KR20130117566A - Residential system and method for smart power control - Google Patents

Residential system and method for smart power control Download PDF

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KR20130117566A
KR20130117566A KR1020120040513A KR20120040513A KR20130117566A KR 20130117566 A KR20130117566 A KR 20130117566A KR 1020120040513 A KR1020120040513 A KR 1020120040513A KR 20120040513 A KR20120040513 A KR 20120040513A KR 20130117566 A KR20130117566 A KR 20130117566A
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power
home
central
intelligent
electronic device
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KR1020120040513A
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Korean (ko)
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이민구
박용국
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전자부품연구원
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Publication of KR20130117566A publication Critical patent/KR20130117566A/en

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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/66—Regulating electric power
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/08—Payment architectures
    • G06Q20/14—Payment architectures specially adapted for billing systems
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q30/00—Commerce
    • G06Q30/06—Buying, selling or leasing transactions
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
    • G06Q50/06—Energy or water supply

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Abstract

PURPOSE: An intelligent power control system for a house and a method thereof are provided to monitor and control a generated power amount and a power consumption amount through an integrated type smart power system (SPS), thereby reducing costs for implementing the intelligent power control system. CONSTITUTION: A power generator generates electricity using alternative energy. An energy storage stores the electricity. A power managing unit (200) supplies the electricity to an electric device. The power managing unit sells remaining electricity to a power institution. The power managing unit includes a Prosuming (providing and consuming) engine (210) which purchases central electricity of the power institution and supplies the central electricity to the electric device. A power switch (220) performs switching by control of the Prosuming engine. [Reference numerals] (210) Prosuming engine; (220) Power switch; (230) Electricity transferring unit; (240) Inverter; (250) Display unit; (260) Control interface; (AA) Electricity agency; (BB) Delectical device in your home; (CC) Enegry storage; (DD) Electricity generater

Description

Residential Intelligent Power Control System and Method {Residential System and Method for Smart Power Control}

The present invention relates to a power control system, and more particularly, to an intelligent power control system and method for homes that can support intelligent home power consumption in consideration of power consumption of home electronic devices.

In recent years, the government has been trying to reduce dependence on depleted energy such as coal and oil and reduce carbon emissions by expanding the supply of houses using renewable energy as an energy source.

Specifically, the government has been promoting the "Solar Photovoltaic No. 100,000 Project" since 2004, which allows each household to produce its own energy sources through photovoltaic power generation. The Manho Supply Project has been in progress since 2009.

By the way, the solar power-linked green home business to date is mostly for grid-connected photovoltaic systems that can receive or transmit power without storing the power generated. Therefore, as a countermeasure against the increase in power demand in the future smart grid infrastructure, distributed energy resources are used at peak power times and charged during low power consumption periods based on the differential dynamic pricing. There is a drawback in that it cannot flexibly cope with demand response type power management that can sell power back to the grid.

Moreover, the conventional stand-alone photovoltaic power generation is advantageous to supply power to areas where grid power is difficult to supply, such as island areas and mountain walls, but it does not communicate with the outside or measure the power consumption, so the demand response type of the smart grid will be developed in the future. It is difficult to cope with power management.

The present invention has been made in the technical background as described above, in consideration of at least one of the power consumption of the electronic equipment in the home, the power bill of the power agency and the occupants of the occupant, to selectively use the power of the home's own production power and the power authority It is an object of the present invention to provide an intelligent home power control system and method.

Home intelligent power control system according to an aspect of the present invention, a power generator for generating its own power using alternative energy; An energy store that stores the power itself; And when the total power consumption of all the electronic devices installed in the home is less than the production amount of the own power, supply the own power to the electronics, and sell the remaining power not supplied to the electronics among the own powers to the electric power institution. If the total power consumption is more than the amount of production of its own power, characterized in that it comprises a power manager including a prosuming (Prosuming) engine to purchase the central power of the electric power supply to the electronic device.

An intelligent power control method for a house by a power manager including a prosuming engine according to another aspect of the present invention includes the steps of: verifying a production amount of generated self power using alternative energy; Checking the total power consumption of the own power by all the electronic devices installed in the home; If the total power consumption is less than the output of the own power, supplying the own power to the electronics, and selling the remaining power not supplied to the electronics of the own powers to a power agency; And if the total power consumption is equal to or greater than the production amount of the own power, purchasing the central power of the electric power engine and supplying the central power to the electronic device.

According to the present invention, the disadvantages of the conventional stand-alone (no grid connection, no power meter, no rechargeable battery) photovoltaic system and grid-connected (no grid connection, no power meter, no rechargeable battery) In addition, the company can provide an integrated Smart Power System (SPS) that includes an inverter, a power meter, and a home panel for energy monitoring and control.

Moreover, the present invention can monitor and control power generation and consumption in one place through the integrated SPS, reducing the complexity of hardware and installation, and lowering the implementation cost.

In addition, the present invention can improve the economics of the residents in the house through the power commerce to sell the energy produced / stored in real time according to the situation, to the demand response power management system of the future smart grid Can cope efficiently

In addition, the present invention is equipped with a prosuming (consuming) engine in the SPS to monitor the energy consumption / control situation for each home appliance information, battery storage capacity for charging, dynamic pricing of the smart grid, or occupants Intelligent energy trading can be controlled by considering whether or not.

In addition, the present invention enables the traditional energy consumption subjects to act as subjects of energy prosumer (prosumer = provider + consumer) in the next generation intelligent network to improve energy efficiency and economic efficiency.

In addition, the present invention can be more efficient because it can be re-added to the energy saving control by the home intelligent energy control technology to monitor and intelligently control the energy consumption by home appliances and information devices in the home, the additional energy saved by the technology.

1 is a block diagram showing an intelligent home power control system according to an embodiment of the present invention.
FIG. 2 is a diagram illustrating in detail the power manager of FIG. 1; FIG.
3 is a flowchart illustrating a method for intelligent power control for a house according to an embodiment of the present invention.
4 is a flowchart illustrating a method for intelligent power control for a home according to another embodiment of the present invention.

Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. As used herein, the terms " comprises, " and / or "comprising" refer to the presence or absence of one or more other components, steps, operations, and / Or additions.

Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. 1 is a block diagram showing an intelligent home power control system according to an embodiment of the present invention, Figure 2 is a block diagram showing in detail the power manager of FIG.

As shown in FIG. 1, a residential intelligent power control system 10 according to an embodiment of the present invention includes a power generator 100, a power manager 200, and an energy store 300.

The power generator 100 generates its own power by using alternative energy such as solar light and wind power. At this time, the self power may be DC (Digital Current) or AC (Analog Current). Hereinafter, the case of DC will be described as an example.

For example, the power generator 100 may be a solar panel module (PV panel) that generates DC by accumulating sunlight.

The energy store 300 stores the DC generated by the power generator 100 and may be a large capacity rechargeable battery.

The power manager 200 supplies DC power generated by the power generator 100 or central power (hereinafter, referred to as AC) supplied by an electric power institution to the in-house electronic device. In this case, the power manager 200 may be a smart power system (SPS), and the power institution may be a company that supplies power to each home, such as KEPCO.

The power manager 200 includes an inverter 240, a power switch 220, a display unit 250, a proming engine 210, a power transmitter 230, and a control interface 260 as shown in FIG. 2.

The inverter 240 converts the DC generated by the power generator 100 into AC used by a general electronic device. If the price is not a problem, the inverter 240 may be a high efficiency inverter.

In this case, the inverter 240 receives a DC produced by the energy storage 300 or the power generator 100, converts it into AC, and supplies the converted power to the power switch 220.

The power switch 220 switches under the control of the proming engine 210, and supplies AC purchased from a power agency to an in-house electronic device, or supplies AC from an in-house produced inverter 240 to an in-house electronic device and a power institution. Provide multiple paths to feed. In this case, the AC of the electric power institution may be settled in real time and may be settled in units of a predetermined period.

The proming engine 210 checks the individual power consumption of each electronic device, the total power consumption of all the electronic devices in the house, the production of DC or AC, the remaining amount of DC in the energy storage 300, the AC charge of the power organization, and the like. Optionally, display is performed through the display unit 250.

At this time, the prosuming engine 210 may check the individual power consumption of each electronic device in the premises on a predetermined time basis, and determine the total power consumption of all the electronic devices in the house by combining the individual power consumptions.

At this time, the proming engine 210 may check the DC generated by the power generator 100 on a predetermined time basis to confirm the DC or AC production amount.

At this time, the proming engine 210 may check the DC size of the energy store 300 on a predetermined time basis to check the remaining amount of DC in the energy store 300.

In this case, the proming engine 210 may check the price of the central power by checking the price signal from the power agency when the power agency applies the variable plan.

If the total power consumption is less than the production of its own DC or its own AC converted from DC, the proming engine 210 converts the DC into AC and supplies it to the home electronics, which is not used among the own ACs, and supplies the remaining AC to the power institution. It sells and transmits to the power authority through the power transmission unit 230.

If the total power consumption is more than the output of DC or AC, the proming engine 210 purchases and supplies AC to the home electronics.

The proming engine 210 converts the DC produced by the home appliance to AC and supplies it to the electronic device when the AC charge of the power institution is higher than the predetermined rate, and sells AC that is not supplied to the electronic device among the AC produced to the power agency. And transmits to the power authority through the power transmitter 230.

The proming engine 210 purchases the central power and supplies it to the electronic device when the AC charge of the electric power institution is less than the predetermined fee.

Here, the predetermined fee may be a criterion for determining that it is advantageous to purchase AC of a power institution without producing DC, such as a production cost of DC.

The display unit 250 displays at least one of the individual power consumption, the total power consumption, the DC or AC production, the remaining amount of DC in the energy storage 300, and the AC charge of the electric power institution.

The control interface 260 provides a user interface for power management, and the user uses the control interface 260 to control the power of the AC power, the AC power, or the AC production in preparation for AC consumption. An outing mode set at the time of going out, a reservation mode for setting execution of a predetermined function at a preset time or condition, and the like can be set.

For example, the proming engine 210 switches the home electronics to the low power mode when the outing mode is set, thereby reducing the total energy consumption used by the home electronics, thereby selling more home-grown AC to the power agency. can do.

On the other hand, the proming engine 210 may monitor or control the use state of the electronic equipment in the home to increase the efficiency of its own power / central power transaction.

Hereinafter, referring to FIG. 2, a flow of AC produced by a DC / AC produced by the power manager 200 and a power organization will be described.

As shown in FIG. 2, when the proming engine 210 decides to supply home-made DC to an in-house electronic device, the DC produced by the power generator 100 is stored in the energy storage 300 and then the inverter 240. Or is supplied directly from the power generator 100 to the inverter 240, and is converted to AC by the inverter 240. Then, the AC is supplied to the home electronics via the power switch 220, and the AC supplied to the home electronics and the remaining AC is sold to the power engine by the prosuming engine 210, and then the power is transmitted through the power transmission unit 230. Delivered to the organ.

On the other hand, when the prosuming engine 210 decides to supply AC of an electric power institution to an in-home electronic device, the AC purchased from the electric power institution by the proming engine 210 passes through a power switch 220 from the electric power institution to the home electronic device. Is supplied.

Hereinafter, an intelligent home power control method according to an embodiment of the present invention will be described with reference to FIG. 3. 3 is a flowchart illustrating a method for intelligent power control for a house according to an embodiment of the present invention. 3 illustrates a process of purchasing or selling power in consideration of consumption amount compared to production of own power.

Referring to FIG. 3, the power manager 200 checks an output amount of its own power generated by using alternative energy (S310). At this time, when the self power is DC, the power manager 200 may check the amount of self power converted from DC to AC.

The power manager 200 checks the total power consumption of its own power by all the electronic devices installed at home (S320). At this time, the power manager 200 may check the power consumption of the individual electronic devices in the home, add up all, and check the total power consumption of all the electronic devices in the home.

The power manager 200 checks whether the total power consumption is less than the production of its own power (S330).

If the total power consumption is less than the output of its own power, the power manager 200 supplies its own power to the electronics, and sells the remaining power not used among its own power to the power institution (S340). At this time, if the remaining power is sold to the power authority, the power manager 200 supplies the remaining power to the power authority.

If the total power consumption is more than the amount of power produced, the power manager 200 purchases the central power of the electric power and supplies it to the electronic device (S350).

Hereinafter, an intelligent home power control method according to another embodiment of the present invention will be described with reference to FIG. 4. 4 is a flowchart illustrating a method for intelligent power control for a house according to another embodiment of the present invention. 4 is a diagram illustrating a process of purchasing or selling electric power in consideration of an electric charge when the electric power institution uses a variable fee.

Referring to FIG. 4, the power manager 200 checks the charge of the central power from the charge signal from the power authority (S410).

The power manager 200 checks whether the fee of the central power is greater than or equal to the predetermined fee (S420). Here, the predetermined fee may be a cost required for the production of its own power, or a cost required for converting it to produce and use its own power.

The power manager 200 converts its own power in the energy storage 300 into AC according to the type of the electronic device or converts the power level into the electronic device according to the type of the electronic device when the fee of the central power is equal to or greater than the predetermined fee (S430). In this case, when the electronic device is capable of using its own power, the power manager 200 may supply its own power as it is.

The power manager 200 supplies the remaining power to the electronic device and sells the remaining power to the electric power institution, and transmits the electric power to the electric power institution (S440).

If the fee of the central power is less than the predetermined fee, the power manager 200 purchases the central power and supplies it to the electronic device (S450). In this case, the power manager 200 may produce its own power and store it in the energy storage 300 in case the rate of the central power increases.

On the other hand, the power manager 200 may drive the electronic device in a low power mode when going out of the house occupants, increase the remaining power not supplied to the electronic device to sell to the power organization.

As described above, the present invention provides a photovoltaic system of a conventional stand-alone (no grid connection, no power meter, no rechargeable battery) and a grid-connected (no grid connection, no power meter, no rechargeable battery) solar power system. Complementing the shortcomings can provide an integrated Smart Power System (SPS) that includes an inverter, a power meter and a home panel for energy monitoring and control.

Moreover, the present invention can monitor and control power generation and consumption in one place through the integrated SPS, reducing the complexity of hardware and installation, and lowering the implementation cost.

In addition, the present invention can improve the economics of the residents in the house through the power commerce that sells the energy produced / stored in real time according to the situation, can effectively cope with the demand response of the future smart grid have.

In addition, the present invention is equipped with a prosuming (consuming) engine in the SPS intelligent monitoring considering the energy consumption / control situation for each home appliance information, battery storage capacity for rechargeable and dynamic pricing of the smart grid, etc. You can control energy trading.

In addition, the present invention enables the traditional energy consumption subjects to act as subjects of energy prosumer (prosumer = provider + consumer) in the next generation intelligent network to improve energy efficiency and economic efficiency.

In addition, the present invention can be more efficient because it can be re-added to the energy saving control by the home intelligent energy control technology to monitor and intelligently control the energy consumption by home appliances and information devices in the home, the additional energy saved by the technology.

While the present invention has been described in detail with reference to the accompanying drawings, it is to be understood that the invention is not limited to the above-described embodiments. Those skilled in the art will appreciate that various modifications, Of course, this is possible. Accordingly, the scope of protection of the present invention should not be limited to the above-described embodiments, but should be determined by the description of the following claims.

Claims (8)

A power generator that generates its own power using alternative energy;
An energy store that stores the power itself; And
If the total power consumption of all the electronic devices installed in the home is less than the production amount of the own power, the self power is supplied to the electronic device, and the remaining power is not supplied to the electronic device, and the remaining power is sold to the electric power institution. A power manager including a prosuming engine that purchases the central power of the electric power institution and supplies the electronic power to the electronic device when the total power consumption is equal to or greater than the amount of power generated by the electric power.
Residential intelligent power control system comprising a. The method of claim 1, wherein the proming engine, when the power engine applies a variable rate,
If the rate of the central power is more than a predetermined rate, the self power is supplied to the electronic device and the remaining power is sold to the electric power institution,
Intelligent power control system for homes to purchase the central power and to supply to the electronics, if the fee of the central power is less than the predetermined fee. The method of claim 1, wherein the power manager,
When the self power is DC, the inverter converts to AC and supplies to the electronics
Intelligent power control system for a home that includes. The method of claim 1, wherein the power manager,
A display unit for displaying at least one of the total power consumption, the amount of production of its own power, the remaining amount of its own power in the energy storage, the charge of the central power
Intelligent power control system for a home that includes. The method of claim 1, wherein the power manager,
A power switch for selectively transferring the central power and the own power to the electronic device, and transferring the remaining power sold to the electric power institution
Intelligent power control system for a home that includes. An intelligent power control method for a home by a power manager including a proming engine,
Identifying the yield of self generated power using alternative energy;
Checking the total power consumption of the own power by all the electronic devices installed in the home;
If the total power consumption is less than the output of the own power, supplying the own power to the electronics, and selling the remaining power not supplied to the electronics of the own powers to a power agency; And
If the total power consumption is equal to or greater than the amount of power produced by the electric power, purchasing central power of the electric power engine and supplying the electronic power to the electronic device
Intelligent power control method for home comprising a. 7. The method of claim 6, wherein when the power agency applies a variable plan,
Supplying the electric power to the electronic device and selling the remaining power to the electric power institution when the fee of the central power is equal to or more than a predetermined fee; And
Purchasing the central power and supplying the electronic power to the electronic device if the fee of the central power is less than the predetermined fee.
Intelligent power control method for home further comprising. The method according to claim 6,
Driving the electronic device in a low power mode when the home occupant is out, increasing the remaining power and selling the remaining power to the electric power institution;
Intelligent power control method for home further comprising.
KR1020120040513A 2012-04-18 2012-04-18 Residential system and method for smart power control KR20130117566A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015126000A1 (en) * 2014-02-19 2015-08-27 벽산파워 주식회사 Demand response service system of sewage and waste water treatment plant
KR101629847B1 (en) * 2015-05-26 2016-06-14 (주)제이와이이엔씨 Inverter monitoring system
WO2018012771A1 (en) * 2016-07-11 2018-01-18 정윤이 Smart grid business system using ess
KR20180105408A (en) * 2017-03-15 2018-09-28 엘에스산전 주식회사 Individual electricity energy management system
KR20180105407A (en) * 2017-03-15 2018-09-28 엘에스산전 주식회사 Integrated electricity energy management system
KR20200061008A (en) * 2018-11-23 2020-06-02 주식회사 야베스 Prosumer Energy trading Method Using Energy Storage System for home use
KR20210026446A (en) * 2019-08-30 2021-03-10 한국전력공사 Method for optimizinging power schedule

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015126000A1 (en) * 2014-02-19 2015-08-27 벽산파워 주식회사 Demand response service system of sewage and waste water treatment plant
KR101629847B1 (en) * 2015-05-26 2016-06-14 (주)제이와이이엔씨 Inverter monitoring system
WO2018012771A1 (en) * 2016-07-11 2018-01-18 정윤이 Smart grid business system using ess
KR20180105408A (en) * 2017-03-15 2018-09-28 엘에스산전 주식회사 Individual electricity energy management system
KR20180105407A (en) * 2017-03-15 2018-09-28 엘에스산전 주식회사 Integrated electricity energy management system
KR20200061008A (en) * 2018-11-23 2020-06-02 주식회사 야베스 Prosumer Energy trading Method Using Energy Storage System for home use
KR20210026446A (en) * 2019-08-30 2021-03-10 한국전력공사 Method for optimizinging power schedule

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