WO2023113248A1 - Procédé d'opération de puissance réalisé par un dispositif d'opération de puissance qui fait fonctionner un système de stockage d'énergie sur la base d'un système de conversion de puissance pour relier des batteries hétérogènes, et dispositif d'opération de puissance - Google Patents

Procédé d'opération de puissance réalisé par un dispositif d'opération de puissance qui fait fonctionner un système de stockage d'énergie sur la base d'un système de conversion de puissance pour relier des batteries hétérogènes, et dispositif d'opération de puissance Download PDF

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WO2023113248A1
WO2023113248A1 PCT/KR2022/017644 KR2022017644W WO2023113248A1 WO 2023113248 A1 WO2023113248 A1 WO 2023113248A1 KR 2022017644 W KR2022017644 W KR 2022017644W WO 2023113248 A1 WO2023113248 A1 WO 2023113248A1
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Prior art keywords
battery
power
energy storage
storage system
heterogeneous
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PCT/KR2022/017644
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English (en)
Korean (ko)
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김준형
김해진
홍청표
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서창전기통신 주식회사
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Publication of WO2023113248A1 publication Critical patent/WO2023113248A1/fr

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/28—Arrangements for balancing of the load in a network by storage of energy
    • H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means

Definitions

  • the present invention relates to a power management method and a power management device performed in a power management device that operates an energy storage system based on a power conversion system for linking heterogeneous batteries, and more particularly, to batteries having different states and characteristics.
  • One object of the present invention to solve the above problems is performed in a power management device that operates an energy storage system based on a power conversion system for linking heterogeneous batteries using battery banks formed of batteries having different states and characteristics It is to provide a power management method that can be.
  • Another object of the present invention to solve the above problems is to provide a power management device for operating an energy storage system based on a power conversion system for linking heterogeneous batteries using battery banks formed of batteries having different states and characteristics. is to do
  • a power management method comprising the steps of: collecting state information related to characteristics of each battery used to classify the different types of batteries based on a criterion set in advance for operation of the different types of batteries included in the energy storage system; Classifying the heterogeneous batteries included in the energy storage system based on the determined state information based on the predetermined criterion to determine a plurality of battery banks formed of a plurality of batteries, through the determined plurality of battery banks Detecting the occurrence of an event requesting the supply of power and checking demand information related to the content required to supply power corresponding to the event, a type preset for the plurality of battery banks and the demand information Determining a battery bank for power supply to supply power corresponding to the event among the plurality of battery banks based on the determined battery bank to supply power corresponding to the event based on
  • the power management method performed in a power management device operating an energy storage system based on a power conversion system for linking heterogeneous batteries provides a battery bank for heterogeneous batteries, which may mean batteries having different states or characteristics. It can be configured, and through this, there is an effect of determining an appropriate battery bank in the process of supplying power.
  • the power management device for operating the energy storage system based on the power conversion system for linking heterogeneous batteries of the present invention uses a new battery, a different type of battery, or a battery with a history of use in a supercapacitor or electric vehicle. It is possible to build a charging station based on an energy storage system and a photovoltaic power generation system by utilizing it, and there is an effect of minimizing the additional establishment of a power plant to supply power.
  • the power management device that operates the energy storage system based on the power conversion system for linking heterogeneous batteries of the present invention can perform charging at a time when electricity rates are low, and can perform charging in advance when a demand for charging occurs. By supplying external power based on the charged power, there is an effect of providing higher profits to operators of charging stations.
  • the normal use period of a battery used in an electric vehicle is about 5 to 10 years or 80% of the initial performance. In the case of the following, it can be discarded due to problems such as driving distance, but it is used again to build an energy storage system at a lower cost than an energy storage system using a new battery. There is an effect that can compensate for the waste of resources that may occur or the environment.
  • FIG. 1 is a conceptual diagram illustrating an environment in which a power management method performed in a power management device that operates an energy storage system based on a power conversion system for linking heterogeneous batteries according to an embodiment of the present invention is performed.
  • FIG. 2 is a hardware block diagram of a power management device that performs a power management method for operating an energy storage system based on a power conversion system for linking heterogeneous batteries according to an embodiment of the present invention.
  • FIG. 3 is a flowchart illustrating a power management method performed in a power management device that operates an energy storage system based on a power conversion system for linking heterogeneous batteries according to an embodiment of the present invention.
  • FIG. 4 is a flowchart illustrating a method of determining a plurality of battery banks in a power management method performed in a power management device that operates an energy storage system based on a power conversion system for linking heterogeneous batteries according to an embodiment of the present invention; am.
  • FIG. 5 illustrates a method of determining a battery bank for power supply in a power management method performed in a power management device that operates an energy storage system based on a power conversion system for linking heterogeneous batteries according to an embodiment of the present invention. It is a flow chart.
  • FIG. 6 is a flowchart illustrating a method of interworking with an external system in a power management device operating an energy storage system based on a power conversion system for linking heterogeneous batteries according to an embodiment of the present invention.
  • a power management method comprising the steps of: collecting state information related to characteristics of each battery used to classify the different types of batteries based on a criterion set in advance for operation of the different types of batteries included in the energy storage system; Classifying the heterogeneous batteries included in the energy storage system based on the determined state information based on the predetermined criterion to determine a plurality of battery banks formed of a plurality of batteries, through the determined plurality of battery banks Detecting the occurrence of an event requesting the supply of power and checking demand information related to the content required to supply power corresponding to the event, a type preset for the plurality of battery banks and the demand information Determining a battery bank for power supply to supply power corresponding to the event among the plurality of battery banks based on the determined battery bank to supply power corresponding to the event based on
  • the state information may include at least one of a C-RATE value meaning a characteristic related to charging and discharging of each battery of the different types of batteries included in the energy storage system and information on installed capacity.
  • the C-RATE value of the heterogeneous battery is used as a criterion corresponding to the predetermined criterion in order to classify the heterogeneous battery included in the energy storage system based on the state information. Comparing with a value, determining a type corresponding to each battery among a plurality of types set to be used in the process of supplying power through the plurality of battery banks based on the comparison result, and determining the determined type
  • the method may include determining the plurality of battery banks by grouping the heterogeneous batteries included in the energy storage system based on batteries having the same type.
  • the plurality of types refer to types in which the time condition for managing the heterogeneous battery based on the C-RATE value, response speed, and installed capacity of the heterogeneous battery requires long-time-based power management.
  • the condition for the time for managing the heterogeneous battery based on the type of cycle and the C-RATE value of the heterogeneous battery may include a short cycle type, which means a type requiring short time-based power management. .
  • the type of the heterogeneous battery may be determined as the long cycle type when the C-RATE value of the heterogeneous battery is less than the reference value based on the comparison result. there is.
  • the type of the heterogeneous battery may be determined as the short cycle type when the C-RATE value of the heterogeneous battery is greater than or equal to the reference value based on the comparison result. there is.
  • the demand information may include information about the value of output required through the supply of power, information about the amount of strategy required through the supply of power, and information about the time at which the amount of power should be supplied.
  • the determining of the battery bank for power supply may include determining one type of the plurality of types of a value of time corresponding to information about time included in the demand information among the plurality of battery banks. comparing one of the plurality of types determined for the plurality of battery banks based on the comparison result with a value of a preset reference time of the battery bank to supply the power among the plurality of battery banks Determining the type of battery bank for use and determining a battery bank having a highest output value and amount of power closest to the battery bank based on the information on the output value and the amount of power among the battery banks of the determined type The step of determining the battery bank for power supply may be included.
  • a power management device operating an energy storage system based on a power conversion system for linking heterogeneous batteries is a power conversion system (PCS, Power Conversion System) for linking heterogeneous batteries.
  • PCS Power Conversion System
  • ESS Energy Storage System
  • ESS Energy Storage System
  • the at least one The instruction collects state information related to the characteristics of each battery used to classify the heterogeneous batteries based on a criterion set in advance for operation of the heterogeneous batteries included in the energy storage system, and based on the collected state information.
  • first, second, A, and B may be used to describe various components, but the components should not be limited by the terms. These terms are only used for the purpose of distinguishing one component from another. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element, without departing from the scope of the present invention.
  • the terms and/or include any combination of a plurality of related recited items or any of a plurality of related recited items.
  • FIG. 1 is a conceptual diagram illustrating an environment in which a power management method performed in a power management device that operates an energy storage system based on a power conversion system for linking heterogeneous batteries according to an embodiment of the present invention is performed.
  • a power management method performed in a power management device operating an energy storage system based on a power conversion system for linking heterogeneous batteries is an energy storage system (ESS, Energy Storage System). ) (100) and the power management device 200, and more specifically, it can be performed based on the initiative of the power management device 200.
  • ESS Energy Storage System
  • the energy storage system 100 may include a battery bank formed of a plurality of batteries, and may include a plurality of battery banks formed of a plurality of batteries in this way.
  • the state or characteristics of each battery included in the plurality of banks may have similar or identical states or characteristics based on a preset standard.
  • the energy storage system 100 may form a battery bank to include a plurality of batteries having similar or identical states or characteristics.
  • external power may be supplied based on a power conversion system (PCS).
  • PCS power conversion system
  • the power management device 200 described in one embodiment of the present invention may mean a device for controlling or managing the operation of the energy storage system 100, and more specifically, in the energy storage system 100 When external power supply is requested based on the included plurality of battery banks, it may control the plurality of battery banks to supply power or manage the plurality of battery banks for this purpose.
  • the power management device 200 may determine the type of each battery bank based on the characteristics or states of each battery included in the plurality of battery banks, and supply power from the outside based on the determined type of battery bank. When this is requested, it may play a role of appropriately determining a battery bank for supplying power.
  • the power management device 200 may perform a power management method performed by a power management device that operates an energy storage system based on a power conversion system for linking heterogeneous batteries according to an embodiment of the present invention.
  • the energy storage system 100 and the power management device 200 may be in a state in which they can communicate with each other so as to transmit or receive information necessary for performing the power management method.
  • the power management device 200 may be in a state capable of communicating with some of a plurality of components included in the energy storage system 100, and the power management device 200 itself is included in the energy storage system 100. It may be one of a plurality of components.
  • FIG. 2 is a hardware block diagram of a power management device that performs a power management method for operating an energy storage system based on a power conversion system for linking heterogeneous batteries according to an embodiment of the present invention.
  • FIG. 2 the structure of a power management device 300 performing a power management method for operating an energy storage system based on a power conversion system for linking heterogeneous batteries according to an embodiment of the present invention is shown in FIG. 1 .
  • the power management device 200 described above may be described as an example.
  • the power management device 300 performing the power management method for operating an energy storage system based on a power conversion system for linking heterogeneous batteries according to an embodiment of the present invention includes at least one processor 310 and a memory 320 for storing instructions instructing at least one processor to perform at least one step.
  • the at least one processor 310 may include a central processing unit (CPU), a graphics processing unit (GPU), or a dedicated processor in which methods according to embodiments of the present invention are performed. can mean
  • Each of the memory 320 and the storage device 360 may include at least one of a volatile storage medium and a non-volatile storage medium.
  • the memory 320 may include at least one of a read only memory (ROM) and a random access memory (RAM).
  • the power management device 300 may include a transceiver 330 that performs communication through a wireless network.
  • the battery life prediction device 300 may further include an input interface device 340 , an output interface device 350 , a storage device 360 , and the like. Each component included in the battery life prediction device 300 may be connected by a bus 370 to communicate with each other.
  • At least one step may refer to a step related to a power management method for operating an energy storage system based on a power conversion system for linking heterogeneous batteries according to an embodiment of the present invention. And, more specifically, steps related to an operating method performed in the power management device 300 may be included.
  • FIG. 3 is a flowchart illustrating a power management method performed in a power management device that operates an energy storage system based on a power conversion system for linking heterogeneous batteries according to an embodiment of the present invention.
  • a power management method for operating an energy storage system based on a power conversion system for linking heterogeneous batteries may be performed in a power management device, and more specifically, FIG. 1 This may be performed in the energy storage system 100 and the power management device 200 described with reference to and the power management device 300 described with reference to FIG. 2 .
  • a power management device performing a power management method for operating an energy storage system based on a power conversion system for linking heterogeneous batteries is configured in advance for operation of heterogeneous batteries included in an energy storage system.
  • State information related to characteristics of each battery used to classify different types of batteries based on set criteria may be collected (S310).
  • the power management device can detect a heterogeneous battery mounted or connected to the energy storage system, and when the installation or connection of a heterogeneous battery is detected, a need arises to collect state information of the corresponding heterogeneous battery. can judge
  • the state information collected by the power management device is at least one of information on the value of C-RATE, which means a characteristic related to charging and discharging of each battery for different types of batteries included in the energy storage system, and information on the installed capacity battery. It may include one, and here, the information on the installed capacity battery may mean the type of the installed capacity battery.
  • heterogeneous batteries may mean batteries with different values of C-RATE, which means characteristics related to charging and discharging of each battery, or batteries of different types, or the same type but with different remaining capacity depending on the usage condition.
  • a C-RATE value for a different type of battery may be used as an index for output versus capacity of the battery, and when the output versus capacity is 100%, this may be referred to as 1 C-RATE.
  • the power management device may determine a plurality of battery banks formed of a plurality of batteries by classifying the heterogeneous batteries included in the energy storage system based on the collected state information based on a preset criterion (S320).
  • FIG. 4 is a flowchart illustrating a method of determining a plurality of battery banks in a power management method performed in a power management device that operates an energy storage system based on a power conversion system for linking heterogeneous batteries according to an embodiment of the present invention; am.
  • a power management device performing a power management method for operating an energy storage system based on a power conversion system for linking heterogeneous batteries according to an embodiment of the present invention provides an energy storage system based on state information.
  • the C-RATE value of the heterogeneous battery may be compared with a reference value corresponding to the preset criterion (S321).
  • the reference value corresponding to the preset criterion may mean a value for distinguishing the type of condition for the time for managing the heterogeneous battery based on the C-RATE value of the heterogeneous battery, and is the same as the C-RATE. It may be set as a unit value (eg, when the value of C-RATE is a number having a value of 0 or more, a reference value corresponding to a preset criterion may also be set to a number having a value of 0 or more).
  • the power management device may determine a type corresponding to each battery among a plurality of types set to be used in a process of supplying power through a plurality of battery banks based on the comparison result (S322).
  • the plurality of types determined by the power management device are based on the C-RATE value, response speed, and installed capacity of the heterogeneous battery, and the condition for time for managing the heterogeneous battery requires long-term power management.
  • the long cycle type meaning the type and the type requiring short time-based power management in which the condition for managing the time for managing the heterogeneous battery based on the C-RATE value, response speed, and installed capacity of the heterogeneous battery means the type It can include only the type of period.
  • the power management device may determine the type of the heterogeneous battery as a long cycle type among a plurality of types when the C-RATE value of the heterogeneous battery is less than the reference value based on the comparison result.
  • the power management device may determine the type of the heterogeneous battery as a short cycle type among a plurality of types when the C-RATE value of the heterogeneous battery is greater than or equal to the reference value based on the comparison result.
  • the power management device may determine a plurality of battery banks by grouping the different types of batteries included in the energy storage system by batteries having the same type based on the determined type (S323).
  • the power management device may determine a plurality of battery banks by grouping batteries having the same type based on the determined type of the plurality of heterogeneous batteries included in the energy storage system. Additionally, the power management device may determine a plurality of battery bankers to include a preset number of batteries.
  • the power management device may determine a plurality of battery banks having the same type when there are more than a preset number of different types of batteries. In this case, the power management device may determine a plurality of banks by grouping batteries having a C-RATE value having the most similar range with respect to heterogeneous batteries having the same type.
  • a power management device performing a power management method for operating an energy storage system based on a power conversion system for linking heterogeneous batteries according to an embodiment of the present invention generates power through a plurality of determined battery banks. By detecting the occurrence of an event requesting supply of, it is possible to check demand information related to content required to supply power corresponding to the event (S330).
  • the power management device may detect an external device electrically connected to the energy storage system (eg, a device requesting power supply). Also, the power management device may detect a request for supply of power received from an external device to the energy storage system.
  • an external device electrically connected to the energy storage system eg, a device requesting power supply.
  • the power management device may detect a request for supply of power received from an external device to the energy storage system.
  • an event requesting power supply occurs. can be detected or judged as such.
  • the power management device may request demand information related to content requested to supply power to an external device electrically connected to the energy storage system or an external device that has requested supply of power to the energy storage system, and respond to this request.
  • Demand information can be received and checked.
  • the demand information received and checked through a request from the power management device to an external device includes information on the output value required through power supply, information on the amount of strategy required through power supply, and power It may contain information about when the quantity should be supplied.
  • the information on the value of the output required through the supply of power may mean the value of the output required in a process of supplying power from the energy storage system to an external device.
  • the information on the amount of power may mean a value of the amount of power to be supplied by an external device in the energy storage system.
  • the information on the amount of time to supply the amount of power may mean a value of time that may be required to supply the amount of power to be supplied to an external device in the energy storage system.
  • the power management device may determine a battery bank for power supply for supplying power corresponding to an event among a plurality of battery banks based on the type and demand information preset for the plurality of battery banks (S340).
  • FIG. 5 illustrates a method of determining a battery bank for power supply in a power management method performed in a power management device that operates an energy storage system based on a power conversion system for linking heterogeneous batteries according to an embodiment of the present invention. It is a flow chart.
  • a power management device performing a power management method for operating an energy storage system based on a power conversion system for linking heterogeneous batteries according to an embodiment of the present invention provides demand information among a plurality of battery banks. A value of time corresponding to the included time information may be compared with a value of a preset reference time to determine one type among a plurality of types (S341).
  • the power management device may perform a procedure of determining one type preferentially in order to determine a battery bank for power supply among a plurality of types, and for this purpose, a value of a preset reference time and a value included in demand information Values of time corresponding to information about time can be compared with each other.
  • the power management device may determine one of the plurality of types determined for the plurality of battery banks as the type of a battery bank for power supply among the plurality of battery banks based on the comparison result (S342).
  • the power management device selects a short-cycle type among a plurality of types as a type of battery bank for power supply. can be determined by On the other hand, the power management device determines a long period type among a plurality of types as the type of battery bank for power supply when the value of time corresponding to the time information included in the demand information is equal to or greater than the preset reference time value.
  • the power management device selects a first battery bank having a highest output value and an amount of power that is closest to the first battery bank based on the information about the output value and the amount of power among the battery banks of the determined type. It can be determined as a bank (S343).
  • the power management device may need to determine the most appropriate battery bank for power supply among the plurality of battery banks.
  • the power management device may determine the battery bank of the determined type as a battery bank for power supply.
  • the power management device may calculate the determined output value of the battery bank based on output values of the plurality of batteries included in each battery bank. Then, the power management device may calculate the amount of power of the battery bank, which is determined based on the amount of power for the plurality of batteries included in each battery bank.
  • the power management device has a value of output corresponding to the information on the value of output included in the demand information and an amount of power corresponding to the information on the amount of power and a high output value and amount of power that are closest to
  • the first battery bank may be determined as a battery bank for power supply that is most suitable for power supply among a plurality of battery banks.
  • the power management device determines the highest output next to the first battery bank among battery banks of the determined type.
  • a second battery bank having a value and an amount of power may be additionally determined as a battery bank for power supply, and the first battery bank and the second battery bank may be determined as battery banks for power supply.
  • a power management device performing a power management method for operating an energy storage system based on a power conversion system for linking heterogeneous batteries according to an embodiment of the present invention generates an event based on the determined battery bank.
  • Power may be supplied through the energy storage system by controlling the determined battery bank to supply corresponding power (S350).
  • the power management device may determine a battery bank that supplies power to an external device that has requested power supply as a battery bank determined based on steps S310 to S340 among a plurality of battery banks, and in the determined battery bank
  • the energy storage system can be controlled so that power can be supplied to an external device.
  • the power management device may transmit identification information indicating a battery bank determined based on steps S310 to S340 among a plurality of battery banks included in the energy storage system to the energy storage system, and in the energy storage system Power may be supplied to an external device through a battery bank corresponding to the identification information received from the operating device.
  • a power management device that performs the power management method for operating an energy storage system based on a power conversion system for linking heterogeneous batteries according to an embodiment of the present invention is a battery having different states or characteristics.
  • a battery bank can be determined using a heterogeneous battery, which means, and a battery bank that supplies power to an external device can be efficiently determined using this.
  • an energy storage system based on a power conversion system for linking heterogeneous batteries according to an embodiment of the present invention may operate by itself or in conjunction with an external energy generation system.
  • an energy storage system based on a power conversion system for linking heterogeneous batteries according to an embodiment of the present invention may operate in conjunction with a photovoltaic power generation system and an enterprise management system (EMS). .
  • EMS enterprise management system
  • a power management device that performs a power management method for operating an energy storage system based on a power conversion system for linkage may perform the power management method by controlling all of the energy storage system, the solar power generation system, and the integrated control system.
  • the power management device considers the cost related to the supply of power among the energy storage system and the photovoltaic power generation system based on the integrated control system and the state of charge that can supply power to external devices through the energy storage system. It is possible to determine a time point for charging or a means for charging (eg, a photovoltaic power generation system or an external charging system).
  • the power management device may manage state information on a plurality of battery banks included in the energy storage system based on the integrated control system, and more specifically, state information on the plurality of battery banks in the integrated control system Based on this, it is possible to monitor whether an error occurs in each battery bank, and through this, it is possible to determine whether a plurality of batteries included in each battery bank need to be replaced.
  • the power management device monitors whether or not an abnormality occurs in each battery bank based on state information on a plurality of batteries in the integrated control system, and determines the need for replacement of the plurality of batteries included in each battery bank. It is possible to define the criterion used to determine whether or not
  • the power management device in the process of performing a power management method for operating an energy storage system based on a power conversion system for linking heterogeneous batteries according to an embodiment of the present invention, additionally controls a plurality of batteries in an integrated control system. Based on the state information for each battery bank, it is possible to monitor whether or not an error occurs in each battery bank, and to define criteria used to determine whether a plurality of batteries included in each battery bank need to be replaced.
  • the power management device determines the ideal value based on the value of power when charging the battery, the value of power when discharging, the balancing state of the voltage for the cells of each battery bank, and the balancing state of the current for the cells of each battery bank. The cases where this occurs can be accumulated and confirmed. Thereafter, the power management device determines the value of power when the battery is charged, the value of power when the battery is discharged, the voltage balancing state of the cells of each battery bank, and the current balancing of the cells of each battery bank. state can be extracted.
  • the power management device determines the value of the extracted power when charging the battery, the value of power when discharging, the balancing state of the voltage for the cells of each battery bank, and the balancing state of the current for the cells of each battery bank. It can be defined as a criterion for judging cases.
  • the power management device generates a power value when the battery is charged, a power value when the battery is discharged, a voltage balancing state for the cells of each battery bank, and a current balancing state for the cells of each battery bank.
  • learning can be performed through a preset artificial intelligence-based learning algorithm.
  • the power management device determines the value of power at the time of charging, the value of power at the time of discharging, the balancing state of the voltage for the cells of each battery bank, and the value of the power for the cells of each battery bank. Although it has been described as checking the current balancing state, it may not necessarily be limited thereto. In other words, when an abnormality occurs, the power management device may further check weather-related information and information related to power use according to a load.
  • the power management device may transmit information on the defined criteria to the integrated control system, and based on the information on the defined criteria, the integrated control system monitors the plurality of battery banks included in the energy storage system. can support you to do it.
  • the preset standard in the power management device is a value related to a simple state, but the criterion may be defined in the form of a scenario related to a change in state rather than a value related to a simple state.
  • the power management device when there is a battery bank determined to have an abnormality among a plurality of battery banks included in the energy storage system by the integrated control system, supplies the battery to the corresponding battery bank without stopping the operation of the entire energy storage system. You can either replace the included battery or re-determine the battery bank that contains the corresponding battery. In this case, a specific process of determining the battery bank in the power management device may be similar to or identical to that previously described.
  • the power management device is an energy storage system based on an integrated control system, considering the cost related to supplying power among the energy storage system and the photovoltaic power generation system and the state of charge that can supply power to external devices through the energy storage system.
  • a preset algorithm may be performed to determine a charging time or a means for charging (for example, a photovoltaic power generation system or an external charging system).
  • the energy storage system considers the cost related to the supply of power among the energy storage system and the photovoltaic power generation system and the state of charge that can supply power to external devices through the energy storage system.
  • a specific process of performing a preset algorithm to determine a charging point or a means for charging will be described in more detail with reference to FIG. 6 below. It can be.
  • FIG. 6 is a flowchart illustrating a method of interworking with an external system in a power management device operating an energy storage system based on a power conversion system for linking heterogeneous batteries according to an embodiment of the present invention.
  • a power management device performing a power management method for operating an energy storage system based on a power conversion system for linking heterogeneous batteries according to an embodiment of the present invention
  • the power management device preferentially B. It is possible to determine whether the energy storage system is interlocked with the photovoltaic power generation system (S610).
  • whether or not to interlock is a state in which identification information on the interlocked external system is stored in advance when the external system is interlocked with the power management device so that the power management device can identify the type of interlocked external system.
  • the power management device may compare the first reference rate and the generation cost (S620).
  • the first reference rate compared by the power management device may mean the rate of Korea Electric Power, which may mean an external charging system, and the generation cost is necessary or required to generate power in the solar power generation system.
  • the cost of Korea Electric Power which may mean an external charging system
  • the power management device may provide a charging-related service in response to a request for power supply based on solar power generation (S630).
  • the power management device may compare the charge amount of the energy storage system with the first reference (S640).
  • the first criterion may mean a value of a criterion for determining whether power can be supplied to the outside through the energy storage system by the power management device, and can be compared with the value of the remaining charge amount of the energy storage system. It may be preset as a standard value.
  • the power management device may compare the first reference rate with the energy storage system rate (S650).
  • the first reference rate may refer to a rate of Korea Electric Power, which may refer to an external charging system, and the rate of the energy storage system may refer to a rate for supplying power to the outside through the energy storage system. It may mean a cost necessary or required in the case.
  • the power management device may provide a service related to charging in response to a request for power supply based on the energy storage system (S660).
  • the power management device requests power supply based on the first system when the charge amount of the energy storage system is equal to or less than the first reference value in step S640 or when the first reference rate is equal to or less than the charge of the energy storage system in step S650.
  • a service related to charging may be provided (S670).
  • the first system may refer to a system of Korea Electric Power Corporation, which may refer to an external charging system as previously described.
  • the power management device performing the power management method for operating the energy storage system based on the power conversion system for linking heterogeneous batteries is an external system, photovoltaic power generation. It can supply power more efficiently by interlocking with the system, integrated control system and external charging system.
  • the methods according to the present invention may be implemented in the form of program instructions that can be executed by various computer means and recorded on a computer readable medium.
  • Computer readable media may include program instructions, data files, data structures, etc. alone or in combination.
  • Program instructions recorded on a computer readable medium may be specially designed and configured for the present invention or may be known and usable to those skilled in computer software.
  • Examples of computer readable media may include hardware devices specially configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like.
  • examples of program instructions may include not only machine code generated by a compiler but also high-level language code that can be executed by a computer using an interpreter or the like.
  • the hardware device described above may be configured to operate with at least one software module to perform the operations of the present invention, and vice versa.
  • the above-described method or device may be implemented by combining all or some of its components or functions, or may be implemented separately.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

L'invention divulgue un procédé et un dispositif d'opération de puissance. Le procédé divulgué comprend les étapes consistant : à collecter des informations d'état se rapportant à une caractéristique de chaque batterie utilisée pour classifier des batteries hétérogènes sur la base d'un critère préconfiguré; à classifier des batteries hétérogènes incluses dans un système de stockage d'énergie sur la base des informations d'état de sorte à déterminer une pluralité de bancs de batteries; à détecter la survenue d'un événement pour demander une fourniture d'énergie au moyen de la pluralité de bancs de batteries de sorte à identifier des informations de demande; à déterminer un banc de batteries pour l'alimentation électrique sur la base des informations de demande et d'un type préconfiguré par rapport à la pluralité de bancs de batteries; et à commander le banc de batteries déterminé pour fournir de l'énergie correspondant à l'événement sur la base du banc de batteries déterminé de sorte à fournir l'énergie au moyen du système de stockage d'énergie.
PCT/KR2022/017644 2021-12-13 2022-11-10 Procédé d'opération de puissance réalisé par un dispositif d'opération de puissance qui fait fonctionner un système de stockage d'énergie sur la base d'un système de conversion de puissance pour relier des batteries hétérogènes, et dispositif d'opération de puissance WO2023113248A1 (fr)

Applications Claiming Priority (2)

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KR1020210177880A KR102652000B1 (ko) 2021-12-13 2021-12-13 이종 배터리의 연계를 위한 전력 변환 시스템 기반의 에너지 저장 시스템을 운용하는 전력 운용 장치에서 수행되는 전력 운용 방법 및 전력 운용 장치
KR10-2021-0177880 2021-12-13

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Citations (5)

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Publication number Priority date Publication date Assignee Title
KR101478791B1 (ko) * 2012-11-27 2015-01-02 에스케이씨앤씨 주식회사 전력 관리 방법 및 시스템
KR20150135843A (ko) * 2014-05-26 2015-12-04 에스케이이노베이션 주식회사 하이브리드 에너지 저장 시스템 및 그 제어 방법
US20190089023A1 (en) * 2017-09-15 2019-03-21 Dyson Technology Limited Energy storage system
JP2019530405A (ja) * 2016-09-15 2019-10-17 ナントエナジー，インク． ハイブリッド型バッテリシステム
KR102285079B1 (ko) * 2017-12-29 2021-08-11 고고로 아이엔씨. 배터리 충전 규칙을 결정하고 관리하기 위한 시스템 및 방법

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Publication number Priority date Publication date Assignee Title
KR101792395B1 (ko) * 2016-02-15 2017-11-01 두산중공업 주식회사 에너지 저장 시스템 및 시스템 운용 방법
KR20200050086A (ko) * 2018-10-31 2020-05-11 삼성중공업 주식회사 배터리 랙 관리 시스템

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101478791B1 (ko) * 2012-11-27 2015-01-02 에스케이씨앤씨 주식회사 전력 관리 방법 및 시스템
KR20150135843A (ko) * 2014-05-26 2015-12-04 에스케이이노베이션 주식회사 하이브리드 에너지 저장 시스템 및 그 제어 방법
JP2019530405A (ja) * 2016-09-15 2019-10-17 ナントエナジー，インク． ハイブリッド型バッテリシステム
US20190089023A1 (en) * 2017-09-15 2019-03-21 Dyson Technology Limited Energy storage system
KR102285079B1 (ko) * 2017-12-29 2021-08-11 고고로 아이엔씨. 배터리 충전 규칙을 결정하고 관리하기 위한 시스템 및 방법

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