KR102435164B1 - Power control module for an energy storage system and a operating method - Google Patents

Abstract

The present invention provides a communication interface for transmitting and receiving data with a subsystem and a controller for controlling the operation of the subsystem through the communication interface according to an ESS profile generated based on the configuration data when inputting configuration data for the subsystem including, wherein the controller is a profile authoring tool for generating the ESS profile based on the setting data, and a profile implementing the ESS profile in the form of a software API (Application Programming Interface) conforming to an open framework. Based on the ESS profile implemented in the profile adapter through an adapter and the open framework, a main controller that operates the subsystem to control power charging and discharging to be performed; a power control module for an energy storage system comprising a to provide.

Description

POWER CONTROL MODULE FOR AN ENERGY STORAGE SYSTEM AND A OPERATING METHOD

The present invention relates to a power control module for an energy storage system and an operation method thereof, and more particularly, to define and create an ESS profile for an initially connected subsystem, thereby making it easy to control the operation of the subsystem. It relates to a control module and an operating method thereof.

Efforts are being made to maximize the efficiency of electricity use by efficiently utilizing energy consumption worldwide. (referred to as 'ESS') related research and development is being carried out.

Normally, ESS stores idle power at light load (night) and uses it during overload (daytime), contributing to power operation optimization through load leveling, and depending on external environments such as solar and wind power It serves to maintain a stable system state by providing Power Quality Compensator for renewable energy sources with high output fluctuations.

In addition, ESS is a system that can provide ancillary service for maintaining reliability and stability of the power system such as frequency adjustment, reactive power supply and demand, and self-starting power generation. The government is promoting R&D strategy to dominate the market and industrialization power for domestic demonstration and distribution, judging that it is a new industrial technology in the green field that creates added value such as stabilization of power supply and diffusion of new and renewable energy.

Typically, such an ESS is a battery including a plurality of battery cells, a battery module having a battery management system (hereinafter referred to as 'BMS') for predicting deterioration of the battery, calculating the lifespan, and managing and controlling the charge/discharge state. includes The ESS is connected to a plurality of subsystems in addition to the battery module including the above-described battery and BMS. As the sub-system, a power conversion device (Power Conditioning System: hereinafter referred to as 'PCS') for converting and managing the frequency and voltage of power produced from renewable energy according to system and load characteristics, generated from the renewable energy production unit It includes a smart meter that measures the renewable energy, an energy management system for controlling the ESS (Energy Management System: hereinafter referred to as 'EMS'), and the like, and instead of the EMS, a power management system (Power Management System: Hereinafter referred to as 'PMS') may be included.

The subsystems described above have different operating and control technologies depending on the developer, making it difficult to develop the ESS.

Recently, research to develop a standardized open frame-based ESS power control module and profile between the interfaces of the subsystems according to manufacturers is in progress.

It is an object of the present invention to provide a power control module for an energy storage system that is easy to control the operation of a subsystem by defining and creating an ESS profile for an initially connected subsystem, and an operation method thereof.

The power control module for an energy storage system according to the present invention includes a communication interface for transmitting and receiving data to and from a subsystem, and when inputting configuration data for the subsystem, through the communication interface according to an ESS profile generated based on the configuration data a controller for controlling the operation of the subsystem, wherein the controller includes a profile authoring tool for generating the ESS profile based on the setting data, and a software API ( Through the profile adapter implemented in the form of an application programming interface) and the open framework, based on the ESS profile implemented in the profile adapter, a main controller that operates the subsystem to control power charging and discharging to be performed. can

Here, the subsystem, a battery including a plurality of battery cells, a battery management system for state and control of the battery, and the frequency and voltage of power produced from renewable energy to the system and load characteristics It may include at least one of a power conversion system (Power Conditioning System) to convert and manage accordingly.

In addition, the communication interface may be connected to the subsystem to communicate with at least one of Ethernet, RS-485, and CAN.

Here, the profile authoring tool may include a parsing unit that parses the setting data and a generator that generates the ESS profile based on the setting data parsed by the parsing unit.

The ESS profile may be formed in a set standard XML (version 1.0) format.

Also, the generator may generate the ESS profile corresponding to a protocol of the communication interface connected to the subsystem.

In addition, the generation unit generates an operation setting profile based on a system setting profile based on the setting information of the subsystem included in the setting data and preset ESS setting information and the operation information of the subsystem included in the setting data. It is possible to create the ESS profile including.

Also, the operation setting profile may include a time-based operation profile according to a set time rate and an energy-based operation profile according to a set energy consumption amount.

In addition, the ESS profile includes a system setting profile, and an operation setting profile including a time-based operation profile and an energy-based operation profile, and the main controller selects one of the time-based operation profile and the energy-based operation profile. The subsystem can be controlled.

The method of operating a power control module for an energy storage system according to the present invention comprises the steps of: a controller generating an ESS profile based on setting data for a subsystem inputted by the controller; Through the step of implementing in the form of a software API (Application Programming Interface) conforming to the above and the open framework, the controller operates the sub-system based on the ESS profile implemented in the implementation step to conduct power charging and discharging. It may include a step of controlling to be

Here, the generating step may include parsing the configuration data and generating the ESS profile based on the configuration data parsed in the parsing step and a protocol of a communication interface communicatively connected to the subsystem. .

Here, the ESS profile is generated based on the system configuration profile generated based on the configuration information of the subsystem included in the configuration data and preset ESS configuration information and operation information of the subsystem included in the configuration data. One action setting profile may be included.

The operation setting profile may include a time-based operation profile according to a set time rate and an energy-based operation profile according to a set energy consumption amount.

The ESS profile includes a system setting profile, and an operation setting profile including a time-based operation profile and an energy-based operation profile, and the controlling step includes substituting the sub with any one of the time-based operation profile and the energy-based operation profile. You can control the system.

The power control module for an energy storage system and an operating method thereof according to the present invention, when setting data of a subsystem to be connected before system operation is input, define and create an ESS profile according to a communication interface based on the setting data, thereby creating an ESS profile Based on this, there is an advantage of being able to control the operation of subsystems in an open framework.

1 is a system diagram schematically illustrating an energy storage system according to the present invention.
FIG. 2 is a control block diagram showing a control configuration of the power control module shown in FIG. 1 .
3 is a flowchart illustrating a method of operating a power control module for an energy storage system according to the present invention.

Since the present invention can have various changes and can have various embodiments, specific embodiments are illustrated in the drawings and described in detail. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention.

Terms such as first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component. and/or includes a combination of a plurality of related listed items or any of a plurality of related listed items.

When a component is referred to as being “connected” or “connected” to another component, it may be directly connected or connected to the other component, but it is understood that other components may exist in between. it should be On the other hand, when it is said that a certain element is "directly connected" or "directly connected" to another element, it should be understood that the other element does not exist in the middle.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It is to be understood that this does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings. In describing the present invention, in order to facilitate the overall understanding, the same reference numerals are used for the same components in the drawings, and duplicate descriptions of the same components are omitted.

1 is a system diagram schematically illustrating an energy storage system according to the present invention.

Referring to FIG. 1 , an energy storage system may include a power control module 100 for an energy storage system (hereinafter referred to as a 'power control module') and first and second subsystems 210 and 220 .

First, the power control module 100 is a communication interface applied to the first and second subsystems 210 and 220 and the physical connection means connected to implement the energy storage system, as well as various devices connected through the physical connection means. are actively identified and communicated with the first and second subsystems 210 and 220 and various devices using the protocol of the identified communication interface to perform various functions.

A detailed description of the power control module 100 will be described later with reference to FIG. 2 .

Here, the first subsystem 210 may be a battery management system that manages charging, discharging, and states of a battery including a plurality of battery cells.

In addition, the second subsystem 220 may be a power conversion system (Power Conditioning System) that converts and manages the frequency and voltage of power produced from renewable energy according to system and load characteristics.

In the embodiment, the first and second subsystems 210 and 220 are described as a battery management system and a power conversion system, but are not limited thereto.

That is, the first and second subsystems 210 and 220 may include a computer terminal, an energy management system, and a power management system.

In addition, the first and second sub-systems 210 and 220 are for monitoring the environment of the space in which the energy storage system is installed, and a detection device (not shown) for detecting temperature, humidity, and fire occurrence for measuring temperature and humidity; It may be a power using device (not shown) using power managed by the energy storage system, but is not limited thereto.

FIG. 2 is a control block diagram showing a control configuration of the power control module shown in FIG. 1 .

Referring to FIG. 2 , the power control module 100 may include a communication interface 110 and a controller 130 .

The communication interface 110 may be a physical connection means as described in FIG. 1 , and may be connected to a communication interface (not shown) of each of the first and second subsystems 210 and 220 to transmit/receive data. .

Here, the communication interface 110 may be connected to the first and second subsystems 210 and 220 and at least one of Ethernet, RS-485, and CAN.

In the embodiment, the communication interface 110 is connected to the first subsystem 210 by Ethernet to perform Ethernet communication, and it is described as being connected to the second subsystem 220 and CAN to perform CAN communication, but this do not limit

That is, the communication interface 110 may individually communicate with the first and second subsystems 210 and 220 , and the number of subsystems is not limited.

Also, the communication interface 110 may perform short-distance communication or long-distance communication with various devices connected to the first and second subsystems 210 and 220 described above in FIG. 1 , but is not limited thereto.

The controller 130 may include a profile authoring tool 140 , a profile adapter 150 , and a main controller 160 .

The profile authoring tool 140 uses the first setting data (data1) of the first and sub-system 210 and the second setting data (data2) of the second sub-system 220 input from the user interface means (not shown). Based on the first and second ESS profiles (pf1, pf2) can be generated.

That is, the profile authoring tool 140 uses the parsing unit 142 that parses the first and second setting data data1 and data2, respectively, and the first and second setting data data1 and data2 parsed by the parsing unit 142. It may include a generator 144 that generates the first and second ESS profiles pf1 and pf2 based on the ESS profile.

Each of the first and second configuration data data1 and data2 may include configuration information and operation information of each of the first and second subsystems 210 and 220 .

At this time, the generation unit 144 includes the first interface profile pfm1 corresponding to the type of the communication interface (not shown) connected to the first subsystem 210, that is, the protocol, and the first setting data data1. The first system setting profile (pfc1) and the first setting based on the setting information of the first subsystem 210, that is, the manufacturer, model number, manufacturing date and grade information of the first subsystem 210, and preset ESS setting information. The first ESS profile ( pf1) can be created.

In addition, the generation unit 144 includes the second interface profile (pfm2) corresponding to the type of the communication interface (not shown) connected to the second subsystem 220, that is, the protocol, and the second setting data (data2) included in the second set data (data2). 2 based on the setting information of the subsystem 220, that is, the manufacturer, model number, manufacturing date and grade information of the second subsystem 220, and the ESS setting information, the second system setting profile (pfc2) and the second setting data The second ESS profile (pf2) including the second operation setting profile (pfd2) based on the operation information of the second subsystem 220 included in (data2), that is, the detailed operation specification information of the second subsystem 220 ) can be created.

Here, the first operation setting profile pfd1 may include a first time-based operation profile pfd1_1 according to a set time rate and a first energy-based operation profile pfd1_2 according to a set energy consumption amount.

Also, the second operation setting profile pfd2 may include a second time-based operation profile pfd2_1 according to a set time rate and a second energy-based operation profile pfd2_2 according to a set energy consumption amount.

Here, the first and second time-based operation profiles (pfd1_1, pfd2_1) are applied to the first and second subsystems 210 and 220 using a policy in which electric energy rates are differentially charged according to the operation time period, and the first, The two energy-based operation profiles pfd1_2 and pfd2_2 may be applied to the first and second subsystems 210 and 220 in which charges are increased when the energy consumption exceeds the threshold.

In this case, the generating unit 144 may generate the first and second ESS profiles (pf1, pf2) in the set standard XML (version 1.0) format, and convert the first and second ESS profiles (pf1, pf2) to the profile adapter 150 ) to pass

The profile adapter 150 may implement the first and second ESS profiles pf1 and pf2 in the form of a software application programming interface (API) conforming to the open framework.

The main controller 160 controls the operations of the first and second subsystems 210 and 220 through the communication interface 110 based on the first and second ESS profiles pf1 and pf2 implemented in the profile adapter 150 . can do.

In other words, the main controller 160 controls the first and second subsystems 210 and 220 based on the first and second operation setting profiles pfd1 and pfd2 included in the first and second ESS profiles pf1 and pf2. Charging and discharging operations can be controlled.

3 is a flowchart illustrating a method of operating a power control module for an energy storage system according to the present invention.

Referring to FIG. 3 , the controller 130 of the power control module 100 for the energy storage system includes the input first setting data data1 for the first subsystem 210 and the input second subsystem 220 . Parsing the second setting data (data2) for each (S310), the parsed first and second setting data (data1, data2) and the first and second subsystems 210 and 220 and the communication interface 110 communicatively connected Creates the first and second ESS profiles (pf1, pf2) based on the protocol of (S320).

That is, the profile authoring tool 140 included in the controller 130 includes the first setting data data1 and the second subsystem 220 of the first and subsystem 210 input from the user interface means (not shown). The first and second ESS profiles pf1 and pf2 may be generated based on the second setting data data2 of .

In other words, the profile authoring tool 140 parses the first and second setting data (data1, data2), respectively, and based on the parsed first and second setting data (data1, data2), the first and second ESS profiles (pf1) , pf2).

The profile authoring tool 140 includes the first interface profile (pfm1) corresponding to the type of the communication interface (not shown) connected to the first subsystem 210, that is, the protocol, and the first configuration data (data1) included in the first profile authoring tool 140 . The first system setting profile (pfc1) and the first setting data based on the setting information of the subsystem 210, that is, the manufacturer, model number, manufacturing date and grade information of the first subsystem 210, and preset ESS setting information. The first ESS profile pf1 including the first operation setting profile pfd1 based on the operation information of the first subsystem 210 included in (data1), that is, the detailed operation specification information of the first subsystem 210 . ) can be created.

In addition, the profile authoring tool 140 includes the type of the communication interface (not shown) connected to the second subsystem 220, that is, the second interface profile (pfm2) corresponding to the protocol, and the second setting data (data2). The second system setting profile (pfc2) and the second setting based on the setting information of the second subsystem 220, that is, the manufacturer, model number, manufacturing date and grade information of the second subsystem 220, and the ESS setting information. A second ESS profile ( pf2) can be created.

Here, the first operation setting profile pfd1 may include a first time-based operation profile pfd1_1 according to a set time rate and a first energy-based operation profile pfd1_2 according to a set energy consumption amount.

Also, the second operation setting profile pfd2 may include a second time-based operation profile pfd2_1 according to a set time rate and a second energy-based operation profile pfd2_2 according to a set energy consumption amount.

In this case, the profile authoring tool 140 may generate the first and second ESS profiles pf1 and pf2 in the set standard XML (version 1.0) format.

After step (S320), the controller 130 implements the first and second ESS profiles (pf1, pf2) in the form of a software application programming interface (API) conforming to the open framework (S330).

That is, the profile adapter 150 included in the controller 130 converts the first and second ESS profiles (pf1, pf2) generated by the profile authoring tool 140 to a software API (Application) conforming to the Open Framework. It is implemented in the form of programming interface).

After step (S330), the controller 130 may control the operations of the first and second subsystems 210 and 220 through the communication interface 110 according to the first and second ESS profiles pf1 and pf2 ( S340).

That is, the main controller 160 included in the controller 130 operates the first and second subsystems 210 and 220 based on the first and second ESS profiles pf1 and pf2 implemented in the profile adapter 150 . can be controlled through the communication interface 110 .

In other words, the main controller 160 controls the first and second subsystems 210 and 220 based on the first and second operation setting profiles pfd1 and pfd2 included in the first and second ESS profiles pf1 and pf2. Charging and discharging operations can be controlled.

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 in a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, and the like, alone or in combination. The program instructions recorded on the computer readable medium may be specially designed and configured for the present invention, or may be known and available to those skilled in the art of computer software.

Examples of computer-readable media include hardware devices specially configured to store and carry out program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine language codes such as those generated by a compiler, but also high-level language codes that can be executed by a computer using an interpreter or the like. The hardware device described above may be configured to operate as at least one software module to perform the operations of the present invention, and vice versa.

Although it has been described with reference to the above embodiments, it will be understood by those skilled in the art that various modifications and changes can be made to the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. will be able

Claims (14)

a communication interface for transmitting and receiving data to and from the subsystem; and
a controller for controlling the operation of the subsystem through the communication interface according to the ESS profile generated based on the configuration data when inputting configuration data to the subsystem;
The controller is
a profile authoring tool for generating the ESS profile based on the setting data;
a profile adapter implementing the ESS profile in the form of a software application programming interface (API) conforming to an open framework; and
A main controller for controlling power charging and discharging to be performed by operating the subsystem based on the ESS profile implemented in the profile adapter through the open framework;
The profile authoring tool,
generating an interface profile corresponding to a protocol of the communication interface connected to the subsystem;
Create a system setting profile based on the setting information of the subsystem including the manufacturer, model number, manufacturing date and grade information of the subsystem included in the setting data, and preset ESS setting information,
Create an operation setting profile based on the operation information of the subsystem included in the setting data,
A power control module for an energy storage system that generates the ESS profile including the interface profile, the system setting profile, and the operation setting profile. The method according to claim 1,
The subsystem is
A battery including a plurality of battery cells, a battery management system for state and control of the battery, and power conversion that converts and manages the frequency and voltage of power produced from renewable energy according to system and load characteristics A power control module for an energy storage system comprising at least one of a system (Power Conditioning System). The method according to claim 1,
The communication interface is
A power control module for an energy storage system connected to the subsystem to communicate with at least one of Ethernet, RS-485 and CAN. The method according to claim 1,
The profile authoring tool,
a parsing unit that parses the setting data; and
A power control module for an energy storage system comprising a; a generator for generating the ESS profile based on the setting data parsed by the parsing unit. 5. The method according to claim 4,
The ESS profile is
Power control module for energy storage system in the established standard XML (version 1.0) format. delete delete The method according to claim 1,
The action setting profile is
A power control module for an energy storage system comprising a time-based operation profile according to a set time rate and an energy-based operation profile according to a set amount of energy consumption. The method according to claim 1,
The ESS profile is
and the system setting profile, and the motion setting profile including a time-based motion profile and an energy-based motion profile,
The main controller is
A power control module for an energy storage system that controls the subsystem using one of the time-based operation profile and the energy-based operation profile. generating, by the controller, an ESS profile based on the set data for the input subsystem;
implementing, by the controller, the ESS profile in the form of a software application programming interface (API) conforming to an open framework; and
controlling, by the controller, to operate the sub-system based on the ESS profile implemented in the implementation step to drive power charging and discharging through the open framework;
including,
The step of creating the ESS profile comprises:
generating an interface profile corresponding to a protocol of a communication interface connected to the subsystem;
generating a system setting profile based on setting information of the subsystem including manufacturer, model number, manufacturing date and grade information of the subsystem included in the setting data, and preset ESS setting information;
generating an operation setting profile based on operation information of the subsystem included in the setting data; and
generating the ESS profile including the interface profile, the system configuration profile, and the operation configuration profile;
An operating method of a power control module for an energy storage system comprising a. 11. The method of claim 10,
The step of creating an ESS profile based on the set data for the input subsystem is,
parsing the configuration data; further comprising,
An operating method of a power control module for an energy storage system for generating the ESS profile based on the configuration data parsed in the parsing step and the protocol of the communication interface communicatively connected to the subsystem. delete 11. The method of claim 10,
The action setting profile is
A method of operating a power control module for an energy storage system including a time-based operation profile according to a set time rate and an energy-based operation profile according to a set amount of energy consumption. 11. The method of claim 10,
The ESS profile is
and the system setting profile, and the motion setting profile including a time-based motion profile and an energy-based motion profile,
The control step is
An operating method of a power control module for an energy storage system for controlling the subsystem using one of the time-based operation profile and the energy-based operation profile.

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