KR101080036B1 - Apparatus and method for smart power generation management upon power demand, and a system using the same - Google Patents

Abstract

PURPOSE: An apparatus and method for smart power generation management based on power demand and a system using the same are provided to accurately check power generation costs and an amount of power by managing a generation system through a web. CONSTITUTION: A charge information collecting unit(122) collects information about real-time electric charges. A comparator(124) calculates charge comparison result by comparing the real-time electric charges with preset critical electric charges. A determining unit(126) determines whether to sell electricity using renewable energy based on the charge comparison result. The renewable energy source is selected among sunlight, geotherm, bio gas, or slurry of a sewage disposal plant.

Description

Smart power management device, demand management method, and system using the same {APPARATUS AND METHOD FOR SMART POWER GENERATION MANAGEMENT UPON POWER DEMAND, AND A SYSTEM USING THE SAME}

The present invention relates to the field of renewable energy generation, in particular, the power generation interlocking smart power generation management device, management method, and system using the same to control the production, use and sale of renewable energy electricity in real time in connection with electricity rates It is about.

In recent years, various countries are developing and researching technologies aimed at zero-energy housing and zero-energy buildings for green growth. In Korea, the use of new and renewable energy is mandated by introducing a system that uses more than a certain portion of the total energy used in the new building for renewable energy.

In order to cope with such social and policy needs, more efficient and smooth use and management of renewable energy is required along with the development of renewable energy production facilities, and a system that integrates and manages renewable energy is essential. In addition, the electricity produced by using the renewable energy is mandatory purchase from the power company to generate power, and the transaction is made at a higher price than the power sold by the power company. In the future, the selling price of electricity generated from renewable energy is expected to increase.

Meanwhile, researches on smart grids (intelligent electric grids) are actively underway to improve energy efficiency. Smart grid refers to the next generation power system and its management system that are realized through the convergence and complex of modern power technology and information and communication technology.

The smart grid is sometimes called the "energy internet" because all electrical devices, power storage devices and distributed power supplies are networked to enable interaction between consumers and suppliers.

In order to implement a smart grid from the perspective of a power consumer such as a home or a building, there is a need for bidirectional communication with a power supply with respect to power information, instead of only receiving power unilaterally through a network to which a plurality of home appliances are connected. . Along with this, there is a need for new devices for this two-way communication.

In addition, in order to implement a smart grid from the perspective of a power consumer such as a home or a building, it is necessary to monitor the changing power rate in real time, recognize the peak time when the power rate is rising, and refrain from using electrical appliances during the peak time. It is necessary to make it possible. In addition, there is a need for a demand-powered interlocking power generation management apparatus and method that can sell electricity generated by renewable energy at the peak side of the electricity consumer to the power company upside down at the peak time of the electricity bill.

The present invention provides a demand-powered smart power generation management device, a management method, and a system using the same, which can control electricity production, use, and sale using renewable energy in real time in connection with electric power rates.

The demand-powered smart power generation management device of the present invention includes a price information collection unit for collecting information on the real-time power rate, and a comparison unit for comparing the information on the real-time power rate with a preset threshold rate to calculate a rate comparison result. And a determination unit which determines whether to sell the electricity produced at the power generation stage by using the result of the fee comparison.

According to an embodiment of the present invention, a power generation interlocking smart power generation system includes a renewable energy generation stage that generates electricity by using at least one renewable energy resource, a price information server providing real-time power rate information, and the real-time power rate information. It includes a power generation management server for determining whether to sell the electricity produced by the renewable energy generation stage.

In accordance with an embodiment of the present invention, there is provided a method of managing power generation smart generation using at least one renewable energy source, the method comprising: a) collecting information on a real-time power rate; Comparing the information with a predetermined threshold price to calculate a rate comparison result; and c) determining whether to sell the produced electricity by using the rate comparison result.

According to the present invention, it is possible not only to control the production of electricity using renewable energy in accordance with the power rate that changes according to the power demand, it is possible to generate revenue by selling the electricity produced through this. In addition, the above power generation system can be integrated and managed through an open and maximum compatible web-based system so that the amount of power produced and the cost of power generation can be accurately and quickly identified.

1 is a block diagram showing the configuration of a demand power interlock smart generation management system according to an embodiment of the present invention.
2 is a block diagram showing the configuration of a power generation management server according to an embodiment of the present invention.
3 to 5 are exemplary diagrams showing the configuration of a user interface of a user terminal according to an embodiment of the present invention.
6 is a flowchart illustrating a procedure of a demand power-linked smart power generation management method according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions will not be described in detail if they obscure the subject matter of the present invention.

1 is a block diagram showing the configuration of a demand power interlock smart generation management system according to an embodiment of the present invention. Referring to FIG. 1, the demand power interworking smart power generation management system 100 includes a renewable energy generation stage 110, a power generation management server 120, a gateway 130, a data server 140, and a price information server 150. , The user terminal 160 and the building energy management system 170.

Renewable energy generation unit 110 produces electricity by using the renewable energy resources of the pollution-free. In one embodiment, the renewable energy generation stage 110 is a photovoltaic power generation (S) for producing electricity using solar light, geothermal power generation (G) for producing electricity using geothermal heat, electricity using the wind Wind power generation (W) and the like. However, the renewable energy generation stage 110 is not limited thereto. For example, the renewable energy generation stage 110 is a food waste using power generation or sewage treatment plant that can generate electricity using biogas generated when fermentation after crushing food waste below a certain size to effectively microbial reaction. Sludge (dry) after drying the sludge may include sludge using power generation to generate electricity by using the heat generated by incineration.

On the other hand, each renewable energy generation stage 110 includes a variety of sensors to form the power generation information on power consumption, energy production, energy efficiency, carbon emissions, and the like. In one embodiment, the renewable energy generation stage 110 measures the power consumed for the production of electricity in each renewable energy generation stage 110 by using a wattmeter, the integration of each renewable energy generation stage 110. The amount of production energy and the amount of instantaneous production energy can be calculated. Accumulated production energy represents the amount of production energy accumulated cumulatively over a certain period of time, such as one year, one month, one day, in each renewable energy generation stage 110, the instantaneous production energy amount is each renewable energy generation stage The amount of production energy at the time of monitoring 110 is shown.

The generation management server 120 determines whether to sell the electricity produced by the renewable energy generation stage 110 according to the real-time power rate, and monitors, controls and manages the renewable energy generation stage 110. do.

2 is a block diagram showing the configuration of a power generation management server according to an embodiment of the present invention. Referring to FIG. 2, the power generation management server 120 includes a price information collecting unit 122, a comparing unit 124, a determining unit 126, and a switching unit 128.

The price information collection unit 122 collects information on power rates by using various paths. In one embodiment, the price information collector 122 may obtain the information on the real-time power bill from the price information server 150. In addition, the price information collector 122 may store the collected power fee information in a database (not shown).

The comparator 124 compares the information on the power rate collected by the price information collector 122 with a preset threshold rate to calculate a rate comparison result. For example, the threshold fee may be set to be 1.5 times the normal power fee. However, the threshold fee is not limited to this.

The determination unit 126 determines whether to sell the electricity produced in each renewable energy generation stage 110 by using the rate comparison result calculated in the comparison unit 124. As an example, when the real-time power rate provided by the price information server 150 is less than or equal to a predetermined threshold rate, the building energy management system 170 may be used for self-use of electricity produced by each renewable energy generation stage 110. If the real-time power rate is more than a predetermined threshold rate, the switching signal is formed to be supplied to the power supplier.

When the switching unit 128 forms a switching signal, the switching unit 128 switches the electricity supplied to the building energy management system 170 to the power supply company to sell the electricity to the power supply company. .

On the other hand, the generation management server 120 may include a control unit (not shown) for controlling the electricity production in the renewable energy generation stage 110. The control unit is used for the production of electricity using renewable energy when the power rate is higher than a predetermined amount (for example, peak time) based on the information on the power rate collected by the price information collecting unit 122. The device (eg heat pump in the case of geothermal power generation) can be deactivated. Thereafter, when the power rate is lower than a predetermined amount, the controller may resume electricity production using renewable energy.

The gateway 130 forms the first power generation monitoring data by using power generation information formed at each renewable energy generation stage 110, that is, information on power consumption, amount of production energy, energy efficiency, and carbon emission. In addition, the gateway 130 may be compared to the case of generating electricity using fossil fuel, and the cost of saving electricity when generating electricity from renewable energy, and using electricity generated from fossil fuel and electricity generated from renewable energy. To calculate the comparison fee and the like to form the second power generation monitoring data.

Meanwhile, the gateway 130 is compatible with at least one standard protocol based on XML, and is compatible with a product of a solution provider (3rd party), and supports Modbus, BACnet, Lonworks, DNP3, DLMS, ANSI C12.22, and IEC61850. It is possible. In addition, it performs wired / wireless communication RS485, Zigbee, PLC, Wifi, and LAN functions, and can be expanded in the form of Plug & Play.

In addition, the gateway 130 is connected to a server through a wired or wireless Internet, or the gateway 130 itself functions as a server so that users access the user terminal 160 using the user terminal 160 to access a laptop computer or a laptop at a remote location. The user terminal 160 such as a mobile phone can grasp and control power generation monitoring information of the renewable energy generation stage 110, and other various settings or programs can be performed.

The data server 140 stores the first and second power generation monitoring data formed at the gateway 130. As an example, the data server 140 may store the first and second generation monitoring data in a standard XML form of Obix based on an open platform.

The price information server 150 provides in real time the information on the power bill of the power supplier. In one embodiment, the information on the real-time power bill of the price information server 150 may be transmitted to the power generation management server 120 through the Internet and the gateway 130.

The user terminal 160 provides power generation monitoring information for each renewable energy to the user by using the first and second power generation monitoring data stored in the data server 140. The user terminal 160 may provide generation monitoring information to the user by using various user interfaces. Various user interfaces will be described later with reference to FIGS. 3 to 5. In addition, the user terminal 160 displays information on the real-time power rate of the price information server 150, and according to the threshold rate, the electricity generation management server 120 switches the electricity produced by the renewable energy generation stage 110 If you do, you can display it to let the user know about it.

The user terminal 160 may include all terminals capable of a wired / wireless network having a display. In FIG. 1, the user terminal 160 is connected to the gateway 130 using the Internet, but the configuration is not limited thereto. The gateway 130 may be configured using various wired or wireless communication such as RS485, Zigbee, PLC, Wifi, and LAN. It can be connected with.

On the other hand, for the security of the power generation management system, when the user accesses the gateway 130 by using the user terminal 160 for the first time, the user must pass the user authentication to monitor, control, and manage the renewable energy generation stage 110. In one embodiment, user authentication using the user terminal 160 may be performed by inputting a building name, an address, an equilibrium (area) information, and the like of a user, and inputting a user ID and a password. However, the user authentication method is not limited thereto.

3 to 5 are exemplary views showing a user interface of the user terminal 160 according to an embodiment of the present invention.

3 illustrates a user interface for monitoring renewable energy generation, and an information input button IB is located at the top of the screen. When the user presses the information input button IB, a window for inputting user information is displayed, and user authentication is started. The user information may include a building name, address, balance (area) information, and the like. At the top of the interface, buttons SB for selecting a renewable energy generation stage 110 such as solar, geothermal and wind power are located. Renewable energy selection buttons (SB) are located at the bottom of power consumption, carbon emissions, production energy, energy efficiency, and savings and costs when generating electricity from renewable energy compared to when electricity is generated from fossil fuels. There is a data selection button DB for selecting power generation monitoring data such as a comparison fee in the case of using electricity generated by electricity and electricity generated by renewable energy. If you click the arrow of the data selection button (DB), a new window will appear below and you can select the generation monitoring information you want to monitor. To the right of the data selection button DB, a date selection button MB1 and a detailed date selection button MB2 are located. The date selection button MB1 may select a period of one day or one month, and the detailed date selection button MB2 may select a period for monitoring. After completing data selection and date selection, press inquiry button (CB) and the selected monitoring data and monitoring information corresponding to the selected date are provided in the form of monitoring graph (IG) at the top and monitoring information at the bottom of the monitoring graph (IG). It may be provided in the form of a daily monitoring table (CH). In the user interface of the present invention, a monitoring graph IG is provided so that the user can intuitively monitor the renewable energy generation stage, and a monitoring table CH is provided so that the user can statistically use the monitoring information.

4 shows data comparing the case of fossil fuel with the second power generation monitoring information formed in the case of geothermal power (G) in the gateway 130 of the demand-driven smart power generation management system 100 of the present invention. As fossil fuels, liquefied natural gas (LNG) city, liquefied petroleum gas (LPG) city gas, and kerosene can be represented graphically and numerically in comparison with geothermal power generation, one of the renewable energy resources. have.

Figure 5 shows the amount of production energy of the selected date and the cumulative production energy of the selected month, the power consumption of the selected date and the cumulative power consumption of the selected month in power generation using a specific renewable energy. In addition, when using the renewable energy, savings can be provided to the user in comparison with the case of power generation using fossil fuels in terms of charge, carbon emission, and electricity consumption.

6 is a flowchart illustrating a procedure of a demand power-linked smart power generation management method according to an embodiment of the present invention.

Referring to FIG. 6, first, the renewable energy generation stage 110 generates electricity by using each energy source (S110). In addition, the renewable energy generation stage 110 forms a generation information for monitoring the power generation stage, including various measuring instruments (S120).

The generation management server 120 compares the information on the real-time power rate provided by the price information server 150 with a predetermined threshold rate in the system (S130), and when the real-time power rate is greater than the threshold rate, renewable energy generation Selling the electricity produced in step 110 to the power supplier (S140), when the real-time power rate is less than the threshold rate, the user directly uses the electricity produced (S150).

The demand power interlocked smart power generation system of the present invention can measure the power amount of the renewable energy generation stage 110 side in real time using a real-time power measurement technology using a remote metering smart meter.

As described above, the demand-driven smart power generation management system of the present invention can be integrated management on the web-based, open structure and maximum compatibility is provided, and further, it is possible to sell electricity produced at a reasonable price.

While the above methods have been described through specific embodiments, the methods may also be implemented as computer readable code on a computer readable recording medium. Computer-readable recording media include all kinds of recording devices that store data that can be read by a computer system. Examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, floppy disks, optical data storage devices, and the like, which are also implemented in the form of carrier waves (for example, transmission over the Internet). Include. The computer readable recording medium can also be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion. In addition, functional programs, codes, and code segments for implementing the above embodiments can be easily deduced by programmers of the present invention.

While the invention has been described in connection with some embodiments, it should be understood that various modifications and changes can be made without departing from the spirit and scope of the invention as would be understood by those skilled in the art. will be. It is also contemplated that such variations and modifications are within the scope of the claims appended hereto. For example, the system according to the invention further comprises a storage battery, it is also possible to store the electricity produced using renewable energy, and then sell it later.

110: renewable energy development group 120: power management server
130: gateway 140: data server
150: price information server 160: user terminal
170: building energy management system 122: price information collector
124: comparison unit 126: determination unit
128: switching unit

Claims (22)

It is a demand-driven smart power generation management device,
A price information collection unit for collecting information on a real-time power rate;
A comparison unit comparing the information on the real-time power rate with a preset threshold rate and calculating a rate comparison result;
It includes a determination unit for determining whether to sell the electricity produced by using one or more renewable energy resources in the renewable energy generation stage using the rate comparison result,
Forming power generation information of the renewable energy generation stage including one or more measuring instruments for each renewable energy resource;
Reduction costs and electricity produced from fossil fuels when power generation is generated using the renewable energy resources as compared with the case where the first power generation monitoring data is formed using the power generation information and electricity is generated using fossil fuels. And generate second generation monitoring data by calculating a comparison fee between using electricity generated as the renewable energy source and second generation monitoring data, and using the first and second generation monitoring data, generation monitoring information for each renewable energy. Providing, power generation management device. The method of claim 1,
The determination unit,
When the power rate is less than or equal to the predetermined threshold rate, the produced electricity is used by itself, and when the power rate is greater than or equal to the preset threshold rate, a switching signal is formed to be supplied to a power supply company.
When the switching signal is formed, the power generation management device further comprises a switching unit for switching to the power grid of the power supply company side to sell the electricity used by the power supply company side. The method of claim 1,
The renewable energy resource,
A power generation management device selected from the group including sludge from solar, geothermal, wind, biogas or sewage treatment plants. The method of claim 1,
When the real-time power rate is higher than the predetermined amount, the electricity production at the renewable energy generation stage is stopped, and when the real-time power rate is lower than the preset amount, the electricity production at the renewable energy generation stage The power generation management device further comprising a control unit capable of resuming. Demand power interlocking smart power generation system,
A renewable energy power generation unit that generates electricity using one or more renewable energy resources,
A price information server that provides real-time power billing information;
It includes a power generation management server for determining whether to sell the electricity produced by the renewable energy generation stage according to the real-time power rate information,
The renewable energy generation stage, including the at least one measuring unit for each renewable energy resources to form the power generation information of the renewable energy generation stage,
Reduction costs and electricity produced from fossil fuels when power generation is generated using the renewable energy resources as compared with the case where the first power generation monitoring data is formed using the power generation information and electricity is generated using fossil fuels. A gateway that calculates a comparison fee between the case of using the power source and the case of using the electricity produced as the renewable energy source, and forms second generation monitoring data;
A data server storing the first and second power generation monitoring data;
And a user terminal connected to the gateway through wired / wireless communication and providing power generation monitoring information for each renewable energy by using the first and second power generation monitoring data. delete The method of claim 5,
The development information,
Power generation interlocking smart power generation system, including power consumption, amount of energy produced, energy efficiency and carbon emissions. delete The method of claim 5,
The gateway is,
Power generation interlocking smart power generation system that is compatible with at least one standard protocol based on XML and compatible with the solution company's product (3rd party). The method of claim 5,
The wired and wireless communication,
Power generation interlocking smart power generation system, including one or more of RS485, Zigbee, PLC, Wifi, LAN. The method of claim 5,
The gateway is,
When the user accesses the gateway for the first time by using the user terminal, the power generation interlocking smart power generation system. The method of claim 5,
The power generation management server,
When the real-time power rate is less than or equal to a predetermined threshold rate, the electricity generated by the renewable energy generation stage is supplied to the power required by the user's building, and when the real-time power rate is greater than or equal to the threshold rate, it is sold to the power supply company. Demand power interworking smart power generation system that supplies electricity by switching the electricity produced by the renewable energy generation stage. The method of claim 5,
The renewable energy resource,
Power generation interlocking smart power generation system selected from the group including sludge from solar, geothermal, wind, biogas or sewage treatment plants. The method of claim 5,
When the real-time power rate is higher than the predetermined amount, the electricity production at the renewable energy generation stage is stopped, and when the real-time power rate is lower than the preset amount, the electricity production at the renewable energy generation stage Further comprising a control unit for resuming, demand power interlock smart generation system. It is a demand power linkage smart generation management method comprising the step of producing electricity using one or more renewable energy resources,
a) collecting information about the real-time power bill;
b) calculating a rate comparison result by comparing the information on the real-time power rate with a preset threshold rate;
c) determining whether to sell the produced electricity by using the result of the fee comparison;
d) generating power generation information using one or more instruments for each renewable energy source;
e) forming first power generation monitoring data using the power generation information;
f) the cost savings of generating electricity using the renewable energy resources compared to the case of generating electricity using fossil fuels, the use of electricity produced from fossil fuels, and the electricity produced from the renewable energy resources. Calculating second generation charges to form second generation monitoring data;
g) storing the first and second power generation monitoring data;
and h) providing power generation monitoring information for each renewable energy by using the first and second power generation monitoring data. 16. The method of claim 15,
Step c) is
c-1) forming a switching signal to use the produced electricity when the power rate is less than or equal to the preset threshold rate, and to supply the power supplier to the power supply company when the power rate is greater than or equal to the preset threshold rate;
c-2) when the switching signal is formed, further comprising the step of switching to the power grid of the power supplier side to sell the electricity used by the power supplier side, the demand power linked smart generation management method. delete 16. The method of claim 15,
The development information,
A method for managing power generation linked to demand power, including power consumption, amount of energy produced, energy efficiency and carbon emissions. delete 16. The method of claim 15,
The renewable energy resource,
Power generation interlocking smart generation management method selected from the group, including solar, geothermal, wind, biogas or sewage treatment plant sludge. 16. The method of claim 15,
When the real-time power rate is higher than the predetermined rate, further comprising the step of stopping the electricity production using the renewable energy resources, the demand power interlock smart generation management method. The method of claim 15, further comprising the step of requesting user authentication when viewing the power generation monitoring information.

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