KR102030872B1 - Apparatus and method for designing of specification of energy storage system - Google Patents
Apparatus and method for designing of specification of energy storage system Download PDFInfo
- Publication number
- KR102030872B1 KR102030872B1 KR1020150161003A KR20150161003A KR102030872B1 KR 102030872 B1 KR102030872 B1 KR 102030872B1 KR 1020150161003 A KR1020150161003 A KR 1020150161003A KR 20150161003 A KR20150161003 A KR 20150161003A KR 102030872 B1 KR102030872 B1 KR 102030872B1
- Authority
- KR
- South Korea
- Prior art keywords
- output
- battery rack
- pcs
- ess
- energy storage
- Prior art date
Links
Images
Classifications
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/3644—Constructional arrangements
- G01R31/3647—Constructional arrangements for determining the ability of a battery to perform a critical function, e.g. cranking
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/392—Determining battery ageing or deterioration, e.g. state of health
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention relates to an apparatus and method for designing specifications of an energy storage system, and more particularly, to an energy storage system in which a power conversion system (PCS) is separately provided in each of parallel battery racks. In order to design the specifications of the ESS according to the requirements of the Energy Storage System (ESS), the output of the PCS is set to satisfy the required output of the ESS according to the number of battery racks, and the discharge rate of the battery rack according to the set PCS output, The present invention relates to an apparatus and method for designing an energy storage system that calculates an available capacity and a discharge time in order, and determines the specifications of the ESS after determining whether the output and discharge times of the PCS satisfy the requirements of the ESS.
Description
The present invention relates to an apparatus and method for designing specifications of an energy storage system, and more particularly, to an energy storage system in which a power conversion system (PCS) is separately provided in each of parallel battery racks. In order to design the specifications of the ESS according to the requirements of the Energy Storage System (ESS), the output of the PCS is set to satisfy the required output of the ESS according to the number of battery racks, and the discharge rate of the battery rack according to the set PCS output, The present invention relates to an apparatus and method for designing an energy storage system that calculates an available capacity and a discharge time in order, and determines the specifications of the ESS after determining whether the output and discharge times of the PCS satisfy the requirements of the ESS.
In general, an energy storage system (ESS) installed in a power plant that drives a large power grid or a building that consumes a large amount of power is composed of a plurality of batteries. More specifically, the battery of the ESS is generally a battery rack (battery rack) consisting of a large number of battery modules (Battery Module) can be again composed of a large number, as a result of a large number of batteries gathered in a special space such as air conditioning buildings or containers Can be installed. In this case, a battery management system (BMS) is installed in a plurality of battery racks to monitor and control a control target such as a voltage, a current, a temperature, a circuit breaker, and the like.
Meanwhile, the Power Conversion System (PCS) is installed in the ESS to control the charging and discharging of the battery by controlling the power supplied from the external rotor and the power supplied from the battery rack to the outside, and the energy management system connected to the PCS (Enery). Management System (EMS) controls the output of the PCS based on the monitoring and control results of the BMS described above.
1 is a diagram illustrating a connection between a battery rack and a PCS of a conventional ESS.
1 and 2, the
More specifically, in the case of the specification design method of the ESS 1 having the configuration in which the battery racks 2 connected in parallel are connected to one
However, in the case of the
Accordingly, in order to solve the above-described problems, the present inventors design the specifications of the ESS corresponding to the requirements of the ESS in which the power conversion system is separately provided in each of the parallelly connected battery racks. Set the output of the PCS to satisfy the required output, calculate the discharge rate, usable capacity and discharge time of the battery rack according to the set PCS output in turn, and after determining whether the output and discharge time of the PCS meet the requirements of the ESS It has been invented a specification design apparatus and method for energy storage systems that determine the specifications of the ESS.
The present invention has been made to solve the above-described problems, an object of the present invention is to set the output of the PCS to satisfy the required output of the ESS according to the number of battery racks, discharge rate of the battery rack according to the set PCS output, The available capacity and discharge time are calculated in turn, and after determining whether the output and discharge time of the PCS meet the requirements of the ESS, the ESS specification is determined. It is to provide a specification design apparatus and method of an energy storage system that can design the specifications of the ESS in response to the requirements of the specification.
According to an embodiment of the present invention, there is provided an apparatus for designing an energy storage system (ESS) having a power conversion system (PCS) separately provided in each of a battery rack connected in parallel. The specification design apparatus of the energy storage system includes: a number setting unit configured to set the number of the battery racks; An output setting unit configured to set the output of the PCS such that the output of the PCS satisfies the required output of the ESS according to the number of battery racks; An available capacity calculator configured to calculate an available capacity of the battery rack by using a discharge rate of the battery rack according to the output of the PCS; A discharge time calculator configured to calculate a discharge time of the battery rack; A determination unit determining whether the output of the PCS and the discharge time of the battery rack satisfy the required output and power supply time of the ESS, respectively; And a specification determiner configured to determine the number of battery racks and the output of the PCS as a specification of the ESS corresponding to a result of the determiner.
The specification design apparatus of the energy storage system may further include a requirement specification setting unit for setting a requirement of the ESS.
The required specification of the ESS may include a required output and power supply time of the ESS.
The output setting unit may calculate the output of the PCS by using the following equation.
Equation
Where Pp = output of PCS
Ep = required output of ESS
Pn = Number of PCS = Bn = Number of Battery Racks
The available capacity calculation unit calculates a ratio between the output of the PCS and the capacity of the battery rack as a discharge rate of the battery rack, and uses the available capacity of the battery rack by using a capacity correction constant mapped to the discharge rate of the battery rack. The capacity can be calculated.
The capacity correction constant may include an available capacity ratio, a lifetime factor, and a loss factor.
The available capacity calculating unit may calculate the discharge rate of the battery rack and the available capacity of the battery rack by using the following equation.
Equation
Where C = discharge rate of the battery rack
P p = output of PCS
B c = capacity of the battery rack
B ac = usable capacity of the battery rack
R ac = usable capacity ratio
F life = life factor
F loss = loss factor
The discharge time calculator may calculate the discharge time of the battery rack using the following equation.
Equation
Where B t = discharge time of the battery rack
B ac = usable capacity of the battery rack
P p = output of PCS
The determination unit may determine whether the discharge rate of the battery rack is less than an allowable discharge rate.
The number setting unit determines that the output of the PCS and the discharge time of the battery rack do not satisfy any one of the required output and the power supply time of the ESS, respectively, or the discharge rate of the battery rack is equal to an allowable discharge rate. If exceeded, the number of battery racks may be reset by adding or subtracting the number.
The specification determiner determines that the output of the PCS and the discharge time of the battery rack satisfy the required output and power supply time of the ESS, respectively, and the discharge rate of the battery rack is equal to or less than an allowable discharge rate. The number of racks and the output of the PCS can be determined by the specification of the ESS.
In the specification design method of the ESS, each PCS is provided in each of the parallel connected battery racks, The specification design method of the energy storage system according to an embodiment of the present invention, Step number setting unit for setting the number of the battery rack; Setting, by an output setting unit, an output of the PCS such that the output of the PCS satisfies a required output of the ESS according to the number of battery racks; Calculating a usable capacity of the battery rack by using an available capacity calculation unit using a discharge rate of the battery rack according to the output of the PCS; Calculating a discharge time of the battery rack by a discharge time calculator; Determining, by the determiner, whether the output of the PCS and the discharge time of the battery rack satisfy the required output and power supply time of the ESS, respectively; And determining, by the specification determiner, the number of battery racks and the output of the PCS as the specification of the ESS in response to a result of the determiner.
The specification design method of the energy storage system may further include a requirement specification setting unit to set a requirement of the ESS.
The required specification of the ESS may include a required output and power supply time of the ESS.
The specification design method of the energy storage system may further include calculating, by the output setting unit, the output of the PCS by using the following equation.
Equation
Where Pp = output of PCS
Ep = required output of ESS
Pn = Number of PCS = Bn = Number of Battery Racks
In the spec design method of the energy storage system, the available capacity calculator calculates a ratio between the output of the PCS and the capacity of the battery rack as a discharge rate of the battery rack, and uses a capacity correction constant mapped to the discharge rate of the battery rack. The method may further include calculating an available capacity of the battery rack.
The capacity correction constant may include an available capacity ratio, a lifetime factor, and a loss factor.
The specification design method of the energy storage system may further include calculating the discharge rate of the battery rack and the available capacity of the battery rack by the available capacity calculator using the following equation.
Equation
Where C = discharge rate of the battery rack
P p = output of PCS
B c = capacity of the battery rack
B ac = usable capacity of the battery rack
R ac = usable capacity ratio
F life = life factor
F loss = loss factor
The specification design method of the energy storage system may further include the step of calculating the discharge time of the battery rack by the discharge time calculation unit using the following equation.
Equation
Where B t = discharge time of the battery rack
B ac = usable capacity of the battery rack
P p = output of PCS
The specification design method of the energy storage system may further include determining whether the discharge rate of the battery rack is less than an allowable discharge rate.
In the specification design method of the energy storage system, the number setting unit determines that the output of the PCS and the discharge time of the battery rack do not satisfy any one of the required output and the power supply time of the ESS, respectively, If the discharge rate of the battery rack exceeds the allowable discharge rate, the step of resetting by subtracting the number of the battery rack; may further include.
In the specification design method of the energy storage system, the specification design unit determines that the output of the PCS and the discharge time of the battery rack satisfy the required output and power supply time of the ESS, respectively, and the discharge rate of the battery rack is determined. If less than the allowable discharge rate, the step of designing the number of the battery rack and the output of the PCS to the specification of the ESS; may further include.
An apparatus and method for designing an energy storage system according to an exemplary embodiment of the present invention calculates an available capacity of the battery rack by using a discharge rate of the battery rack according to an output of a set power conversion system (PCS). In addition, the output of the PCS can be set to accurately satisfy the required output of the Energy Storage System (ESS).
In addition, when the discharge rate of the battery rack is less than the allowable discharge rate, by determining the number of the battery rack and the output of the PCS as the specification of the ESS, the effect that can improve the life and safety of the battery rack provided in the ESS Has
1 is a diagram illustrating a connection between a battery rack and a power conversion system of a conventional energy storage system.
3 is a block diagram illustrating a configuration of a specification design apparatus of an energy storage system according to an exemplary embodiment of the present invention.
4 is a flowchart illustrating a procedure of performing a specification design method of an energy storage system according to an exemplary embodiment of the present invention.
Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. Here, the repeated description, well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention, and detailed description of the configuration will be omitted. Embodiments of the present invention are provided to more completely describe the present invention to those skilled in the art. Accordingly, the shape and size of elements in the drawings may be exaggerated for clarity.
Throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, except to exclude other components unless specifically stated otherwise.
In addition, the term "... unit" described in the specification means a unit for processing one or more functions or operations, which may be implemented in hardware or software or a combination of hardware and software.
3 is a block diagram showing the configuration of the
Referring to FIG. 3, the
The
To this end, the requirement
Here, the required specification of the ESS may include a required output and power supply time of the ESS. More specifically, the required output of the ESS may be the amount of power output from the ESS, and the power supply time may be a time for continuously supplying the power of the required output of the ESS described above. For example, when the required output and power supply time of the ESS are 1MW and 1 hour, respectively, the required specification of the ESS may be a power supply specification capable of supplying power of 1MW output to the outside without an external power supply for 1 hour.
In addition, the requirement
<Equation 1>
Where E c = required capacity of ESS
E p = required output of ESS
E t = power supply time of the ESS
The
Here, the battery rack may include a plurality of battery modules, and the PCS may be connected to each battery rack to be connected in parallel between the battery racks.
That is, the ratio of the number of battery racks and PCSs included in the ESS may be 1: 1.
In addition, the battery rack and PCS included in the ESS may each have the same performance.
The
Here, the maximum output of the PCS may be the maximum amount of power that can be supplied to the outside from the PCS according to the performance of the PCS.
More specifically, the
<
Where B n = number of battery racks
E p = required output of ESS
P p '= maximum output of PCS
For example, the
The
More specific description of the
The
At this time, the
Accordingly, the
More specifically, the
<
Where P p = output of PCS
E p = required output of ESS
P n = number of PCS = B n = number of battery racks
For example, when the number of battery racks set from the required output and the
The usable
More specifically, the usable
Here, the capacity of the battery rack may be the capacity according to the operating voltage of the battery rack provided from the manufacturer of the battery rack.
In addition, the capacity correction constant is a constant for correcting the capacity of the battery rack that is changed according to the discharge rate of the battery rack, and may be a predetermined constant through charge and discharge experiments of the battery rack. In addition, the capacity correction constant may include an available capacity ratio, a lifetime factor, and a loss factor.
The usable
<
Where C = discharge rate of the battery rack
P p = output of PCS
B c = capacity of the battery rack
B ac = usable capacity of the battery rack
R ac = usable capacity ratio
F life = life factor
F loss = loss factor
Meanwhile, the capacity correction constant may be mapped for each discharge rate in a table form as shown in Table 1 below.
For example, when the output capacity of the PCS is set to 100 kW and the capacity of the battery rack is 92 kWH, the usable
When the
In this case, the
<Equation 5>
Where B t = discharge time of the battery rack
B ac = usable capacity of the battery rack
P p = output of PCS
For example, when the output time of the PCS is set to 100 kW and the usable capacity of the battery rack calculated from the usable
The
In addition, the
At this time, the
More specifically, the
Through this, the
On the other hand, as a result of the determination of the
Subsequently, the
Subsequently, the
Through this, the
4 is a flowchart illustrating a procedure of performing a specification design method of an energy storage system according to an embodiment of the present invention.
Referring to FIG. 4, in designing an ESS in which PCSs are individually provided in parallel battery racks, the requirement specification setting unit sets a requirement required for the ESS (S401).
Here, the required specification of the ESS may include a required output and power supply time of the ESS. More specifically, the required output of the ESS may be the amount of power output from the ESS, and the power supply time may be a time for continuously supplying the power of the required output of the ESS described above.
At the first time of designing the specification of the ESS, the number setting unit initially sets the number of battery racks using the maximum output of the PCS so as to satisfy the output of the ESS among the required specifications of the ESS (S402).
Here, the maximum output of the PCS may be the maximum amount of power that can be supplied to the outside from the PCS according to the performance of the PCS.
Thereafter, the output setting unit sets the output of the PCS to the maximum output, and the ratio between the output of the set PCS and the capacity of the battery rack set by the available capacity calculator is calculated as the discharge rate of the battery rack (S403).
Here, the capacity of the battery rack may be the capacity according to the operating voltage of the battery rack provided from the manufacturer of the battery rack.
Subsequently, the available capacity calculator calculates the available capacity of the battery rack using the capacity correction constant mapped to the discharge rate of the battery rack (S404).
In addition, the capacity correction constant may be a constant for correcting the capacity of the battery rack changed according to the discharge rate of the battery rack, it may be a predetermined constant through the charge and discharge experiment of the battery rack. In addition, the capacity correction constant may include an available capacity ratio, a lifetime factor, and a loss factor.
When the discharge time calculating unit discharges the battery rack with the output of the set PCS, the discharge time of the battery rack is calculated and calculated as the discharge time of the battery rack (S405).
Subsequently, the determination unit determines whether the output power of the PCS and the discharge time of the battery rack satisfy the required output and power supply time of the ESS, which are required specifications of the ESS, respectively, and whether the discharge rate of the battery rack is less than the allowable discharge rate (S406). When the output of the PCS and the discharge time of the battery rack satisfy the required output and power supply time of the ESS, respectively, and the discharge rate of the battery rack is less than or equal to the allowable discharge rate of the battery rack, the specification determination unit determines the number setting unit. The number of battery racks set and the output of the PCS set from the output setting unit are determined as the specification of the ESS (S407).
On the contrary, if the determination result of the determination unit indicates that the output time of the PCS and the discharge time of the battery rack do not satisfy any one of the required output and power supply time of the ESS, or the discharge rate of the battery rack exceeds the allowable discharge rate of the battery rack, The setting unit resets by adding or subtracting the number of battery racks (S408).
In one embodiment, the number setting unit may reset the number of battery racks by adding "1" to the number of battery racks initially set.
Meanwhile, in one embodiment, the above-described number setting unit resets the number of battery racks by adding "1" to the number of battery racks initially set, but in another embodiment, the number setting unit discharges the output of the PCS and the discharge of the battery rack. The number of battery racks designed for the ESS may be reset by calculating the number of battery racks for each time satisfying the required output and power supply time of the ESS.
That is, in another embodiment, the number setting unit may reset the number of battery racks beyond "1".
Subsequently, the output setting unit resets the output of the PCS corresponding to the reset number of battery racks (S409), and returns to step S403, and re-executes from step S403 using the reset and recalculated values.
On the other hand, the specification design method of the energy storage system using the specification design device of the energy storage system according to an embodiment of the present invention is implemented in the form of program instructions that can be executed by various computer means can be recorded on a computer readable medium have. The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. Program instructions recorded on the media may be those specially designed and constructed for the present invention, or they may be of the kind well-known and available to those having skill in the computer software arts.
Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, optical media such as CD-ROMs, DVDs, and magnetic disks, such as floppy disks. Magneto-optical media, and any type of hardware device specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions may include high-level language code that can be executed by a computer using an interpreter as well as machine code such as produced by a compiler. Such hardware devices may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.
The teachings of the present principles can be implemented as a combination of hardware and software. In addition, the software may be implemented as an application program that is actually implemented on the program storage unit. The application can be uploaded to and executed by a machine that includes any suitable architecture. Preferably, the machine may be implemented on a computer platform having hardware such as one or more central processing units (CPU), computer processor, random access memory (RAM), and input / output (I / O) interfaces. . In addition, the computer platform may include an operating system and micro instruction code. The various processes and functions described herein may be part of micro instruction code or part of an application program, or any combination thereof, and they may be executed by various processing devices including a CPU. In addition, various other peripheral devices such as additional data storage and printers may be connected to the computer platform.
Although described above with reference to a preferred embodiment of the present invention, those skilled in the art will be variously modified and changed within the scope of the invention without departing from the spirit and scope of the invention described in the claims below I can understand that you can.
100: design device of the specification of the energy storage system
110: requirements specification section
120: number setting unit
130: output setting unit
140: usable capacity calculation unit
150: discharge time calculation unit
160: judgment unit
170: specification determination unit
Claims (22)
A number setting unit for setting the number of battery racks;
An output setting unit configured to set the output of the PCS such that the output of the PCS satisfies the required output of the ESS according to the number of battery racks;
An available capacity calculator configured to calculate an available capacity of the battery rack by using a discharge rate of the battery rack according to the output of the PCS;
A discharge time calculator configured to calculate a discharge time of the battery rack;
A determination unit determining whether the output of the PCS and the discharge time of the battery rack satisfy the required output and power supply time of the ESS, respectively; And
And a specification determiner configured to determine the number of the battery racks and the output of the PCS as a specification of the ESS corresponding to the result of the determiner.
Specification design device for energy storage systems.
Characterized in that it further comprises; a requirements specification setting unit for setting the requirements of the ESS;
Specification design device for energy storage systems.
The required specification of the ESS is characterized in that it comprises the required output and power supply time of the ESS,
Specification design device for energy storage systems.
The output setting unit,
To calculate the output of the PCS using the following equation,
Specification design device for energy storage systems.
Equation
Where P p = output of PCS
E p = required output of ESS
P n = number of PCS = B n = number of battery racks
The available capacity calculation unit,
The ratio between the output of the PCS and the capacity of the battery rack is calculated as the discharge rate of the battery rack, and the available capacity of the battery rack is calculated using a capacity correction constant mapped to the discharge rate of the battery rack. Made,
Specification design device for energy storage systems.
The capacity correction constant is characterized in that it comprises an available capacity ratio, life factor and loss factor,
Specification design device for energy storage systems.
The available capacity calculation unit,
A discharge rate of the battery rack and an available capacity of the battery rack are calculated using the following equation,
Specification design device for energy storage systems.
Equation
Where C = discharge rate of the battery rack
P p = output of PCS
B c = capacity of the battery rack
B ac = usable capacity of the battery rack
R ac = usable capacity ratio
F life = life factor
F loss = loss factor
The discharge time calculation unit,
To calculate the discharge time of the battery rack using the following equation,
Specification design device for energy storage systems.
Equation
Where B t = discharge time of the battery rack
B ac = usable capacity of the battery rack
P p = output of PCS
The determination unit,
Determining whether the discharge rate of the battery rack is equal to or less than an allowable discharge rate.
Specification design device for energy storage systems.
The number setting unit,
When the determination result of the determination unit, the output of the PCS and the discharge time of the battery rack does not satisfy any one of the required output and power supply time of the ESS, respectively, or if the discharge rate of the battery rack exceeds the allowable discharge rate, Resetting by adding or subtracting the number of battery racks,
Specification design device for energy storage systems.
The specification determination unit,
If the output of the PCS and the discharge time of the battery rack satisfies the required output and power supply time of the ESS, respectively, and the discharge rate of the battery rack is less than the allowable discharge rate, the number of the battery rack and the determination Characterized in that the output of the PCS to the specification of the ESS,
Specification design device for energy storage systems.
Setting a number of battery racks by a number setting unit;
Setting, by an output setting unit, an output of the PCS such that the output of the PCS satisfies a required output of the ESS according to the number of battery racks;
Calculating a usable capacity of the battery rack by using an available capacity calculation unit using a discharge rate of the battery rack according to the output of the PCS;
Calculating a discharge time of the battery rack by a discharge time calculator;
Determining, by the determiner, whether the output of the PCS and the discharge time of the battery rack satisfy the required output and power supply time of the ESS, respectively; And
And determining, by the specification determiner, the number of battery racks and the output of the PCS as the specification of the ESS, in response to a result of the determiner.
How to design specifications for energy storage systems.
Characterized in that the requirements specification setting step for setting the requirements of the ESS;
How to design specifications for energy storage systems.
The required specification of the ESS is characterized in that it comprises the required output and power supply time of the ESS,
How to design specifications for energy storage systems.
And calculating, by the output setting unit, an output of the PCS using the following equation.
How to design specifications for energy storage systems.
Equation
Where P p = output of PCS
E p = required output of ESS
P n = number of PCS = B n = number of battery racks
The available capacity calculator calculates a ratio between the output of the PCS and the capacity of the battery rack as a discharge rate of the battery rack, and calculates an available capacity of the battery rack using a capacity correction constant mapped to the discharge rate of the battery rack. Characterized in that it further comprises;
How to design specifications for energy storage systems.
The capacity correction constant is characterized in that it comprises an available capacity ratio, life factor and loss factor,
How to design specifications for energy storage systems.
And calculating the available capacity of the battery rack by the available capacity calculator using the following equation.
How to design specifications for energy storage systems.
Equation
Where C = discharge rate of the battery rack
P p = output of PCS
B c = capacity of the battery rack
B ac = usable capacity of the battery rack
R ac = usable capacity ratio
F life = life factor
F loss = loss factor
And a step of calculating the discharge time of the battery rack by the discharge time calculating unit using the following equation.
How to design specifications for energy storage systems.
Equation
Where B t = discharge time of the battery rack
B ac = usable capacity of the battery rack
P p = output of PCS
And determining, by the determiner, whether a discharge rate of the battery rack is less than an allowable discharge rate.
How to design specifications for energy storage systems.
The number setting unit determines that the output of the PCS and the discharge time of the battery rack do not satisfy any one of the required output and power supply time of the ESS, respectively, or the discharge rate of the battery rack exceeds an allowable discharge rate. If so, the step of resetting by adding or subtracting the number of the battery rack; characterized in that it further comprises,
How to design specifications for energy storage systems.
When the specification determiner determines that the output of the PCS and the discharge time of the battery rack satisfy the required output and power supply time of the ESS, respectively, and the discharge rate of the battery rack is less than an allowable discharge rate, the battery rack is determined. Determining the number of and the output of the PCS as the specification of the ESS; characterized in that it further comprises,
How to design specifications for energy storage systems.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150161003A KR102030872B1 (en) | 2015-11-17 | 2015-11-17 | Apparatus and method for designing of specification of energy storage system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150161003A KR102030872B1 (en) | 2015-11-17 | 2015-11-17 | Apparatus and method for designing of specification of energy storage system |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20170057648A KR20170057648A (en) | 2017-05-25 |
KR102030872B1 true KR102030872B1 (en) | 2019-10-10 |
Family
ID=59051090
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020150161003A KR102030872B1 (en) | 2015-11-17 | 2015-11-17 | Apparatus and method for designing of specification of energy storage system |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR102030872B1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023182628A1 (en) * | 2022-03-21 | 2023-09-28 | 주식회사 엘지에너지솔루션 | Energy storage system for optimal operation of newly installed battery rack and control method therefor |
WO2024063281A1 (en) * | 2022-09-19 | 2024-03-28 | 주식회사 엘지에너지솔루션 | Apparatus and method for establishing operation plan for battery system comprising newly installed batteries |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101951849B1 (en) * | 2017-11-09 | 2019-02-25 | 한전케이디엔주식회사 | Estimation of ess capacity and economic analysis system using i-smart data |
KR102568487B1 (en) * | 2018-04-16 | 2023-08-21 | 주식회사 케이티 | Apparatus and method for controlling energy storagy system |
KR102450205B1 (en) * | 2020-05-14 | 2022-10-04 | 효성중공업 주식회사 | Output Distribution Method for Power Supplying System |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004301784A (en) | 2003-03-31 | 2004-10-28 | Yazaki Corp | Dischargeable capacity estimating method and device for battery |
KR101039430B1 (en) | 2009-09-28 | 2011-06-08 | 한국전력공사 | System and Method for Estimating Battery Capacity of Microgrid |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009027991A1 (en) * | 2009-07-24 | 2011-01-27 | Robert Bosch Gmbh | Power supply assembly |
KR101156535B1 (en) | 2010-01-18 | 2012-06-21 | 삼성에스디아이 주식회사 | Apparatus for energy storage, operation method thereof and energy storage system |
KR101367686B1 (en) * | 2011-12-12 | 2014-02-28 | 한국전기연구원 | Capacity Estimation Method of Plural Energy Storage Devices for Grid Connection of Intermittent Generation |
-
2015
- 2015-11-17 KR KR1020150161003A patent/KR102030872B1/en active IP Right Grant
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004301784A (en) | 2003-03-31 | 2004-10-28 | Yazaki Corp | Dischargeable capacity estimating method and device for battery |
KR101039430B1 (en) | 2009-09-28 | 2011-06-08 | 한국전력공사 | System and Method for Estimating Battery Capacity of Microgrid |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023182628A1 (en) * | 2022-03-21 | 2023-09-28 | 주식회사 엘지에너지솔루션 | Energy storage system for optimal operation of newly installed battery rack and control method therefor |
WO2024063281A1 (en) * | 2022-09-19 | 2024-03-28 | 주식회사 엘지에너지솔루션 | Apparatus and method for establishing operation plan for battery system comprising newly installed batteries |
Also Published As
Publication number | Publication date |
---|---|
KR20170057648A (en) | 2017-05-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR102030872B1 (en) | Apparatus and method for designing of specification of energy storage system | |
US9389660B2 (en) | Rack server system and operation method applicable thereto | |
KR101661704B1 (en) | Microgrid energy management system and power storage method of energy storage system | |
CN104063031A (en) | Dynamic Response Improvement Of Hybrid Power Boost Technology | |
US20200052494A1 (en) | Battery Charge Termination Voltage Adjustment | |
US10297877B2 (en) | Storage battery control device and storage battery control method | |
US20150229128A1 (en) | Method of managing electric power, power management device, and program | |
JP2015056354A (en) | Secondary battery system, control device, control method, and program | |
CN114976376A (en) | Method and system for thermal management control of lithium ion battery system | |
KR101726922B1 (en) | Apparatus and method for controlling of energy storage system using output control | |
KR101619335B1 (en) | Method for managing peak shaving in large scale battery energy storage system | |
KR101499325B1 (en) | Method and apparatus of charging and discharging battery for increasing energy efficiency | |
US8362740B2 (en) | System of a plurality of parallel-connected fuel cell converter devices and method for controlling the system | |
JP2014236602A (en) | Multiple purpose controller, multiple purpose control system and program of multiple storage batteries | |
EP3806259A1 (en) | Control method and device for distributed direct current power supply system | |
US20200166978A1 (en) | Battery Heat Balancing During Peak Power Mode | |
CN116298538A (en) | On-line monitoring method of intelligent capacitance compensation device | |
WO2023018512A2 (en) | Systems and methods for improved battery energy storage system thermal management | |
JP2010128804A (en) | Method for controlling power of a plurality of power supply units, and power control device, and program | |
KR102205315B1 (en) | Programmable battery management system | |
US11990759B2 (en) | Power management system | |
US20180041067A1 (en) | Method and system for allocating a power request to a plurality of batteries connected in parallel | |
CN102521065A (en) | Method for dynamic loading of configuration file through FPGA (field programmable gate array) | |
KR102017886B1 (en) | Apparatus and method for calculating capacity of energy storage system | |
US11545848B1 (en) | Systems and methods for improved battery energy storage system thermal management |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant |