KR102057494B1 - Smart electrical accident prevention and energy management system - Google Patents

Abstract

The present invention relates to an arc and leakage circuit breaker including: a power quality measurement module which includes a power basic measurement unit measuring voltage, current, power, and electric energy of a distribution board and a switchboard, a power quality measurement unit measuring power factor, frequency, active electric energy, reactive electric energy, harmonics, temperature by bus bar, and trip, and a monitoring functional unit monitoring for measurement items detected through a sensing unit, and providing an alarm feature thereof; a power communication module which provides a remote firmware update and upgrade features, performs a self-diagnosis feature based on monitoring and an alarm for the measurement items generated by the monitoring functional unit, and transfers data related to the self-diagnosis feature to a user terminal; an arc and leakage circuit breaker which includes a sensing unit detecting arc faults, overload, and leakage of the distribution board and the switchboard; and a control unit which controls the power quality measurement module, the power communication module, and the arc and leakage circuit breaker. Accordingly, it is possible to control arc that may occur in unspecified environment to prevent occurrence of electric fire, and also, power management of a building can be effectively performed by detecting consumption pattern of power and an abnormality signal or more with a power management apparatus and informing a user (for example, a building manager) of the abnormality signal or more with a smart phone.

Description

Smart electric accident prevention and energy management system {SMART ELECTRICAL ACCIDENT PREVENTION AND ENERGY MANAGEMENT SYSTEM}

The present invention relates to a smart electric accident prevention and energy management system including an arc double circuit breaker.

In general, the high-pressure panel, low-pressure panel, distribution panel, motor control panel should be prevented by detecting a fire sign in advance, because the electric fire may occur due to the lack of long-term maintenance. To this end, as the prior art, techniques such as Korean Patent Registration No. 10-0816984 (application date: February 26, 2007) have been proposed.

In order to prevent a fire, a sign must be detected in advance. In the conventional technology, a sign can be detected using a sensor, and various protection devices including a circuit breaker currently installed in order to respond to an electric fire accident occur when an overcurrent occurs. It has the function of breaking the circuit.

However, the related art has been developed due to overheating due to poor contact, disconnection, short circuit arcing and insulation breakdown due to degradation of insulation coating material in low voltage distribution system in a space where a large number of people live at night such as dormitories and hotels. There is a problem in that it is not easy to detect and prevent accidents.

Various embodiments of the present invention to solve the above problems, by controlling the arc that can occur in an unspecific environment to prevent the occurrence of electrical fires, by using a power manager to detect the power consumption and abnormal signals, etc. The purpose of the present invention is to provide a smart electric accident prevention and energy management system including an arc-leakage circuit breaker that can effectively manage power of a building by informing a user (eg, a building manager) of an abnormal signal to a smartphone.

In addition, embodiments of the present invention arc, overcurrent. When the power supply is cut off due to overvoltage, check the cause of the cutoff so that the user can be guided to the smartphone. In addition, the cause of the power distribution line power interruption caused by arcing, and the like is to provide a smart electrical accident prevention and energy management system that can automatically connect and restore the power of the interrupted distribution line again.

In addition, when reconnecting and restoring the power of a disconnected distribution line, additional leakage and distribution by connecting with other distribution line power supply in the safest form according to the distribution line power disconnect characteristic such as arc, overvoltage, overcurrent, temperature, deterioration, and condensation. The purpose is to provide a smart electrical accident prevention and energy management system that can control and prevent interruption.

Smart electric accident prevention and energy management system including an arc circuit breaker according to various embodiments of the present invention, the power basic measurement unit for measuring the voltage, current, power, and power of the distribution panel or switchboard, power factor, frequency, effective power amount And a power quality measuring unit for measuring reactive power, harmonics, busbar-specific temperatures, and strips, and a monitoring function for monitoring and alarming the measured items detected through the sensor unit. It provides a quality measurement module, a remote firmware update and upgrade function, performs a self-diagnostic function based on the monitoring and alarm for the measurement items generated by the monitoring function unit, and transmits data related to the self-diagnostic function. Detects arc faults, overloads, and short circuits in the power communication module, the distribution panel or the distribution panel. And an arc leakage circuit breaker including a sensor unit to control the power quality measuring module, the power communication module, and the arc leakage circuit breaker.

The system is configured to remotely check the power outage, electricity failure, temperature rise, electricity usage, and CCTV screen of the switchboard using a PC or a mobile phone on a cloud basis in real time, and provide a real-time detection and alarm function on the PC or the mobile phone. It is composed.

The sensor unit includes an arc sensor for detecting arc discharge of the switchboard or the switchboard, a temperature sensor for sensing a temperature of the switchboard or the switchboard, a deterioration sensor for detecting deterioration of the switchboard or the switchboard, and condensation of the switchboard or the switchboard. Condensation sensor for detecting a, and a vibration sensor for detecting the vibration of the distribution panel or the switchboard.

In accordance with various embodiments of the present disclosure, an electric fire may be prevented by controlling causes of an electric leakage blocking such as an arc that may occur in an unspecified environment, and a power manager may be used to control power consumption and abnormal signals. By detecting and informing the user (eg, building manager) of abnormal signals to the smartphone, the power management of the building can be effectively performed.

1 is a conceptual diagram of a smart electric accident prevention and energy management system according to various embodiments of the present invention.
2 is a schematic diagram of a smart electric accident prevention and energy management system according to an embodiment.
3 is a detailed block diagram of the smart electric accident prevention and energy management system shown in FIG.
4 is a block diagram illustrating a configuration of the sensor unit illustrated in FIG. 3.
FIG. 5 is a block diagram illustrating a block switching unit and a power distribution connection unit of FIG. 3.
FIG. 6 is a detailed block diagram of the control unit shown in FIG. 3.
FIG. 7 is a block diagram illustrating the control characteristics of the cutoff switching unit and the power distribution connection unit of the control unit illustrated in FIG. 6.

The above objects, features, and advantages will be described in detail with reference to the accompanying drawings, whereby those skilled in the art to which the present invention pertains may easily implement the technical idea of the present invention. In describing the present invention, when it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a conceptual diagram of a smart electric accident prevention and energy management system 10 according to various embodiments of the present invention.

Referring to FIG. 1, the smart electric accident prevention and energy management system 10 (or the earth leakage blocking system) according to various embodiments of the present disclosure may include real-time arc detection and arc blocking (within 1 second) and an electrical accident risk guide. , Power quality management, energy cost management, and automatic sending of emergency letters.

In addition, arc, overcurrent. When the power supply line of the power distribution line is cut off due to overvoltage, it checks the cause of the interruption and notifies the smartphone with an emergency text message, and automatically reconnects the power supply of the interrupted power distribution line depending on the power supply line such as the arc. It has a function to make. Since voltage abnormality such as arc occurs temporarily, if the cause of interruption of the distribution line is caused by a temporary phenomenon such as arc, it is possible to increase the manager's management efficiency by automatically connecting the power of the interrupted distribution line again.

In addition, when reconnecting the power of a disconnected power distribution line, it is electrically connected to the power of other power distribution lines in the most secure form according to the power distribution interruption characteristics such as arc, overvoltage, overcurrent, temperature, deterioration, and condensation. Blocking can be prevented.

In more detail, the smart electric accident prevention and energy management system 10 of the present invention may include the following functions.

(1) real-time notification of power failure and electricity failure

The system 10 of the present invention may provide a real-time detection and alarm function through a PC or a mobile phone for administrators, in which dormitories, gymnasiums, and major electrical facilities, where people mainly stay, are operating normally.

(2) CCTV interlock temperature measurement / alarm

The system 10 of the present invention may control a facility (eg, a switchboard or a distribution panel) in real time according to people's safety, main equipment, and abnormalities of facilities.

(3) PC / cellphone real time check (Cloud based)

The system 10 of the present invention can check the power failure, electricity failure, temperature rise, electricity usage CCTV screen in real time using a PC or a mobile phone (eg, a smartphone) even at a remote location.

(4) Automatic guidance of distribution cutoff and automatic connection of cut-off distribution power

The system 10 of the present invention checks the cause of the cut-off of a specific power distribution line, guides the smartphone to an emergency text message, etc. The power can be reconnected automatically.

(5) In case of automatic connection of power distribution line, select the power of other power distribution line safely

The system 10 of the present invention is the most secure form in consideration of the distribution interruption characteristics such as arc, overvoltage, overcurrent, temperature, deterioration, condensation, etc. By connecting, it is possible to prevent further leakage and distribution interruption.

2 is a schematic diagram of a smart electric accident prevention and energy management system 10 according to an embodiment. 3 is a detailed block diagram of the smart electric accident prevention and energy management system 10 shown in FIG.

2 and 3, the smart electric accident prevention and energy management system (or the short circuit breaker system) 10 according to an embodiment may include a power quality measurement module 100, a power communication module 200, and a distribution panel. It may include a dual-circuit earth leakage circuit breaker 300, and the control unit 400.

The rated current of the power quality measuring module 100, that is, the rated current measured by the power quality measuring module 100 may be 30/50/60/100 / 125A.

The power quality measurement module 100 may include a power basic measurement unit 110 that provides a power basic measurement function.

The power basic measurement unit 110 includes a current transformer, a voltage transformer, and an analog-to-digital converter. Accordingly, the power basic measuring unit 110 measures the voltage, current, power, and / or power amount of the power of the distribution line transformed and transformed through the substation facility in real time.

The power basic measuring unit 110 is installed for each of a plurality of substation lines branched from the energy management system (or the ground fault interruption system) 10 to measure voltage, current, power, and / or amount of power for each substation line. Can be.

The power quality measurement module 100 may include a power quality measurement unit 120 that provides a power quality measurement function. For example, the power quality measuring unit 120 monitors the voltage, current, power, and / or power amount of each sub-transformation line measured through the power basic measuring unit 110, and uses each preset power substation by using a preset program and calculation formula. Power factor, frequency, active power, reactive power, harmonics, busbar temperature, and / or trip to line power are detected. The power factor, frequency, effective power amount, reactive power amount, harmonics, and busbar temperature for each substation line sensing point, that is, the power factor, frequency, effective power amount, harmonics, and busbar temperature, are set in advance. Compare the set value, reference reactive power set value, stable harmonic range, and reference temperature range respectively. Then, the quality is measured for each detection item according to the comparison result. Depending on the frequency and the number of deviations from each reference range or reference value within a preset time period, the quality can be set by percentage and by preset steps (stable, normal, risk).

The power quality measurement module 100 may include a monitoring function unit 130 that provides a monitoring function. For example, the monitoring function unit 130 may provide monitoring for all the measurement items and alarms thereof. Here, all the measurement items include the detection items of each substation line, and the quality evaluation results of the detection items of each substation line are databased as a percentage and a predetermined evaluation step and provided as an alarm such as an information message. can do. In addition, the aforementioned 'all measurement items' may include at least some items detected from the sensor unit of FIGS. 3 and 4.

The maximum voltage of the power quality measurement module 100 may be set to, for example, 480V. However, in the present invention, the maximum voltage of the power quality measurement module 100 is not limited to the numerical value and may be variously changed or modified.

The maximum voltage of the power quality measurement module 100 can be miniaturized by providing a hall sensor.

The power communication module 200 may support multi-sensor interworking such as self power quality measurement sensing and external CT.

The power communication module 200 may be equipped with an embedded EMS (Energy Management System, Energy Management System) to provide a high-efficiency power management by real-time customized comprehensive energy management system.

The power communication module 200 may support remote firmware update and upgrade.

The power communication module 200 may provide a self-diagnostic function based on the monitoring of the measurement items generated by the monitoring function unit 130 of the power quality measurement module 100 and alarms thereof, and according to the self-diagnosis result. The screen can be displayed via LED or display. To this end, the power communication module 200 may include a self-diagnosis and notification display unit 210. The self-diagnosis and notification display unit 210 may provide a user interface through an LED or a display.

The power communication module 200 may transmit the self-diagnostic function, the self-diagnosis result, and in particular, data regarding the detection items for each substation line to the user terminal 20. Specifically, the power communication module 200 is notified of the detection items for each substation line, that is, the power factor, frequency, effective power amount, reactive power amount, harmonics, quality evaluation results for the temperature of each busbar and whether or not the disconnection display unit 210. It is displayed as and transmitted to the user terminal 20. Accordingly, the manager can evaluate the quality evaluation results for power factor, frequency, effective power amount, reactive power amount, harmonics, and busbar temperature in real time through the user terminal 20 or the notification display unit 210 in real time. You can check the display status. In addition, disconnection of each distribution line can be confirmed in real time.

As described above, the manager can check the quality evaluation results in real time for various items of power for each substation line. Therefore, when at least one substation line of each substation line is automatically cut off by the relay switch of the earth leakage breaker, the manager may refer to the result of power quality diagnosis of the interrupted substation line and the other substation lines, You can choose to reconnect or to make electrical connections for sharing power with other distribution lines. That is, by referring to the power evaluation result of each distribution line, it is possible to select another distribution line to share and reconnect with the interrupted distribution line. This will be described in more detail with reference to the accompanying drawings.

The user terminal 20 may be, for example, an electronic device such as a smartphone, a PC, or a tablet PC, and displays a screen related to a self-diagnostic function and a self-diagnosis result based on data provided from the power communication module 200. Can be displayed via LED or display. That is, the user terminal 20 may display the quality evaluation results of the above-mentioned 'all measurement items' in the form of a percentage or a step through a pre-installed application program screen.

The power communication module 200 may include a communication module 220 for providing a communication function. The communication module 220 may be configured to interwork with a cloud server and may support a virtual private network (VPN). The communication module 220 may support communication protocols such as, for example, Modbus, Ethernet, RS-485 / 232, and may be implemented to support various other known communication protocols.

In the power communication module 200, the minimum data transmission period may be set to 1 second. This minimum data transmission period may be changed later based on user input.

The arc circuit breaker circuit breaker 300 for a distribution panel includes a ground leakage blocking function, but may include at least one sensor unit 310 equipped with an arc detection function. For example, the sensor unit 310 may detect an arc defect, an overload, a short circuit, or the like with respect to a distribution panel or distribution lines connected to the distribution panel. The configuration of the sensor unit 310 will be described later in detail with reference to FIG. 4.

The arc double circuit breaker 300 for a distribution panel may include a test button 320 exposed through an outer housing, and may include, for example, an arc test button and an earth leakage test button. The test button 320 may be implemented in the form of a physical key or in a touch input method.

The arc circuit leakage circuit breaker 300 for a distribution panel may include a blocking cause display unit 330 displaying a cause of blocking through an alarm device, for example, an LED. Here, the cause of interruption may include, for example, arc, overcurrent, overvoltage, overload, and the like.

The arc double circuit breaker 300 for a distribution panel may include a blocking cause storage unit 340. The blocking cause storage unit 340 may be an internal memory provided inside the arc-leakage circuit breaker 340 for a distribution panel, and when a blocking occurs, the blocking cause storage unit 340 may provide a function of providing a blocking cause to a user later. Can be. Alternatively, the arc double circuit breaker 300 for a distribution panel may store and provide a cause of blocking based on a cloud server as well as an internal memory.

The application standard of the arc circuit breaker 300 for a distribution panel may correspond to K61009-1, and KS CIEC62606, and the rated current is 20A / 30A, and the rated sensitivity current may be 30mA. According to various embodiments, the application standard, rated current, and rated sensitivity current of the arc double circuit breaker 300 for a distribution panel may be variously changed in design.

The arc-leakage circuit breaker 300 for power distribution boards performs real-time generation of abnormal power such as arc, overvoltage, overcurrent, overload, and leakage for each distribution line through the power quality measurement module 100 and the sensor unit 310. And a cut-off switching unit 350 that detects and cuts off power of the power distribution line which is determined to have an abnormal power source.

In addition, the cutoff switching unit 350 may cut off power to at least one power distribution line according to the cutoff control signal of the controller 400.

Specifically, the control unit 400 receives in real time the voltage, current, power amount measurement values for each substation line measured through the power quality measurement module 100 and the sensor unit 310 and the like. In addition, measurement results such as power factor, frequency, effective power amount, reactive power amount, harmonics, and temperature for each busbar and power for each substation line are received in real time.

Accordingly, the controller 400 generates an abnormal power source such as an arc, an overvoltage, an overcurrent, an overload, or an electric leakage in at least one of the plurality of distribution lines according to the measurement result of the power quality measurement module 100 and the quality evaluation result. Can be determined or predicted. When the measurement result of the power quality measurement module 100 and the quality evaluation result are evaluated below a reference value or reach a dangerous level, the distribution line may predict that abnormal power such as arc, overvoltage, overcurrent, overload, and leakage will occur. Accordingly, when it is determined that abnormal power such as arc, overvoltage, overcurrent, overload, short circuit, or the like occurs in the at least one power distribution line or is predicted to be a dangerous step, the control unit 400 may generate an abnormal power supply or predict an abnormal power generation. The blocking control signal is supplied to the blocking switching unit 350 so that the blocking control signal can be blocked. Accordingly, the cutoff switching unit 350 may cut off power to at least one power distribution line according to the cutoff control signal of the controller 400.

When the control unit 400 confirms that at least one distribution line is blocked by the cutoff switching unit 350, the power communication module 200 may transmit the cutoff cause to the user terminal 20 as an emergency message. To control.

In addition, when it is confirmed that at least one distribution line is blocked by the cutoff switching unit 350, the controller 400 automatically connects the power of the cut-off distribution line again according to the blocking cause to relay the control signal. Generate and transmit to the arc double circuit breaker (300). As described above, if the cause of the interruption of the power distribution line is caused by a temporary phenomenon such as an arc, fast recovery is possible by automatically connecting the power of the interrupted power distribution line again. Here, when reconnecting the power of the blocked distribution line, the control unit 400 is electrically connected to the power of the other distribution line determined to be the safest according to the distribution blocking characteristics such as arc, overvoltage, overcurrent, temperature, deterioration, and condensation. Can be connected.

To this end, the arc double circuit breaker 300 includes a distribution connection unit 360 for electrically connecting the power of the power distribution line cut off according to the relay switching control signal of the control unit 400 with the power of other distribution lines. .

The distribution connection unit 360 of the arc combined circuit breaker 300 includes a plurality of relay switches configured to share a plurality of distribution lines of all distribution lines. Accordingly, the power distribution connection unit 360 turns on the relay switch connected to the power distribution line in which the power is cut off according to the relay switching control signal from the control unit 400, and the other power distribution line selected by the control unit 400 is switched off. It can be electrically connected to the line.

Detailed configurations and main technical features related to the power distribution connection unit 360 and the control unit 400 of the arc combined circuit breaker 300 will be described in more detail with reference to the accompanying drawings.

4 is a block diagram illustrating the configuration of the sensor unit 310 shown in FIG. 3.

Referring to FIG. 4, the sensor unit 310 may be configured to include a plurality of sensors to separately classify and monitor naturally occurring or irresistible accident risk factors that may occur in a distribution panel or a distribution panel. For example, the sensor unit 310 of the present invention is all or at least selected from the arc sensor 311, temperature sensor 312, degradation sensor 313, condensation sensor 314, and / or vibration sensor 315. May include some.

The arc sensor 311 sets and monitors the arc discharge as an accident event. Arc is a generic term for a discharge phenomenon that occurs in an insulator and continuously emits light along with burnout of an electrode. Since arc-type defects are mostly accompanied by a fire, when an event of arc generation occurs, the cutoff switching unit 350 is configured to operate to immediately cut off the current flow in the distribution line. The arc sensor 311 determines whether an arc occurs in an intermittent and atypical form of voltage and current using a hardware detection circuit.

The arc sensor 311 includes a plurality of sensor groups for detecting arc generation, and the plurality of sensor groups include an electromagnetic wave sensor for detecting electromagnetic waves generated by an arc, a photo sensor for detecting light of an arc discharge, and a discharge sound of an arc. Sound wave sensor for detecting the may be included. The plurality of sensor groups are configured to correspond to each distribution line in a one-to-one manner and detect whether an abnormal power source such as arc, overcurrent, overvoltage, and overload occurs for each distribution line. The detection result is shared with the control unit 400 in real time.

A plurality of temperature sensors 312 are configured to correspond one-to-one to each distribution line or each cutoff switch 350 together with an AD converter and a digital signal comparison circuit. Accordingly, the temperature sensor 312 detects whether a temperature range set for each distribution line is exceeded, for example, a set temperature range of 40 ° C., and detects a fire based on this. The detection result is shared with the control unit 400 in real time.

The deterioration sensor 313 may be configured together with a separate AD converter and a digital signal comparison circuit in addition to a sensor that detects deterioration of the switchboard. The deterioration sensor 313 is also configured to correspond to each distribution line or each cut-off switching unit 350 in a one-to-one manner, and detects whether or not degradation detected above a predetermined reference temperature for each distribution line. The detection result is shared with the control unit 400 in real time.

The dew condensation sensor 314 may include a humidity sensor for detecting an incident of dew condensation by sensing the humidity of the switchboard. The inspection guideline specifies that the switchboard should be selected at the installation site free of damage from water, moisture and condensation. According to the inspection guidelines of the KESCO Closed Switchboard, heaters and dehumidifiers are recommended to be installed in humid places. In case of safety control of switchboard, if the air temperature including moisture drops below dew point, condensation occurs when water condenses on the trunk or on the surface of switchboard. The condensation sensor 314 may determine that a problem such as condensation occurs when the humidity rises above a predetermined allowable value, and transmit the monitoring information to the controller 400 to start the dehumidifier or call the manager.

The vibration sensor (or seismic sensor) 315 may be a sensor for detecting an accident of physical damage by detecting vibration of the switchboard. The vibration sensor 315 may include a plurality of vibration sensors for detecting an accident of physical damage by detecting vibration of the switchboard. The vibration sensor 315 compares the measured values of the plurality of vibration sensors 315 to generate monitoring information by distinguishing the vibration caused by the earthquake that requires the manager's response from the vibration of the external factors other than the earthquake, and monitoring the vibration. The received information may be transmitted to the controller 400.

FIG. 5 is a block diagram illustrating a block switching unit and a power distribution connection unit of FIG. 3.

The cutoff switching unit 350 shown in FIG. 5 includes a plurality of relay switches 351 configured to correspond one-to-one to each distribution line L1 to L8.

The plurality of relay switches 351 may detect respective power distribution lines L1 to L8 according to detection results of abnormal power generation such as arc, overcurrent, overvoltage, and overload of the sensing unit 310, and a cutoff control signal of the controller 400. Block selectively

Specifically, each relay switch 351 is configured to correspond one-to-one to each distribution line (L1 to L8), each arc sensor 311 configured to correspond one-to-one to each distribution line (L1 to L8). The abnormal power generation signal detection results such as arc, overcurrent, overvoltage, and overload are received. For example. When the abnormal power generation detection signal is input from the arc sensor 311 connected to the first power distribution line L1 to the relay switch 351 connected to the first power distribution line L1, the relay switch connected to the first power distribution line L1. 351 immediately cuts off power of the first distribution line L1.

In addition, the relay connected to the first power distribution line L1 even when a blocking control signal for blocking the first power distribution line L1 is input from the controller 400 to the relay switch 351 connected to the first power distribution line L1. The switch 351 may immediately cut off power of the first distribution line L1.

The power distribution connection unit 360 shown in FIG. 5 has odd-numbered power distribution lines ((L1, L3) (L3, L5) of all of the power distribution lines L1 to L8 according to the relay switching control signal from the control unit 400. And a plurality of odd-numbered relay switches that electrically connect L5 and L7)), respectively. Also, a plurality of even numbers electrically connecting the even-numbered distribution lines (L2, L4), (L4, L6), (L6, L8) adjacent to each other among the total distribution lines L1 to L8 according to the relay switching control signal. It includes a relay switch.

At least one odd-numbered relay switch of the plurality of odd-numbered relay switches is turned on in response to a relay switching control signal from the control unit 400, so that the odd-numbered power distribution lines ((L1, L3) (L3) are disposed adjacent to each other. , L5) (L5, L7)) are selected to be electrically connected to each other.

Similarly, at least one of the even-numbered relay switches of the plurality of even-numbered relay switches is turned on in response to the relay switching control signal from the control unit 400, so that even-numbered power distribution lines (L2 and L4) disposed adjacent to each other are disposed. (L4, L6) (L6, L8) are selected to be electrically connected to each other.

The control unit 400 monitors, in real time, each relay switch 351 off operation configured in each of the power distribution lines L1 to L8, so that at least one relay switch 351 is turned off to at least one power distribution line L1 to L8. L8) Monitor in real time whether the power is off. When the power of at least one of the power distribution lines L1 to L8 is cut off, it is determined whether the power supply is a cause of interruption, and if it is a temporary cause, it is checked whether the power supply line of which power is cut off is an odd power line or an even power line.

If the power distribution line is disconnected from one of the odd-numbered power distribution lines L1, L3, L5, and L7, the relay switching control such that the power-distributed power distribution line is electrically connected to at least one other odd-numbered power distribution line. A signal is generated and fed to at least one odd-numbered relay switch. As a result, the odd-numbered power distribution line of which power is cut off may be controlled to be electrically connected to at least one odd-numbered power distribution line adjacent to each other.

On the other hand, if the power distribution line is disconnected from one of the even-numbered power distribution lines L2, L4, L6, and L8, the power-distribution line is electrically connected to at least one other even-numbered power distribution line adjacent thereto. The relay switching control signal is generated to be connected to the at least one even relay switch. In this case, the even-numbered power distribution line of which power is cut off may be controlled to be electrically connected to at least one even-numbered power distribution line adjacent to each other.

As such, the control unit 400 may reconnect the distribution line, which is cut off, in parallel with the power of another adjacent distribution line, depending on the cause of the temporary distribution line power supply interruption such as an arc. In this case, the odd-numbered power distribution line is automatically connected to another adjacent odd-numbered power distribution line, and the even-numbered power distribution line is automatically connected to another adjacent even-numbered power distribution line so as to be connected to each other in pairs. Arc, overvoltage and overload effects between the even and even distribution lines can be minimized.

FIG. 6 is a detailed block diagram of the control unit shown in FIG. 3.

Referring to FIG. 6, the controller 400 includes a power basic value checking unit 410, a power quality checking unit 420, a sensing information checking unit 430, an average count DB 440, and a blocking information checking unit 450. And a circuit breaker recovery support unit 480, a wire recovery control unit 460, a wire recovery support unit 470, and a notification display control unit 490.

In detail, the power basic value checking unit 410 of the controller 400 receives a voltage, a current, and a power amount of each substation line measured by the power basic measuring unit 110, and sets a predetermined reference voltage value and a reference current value. The number of arcs generated, the number of overvoltages, the number of overcurrents, and the number of overloads are monitored for each substation line, respectively, by comparing with the reference power and the reference power. The monitored result is shared with the average count DB 440.

The power quality checker 420 evaluates the quality of the power factor, frequency, active power, reactive power, harmonics, and busbar temperature for each substation line (L1 to L8) power calculated by the power quality measurement module 100. Monitor and store the estimated percentage information. The monitored result is shared with the average count DB 440.

The sensing information checking unit 430 detects an arc generation result for each substation line L1 to L8 detected by the sensor unit 310, a reference temperature abnormality detection result for each substation line, a deterioration detection result for each substation line, and each substation line. Receive and monitor condensation detection results and vibration detection results for each substation line. The monitored result is shared with the average count DB 440.

The average count DB 440 includes the number of arc occurrences for each substation line (L1 to L8), the number of overvoltage detections for each substation line, the number of overcurrent detections for each substation line, the number of overload detections for each substation line, and the reference temperature for each substation line. The number of abnormality detections, the number of deterioration detections for each substation line, the number of condensation detections for each substation line, and the number of vibration detections for each substation line, the power factor for each substation line, frequency, active power, reactive power, harmonics, busbar The quality evaluation results for the temperature are stored in a database.

The blocking information confirming unit 450 monitors, in real time, a plurality of relay switches 351 on-off operation configured in each of the distribution lines L1 to L8, and performs each distribution line according to the off operation of each relay switch 351. It is checked whether or not the power supply (L1 to L8) is cut off.

The wiring recovery control unit 460 is a quality evaluation result for the power factor, frequency, active power amount, reactive power amount, harmonics, and temperature for each busbar, or the number of arc occurrences for each substation line, and overvoltage for each substation line. Detection count, overcurrent detection count for each substation line, overload detection count for each substation line, reference temperature abnormality detection count for each substation line, deterioration detection count for each substation line, condensation detection count for each substation line, and per substation line According to the detection result or the evaluation result of at least one of the vibration detection times, another odd or even distribution line to be electrically connected to the distribution line which is cut off is selected.

In addition, the wiring recovery control unit 460 is a quality evaluation result for the power factor, frequency, effective power amount, reactive power amount, harmonics, and busbar temperature for the power supply for each substation line, or the number of arc occurrences for each substation line, each substation line. The number of times of overvoltage detection by each line, the number of times of overcurrent detection by each substation line, the number of overloads by each substation line, the number of detections of reference temperature abnormality by each substation line, the number of deterioration detection by each substation line, the number of dew condensation detection by each substation line, and each substation According to a manager's selection of at least one detection result or evaluation result of vibration detection per line, another odd or even power distribution line to be electrically connected to a power supply disconnected power distribution line may be selected.

The wiring recovery support unit 470 may supply the at least one power distribution line including the selected odd or even power distribution line according to a result of selecting another odd or even power distribution line to be electrically connected to the power supply disconnected power supply line. It generates and outputs a relay switching control signal for electrical connection with the interrupted distribution line. The relay switching control signal is selectively supplied to at least one odd-numbered or even-numbered relay switches configured in the distribution connection unit 360.

The notification display control unit 490 may allow a manager to select another odd or even power distribution line to be electrically connected to a power distribution line that is powered off. Quality evaluation results for frequency, active power, reactive power, harmonics, temperature by busbar, or the number of arc occurrences in each substation line, the number of overvoltage detections in each substation line, the number of overcurrents in each substation line, and the overload in each substation line The number of times of detection, reference temperature abnormality detection for each substation line, deterioration detection number for each substation line, condensation detection number for each substation line, and vibration detection number for each substation line are included in the power communication module 200 or the user terminal 20. To send.

The breaker recovery support unit 480 includes at least one relay switch 351 which cuts off power of the power distribution line when at least one power distribution line including the selected odd or even power distribution line is electrically connected to the power distribution line. By transmitting the unique number for the power communication module 200 or the user terminal 20 to support the administrator to restore the on-off operation for the at least one relay switch 351. Even if the distribution line of which power is cut off is automatically connected and restored by another distribution line, the administrator may separately restore the relay switch 351 by referring to the unique number of the relay switch 351 that is cut off.

FIG. 7 is a block diagram illustrating the control characteristics of the cutoff switching unit and the power distribution connection unit of the control unit illustrated in FIG. 6.

6 and 7, the controller 400 monitors, in real time, the turn-off operation of each relay switch 351 configured in each of the power distribution lines L1 to L8, and includes at least one relay switch 351. Is turned off to monitor in real time whether at least one power distribution line L1 to L8 is powered off. When at least one of the power distribution lines (L1 to L8) is cut off, after checking the cause of the cutoff, it is determined whether the power cut-off distribution line is an odd-numbered or even-numbered line.

If the power distribution line where the power is cut off is the power distribution line L1 which is one of odd-numbered power distribution lines L1, L3, L5, and L7, the wiring recovery control unit 460 of the control unit 400 performs power distribution with the power cut off. Quality evaluation results for power factor, frequency, active power amount, reactive power amount, harmonics, and temperature of busbars for the power supply of the odd-numbered power distribution lines L3, L5, and L7 except the line L1, or arcs for each substation line. Number of occurrences, overvoltage detection count for each substation line, overcurrent detection count for each substation line, overload detection count for each substation line, reference temperature abnormality detection count for each substation line, deterioration detection count for each substation line, and condensation for each substation line The detection and evaluation results of at least one of the number of detections and the number of vibration detections of each substation line are checked. Then, the other odd-numbered power distribution line L5 to be electrically connected to the odd-numbered power distribution line L1 disconnected from the power source is selected according to the at least one result selected from the checked detection and evaluation results.

The wiring recovery support unit 470 of the controller 400 electrically connects at least one power distribution line L3 and L5 including the selected odd power distribution line L5 to the odd power distribution line L1 from which power is cut off. Generates a relay switching control signal for connection. Here, the generated relay switching control signal is selectively supplied to at least one odd-numbered relay switches (ie, relay switches connected to L1, L3, and L5) configured in the power distribution connection unit 360. Accordingly, powers of the first, third, and fifth distribution lines may be connected in parallel. (Power connection of the arrow line A)

When selecting another odd-numbered power distribution line L5 to be electrically connected to the odd-numbered power distribution line L1 disconnected from the power source, at least one pre-selected one among the databased detection results of the average count DB 440 is selected. As a result, for example, the odd numbered substation line among the total substation lines may be selected (power connection of the B arrow line). As another example, a database-based detection result of the average count DB 440 may be selected. An odd-numbered substation line having the least number of abnormality detections, such as a reference temperature abnormality detection number, a degradation detection number, and a dew point detection number, may be selected. This is to allow power sharing, including the most secure odd-numbered substation lines.

On the other hand, if the power distribution line where the power is cut off is the power distribution line L6, which is one of the even power distribution lines L2, L4, L6, and L8, the other power line to be electrically connected to the even power distribution line L6 which is cut off. In selecting the even-numbered distribution line, at least one result selected in advance among the databased detection results of the average count DB 440, for example, power factor, frequency, active power amount, reactive power amount, harmonics, The even-numbered substation line L8 having the highest quality evaluation result for the busbar-specific temperature may be selected. Likewise, this is to allow power sharing, including the most secure odd-numbered substation lines.

The control unit 400 allows the manager to select another odd or even power distribution line to be electrically connected to the power supply disconnected power distribution line. Quality evaluation results for power factor, frequency, effective power amount, reactive power amount, harmonics, and temperature for each busbar, or arc generation number for each substation line, overvoltage detection number for each substation line, overcurrent detection number for each substation line, The number of overload detections for each substation line, reference temperature abnormality detection number for each substation line, deterioration detection number for each substation line, condensation detection number for each substation line, and vibration detection number for each substation line are included in the power communication module 200. It may transmit to the user terminal 20.

The manager is determined to have the highest stability among the detection results confirmed by the power communication module 200 or the user terminal 20, for example, power factor, frequency, effective power amount, reactive power amount, harmonics, booth of the entire substation line. The results of the quality assessment of the bar temperature can be checked to select the odd or even substation line with the highest rating.

Accordingly, the wire recovery support unit 470 of the controller 400 electrically connects at least one power distribution line L3 and L5 including the power distribution line L5 selected by the manager to the power distribution line L1 from which the power is cut off. It generates a relay switching control signal for. In addition, the relay switching control signal is selectively supplied to at least one odd-numbered relay switches (that is, relay switches connected to L1, L3, and L5) configured in the distribution connection unit 360, thereby providing first, third, and fifth distributions. The power of the lines can be connected in parallel.

As described above, the electric fire prevention system 10 configured as described above can protect and prevent the entire cause of electric fire, such as short circuit, accumulation, overheating, overcurrent, and arc, and each step of the electric fire generating mechanism. According to the detection of the abnormal signal can be effectively prevented. In addition, the electric fire prevention system 10 provides an abnormal signal to the user terminal in real time to monitor the user, there is an advantage that can be controlled quickly.

As described above, the smart electric accident prevention and energy management system 10 according to various embodiments of the present invention, by controlling the arc that can occur in an unspecified environment to prevent the occurrence of electric fire, power By using the manager to detect the power consumption form and abnormal signal, such as an abnormal signal to the user (for example, the manager of the building) to the smart phone can effectively manage the power of the building.

In addition, the system 10 of the present invention checks the cause of the interruption when the power supply is cut off, and guides the smartphone to an emergency text message or the like, and automatically cuts off the power supply that is cut off depending on the cause of the power supply interruption such as an arc. Can be connected. In addition, when reconnecting the power of a cut-off distribution line, additional leakage and distribution cut-off can be made by connecting the power of other distribution lines in the safest form according to the distribution cut-off characteristics such as arc, overvoltage, overcurrent, temperature, deterioration, and condensation. It can be prevented.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood that various modifications and variations of the invention can be made without departing from the spirit and technical features of the invention as set forth in the following claims. It can be obvious to those skilled in the art.

10: earth leakage blocking system
20: user terminal
100: power quality measurement module
200: power communication module
300: arc combined circuit breaker
400: control unit

Claims (5)

Power basic measurement unit for measuring the voltage, current, power, and power of the distribution panel or switchboard, power quality measurement unit for measuring the power factor, frequency, effective power amount, reactive power amount, harmonics, temperature by busbar, and trip, and A power quality measurement module including a monitoring function unit providing a monitoring function and an alarm function for the measurement items sensed through the sensor unit;
Providing a remote firmware update and upgrade function, performing a self-diagnostic function based on monitoring and alarming of the measurement items generated by the monitoring function unit, and transmitting data related to the self-diagnostic function to a user terminal Communication module;
An arc leakage circuit breaker including a sensor unit configured to detect an arc defect, an overload, and an electric leakage of the distribution panel or the distribution panel; And
A control unit controlling the power quality measuring module, the power communication module, and the arc leakage breaker;
Including,
The arc combined circuit breaker
The power quality measurement module and the sensor unit detects in real time whether at least one abnormal power is generated among arc, overvoltage, overcurrent, overload, and short circuit for each of the power distribution lines, and the power distribution line has been identified as having abnormal power. Cut off switching unit to cut off the power; And
And a distribution connection unit for electrically connecting the power of the power distribution line, which is cut off according to the relay switching control signal of the control unit, with the power of another distribution line,
The control unit
Determining or predicting whether or not the abnormal power source is generated in at least one of the plurality of distribution lines according to a measurement result of the power quality measurement module and a quality evaluation result;
Supplying a cutoff control signal to the cutoff switching unit so that the power of the power distribution line is generated or the abnormal power generation is expected to be cut off,
Smart electricity accident prevention and energy management system that checks the cause of the power-off of the power-distributed distribution line to generate the relay switching control signal for the temporary cause including the arc to automatically restore the power.
The method of claim 1,
Smart is configured to remotely check the power outage, electricity failure, temperature rise, electricity usage, and CCTV screen of the switchboard using a PC or mobile phone in the cloud, and provide the real-time detection and alarm function on the PC or the mobile phone Electric accident prevention and energy management system.
The method of claim 1,
The sensor unit
An arc sensor detecting an arc discharge of the distribution panel or the distribution panel;
A temperature sensor for sensing a temperature of the distribution panel or the distribution panel;
A deterioration sensor for detecting a deterioration of the distribution panel or the distribution panel;
A condensation sensor for detecting condensation of the distribution panel or the distribution panel; And
A vibration sensor for sensing vibration of the distribution panel or the distribution panel;
Including, smart electric accident prevention and energy management system.
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