KR101396094B1 - Intelligent energy storing system for communal house - Google Patents

Abstract

The present invention relates to an intelligent energy storage system for an apartment house and, more specifically, to an intelligent energy storage system for an apartment house capable of providing analysis data of energy use patterns for the individual household, reducing electric rates through the efficiency use of an energy storage device when an electricity peak charge system is applied, and supplying power to main devices regardless of generator in emergency. The intelligent energy storage system for an apartment house includes an apartment house power management system which supplies power to each individual household of an apartment house and checks and monitors power conditions; and a power control server which conducts optimal operation by collecting and analyzing power information transmitted to each individual household by being connected to the apartment house power management system through a network.

Description

INTELLECTUAL ENERGY STORAGE SYSTEM FOR COMMUNITY HOUSING [0002]

The present invention relates to an intelligent energy storage system of a multi-family house, more particularly, to provide energy use pattern analysis data for each household and to reduce the electricity bill through efficient use of the energy storage device when the power peak charge system is applied And an intelligent energy storage system of a multi-family house capable of supplying power to the main apparatus regardless of the generator in an emergency.

With the development of the industry, the demand for electric power is increasing, and the gap of electricity use between day and night, season, and day is increasing. For this reason, many techniques for reducing the peak load utilizing the surplus power of the system have been rapidly developed. Typical of these technologies are energy storage devices that store the surplus power of the system, Storage System).

Among energy storage devices, a battery energy storage device that supplies energy to a system using a battery is managed by an energy management system (EMS) that manages the energy of various types of power plants that supply energy to the system and the system .

Specifically, the battery energy storage device stores surplus power generated at a nighttime surplus power, a renewable energy source such as wind power, sunlight, etc., and supplies power stored in the battery to the system when a peak load or a system fault occurs. This will stabilize the system power unstably fluctuating by the renewable energy source and achieve maximum load reduction and load leveling.

In particular, such a battery energy storage device can be used in an intelligent power grid (Smart Grid) and a micro power grid (Micro Grid), which are emerging due to the emergence of various new and renewable energy sources.

Korean Patent Publication No. 2012-0025135 discloses an intelligent energy storage system and method. It monitors state information including voltage, current, and temperature of a plurality of battery cells formed in each battery module, and detects overcurrent A plurality of individual battery management systems for managing individual battery management systems, each battery management system for managing a plurality of individual battery management systems, And the central control device selects a power source of one of the plurality of power sources and analyzes the power received from the selected power source on the basis of the state information of each battery cell, And stores it in each battery cell of the selected individual battery module.

Such an intelligent energy storage system and method can be widely used as a charging system for an electric moving means and the like by enabling an energy storage system as an assembly of battery modules and controlling and monitoring electric power through communication with each battery module. It is necessary to improve the price and the number of charge / discharge cycles of the battery module, and there is a limit to be commercialized because it is applied to the technology of utilizing and distributing the energy storage device by predicting the amount of power in the apartment house.

Korea Patent Publication No. 2012-0025135

The present invention provides an intelligent energy storage system of a multi-family house capable of analyzing energy usage pattern for each generation, optimizing usage of the energy storage device, and constructing a power system capable of predicting the amount of energy consumption and transmitting the redundant power backward. do.

Among the embodiments, the intelligent energy storage system of a multi-family house includes a multi-home power management system that supplies power to each household of the multi-family house, checks and monitors the power status, and a multi- And a power control server for collecting and analyzing the power information transmitted by the power control server and performing optimal operation for power use, the intelligent energy storage system of a multi-family house, A water immersion chamber which is transformed to a required voltage to supply power to the load including at least one distributed power source (DG); The power consumption of each household is measured, the surplus power of each household is charged to at least one or more energy storage devices, and then the energy storage device is charged to the energy storage device in an emergency. A zone management room that supplies emergency power to each household; And a generation distribution box that performs a switching function to branch and supply commercial power supplied through the zone management room to a general load in a house and performs a switching function to supply the emergency power to the emergency load, , An optimal operation algorithm for analyzing the energy use pattern of each generation and establishing a power system configuration plan including the distributed power source and the energy storage device is built in, and the optimum use method of the energy storage device is prepared through the optimum operation algorithm And an optimum operation module for predicting the energy usage of each household and transmitting the free power backward.

In one embodiment, the zone management room comprises a distribution box connected to a three-phase four-wire system for each zone; A first meter connected to the distribution box in a single phase to measure an incoming power of the household; A second meter for measuring surplus power of the generation; An inverter connected to a rear end of the second meter to convert the charge power of the energy storage device into commercial power; And an energy storage device installed between the inverter and the power distributing box.

At this time, the first meter and the second meter may be equipped with a transmission / reception module performing a communication function.

In one embodiment, the water immersion chamber may include: a main transformer for converting high-voltage power supplied from the power company into low-voltage commercial power and supplying the power; A rectifier for converting AC power into DC power and supplying the AC power between the main transformer and the distributed power source; A common winding provided between the main transformer and the rectifier and shared by the high voltage side and the low voltage side; And a meter for transmitting various measurement data including a current value and a current value detected through the main transformer to the power control server through a communication terminal.

In one embodiment, the power control server performs data communication with the apartment house power management system or the user terminal, and is configured to perform data communication with the apartment house power management system or the user terminal based on the power state and connection information of the apartment house, A communication module for receiving intelligent storage state information on usage, remaining capacity, and transmitting power control data according to the optimal operation algorithm; A pattern analysis module for analyzing the power state and connection information and the intelligent storage state information to derive and analyze an energy usage pattern for each generation; An optimal operation module for estimating the required power of the energy storage device and setting a priority power supply device application scheme in case of an emergency in order to estimate the electric power charge and the spare electric power for each household by applying the electric power charge and the peak electric power charge to the energy usage pattern for each generation, ; Wherein the power control data is transmitted to the communication module so as to perform optimum automatic control of the power of the apartment house and supply and charge control of the energy storage device according to the scheme established by the optimum operation module, A control module; A report generating module for generating a report including a graph, a chart, a data value, and a commentary under the control of the automatic control module; And a storage module for storing data processed by each module under the control of the automatic control module.

The power control server may transmit a report generated through the report creation module to the user terminal and transmit an alarm message to the user terminal in an emergency.

The intelligent energy storage system of the apartment house of the present invention can analyze the energy usage pattern of each household to propose an optimal operation method of the energy storage device for each household as well as predict the energy consumption in the apartment housing environment, The electric power charges can be reduced when the variable rate is applied and the consumer satisfaction of the variable rate system can be increased.

In addition, the intelligent energy storage system of the apartment house of the present invention minimizes damage due to power outage or other emergency situations through analysis and operation of power supply priority of home appliances according to the remaining capacity of the energy storage device in an emergency, It is possible to present the design directions of the power infrastructure of the next generation housing and contribute to the storage and utilization of new and renewable energy.

1 is a block diagram illustrating an intelligent energy storage system of a multi-family house according to an embodiment of the present invention.
2 is a block diagram illustrating the power management system of the apartment house of FIG.
3 is a view for explaining a charging and discharging process of the energy storage device of FIG.
4 is a block diagram illustrating the power control server of FIG.
5 is a diagram showing an execution screen of the distribution terminal control created in the report creation module of FIG.
FIG. 6 is a graph illustrating daily electrical information generated by the report generating module of FIG. 4; FIG.
FIG. 7 is a graph for explaining the current month forecast information generated by the report generating module of FIG. 4;

The description of the present invention is merely an example for structural or functional explanation, and the scope of the present invention should not be construed as being limited by the embodiments described in the text. That is, the embodiments are to be construed as being variously embodied and having various forms, so that the scope of the present invention should be understood to include equivalents capable of realizing technical ideas. Also, the purpose or effect of the present invention should not be construed as limiting the scope of the present invention, since it does not mean that a specific embodiment should include all or only such effect.

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

The terms "first "," second ", and the like are intended to distinguish one element from another, and the scope of the right 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.

It is to be understood that when an element is referred to as being "connected" to another element, it may be directly connected to the other element, but there may be other elements in between. On the other hand, when an element is referred to as being "directly connected" to another element, it should be understood that there are no other elements in between. On the other hand, other expressions that describe the relationship between components, such as "between" and "between" or "neighboring to" and "directly adjacent to" should be interpreted as well.

It should be understood that the singular " include "or" have "are to be construed as including a stated feature, number, step, operation, component, It is to be understood that the combination is intended to specify that it does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

In each step, the identification code (e.g., a, b, c, etc.) is used for convenience of explanation, the identification code does not describe the order of each step, Unless otherwise stated, it may occur differently from the stated order. That is, each step may occur in the same order as described, may be performed substantially concurrently, or may be performed in reverse order.

The present invention can be embodied as computer-readable code on a computer-readable recording medium, and the computer-readable recording medium includes all kinds of recording devices for storing data that can be read by a computer system . Examples of the computer-readable recording medium include a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like, and also implemented in the form of a carrier wave (for example, transmission over the Internet) . In addition, the computer-readable recording medium may be distributed over network-connected computer systems so that computer readable codes can be stored and executed in a distributed manner.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used predefined terms should be interpreted to be consistent with the meanings in the context of the related art and can not be interpreted as having ideal or overly formal meaning unless explicitly defined in the present invention.

1 is a block diagram illustrating an intelligent energy storage system of a multi-family house according to an embodiment of the present invention.

Referring to FIG. 1, the intelligent energy storage system of the apartment house includes a apartment house power management system 100, a power control server 200, and a user terminal 300. Here, the apartment house power management system 100, the power control server 200, and the user terminal 300 may be connected to the Internet.

The apartment house power management system 100 supplies electric power for each household of the apartment house, checks and monitors the electric power state, and performs energy management efficiently according to the optimal operation algorithm of the electric power control server 200.

The power control server 200 executes an optimal operation algorithm to collect and analyze power information transmitted by each household from the cooperative house power management system 100 to determine optimal operation for power use, optimal use of the energy storage device 121 .

The user terminal 300 is a terminal owned by a user who can access each generation of users or the power control server 200. Normally, a PC is used. However, if the terminal is capable of transmitting and receiving data through a network including the Internet, It can be applied. That is, the user terminal 300 includes at least one of a desktop computer, a notebook PC, a smart phone, a tablet PC, and other portable and mobile terminals.

2 is a block diagram illustrating the power management system of the apartment house of FIG.

Referring to FIG. 2, the apartment house power management system 100 includes a water immersion room 110, a zone management room 120, and a generation distribution box 133.

The power transformer room 110 receives power from the power company through an indoor line and transforms the voltage into a required operating voltage, and includes at least one distributed power source (DG) 111, Supply necessary power.

The power transformer room 110 includes a distributed power source 111, a main transformer 112, a rectifier 113, a common winding 114 and a meter 115.

The distributed power source 111 is a relatively small-sized power source facility distributed or disposed near the center of the power consuming area. In order to supply stable demand, the distributed power source 111 must be connected to the existing power system. ). ≪ / RTI >

The main transformer 112 converts high-voltage power supplied from the power company into low-voltage commercial power and supplies the rectified power to the rectifier 113. The rectifier 113 converts AC power between the main transformer 112 and the distributed power source 111 into DC power And supplies them.

The common winding 114 is provided between the main transformer 112 and the rectifier 113 and is shared between the high voltage side and the low voltage side and the meter 115 has a current value and a current value detected through the main transformer 112 And transmits various measurement data to the power control server 200 through the communication terminal.

Meanwhile, the zone management room 120 supplies commercial power supplied from the water immersion room 110 for each household, charges the surplus electric power for each household to at least one energy storage device 121, And supplies emergency electric power charged to the energy storage device 121 in an emergency state to each household.

This zone management room 120 includes an energy storage device 121, a distribution box 122, first and second meters 123a and 123b, an inverter 124 and a charger 121a.

The distribution box 122 is connected to a three-phase four-wire system for each zone (SecA, SecB, SecC, etc.) to branch power.

The first meter 123a is connected to the distributing box 122 in a single phase to meter the receiving power of the household and the second meter 123b measures the surplus power of the household. The first meter 123a and the second meter 123b may be an electronic meter equipped with a transmission / reception module (not shown) performing a communication function.

The inverter 124 is connected to the rear end of the second meter 123b to convert the charge power of the energy storage device 121 into commercial power and the energy storage device 121 is connected between the inverter 124 and the power distributing box 122 Respectively. The energy storage device 121 may be connected to a charger 121a for charging surplus power.

Each generation 130 includes a generation distribution box 133. The generation distribution box 133 performs a switching function to branch and supply the commercial power supplied through the zone management room 120 to the indoor load 131 And to supply emergency power supplied through the energy storage device 121 to the emergency load 132 in an emergency.

3 is a view for explaining a charging and discharging process of the energy storage device of FIG.

3, the general power is transmitted to the generation distribution box 133 via the second meter, and the electric power charged in the emergency charger 121a is converted into the use electric power through the energy storage device 121 and the inverter 124 And the converted used electric power is transmitted to the generation distribution box 133 via the second meter 123b.

In the intelligent energy storage system of the apartment house, the energy storage device 121 and the generation distribution box 133 are operated in conjunction with each other, and a charge can be charged through the bidirectional meter. Also, charge / discharge operation, Lt; / RTI >

In addition, the generation distribution box 133 may include a power consumption measurement for each circuit breaker (CB), a CB installation for each zone / load, a switching control, a power failure / accident determination function, a LAN, an RS232 and a wireless communication function.

The power control server 200 can perform optimal load distribution through analysis of energy usage patterns, automatic application of the energy storage device 121, comparison after generating a variable rate, and verification of an operation sequence in an emergency.

4 is a block diagram illustrating the power control server of FIG.

4, the power control server 200 includes a communication module 210, a pattern analysis module 220, an optimum operation module 230, an automatic control module 240, a report generation module 250, 260).

The communication module 210 performs data communication with the apartment house power management system 100 or the user terminal 300. That is, the communication module 210 receives the power state and connection information of the apartment house from the meter 115, the first and second meters 123a and 123b, the generation distribution box 133, etc., the voltage and current of the energy storage device 121 The charging state, the current usage amount, and the remaining capacity, and transmits the power control data according to the optimal operation algorithm to the apartment house power management system 100 or the user terminal 300.

The pattern analysis module 220 collects and analyzes the power state, connection information, and intelligent storage state information to derive an energy usage pattern for each generation.

The optimal operation module 230 estimates the power charges and the spare power for each generation by applying the electric power charge and the peak electric power charge to the energy usage pattern for each generation and calculates the necessary capacity of the energy storage device 121 in the emergency, Establish an application plan.

At this time, the optimal operation module 230 provides an optimum use method of the energy storage device 121 through an optimal operation algorithm for establishing a power system configuration plan of the apartment house, predicts the energy usage by household, .

The automatic control module 240 controls the data flow of each of the modules 210, 220, 230, 250 and 260 and controls the optimum automatic control of the apartment house power according to the scheme established by the optimum operation module 230, And transmits power control data to the communication module 210 so as to perform supply and charge control of the power supply 121.

The automatic control module 250 may transmit a report generated through the report generating module 250 to the user terminal 300 and transmit an alarm message for the emergency state to the user terminal 300 in an emergency.

The report generating module 250 can generate a report by deriving a conclusion including a graph, a chart, a data value, and a commentary under the control of the automatic control module 250.

The storage module 260 manages data managed by the modules 210, 220, 230, 240 and 250 in accordance with the control of the automatic control module 250.

FIG. 5 is a diagram showing an execution screen of the distribution box control created in the report creation module of FIG. 4, FIG. 6 is a graph for explaining daily electrical information created by the report creation module of FIG. 4, Fig. 8 is a graph for explaining the current month forecast information created by the creating module. Fig.

Referring to FIG. 5, the administrator can set the usage amount after confirming the current usage amount through the execution screen of the distribution box control. Referring to FIG. 6, the average and group average daily electrical information per household can be confirmed. The current monthly electricity quantity, the target electric energy quantity and the predicted electric energy quantity can be confirmed through the prediction information.

In general, the energy storage device 121 is used for mitigating peak of power demand and stabilizing frequency and voltage, and is used only in an individual house. However, according to the embodiment of the present invention, A plurality of energy storage devices 121 are used in the house to efficiently utilize them as common resources such as power distribution.

In other words, the intelligent energy storage system of the apartment house largely suggests the emergency operation plan of the intelligent power storage when the intelligent power storage operation and the power supply constraint are considered considering the housing environment.

In the intelligent power storage operation method considering the apartment housing environment, the existing energy storage operation method defines the optimal operation method of the individual storage device when the variable rate is given, ), And maximize the utility as a whole by exchanging electric power between the energy storage devices 121 in the apartment house.

As a result, it is possible to calculate the electricity rate by applying arbitrary electric power rate and the electric power rate to the daily energy use pattern in the home, and if the cost is reduced by the power supply of the other household in anticipation of the generation margin power, Can be saved.

 The emergency operation method of intelligent power storage in the case of power supply restriction in case of disaster / power outage or peak capacity is not limited to simply using the power stored in the energy storage device, but the individual energy storage device 121 and the entire energy storage device 121, The first power supply range is selected according to the state of charge of the energy storage device 121, and the power supply amount of the energy storage device 121 is appropriately distributed.

For example, when the external power supply is disconnected at an arbitrary point in time, the power supply amount is allocated to the home appliances according to the remaining capacity of the energy storage device 121, thereby minimizing the power loss. According to the EPRI data, the normal return time from power failure is 90% within one hour. Therefore, the power failure compensation time is set to 30 minutes, which is more than twice the domestic statistics, as the basic operation plan. In the case of increasing the power failure compensation time to one hour, the required capacity of the energy storage device 121 can be reassigned and the application method of the power supply device can be established first.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the following claims It can be understood that

100: Apartment house power management system 200: Power control server
300: User terminal 110: Water Substation
120: Zone management room 130: Household (home)

Claims (6)

A home power management system that supplies power to each household of the apartment house, checks and monitors the electric power state, and a power management system connected to the apartment home power management system to collect and analyze electric power information transmitted by each household, 1. An intelligent energy storage system for a multi-home, comprising a power control server for performing optimal operation,
The apartment house power management system comprises:
A power transforming room for receiving electric power from a power company, transforming the power to a required use voltage, and supplying power to the load including at least one distributed generation (DG);
The power consumption of each household is measured, the surplus power of each household is charged to at least one or more energy storage devices, and then the energy storage device is charged to the energy storage device in an emergency. A zone management room that supplies emergency power to each household;
And a generation distribution box that performs a switching function to branch and supply commercial power supplied through the zone management room to a general load in a house and performs a switching function to supply the emergency power to an emergency load,
The power control server includes:
Wherein the data communication with the apartment house power management system or the user terminal is performed and the intelligent storage state information about the power state and connection information of the apartment house, the voltage and current of the energy storage device, the charging state, A communication module for receiving power control data according to an optimal operating algorithm;
A pattern analysis module for analyzing the power state and connection information and the intelligent storage state information to derive and analyze an energy usage pattern for each generation;
An optimal operation module for estimating the required power of the energy storage device and setting a priority power supply device application scheme in case of an emergency in order to estimate the electric power charge and the spare electric power for each household by applying the electric power charge and the peak electric power charge to the energy usage pattern for each generation, ;
Wherein the power control data is transmitted to the communication module so as to perform optimum automatic control of the power of the apartment house and supply and charge control of the energy storage device according to the scheme established by the optimum operation module, A control module;
A report generating module for generating a report including a graph, a chart, a data value, and a commentary under the control of the automatic control module; And
And a storage module for storing data processed by each module under the control of the automatic control module.
2. The apparatus according to claim 1,
Three-phase four-wire type distribution box connected to each zone;
A first meter connected to the distribution box in a single phase to measure an incoming power of the household;
A second meter for measuring surplus power of the generation;
An inverter connected to a rear end of the second meter to convert the charge power of the energy storage device into commercial power; And
And an energy storage device installed between the inverter and the power distribution box.
3. The apparatus of claim 2, wherein the first and second meters
And a transmission / reception module for performing a communication function.
2. The transformer according to claim 1,
A main transformer for converting high-voltage power supplied from the power company into low-voltage commercial power and supplying the converted power;
A rectifier for converting AC power into DC power and supplying the AC power between the main transformer and the distributed power source;
A common winding provided between the main transformer and the rectifier and shared by the high voltage side and the low voltage side; And
A main transformer, and a main transformer. The main transformer is connected to the power control server through a communication terminal,
Wherein the intelligent energy storage system comprises:
delete 2. The apparatus of claim 1, wherein the power control server
Wherein the report generating module transmits the report generated by the report generating module to the user terminal and transmits an alarm message for the emergency state to the user terminal in an emergency.

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