WO2023140671A1 - 에너지 저장 장치 - Google Patents
에너지 저장 장치 Download PDFInfo
- Publication number
- WO2023140671A1 WO2023140671A1 PCT/KR2023/000987 KR2023000987W WO2023140671A1 WO 2023140671 A1 WO2023140671 A1 WO 2023140671A1 KR 2023000987 W KR2023000987 W KR 2023000987W WO 2023140671 A1 WO2023140671 A1 WO 2023140671A1
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- WO
- WIPO (PCT)
- Prior art keywords
- line
- battery
- unit
- energy storage
- container
- Prior art date
Links
- 238000004146 energy storage Methods 0.000 title claims abstract description 52
- 238000006243 chemical reaction Methods 0.000 claims abstract description 4
- 238000004891 communication Methods 0.000 claims description 106
- 238000009413 insulation Methods 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 230000001079 digestive effect Effects 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 5
- 238000002347 injection Methods 0.000 description 13
- 239000007924 injection Substances 0.000 description 13
- 238000010586 diagram Methods 0.000 description 10
- 238000005259 measurement Methods 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- QELJHCBNGDEXLD-UHFFFAOYSA-N nickel zinc Chemical compound [Ni].[Zn] QELJHCBNGDEXLD-UHFFFAOYSA-N 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/574—Devices or arrangements for the interruption of current
- H01M50/583—Devices or arrangements for the interruption of current in response to current, e.g. fuses
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
Definitions
- the present invention relates to energy storage devices.
- lithium batteries are in the limelight because of their advantages of free charge and discharge, very low self-discharge rate, and high energy density, as they have almost no memory effect compared to nickel-based batteries.
- An energy storage device using such a battery may be a device that stores large-scale power and provides the stored power to a plurality of load facilities.
- energy storage devices are used in the form of industrial, building, or household energy management systems, and are used as a regular power grid and/or an emergency power grid by providing stored power to load facilities at each point of use.
- Conventional energy storage devices are configured in container units, and one container includes a plurality of battery racks and switchboards. That is, a container of a size capable of containing all configurations of the energy storage device was required.
- each energy storage device is configured as an independent container, there is a problem in that each container-based energy storage device must be individually controlled.
- the present invention has been made to solve the above problems, and an object of the present invention is to provide an energy storage device capable of integrated control and management and having an expandable structure.
- An energy storage device includes a control container configured to be connected to an external power conversion system (PCS) and an external electrical system; and a battery container including one or more battery racks and configured to be connected to the control container.
- PCS power conversion system
- battery container including one or more battery racks and configured to be connected to the control container.
- the control container may include: a DC unit configured to receive DC power from the PCS through a DC line; an AC unit configured to receive AC power from the electrical system through an AC line; and a main control unit connected to the AC unit to receive power from the electrical system through the AC line and to communicate with the PCS.
- the DC unit may include a main switch having one end connected to the PCS and configured to be positioned on a DC line between the control container and the battery container; and a fuse connected to the other end of the main switch and configured to be positioned on the DC line.
- the number of fuses corresponding to the number of containers of the battery may be included in the DC unit.
- the fuse may be detachable from the DC unit.
- the DC unit may include an insulation measuring unit connected to the DC line and configured to measure an insulation resistance of the DC line; and a surge protection unit connected to the DC line and configured to prevent a surge current from flowing in the DC line.
- the AC unit may include a first switch configured to have one end connected to the electric system; an uninterruptible power supply unit having one end connected to the other end of the first switch; a second switch configured to have one end connected to the other end of the uninterruptible power supply unit; and a third switch having one end connected between the electrical system and one end of the first switch and the other end connected to the other end of the second switch.
- the battery container may be directly connected to the AC unit through the AC line and connected in parallel to the DC line.
- the main control unit may include a battery system controller (BSC); a master controller communicatively connected to the BSC through a first communication line; and a bank battery management system (BBMS) connected to the BSC to be communicatively connected through a second communication line.
- BSC battery system controller
- BBMS bank battery management system
- the battery container may include one or more battery racks connected to the DC unit and configured to receive the DC power through the DC line; and a sub-controller connected to the AC unit to receive power from the electrical system through the AC line and communicatively connected to the main control unit through the first communication line and the second communication line.
- the sub-controller may include: a slave controller communicatively connected to the master controller through the first communication line; And configured to monitor information of the corresponding battery rack, it may include a rack battery management system (RBMS) connected to communicate with the BBMS through the second communication line.
- RBMS rack battery management system
- the master controller may be configured to be directly connected to each of a plurality of slave controllers included in the plurality of battery containers through the first communication line.
- the BBMS may be connected in series with a plurality of RBMS included in the plurality of battery containers through the second communication line in a daisy chain manner.
- the energy storage device is connected to the AC unit, receives power from the electric system through the AC line, is connected to the master controller through a third communication line, and is connected to each of the battery racks through a pipeline. It may further include a watering container configured to be connected.
- the water injection container may be configured to output an internal digestive fluid to the pipeline when receiving an injection command from the master controller.
- the battery container may include a sub-switch configured such that one end is connected to the DC line and the other end is connected to the one or more battery racks.
- an energy storage device capable of integrated management and expansion of a battery container may be provided.
- FIG. 1 is a diagram schematically illustrating an energy storage device according to an embodiment of the present invention.
- FIG. 2 is a diagram schematically illustrating an exemplary configuration of a control container according to an embodiment of the present invention.
- FIG. 3 is a diagram schematically illustrating exemplary configurations of a control container and a battery container according to an embodiment of the present invention.
- FIG. 4 is a diagram schematically illustrating another exemplary configuration of a control container and a battery container according to an embodiment of the present invention.
- FIG. 5 is a diagram schematically illustrating an exemplary configuration of an energy storage device according to an embodiment of the present invention.
- FIG. 1 is a diagram schematically illustrating an energy storage device 10 according to an embodiment of the present invention.
- 2 is a diagram schematically illustrating an exemplary configuration of a control container 100 according to an embodiment of the present invention.
- An energy storage device 10 includes a control container 100 configured to be connected to an external power conversion system (PCS 20) and an external electrical system 30; And it may include a battery container 200 including one or more battery racks 210 and configured to be connected to the control container 100 .
- PCS 20 external power conversion system
- PCS 30 external electrical system 30
- battery container 200 including one or more battery racks 210 and configured to be connected to the control container 100 .
- the energy storage device 10 may be expressed as a DC-LINK.
- the control container 100 may be expressed as E-LINK
- the battery container 200 may be expressed as B-LINK.
- a control container 100 may include a DC unit 110 , an AC unit 120 and a main control unit 130 .
- the DC unit 110 may be configured to receive DC power from the PCS 20 through the DC line (DCL).
- the DC unit 110 may be electrically connected to the PCS 20 through the DC line (DCL). Also, the DC unit 110 may receive DC power from the PCS 20 through the DC line DCL.
- the PCS 20 may convert AC current introduced from the electrical system 30 into DC current and output the converted DC current to the DC unit 110 as DC power.
- the DC unit 110 may be electrically connected to the PCS 20 through a DC line (DCL).
- DCL DC line
- the AC unit 120 may be configured to receive AC power from the electrical system 30 through an AC line (ACL).
- ACL AC line
- the AC unit 120 may be electrically connected to the electrical system 30 through an AC line (ACL). Also, the AC unit 120 may receive AC power from the electrical system 30 through the AC line ACL. For example, AC power may be applied to components such as heating, ventilation and air conditioning (HAVC), lighting, and fire suppression system (FSS) included in the control container 100 .
- HAVC heating, ventilation and air conditioning
- FSS fire suppression system
- the main control unit 130 may be configured to be connected to the AC unit 120 and receive power from the electric system 30 through an AC line (ACL).
- the main controller 130 may be connected to the PCS 20 so as to be communicable.
- the main controller 130 may monitor and control states of the control container 100 and the battery container 200 . Also, the main control unit 130 may be connected to the AC line (ACL) and receive AC power from the electric system 30 . That is, since the control container 100 does not have a separate power supply, the main controller 130 can receive AC power from the AC unit 120 .
- ACL AC line
- the main control unit 130 may include a power supply unit 134.
- the power supply unit 134 is an SMPS and may be a unit that converts alternating current (AC) into direct current (DC).
- the power supply unit 134 may be directly connected to the AC unit 120 through an AC line (ACL).
- ACL AC line
- the power supply unit 134 is connected to an AC line (ACL) and may convert AC power to DC power.
- the power supply unit 134 may supply the converted DC power to the master controller 132 and the BBMS 133 .
- the main control unit 130 may be connected to the AC unit 120 through an AC line (ACL). Also, the main control unit 130 may receive AC power from the electrical system 30 through the AC line ACL.
- ACL AC line
- the energy storage device 10 may include a control container 100 and a battery container 200, respectively.
- the energy storage device 10 since the control container 100 and the battery container 200 are independent, the energy storage device 10 has an advantage of being easy to install. For example, since the energy storage device 10 can be configured when only the communication line and the power line of the control container 100 and the battery container 200 are connected, space limitations of the energy storage device 10 can be reduced.
- the energy storage device 10 has an advantage in that the battery container 200 can be easily expanded. That is, since a plurality of battery containers 200 can be easily connected to one control container 100, the capacity of the energy storage device 10 can be easily expanded.
- the DC unit 110 may include a main switch 111 and a fuse 112 .
- the main switch 111 may be configured such that one end is connected to the PCS 20 and positioned on a DC line DCL between the control container 100 and the battery container 200 .
- the main switch 111 may be located on the DC line (DCL). And, one end of the main switch 111 may be connected to the PCS (20).
- the main switch 111 is located on the DC line (DCL), and one end of the main switch 111 may be connected to the PCS 20 .
- the fuse 112 may be connected to the other end of the main switch 111 and positioned on the DC line (DCL).
- the fuse 112 may be located on the DC line (DCL). Also, one end of the fuse 112 may be connected to the other end of the main switch 111 . That is, the PCS 20, the main switch 111, and the fuse 112 may be connected in series on the DC line (DCL).
- the fuse 112 is located on the DC line (DCL), and one end of the fuse 112 may be connected to the other end of the main switch 111 .
- the number of fuses 112 corresponding to the number of containers of the battery may be included in the DC unit 110 .
- the fuse 112 may be included in the DC unit 110 to block short circuit current when a short circuit accident occurs.
- the capacity of the fuse 112 is set in advance, if the battery container 200 is additionally connected to the control container 100, the short-circuit current of the energy storage device 10 cannot be blocked with only the previously installed fuse 112. There is a problem.
- the number of fuses 112 corresponding to the number of battery containers 200 may be included in the DC unit 110 .
- the fuse 112 may be detachable from the DC unit 110 . That is, the fuses 112 may be detachable from the DC unit 110 so that the number of fuses 112 corresponding to the number of battery containers 200 connected to the control container 100 may be included in the DC unit 110.
- the plurality of fuses 112 when the plurality of fuses 112 are included in the DC unit 110, the plurality of fuses 112 may be connected in parallel. That is, as the plurality of fuses 112 are connected in parallel, the amount of short-circuit current that can be interrupted can be increased.
- the DC unit 110 may further include an insulation measurement unit 113 and a surge protection unit 114 .
- the insulation measuring unit 113 may be connected to the DC line (DCL) and configured to measure the insulation resistance of the DC line (DCL). Also, the surge protection unit 114 may be connected to the DC line DCL and prevent a surge current from flowing in the DC line DCL.
- the insulation measuring unit 113 and the surge protection unit 114 may be connected to the DC line (DCL) between the PCS 20 and the main switch 111 .
- the insulation measurement unit 113 may monitor the ground fault of the DC line (DCL) and detect the insulation resistance of the battery rack 210 included in the battery container 200 .
- the insulation measurement unit 113 may be an Insulation monitoring device (IMD).
- the surge protection unit 114 may protect the control container 100 and the battery container 200 from surge current caused by lightning.
- the surge protection unit 114 may be a surge protect device (SPD).
- the AC unit 120 may include a first switch 121, an uninterruptible power supply unit 122, a second switch 123, and a third switch 124.
- One end of the first switch 121 may be configured to be connected to the electrical system 30 .
- the first switch 121 may be located on the AC line ACL. Also, one end of the first switch 121 may be connected to the electrical system 30 .
- One end of the uninterruptible power supply unit 122 may be configured to be connected to the other end of the first switch 121 .
- the uninterruptible power supply unit 122 may be an uninterruptible power supply system (UPS).
- UPS uninterruptible power supply system
- the uninterruptible power supply unit 122 may be located on an AC line (ACL). One end of the uninterruptible power supply unit 122 may be connected to the other end of the first switch 121 .
- the second switch 123 may be configured so that one end is connected to the other end of the uninterruptible power supply unit 122 .
- the second switch 123 may be located on the AC line ACL. And, one end of the second switch 123 may be connected to the other end of the uninterruptible power supply unit 122 . That is, the first switch 121, the uninterruptible power supply unit 122, and the second switch 123 may be connected in series on the AC line ACL.
- the third switch 124 may be configured such that one end is connected between the electrical system 30 and one end of the first switch 121 and the other end is connected to the other end of the second switch 123 .
- the third switch 124 may be connected in parallel with the first switch 121 , the uninterruptible power supply unit 122 and the second switch 123 .
- one end of the third switch 124 may be connected to an AC line (ACL) between the electric system 30 and one end of the first switch 121 .
- the other end of the third switch 124 may be connected to the AC line ACL connected to the other end of the second switch 123 .
- the main controller 130 may include a BSC 131 (Battery system controller), a master controller 132, and a BBMS 133 (Bank battery management system).
- BSC 131 Battery system controller
- master controller 132 Master controller
- BBMS 133 Bank battery management system
- the BSC 131 is a top-level controller and may be connected to the master controller 132 and the BBMS 133 so as to be communicable.
- the BSC 131 may be configured to be connected to the PCS 20 through the first communication line CL1.
- the first communication line CL1 may be a communication line applied to the first communication protocol.
- the first communication line CL1 may be a communication line for Modbus TCP/IP communication.
- the master controller 132 may be communicatively connected to the BSC 131 through the first communication line CL1.
- the master controller 132 is a programmable logic controller (PLC) included in the E-LINK and may be expressed as an E-PLC. That is, the master controller 132 may be connected to components such as HVAC, uninterruptible power supply unit 122, door sensor, fuse 112, switch, switching mode power supply (SMPS), FSS, surge protection unit 114, and insulation measurement unit 113 included in the control container 100 to control these components. And, the master controller 132 may transmit the control container 100 information obtained from these configurations to the BSC 131 through the first communication line CL1. That is, the BSC 131 may receive control container 100 information acquired by the master controller 132 through the first communication line CL1. Also, the BSC 131 may control the master controller 132 to control each component included in the control container 100 based on the control container 100 information.
- PLC programmable logic controller
- the master controller 132 may be communicatively connected to the BSC 131 through the first communication line CL1. That is, the PCS 20, the BSC 131, and the master controller 132 may be connected to each other through the first communication line CL1.
- the BBMS 133 may be communicatively connected to the BSC 131 through the second communication line CL2.
- the second communication line CL2 may be a communication line applied to the second communication protocol.
- the second communication line CL2 may be a communication line for controller area network (CAN) communication.
- CAN controller area network
- the BBMS 133 may be communicatively connected to the BSC 131 through the second communication line CL2. That is, the BSC 131 may be connected to the master controller 132 and the BBMS 133 through different communication lines. Accordingly, even if a defect occurs in one communication line, the BSC 131 can continue communication through the remaining communication lines.
- FIG. 3 is a diagram schematically illustrating exemplary configurations of a control container 100 and a battery container 200 according to an embodiment of the present invention.
- the battery container 200 may include one or more battery racks 210 and a sub control unit 220 .
- One or more battery racks 210 are connected to the DC unit 110 and may be configured to receive DC power through a DC line (DCL).
- DCL DC line
- one or more battery racks 210 may be included in the battery container 200 . And, each battery rack 210 may include one or more battery modules. And, each battery rack 210 may be connected to the DC line (DCL). That is, each battery module included in each battery rack 210 may receive DC power through a DC line (DCL). For example, in the process of charging the battery rack 210, each battery module included in the corresponding battery rack 210 may be supplied with DC power through the DC line (DCL).
- DCL DC line
- the battery rack 210 may be connected in parallel to the DC line (DCL). Since the fuse 112 is connected to the DC line DCL, short-circuit current can be blocked. In addition, the ground fault and insulation of the DC line (DCL) are diagnosed by the insulation measurement unit 113, and the surge current can be prevented from flowing by the surge protection unit 114. Thus, the battery module included in the battery rack 210 by the DC unit 110 can be safely protected.
- DCL DC line
- the sub control unit 220 is connected to the AC unit 120, receives power from the electric system 30 through the AC line ACL, and connects to the main control unit 130 through the first communication line CL1 and the second communication line CL2.
- the sub controller 220 may monitor and control the state of the battery container 200 . Also, the sub controller 220 may be connected to the AC line (ACL) and receive AC power from the electrical system 30 . That is, since the battery container 200 does not have a separate power supply, the sub controller 220 can receive AC power from the AC unit 120 .
- ACL AC line
- the sub controller 220 may be connected to the AC unit 120 through an AC line (ACL). Also, the sub controller 220 may receive AC power from the electrical system 30 through the AC line ACL.
- the main controller 130 and the sub controller 220 may be connected in parallel to the AC unit 120 .
- the sub controller 220 may be communicatively connected to the main controller 130 through the first communication line CL1 and the second communication line CL2.
- control container 100 and the battery container 200 are electrically connected through the DC line (DCL) and the AC line (ACL), and are communicatively connected through the first communication line (CL1) and the second communication line (CL2).
- the energy storage device 10 may easily expand the battery container 200 . That is, based on the connection to the DC line (DCL), the AC line (ACL), the first communication line (CL1), and the second communication line (CL2), the plurality of battery containers 200 can be connected to the control container 100. Therefore, according to an embodiment of the present invention, there is an advantage in that capacity expansion of the energy storage device 10 is easy.
- the sub controller 220 may include a slave controller 221 and a rack battery management system (RBMS) 222.
- RBMS rack battery management system
- the slave controller 221 may be communicatively connected to the master controller 132 through the first communication line CL1.
- the slave controller 221 is a PLC included in the B-LINK and may be expressed as a B-PLC. That is, the slave controller 221 is connected to the HVAC included in the battery container 200, the uninterruptible power supply unit 122, the door sensor, the gas sensor, the smoke sensor, the switch, the SMPS, the damper, the fan, and the FSS to control these configurations. And, the slave controller 221 may transmit the battery container 200 information obtained from these configurations to the master controller 132 through the first communication line CL1. Also, the BSC 131 may receive the battery container 200 information acquired by the master controller 132 through the first communication line CL1. That is, the BSC 131, the master controller 132, and the slave controller 221 may be connected to each other through the first communication line CL1. Also, the BSC 131 may control the slave controller 221 to control each component included in the battery container 200 based on the battery container 200 information.
- the slave controller 221 may be communicatively connected to the master controller 132 through the first communication line CL1 . That is, the BSC 131, the master controller 132, and the slave controller 221 may be connected to each other through the first communication line CL1.
- RBMS (222) is configured to monitor the information of the corresponding battery rack 210, may be connected to communicatively with the BBMS (133) through the second communication line (CL2).
- one or more battery racks 210 may be included in the battery container 200 .
- each battery rack 210 may include one or more battery modules.
- the state of the battery module may be monitored by a module battery management system (MBMS).
- MBMS module battery management system
- one or more MBMSs may be connected to the corresponding RBMS 222 through the second communication line CL2. That is, the RBMS (222) may monitor the state of the battery rack 210 and the state of the battery module included in the battery rack (210).
- the RBMS 222 may be connected to the BBMS 133. That is, the BBMS 133 included in the control container 100 may be connected to the RBMS 222 included in the battery container 200 using the second communication line CL2 . Then, the BBMS (133) may receive information on the corresponding battery rack (210) from one or more RBMS (222) included in the battery container (200).
- the battery container 200 may include two RBMSs 222 .
- the RBMS 222 may be connected to the BBMS 133 through the second communication line CL2.
- the RBMS 222 may be connected to the RBMS 222 through the second communication line CL2. That is, the BSC 131 and the BBMS 133 included in the control container 100 may be communicatively connected to the RBMS 222 included in the battery container 200 through the second communication line CL2.
- the energy storage device 10 may include a first communication line CL1 connecting the BSC 131, the master controller 132, and the slave controller 221, and a second communication line CL2 connecting the BSC 131, the BBMS 133, and the RBMS 222, respectively. Therefore, even if a defect occurs in one communication line, communication can continue through the other communication lines.
- the BBMS 133 may receive the information of the battery rack 210 normally from the RBMS 222 through the second communication line CL2. Therefore, the energy storage device 10 has an advantage of establishing independent communication paths through different communication lines in consideration of communication targets and communication purposes. Therefore, stable communication can be performed in the energy storage device 10 .
- the battery container 200 may further include a sub switch 230 .
- the sub-switch 230 may be configured such that one end is connected to the DC line (DCL) and the other end is connected to one or more battery racks (210).
- the slave controller 221 may be configured to control the operating state of the sub switch 230 . Specifically, the slave controller 221 may block the connection between the DC line (DCL) and the battery rack 210 by controlling the operating state of the sub switch 230 to a turn-off state when necessary. For example, when the door of the battery container 200 is open or a fire occurs in the battery container 200, the slave controller 221 may control the operating state of the sub switch 230 to be turned off.
- DCL DC line
- the master controller 132 can control the operating state of the main switch 111 to a turn-off state.
- the slave controller 221 may control the operating state of the sub switch 230 to be turned off. In this case, as the operating states of the main switch 111 and the sub switch 230 are all controlled to a turn-off state, the electrical connection between the DC line (DCL) and the battery rack 210 can be completely cut off.
- the master controller 132 may control the operating state of the main switch 111 to be turned on. Also, the slave controller 221 included in the target battery container 200 may control the operating state of the corresponding sub switch 230 to be turned off. In this case, DC power may be supplied to the battery containers 200 other than the target battery container 200 .
- the energy storage device 10 has the advantage of being able to control the electrical connection between the battery container 200 and the DC line (DCL) through the main switch 111 and the sub switch 230.
- the electrical connection between each battery container 200 and the DC line DCL can be controlled, maintenance and expansion of the battery container 200 is easy.
- FIG. 4 is a diagram schematically illustrating another exemplary configuration of a control container 100 and a battery container 200 according to an embodiment of the present invention.
- the battery container 200 may be directly connected to the AC unit 120 through an AC line (ACL) and connected in parallel to a DC line (DCL).
- ACL AC line
- DCL DC line
- the sub controller 220 of the battery container 200 may include a power supply unit 223 .
- the power supply unit 223 may be an SMPS.
- the power supply unit 223 may be directly connected to the AC unit 120 through an AC line (ACL).
- ACL AC line
- the plurality of battery containers 200 may be directly connected to the AC unit 120 through an AC line ACL.
- the power supply unit 223 may convert AC power to DC power and supply the converted DC power to the slave controller 221 and the RBMS 222 .
- the sub switch 230 of the battery container 200 is connected to the DC line (DCL), the other end of the sub switch 230 may be connected to the battery rack (210). That is, the plurality of battery containers 200 may be connected in parallel to the DC line DCL. For example, in the embodiment of FIG. 4 , the plurality of battery containers 200 may be connected in parallel to the DC line DCL through the sub switch 230 .
- the master controller 132 may be configured to be directly connected to each of the plurality of slave controllers 221 included in the plurality of battery containers 200 through the first communication line CL1.
- the master controller 132 may be configured to be directly connected to each of the plurality of slave controllers 221 through the first communication line CL1.
- the master controller 132 may be configured to be directly connected to each of the plurality of slave controllers 221 through the first communication line CL1 in a home run manner.
- the master controller 132 may be directly connected to the slave controller 221 included in the battery container 200 through the first communication line CL1. Also, the master controller 132 may be directly connected to the slave controller 221 included in the battery container 200 through the first communication line CL1. That is, the communication structure between the master controller 132 and the slave controller 221 may not affect the communication structure between the master controller 132 and the slave controller 221 .
- the BBMS 133 may be serially connected to each other in a daisy chain manner with the plurality of RBMSs 222 included in the plurality of battery containers 200 through the second communication line CL2.
- the BBMS 133 may be configured to be serially connected to a plurality of RBMS 222 through the second communication line CL2.
- the BBMS 133 may be configured to be connected in series with a plurality of RBMS 222 through the second communication line CL2 in a daisy chain manner.
- the BSC 131 , the BBMS 133 , and the RBMS 222 may be connected in a daisy chain manner through the second communication line CL2 .
- the energy storage device 10 provides independence to the communication path along the first communication line CL1 and the communication path along the second communication line CL2, thereby improving the stability of each communication path.
- FIG. 5 is a diagram schematically illustrating an exemplary configuration of an energy storage device 10 according to an embodiment of the present invention.
- the energy storage device 10 may further include a water filling container 300 .
- the water injection container 300 may include a water injection device capable of outputting extinguishing liquid to the battery container 200 when a fire occurs in the battery container 200 .
- the water injection container 300 may be expressed as a water injection unit (WIU).
- the watering container 300 may be configured to be connected to the AC unit 120 and receive power from the electric system 30 through an AC line (ACL).
- ACL AC line
- the water filling container 300 may be electrically connected to the AC unit 120 through an AC line ACL. Also, the water filling container 300 may be supplied with AC power through the AC line (ACL).
- ACL AC line
- the watering container 300 may be configured to be connected to the master controller 132 through the third communication line CL3.
- the watering container 300 may include a control unit and a watering unit.
- the control unit may control the watering unit to output digestive fluid.
- Watering container 300 may be configured to be connected to each of the battery racks 210 through the pipeline (PL). In addition, the water injection container 300 may be configured to output the internal digestive fluid to the pipeline PL when receiving an injection command from the master controller 132 .
- the injection unit may be connected to the RBMS 222 included in the battery container 200 through the pipeline PL.
- the water injection unit may be connected to each battery module included in the RBMS 222 through a pipeline PL.
- a breakable bulb may be provided in the pipeline PL.
- the bulb may be configured to be damaged according to the temperature of the connected battery rack 210 or battery module.
- the control unit may receive a watering command.
- the control unit may control the water injection unit so that the water injection unit outputs the digestive fluid to the pipeline PL.
- the extinguishing liquid may flow into the battery module through the pipeline (PL).
- the master controller 132 may be communicatively connected to the water injection container 300 through the third communication line CL3.
- the third communication line CL3 may be a communication line applied to the third communication protocol.
- the third communication line CL3 may be a communication line for Modbus RTU communication.
- the energy storage device 10 establishes an independent communication path using each of the first communication line CL1, the second communication line CL2, and the third communication line CL3, thereby securing communication stability for each communication path.
Abstract
Description
Claims (15)
- 외부의 PCS(Power conversion system) 및 외부의 전기 계통과 연결되도록 구성된 제어 컨테이너; 및 하나 이상의 배터리 랙을 포함하고 상기 제어 컨테이너와 연결되도록 구성된 배터리 컨테이너를 포함하는 에너지 저장 장치에 있어서,상기 제어 컨테이너는,DC 라인을 통해 상기 PCS로부터 DC 전원을 공급받도록 구성된 DC부;AC 라인을 통해 상기 전기 계통으로부터 AC 전원을 공급받도록 구성된 AC부; 및상기 AC부와 연결되어 상기 AC 라인을 통해 상기 전기 계통으로부터 전원을 공급받고, 상기 PCS와 통신 가능하도록 연결된 메인 제어부를 포함하는 것을 특징으로 하는 에너지 저장 장치.
- 제1항에 있어서,상기 DC부는,일단이 상기 PCS에 연결되고, 상기 제어 컨테이너와 상기 배터리 컨테이너 사이의 DC 라인에 위치하도록 구성된 메인 스위치; 및상기 메인 스위치의 타단에 연결되고, 상기 DC 라인에 위치하도록 구성된 퓨즈를 더 포함하는 것을 특징으로 하는 에너지 저장 장치.
- 제2항에 있어서,상기 퓨즈는,상기 배터리의 컨테이너의 개수에 대응되는 개수가 상기 DC부에 포함되는 것을 특징으로 하는 에너지 저장 장치.
- 제3항에 있어서,상기 퓨즈는,상기 DC부에 탈착 가능하도록 구성된 것을 특징으로 하는 에너지 저장 장치.
- 제2항에 있어서,상기 DC부는,상기 DC 라인에 연결되고, 상기 DC 라인의 절연 저항을 측정하도록 구성된 절연 측정 유닛; 및상기 DC 라인에 연결되고, 상기 DC 라인에 서지 전류가 흐르는 것을 방지하도록 구성된 서지 보호 유닛을 더 포함하는 것을 특징으로 하는 에너지 저장 장치.
- 제1항에 있어서,상기 AC부는,일단이 상기 전기 계통에 연결되도록 구성된 제1 스위치;일단이 상기 제1 스위치의 타단에 연결되도록 구성된 무정전 전원 유닛;일단이 상기 무정전 전원 유닛의 타단에 연결되도록 구성된 제2 스위치; 및일단이 상기 전기 계통과 상기 제1 스위치의 일단 사이에 연결되고, 타단이 상기 제2 스위치의 타단에 연결되도록 구성된 제3 스위치를 포함하는 것을 특징으로 하는 에너지 저장 장치.
- 제1항에 있어서,상기 배터리 컨테이너는,상기 AC 라인을 통해 상기 AC부와 직접 연결되고, 상기 DC 라인에 병렬로 연결되도록 구성된 것을 특징으로 하는 에너지 저장 장치.
- 제1항에 있어서,상기 메인 제어부는,BSC(Battery system controller);상기 BSC와 제1 통신 라인을 통해 통신 가능하도록 연결된 마스터 컨트롤러; 및상기 BSC와 제2 통신 라인을 통해 통신 가능하도록 연결된 BBMS(Bank battery management system)를 포함하는 것을 특징으로 하는 에너지 저장 장치.
- 제8항에 있어서,상기 배터리 컨테이너는,상기 DC부와 연결되어 상기 DC 라인을 통해 상기 DC 전원을 공급받도록 구성된 하나 이상의 배터리 랙; 및상기 AC부와 연결되어 상기 AC 라인을 통해 상기 전기 계통으로부터 전원을 공급받고, 상기 제1 통신 라인 및 상기 제2 통신 라인을 통해 상기 메인 제어부와 통신 가능하도록 연결된 서브 제어부를 포함하는 것을 특징으로 하는 에너지 저장 장치.
- 제9항에 있어서,상기 서브 제어부는,상기 제1 통신 라인을 통해 상기 마스터 컨트롤러와 통신 가능하도록 연결된 슬레이브 컨트롤러; 및대응되는 배터리 랙의 정보를 모니터링하도록 구성되고, 상기 제2 통신 라인을 통해 상기 BBMS와 통신 가능하도록 연결된 RBMS(Rack battery management system)를 포함하는 것을 특징으로 하는 에너지 저장 장치.
- 제10항에 있어서,상기 마스터 컨트롤러는,상기 배터리 컨테이너가 복수 구비된 경우, 상기 제1 통신 라인을 통해 복수의 배터리 컨테이너에 포함된 복수의 슬레이브 컨트롤러 각각과 직접 연결되도록 구성된 것을 특징으로 하는 에너지 저장 장치.
- 제10항에 있어서,상기 BBMS는,상기 배터리 컨테이너가 복수인 경우, 상기 제2 통신 라인을 통해 복수의 배터리 컨테이너에 포함된 복수의 RBMS와 데이지 체인 방식으로 서로 직렬로 연결되도록 구성된 것을 특징으로 하는 에너지 저장 장치.
- 제9항에 있어서,상기 AC부와 연결되어 상기 AC 라인을 통해 상기 전기 계통으로부터 전원을 공급받고, 제3 통신 라인을 통해 상기 마스터 컨트롤러와 연결되며, 파이프 라인을 통해 상기 배터리 랙 각각과 연결되도록 구성된 주수 컨테이너를 더 포함하는 것을 특징으로 하는 에너지 저장 장치.
- 제13항에 있어서,상기 주수 컨테이너는,상기 마스터 컨트롤러로부터 주수 명령을 수신하면, 내부의 소화액을 상기 파이프 라인으로 출력하도록 구성된 것을 특징으로 하는 에너지 저장 장치.
- 제1항에 있어서,상기 배터리 컨테이너는,일단이 상기 DC 라인에 연결되고, 타단이 상기 하나 이상의 배터리 랙에 연결되도록 구성된 서브 스위치를 포함하는 것을 특징으로 하는 에너지 저장 장치.
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KR20220008140A (ko) | 2020-07-13 | 2022-01-20 | 한양대학교 산학협력단 | 가상 사용자 및 상품 증강을 이용한 콜드-스타트 문제 해결 방안 |
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KR20130055156A (ko) * | 2011-11-18 | 2013-05-28 | 삼성에스디아이 주식회사 | 배터리 관리 모듈의 오류 통보 장치 및 이를 구비한 에너지 저장 시스템 |
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KR20220008140A (ko) | 2020-07-13 | 2022-01-20 | 한양대학교 산학협력단 | 가상 사용자 및 상품 증강을 이용한 콜드-스타트 문제 해결 방안 |
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