KR102101735B1 - Electric Power Energy Management Method in Distributed Circuits, and Media Recorded with Program Executing the Method - Google Patents

Abstract

Disclosed are a method for managing power energy for each distributed circuit and a recording medium recording a program executing the method for managing power energy for each distributed circuit. The method is a power energy management method using a power energy management device installed in each household distribution panel. The power energy management device is implemented through a process of measuring a current for each distributed circuit in a distribution panel, and operating the power consumption for each distribution circuit based on a measurement value of a current for each distribution circuit. According to the present invention, a user can check the power consumption for each distribution circuit in the distribution panel, so that a power energy management plan for each individual household appliance can be made. In addition, according to the present invention, since the generation of an arc current causing the fire occurrence can be detected for each distribution circuit, the occurrence of a fire caused by the arc current can be prevented in advance by blocking the power supply for each distribution circuit.

Description

Electric Power Energy Management Method in Distributed Circuits, and Media Recorded with Program Executing the Method}

The present invention relates to a recording medium on which a program for executing a power management method for each distribution circuit and a power management method for each distribution circuit is recorded. More specifically, as the user can check the power consumption for each distribution circuit in the distribution panel, In addition to being able to establish a power management plan for each individual household appliance, it is possible to detect the generation of arc current, which is a cause of fire, for each distribution circuit. The present invention relates to a recording medium on which a program for executing a power management method for each distribution circuit and a power management method for each distribution circuit are recorded to prevent occurrence in advance.

As part of the national power management policy, as electricity tariffs have been implemented for a long time, it is necessary for each household to manage the power consumption of individual household appliances, whereas the electricity meters installed in each conventional household have the power of households in the entire household. It is limited to providing only usage information.

In addition, an earth leakage breaker, which is usually installed in a household distribution panel in a household, operates when power information exceeding a preset threshold (for example, a reference current value) is measured.

On the other hand, in the smart home (HEMS) environment, even if the predetermined threshold is not exceeded due to the number of installations of various smart home appliances used in the home and the parameters of the operating environment, there is a risk of electric leakage and arcing.

However, the earth leakage breaker according to the prior art does not operate when the predetermined threshold value is not exceeded, and the previously set threshold value cannot be actively set according to the installation environment and usage environment of the current home appliance. There are limits.

In addition, the general earth leakage breaker according to the prior art has a technical limitation that it is impossible to predict the risk of electric fire due to the generation of the arc current because it is impossible to detect the arc current causing the fire.

In addition, since the arc breaker according to the prior art is operated through analog type load measurement, there is a technical limitation that the accuracy of arc current detection is low and the detection speed is not fast.

Therefore, as an object of the present invention, as the user can check the power consumption for each distribution circuit in the distribution panel, it is possible not only to make a power management plan for each individual household appliance, but also to generate an arc current that causes a fire. As it can be detected for each distribution circuit, the power management method for each distribution circuit and the power management method for each distribution circuit are executed so as to prevent the occurrence of fire due to arc current by blocking the power supply for each distribution circuit. It is to provide a recording medium in which a program is recorded.

A power management device according to the present invention for achieving the above object includes: a power management device installed in a distribution panel for each household, comprising: a measurement unit for measuring current for each distribution circuit in the distribution panel; And a calculation unit that calculates power consumption for each distribution circuit based on the measured value of the current for each distribution circuit.

Preferably, further comprising a determination unit for determining whether the arc current is generated for each distribution circuit based on the measured value of the current for each distribution circuit.

In addition, it further comprises a blocking unit for cutting off the power supply of the distribution circuit determined to have generated the arc current by the determining unit.

In addition, the communication unit receives a threshold current value used to determine whether or not the arc current is generated from the management server.

On the other hand, the power management method according to the present invention, the power management method using a power management device installed in the distribution panel for each household, (a) the power management device, measuring the current for each distribution circuit in the distribution panel; And (b) the power management device calculating power consumption for each distribution circuit based on the measured value of the current for each distribution circuit.

Preferably, (c) further comprising the step of determining whether or not the power management device generates an arc current for each distribution circuit based on the measured value of the current for each distribution circuit.

In addition, (d) the power management device, further comprising the step of cutting off the power supply of the distribution circuit is determined to have generated an arc current.

In addition, prior to step (a), the power management device further includes receiving a threshold current value used for determining whether or not the arc current is generated from the management server.

On the other hand, the recording medium according to the present invention is characterized in that a program for executing the method is recorded.

On the other hand, the arc current generation determination method according to the present invention, (a) the power management device, periodically measuring the current value in the distribution panel; (B) the power management device, comparing the measured current value and the reference current value in the distribution panel; And (c) the power management device determining that an arc current has occurred when the measured current value exceeds the reference current value for a predetermined reference time or more by a predetermined reference number of times.

Preferably, the step (a) is characterized in that the power management device measures the current value by a predetermined number of times per unit time using an ADC.

In addition, the step (a) is characterized in that the power management device measures the current value of each distribution circuit in the distribution panel at a predetermined number of times per unit time.

In addition, the current value is characterized in that the alternating current value.

On the other hand, the recording medium according to the present invention is characterized in that a program for executing the method is recorded.

According to the present invention, as the user can check the power consumption for each distribution circuit in the distribution panel, it is possible to make a power management plan for each individual household appliance.

In addition, according to the present invention, since it is possible to detect the generation of the arc current causing the fire for each distribution circuit, it is possible to prevent the occurrence of a fire caused by the arc current by blocking the power supply for each distribution circuit. do.

In addition, according to the present invention, by detecting the generation of the arc current through a digital measurement method, it is possible to quickly detect the generation of the arc current with high precision.

In addition, according to the present invention, it is possible to actively set the threshold value for the leakage protection operation in the distribution panel for each distribution circuit according to the installation environment and the use environment of the individual household appliances.

1 is a block diagram of a power management device management system through a network according to an embodiment of the present invention,
2 is a functional block diagram showing a structure of a management server providing a power management device management service through a network according to an embodiment of the present invention;
3 is a signal flow diagram illustrating an execution process of a power management device management method through a network according to an embodiment of the present invention,
4 is a functional block diagram showing the structure of a power management device according to an embodiment of the present invention,
5 is a flowchart illustrating a process of executing a power management method using a power management apparatus according to an embodiment of the present invention,
6 is a flowchart of a procedure for explaining an execution process of an arc current generation determining method according to an embodiment of the present invention, and
7 is a graph illustrating an arc current generation determining method according to an embodiment of the present invention.

Hereinafter, the present invention will be described in more detail with reference to the drawings. It should be noted that the same components in the drawings are denoted by the same reference numerals wherever possible. In addition, detailed descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention are omitted.

1 is a configuration diagram of a power management device management system through a network according to an embodiment of the present invention. Referring to FIG. 1, a power management device management system through a network according to an embodiment of the present invention includes a user terminal 100, a management server 200, and a power management device 300.

The user terminal 100 is a wireless communication terminal such as a smart phone possessed by a user living in a home where the power management device 300 is installed, and the user manages the power through a predetermined application program installed in the user terminal 100 Enter the rated current consumption value of the home appliance connected to the 300 or the model name information of the home appliance.

The management server 200 is a server installed and operated by an operator operating a power management device 300 management service through a network according to the present invention, and a management request message for the power management device 300 from the user terminal 100 In response to receiving, determining a threshold current value for an electric leakage blocking operation for each distribution circuit of the power management device 300 based on the management information included in the management request message, and determining the determined threshold current value to the power management device 300 It performs the function of transmitting.

The power management device 300 is installed on the top of the earth leakage breaker installed in the distribution panel of each household, and household appliances such as refrigerators, washing machines, and TVs are connected to each other, and the threshold current value received from the management server 200 Earth leakage protection function for each household appliance based on the.

Specifically, the power management device 300 measures the current for each distribution circuit to which various household appliances are individually connected, calculates the power consumption for each distribution circuit based on the measured value of the current for each distribution circuit, and also for each distribution circuit. Based on the measured value of the current, it is determined whether or not arc current is generated for each distribution circuit, and when it is determined that the arc current has occurred, the power supply to the distribution circuit is cut off, thereby reducing the risk of fire caused by arc current for each distribution circuit. Performs monitoring and management functions.

2 is a functional block diagram showing the structure of a management server providing a power management device management service through a network according to an embodiment of the present invention. Referring to FIG. 2, a management server 200 providing a power management device management service through a network according to an embodiment of the present invention includes a reception unit 210, a storage unit 230, a determination unit 250, and a transmission unit (270).

First, the reception unit 210 of the management server 200 receives a management request message for the power management device 300 from the user terminal 100. The management request message received from the user terminal 100 is stored in the storage unit 230 of the management server 200, and the determination unit 250 includes management information and power management device 300 received from the user terminal 100. The threshold current value for each distribution circuit for the leakage protection operation of the power management device 300 is determined based on the power usage information for each distribution circuit in the house.

Meanwhile, the transmission unit 270 of the management server 200 performs a function of transmitting threshold current value information for each distribution circuit determined by the determination unit 250 to the power management device 300.

3 is a signal flow diagram illustrating an execution process of a method for managing a power management device through a network according to an embodiment of the present invention. Hereinafter, an execution process of a method for managing a power management device through a network according to an embodiment of the present invention will be described with reference to FIGS. 1 to 3.

First, the user executes the application program installed in the user terminal 100, and then inputs management information of the power management device 300 installed in the home (S410).

In the implementation of the present invention, the management information input to the user terminal 100 in step S410 described above is input to the power management device 300, the rated current consumption value of individual household appliances used or model name information of household appliances. The universal unique identifier information of the IoT-based power management device 300 in the present invention, such as a universally unique identifier (UUID), may be additionally input as management information.

As the management information of the power management device 300 as described above is input through the application program installed in the user terminal 100, the application program generates a management request message including the management information, and the management thus generated The request message is transmitted to the management server 200 through the user terminal 100 (S420).

Accordingly, the reception unit 210 of the management server 200 receives a management request message for the power management device 300 from the user terminal 100, and the determination unit 250 of the management server 200 is included in the management request message Based on the management information of the power management device 300, a threshold current value required for an electric leakage blocking operation for each distribution circuit of the power management device 300 is determined (S430).

For example, the judging unit 250 of the management server 200 has a predetermined safety factor (for example, stored in the storage unit 230) in the rated current consumption value of the electronic product for each distribution circuit input by the user as management information. For example, the value multiplied by 0.9) may be determined as a threshold current value for each distribution circuit.

In addition, in the practice of the present invention, when the user inputs model name information of household appliances as management information, the judgment unit 250 of the management server 200 stores ratings for each model name information in the storage unit 230 The current consumption value may be searched, and a value obtained by multiplying the searched rated current consumption value by the predetermined safety factor may be determined as a threshold current value for each distribution circuit.

The critical current value information for each distribution circuit determined as described above is stored in the storage unit 230 of the management server 200 as shown in Table 1 below, and the transmitting unit 270 of the management server 200 is described above in S410. Based on the unique identifier information of the power management device 300 included in the management request message in step S300, the threshold current value information determined in step S430 described above is transmitted to the power management device 300 (S440).

Unique identifier (UUID) Primary threshold current value Secondary threshold current value 3F2504E0-4F89-11D3-9A0C-0305E82C3301 1.5A / 1.4A / 1.2A - 550e8400-e29b-41d4-a716-446655440000 2.0A / 1.8A / 2.1A - 450e3400-a57b-76v4-a314-456755240000 1.9A / 2.1A / 2.0A -

Accordingly, the power management device 300 receiving the threshold current value information for each distribution circuit from the management server 200 sets the received threshold current value as a reference threshold value for each distribution circuit in the home leakage protection management (S450). Specifically, the control module of the power management device 300 receives the threshold current value in the leakage protection management previously set at the time of product release of the power management device 300 from the management server 200 in step S440 described above. Update and set the threshold current value for each distribution circuit.

On the other hand, in the practice of the present invention, in step S440 described above, it is preferable that the management server 200 transmits the unique identifier information in Table 1 to the power management device 300 together with the threshold current value information for each distribution circuit. will be.

Accordingly, the control module of the power management device 300 executes a user authentication procedure by checking whether the unique identifier information received from the management server 200 matches its own unique identifier information, and manages only when both are matched. By setting the threshold current value for each distribution circuit received from the server 200, it is desirable to prevent the threshold current value for each distribution circuit of the power management device 300 from being changed by a person without proper authority. will be.

In this way, before the execution of step S410 described above, the user can perform NFC so that the user can secure the authority to change the threshold current value setting information for each distribution circuit of the power management device 300 through the management server 200 in advance. As the user terminal 100 equipped with the module is tagged to the NFC chip attached to the power management device 300, the unique identifier information of the power management device 300 stored in the NFC chip is the user terminal 100. It may be able to be input into the application program installed in.

In addition, in step S440, the management server 200 preferably transmits the address information (URL) of the management server 200 to the power management device 300 together with the threshold current value information for each distribution circuit. The power management device 300 may periodically transmit power usage information for each distribution circuit in the home according to the use of household appliances in the home to the management server 200 (S460).

Accordingly, the management server 200 periodically receives power usage information for each distribution circuit in the home from the power management device 300, and power usage information for each distribution circuit received from the power management device 300 is the power management device 300 ) Is accumulated in the storage unit 230 together with the unique identifier information.

On the other hand, in the practice of the present invention, it is preferable that the determination unit 250 of the management server 200 re-determines the threshold current value based on power usage information for each distribution circuit received from the power management device 300.

Specifically, the determination unit 250 of the management server 200 is a distribution circuit for a certain period (for example, the previous day / the previous month / the previous year) from the power usage information for each distribution circuit accumulated for the corresponding power management device 300. The average current value for each star may be calculated, and the calculated average current value may be re-determined as a threshold current value for each distribution circuit in the corresponding power management device 300.

It is preferable that the newly set threshold current value for each distribution circuit is stored in the storage unit 230 as a secondary threshold current value as shown in Table 2 below.

Unique identifier (UUID) Primary threshold current value Secondary threshold current value 3F2504E0-4F89-11D3-9A0C-0305E82C3301 1.5A / 1.4A / 1.2A 1.3A / 1.5A / 1.4A 550e8400-e29b-41d4-a716-446655440000 2.0A / 1.8A / 2.1A 1.9A / 2.0A / 2.2A 450e3400-a57b-76v4-a314-456755240000 1.9A / 2.1A / 2.0A 2.0A / 2.2A / 1.9A

Meanwhile, the transmitting unit 270 of the management server 200 transmits the threshold current value information for each distribution circuit re-determined in step S470 to the corresponding power management device 300 (S480), and accordingly from the management server 200 Upon receiving the updated threshold current value information for each distribution circuit, the power management device 300 resets the received threshold current value to a new reference threshold value for leakage protection management (S490).

On the other hand, in implementing the present invention, the determination unit 250 of the management server 200 in re-determining the threshold current value for each distribution circuit in step S470 described above, the primary threshold current value and the secondary threshold current value more By determining the threshold current value with a small value, it may be possible to perform more safety leakage protection management.

4 is a functional block diagram showing the structure of a power management device according to an embodiment of the present invention. 4, the power management device 300 according to an embodiment of the present invention, the measurement unit 310, the calculation unit 330, the communication unit 350, the storage unit 370, the determination unit 380, And a blocking unit 390.

First, the measurement unit 310 of the power management device 300 individually measures the current for each distribution circuit to which individual household appliances are electrically connected, and the measured current value for each distribution circuit is stored in the storage unit 370. Stored cumulatively.

On the other hand, the calculating unit 330 of the power management device 300 calculates the power consumption for each distribution circuit in real time based on the measured value of the current for each distribution circuit, and the power consumption information for each distribution circuit calculated in real time is a storage unit 370 ) And simultaneously output to the outside through a display device such as a monitor provided in the power management device 300.

Through this, the user can check and manage the power consumption according to the use of household appliances connected to each distribution circuit by household appliances.

The communication unit 350 of the power management device 300 receives the threshold current value for each distribution circuit from the management server 200, and the threshold current value information for each distribution circuit received from the management server 200 is stored in the storage unit 370. Is saved.

Meanwhile, the determination unit 380 of the power management device 300 determines whether arc current is generated for each distribution circuit by comparing the measured value of the current for each distribution circuit with a predetermined threshold current value (reference current value).

The blocking unit 390 of the power management device 300 performs a function of blocking power supply to the distribution circuit determined by the determining unit 380 to generate an arc current.

5 is a flowchart illustrating a process of executing a power management method using a power management apparatus according to an embodiment of the present invention. Hereinafter, an execution process of a power management method using a power management apparatus according to an embodiment of the present invention will be described with reference to FIGS. 4 and 5.

First, the power management device 300 separately measures the current value in each distribution circuit in which household appliances are individually connected, and the measured current value for each distribution circuit is stored in real time in the storage unit 370. It becomes (S510).

On the other hand, the calculating unit 330 of the power management device 300 calculates the cumulative power consumption for each distribution circuit in real time based on the measured value of the current for each distribution circuit, and the calculated cumulative power consumption for each distribution circuit is monitored. It is output in real time to the user through the display device (S530).

Meanwhile, the determination unit 380 of the power management device 300 determines whether arc current is generated for each distribution circuit by comparing a real-time measurement value of current for each distribution circuit with a predetermined threshold current value (reference current value) (S550). ).

Accordingly, when it is determined that an arc current has occurred in a specific distribution circuit, the blocking unit 390 of the power management device 300 prevents a fire caused by the arc current by cutting off the power supply to the distribution circuit (S570). ).

On the other hand, in the implementation of the present invention, the program for executing each step in the power management method according to an embodiment of the present invention in Figure 5 is installed in the internal memory of the power management device 300, and then the corresponding program By practicing, the present invention may be implemented.

6 is a flowchart illustrating a process of executing an arc current generation determining method according to an embodiment of the present invention. Hereinafter, a method of determining arc current generation for each distribution circuit in step S550 will be described with reference to FIG. 6.

First, the determination unit 380 of the power management device 300 determines whether the measured value of the current for each distribution circuit measured in real time in step S510 exceeds the predetermined reference current value (S551).

On the other hand, in the practice of the present invention, the measurement unit 310 of the power management device 300 in the above-described step S510 using a high-speed analog-to-digital converter (ADC) a predetermined number of measurements during a certain period (for example For example, it would be desirable to measure the alternating current value for each distribution circuit by 200 times for 1/60 seconds).

In addition, in the implementation of the present invention, when the current to be measured in the distribution circuit is an AC current, the storage unit 370 of the power management device 300 has a predetermined threshold current value for each distribution circuit received from the management server (reference It will be desirable that the normal AC current value information for each distribution circuit using the current value) as the effective value of the AC current is stored as shown in FIG. 7.

Meanwhile, when it is determined in step S551 that the measured current value exceeds the reference current value, the measurement unit 310 accumulates arc generation event information in the storage unit 370, and the power management device The determination unit 380 of 300 determines the number of times the event information is stored in the storage unit 370 for a predetermined reference time (for example, 1/120 second) is a predetermined reference number (for example, 100 times). It is determined whether or not (S553).

As a result, when it is determined that the number of times of storing event information for a predetermined reference time (for example, 1/120 seconds) exceeds a predetermined reference number (for example, 100 times), the power management device 300 ), The determination unit 380 finally determines that an arc current has occurred in the distribution circuit (S555).

On the other hand, in the implementation of the present invention, the program for executing each step in the arc current generation determination method according to an embodiment of the present invention in Figure 6 is installed in the internal memory of the power management device 300, and the corresponding The present invention may be implemented by executing a program.

The terms used in the present invention are only used to describe specific embodiments and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "include" or "have" are intended to indicate the presence of features, numbers, steps, actions, components, parts or combinations thereof described herein, one or more other features. It should be understood that the existence or addition possibilities of fields or numbers, steps, operations, components, parts or combinations thereof are not excluded in advance.

In the above, preferred embodiments and application examples of the present invention have been shown and described, but the present invention is not limited to the specific embodiments and application examples described above, and the present invention without departing from the gist of the present invention claimed in the claims. Various modifications can be made by a person having ordinary knowledge in the technical field to which this belongs, and these modifications should not be individually understood from the technical spirit or prospect of the present invention.

100: user terminal, 200: management server,
300: power management device.

Claims (3)

In the power management method using a power management device installed in the distribution panel for each household,
(a) The power management device, the management server receives the unique identifier information of the power management device included in the management request message received from the user terminal and the threshold current value for each distribution circuit in the leakage protection management for each distribution circuit from the management server Receiving;
(b) when the power management device matches the unique identifier information received from the management server with the unique identifier information of the power management device, the threshold current value for each distribution circuit preset in the power management device is determined. First updating and setting the threshold current value for each distribution circuit received from a management server;
(C) the power management device, measuring the current for each distribution circuit in the distribution panel;
(d) calculating, by the power management device, the power consumption for each distribution circuit based on the measured value of the current for each distribution circuit;
(e) the power management apparatus periodically transmitting power usage information for each distribution circuit in the distribution panel to the management server;
(f) the power management apparatus receiving, by the management server, a threshold current value for each distribution circuit determined based on power usage information for each distribution circuit from the management server; And
(g) The power management apparatus updates and sets the threshold current value for each distribution circuit set by the primary update to the threshold current value for each distribution circuit determined by the management server based on the power usage information for each distribution circuit, and is set by second updating Steps to
Power management method comprising a.
According to claim 1,
After step (d), before step (e),
The power management device, the power management method further comprising the step of determining whether the arc current for each distribution circuit is generated based on the measured value of the current for each distribution circuit.
A recording medium on which a program for executing the method in claim 1 or 2 is recorded.

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