordingly, the present invention was invented to eliminate the above problems, and by storing idle power in an ESS to use the energy of the stored idle power when overloading, it aims to optimize the operation of the power system through load leveling, and also It was completed as a technical task with the focus on the ESS operating system based on the storage battery of the electric vehicle, which can prevent battery discharge, which enables stable operation of the electric vehicle by preventing the discharge of the battery because it can secure enough power.

위 기술적 과제를 달성하기 위한 본 발명은, 배터리 방전을 예방할 수 있는 전기자동차의 축전지를 기반으로 하는 ESS 운영시스템을 구성함에 있어서, 전력공급부(10)로부터 교류전력을 공급 받아 직류전력으로 변환하여 전기자동차 내의 다수 작동부(20) 마다에 공급전달하는 전력변환기(30); 상기 전력변환기(30)를 거쳐 제1전력이동선(71)을 통해 직류전력을 공급받는 다수 작동부(20)의 회전구동에너지에 의해 상기 전력공급부(10)의 전력이 계속적으로 충전되고, 상기 전력변환기(30)에서 제1전력이동선(71)과 분배된 제2전력이동선(81)을 통해 직류전력을 공급받아 유휴전력을 저장해 두고, 상기 전력공급부(10)의 과부하시 유휴전력을 일부 작동부(20)에 공급전달하는 유휴전력저장부(40); 상기 전력공급부(10)의 제1전력이동선(71) 상에는 작동부(20)로 전달되는 직류전력의 공급 과부하를 감지하는 제1감지센서(72)가 구비되고, 상기 제1감지센서(72)의 과부하 감지 신호 유뮤에 따라 유휴전력저장부(40)의 유휴전력 공급라인을 개폐 제어하는 전자밸브(74); 상기 전력공급부(10), 전력변환기(30), 유휴전력저장부(40) 및 전자밸브(74)에 연결되어 전체 작동을 제어하는 컨트롤러;를 포함하여 이루어지는 것을 특징으로 하는 배터리 방전을 예방할 수 있는 전기자동차의 축전지를 기반으로 하는 ESS 운영시스템을 제공한다.The present invention for achieving the above technical problem is, in constructing an ESS operating system based on a storage battery of an electric vehicle that can prevent battery discharge, receives AC power from the power supply unit 10 and converts it to DC power to generate electricity. A power converter 30 for supplying and transmitting to each of the plurality of operating units 20 in the vehicle; The power of the power supply unit 10 is continuously charged by the rotational driving energy of the plurality of operation units 20 receiving DC power through the first power transfer line 71 through the power converter 30, and the power The converter 30 receives DC power through the first power transfer line 71 and the distributed second power transfer line 81 to store the idle power, and when the power supply unit 10 is overloaded, some of the idle power is stored in the operating unit. Idle power storage unit 40 for supplying and transmitting to (20); On the first power transfer line 71 of the power supply unit 10, a first detection sensor 72 for detecting an overload of supply of DC power delivered to the operation unit 20 is provided, and the first detection sensor 72 An electromagnetic valve 74 for opening and closing the idle power supply line of the idle power storage unit 40 according to the presence or absence of an overload detection signal of; A controller connected to the power supply unit 10, the power converter 30, the idle power storage unit 40, and the solenoid valve 74 to control the entire operation; Provides an ESS operating system based on electric vehicle storage batteries.

또 다른 본 발명은, 배터리 방전을 예방할 수 있는 전기자동차의 축전지를 기반으로 하는 ESS 운영시스템을 구성함에 있어서, 전력공급부(10)로부터 교류전력을 공급 받아 직류전력으로 변환하여 전기자동차 내의 다수 작동부(20) 마다에 공급전달하는 전력변환기(30); 상기 전력변환기(30)를 거쳐 제1전력이동선(71)을 통해 직류전력을 공급받는 다수 작동부(20)의 회전구동에너지에 의해 상기 전력공급부(10)의 전력이 계속적으로 충전되고, 상기 전력변환기(30)에서 제1전력이동선(71)과 분배된 제2전력이동선(81)을 통해 직류전력을 공급받아 유휴전력을 저장해 두고, 상기 전력공급부(10)의 전력저장량이 최소안전치로 설정된 30％ 이하가 되면 유휴전력을 일부 작동부(20)에 공급전달하는 유휴전력저장부(40); 상기 전력공급부(10) 내에는 전력저장량을 감지하는 제2감지센서(82)가 구비되고, 상기 제2감지센서(82)의 최소안전치 감지 신호 유뮤에 따라 유휴전력저장부(40)의 유휴전력 공급라인을 개폐 제어하는 전자밸브(74); 상기 전력공급부(10), 전력변환기(30), 유휴전력저장부(40) 및 전자밸브(74)에 연결되어 전체 작동을 제어하는 컨트롤러(50);를 포함하여 이루어지는 것을 특징으로 하는 배터리 방전을 예방할 수 있는 전기자동차의 축전지를 기반으로 하는 ESS 운영시스템을 제공한다.In another aspect of the present invention, in constructing an ESS operating system based on a storage battery of an electric vehicle capable of preventing battery discharge, AC power is supplied from the power supply unit 10 and converted into DC power, and a plurality of operating units in the electric vehicle (20) a power converter 30 for supplying and transmitting each time; The power of the power supply unit 10 is continuously charged by the rotational driving energy of the plurality of operation units 20 receiving DC power through the first power transfer line 71 through the power converter 30, and the power The converter 30 receives DC power through the first power transfer line 71 and the distributed second power transfer line 81 to store idle power, and the power storage amount of the power supply unit 10 is set to a minimum safe value. When the percentage is less than the idle power storage unit 40 for supplying and transmitting the idle power to some operation unit 20; In the power supply unit 10, a second detection sensor 82 for detecting the amount of power storage is provided, and the idle power storage unit 40 is idle according to the presence or absence of a minimum safety value detection signal of the second detection sensor 82. An solenoid valve 74 for controlling opening and closing of the power supply line; The power supply unit 10, the power converter 30, the idle power storage unit 40, and a controller 50 connected to the solenoid valve 74 to control the entire operation; Provides an ESS operating system based on preventable electric vehicle storage batteries.

이때, 상기 유휴전력저장부(40)의 전력저장량이 최소안전치로 설정된 20％ 이하가 되면 이를 유휴전력저장부(40) 내에 구비된 제3감지센서(42)에서 컨트롤러로 신호를 전달하여 전력변환기(30)와 연결된 제1전력이동선(71) 상의 전자밸브(74)를 개방하여 유휴전력저장부(40)로의 직류전력 공급이 실시되도록 구성함을 특징으로 한다.At this time, when the power storage amount of the idle power storage unit 40 is less than 20% set as the minimum safety value, the third detection sensor 42 provided in the idle power storage unit 40 transmits a signal to the controller to convert the power. It is characterized in that the solenoid valve 74 on the first power transfer line 71 connected to 30 is opened to supply DC power to the idle power storage unit 40.

또한, 상기 유휴전력저장부(40)의 전력저장량이 안정유지치로 설정된 70％ 이하가 되고 난 후 24시간이 지나게 되면, 상기 24시간 후의 전력변환기(30)의 가동 시 작동부(20) 및 유휴전력저장부(40)로의 직류전력 공급이 동시에 이루어지도록 함을 특징으로 한다.In addition, if 24 hours elapse after the power storage amount of the idle power storage unit 40 becomes 70% or less set as the stable maintenance value, the operation unit 20 and idle when the power converter 30 is operated after 24 hours. It is characterized in that the supply of direct current power to the power storage unit 40 is performed at the same time.

그리고, 상기 전력공급부(10) 및 전력변환기(30)의 작동 정지상태에서 유휴전력저장부(40)의 전력저장량이 안정유지치로 설정된 70％ 이상일 시, 상기 유휴전력저장부(40)를 통해 전기자동차 내의 소량전력사용부의 소비전력이 연결 공급되도록 함을 특징으로 한다.And, when the power storage amount of the idle power storage unit 40 is 70% or more set to a stable maintenance value in the stopped state of the power supply unit 10 and the power converter 30, electricity through the idle power storage unit 40 It is characterized in that the power consumption of the small amount of power consumption in the vehicle is connected and supplied.

상기한 본 발명에 의하면 ESS로 유휴전력을 저장하여 과부하 시에 저장된 유휴전력의 에너지를 사용토록 함으로써 부하 평준하를 통해 전력계통의 운영 최적화를 도모하고, 또한 예비전력을 충분히 확보할 수 있어 배터리의 방전을 예방함으로써 전기자동차의 안정적인 운행이 가능하도록 하는 등의 효과가 있다.According to the present invention as described above, by storing idle power in an ESS and using the energy of the stored idle power during overload, the operation of the power system can be optimized through load leveling, and sufficient reserve power can be secured. By preventing discharge, there is an effect such as enabling the stable operation of the electric vehicle.

도 1 및 도 3는 본 발명에 의한 배터리 방전을 예방할 수 있는 전기자동차의 축전지를 기반으로 하는 ESS 운영시스템의 공정 예시도1 and 3 are diagrams illustrating a process of an ESS operating system based on a storage battery of an electric vehicle capable of preventing battery discharge according to the present invention.

이하 본 발명의 실시를 위한 구체적인 내용을 첨부한 도면을 참조하여 더욱 상세하게 설명한다.It will be described in more detail below with reference to the accompanying drawings specific details for the implementation of the present invention.

본 발명은 ESS로 유휴전력을 저장하여 과부하 시에 저장된 유휴전력의 에너지를 사용토록 함으로써 부하 평준하를 통해 전력계통의 운영 최적화를 도모하고, 또한 예비전력을 충분히 확보할 수 있어 배터리의 방전을 예방함으로써 전기자동차의 안정적인 운행이 가능하도록 한 배터리 방전을 예방할 수 있는 전기자동차의 축전지를 기반으로 하는 ESS 운영시스템에 관한 것으로서 도 1 및 도 3을 참조하여 보면 전력공급부(10), 작동부(20), 전력변환기(30), 유효전력저장부(40) 및 컨트롤러를 포함하여 이루어진다.The present invention aims to optimize the operation of the power system through load leveling by storing idle power in an ESS to use the energy of the stored idle power in the event of an overload, and also to secure sufficient reserve power to prevent battery discharge. It relates to an ESS operating system based on a storage battery of an electric vehicle that can prevent battery discharge that enables stable operation of the electric vehicle. Referring to Figs. 1 and 3, the power supply unit 10 and the operation unit 20 , A power converter 30, an active power storage unit 40, and a controller.

본 발명을 구현하기 위한 전력공급부(10)는 전기자동차 내에서 전력이 소모되는 다수의 작동부(20) 마다에 전력을 공급하기 위한 것이며, 전력공급부(10)로부터 교류전력을 공급 받아 직류전력으로 변환하여 전기자동차 내의 다수 작동부(20) 마다에 공급전달하는 전력변환기(30)가 구비된다.The power supply unit 10 for implementing the present invention is for supplying power to each of the plurality of operation units 20 that consume electric power in the electric vehicle, and receives AC power from the power supply unit 10 to obtain DC power. A power converter 30 that converts and transmits the supply to each of the plurality of operating units 20 in the electric vehicle is provided.

이때, 상기 전력변환기(30)를 거쳐 제1전력이동선(71)을 통해 직류전력을 공급받는 다수 작동부(20)의 회전구동에너지에 의해 상기 전력공급부(10)의 전력이 계속적으로 충전된다.At this time, the power of the power supply unit 10 is continuously charged by the rotational driving energy of the plurality of operation units 20 receiving DC power through the first power transfer line 71 through the power converter 30.

한편, 상기 전력변환기(30)에서 제1전력이동선(71)과 분배된 제2전력이동선(81)을 통해 직류전력을 공급받아 유휴전력을 저장해 두고, 상기 전력공급부(10)의 과부하시 유휴전력을 일부 작동부(20)에 공급전달하는 유휴전력저장부(40)가 구비된다.Meanwhile, the power converter 30 receives DC power through the first power transfer line 71 and the distributed second power transfer line 81 to store idle power, and idle power when the power supply unit 10 is overloaded. An idle power storage unit 40 for supplying and transmitting some of the operating units 20 is provided.

이때, 상기 전력공급부(10)의 제1전력이동선(71) 상에는 작동부(20)로 전달되는 직류전력의 공급 과부하를 감지하는 제1감지센서(72)가 구비되고, 상기 제1감지센서(72)의 과부하 감지 신호 유뮤에 따라 유휴전력저장부(40)의 유휴전력 공급라인을 개폐 제어하는 전자밸브(74)가 구비되며, 상기 전력공급부(10), 전력변환기(30), 유휴전력저장부(40) 및 전자밸브(74)에 연결되어 전체 작동을 제어하는 컨트롤러가 구비된다.At this time, on the first power transfer line 71 of the power supply unit 10, a first detection sensor 72 for detecting a supply overload of DC power delivered to the operation unit 20 is provided, and the first detection sensor ( In accordance with the presence or absence of an overload detection signal of 72), an electromagnetic valve 74 for opening and closing the idle power supply line of the idle power storage unit 40 is provided, and the power supply unit 10, the power converter 30, and the idle power storage A controller connected to the unit 40 and the solenoid valve 74 to control the entire operation is provided.

본 발명은 다른 실시예로서, 전력공급부(10)로부터 교류전력을 공급 받아 직류전력으로 변환하여 전기자동차 내의 다수 작동부(20) 마다에 공급전달하는 전력변환기(30); 상기 전력변환기(30)를 거쳐 제1전력이동선(71)을 통해 직류전력을 공급받는 다수 작동부(20)의 회전구동에너지에 의해 상기 전력공급부(10)의 전력이 계속적으로 충전되고, 상기 전력변환기(30)에서 제1전력이동선(71)과 분배된 제2전력이동선(81)을 통해 직류전력을 공급받아 유휴전력을 저장해 두고, 상기 전력공급부(10)의 전력저장량이 최소안전치로 설정된 30％ 이하가 되면 유휴전력을 일부 작동부(20)에 공급전달하는 유휴전력저장부(40); 상기 전력공급부(10) 내에는 전력저장량을 감지하는 제2감지센서(82)가 구비되고, 상기 제2감지센서(82)의 최소안전치 감지 신호 유뮤에 따라 유휴전력저장부(40)의 유휴전력 공급라인을 개폐 제어하는 전자밸브(74); 상기 전력공급부(10), 전력변환기(30), 유휴전력저장부(40) 및 전자밸브(74)에 연결되어 전체 작동을 제어하는 컨트롤러(50);를 포함하여 이루어지게 구성할 수 있다.According to another embodiment of the present invention, a power converter 30 for receiving AC power from the power supply unit 10 and converting it into DC power is supplied and transmitted to each of the plurality of operating units 20 in the electric vehicle; The power of the power supply unit 10 is continuously charged by the rotational driving energy of the plurality of operation units 20 receiving DC power through the first power transfer line 71 through the power converter 30, and the power The converter 30 receives DC power through the first power transfer line 71 and the distributed second power transfer line 81 to store idle power, and the power storage amount of the power supply unit 10 is set to a minimum safe value. When the percentage is less than the idle power storage unit 40 for supplying and transmitting the idle power to a part of the operation unit 20; In the power supply unit 10, a second detection sensor 82 for detecting the amount of power storage is provided, and the idle power storage unit 40 is idle according to the presence or absence of a minimum safety value detection signal of the second detection sensor 82. An solenoid valve 74 for controlling opening and closing of the power supply line; A controller 50 connected to the power supply unit 10, the power converter 30, the idle power storage unit 40, and the solenoid valve 74 to control the entire operation; may be configured to include.

상기한 본 발명의 배터리 방전을 예방할 수 있는 전기자동차의 축전지를 기반으로 하는 ESS 운영시스템의 작동 설명을 실시예를 들어 설명하면 하기와 같다.An explanation of the operation of the ESS operating system based on the storage battery of an electric vehicle capable of preventing battery discharge of the present invention will be described with reference to examples.

먼저, 작동 일실시예로서 상기 유휴전력저장부(40)의 전력저장량이 최소안전치로 설정된 20％ 이하가 되면 이를 유휴전력저장부(40) 내에 구비된 제3감지센서(42)에서 컨트롤러로 신호를 전달하여 전력변환기(30)와 연결된 제1전력이동선(71) 상의 전자밸브(74)를 개방하여 유휴전력저장부(40)로의 직류전력 공급이 실시되도록 구성한다.First, as an operation example, when the power storage amount of the idle power storage unit 40 is less than 20% set as the minimum safety value, this is signaled from the third detection sensor 42 provided in the idle power storage unit 40 to the controller. By delivering the power converter 30, the electromagnetic valve 74 on the first power transfer line 71 connected to the power converter 30 is opened to supply DC power to the idle power storage unit 40.

작동의 다른 실시예로서 상기 유휴전력저장부(40)의 전력저장량이 안정유지치로 설정된 70％ 이하가 되고 난 후 24시간이 지나게 되면, 상기 24시간 후의 전력변환기(30)의 가동 시 작동부(20) 및 유휴전력저장부(40)로의 직류전력 공급이 동시에 이루어지도록 한다.As another embodiment of operation, when 24 hours elapse after the power storage amount of the idle power storage unit 40 becomes 70% or less set as a stable maintenance value, the operation unit ( 20) and DC power supply to the idle power storage unit 40 are simultaneously performed.

작동의 또 다른 실시예로서 상기 전력공급부(10) 및 전력변환기(30)의 작동 정지상태에서 유휴전력저장부(40)의 전력저장량이 안정유지치로 설정된 70％ 이상일 시, 상기 유휴전력저장부(40)를 통해 전기자동차 내의 소량전력사용부의 소비전력이 연결 공급되도록 한다.As another embodiment of the operation, when the power storage amount of the idle power storage unit 40 is set to a stable maintenance value of 70% or more when the power supply unit 10 and the power converter 30 are stopped in operation, the idle power storage unit ( Through 40), the power consumption of the small amount of power consumption in the electric vehicle is connected and supplied.

상술된 본 발명의 배터리 방전을 예방할 수 있는 전기자동차의 축전지를 기반으로 하는 ESS 운영시스템에 의하면 ESS로 유휴전력을 저장하여 과부하 시에 저장된 유휴전력의 에너지를 사용토록 함으로써 부하 평준하를 통해 전력계통의 운영 최적화를 도모하고, 또한 예비전력을 충분히 확보할 수 있어 배터리의 방전을 예방함으로써 전기자동차의 안정적인 운행이 가능하게 된다.According to the ESS operating system based on the storage battery of an electric vehicle that can prevent the battery discharge of the present invention described above, the power system through load leveling by storing idle power in the ESS and using the energy of the stored idle power during overload. It is possible to optimize the operation of the electric vehicle and to secure sufficient power reserve, thereby preventing the discharge of the battery, thereby enabling stable operation of the electric vehicle.

이상에서 설명한 본 발명은, 도면에 도시된 일실시 예를 참고로 설명되었으나 이는 예시적인 것에 불과하며, 본 기술 분야의 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 타 실시 예가 가능하다는 점을 명확히 하여야 할 것이다. 따라서, 본 발명의 진정한 기술적 보호 범위는 첨부된 청구범위에 의하여 해석되어야 하며, 그와 동등한 범위 내에 있는 모든 기술적 사상은 본 발명의 권리범위에 포함되는 것으로 해석되어야 할 것이다.The present invention described above has been described with reference to an embodiment shown in the drawings, but this is only exemplary, and various modifications and other equivalent embodiments are possible from those of ordinary skill in the art. Should be clarified. Accordingly, the true technical protection scope of the present invention should be interpreted by the appended claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

10 : 전력공급부 20 : 작동부
30 : 전력변환기 40 : 유휴전력저장부
71 : 제1전력이동선 72 : 제1감지센서
81 : 제2전력이동선 82 : 제2감지센서10: power supply unit 20: operation unit
30: power converter 40: idle power storage unit
71: first power transfer line 72: first detection sensor
81: second power transfer line 82: second detection sensor

Claims (5)

배터리 방전을 예방할 수 있는 전기자동차의 축전지를 기반으로 하는 ESS 운영시스템을 구성함에 있어서,
전력공급부(10)로부터 교류전력을 공급 받아 직류전력으로 변환하여 전기자동차 내의 다수 작동부(20) 마다에 공급전달하는 전력변환기(30);
상기 전력변환기(30)를 거쳐 제1전력이동선(71)을 통해 직류전력을 공급받는 다수 작동부(20)의 회전구동에너지에 의해 상기 전력공급부(10)의 전력이 계속적으로 충전되고,
상기 전력변환기(30)에서 제1전력이동선(71)과 분배된 제2전력이동선(81)을 통해 직류전력을 공급받아 유휴전력을 저장해 두고, 상기 전력공급부(10)의 과부하시 유휴전력을 일부 작동부(20)에 공급전달하는 유휴전력저장부(40);
상기 전력공급부(10)의 제1전력이동선(71) 상에는 작동부(20)로 전달되는 직류전력의 공급 과부하를 감지하는 제1감지센서(72)가 구비되고,
상기 제1감지센서(72)의 과부하 감지 신호 유뮤에 따라 유휴전력저장부(40)의 유휴전력 공급라인을 개폐 제어하는 전자밸브(74);
상기 전력공급부(10), 전력변환기(30), 유휴전력저장부(40) 및 전자밸브(74)에 연결되어 전체 작동을 제어하는 컨트롤러;를 포함하여 이루어지는 것을 특징으로 하는 배터리 방전을 예방할 수 있는 전기자동차의 축전지를 기반으로 하는 ESS 운영시스템.
In constructing an ESS operating system based on the storage battery of an electric vehicle that can prevent battery discharge,
A power converter 30 that receives AC power from the power supply unit 10 and converts it into DC power, and supplies and transmits it to each of the plurality of operating units 20 in the electric vehicle;
The power of the power supply unit 10 is continuously charged by the rotational driving energy of the plurality of operation units 20 receiving DC power through the first power transfer line 71 through the power converter 30,
The power converter 30 receives DC power through the first power transfer line 71 and the distributed second power transfer line 81 to store idle power, and when the power supply unit 10 is overloaded, some idle power An idle power storage unit 40 for supplying and transmitting the operation unit 20;
A first detection sensor 72 is provided on the first power transfer line 71 of the power supply unit 10 to detect a supply overload of DC power transmitted to the operation unit 20,
An electromagnetic valve 74 for controlling the opening and closing of the idle power supply line of the idle power storage unit 40 according to the presence or absence of an overload detection signal of the first detection sensor 72;
A controller connected to the power supply unit 10, the power converter 30, the idle power storage unit 40, and the solenoid valve 74 to control the entire operation; ESS operating system based on electric vehicle storage battery.
 배터리 방전을 예방할 수 있는 전기자동차의 축전지를 기반으로 하는 ESS 운영시스템을 구성함에 있어서,
전력공급부(10)로부터 교류전력을 공급 받아 직류전력으로 변환하여 전기자동차 내의 다수 작동부(20) 마다에 공급전달하는 전력변환기(30);
상기 전력변환기(30)를 거쳐 제1전력이동선(71)을 통해 직류전력을 공급받는 다수 작동부(20)의 회전구동에너지에 의해 상기 전력공급부(10)의 전력이 계속적으로 충전되고,
상기 전력변환기(30)에서 제1전력이동선(71)과 분배된 제2전력이동선(81)을 통해 직류전력을 공급받아 유휴전력을 저장해 두고, 상기 전력공급부(10)의 전력저장량이 최소안전치로 설정된 30％ 이하가 되면 유휴전력을 일부 작동부(20)에 공급전달하는 유휴전력저장부(40);
상기 전력공급부(10) 내에는 전력저장량을 감지하는 제2감지센서(82)가 구비되고,
상기 제2감지센서(82)의 최소안전치 감지 신호 유뮤에 따라 유휴전력저장부(40)의 유휴전력 공급라인을 개폐 제어하는 전자밸브(74);
상기 전력공급부(10), 전력변환기(30), 유휴전력저장부(40) 및 전자밸브(74)에 연결되어 전체 작동을 제어하는 컨트롤러(50);를 포함하여 이루어지는 것을 특징으로 하는 배터리 방전을 예방할 수 있는 전기자동차의 축전지를 기반으로 하는 ESS 운영시스템.
In constructing an ESS operating system based on the storage battery of an electric vehicle that can prevent battery discharge,
A power converter 30 that receives AC power from the power supply unit 10 and converts it into DC power, and supplies and transmits it to each of the plurality of operating units 20 in the electric vehicle;
The power of the power supply unit 10 is continuously charged by the rotational driving energy of the plurality of operation units 20 receiving DC power through the first power transfer line 71 through the power converter 30,
The power converter 30 receives DC power through the first power transfer line 71 and the distributed second power transfer line 81 to store idle power, and the power storage amount of the power supply unit 10 is set to a minimum safety value. An idle power storage unit 40 for supplying and transmitting idle power to a part of the operation unit 20 when the set 30% or less;
A second detection sensor 82 for sensing an amount of power storage is provided in the power supply unit 10,
An electromagnetic valve 74 for opening and closing the idle power supply line of the idle power storage unit 40 according to the presence or absence of the minimum safety value detection signal of the second detection sensor 82;
The power supply unit 10, the power converter 30, the idle power storage unit 40, and a controller 50 connected to the solenoid valve 74 to control the entire operation; ESS operation system based on preventable electric vehicle storage battery.
 제1항 또는 제2항에 있어서,
상기 유휴전력저장부(40)의 전력저장량이 최소안전치로 설정된 20％ 이하가 되면 이를 유휴전력저장부(40) 내에 구비된 제3감지센서(42)에서 컨트롤러로 신호를 전달하여 전력변환기(30)와 연결된 제1전력이동선(71) 상의 전자밸브(74)를 개방하여 유휴전력저장부(40)로의 직류전력 공급이 실시되도록 구성함을 특징으로 하는 배터리 방전을 예방할 수 있는 전기자동차의 축전지를 기반으로 하는 ESS 운영시스템.
The method according to claim 1 or 2,
When the power storage amount of the idle power storage unit 40 reaches 20% or less set as the minimum safe value, the third detection sensor 42 provided in the idle power storage unit 40 transmits a signal to the controller to transmit the power converter 30 A storage battery of an electric vehicle capable of preventing battery discharge, characterized in that it is configured to supply DC power to the idle power storage unit 40 by opening the solenoid valve 74 on the first power transfer line 71 connected to ). Based ESS operating system.
 제3항에 있어서,
상기 유휴전력저장부(40)의 전력저장량이 안정유지치로 설정된 70％ 이하가 되고 난 후 24시간이 지나게 되면, 상기 24시간 후의 전력변환기(30)의 가동 시 작동부(20) 및 유휴전력저장부(40)로의 직류전력 공급이 동시에 이루어지도록 함을 특징으로 하는 배터리 방전을 예방할 수 있는 전기자동차의 축전지를 기반으로 하는 ESS 운영시스템.
The method of claim 3,
When 24 hours elapse after the power storage amount of the idle power storage unit 40 becomes 70% or less set as the stable maintenance value, the operation unit 20 and the idle power storage when the power converter 30 is operated after 24 hours. An ESS operating system based on a storage battery of an electric vehicle capable of preventing battery discharge, characterized in that the supply of DC power to the unit 40 is made at the same time.
 제4항에 있어서,
상기 전력공급부(10) 및 전력변환기(30)의 작동 정지상태에서 유휴전력저장부(40)의 전력저장량이 안정유지치로 설정된 70％ 이상일 시, 상기 유휴전력저장부(40)를 통해 전기자동차 내의 소량전력사용부의 소비전력이 연결 공급되도록 함을 특징으로 하는 배터리 방전을 예방할 수 있는 전기자동차의 축전지를 기반으로 하는 ESS 운영시스템.
The method of claim 4,
When the power supply unit 10 and the power converter 30 are stopped and the power storage amount of the idle power storage unit 40 is set to a stable maintenance value of 70% or more, the idle power storage unit 40 is used in the electric vehicle. An ESS operating system based on an electric vehicle's storage battery that can prevent battery discharge, characterized in that the power consumption of a small amount of power consumption is connected and supplied.
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