KR101754688B1 - Power management system supporting various communication interfaces - Google Patents

Abstract

The present invention relates to a power management system for efficiently managing power systems having various communication protocols and supporting various communication interfaces capable of processing information received from power systems, A power conversion system for converting power generated in the power generation facility, and a battery management system for storing power generated in the power generation facility, the power management system comprising: at least the energy management system, An interface for supporting a plurality of communication interfaces for transmitting and receiving information to and from the battery management system; A storage unit for storing information received through the interface unit; And generating a real-time power supply control signal for driving the power conversion system and the battery management system based on the information stored in the storage unit, transmitting the real-time power supply control signal through the interface unit, And information input through the interface unit includes power demand forecast information reflecting a weather condition of a site generated in the energy management system.

Description

POWER MANAGEMENT SYSTEM SUPPORTING VARIOUS COMMUNICATION INTERFACES "

The present invention relates to a power management system supporting a variety of communication interfaces, including a power management system that efficiently manages power systems having various communication protocols, supports various communication interfaces capable of processing information received from power systems, .

In recent years, when there is room for electricity supply and demand in the middle of the night, electric energy is stored in a battery, and electric power is stored in the battery. Interest is increasing rapidly.

The power storage system consists of a battery management system (BMS) that stores power, a power conditioning system (PCS) that converts power when necessary, and an energy management system (EMS, Energy Management System).

First, the power storage system includes CAES, flywheel, sodium sulfur (NaS), redox flow battery (RFB), and lithium ion battery (LiB) .

In addition, various products have been developed for a power conversion system for transferring power through such a storage device to the outside.

On the other hand, in the case of a power management system (PMS, Power Management System) for optimized energy storage and transmission, the power state is monitored by the recent development of the power storage system, the power conversion state is determined, And transmits it to the outside.

However, in the conventional power management system, it is difficult to control various power storage systems that do not have a standardized power protocol, and a variety of communication protocols exist for each power storage system. Therefore, have.

In order to solve the above problems, the present invention supports a variety of communication protocols that are variously applied to the power storage system, thereby supporting various communication interfaces that can easily accommodate various devices used in the power storage system And to provide a power management system.

In addition, the present invention can easily manage the electric power by operating the power conversion system and the battery management system before driving the power generation facility when the power peak is expected, by easily acquiring the field weather situation through various communication interfaces The present invention provides a power management system that supports various communication interfaces.

According to an aspect of the present invention, there is provided an energy management system for analyzing energy-related data, a power conversion system for converting power generated in a power generation facility, and a battery management 1. A power management system operable in conjunction with a system and capable of being used in multiple ways, comprising: an interface supporting a plurality of communication interfaces for transmitting and receiving information with at least the energy management system, the power conversion system and the battery management system; A storage unit for storing information received through the interface unit; And generating a real-time power supply control signal for driving the power conversion system and the battery management system based on the information stored in the storage unit, transmitting the real-time power supply control signal through the interface unit, And information input through the interface unit includes power demand forecast information reflecting a weather condition of a site generated in the energy management system.

According to another aspect of the present invention, there is provided a display device including a display unit for displaying information display data, the control unit generating virtual information through self-simulation, The information display data can be generated based on the information stored in the display unit.

In addition, the real-time power supply control signal may include a signal for driving the power switching system and the battery management system before the generation facility is operated.

The plurality of communication interfaces further support an electric power meter for measuring real-time power consumption and an interface for transmitting and receiving information, and the controller may further include an information display unit for displaying the information display including the electric power consumption measured by the electric power meter Data can be generated.

According to another aspect of the present invention, there is provided an apparatus for measuring a power consumption of a mobile communication terminal, the apparatus comprising: a power measuring unit for measuring a power consumption amount in real time; Information display data can be generated.

Meanwhile, when the control unit detects an abnormality in communication with at least one of the energy management system, the power conversion system, and the battery management system through the interface unit, the information received through the interface unit is accumulated in the storage unit can do.

According to the present invention described above, by supporting a plurality of communication protocols that are variously applied to the power storage system, it is possible to easily accommodate various devices used in the power storage system, thereby facilitating power monitoring and system integration There is an effect.

In addition, it is possible to easily manage the electric power by operating the power conversion system and the battery management system before driving the power generation facility when the power peak is expected, by easily acquiring the situation of the weather through various communication interfaces have.

FIG. 1 illustrates a power management system supporting various communication interfaces according to an embodiment of the present invention. Referring to FIG.
FIG. 2 is a diagram illustrating a structure of a power storage system including a power management system supporting various communication interfaces according to an exemplary embodiment of the present invention. Referring to FIG.
3A to 3F are photographs illustrating a first example of a power management system supporting various communication interfaces according to an embodiment of the present invention.
4 is a diagram illustrating a second example of a power management system supporting various communication interfaces according to an embodiment of the present invention.
5A to 5I are views showing information display data of a power management system supporting various communication interfaces according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. However, the embodiments of the present invention can be modified into various other forms, and the scope of the present invention is not limited to the embodiments described below. The shape and the size of the elements in the drawings may be exaggerated for clarity and the same elements are denoted by the same reference numerals in the drawings.

Meanwhile, the meaning of the terms described in the present application should be understood as follows.

The terms "first "," second ", and the like are used to distinguish one element from another and should not be limited by these terms. For example, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

And throughout the specification, when a part is referred to as being "connected" to another part, it includes not only "directly connected" but also "electrically connected" with another part in between. Also, when a component is referred to as " comprising "or" comprising ", it does not exclude other components unless specifically stated to the contrary .

FIG. 1 is a diagram illustrating a power management system supporting various communication interfaces according to an exemplary embodiment of the present invention. FIG. 2 is a block diagram of a power management system including a power management system supporting various communication interfaces according to an exemplary embodiment of the present invention. A power management system 1000 supporting various communication interfaces according to an embodiment of the present invention includes an interface unit 100, a storage unit 200, and a control unit 300 do.

The interface unit 100 is an expansion slot type structure supporting at least a plurality of communication interfaces for transmitting and receiving information to and from an energy management system, a power conversion system and a battery management system. The interface unit 100 includes an energy management system 2000, a power conversion system 3200 And 4200 and the battery management systems 3300 and 4300 to the storage unit 200 and receives the real time power supply control signal from the control unit 300 to receive the energy management system 2000 and the power conversion system 3200, and 4200 and the battery management systems 3300 and 4300, respectively. The interface unit 100 includes a memory slot 140 on which an SD card or the like can be mounted. The interface unit 100 receives environment setting information or stores environment setting information, log data, and the like on an SD card. The interface unit 100 includes an input / output port 150 to which a USB connector can be connected, receives environment setting information, and stores environment setting information, log data, and the like in an external memory.

Here, the energy management system 2000 receives and collects information collected by the power management system 1000, and provides database-based information, for example, information about weather conditions such as weather, temperature, To analyze power demand. To this end, the energy management system 2000 can support a function of converting into a standard protocol corresponding to a power protocol of various devices in the power storage system, and a function of calculating a power peak according to the power demand analysis. Meanwhile, the energy management system 2000 may communicate with a TCP (Transmission Control Protocol) communication protocol, and the interface unit 100 may also include a slot 120 for a TCP module. At this time, the slot 120 for the TCP module preferably supports 7 channels, and can support telnet for real-time confirmation of log data with the energy management system 2000.

On the other hand, the power conversion system 3200, 4200 can perform operations associating a direct current (DC) system with an alternating current (AC) system, and can be implemented with RS (Recommended Standard) -485/232/422, TCP / (Controller Area Network) communication. Therefore, the interface unit 100 includes the slot 110 for the RS-485/232/422, the slot 120 for the TCP module, and the slot for the CAN 130). At this time, the slot 110 for the RS-485/232/422 can support 2.4 kbps to 921 kbps.

The battery management systems 3300 and 4300 also include a battery management system 3300 and a battery management system 4300 that monitors the current, voltage, temperature, gas, pressure, etc. of the battery cell that holds the battery and manages safety against overcharge, overdischarge, And can communicate by various communication protocols such as RS-485/232/422, TCP / IP, and CAN communication. Accordingly, the interface unit 100 has a slot 110 for the RS-485/232/422, a slot 120 for the TCP module, and a slot for the CAN 130).

The interface unit 100 may further include an expansion slot type structure supporting a communication interface for transmitting and receiving information to and from the power meters 3100 and 4100. The interface unit 100 may receive information received from the power meters 3100 and 4100 To the storage unit (200) and the control unit (300).

Here, the power meters 3100 and 4100 perform an operation of measuring real-time power consumption and can communicate by various communication protocols such as RS-485/232/422 and TCP / IP. Accordingly, the interface unit 100 preferably includes a slot 110 for an RS-485/232/422 and a slot 120 for a TCP module in order to cope with various communication protocols of the power meters 3100 and 4100 . Here, the power meters 3100 and 4100 are devices for measuring a state value such as a power quality analyzer (GIMAC) or a state value such as a voltage, a power, and a current for measuring a state value such as voltage, But is not limited to, a power protection monitoring device (GIPAM).

The storage unit 200 stores information received through the interface unit 100 and provides the information stored in the storage unit 200 to the interface unit 100 or the control unit 300 under the control of the control unit 300. [

The control unit 300 generates a real time power supply control signal for driving the power conversion systems 3200 and 4200 and the battery management systems 3300 and 4300 based on the information stored in the storage unit 200, Transmits the power supply control signal through the interface unit 100, and supports operation for multiple uses among the power management systems 1000. [

At this time, the control unit 300 transmits a real-time power supply control signal to the power conversion systems 3200 and 4200 and the battery management systems 3300 and 4300 through the interface unit 100 before starting the power generation facility, Can be solved. That is, the power management system 1000 drives the power conversion systems 3200 and 4200 and the battery management systems 3300 and 4300 before driving the large-sized industrial motors, building power generation facilities, etc., And it is possible to reduce the maximum peak value, which is a basis for calculating the base charge, thereby saving the electricity bill.

On the other hand, based on the semi-auto mode and the past load pattern in which the power conversion systems 3200 and 4200 and the battery management systems 3300 and 4300 are controlled by the instruction of the energy management system 2000, It can support Auto Mode, which controls power conversion systems (3200, 4200) and battery management systems (3300, 4300) within about 15 minutes to reduce future maximum demand.

In addition, since the control unit 300 makes multiple use among the power management system boards in the power management system 1000, even if one board fails, the power management operation is continuously performed using the pre-stored data . On the other hand, when the communication state with the energy management system 2000 is poor, the control unit 300 acquires from the power meters 3100 and 4100, the power conversion systems 3200 and 4200, and the battery management systems 3300 and 4300 It is possible to store one piece of information in the storage unit 200. In addition, when the board, which is the main equipment of the power management system board in the power management system 1000, is damaged, the controller 300 controls the board, which is driven by the slave equipment, To the main equipment.

On the other hand, the control unit 300 can secure stability while processing a multi-task by mounting a real time OS, set a target value for power demand, and perform an operation to reflect it in real time. In addition, the control unit 300 can also use the real-time OS to transmit information even when connected to power meters 3100 and 4100, power conversion systems 3200 and 4200 and battery management systems 3300 and 4300 using different communication methods The communication speed can be improved such that it can be collected within about 5 seconds.

In addition, the power management system 1000 may further include means for alarming, for example, a buzzer to notify that there is an abnormal state in the operation of the power management system 1000, but the present invention is not limited thereto.

FIGS. 3A to 3F are views illustrating a board and a housing for a power management system supporting various communication interfaces according to an exemplary embodiment of the present invention. Referring to FIGS. 2 to 3F, The power management system supporting the communication interface includes a slot 110 for an RS-485, a slot 120 for a TCP module, a slot 130 for a CAN, a memory slot 140, a general purpose input / The communication slot can be changed according to changes in the external environment by providing a fixed slot type.

3A is a photograph showing an example of a base board, in which a slot 110 for an RS-485 and a slot 130 for a CAN are arranged. In the slot of the base board, The power management system board as shown in FIG. 3E is completed by mounting the main board 1200 as shown in FIG. 3C and the TCP board 1300 as shown in FIG. 3D, The system board may be disposed in the housing as shown in Figure 3F and installed on the wall surface.

At this time, the hardware specification of the power management system 1000 may be configured as shown in Table 1 below, but it is not limited thereto.

4 is a diagram illustrating a second example of a power management system supporting various communication interfaces according to an embodiment of the present invention. The power management system supporting various communication interfaces according to an embodiment of the present invention includes a display unit 400 And an electric power measuring unit 500. [

The display unit 400 displays the information display data input from the control unit 300. [ At this time, the control unit 300 displays the information using the information collected from the power meters 3100 and 4100, the power conversion systems 3200 and 4200 and the battery management systems 3300 and 4300 and stored in the storage unit 200 Data may be generated, or virtual information may be generated through self-simulation to generate information display data using the generated virtual information. That is, the control unit 300 can generate the virtual information through the self-simulation even when the power conversion systems 3200 and 4200 and the battery management systems 3300 and 4300 are not connected.

In addition, the power measuring unit 500 measures real time power consumption and outputs the measured power consumption to the control unit 300. [ At this time, the controller 300 can generate the information display data according to the amount of power input to the power measuring unit 500 even when the controller 300 is not connected to the power meters 3100 and 4100.

5A to 5I are views showing information display data of a power management system supporting various communication interfaces according to an exemplary embodiment of the present invention. Referring to FIGS. 1 to 5L, various communication The operation of the power management system supporting the interface will be described as follows.

First, when the login screen is displayed on the display unit 400 as shown in FIG. 5A, the login button is clicked. At this time, the input unit may be provided with a separate keypad, or the display unit 400 may be provided as an input / output unit of the touch panel.

5B, when the screen for inputting the identification information and the password is displayed on the display unit 400, the preset identification information and the password are input. At this time, the identification information may be input as text, but biometric information may be used if there is a separate recognition means.

When the main screen is displayed on the display unit 400 as shown in FIG. 5C, the power measuring devices 3100 and 4100, the power conversion systems 3200 and 4200, and the battery management And receives information from the systems 3300 and 4300.

Thereafter, the display unit 400 displays general information indicating the change of the used electric power with time and the change of the peak reduction rate as shown in Fig. 5D, the electric power consumption of the electric power meters 3100 and 4100 as shown in Fig. 5E 5F, the user can grasp the information using the map data and display the site information on which the environment can be set. Thus, the user can display the site information, The operating states and power management statuses of the power meters 3100 and 4100, the power conversion systems 3200 and 4200 and the battery management systems 3300 and 4300 can be easily grasped.

5G, the control data of the power conversion system 3200, 4200 as shown in FIG. 5H, the control data of the battery management system 3300, 4300 as shown in FIG. 5I, So that the user can quickly perform control according to the driving states of the power meters 3100 and 4100, the power conversion systems 3200 and 4200 and the battery management systems 3300 and 4300.

At this time, the driving states of the power meters 3100 and 4100, the power conversion systems 3200 and 4200 and the battery management systems 3300 and 4300 can be determined through the information display data displayed on the display unit 400, You can also email critical data and history to managers and others.

When a trouble occurs in the energy management system 2000 or the like, the controller 300 controls the power meters 3100 and 4100, the power conversion systems 3200 and 4200, and the battery management systems 3300 and 4300 And a data logger function for automatically recording data collected from the data logger. That is, the control unit 300 is provided with a data logger function as a function of a TCP logger, a CAN communication logger, and an RS-485/232/422 logger and can store data in the storage unit 200 or the SD card. It is desirable to be able to store a maximum of 32 GB of data corresponding to the amount of data.

At this time, the power management system 1000 is provided with a real time clock (RTC) connected to the built-in battery, thereby securing the reliability of the log data.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be clear to those who have.

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1000: Multiple Power Management System

Claims (6)

An energy management system for analyzing energy related data, a power conversion system for converting power generated in the power generation facility, and a battery management system for storing power generated in the power generation facility, As a result,
An interface for supporting a plurality of communication interfaces for transmitting and receiving information with at least the energy management system, the power conversion system, and the battery management system;
A storage unit for storing information received through the interface unit; And
A real time power supply control signal for driving the power conversion system and the battery management system based on the information stored in the storage unit and transmits the real time power supply control signal through the interface unit, And a control unit for supporting an operation for use,
Wherein the information input through the interface unit includes power demand forecast information reflecting a weather condition of a site generated in the energy management system,
Wherein the control unit includes a real-time OS,
Wherein the interface unit supports telnet for real-time confirmation of log data with the energy management system,
Wherein the real-time power supply control signal supports various communication interfaces including signals to drive the power conversion system and the battery management system prior to power plant activation to prevent occurrence of a power peak condition.
The method according to claim 1,
Further comprising a display section for displaying information display data,
Wherein the controller generates virtual information through self-simulation and supports various communication interfaces for generating the information display data by the virtual information and the information stored in the storage unit.
delete Claim 2
Wherein the plurality of communication interfaces further support an interface for transmitting and receiving information to and from a power meter for measuring real-
Wherein the control unit supports various communication interfaces for generating the information display data including the power consumption measured by the power meter.
The method of claim 2,
Further comprising a power measuring unit for measuring a power consumption in real time,
Wherein the control unit supports various communication interfaces for generating the information display data including the power consumption measured by the power measurement unit.
The method according to claim 1,
Wherein the control unit is configured to store information received via the interface unit in the storage unit when a communication abnormality is detected with at least one of the energy management system, the power conversion system, and the battery management system through the interface unit, Power management system supporting communication interface.

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