KR102438439B1 - Server, Communicating Device and System Having a Function of Managing Power Demand and Method of Managing Power Usage Thereof - Google Patents

Abstract

The present invention relates to a server, a communication device and a server having a power demand management function capable of requesting a subscriber to reduce power usage and rewarding the power usage reduction accordingly, and a method for managing power usage using the same.
The power use management system according to the present invention selects a subscriber who wants to request power use reduction by using subscriber information as a request signal for power use reduction is received, and uses the subscriber's communication device to control the power use reduction. and a server that transmits guide information, and a communication device that executes a power-related application when receiving the guide information from the server and outputs the guide information as a result of the execution. Furthermore, the server may grant a predetermined compensation to the subscriber when the power usage by the load device of the subscriber decreases according to the guide information.

Description

A server having a power demand management function, a communication device and a server, and a method for managing power usage thereof {Server, Communicating Device and System Having a Function of Managing Power Demand and Method of Managing Power Usage Thereof}

The present invention relates to a power demand management method, and more particularly, a server and a communication device having a power demand management function capable of requesting a subscriber or individual device of the subscriber to reduce power use and rewarding the corresponding reduction in use. and a server, and a method for managing power usage thereof.

As the power business is a national key business, production and consumption occur at the same time, so power suppliers must have sufficient power supply capacity so that there is no disruption in power supply at all times even at peak power demand. To this end, power suppliers have continued to expand power plants at a huge investment every year.

However, if you look at the recent increase in power demand, the rate of increase of the maximum power is higher than that of the average power. Operational efficiency and investment efficiency are greatly reduced. Accordingly, attempts to manage power demand as well as power supply are actively being made in order to balance power supply and demand.

For example, according to the prior art (Public Patent Publication No. 10-2014-0042852), when a power supplier requests a reduction in power use, an automated demand response (ADR) client controls the BAS according to a schedule entered in advance by the building manager. Disclosed is to control power consuming devices through

However, in the case of the prior art, there is a disadvantage in that it is necessary to estimate the amount of electricity demand through a separate program or algorithm when creating the schedule because the building manager is required to input the schedule in a batch. In addition, the accuracy of the forecast is very low because the electricity demand forecast based on the total usage of the building is used without information about the individual electronic devices of the occupants in the building.

In addition, the characteristics of power use of individual building occupants installed in the building may not be reflected, which may cause great inconvenience to individual occupants' power usage. In addition, depending on the power usage habits of individual building occupants, additional savings may not be reflected. In addition, there is a disadvantage that it is difficult to use it in private households or homes without a professional building manager.

Accordingly, there is an urgent need for a power demand management system that is more usable, efficient, and based on accurate demand forecasting.

In order to solve the above problems, the present invention provides a server, a communication device and a system having a power demand management function capable of reducing power usage to correspond to a time period and amount of power required to reduce power usage, and a method for managing power demand thereof would like to provide

In addition, in order to solve the above problems, the present invention provides a server having a power demand management function capable of inducing active participation of the subscriber in the power use reduction by providing guide information and compensation information for the power use reduction to the subscriber; An object of the present invention is to provide a communication device and system, and a method for managing power usage thereof.

In order to solve the above technical problem, a server having a power demand management function according to the present invention includes a storage unit for storing subscriber information, a receiving unit for receiving a request signal for power consumption reduction, and as receiving the request signal, the A selection unit that selects a subscriber who wants to request power consumption reduction using subscriber information, a transmission unit that transmits information about the power consumption reduction to a communication device of the selected subscriber, and power by the load device of the selected subscriber It may include a monitoring unit for monitoring the usage and a compensation management unit for granting a predetermined compensation to the corresponding subscriber when the power usage by the load device is reduced according to the guide information.

Here, the subscriber information includes the total power usage of the subscriber, power usage for each load device, predicted usage information, a history of power consumption reduction for the entire load device or for each load device according to guide information, and all or each of the load devices of the subscriber. It may include at least one of the probability distribution function of the reduction for .

Therefore, the selection unit, at least one of the power usage, the predicted usage, the reduction history for each subscriber or load device according to the guide information, and a probability distribution function of the reduction in power use for the entire load device or for each load device according to the compensation for each subscriber Taking this into account, it is possible to select a subscriber who can fulfill a given reduction request usage with minimal cost.

In addition, the request signal may include information on at least one of an amount of power required for power consumption, request information for on, off, and operation mode for each load device, a time period for saving demand, and a region for requesting power saving.

In addition, the guide information may include information on at least one of an amount of power saving required for the selected subscriber, a current status of power use of the selected subscriber, a time required for saving, and compensation according to the reduction.

In addition, the transmitter may transmit the information on the granted compensation to the communication device of the corresponding subscriber, and transmit information on the total load of the subscriber or the amount of power saved for each load device according to the guide information to the power supply related server can do.

In order to solve the above technical problem, a communication device having a power demand management function according to the present invention includes a communication unit that receives guide information on power use reduction from a power use management server, and a power-related application as the guide information is received. It may include a control unit that executes and an output unit that outputs the guide information by executing the power-related application.

Furthermore, the communication unit may receive information about a compensation given in response to power consumption reduction according to the guide information, and the output unit may output information about the compensation by executing the power-related application. have.

In addition, the communication device may further include an input unit for receiving a power saving command for at least one load device by executing the power-related application. In this case, the communication unit may transmit a power saving command signal to a load device corresponding to the power saving command.

In order to solve the above technical problem, a system having a power demand management function according to the present invention selects a subscriber who wants to request power use reduction using subscriber information as a request signal for power use reduction is received, and the A server that transmits the guide information on power consumption reduction to the selected subscriber's communication device, and a communication device that executes a power-related application when receiving the guide information from the server and outputs the guide information as a result of the execution include

Furthermore, the server may grant a predetermined compensation to the selected subscriber when the power usage by the load device of the selected subscriber decreases according to the guide information.

In order to solve the above technical problem, the power usage management method according to the present invention includes the steps of storing subscriber information, receiving a request signal for power consumption reduction, and using the subscriber information upon receiving the request signal. Selecting a subscriber who wants to request power consumption reduction, transmitting guide information on power use reduction to the selected subscriber's communication device, monitoring the total load of the subscriber or power usage by individual load devices and providing a predetermined compensation to the subscriber when the total load of the subscriber or the power usage of individual load devices is reduced according to the guide information.

According to the present invention, it is possible to implement a power use reduction scheme based on a non-intrusive load monitoring scheme for subscriber power usage without constructing an expensive system for reducing power use.

In addition, according to the present invention, it is possible to efficiently manage power use by reducing power use in consideration of a time period and amount of power required to reduce power use.

In addition, according to the present invention, power saving efficiency can be increased by inducing power consumption reduction for subscribers who can achieve a given power usage reduction at a minimum cost.

In addition, according to the present invention, by providing a reward for power use reduction, it is possible to induce the subscriber to actively participate in power use reduction.

1 is a block diagram of a system having a power demand management function according to an embodiment of the present invention.
2 is a flowchart of a power usage management method according to an embodiment of the present invention.
3 is a configuration diagram of a server having a power demand management function according to an embodiment of the present invention.
4 is a block diagram of a communication device having a power demand management function according to an embodiment of the present invention.
5A and 5B show screens for outputting guide information according to an embodiment of the present invention.
6 illustrates a screen for outputting compensation information according to an embodiment of the present invention.
7 is a block diagram illustrating a power entry point energy measuring apparatus according to an embodiment of the present invention.
8 to 10 are flowcharts showing the operation of each component of the power entry point energy measuring apparatus according to an embodiment of the present invention.
11 is a block diagram illustrating a labeling server according to an embodiment of the present invention.
12 is a flowchart illustrating an operation of a labeling server according to an embodiment of the present invention.

The following is merely illustrative of the principles of the invention. Therefore, those skilled in the art will be able to devise various devices that, although not explicitly described or shown herein, embody the principles of the invention and are included in the spirit and scope of the invention. It should also be understood that all conditional terms and examples listed herein are, in principle, expressly intended only for the purpose of understanding the inventive concept, and not limited to the specifically enumerated embodiments and states as such. do.

The above-described objects, features and advantages will become more apparent through the following detailed description in relation to the accompanying drawings, and accordingly, those of ordinary skill in the art to which the invention pertains will be able to easily practice the technical idea of the invention. .

In addition, in the description of the invention, if it is determined that a detailed description of a known technology related to the invention may unnecessarily obscure the gist of the invention, the detailed description thereof will be omitted. Hereinafter, it will be described with reference to the accompanying drawings.

Hereinafter, a server, a communication device and a system having a power demand management function, and a power demand management method thereof according to an embodiment of the present invention will be described with reference to FIGS. 1 to 6 .

Before describing the present invention, terms mainly mentioned in the present specification will be defined.

First, the request signal for power use reduction may include information on at least one of an amount of power required to reduce power use, a time period for requesting power saving, and a region for requesting a reduction in power use. For example, the request signal may include information for reducing 10,000 KWh (required power saving) from 2 pm to 5 pm (time saving request time period) on May 1, 2015. Furthermore, the request signal may further include information for designating a specific area (eg, Suwon-si, Gangnam-gu, Seoul, etc.) as the reduction request area.

Next, the subscriber information includes at least one of a probability distribution function of reduction of the entire load device or each load device for each subscriber or information on the power usage and predicted usage by each of the load devices and the reduction for the entire load device or each load device according to the compensation for each subscriber. may include Furthermore, the subscriber information may further include registration information on the subscriber's communication device and load device, information on power usage fee for each subscriber, and the like.

Next, the guide information on power consumption reduction includes information on at least one of the amount of power saving required for a subscriber selected to request power consumption reduction, the current status of power use of the corresponding subscriber, the time period required for saving, and expected compensation according to the reduction. may be included, and may be provided for all load devices or individual load devices used by the subscriber.

Next, the information on the compensation for power consumption reduction may include information on points that can be used when paying a power usage fee discount or power usage fee given to a corresponding subscriber in proportion to the actual power saved corresponding to the guide information. .

The server 300 having a power demand management function mentioned below may be the same server as the labeling server 200 to be described in FIG. 7 (same configuration), and in this case, labeling for performing a power demand management function to be described later It may further include components compared to the server 200 . Alternatively, the server 300 may be a server provided separately from the labeling server 200 in order to perform a power demand management function to be described later (separate configuration).

In addition, the power entry point energy measuring apparatus 100 mentioned below will be described later with reference to FIG. 7 .

1 is a block diagram of a system having a power demand management function according to an embodiment of the present invention, and FIG. 2 is a flowchart of a power use management method according to an embodiment of the present invention.

Although the labeling server 200 is not shown in FIG. 1, the server 300 performs the function of the labeling server 200 (in the case of the same configuration), or a labeling server 200 separately from the server 300 is further added. can be assumed to contain (if separate configurations).

As shown in FIG. 1 , the system 700 having a power demand management function transmits guide information on power use reduction to the power entry point energy measuring device 100 and the communication device of the subscriber who wants to request power use reduction. The transmitting server 300, the communication device 400 for outputting guide information on power use reduction received from the server 300, at least one load device 500 used by the subscriber of the communication device 400, and The server 300 may include a power supplier-related server 600 that transmits a request signal for power consumption reduction.

In addition, according to an embodiment of the present invention, the system 700 having the power demand management function may be additionally connected to the sponsor server 610 and the carbon dioxide emission trading server 620 .

Hereinafter, an operation for each component for carrying out the present invention will be described with reference to FIG. 2 .

The server 300 receives a request signal for power use reduction from the power supplier-related server 600 (S210).

Here, the power supplier-related server 600 is a server managed by a power supplier (eg, Korea Electric Power Corporation) or a power supplier, and may perform overall operations related to power supply and control.

Upon receiving the request signal, the server 300 selects a subscriber who wants to request power consumption reduction using subscriber information (S220).

Here, the server 300 may store subscriber information, and update the subscriber information by reflecting the subscriber's power usage status/pattern or update the subscriber information according to the subscriber's request.

The server 300 may select at least one subscriber who wishes to request power consumption reduction according to a predetermined criterion in consideration of power usage, predicted power usage, and probability distribution of reduction according to compensation. Accordingly, the server 300 may select a subscriber predicted to be able to fulfill the power use reduction request at the minimum cost. Alternatively, the server 300 may select a subscriber predicted to have a high response to the request for power consumption reduction.

The subscriber selection will be described later in detail with reference to FIG. 3 .

The server 300 transmits the guide information on power consumption reduction to the communication device 400 of the subscriber selected in the selection step (S220) (S230).

Here, the communication device 400 is a communication device of a subscriber registered in the server 300 for data communication with the server 300, and a mobile device such as a smart phone, a notebook computer, a tablet PC, and a fixed type equipped with a communication function. It may include all home appliances (eg, TV, refrigerator, air conditioner, etc.).

The server 300 monitors the power usage by at least one load device of the subscriber selected in the selection step (S220) (S240).

Accordingly, the server 300 may check whether the actual power consumption and the amount of power saved in the load device of the selected subscriber have been reduced to correspond to the guide information transmitted in the transmission step (S230) (S250).

For monitoring of power usage, it can be understood with reference to the previous description of data collection and extraction related to power usage by the labeling server 200 .

The server 300, for example, when it is determined that the power usage has been reduced to correspond to the guide information in the confirmation step (S250), may give a compensation corresponding to the power usage reduction (S260).

The server 300 may determine a compensation to be given to the corresponding subscriber in consideration of the amount of power actually saved to correspond to the guide information.

For example, the server 300 may grant compensation in proportion to the amount of power saved. In addition, the server 300 may grant a compensation for the power usage fee, and may grant the compensation in the form of a discount on the power usage fee or a point payment that can be used to pay the power usage fee.

Alternatively, the compensation according to an embodiment of the present invention may include cash, a gift, a coupon, etc. provided by the sponsor server 610 other than the power supplier-related server. In this case, the server 300 may receive cash, a gift, a coupon, etc. from the sponsor server 610 in electronic form. Alternatively, the server 300 may accumulate electronically converted points in the sponsor's account to correspond to cash, gifts, and coupons provided from the sponsor. The server 300 calculates the amount of power consumption reduction corresponding to the cash, gift, coupon, or conversion point provided for each sponsor. In addition, the sponsor server 610 may acquire carbon dioxide emission credits from the carbon dioxide emission rights trading server 620 based on the calculated amount of power consumption reduction. In this case, "based on the amount of power consumption reduction" means all cases in which the amount of carbon dioxide reduction is converted based on the amount of power use reduction, and a person skilled in the art can convert the amount of reduction in power use into the amount of carbon dioxide reduction using an existing method. In addition, the carbon dioxide emission trading server 620 can confirm that the power reduction has been made corresponding to the cash, gift, coupon, etc. provided by the sponsor server 610 from the power supplier-related server 600 or server 300. .

The server 300 may transmit information (hereinafter, compensation information) about the reward granted in the granting step ( S260 ) to the communication device 400 of the corresponding subscriber ( S270 ).

Accordingly, the subscriber of the communication device 400 may check whether the actual power usage fee is discounted by his/her power saving action and the degree of discount. This can have the effect of inducing subscribers to actively participate in power saving when power saving is required.

FIG. 3 shows a detailed configuration diagram of the server 300 having the power demand management function shown in FIG. 1 .

Referring to FIG. 3 , the server 300 includes a storage unit 310 for storing subscriber information, a receiving unit 321 for receiving a request signal for power consumption reduction, and a receiving unit 321 for receiving the request signal by using the subscriber information. A selection unit 331 that selects a subscriber who wants to request power consumption reduction, a transmission unit 322 that transmits information about power consumption reduction to a communication device of the selected subscriber, and a load device of the selected subscriber It may include a monitoring unit 332 for monitoring power usage and a compensation management unit 333 for granting a predetermined compensation to a corresponding subscriber when the power usage by the load device decreases according to the guide information.

Here, the receiver 321 and the transmitter 322 may be implemented as respective communication modules or may be implemented as a single communication module 320 . In addition, the selection unit 331 , the monitoring unit 332 , and the compensation management unit 333 may be implemented as respective modules or may be implemented as a single control module 330 .

The storage unit 310 may store subscriber information, and in particular, information on power usage for each subscriber. For example, as subscriber information, information on power consumption by total load devices or individual load devices for each subscriber, an hourly power usage profile, and information on power saving history according to guide information may be stored. More specifically, the power saving history according to the guide information corresponds to the previous guide information including the compensation method and amount, whether actual power usage has been reduced, the amount of power saved, information about the load device that has reduced the amount of power, etc. may include

The receiver 321 may receive a request signal for power use reduction from the power supply related server 600 before the start of the period/time zone for which the power use reduction is required.

For example, the power supply-related server 600 may transmit a request signal one week before, one day before, or one hour before the start of the period/time zone for which power consumption reduction is required. This is to induce an active power consumption saving action by providing guide information on power usage reduction to the subscriber before the period/time for which power usage reduction is required.

The selector 331 may select at least one subscriber who wishes to request power consumption reduction according to a predetermined criterion in consideration of power usage, power usage per hour, probability distribution of reduction according to compensation, and the like. Accordingly, the server 300 may select a subscriber predicted to be able to perform a power consumption reduction request with minimal cost. Alternatively, the server 300 may select a subscriber predicted to have a high response to the request for power consumption reduction.

For example, the selection unit 331 considers the degree of power usage in the time period required for reduction, the predicted value of strategic use in the time period required for reduction, the response rate / amount of energy saved for the existing power use reduction, the probability distribution of reduction according to compensation, etc., At least one subscriber may be selected so as to reduce the cost at a minimum. According to an embodiment of the present invention, the probability distribution of the reduction according to the compensation is estimated based on the actual amount of energy saved for the past power use reduction request. can do. In addition, a change in the user's usage with respect to the rate change according to the progressive stage can also be used to generate a probability distribution of savings according to the compensation. The distribution of the probability of achieving the reduction target according to the compensation may change depending on the predicted amount of power use for each load device or the entire load device for the time to be reduced.

For example, FIG. 13 is a diagram illustrating the probability distribution of reduction achievement with respect to the reduction request amount according to different compensation amounts per unit usage estimated for each subscriber. In FIG. 13 , the horizontal axis indicates the reduction request amount, and the vertical axis indicates the probability of achieving the reduction request amount. Different curves mean different compensation amounts per unit usage. The amount of compensation per unit usage may vary depending on the time of request for reduction because the unit cost of power generation varies due to weather conditions, power supply reserve ratio, etc.

The selection unit 331 considers the probability distribution F _i (Δ;p) of the reduction according to the compensation configured for each individual user with respect to the amount of power required to be reduced (W) and the amount of compensation per unit usage (p) included in the request signal. Calculate the unit compensation amount that can satisfy the required amount of electricity to be reduced by cost and the reduction request amount (Δ _i ) for each individual user (i=1,……n).

FindΔ _i , p

that minimizes

such that

Here, the probability distribution function of the reduction is estimated for each device, so that the reduction request amount for each device can be calculated. Alternatively, the selector 331 may set the expected value of the response rate and usage reduction history for each subscriber or each subscriber load device to the request signal. Subscribers can also be selected to meet the included power saving requirements.

In addition, the selector 331 may select a subscriber by calculating an expected amount of energy required to be reduced by a predetermined amount compared to the amount of electricity required to be reduced included in the request signal. This is to prepare for the existence of subscribers who do not participate in power saving among the selected subscribers.

For example, when receiving the request signal (requesting to reduce 10,000 KWh at 2 pm tomorrow), the selector 331 considers the power consumption at 2 pm, the response rate and the amount of savings according to the previous guide information, Subscribers can be selected so that the expected amount of energy required for saving is 20,000 KWh. At this time, when the power saving response rate to the existing guide information is 50%, the selector 331 calculates twice the required power saving amount included in the request signal as the expected power saving required power amount, and selects a subscriber based on this. can

In addition, the selector 331 may select a subscriber who wants to request power consumption reduction, except for a subscriber who generally uses only basic power during a time saving request period. Here, the basic power may mean standby power of the load device or minimum power for maintaining an active state. The selector 331 may exclude a load device using only basic power from the selection target of power saving because the possibility of power saving is very low.

For example, the selector 331 calculates, for all subscribers, a power value obtained by limiting the basic power usage from the predicted power usage in the required time period for power consumption reduction, and determines the calculated power value as the amount of power that can be saved and saves It is possible to calculate the expected amount of power required to be reduced within the amount of available power, the subscriber requesting the reduction, and the required amount of power to be saved by each subscriber.

In addition, when the selected subscriber uses a plurality of load devices, the selector 331 may determine the total amount of power saving required for the selected subscriber, a load device capable of saving power, or a required amount of power saving for each load device. have.

Also, when the request signal includes information on a specific region requiring power saving, the selector 331 may set a subscriber who wants to request power saving among subscribers residing in the specific region.

The transmitter 322 may transmit the guide information (①) on the power use reduction to the communication device 400 of the subscriber selected by the selector 331 .

For example, guidance information includes the time period when power saving is required, the amount of power required to be reduced, the amount of energy that can be saved for the entire load device or individual load devices, and a guide for reducing power use (e.g., how many degrees to lower the air conditioner temperature? , increase the refrigerator's refrigeration/freezing temperature, unplug unused electronic appliances, etc.)

The monitoring unit 332 may monitor the power usage by the load device of the selected subscriber after the guide information is transmitted. This is to determine whether the power use by the subscriber's load device has actually decreased or to what extent the reduced power consumption corresponds to the guide information, and to provide compensation later based on this.

When the power usage by the load device of the selected subscriber is reduced according to the transmitted guide information, the compensation management unit 333 may provide a predetermined compensation to the corresponding subscriber in proportion to the reduced power usage. More specifically, the compensation management unit 333 may provide compensation for the power usage fee.

For example, the compensation management unit 333 may grant compensation in a manner of discounting power usage fees or paying points that can be used to pay power usage fees. Alternatively, the compensation management unit 333 may award cash, gifts, coupons, etc. received from the sponsor server 610 as compensation.

Furthermore, the transmitter 322 may transmit information on power saving (hereinafter, referred to as saving information) according to the guide information for each subscriber to the power supply-related server 600 , and the power supply-related server 600 provides the saving information It is possible to determine whether or not to save power included in the , and a compensation corresponding to the amount of power saved, and transmit information thereon to the server 300 . Accordingly, the compensation management unit 333 may provide a compensation to the corresponding subscriber based on the compensation information received from the power supply related server 600 .

Meanwhile, the compensation management unit 333 may preset compensation grant criteria based on whether power is saved according to the guide information and the amount of power saved, and may grant compensation to the corresponding subscriber based on the compensation grant criteria.

The transmitter 322 may transmit the information on the granted compensation (hereinafter, compensation information) (②) to the communication device 400 of the corresponding subscriber.

FIG. 4 is a block diagram of the communication device 400 having the power demand management function shown in FIG. 1 .

According to FIG. 4 , the communication device 400 includes a communication unit 410 that receives guide information on power consumption reduction from the server 300 , a control unit 420 that executes a power-related application in response to receiving the guide information, and An output unit 430 for outputting the guide information by executing the power-related application may be included. In addition, the communication device 400 may further include a storage unit 450 for storing power-related applications, guide information, compensation information, and the like.

Here, the controller 420 may control the operation of at least one of the communication unit 410 , the output unit 430 , the input unit 440 , and the storage unit 440 .

Here, the power-related application means an application for managing the power use of load devices owned by the subscriber of the communication device 400, and is installed at the time of production of the communication device 400 or downloaded from an external server by the subscriber's selection. can be installed.

When receiving guide information, the controller 420 may automatically execute a power-related application or execute a power-related application only when an execution command is input from the subscriber after providing a notification of receiving guide information to the subscriber.

For example, the guide information reception notification may display brief contents of the guide information, or may simply output a vibration/lamp/alarm sound to inform only whether the guide information has been received.

The output of the guide information will be described later with reference to FIGS. 5A and 5B.

In addition, the communication unit 410 receives, from the server 300, information about compensation (hereinafter, compensation information) given in response to the power consumption reduction according to the guide information, and the output unit 430, a power-related application. By executing it, the received compensation information can be output. The output of the compensation information will be described later with reference to FIG. 6 .

With respect to the notification of the reception of the reward information, since the description of the notification of reception of the guide information described above may be cited, a detailed description thereof will be omitted.

In addition, the communication device 400 may further include an input unit 440 that receives a power saving command for at least one load device by executing a power-related application, and the communication unit 410 responds to the power saving command. A power saving command signal may be transmitted to the corresponding load device 500 .

For example, the communication device 400 receives a command/selection related to operation control for each load device (eg, power on/off, temperature control of an air conditioner/refrigerator, etc.) from a subscriber through the input unit 440 . can More specifically, the input unit 440 may receive a selection of a load device for which power saving is desired from a subscriber or may receive an input of a power saving method for each load device.

When the load device 500 receives the power saving command signal (①), the load device 500 may reduce power usage to correspond to the power saving command signal. Furthermore, the load device 500 may transmit, to the communication device 400 , a response (hereinafter, a response signal) (②) indicating whether a power saving operation has been performed to correspond to the power saving command signal.

For example, when the load device 500 is a refrigerator and the power saving command signal includes a recommended refrigerator/freezer temperature for a predetermined time, the recommended refrigerator/freezer temperature may be maintained for a predetermined time. Alternatively, when the load device 500 is a computer and the power saving command signal includes a power off command, the power of the computer may be turned off.

5A and 5B show screens for outputting guide information on power consumption reduction according to the present invention. Here, it is assumed that the guide information may be output when the power-related application is executed.

According to FIG. 5A , the communication device 400 provides, as guide information, a time period (2:30 pm to 3:00 pm) in which power consumption reduction is required and expected compensation information (accumulation of 5,000 points in a reserve) according to power consumption reduction. screens can be displayed.

Referring to FIG. 5B , the communication device 100 motivates the user to participate more actively in the future by displaying a list of details achieved by the subscriber according to the power use reduction guide information and the amount of compensation therefor.

6 illustrates a screen for outputting compensation information for power consumption reduction according to the present invention. Here, it is assumed that the compensation information may be output when a power-related application is executed.

According to FIG. 6 , the communication device 400 displays the acquired compensation points (eg, 3200 Points) when points (hereinafter, compensation points) that can be used to pay power usage fees are acquired in response to power consumption reduction. and may present a plan for converting the acquired reward points into cash. Furthermore, the communication device 400 displays the total amount of reward points converted into cash (eg, 777,777,777 won) and the rank of the communication device 400 subscribers (eg, 37th place) among the total number of subscribers can do.

Hereinafter, with reference to FIGS. 7 to 12 , a labeling server generating power information by labeling a power entry point energy measuring apparatus and a data set received therefrom according to an embodiment of the present invention will be described.

7 is a block diagram illustrating an apparatus 100 for measuring power entry point energy according to an embodiment of the present invention.

In this embodiment, the power entry point energy measuring device 100 is hardware that generates an anonymous load clustering data set in order to estimate the energy consumption of individual energy devices and internal components connected to the entry point from the total power consumption of the power entry point. Executes the algorithm and transmits it to a specific server 200 .

That is, the power entry point energy measurement device 100 according to the present embodiment is installed together with a single sensor at the power entry point, and is a device equipped with a series of hardware algorithms capable of measuring the total electrical energy usage and estimating the energy usage of individual load devices. to be. The pre-information processing process for each load device performed by the hardware algorithm is summarized as follows.

First, a snapshot is extracted from a voltage/current signal, a reference point is extracted, and noise filtering is performed. It extracts the operation state and operation state change such as on/off event. And the final clustering data set is generated by pattern matching load classification through voltage-current correlation, high-frequency distortion, current/power snapshot signal strain, active/reactive power correlation, etc. related to load characteristics. The generated clustering data set is sent to a specific server or cloud through data compression as an anonymous, non-user-recognizable name (eg 1, 2, 3, or load classification markers such as A, B, C).

Hereinafter, it will be described in more detail with reference to FIG. 7 . Referring to FIG. 7 , the power entry point energy measurement apparatus 100 according to the present embodiment includes a power information collection unit 110 , an operation state extraction unit 120 , a data set generation unit 130 , and a transmission unit 140 . includes

The power information collecting unit 110 according to the present embodiment collects power information including power signals at at least one power input point for a plurality of load devices.

Load equipment includes energy-using equipment or parts that use electrical energy. The power entry point is, for example, a node at which power is introduced to a plurality of load devices, such as a power entry point of a switchboard or a distribution board of each home. Hereinafter, the operation of the power information collection unit 110 according to the present embodiment will be described in more detail with reference to FIG. 8 .

In this embodiment, the power information collection unit 110 first performs a power signal measurement step (S112). In the power signal measuring step (S112), the raw power information waveform of current and voltage is measured through an energy measuring device and a single sensor installed at the power entry point.

Next, the power information collection unit 110 performs a snapshot extraction step (S114). The snapshot extraction step S114 collects a voltage or current snapshot of the AC waveform of a predetermined period. In this embodiment, it is preferable to extract a snapshot of the voltage of one cycle of alternating current and the current of high frequency.

Next, the operation state extractor 120 according to the present embodiment extracts the operation state or a change pattern of the operation state of the load device by classifying the normal or transient state of the power change from the collected voltage or power information. This will be described in more detail with reference to FIG. 3 .

Referring to FIG. 9 , the operation state extraction unit 120 first performs the power information and reference point extraction step ( S116 ). That is, real-time power usage and power quality information are extracted, and a reference point for classifying normal or transient states is extracted.

In the present embodiment, it is preferable that the reference point is the power consumption that is constantly turned on without being turned on/off in individual load devices through real-time power usage and power quality information extraction and is constantly used without change.

Next, the transient response separation step (S118) extracts a transient state section in which the operation state is changed or turned on/off by the operation of an individual load device from the power consumption.

Furthermore, in the present embodiment, the operation state extractor 120 may perform the noise removal step ( S120 ). In the noise removal step ( S120 ), meaningless high-frequency noise signals generated in the measurement of power signals of the total power consumption are removed.

In addition, the operation state extractor 120 classifies the snapshot according to the extracted operation state or a change pattern of the operation state. For example, when it is determined as a transient response operation, the snapshot extraction frequency may be much higher than that of the normal state.

Referring back to FIG. 9 , snapshots of events are classified for each on/off state prior to clustering for each individual load device through the on/off event detection step S122.

Next, in the state transition change detection step ( S124 ), a change pattern of an operation state for loads having a multi-step or continuous change characteristic other than an on/off operation is detected and classified.

After detecting the state trend change, the real-time total power amount data processing step S126 generates power information data calculation, storage, and transmission data packets for total energy usage and power quality information for a real-time power usage service.

Next, the data set generating unit 130 according to the present embodiment generates a data set for each individual load device that matches the operating state or a change pattern of the operating state through signal correlation according to the power usage characteristics of the individual load devices. . Hereinafter, it will be described in more detail with reference to FIG. 4 .

Referring to FIG. 10 , the data set generator 130 performs a load feature extraction step ( S130 ).

In the present embodiment, the load characteristic extraction step (S130) utilizes snapshots, transient responses, on/off events, and state trend change information extracted from the total power usage data to determine the signal correlation reflecting the power usage characteristics of individual load devices. create The signal correlation may include voltage/current correlation, high-frequency distortion, current/power signal distortion, active/reactive power correlation, and the like.

Next, the data set generator 130 performs on/off event matching and pattern matching load classification to generate a data set.

That is, the on/off event matching step (S132) classifies the on/off operation events for individual devices into pairs for the same device based on the generated signal correlation, and the pattern matching load classification step (S134) is the generated Based on signal correlation, multi-step or continuous change characteristics for the same device are classified into on/off operation events and related groups.

Next, the data set generation step ( S136 ) generates a data set bundled into a linkage group through on/off event matching and pattern matching load classification.

When the data set is generated, the transmitter 140 transmits the generated data set to the labeling server 200 that recombines the data set to generate labeled power information.

Prior to transmission, in the present embodiment, the data packet generated by the energy measuring device may be compressed to facilitate large-capacity data transmission to a specific server.

In addition, it is also possible to transmit power consumption and quality information data required to perform a real-time power energy information service.

Next, with reference to FIGS. 8 to 10, the snapshot extraction (ie, power signal sampling) cycle of the present invention and information processing efficiency according thereto will be described in detail.

First, it is important to appropriately select the snapshot extraction period in the power information collection unit 110 . When the snapshot extraction frequency is lower than a specific value, for example, less than once per second, the resolution of the transient section of the load device is low, so it is difficult to distinguish different individual load devices, and the snapshot extraction cycle is special. When it is higher than the fixed value, for example, thousands to tens of thousands of times per second, the resolution for the transient section is too high, so errors such as recognizing the same load unit as different load units may occur. Therefore, the snapshot extraction cycle for efficient pre-information processing of the energy measuring device at the power entry point is 10 to 900 times per second, which is appropriate.

Next, through the snapshot classification of the operation state extraction unit 120 (for example, in the snapshot extraction step S114), a snapshot is always extracted 15 times per second, but when there is no change in the operation state, one snapshot out of 15 Only 15 representative values or shots are selected and classified, and when a change in the operating state is detected, all 15 are selected and only the resolution of the transient section is raised separately) The information processing after the extraction of the operating state can be streamlined. That is, while the resolution of the transient section essential for analyzing energy use information for each device increases, the burden related to data traffic is reduced (for example, even when the transmitter 140 periodically transmits data once per second, the change in the operating state is When there is not, only one representative value calculated through selective and classified snapshots or divisional quadrature is transmitted, and in the transient state, 15 snapshots are transmitted at once). Some or all of the steps performed by the on/off event detection step S122, the state transition change detection step S124, and the data set generation unit 130 may be performed through the server.

Hereinafter, the labeling server 200 that receives the data set generated by the power entry point energy measuring apparatus 100 according to the above-described embodiment and generates labeled power information will be described with reference to FIG. 11 .

The labeling server 200 according to this embodiment provides a power user at the power entry point through a process such as machine learning and automatic labeling based on the received clustering data set for each load and real-time power usage and power quality information data set. Energy use information and saving tips can be consulted. That is, the labeling server may be a large-capacity data processing device that processes the total energy information received from the energy measuring device and the energy information for each load device to generate various energy saving solutions and consulting, and then displays them to the user.

That is, the labeling server 200 according to the present embodiment performs a specific post-information processing process through a software algorithm. The process reclassifies the anonymous load clustering data set into a multi-dimensional plane according to reference areas such as active power, reactive power, and time, and sets a classification boundary in the same load device through machine learning to turn on/off, multi-step, It is classified by specific operation or parts such as continuous change and constant start.

After completing the classification by mapping this to the real-time power consumption trend in the time domain, and grouping the sub-parts of each load device into the same device that the user can recognize (1+2+3 or A+B+C, etc.), Automatic labeling is performed by matching with the stored naming data sets of individual load devices (refrigerator, washing machine, air conditioner, etc.).

At this time, for energy devices for which automatic labeling has not been performed due to data not in the named data set, labeling is performed manually through means such as manually turning on/off the device and checking the corresponding time. Then, the manually generated data is added back to the previously collected data set and used for future automatic labeling.

Hereinafter, it will be described in more detail with reference to FIG. 11 .

Referring to FIG. 11 , the labeling server 200 according to the present embodiment includes a receiving unit 210 , a recombining unit 220 , and a labeling unit 230 .

First, the receiver 210 receives a data set generated by classifying power information based on component stages constituting an individual load device.

Next, the recombining unit 220 reclassifies the received data set in a multidimensional plane according to the operating characteristics of the individual load devices, and maps them according to the time domain and recombines them.

Prior to this, the recombining unit 220 may first perform the data decompression step ( S202 ). That is, when the power entry point energy measuring apparatus 100 transmits compressed data, data compression may be decompressed to increase the software algorithm execution speed.

When the compression is released, the recombining unit 220 maps the reclassified data to the power usage trend in the time domain and recombines the components in the same load device. This will be described in more detail with reference to FIG. 12 .

12 is a flowchart showing each step performed in the recombining unit 220 according to an embodiment of the present invention.

12, in the large classification load device classification step (S1204), the distribution plane is divided according to the load operation characteristics (on/off, multi-step, continuous change, always-start) for the individual load devices that are determined to be the same device. .

In the next feature-specific clustering step (S1206), the multi-dimensional plane is reconstructed to facilitate boundary setting in the distribution plane by linking the clustering data set and the large classification load device classification. In reconstructing the multidimensional plane, active power, reactive power, time, etc. may be reference regions.

When the multi-dimensional plane is reconstructed, the machine learning step (S1208) generates the motion of individual load devices or boundary classification criteria between parts by using a machine learning method based on a state classification algorithm such as a clustering result for each energy device and an artificial intelligence network. In the specific load device classification boundary setting step (S1210), the data is reclassified by performing load classification at the individual component level on the clustering data using the machine learning boundary classification criterion. At this time, the detailed classification of the load in the anonymous method is determined from the total amount of electricity to the component level for individual energy devices.

The next time domain mapping step S1212 maps the data set for the anonymous parts reclassified in the above process to real-time data in the time domain.

In the classification step (S1214), the mapped data is divided into various colors or a user-recognizable display method at the component level.

In the next equal load recombination step (S1216), the sub-parts in the individual load devices generated in the division step are combined to create a group as a load device recognizable by the user. For example, the compressor, motor, lamp, and control circuit characteristics generated in the classification step are combined and grouped into a refrigerator. (Internally, we use numbers like 1, 2, 3, and anonymous temporary markers like A, B, C).

After performing the recombination step, the labeling unit 230 labels the recombined data set. For example, the name of the corresponding load device is automatically matched by linking with the pre-stored load device data set for the temporary mark data of the bearer classified as an individual load device. For example, A, B, C, etc. may be automatically named as refrigerators, TVs, washing machines, etc. through a matching algorithm with data patterns and stored data.

Also, in this embodiment, the labeling may be manually input. Even though automatic labeling is performed, for the loads that do not match the pre-established load device data and exist anonymously, the developer or user manually names the device and inputs it. It is also possible to utilize the on/off time of the device.

In addition, for individual load devices for which manual labeling has been performed, the corresponding data can be separately stored along with the name to extend the pre-established load device data set.

Furthermore, the labeling server 200 may provide data analysis information using energy use information of individual load devices. That is, it is also possible to generate a specific data set by applying data interpretation based on a behavioral psychology analysis algorithm to the total power and energy use patterns of individual load devices.

In addition, it is possible to automatically generate expert consulting tips that can induce users to save energy through the data analysis.

Furthermore, it is possible to provide all services such as the total amount of electricity, individual load device usage, and energy saving consulting to specific buildings and unit households through an energy IT specialist.

As an example of various energy consulting, it is also possible to detect changes in the clustering data set divided by the component level in relation to the status of individual load devices, determine the aging state or failure status of individual load devices, and provide them to users.

According to the above embodiment, it is possible to extract individual component energy use information of various load devices by performing a combination of the hardware algorithm of the instrument and the software algorithm of the server with respect to the total power use information at the power entry point.

In addition, since the software algorithm of the server is flexibly combined with a single energy measuring device, it is possible to derive a luxurious energy saving plan by extracting detailed and accurate energy use information of each load device without burdening the high cost of installing the system through multiple devices. . In particular, it is possible to acquire energy use information higher than the branch circuit level without employing multiple sensors in the distribution panel.

In summary, the present invention does not require a specific server to perform the entire algorithm in extracting individual load device energy usage information from the total electrical energy usage information measured at the power entry point, but energy measuring devices (pre-information processing processor, hardware algorithm, clustering). Data set generation, etc.) and server (post-information processing processor, software algorithm, labeling and energy-saving tip generation, etc.) That is, in a single energy measuring device, pre-information processing is performed to have a resolution capable of distinguishing between parts, and the server focuses on data storage, pattern analysis, and data utilization, which are its strengths, so as to process/process large amounts of data related to energy use of various loads. You can secure flexibility in storage/management.

The above description is merely illustrative of the technical idea of the present invention, and various modifications, changes and substitutions are possible within the scope that does not depart from the essential characteristics of the present invention by those of ordinary skill in the art to which the present invention pertains. will be.

Accordingly, the embodiments disclosed in the present invention and the accompanying drawings are for explaining, not limiting, the technical spirit of the present invention, and the scope of the technical spirit of the present invention is not limited by these embodiments and the accompanying drawings. . The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

Claims (23)

a storage unit for storing information including power usage for at least one load device of the subscriber;
a receiver for receiving a request signal for power consumption reduction;
a selection unit for selecting a subscriber who wants to request power consumption reduction using the subscriber information in response to receiving the request signal;
a transmitter configured to transmit guide information on power consumption reduction to the selected subscriber's communication device;
a monitoring unit for monitoring power usage by the selected at least one load device; and
and a compensation management unit that grants a predetermined compensation to the corresponding subscriber when the power consumption by the load device decreases according to the guide information;
The selector calculates the amount of compensation per unit usage that satisfies the required amount of electricity and the amount of reduction requested by each user in consideration of the probability distribution of reduction according to the compensation, and the probability distribution of reduction according to the compensation is based on the request for reduction of power in the past. A server with a power demand management function that is calculated based on the actual amount of power saved for the server. According to claim 1, wherein the subscriber information,
Power consumption by all or each load device per subscriber;
power usage information by the entire load device per subscriber or by each load device per hour; and
Information on power consumption reduction history according to information provided by each subscriber
Estimated amount of power usage by all or each load device per subscriber
A server having a power demand management function including at least one of a probability distribution function of reduction in power use for all load devices for each subscriber or for each load device. According to claim 2, wherein the selection unit,
Having a power demand management function for selecting a subscriber based on at least one of the power usage, the hourly power usage information, the power usage reduction history according to the guide information, the predicted power usage amount, and a probability distribution function of the power usage reduction server. According to claim 3, wherein the selection unit,
A server having a power demand management function for selecting a subscriber to have a minimum cost based on at least one of the power usage, the predicted power usage, and a probability distribution function of power usage reduction According to claim 1, wherein the request signal,
A server having a power demand management function including information on at least one of a required amount of power to be reduced for power use or information about on, off, and operation mode for each load device, a time period for a reduction request, and an area for demanding reduction. According to claim 1, wherein the guide information,
A server having a power demand management function including information on at least one of the amount of power saving required for the selected subscriber, the current status of power usage of the selected subscriber, the time required for saving, and compensation according to the reduction. The method of claim 1, wherein the compensation management unit,
A server with a power demand management function that grants compensation for power usage fees. The method of claim 7, wherein the server having the power demand management function,
A server having a power demand management function that receives at least one of cash, a gift, and a coupon from a sponsor server, or transmits information related to a reward target subscriber to the sponsor server, and grants at least one of the cash, gift, and coupon as a reward. The method of claim 8, wherein the sponsor server
A power demand for acquiring carbon dioxide credits from a carbon dioxide trading server based on the amount of power consumption reduction corresponding to the cash, gift, coupon, etc., and the carbon dioxide trading server confirms the amount of power consumption reduction from the server having the power demand management function A server with administrative functions. The method of claim 1, wherein the transmitter comprises:
A server having a power demand management function for transmitting information on the granted compensation to a communication device of the corresponding subscriber. The method of claim 1, wherein the transmitter comprises:
A server having a power demand management function for transmitting information on the amount of power saved according to the guide information for each subscriber to a server related to a power supplier. According to claim 2, wherein the receiving unit receives the power consumption measured by the energy measuring device installed at the subscriber's power entry point,
A server having a power demand management function in which the power usage for each of the load devices is calculated by a labeling server. The method of claim 11, wherein the monitoring unit
A server having a power demand management function for monitoring power usage for each of the load devices calculated by the labeling server. a communication unit configured to receive guide information on power consumption reduction from the power usage management server;
a control unit configured to execute a power-related application in response to receiving the guide information; and
and an output unit for outputting the guide information by executing the power-related application,
The communication unit receives information about the compensation given in response to the power consumption reduction according to the guide information,
The output unit outputs information about the compensation by executing the power-related application,
The control unit controls the operation of at least one of the communication unit and the output unit,
The amount of compensation is a communication device having a different power demand management function for each subscriber or load device of the subscriber according to the time of request for reduction due to weather conditions and power supply reserve ratio. 15. The method of claim 14, wherein the guide information,
A communication device having a power demand management function including information on at least one of a required amount of power to be reduced, a current status of power use, a time for demanding to be reduced, and a compensation according to the reduction. 15. The method of claim 14, wherein the information about the compensation,
A communication device having a power demand management function including information on at least one of a power usage fee discount and a point convertible into a power usage fee. 15. The method of claim 14,
Further comprising an input unit for receiving a power saving command for at least one load device by executing the power-related application,
The communication unit,
A communication device having a power demand management function for transmitting a power saving command signal to a load device corresponding to the power saving command. a server that selects a subscriber who wants to request power consumption reduction using subscriber information in response to receiving a request signal for power consumption reduction, and transmits information about power consumption reduction to a communication device of the selected subscriber; and
and a communication device that executes a power-related application when receiving the guide information from the server and outputs the guide information as a result of the execution,
The server grants a predetermined compensation to the selected subscriber when the power usage by the load device of the selected subscriber decreases according to the guide information,
The server calculates the amount of compensation per unit usage that satisfies the required amount of power consumption and the reduction request amount for each individual user in consideration of the probability distribution of reduction according to the compensation, and the probability distribution of the reduction according to the compensation is based on the previous power use reduction request. A system with a power demand management function that is calculated based on the actual amount of power saved for storing subscriber information;
Receiving a request signal for power use reduction;
selecting a subscriber who wants to request power consumption reduction using the subscriber information in response to receiving the request signal;
transmitting guide information on power use reduction to the selected subscriber's communication device;
monitoring the power usage by the load device of the subscriber; and
and when the power consumption of the load device decreases according to the guide information, providing a predetermined compensation to the corresponding subscriber;
In the selecting step, a compensation amount per unit usage that satisfies the required amount of power consumption and a reduction request amount for each individual user are calculated in consideration of the probability distribution of reduction according to the compensation. A method of managing power usage that is calculated based on the actual amount of power saved for the request. The method of claim 19, wherein the storing step comprises:
Information on the total power consumption and peak power usage time by all or each load device for each subscriber; and
A power usage management method for storing at least one of information on a power usage reduction history according to guide information for each subscriber. The method of claim 19, wherein the selecting step,
A power usage management method for selecting a subscriber predicted to have a high response to a power usage reduction request in consideration of at least one of the power usage, the maximum power usage time, and the power usage reduction history according to the guide information. 20. The method of claim 19,
The method further comprising the step of transmitting information on the granted compensation to the communication device of the corresponding subscriber. 20. The method of claim 19,
The method further comprising the step of transmitting information on the amount of power saved according to the guide information for each subscriber to a power supply related server.

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