WO2019135488A1 - Emergency disconnect circuit for energy storage system - Google Patents

Emergency disconnect circuit for energy storage system Download PDF

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Publication number
WO2019135488A1
WO2019135488A1 PCT/KR2018/014101 KR2018014101W WO2019135488A1 WO 2019135488 A1 WO2019135488 A1 WO 2019135488A1 KR 2018014101 W KR2018014101 W KR 2018014101W WO 2019135488 A1 WO2019135488 A1 WO 2019135488A1
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WO
WIPO (PCT)
Prior art keywords
relay coil
contact
circuit
energy storage
emergency shut
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PCT/KR2018/014101
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French (fr)
Korean (ko)
Inventor
박상수
남형규
Original Assignee
삼성에스디아이(주)
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Publication of WO2019135488A1 publication Critical patent/WO2019135488A1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • 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
    • 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
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
    • 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
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies

Definitions

  • the present invention relates to an emergency shut-off circuit for an energy storage system that can operate smoothly in emergency, power failure and recovery situations.
  • the photovoltaic power generation system is a system that converts DC power generated by solar cells into AC power, and supplies power to the load in conjunction with the system.
  • the generated power of the solar cell is smaller than the power consumption of the load, the power of the solar cell is consumed in the load, and the system supplies the shortage.
  • surplus power consumed in the load among the generated power of the solar cell is supplied to the system as reverse current power.
  • the power storage system is a system that stores surplus power generated in the nighttime from the system in the energy storage device and uses it in the daytime.
  • a power storage system is a system that suppresses the peak of the generated power in the daytime and utilizes the nighttime power.
  • the power storage system is advantageous in that it can be installed in a general customer space by reducing the space by using a storage battery as an energy storage device and power can be supplied from a battery when a power failure occurs.
  • the energy storage system (Energy Storage System) is a concept that blends solar power system and power storage system. It stores surplus power of solar cell and system and can supply to load. In case of power outage, Can be supplied.
  • the present invention provides an emergency shut-off circuit for an energy storage system that can operate smoothly for emergency, power failure and recovery situations.
  • An emergency shut-off circuit for an energy storage device is an emergency shut-off circuit connected to a wiring located between a power system and an energy storage system, the emergency shut-off circuit comprising: Emergency shut off switch; A first relay coil connected in series with the emergency shut-off switch; A second relay coil connected in parallel to the emergency shut-off switch and the first relay coil; A first contact located in a second branch line branched from the wiring and interlocked with the first relay coil; A second contact interlocked with the second relay coil and connected in series with the first contact; And a breaker that is electrically connected to the second branch line and operates when no current flows through the second branch line.
  • the emergency shut-off switch is normally closed and can be opened by an operator.
  • the first contact maintains a closed state when a current is applied to the first relay coil, and can be opened when the current is interrupted.
  • the second contact maintains a closed state when a current is applied to the second relay coil, and can be opened when the current is interrupted.
  • the second relay coil and the second contact may be configured as a time relay so that the second contact may be closed after a predetermined delay time when a current flows through the second relay coil.
  • the first contact and the second contact are operated to close, and the second contact is closed after the set delay time Lt; / RTI >
  • the breaker may not operate when the power failure and the power failure occur.
  • a classifier may be further provided between the second branch line and the circuit breaker.
  • the classifier may provide a signal corresponding to the cut-off to the breaker when no current flows through the second branch line.
  • the emergency shut-off circuit for an energy storage device can provide the convenience of management while protecting the safety of an operator in the event of an emergency situation, power failure, or disconnection.
  • the emergency shut-off circuit for an energy storage device is capable of shutting off through a circuit breaker in an emergency situation and preventing the circuit breaker from operating when a power failure occurs.
  • FIG. 1 is a block diagram illustrating the location of an emergency shutdown circuit for an energy storage device in accordance with an embodiment of the present invention.
  • FIG. 2 is a circuit diagram of an emergency shut-off circuit for an energy storage device according to an embodiment of the present invention.
  • 3A is a time chart for explaining an emergency situation and recovery operation of the emergency shut-off circuit for an energy storage device according to the embodiment of the present invention.
  • 3B is a circuit diagram for explaining an emergency situation and recovery operation of the emergency shut-off circuit for an energy storage device according to the embodiment of the present invention.
  • FIG. 4A is a time chart for explaining the power interruption and recharge operation of the emergency shut-off circuit for an energy storage device according to the embodiment of the present invention.
  • FIG. 4B is a circuit diagram for explaining the operation of the emergency shut-off circuit for an energy storage device according to the embodiment of the present invention.
  • 5A is a time chart for explaining wiring disconnection and recovery operation of the emergency shutdown circuit for an energy storage device according to the embodiment of the present invention.
  • FIG. 5B is a circuit diagram for explaining the wire disconnection and recovery operation of the emergency shutdown circuit for an energy storage device according to the embodiment of the present invention.
  • 1 is a block diagram illustrating the location of an emergency shutdown circuit for an energy storage device in accordance with an embodiment of the present invention.
  • 2 is a circuit diagram of an emergency shut-off circuit for an energy storage device according to an embodiment of the present invention.
  • an emergency shutdown circuit 100 for an energy storage system is located between a power system 10 and an energy storage device 20.
  • the emergency shut-off circuit 100 allows electric power to be applied from the power system 10 to the energy storage device 20 at normal times. However, the emergency shut-off circuit 100 blocks the power of the power system 10 from being applied to the energy storage device 20 when an emergency situation or a power failure occurs, can do.
  • the specific configuration of the emergency shut-off circuit 100 will be described with reference to FIG.
  • the wiring connected to the emergency shut-off circuit 100 from the power system 10 may be composed of three-phase four wires.
  • the emergency cut-off circuit 100 includes an emergency shut-off switch 110 and a first relay coil 120 (X1) connected in series to a branch line and having a first branch line L1 branched from two wires of the wire, . ≪ / RTI > Also, the emergency shutoff switch 110 and the second relay 130 (T1) connected in parallel to the first relay coil 120 may be included.
  • the emergency shut-off switch 110 remains normally closed and can be opened if there is an emergency. Also, the emergency shut-off switch 110 can be operated manually by an operator. As a representative example in which the emergency shut-off switch 110 is opened, there may be a case of electric shock, short-circuit, fire or the like. In this case, the operator may open the emergency shut-off switch 110 to prevent current from flowing to the first relay coil 120 in the first branch line L1 including the emergency cut-off switch 110. [ Therefore, as will be described later, the first contact 121 connected to the first relay coil 120 is opened so that current does not flow through the classifier 140 connected to the first relay coil 120, (Metal Clad Circuit Breaker 150) connected to the switch 140 may block the wiring.
  • the current flow is controlled by the on-off operation of the emergency cut-off switch 110.
  • a first contact 121 connected to the first relay coil 120 maintains the closed state when a current flows through the first relay coil 120 and is connected to the first relay coil 120. [ It can be open when no current flows. Accordingly, the current of the second branch line L2 to which the first contact 121 is connected can be controlled, and the operation of the classifier 140 can be controlled.
  • the second relay coil 130 is connected in parallel with the emergency shut-off switch 110 and the first relay coil 120 in the first branch line L1.
  • the second relay coil 130 includes a second contact 131 connected thereto and the second contact 131 is located in the second branch line L2. Therefore, the current of the second branch line (L2) can be controlled by the current of the second relay coil (130).
  • the second relay coil 130 may perform the operation of closing the second contact 131 again after a predetermined time, for example, 10 [ms]. Thereby, it is possible to have an advantage that the operator does not need to operate the circuit again when the power is restored.
  • the sorter 140 is located in a second branch line L2 branched at the middle of the wiring between the power system 10 and the energy storage device 20. [ At this time, the second branch line (L2)
  • the classifier 140 is connected to the circuit breaker 150 for opening and closing the wiring.
  • the circuit breaker 150 may be a conventional Metal Clad Circuit Breaker and may detect a signal of the classifier 140, for example, a voltage value applied to a specific resistor in the classifier 140 Or the operation can be controlled through the current value.
  • the breaker (150) When the current is applied to the second branch line (L2) including the classifier (140), the breaker (150) is kept closed and when the current is not applied to the second branch line (150) is opened. Therefore, the breaker 150 can operate as the presence or absence of current flowing in the classifier 140.
  • 3A is a time chart for explaining an emergency situation and recovery operation of the emergency shut-off circuit for an energy storage device according to the embodiment of the present invention.
  • 3B is a circuit diagram for explaining an emergency situation and recovery operation of the emergency shut-off circuit for an energy storage device according to the embodiment of the present invention.
  • the operator opens the emergency shut-off switch 110. Accordingly, the current (1) flowing through the emergency shut-off switch 110 in the first branch line L1 is cut off. Accordingly, the current flowing through the first relay coil 120 is also cut off, and thus the first contact 121 is opened. However, in this case, the current (2) flowing in the second relay coil 130 may still flow, so that the second contact 131 can be kept closed.
  • the current flowing through the second branch line L2 is cut off. Accordingly, no current is applied to the classifier 140, and the breaker 150 is finally operated, so that the current of the wiring can be cut off.
  • the operator when recovering from an emergency such as an electric shock, a short circuit or a fire, the operator can close the emergency shut-off switch 110 again after the final confirmation, 1 contact 121 is closed, so that the emergency shut-off circuit 100 for the energy storage device according to the embodiment of the present invention can perform normal operation.
  • an emergency such as an electric shock, a short circuit or a fire
  • FIG. 4A is a time chart for explaining the power interruption and recharge operation of the emergency shut-off circuit for an energy storage device according to the embodiment of the present invention.
  • FIG. 4B is a circuit diagram for explaining the operation of the emergency shut-off circuit for an energy storage device according to the embodiment of the present invention.
  • the second relay coil 130 and the second contact 131 may operate as a timer relay. That is, the second contact 131 may perform an operation of closing the first contact 121 by a predetermined time (for example, 10 [ms]). By such an operation, it is possible to prevent a malfunction that may occur in a repetitive case, thereby improving the reliability. Also, this delay time is sufficiently small and may not affect the efficiency of the actual energy.
  • FIG. 5A is a time chart for explaining wiring disconnection and recovery operation of the emergency shutdown circuit for an energy storage device according to the embodiment of the present invention.
  • FIG. 5B is a circuit diagram for explaining the wire disconnection and recovery operation of the emergency shutdown circuit for an energy storage device according to the embodiment of the present invention.
  • FIG. 5A is a time chart for explaining wiring disconnection and recovery operation of the emergency shutdown circuit for an energy storage device according to the embodiment of the present invention.
  • FIG. 5B is a circuit diagram for explaining the wire disconnection and recovery operation of the emergency shutdown circuit for an energy storage device according to the embodiment of the present invention.
  • the emergency shut-off circuit 100 for an energy storage device can provide the convenience of management while protecting the safety of the operator in the event of an emergency situation, power failure, or disconnection.
  • the emergency shut-off circuit 100 for an energy storage device according to an embodiment of the present invention is capable of shutting down through the circuit breaker 150 in an emergency situation and preventing the circuit breaker 150 from operating when a power failure occurs, The breaker 150 can be re-inserted.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Stand-By Power Supply Arrangements (AREA)
  • Protection Of Static Devices (AREA)

Abstract

Disclosed is an emergency disconnect circuit for an energy storage system, capable of being smoothly operated during power outages and in recovery situations, respectively. For example, disclosed is an emergency disconnect circuit connected to wiring positioned between a power grid and an energy storage system, the emergency disconnect circuit comprising: an emergency disconnect switch, positioned in a first division line divided from the wiring, capable of being opened by an operator; a first relay coil connected in series with the emergency disconnect switch; a second relay coil connected in parallel to the emergency disconnect switch and the first relay coil; a first contact, positioned in a second division line divided from the wiring, cooperating with the first relay coil; a second contact, connected in series with the first contact, cooperating with the second relay coil; and a breaker, electrically connected to the second division line, being operated when no current flows through the second division line.

Description

에너지 저장 시스템용 비상 차단 회로Emergency shut-off circuit for energy storage system
본 발명은 비상, 정전 및 복구 상황에 대해 각각 원활하게 동작할 수 있는 에너지 저장 시스템용 비상 차단 회로에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an emergency shut-off circuit for an energy storage system that can operate smoothly in emergency, power failure and recovery situations.
태양광 발전 시스템은 태양 전지가 발전한 직류 전력을 교류 전력으로 변환하고, 이것을 계통에 연계하여 부하에 전력을 공급하는 시스템이다. 태양 전지의 발전 전력이 부하의 소비 전력보다 작은 경우 태양 전지의 전력은 부하에서 모두 소비되고, 계통에서는 그 부족분을 공급하게 된다. 그리고 태양 전지의 발전 전력이 부하의 소비 전력보다 큰 경우 태양 전지의 발전 전력 중 부하에서 소비되고 남은 잉여 전력이 계통에 역조류 전력으로 공급된다.The photovoltaic power generation system is a system that converts DC power generated by solar cells into AC power, and supplies power to the load in conjunction with the system. When the generated power of the solar cell is smaller than the power consumption of the load, the power of the solar cell is consumed in the load, and the system supplies the shortage. And, when the generated power of the solar cell is larger than the power consumption of the load, surplus power consumed in the load among the generated power of the solar cell is supplied to the system as reverse current power.
한편, 전력 저장 시스템은 계통으로부터 야간에 발생한 잉여 전력을 에너지 저장 장치에 저장하고, 주간에 이것을 이용하는 시스템이다. 이러한 전력 저장 시스템은 주간의 발전 전력의 피크를 억제하고, 야간 전력을 활용하는 시스템이다. 전력 저장 시스템은 에너지 저장 장치로서 축전지를 사용함으로써 공간을 줄여 일반 수용가 내에 설치할 수 있고, 정전시 축전지로부터 전력 공급이 가능한 장점을 갖는다.On the other hand, the power storage system is a system that stores surplus power generated in the nighttime from the system in the energy storage device and uses it in the daytime. Such a power storage system is a system that suppresses the peak of the generated power in the daytime and utilizes the nighttime power. The power storage system is advantageous in that it can be installed in a general customer space by reducing the space by using a storage battery as an energy storage device and power can be supplied from a battery when a power failure occurs.
에너지 저장 시스템(Energy Storage System)은 태양광 발전 시스템과 전력 저장 시스템을 융화시킨 개념으로, 태양 전지 및 계통의 잉여 전력을 저장하고 있다가 부하에 공급할 수 있으며, 정전 등의 경우에도 부하에 안정적인 전력을 공급할 수 있는 장점을 갖는다.The energy storage system (Energy Storage System) is a concept that blends solar power system and power storage system. It stores surplus power of solar cell and system and can supply to load. In case of power outage, Can be supplied.
본 발명은 비상, 정전 및 복구 상황에 대해 각각 원활하게 동작할 수 있는 에너지 저장 시스템용 비상 차단 회로를 제공한다.The present invention provides an emergency shut-off circuit for an energy storage system that can operate smoothly for emergency, power failure and recovery situations.
본 발명에 따른 에너지 저장 장치용 비상 차단 회로는 전력 계통과 에너지 저장 시스템의 사이에 위치한 배선에 연결된 비상 차단 회로에 있어서, 상기 배선으로부터 분기된 제 1 분기 라인에 위치하고, 작업자에 의해 개방될 수 있는 비상 차단 스위치; 상기 비상 차단 스위치와 직렬로 연결된 제 1 릴레이 코일; 상기 비상 차단 스위치 및 제 1 릴레이 코일에 대해 병렬로 연결된 제 2 릴레이 코일; 상기 배선으로부터 분기된 제 2 분기 라인에 위치하고, 상기 제 1 릴레이 코일에 연동되는 제 1 접점; 상기 제 2 릴레이 코일에 연동되고 상기 제 1 접점과 직렬로 연결된 제 2 접점; 및 상기 제 2 분기 라인에 전기적으로 연결되어, 상기 제 2 분기 라인에 전류가 흐르지 않을 때 동작하는 차단기를 포함할 수 있다.An emergency shut-off circuit for an energy storage device according to the present invention is an emergency shut-off circuit connected to a wiring located between a power system and an energy storage system, the emergency shut-off circuit comprising: Emergency shut off switch; A first relay coil connected in series with the emergency shut-off switch; A second relay coil connected in parallel to the emergency shut-off switch and the first relay coil; A first contact located in a second branch line branched from the wiring and interlocked with the first relay coil; A second contact interlocked with the second relay coil and connected in series with the first contact; And a breaker that is electrically connected to the second branch line and operates when no current flows through the second branch line.
여기서, 상기 비상 차단 스위치는 평상시 닫힌 상태를 유지하고, 작업자에 의해 개방가능할 수 있다.Here, the emergency shut-off switch is normally closed and can be opened by an operator.
그리고 상기 제 1 접점은 상기 제 1 릴레이 코일에 전류가 인가될 때 닫힌 상태를 유지하고, 전류가 차단될 때 개방될 수 있다.And the first contact maintains a closed state when a current is applied to the first relay coil, and can be opened when the current is interrupted.
또한, 상기 제 2 접점은 상기 제 2 릴레이 코일에 전류가 인가될 때 닫힌 상태를 유지하고, 전류가 차단될 때 개방될 수 있다.Further, the second contact maintains a closed state when a current is applied to the second relay coil, and can be opened when the current is interrupted.
또한, 상기 제 2 릴레이 코일 및 제 2 접점은 타임 릴레이(time relay)로 구성되어, 상기 제 2 릴레이 코일에 전류가 흐를 때 설정된 지연 시간 이후 상기 제 2 접점이 닫히도록 동작할 수 있다.The second relay coil and the second contact may be configured as a time relay so that the second contact may be closed after a predetermined delay time when a current flows through the second relay coil.
또한, 비상 상황에서 상기 비상 차단 스위치가 개방된 이후, 상기 작업자에 의해 다시 닫히게 되면, 상기 제 1 릴레이 코일 및 제 2 릴레이 코일에 전류가 인가되어, 상기 제 1 접점 및 제 2 접점이 닫히도록 동작될 수 있다.In addition, in the emergency situation, when the emergency shutoff switch is opened and then closed again by the operator, current is applied to the first relay coil and the second relay coil so that the first contact and the second contact are closed .
또한, 정전 상황에서 복전될 때, 상기 제 1 릴레이 코일 및 제 2 릴레이 코일에 전류가 인가되면, 상기 제 1 접점 및 제 2 접점은 닫히도록 동작하되, 상기 제 2 접점은 설정된 지연 시간 이후에 닫히도록 동작될 수 있다.Also, when a current is applied to the first relay coil and the second relay coil when the power is restored in a power failure situation, the first contact and the second contact are operated to close, and the second contact is closed after the set delay time Lt; / RTI >
또한, 상기 정전 및 복전시, 상기 차단기는 동작하지 않을 수 있다.In addition, the breaker may not operate when the power failure and the power failure occur.
또한, 상기 제 2 분기 라인과 상기 차단기의 사이에는 분류기가 더 형성될 수 있다.Further, a classifier may be further provided between the second branch line and the circuit breaker.
또한, 상기 분류기는 상기 제 2 분기 라인에 전류가 흐르지 않을 때 상기 차단기에 대해 배선 차단에 대응되는 신호를 제공할 수 있다.In addition, the classifier may provide a signal corresponding to the cut-off to the breaker when no current flows through the second branch line.
본 발명에 의한 에너지 저장 장치용 비상 차단 회로는 비상 상황, 정전 및 단선과 같은 상황의 발생시 작업자의 안전을 보호하면서도, 관리의 편의성을 제공할 수 있다.The emergency shut-off circuit for an energy storage device according to the present invention can provide the convenience of management while protecting the safety of an operator in the event of an emergency situation, power failure, or disconnection.
특히, 본 발명의 실시예에 따른 에너지 저장 장치용 비상 차단 회로는 비상 상황에서 차단기를 통한 차단이 가능하고, 정전 발생시 차단기가 동작하지 않도록 하여 정전 복구시 용이하게 차단기가 재투입될 수 있다.In particular, the emergency shut-off circuit for an energy storage device according to an embodiment of the present invention is capable of shutting off through a circuit breaker in an emergency situation and preventing the circuit breaker from operating when a power failure occurs.
도 1은 본 발명의 실시예에 따른 에너지 저장 장치용 비상 차단 회로의 위치를 도시한 블록도이다.1 is a block diagram illustrating the location of an emergency shutdown circuit for an energy storage device in accordance with an embodiment of the present invention.
도 2는 본 발명의 실시예에 따른 에너지 저장 장치용 비상 차단 회로의 회로도이다.2 is a circuit diagram of an emergency shut-off circuit for an energy storage device according to an embodiment of the present invention.
도 3a는 본 발명의 실시예에 따른 에너지 저장 장치용 비상 차단 회로의 비상 상황 및 복구 동작을 설명하기 위한 타임차트이다.3A is a time chart for explaining an emergency situation and recovery operation of the emergency shut-off circuit for an energy storage device according to the embodiment of the present invention.
도 3b는 본 발명의 실시예에 따른 에너지 저장 장치용 비상 차단 회로의 비상 상황 및 복구 동작을 설명하기 위한 회로도이다.3B is a circuit diagram for explaining an emergency situation and recovery operation of the emergency shut-off circuit for an energy storage device according to the embodiment of the present invention.
도 4a는 본 발명의 실시예에 따른 에너지 저장 장치용 비상 차단 회로의 정전 및 복전 동작을 설명하기 위한 타임차트이다.FIG. 4A is a time chart for explaining the power interruption and recharge operation of the emergency shut-off circuit for an energy storage device according to the embodiment of the present invention.
도 4b는 본 발명의 실시예에 따른 에너지 저장 장치용 비상 차단 회로의 정전 및 복전 동작을 설명하기 위한 회로도이다.FIG. 4B is a circuit diagram for explaining the operation of the emergency shut-off circuit for an energy storage device according to the embodiment of the present invention. FIG.
도 5a는 본 발명의 실시예에 따른 에너지 저장 장치용 비상 차단 회로의 배선 단선 및 복구 동작을 설명하기 위한 타임차트이다.5A is a time chart for explaining wiring disconnection and recovery operation of the emergency shutdown circuit for an energy storage device according to the embodiment of the present invention.
도 5b는 본 발명의 실시예에 따른 에너지 저장 장치용 비상 차단 회로의 배선 단선 및 복구 동작을 설명하기 위한 회로도이다.FIG. 5B is a circuit diagram for explaining the wire disconnection and recovery operation of the emergency shutdown circuit for an energy storage device according to the embodiment of the present invention. FIG.
[도면의 주요 부분에 대한 부호의 설명]DESCRIPTION OF THE REFERENCE NUMERALS
100; 에너지 저장 장치용 비상 차단 회로100; Emergency shut-off circuit for energy storage
110; 비상 차단 스위치 120; 제 1 릴레이 코일110; Emergency shut-off switch 120; The first relay coil
121; 제 1 접점 130; 제 2 릴레이 코일121; A first contact 130; The second relay coil
131; 제 2 접점 140; 분류기131; A second contact 140; Classifier
150; 차단기 10; 전력 계통150; A breaker 10; Power system
20; 에너지 저장 시스템 L1; 제 1 분기 라인20; Energy storage system L1; First quarter line
L2; 제 2 분기 라인L2; Second branch line
본 발명이 속하는 기술분야에 있어서 통상의 지식을 가진 자가 용이하게 실시할 수 있을 정도로 본 발명의 바람직한 실시예를 도면을 참조하여 상세하게 설명하면 다음과 같다.DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily carry out the present invention.
도 1은 본 발명의 실시예에 따른 에너지 저장 장치용 비상 차단 회로의 위치를 도시한 블록도이다. 도 2는 본 발명의 실시예에 따른 에너지 저장 장치용 비상 차단 회로의 회로도이다.1 is a block diagram illustrating the location of an emergency shutdown circuit for an energy storage device in accordance with an embodiment of the present invention. 2 is a circuit diagram of an emergency shut-off circuit for an energy storage device according to an embodiment of the present invention.
먼저, 도 1을 참조하면, 본 발명의 실시예에 따른 에너지 저장 시스템용 비상 차단 회로(100)는 전력 계통(10)과 에너지 저장 장치(20)의 사이에 위치한다.Referring first to FIG. 1, an emergency shutdown circuit 100 for an energy storage system according to an embodiment of the present invention is located between a power system 10 and an energy storage device 20.
또한, 상기 비상 차단 회로(100)는 평상시에는 전력 계통(10)으로부터 에너지 저장 장치(20)에 전력이 인가될 수 있도록 한다. 다만, 상기 비상 차단 회로(100)는 비상 상황 또는 정전 발생시 상기 전력 계통(10)의 전력이 상기 에너지 저장 장치(20)에 인가되지 않도록 차단하며, 이후 복구시 상기 전력이 다시 인가될 수 있도록 동작 할 수 있다. 상기 비상 차단 회로(100)의 구체적인 구성은 도 2를 참조하여 설명하도록 한다.In addition, the emergency shut-off circuit 100 allows electric power to be applied from the power system 10 to the energy storage device 20 at normal times. However, the emergency shut-off circuit 100 blocks the power of the power system 10 from being applied to the energy storage device 20 when an emergency situation or a power failure occurs, can do. The specific configuration of the emergency shut-off circuit 100 will be described with reference to FIG.
도 2를 참조하면, 먼저 전력 계통(10)으로부터 상기 비상 차단 회로(100)에 연결된 배선은 3상 4선으로 구성될 수 있다. 그리고 상기 비상 차단 회로(100)는 상기 배선 중 2선에서 분기된 제 1 분기 라인(L1)을 구비하며, 분기라인에 직렬로 연결된 비상 차단 스위치(110) 및 제 1 릴레이 코일(120, X1)을 포함할 수 있다. 또한, 상기 비상 차단 스위치(110) 및 제 1 릴레이 코일(120)에 대해 병렬로 연결된 제 2 릴레이(130, T1)이 포함될 수 있다.Referring to FIG. 2, the wiring connected to the emergency shut-off circuit 100 from the power system 10 may be composed of three-phase four wires. The emergency cut-off circuit 100 includes an emergency shut-off switch 110 and a first relay coil 120 (X1) connected in series to a branch line and having a first branch line L1 branched from two wires of the wire, . ≪ / RTI > Also, the emergency shutoff switch 110 and the second relay 130 (T1) connected in parallel to the first relay coil 120 may be included.
상기 비상 차단 스위치(110)는 평상시 닫힌 상태를 유지하고 있다가, 비상 상황이 있을 경우 열린 상태가 될 수 있다. 또한, 상기 비상 차단 스위치(110)는 작업자의 수작업에 의해 동작될 수 있다. 상기 비상 차단 스위치(110)가 열린 상태가 되는 대표적인 예로서, 감전, 단락, 화재 등의 경우가 있을 수 있다. 이 경우, 작업자는 상기 비상 차단 스위치(110)를 개방하여, 상기 비상 차단 스위치(110)가 포함된 제 1 분기 라인(L1)에서 제 1 릴레이 코일(120)에 전류가 흐르지 못하도록 할 수 있다. 따라서, 이에 따라 후술할 것처럼, 상기 제 1 릴레이 코일(120)에 연결된 제 1 접점(121)이 개방되도록 하여, 이에 연결된 분류기(140, shunt, Q1)에 전류가 흐르지 않도록 하고, 이에 따라 상기 분류기(140)에 연결된 차단기(150, Metal Clad Circuit Breaker)가 배선을 차단하도록 할 수 있다.The emergency shut-off switch 110 remains normally closed and can be opened if there is an emergency. Also, the emergency shut-off switch 110 can be operated manually by an operator. As a representative example in which the emergency shut-off switch 110 is opened, there may be a case of electric shock, short-circuit, fire or the like. In this case, the operator may open the emergency shut-off switch 110 to prevent current from flowing to the first relay coil 120 in the first branch line L1 including the emergency cut-off switch 110. [ Therefore, as will be described later, the first contact 121 connected to the first relay coil 120 is opened so that current does not flow through the classifier 140 connected to the first relay coil 120, (Metal Clad Circuit Breaker 150) connected to the switch 140 may block the wiring.
상기 제 1 릴레이 코일(120)은 상기 비상 차단 스위치(110)와 직렬로 연결되어 있기 때문에, 상기 비상 차단 스위치(110)의 온오프 동작에 의해 전류 흐름이 제어된다. 또한, 상기 제 1 릴레이 코일(120)에는 연결된 제 1 접점(121)이 존재하여, 상기 제 1 릴레이 코일(120)에 전류가 흐를 때 닫힌 상태를 유지하고, 상기 제 1 릴레이 코일(120)에 전류가 흐르지 않을 때 열린 상태가 될 수 있다. 따라서, 상기 제 1 접점(121)이 연결되어 있는 제 2 분기 라인(L2)의 전류가 제어되고, 상기 분류기(140)의 동작이 제어될 수 있다.Since the first relay coil 120 is connected in series with the emergency shut-off switch 110, the current flow is controlled by the on-off operation of the emergency cut-off switch 110. A first contact 121 connected to the first relay coil 120 maintains the closed state when a current flows through the first relay coil 120 and is connected to the first relay coil 120. [ It can be open when no current flows. Accordingly, the current of the second branch line L2 to which the first contact 121 is connected can be controlled, and the operation of the classifier 140 can be controlled.
상기 제 2 릴레이 코일(130)은 상기 제 1 분기 라인(L1)에서 상기 비상 차단 스위치(110) 및 제 1 릴레이 코일(120)과 병렬로 연결된다. 상기 제 2 릴레이 코일(130)은 연결된 제 2 접점(131)을 포함하고, 상기 제 2 접점(131)은 상기 제 2 분기 라인(L2)에 위치한다. 따라서, 상기 제 2 릴레이 코일(130)의 전류에 의해 상기 제 2 분기 라인(L2)의 전류가 제어될 수 있다. 특히, 상기 제 2 릴레이 코일(130)은 정전 이후에 복전된 경우, 설정된 시간 예를 들어 10[ms] 이후 다시 상기 제 2 접점(131)을 닫는 동작을 수행할 수 있다. 이에 따라, 복전이 되었을 때, 작업자가 다시 회로를 동작시키지 않아도 되는 장점을 가질 수 있다.The second relay coil 130 is connected in parallel with the emergency shut-off switch 110 and the first relay coil 120 in the first branch line L1. The second relay coil 130 includes a second contact 131 connected thereto and the second contact 131 is located in the second branch line L2. Therefore, the current of the second branch line (L2) can be controlled by the current of the second relay coil (130). In particular, when the second relay coil 130 is recovered after the power failure, the second relay coil 130 may perform the operation of closing the second contact 131 again after a predetermined time, for example, 10 [ms]. Thereby, it is possible to have an advantage that the operator does not need to operate the circuit again when the power is restored.
상기 분류기(140)는 상기 전력 계통(10)과 에너지 저장 장치(20) 사이의 배선 중간에서 분기된 제 2 분기 라인(L2)에 위치한다. 이 때, 상기 제 2 분기 라인(L2)은 The sorter 140 is located in a second branch line L2 branched at the middle of the wiring between the power system 10 and the energy storage device 20. [ At this time, the second branch line (L2)
상기 분류기(140, shunt)는 상기 배선에 대해 개폐를 담당하는 상기 차단기(150)와 연결되어 있다. 여기서, 상기 차단기(150)는 통상의 복합 금속식 회로 차단기(Metal Clad Circuit Breaker)로 구성될 수 있으며, 상기 분류기(140)의 신호, 예를 들어, 분류기(140) 내 특정 저항에 걸리는 전압값 또는 전류값을 통해 동작이 제어될 수 있다.The classifier 140 is connected to the circuit breaker 150 for opening and closing the wiring. The circuit breaker 150 may be a conventional Metal Clad Circuit Breaker and may detect a signal of the classifier 140, for example, a voltage value applied to a specific resistor in the classifier 140 Or the operation can be controlled through the current value.
상기 분류기(140)를 포함한 상기 제 2 분기 라인(L2)에 전류가 인가될 때 상기 차단기(150)는 닫힌 상태를 유지하고, 상기 제 2 분기 라인(L2)에 전류가 인가되지 않을 때 상기 차단기(150)는 개방된다. 따라서, 상기 분류기(140)에 흐르는 전류의 유무로서 상기 차단기(150)가 동작할 수 있다.When the current is applied to the second branch line (L2) including the classifier (140), the breaker (150) is kept closed and when the current is not applied to the second branch line (150) is opened. Therefore, the breaker 150 can operate as the presence or absence of current flowing in the classifier 140.
이하에서는 본 발명의 실시예에 따른 에너지 저장 장치용 비상 차단 회로(100)의 각 상황별 동작을 세부적으로 설명하도록 한다. 그리고 그 중 먼저, 비상 상황 및 복구시의 동작을 설명하도록 한다.Hereinafter, operation of each state of the emergency shut-off circuit 100 for an energy storage device according to an embodiment of the present invention will be described in detail. First of all, explain the emergency situation and the operation at the time of recovery.
도 3a는 본 발명의 실시예에 따른 에너지 저장 장치용 비상 차단 회로의 비상 상황 및 복구 동작을 설명하기 위한 타임차트이다. 도 3b는 본 발명의 실시예에 따른 에너지 저장 장치용 비상 차단 회로의 비상 상황 및 복구 동작을 설명하기 위한 회로도이다.3A is a time chart for explaining an emergency situation and recovery operation of the emergency shut-off circuit for an energy storage device according to the embodiment of the present invention. 3B is a circuit diagram for explaining an emergency situation and recovery operation of the emergency shut-off circuit for an energy storage device according to the embodiment of the present invention.
도 3a 및 도 3b를 참조하면, 먼저 감전, 단락, 화재 등의 비상 상황이 발생했을 때, 작업자는 상기 비상 차단 스위치(110)를 개방한다. 이에 따라, 상기 제 1 분기 라인(L1)에서 상기 비상 차단 스위치(110)에 흐르던 전류(①)는 차단된다. 따라서, 상기 제 1 릴레이 코일(120)에 흐르는 전류 역시 차단되며, 이에 따라 상기 제 1 접점(121)이 개방된다. 다만, 이 경우, 상기 제 2 릴레이 코일(130)에 흐르는 전류(②)는 여전히 흐를 수 있으며, 이에 따라 상기 제 2 접점(131)은 닫힌 상태를 유지할 수 있다.Referring to FIGS. 3A and 3B, when an emergency such as an electric shock, short-circuit, or fire occurs, the operator opens the emergency shut-off switch 110. Accordingly, the current (1) flowing through the emergency shut-off switch 110 in the first branch line L1 is cut off. Accordingly, the current flowing through the first relay coil 120 is also cut off, and thus the first contact 121 is opened. However, in this case, the current (2) flowing in the second relay coil 130 may still flow, so that the second contact 131 can be kept closed.
또한, 상기 제 2 분기 라인(L2)의 구성에서 상기 제 1 접점(121)이 개방됨에 따라, 상기 제 2 분기 라인(L2)을 흐르던 전류는 차단된다. 따라서, 상기 분류기(140)에 전류가 인가되지 않으며, 이에 따라 최종적으로 상기 차단기(150)가 동작하여 배선의 전류가 차단될 수 있다.In the configuration of the second branch line L2, as the first contact 121 is opened, the current flowing through the second branch line L2 is cut off. Accordingly, no current is applied to the classifier 140, and the breaker 150 is finally operated, so that the current of the wiring can be cut off.
한편, 감전, 단락, 화재 등의 비상 상황으로부터 복구되었을 때, 작업자는 최종 확인 후 다시 상기 비상 차단 스위치(110)를 닫을 수 있으며, 이에 따라 상기 제 1 릴레이 코일(120)에 다시 전류가 흐르고 제 1 접점(121)이 닫히게 되어, 본 발명의 실시예에 따른 에너지 저장 장치용 비상 차단 회로(100)는 평상시 동작을 수행할 수 있다.On the other hand, when recovering from an emergency such as an electric shock, a short circuit or a fire, the operator can close the emergency shut-off switch 110 again after the final confirmation, 1 contact 121 is closed, so that the emergency shut-off circuit 100 for the energy storage device according to the embodiment of the present invention can perform normal operation.
이하에서는 본 발명의 실시예에 따른 에너지 저장 장치용 비상 차단 회로(100)의 정전 및 복전 상황시 동작을 설명하도록 한다.Hereinafter, the operation of the emergency shut-off circuit 100 for an energy storage device according to an embodiment of the present invention will be described.
도 4a는 본 발명의 실시예에 따른 에너지 저장 장치용 비상 차단 회로의 정전 및 복전 동작을 설명하기 위한 타임차트이다. 도 4b는 본 발명의 실시예에 따른 에너지 저장 장치용 비상 차단 회로의 정전 및 복전 동작을 설명하기 위한 회로도이다.FIG. 4A is a time chart for explaining the power interruption and recharge operation of the emergency shut-off circuit for an energy storage device according to the embodiment of the present invention. FIG. 4B is a circuit diagram for explaining the operation of the emergency shut-off circuit for an energy storage device according to the embodiment of the present invention. FIG.
먼저, 도 4a를 참조하면, 정전이 발생되었을 때, 상기 제 1 분기 라인(L1)과 제 2 분기 라인(L2)에서 모두 전류가 흐를 수 없다. 이에 따라, 상기 제 1 릴레이 코일(120)과 제 2 릴레이 코일(130)은 모두 전류가 흐르지 않으며, 이에 연결된 상기 제 1 접점(121) 및 제 2 접점(131)은 개방된다. 또한, 배선에 전류가 흐르지 않음에 따라 상기 분류기(140) 및 차단기(150)는 동작을 수행하지 않는다.First, referring to FIG. 4A, when a power failure occurs, no current can flow in both the first branch line L1 and the second branch line L2. Accordingly, no current flows through the first relay coil 120 and the second relay coil 130, and the first contact 121 and the second contact 131 connected to the first relay coil 120 and the second relay coil 130 are opened. In addition, as the current does not flow through the wiring, the classifier 140 and the breaker 150 do not operate.
한편, 도 4a 및 도 4b를 참조하면, 이후 다시 복전이 되었을 때, 상기 제 1 분기 라인(L1)에서 제 1 릴레이 코일(120)과 제 2 릴레이 코일(130)에 각각 다시 전류가 인가되어(①, ②), 상기 제 1 접점(121) 및 제 2 접점(131)은 닫힌 상태가 된다. 따라서, 상기 분배기(140)와 차단기(150)는 다시 평상시와 같은 상태가 되어, 배선을 통한 전력 계통(10)의 전력이 에너지 저장 장치(20)로 전달될 수 있다.4A and 4B, current is applied again to the first relay coil 120 and the second relay coil 130 in the first branch line L1, (1) and (2)), the first contact 121 and the second contact 131 are closed. Accordingly, the distributor 140 and the breaker 150 are again in a normal state, so that the power of the power system 10 through the wiring can be transferred to the energy storage device 20. [
또한, 이 때, 상기 제 2 릴레이 코일(130) 및 이에 의한 제 2 접점(131)은 타이머 릴레이(timer relay)로서 동작할 수 있다. 즉, 상기 제 2 접점(131)은 상기 제 1 접점(121)에 비해 설정된 시간(예를 들어, 10[ms])만큼 지연되어 닫히는 동작을 수행할 수 있다. 이러한 동작에 의해, 복전시 혹시 발생할 수 있는 오동작을 방지할 수 있기 때문에 신뢰성을 높일 수 있다. 또한, 이러한 지연 시간은 충분히 작은 시간이어서 실제 에너지의 효율에는 영향을 미치지 않을 수 있다.Also, at this time, the second relay coil 130 and the second contact 131 may operate as a timer relay. That is, the second contact 131 may perform an operation of closing the first contact 121 by a predetermined time (for example, 10 [ms]). By such an operation, it is possible to prevent a malfunction that may occur in a repetitive case, thereby improving the reliability. Also, this delay time is sufficiently small and may not affect the efficiency of the actual energy.
이하에서는 본 발명의 실시예에 따른 에너지 저장 장치용 비상 차단 회로(100)의 단선 상황시 동작을 설명하도록 한다.Hereinafter, the operation of the emergency shut-off circuit 100 for an energy storage device according to an embodiment of the present invention will be described.
도 5a는 본 발명의 실시예에 따른 에너지 저장 장치용 비상 차단 회로의 배선 단선 및 복구 동작을 설명하기 위한 타임차트이다. 도 5b는 본 발명의 실시예에 따른 에너지 저장 장치용 비상 차단 회로의 배선 단선 및 복구 동작을 설명하기 위한 회로도이다.5A is a time chart for explaining wiring disconnection and recovery operation of the emergency shutdown circuit for an energy storage device according to the embodiment of the present invention. FIG. 5B is a circuit diagram for explaining the wire disconnection and recovery operation of the emergency shutdown circuit for an energy storage device according to the embodiment of the present invention. FIG.
도 5a 및 도 5b를 참조하면, 단선이 이루어질 때, 상기 제 1 분기 라인(L1)과 제 2 분기 라인(L2)에서 모두 전류가 흐를 수 없다. 이에 따라, 상기 제 1 릴레이 코일(120)과 제 2 릴레이 코일(130)은 모두 전류가 흐르지 않으며, 이에 연결된 상기 제 1 접점(121) 및 제 2 접점(131)은 개방된다. 또한, 배선에 전류가 흐르지 않음에 따라 상기 분류기(140) 및 차단기(150)는 동작을 수행하지 않게 된다.Referring to FIGS. 5A and 5B, when disconnection occurs, no current can flow in both the first branch line L1 and the second branch line L2. Accordingly, no current flows through the first relay coil 120 and the second relay coil 130, and the first contact 121 and the second contact 131 connected to the first relay coil 120 and the second relay coil 130 are opened. In addition, as the current does not flow through the wiring, the classifier 140 and the breaker 150 do not operate.
상기와 같이 하여, 본 발명의 실시예에 따른 에너지 저장 장치용 비상 차단 회로(100)는 비상 상황, 정전 및 단선과 같은 상황의 발생시 작업자의 안전을 보호하면서도, 관리의 편의성을 제공할 수 있다. 특히, 본 발명의 실시예에 따른 에너지 저장 장치용 비상 차단 회로(100)는 비상 상황에서 차단기(150)를 통한 차단이 가능하고, 정전 발생시 차단기(150)가 동작하지 않도록 하여 정전 복구시 용이하게 차단기(150)가 재투입될 수 있다.As described above, the emergency shut-off circuit 100 for an energy storage device according to the embodiment of the present invention can provide the convenience of management while protecting the safety of the operator in the event of an emergency situation, power failure, or disconnection. In particular, the emergency shut-off circuit 100 for an energy storage device according to an embodiment of the present invention is capable of shutting down through the circuit breaker 150 in an emergency situation and preventing the circuit breaker 150 from operating when a power failure occurs, The breaker 150 can be re-inserted.
이상에서 설명한 것은 본 발명에 의한 에너지 저장 장치용 비상 차단 회로(100)를 실시하기 위한 하나의 실시예에 불과한 것으로서, 본 발명은 상기 실시예에 한정되지 않고, 이하의 특허청구범위에서 청구하는 바와 같이 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변경 실시가 가능한 범위까지 본 발명의 기술적 정신이 있다고 할 것이다.The above description is only one embodiment for implementing the emergency shut-off circuit 100 for an energy storage device according to the present invention, and the present invention is not limited to the above embodiments, It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (10)

  1. 전력 계통과 에너지 저장 시스템의 사이에 위치한 배선에 연결된 비상 차단 회로에 있어서,1. An emergency shut-off circuit connected to a wiring located between a power system and an energy storage system,
    상기 배선으로부터 분기된 제 1 분기 라인에 위치하고, 작업자에 의해 개방될 수 있는 비상 차단 스위치;An emergency shut-off switch located in a first branch line diverging from the wiring and being openable by an operator;
    상기 비상 차단 스위치와 직렬로 연결된 제 1 릴레이 코일;A first relay coil connected in series with the emergency shut-off switch;
    상기 비상 차단 스위치 및 제 1 릴레이 코일에 대해 병렬로 연결된 제 2 릴레이 코일;A second relay coil connected in parallel to the emergency shut-off switch and the first relay coil;
    상기 배선으로부터 분기된 제 2 분기 라인에 위치하고, 상기 제 1 릴레이 코일에 연동되는 제 1 접점;A first contact located in a second branch line branched from the wiring and interlocked with the first relay coil;
    상기 제 2 릴레이 코일에 연동되고 상기 제 1 접점과 직렬로 연결된 제 2 접점; 및A second contact interlocked with the second relay coil and connected in series with the first contact; And
    상기 제 2 분기 라인에 전기적으로 연결되어, 상기 제 2 분기 라인에 전류가 흐르지 않을 때 동작하는 차단기를 포함하는 비상 차단 회로.And a breaker that is electrically coupled to the second branch line and operates when no current flows through the second branch line.
  2. 제 1 항에 있어서,The method according to claim 1,
    상기 비상 차단 스위치는 평상시 닫힌 상태를 유지하고, 작업자에 의해 개방가능한 비상 차단 회로.Wherein the emergency shut-off switch maintains a normally closed state and can be opened by an operator.
  3. 제 1 항에 있어서,The method according to claim 1,
    상기 제 1 접점은 상기 제 1 릴레이 코일에 전류가 인가될 때 닫힌 상태를 유지하고, 전류가 차단될 때 개방되는 비상 차단 회로.Wherein the first contact is kept closed when a current is applied to the first relay coil, and is opened when the current is interrupted.
  4. 제 1 항에 있어서,The method according to claim 1,
    상기 제 2 접점은 상기 제 2 릴레이 코일에 전류가 인가될 때 닫힌 상태를 유지하고, 전류가 차단될 때 개방되는 비상 차단 회로.And the second contact maintains a closed state when a current is applied to the second relay coil, and is opened when the current is interrupted.
  5. 제 1 항에 있어서,The method according to claim 1,
    상기 제 2 릴레이 코일 및 제 2 접점은 타임 릴레이(time relay)로 구성되어, 상기 제 2 릴레이 코일에 전류가 흐를 때 설정된 지연 시간 이후 상기 제 2 접점이 닫히도록 동작하는 비상 차단 회로.Wherein the second relay coil and the second contact are configured as a time relay so that the second contact is closed after a delay time set when a current flows through the second relay coil.
  6. 제 1 항에 있어서,The method according to claim 1,
    비상 상황에서 상기 비상 차단 스위치가 개방된 이후, 상기 작업자에 의해 다시 닫히게 되면, 상기 제 1 릴레이 코일 및 제 2 릴레이 코일에 전류가 인가되어, 상기 제 1 접점 및 제 2 접점이 닫히도록 동작하는 비상 차단 회로.A first relay coil and a second relay coil which are connected to the first relay coil and the second relay coil so as to close the first contact and the second contact when the emergency shut- Blocking circuit.
  7. 제 1 항에 있어서,The method according to claim 1,
    정전 상황에서 복전될 때, 상기 제 1 릴레이 코일 및 제 2 릴레이 코일에 전류가 인가되면, 상기 제 1 접점 및 제 2 접점은 닫히도록 동작하되, 상기 제 2 접점은 설정된 지연 시간 이후에 닫히도록 동작되는 비상 차단 회로.Wherein when the current is applied to the first relay coil and the second relay coil, the first contact and the second contact are closed so that the second contact is closed after a predetermined delay time Emergency shut down circuit.
  8. 제 7 항에 있어서,8. The method of claim 7,
    상기 정전 및 복전시, 상기 차단기는 동작하지 않는 비상 차단 회로.Wherein the circuit breaker is not operated.
  9. 제 1 항에 있어서,The method according to claim 1,
    상기 제 2 분기 라인과 상기 차단기의 사이에는 분류기가 더 형성된 비상 차단 회로.Further comprising a classifier between the second branch line and the circuit breaker.
  10. 제 9 항에 있어서,10. The method of claim 9,
    상기 분류기는 상기 제 2 분기 라인에 전류가 흐르지 않을 때 상기 차단기에 대해 배선 차단에 대응되는 신호를 제공하는 비상 차단 회로.Wherein said classifier provides a signal corresponding to interconnection to said breaker when no current flows through said second branch line.
PCT/KR2018/014101 2018-01-08 2018-11-16 Emergency disconnect circuit for energy storage system WO2019135488A1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09130970A (en) * 1995-10-31 1997-05-16 Shimadzu Corp Unit for turning power supply on/off
JP2013118786A (en) * 2011-12-05 2013-06-13 Hitachi Ltd Power storage device
JP2015162941A (en) * 2014-02-26 2015-09-07 トヨタ自動車株式会社 Power storage system
KR20160116350A (en) * 2012-01-27 2016-10-07 미쓰비시덴키 가부시키가이샤 Power supply switching device, switch board, monitoring device, power supply switching method and recording medium
JP2016208635A (en) * 2015-04-21 2016-12-08 株式会社Ｎｔｔファシリティーズ Protection system and protection method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102234290B1 (en) * 2014-04-04 2021-03-31 삼성에스디아이 주식회사 Energy storage system and controlling method the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09130970A (en) * 1995-10-31 1997-05-16 Shimadzu Corp Unit for turning power supply on/off
JP2013118786A (en) * 2011-12-05 2013-06-13 Hitachi Ltd Power storage device
KR20160116350A (en) * 2012-01-27 2016-10-07 미쓰비시덴키 가부시키가이샤 Power supply switching device, switch board, monitoring device, power supply switching method and recording medium
JP2015162941A (en) * 2014-02-26 2015-09-07 トヨタ自動車株式会社 Power storage system
JP2016208635A (en) * 2015-04-21 2016-12-08 株式会社Ｎｔｔファシリティーズ Protection system and protection method

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