KR20220037739A - Outage-management system of distribution line and method thereof - Google Patents

Abstract

Disclosed are a power distribution line power outage management system and a method thereof. According to an aspect of the present invention, the power distribution line power outage management system comprises: a power meter modem for supplying auxiliary power for a certain period of time when main power is off to detect an on/off state of a power meter installed in a consumer house so as to determine whether a power outage has occurred and generate a power outage signal or a power recovery signal according to a determination result; a data concentrating device for transmitting the power outage signal or the power recovery signal to a server when the power outage signal or the power recovery signal is received from the power meter modem; and a server for receiving the power outage signal or the power recovery signal from the power meter modem or the data concentrating device, managing modem power outage information in association with GIS information, and predicting a failure of a power distribution facility based on the modem power outage information.

Description

OUTAGE-MANAGEMENT SYSTEM OF DISTRIBUTION LINE AND METHOD THEREOF

The present invention relates to a distribution line power outage management system and method, and more particularly, by monitoring the power of a watt-hour meter or DCU to recognize a power outage/return, and securing power for transmission of a power outage signal through a super-capacitor It relates to a distribution line outage management system and method that can do this.

In general, Distributive on Automation System (DAS) means installing remote-monitored sensors and remote-operable automatic switchgear in various places in the distribution line to automate the distribution system for stable power supply, and install them in the central control room. It means a system that is remotely monitored and operated by a computer.

Power outage management of distribution lines is carried out by utilizing a distribution automation system (hereafter, DAS: Distribution Automation System). The distribution automation system utilizes computer and communication technology to remotely operate switchgear for distribution lines that are scattered over a long distance from the office without going to the site, and automatically finds faulty sections, and automatically collects line operation information such as voltage and current. is a system that

As shown in FIG. 1, the distribution automation system has a structure in which the substation 10 is connected in parallel to the central control device through, for example, a communication line, and the distribution line from the substation 10 is sequentially connected to the switchgear 20 in series. is done In addition, a switch controller for controlling and monitoring each switch 20 and a distribution control terminal for remotely monitoring and controlling the accident and distribution information of the distribution system by being respectively connected to the switch controller are installed, and the substation 10 ) is connected in parallel to a distribution control terminal, and a plurality of switchgear, switchgear controller, and distribution control terminal are connected to the substation in the same manner as in the substation 10 .

Since the introduction of the distribution automation system, there have been many achievements, such as reducing the blackout time per house from tens of minutes to less than 10 minutes. There are limits to single-phase high-voltage lines, low-voltage breakdowns in transformer units, and power outages by low-voltage customer units. am.

The background technology of the present invention is disclosed in Korean Patent Laid-Open No. 10-2017-0112465 (published in 20171012, Disaster monitoring apparatus and method in an intelligent remote meter reading system).

The present invention has been devised to improve the above-described problems, and an object of the present invention is to monitor the power of a watt-hour meter or DCU to recognize power failure/regeneration, and to provide power for power failure signal transmission through a super-capacitor. It is to provide a distribution line outage management system and method that can be secured.

Another object of the present invention is to provide a distribution line outage management system and method for managing modem outage information in association with GIS information and predicting a failure of a distribution facility based on modem outage information.

The problem to be solved by the present invention is not limited to the problem(s) mentioned above, and another problem(s) not mentioned will be clearly understood by those skilled in the art from the following description.

Distribution line power outage management system according to an aspect of the present invention, when the main power is turned off, auxiliary power is supplied for a certain period of time, detects the power on/off state from the watt-hour meter installed in the consumer, determines whether a power outage occurs, and the determination result is A power meter modem that generates a power outage signal or a power recovery signal according to the power meter modem, a data concentrator that transmits the power outage signal or a power recovery signal to a server when receiving a power outage signal or a power recovery signal from the power meter modem, a power outage signal from the power meter modem or the data concentrator or a server that receives a power outage signal, manages modem outage information in association with GIS information, and predicts a failure of a power distribution facility based on the modem outage information.

In the present invention, the watt-hour meter modem includes a communication unit for communication with the data concentrator or the server, a storage unit for storing meter reading data received from the watt-hour meter, a main power supply unit receiving power from the watt-hour meter, and the main power supply unit It is charged by the applied power, and detects the DC power supplied to the main power unit from the auxiliary power unit, the watt-hour meter, and the auxiliary power unit for supplying the charged power when the main power unit is out of power to detect the power on/off state of the main power unit, A power state detection unit that transmits the detected power on/off state to the control unit, and when the power off of the main power unit is detected, it is driven by the power of the auxiliary power unit to generate a power outage signal, and after the power outage signal is generated, power recovery In case of occurrence, the control unit may include a control unit that generates a power recovery signal when a power outage does not occur for a predetermined period of time.

In the present invention, the communication unit may include at least one of a first communication unit for wired communication with the data concentrator and a second communication unit for wireless communication with the server.

In the present invention, the auxiliary power unit may be a super capacitor.

In the present invention, the power outage signal may include at least one of customer information, a location where a current power outage occurred, and a time at which the power outage occurred.

In the present invention, the data concentrator includes a communication unit for communication with the watt-hour meter or the server, a storage unit for storing meter reading data received from the watt-hour meter, a main power supply unit for converting external AC into direct current and supplying it, and the main power supply unit It is charged by the power applied from the auxiliary power supply unit for supplying the charged power in the event of a power failure of the main power unit, and detects the DC power supplied to the main power unit to detect the power on/off state of the main power unit, and the A power state detection unit that transmits the detected power on/off state to the control unit, and when the power off of the main power unit is detected, it is driven by the power of the auxiliary power unit to generate a power outage signal, and a power outage occurs after the power outage signal is generated In case of no power outage for a predetermined period of time, the controller may include a control unit that generates a power recovery signal.

In the present invention, the auxiliary power unit may be a super capacitor.

In the present invention, the server includes a communication unit for communication with the watt-hour meter or the data concentrator, a database in which distribution-related facility information and customer information are stored, and when a power outage signal is received through the communication unit, modem outage information is linked with GIS information on a map It may include a modem outage management unit displayed in the , a failure prediction unit for predicting the cause of the failure by combining the modem outage information and the customer's facility information.

The present invention may further include a notification unit for notifying customers and operators of notification information including location information and time of occurrence of the power outage when the power outage signal is received.

A distribution line power outage management method according to an aspect of the present invention includes the steps of: detecting, by a modem, a direct current power supplied to a main power unit to detect a power on/off state of the main power unit; The modem is driven by the power of the auxiliary power supply to generate a power outage signal, and when power is restored after the power outage signal is generated, the modem determines whether power is maintained without power failure for a preset period of time, and and generating, by the modem, a power recovery signal when power recovery is maintained without power failure occurring for the predetermined period of time.

The present invention may further include the step of receiving, by the server, the blackout signal, and displaying modem outage information on a map in association with GIS information.

The present invention may further include the step of predicting, by the server, the cause of the failure by combining the modem outage information and the customer's facility information.

In addition to this, other methods for implementing the present invention, other systems, and computer programs for executing the methods may be further provided.

A distribution line power outage management system and method according to an embodiment of the present invention monitors the power of a watt-hour meter or DCU to recognize a power outage/return, and to secure power for transmission of a power outage signal through a super-capacitor. there is.

A distribution line outage management system and method according to another embodiment of the present invention manages modem outage information in connection with GIS information and predicts a failure of a distribution facility based on modem outage information, so that high-voltage branch line that cannot be detected by DAS Failure, high-voltage line disconnection failure, transformer failure, incoming line failure, and customer-level power outage can be managed to minimize power outage recovery time and power outage damage.

On the other hand, the effects of the present invention are not limited to the above-mentioned effects, and various effects may be included within the range obvious to those skilled in the art from the description below.

1 is a view for explaining a distribution automation system.
2 is a view for explaining a distribution line power outage management system according to an embodiment of the present invention.
3 is a block diagram schematically showing the configuration of a power meter modem according to an embodiment of the present invention.
4 is an exemplary view for explaining a method of generating a power recovery signal after a power outage according to an embodiment of the present invention.
5 is a block diagram schematically showing the configuration of an AMI server according to an embodiment of the present invention.
6 is an exemplary diagram showing modem outage information on a map according to an embodiment of the present invention.
7 is an exemplary diagram in which detailed power outage customers and power outage times are displayed on a map according to an embodiment of the present invention.
8 is a flowchart illustrating a modem power outage management method according to an embodiment of the present invention.

Hereinafter, a system and method for automatic line constant calculation of a transmission line according to an embodiment of the present invention will be described with reference to the accompanying drawings. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.

Further, implementations described herein may be implemented as, for example, a method or process, an apparatus, a software program, a data stream, or a signal. Although discussed only in the context of a single form of implementation (eg, discussed only as a method), implementations of the discussed features may also be implemented in other forms (eg, as an apparatus or program). The apparatus may be implemented in suitable hardware, software and firmware, and the like. A method may be implemented in an apparatus such as, for example, a processor, which generally refers to a computer, a microprocessor, a processing device, including an integrated circuit or programmable logic device, or the like. Processors also include communication devices such as computers, cell phones, portable/personal digital assistants (“PDA”) and other devices that facilitate communication of information between end-users.

In addition, the terms used herein are used only to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof. Terms such as first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings. decide to do

2 is a view for explaining a distribution line power outage management system according to an embodiment of the present invention.

2, the distribution line power outage management system according to an embodiment of the present invention includes a watt-hour meter 100 for generating meter reading data, a watt-hour meter modem 200 for communicating with the watt-hour meter 100 and receiving the meter reading data; AMI (Advanced Metering Infrastructure) server 400 that communicates with the watt-hour meter modem 200 to collect meter reading data and communicates with the data concentrator 300 to receive and manage meter reading data may include

The watt-hour meter 100 is installed in the consumer and detects the amount of power consumed by the consumer. That is, the watt-hour meter 100 receives AC power from the power line and performs an automatic meter reading function. At this time, the watt-hour meter 100 converts AC power input from the power line into DC power to supply DC power required for driving the communication modem.

The power supply modem supplies the power stored in the auxiliary power supply unit 240 as internal driving power even if the power supply is cut off due to a power outage during operation. However, in a non-blackout state, external power (eg, AC power) is converted to a voltage level corresponding to the driving power and used.

The watt-hour meter modem 200 is supplied with auxiliary power for a certain period of time when the main power is turned off, detects the on-off state of the power from the watt-hour meter 100 installed in the consumer to determine whether a power outage has occurred, and depending on the determination result, a power outage signal or power recovery generate a signal. That is, the watt-hour meter modem 200 detects whether power is supplied from the watt-hour meter 100 , determines whether a power outage has occurred, and generates a power outage signal or a power recovery signal according to the determination result. The watt-hour meter modem 200 is a device that detects a power failure and performs a communication function. When power is not supplied from the watt-hour meter 100 for more than a certain period of time due to the interruption of power supply through the power line, it is driven using auxiliary power and is powered off. (ie, a power outage state) and transmits a power outage signal to the data concentrator 300 or the AMI server 400 . Here, the blackout signal may include a location where the current power outage occurred and a time at which the power outage occurred.

In addition, the power meter modem 200 has power failure/recovery detection time, periodic report, low voltage level setting, power failure detection transmission count, remote/region setting function of pole number and customer number in the built-in storage unit 220, When a power outage occurs, this set information is transmitted to the data concentrator 300 or the AMI server 400 together with the power outage information so that the operator can conveniently and quickly find the location of the power outage based on the distribution GIS. In this way, the watt-hour meter modem 200 performing the power outage detection function embeds information such as pole number and customer number, and transmits this information together to the AMI server 400 when a power outage occurs. By making it easy to determine the location, it is possible to expedite the response to a power outage accident, and there is an effect that the operator can easily recover.

The Data Concentration Unit (DCU, 300) transmits a meter reading data request signal to the electricity meter modem 200, collects meter reading data from the electricity meter modem 200, and transfers the collected meter reading data to the AMI server 400. send. In this case, the data concentrator 300 may include a DCU modem 350 to transmit and receive data to and from a plurality of watt-hour meter modems 200 . The data concentrator 300 transmits and receives data through a communication method such as a watt-hour meter modem 200 and a high-speed PLC (Power Line Communication).

The data concentrator 300 may receive a power outage signal or a power recovery signal from the power meter modem 200 , and transmit the power outage signal or a power recovery signal to the AMI server 400 .

The AMI server 400 receives a power outage signal or a power recovery signal from the power meter modem 200 or the data concentrator 300, manages the modem outage information in connection with GIS information, and a failure of the power distribution facility based on the modem outage information can be predicted.

3 is a block diagram schematically showing the configuration of a power meter modem 200 according to an embodiment of the present invention, and FIG. 4 is an example for explaining a method of generating a power recovery signal after a power outage according to an embodiment of the present invention It is also

Referring to FIG. 3 , the power meter modem 200 according to an embodiment of the present invention includes a communication unit 210 , a storage unit 220 , a main power unit 230 , an auxiliary power unit 240 , and a power state detection unit 250 . and a control unit 260 .

The communication unit 210 may communicate with the data concentrator 300 or the AMI server 400 .

The AMI communication configuration may include a DCU method and a wireless communication network (mobile communication network) method. The wireless communication network method is a method of transmitting the electricity meter modem 200 to the AMI server 400 through the network of the telecommunication company, and the DCU method is the AMI server 400 through the network of the telecommunication company after collecting the metering information of several units of electricity in the DCU first. ) may be a method of transmission.

Accordingly, in the case of the wireless communication network method, the communication unit 210 may perform a role of transmitting and receiving data through the AMI server 400 and the wireless communication network. In addition, in the case of the DCU method, the communication unit 210 may serve to transmit and receive data through the data concentrator 300 and the PLC.

The communication unit 210, under the control of the control unit 260, when a power outage is detected, a power recovery is detected, or the power consumption exceeds a preset (or usual) usage by more than a specified margin, the corresponding state information Pre-designated users and related organizations may be notified. In this case, the relevant organization may include the AMI server 400, and in addition to that, a user (ie, a customer), a power supply organization (eg, KEPCO), a social worker, an electricity/safety officer, and a police station may be included.

The storage 220 may store the meter reading data received from the watt-hour meter 100 . Also, the storage unit 220 may store a telephone number and a customer number. In addition, when a power outage is detected, a power failure is detected, or the power usage exceeds a preset (or usual) usage by more than a specified margin, the storage unit 220 includes user and related organization information for notifying the corresponding state information. (eg Contacts) can be saved.

The main power unit 230 may receive power from the watt-hour meter 100 . The main power unit 230 receives power for driving the watt-hour meter modem 200 from the watt-hour meter 100 . At this time, the main power unit 230 may change the voltage of the DC power through the DC-DC converter and supply it to each component of the watt-hour meter modem 200 . The main power unit 230 converts power supplied from the outside (eg, AC power) into DC power suitable for driving power and supplies it to the inside.

The auxiliary power unit 240 may charge the supercapacitor using power converted from the main power unit 230 and supplied, and may supply driving power to internal components of the modem including the control unit 260 in a power failure state. The auxiliary power unit 240 may include a super capacitor or a battery.

The power state detection unit 250 may detect DC power supplied from the watt-hour meter 100 to the main power unit 230 to detect a power on/off state of the watt-hour meter 100 . The power state detection unit 250 may transmit the detected power on/off state to the control unit 260 . That is, the power state detection unit 250 may detect whether current is supplied from the main power unit 230 , and when the power supply is cut off, detect this and transmit a blackout occurrence signal to the control unit 260 .

The control unit 260 may process a signal detected according to the power on/off state received from the power state detection unit 250 and manage main functions related to the power failure detection. The control unit 260 may simultaneously perform a communication function of receiving the on/off signal of the power and transmitting it to the data concentrator 300 or the AMI server 400 . At this time, the control unit 260 manages the electricity meter 100 with the customer number, and manages the distribution pole with the electric pole number. To this end, the watt-hour meter modem 200 may include a storage unit 220 that stores a setting value including each customer number and pole number.

The control unit 260 stores the meter reading data transmitted from the watt-hour meter 100 in the storage unit 220, and when receiving a blackout occurrence signal from the power failure detection unit 250, the power of the auxiliary power unit 240 is supplied to the remaining components. can As such, when a power outage occurs, the power meter modem 200 according to the present invention supplies the charging power of the auxiliary power supply unit 240 to each element therein, and then normally stops the operation of each element. Accordingly, it is possible to prevent damage to the device due to sudden power failure or loss of stored data.

The control unit 260 detects whether the external power is re-supplied (ie, restored) while being driven by the power supplied from the auxiliary power unit 240 after the external power is turned off. When power failure is detected, the control unit 260 may notify a predetermined user and related organizations of the corresponding state information through the communication unit 210 .

The control unit 260 generates a power outage signal by driving by the power of the auxiliary power unit 240 when the power off of the main power unit 230 is detected. In this case, the recovery signal may be transmitted to the data concentrator 300 or the AMI server 400 through the communication unit 210 .

Meanwhile, the distribution line operates a reclosing circuit breaker to shorten the blackout time. Through the reclosing operation, more than 80% of the failures are automatically recovered through the reclosing operation for simple failures such as contact with foreign objects. The circuit breaker mechanism performs reclosing up to 3 times based on the leaker, and when the power outage occurs after 3 times of operation, the watt-hour meter modem 200 should generate a signal for 4 power outages and 3 times for power back.

The Super Capacitor used for the auxiliary power unit 240 has a simpler and cheaper structure than a battery, but the power supply time is short during a power outage. Transmission may be missed. Accordingly, when the power failure occurs after the power failure signal is generated, the controller 260 may generate a power recovery signal when the power failure does not occur for a predetermined period of time.

A method of generating a power recovery signal after a power failure occurs will be described with reference to FIG. 4 . As shown in ② of FIG. 4, when the power supplied from the watt-hour meter 100 to the watt-hour meter modem 200 for the first time is out of power, the control unit 260 may generate a power outage signal, and if a power recovery signal does not occur, it is reclosed. Therefore, even if there is a power outage as in ④ and ⑥, the power failure signal may not be transmitted. Also, when the power supplied from the watt-hour meter 100 to the watt-hour meter modem 200 is not blacked out for several seconds to several minutes after the power is restored, the controller 260 may transmit a power recovery signal.

As described above, after the first power failure signal occurred in ②, a power failure occurred in ③, but the power failure signal was not generated because it could not maintain several seconds to several minutes, and the power recovery signal was not generated, so additional power failures in ④ and ⑥ Even when this occurs, the watt-hour meter modem 200 does not separately transmit the power outage signal, so that it is possible to prevent the consumption of power to charge the capacitor and omission of the power outage signal due to the provision of unnecessary power outage information.

The control unit 260 is a component that controls the operation of various components of the power meter modem 200, and may include at least one arithmetic unit, wherein the arithmetic unit is a general-purpose central processing unit (CPU), for a specific purpose. It may be a suitably implemented programmable device element (CPLD, FPGA), an application specific integrated circuit (ASIC), or a microcontroller chip.

On the other hand, in this embodiment, only the power meter modem 200 has been described, but the DCU modem 350 may also include an auxiliary power unit 240 as in the power meter modem 200. A power recovery signal can be transmitted only when a power outage has not occurred for a set period of time.

5 is a block diagram schematically showing the configuration of an AMI server according to an embodiment of the present invention, FIG. 6 is an exemplary view showing modem outage information on a map according to an embodiment of the present invention, and FIG. 7 is a diagram of the present invention It is an exemplary diagram showing detailed power outage customers and power outage time on a map according to an embodiment.

Referring to FIG. 5 , the AMI server 400 according to an embodiment of the present invention includes a communication unit 410 , a database 420 , a modem outage management unit 430 , a failure prediction unit 440 , and a notification unit 450 . and a control unit 460 .

The communication unit 410 may communicate with the watt-hour meter or the data concentrator 300 .

The database 420 may store distribution line facility information and customer information.

When a power outage signal is received through the communication unit 410 , the modem outage management unit 430 may display modem outage information on a map in association with GIS information.

The modem outage management unit 430 may link the modem outage information with the GIS, identify substation failures, distribution line failures, and customer unit power outages to express the location of the blackout location on the map and check detailed power outage details. For example, as shown in FIG. 6 , the modem power outage management unit 430 may identify the number of power outage lakes in the management district (500M × 500M) and provide power outage information in color on the map. If the user wants to know the details of the power failure, the user can click the colored square. Then, the modem outage management unit 430 may display the detailed power outage customer and the power outage time as shown in FIG. 7 .

The modem power outage management unit 430 may manage power outage information in units of customers. In other words, there are customers who are particularly sensitive to power outages when managing a large number of customers. For example, customers who use life support devices or customers who are expected to suffer damage from power outages such as sushi restaurants and fish farms. Current distribution automation systems are effective in detecting power outages over a certain scale, but there is a limit to providing customized services to these customers. Therefore, if the modem blackout signal is used, it is possible to determine the presence or absence of a power outage of the customer in real time, and by linking this with the SMS server 400, it is possible to inform the customer and the power company in real time to promptly recover the power outage and minimize the power outage damage. there is.

The failure prediction unit 440 may predict the cause of the failure by combining the modem outage information and the customer's facility information.

Facility information and customer information may be linked as shown in Table 1 below.

The failure prediction unit 440 may predict a failure as shown in Table 2 below by combining facilities for each customer outage while constantly monitoring the status of modem outage information.

Referring to Table 2, as in Case 1, when a power failure occurs only in some of the transformers in several locations, the failure prediction unit 440 may estimate that the high-voltage line is disconnected. Also, as in Case 5, when a power outage occurs for only some customers among all customers of the transformer, the failure prediction unit 440 may determine that only one of the three transformers is defective.

When the power outage signal is received, the notification unit 450 may notify the customer and the operator of notification information including location information and the time of occurrence of the power outage. In this case, the notification unit 450 may notify the power outage occurrence information using a text message or the like.

Meanwhile, the modem power failure management unit 430 , the failure prediction unit 440 , and the notification unit 450 may be implemented by a processor or the like required to execute a program on the computing device, respectively. As such, the modem power outage management unit 430, the failure prediction unit 440, and the notification unit 450 may be implemented by physically independent components, or may be implemented in a functionally separate form within one processor. .

The control unit 460 includes various components of the AMI server 400 including the communication unit 410 , the database 420 , the modem power failure management unit 430 , the failure prediction unit 440 , the notification unit 450 and the control unit 460 . As a configuration for controlling the operation of the units, it may include at least one arithmetic unit, wherein the arithmetic unit is a general-purpose central processing unit (CPU), a programmable device device (CPLD, FPGA) implemented to suit a specific purpose, It can be an application specific integrated circuit (ASIC) or a microcontroller chip.

8 is a flowchart illustrating a method for managing a power outage of a modem according to an embodiment of the present invention.

Referring to FIG. 8 , the power state detection unit 250 detects the power supply state of the main power supply unit 230 ( S810 ), and determines whether the power supply is off (power outage) state ( S820 ). That is, the power state detection unit 250 may sense the DC power supplied from the watt-hour meter 100 to the main power unit 230 to detect the power on/off state of the watt-hour meter 100 .

If it is determined in step S820 that the power supply is off, the control unit 260 transmits a power failure signal to the data concentrator 300 or the AMI server 400 (S830).

When step S830 is performed, the control unit 260 determines whether a power recovery has occurred (S840). That is, when a power failure is detected, the control unit 260 may detect whether external power is re-supplied (ie, restored) while being driven by power supplied from the auxiliary power unit 240 . In this case, the control unit 260 may generate a power outage signal during the first power outage, and when no power recovery signal is generated, the control unit 260 may not transmit the power outage signal even if a power outage occurs due to reclosing. Also, when the power is not blacked out for several seconds to several minutes after the power is restored, the controller 260 may transmit a power recovery signal.

When the power recovery occurs as a result of the determination in step S840, the control unit 260 determines whether a power outage has not occurred for a predetermined period of time (S850). After the power outage signal is generated, power recovery occurs, but if the power recovery does not maintain a predetermined period of time (several seconds to several minutes), the controller 260 may not generate the power recovery signal. As such, if power recovery is not maintained for a certain period of time, no power recovery signal is generated, so even if an additional power outage occurs, the watt-hour meter modem 200 does not transmit a power outage signal separately, thereby reducing the consumption of power to charge the capacitor and omission of the power outage signal due to the provision of unnecessary power outage information. It can be prevented.

As a result of the determination in step S850, if the power outage does not occur for a certain period of time, the control unit 260 transmits a power recovery signal (S860).

As described above, the power outage management system and method for a distribution line according to an embodiment of the present invention monitors the power of the watt-hour meter 100 or the DCU to recognize power failure/regeneration, and transmits a power outage signal through a super-capacitor. It is possible to secure power for

A distribution line outage management system and method according to another embodiment of the present invention manages modem outage information in connection with GIS information and predicts a failure of a distribution facility based on modem outage information, so that high-voltage branch line that cannot be detected by DAS Failure, high-voltage line disconnection failure, transformer failure, incoming line failure, and customer-level power outage can be managed to minimize power outage recovery time and power outage damage.

Although the present invention has been described with reference to the embodiment shown in the drawings, this is merely an example, and those skilled in the art to which various modifications and equivalent other embodiments are possible. will understand Accordingly, the true technical protection scope of the present invention should be defined by the following claims.

100: watt-hour meter
200: power meter modem
210, 410: communication department
220: storage
230: main power unit
240: auxiliary power unit
250: power state detection unit
260, 460: control unit
300: data concentrator
350: DSU modem
400 : AMI server
420: database
430: modem power failure management unit
440: failure prediction unit
450: notification unit

Claims (12)

A watt-hour meter modem that is supplied with auxiliary power for a certain period of time when the main power is turned off, detects the on-off state of the power from the watt-hour meter installed in the consumer, determines whether a power outage has occurred, and generates a power outage signal or a power recovery signal according to the determination result;
a data concentrator for transmitting the power outage signal or the power recovery signal to a server when the power outage signal or the power recovery signal is received from the power meter modem; and
A server that receives a power outage signal or a power recovery signal from the power meter modem or the data concentrator, manages modem outage information in connection with GIS information, and predicts a failure of a power distribution facility based on the modem outage information
Distribution line power outage management system comprising a.
According to claim 1,
The power meter modem,
a communication unit for communication with the data concentrator or the server;
a storage unit for storing the meter reading data received from the watt-hour meter;
a main power supply receiving power from the watt-hour meter;
an auxiliary power supply unit charged by the power applied from the main power unit and supplying the charged power when the main power unit is out of power;
a power state detection unit that detects DC power supplied from the watt-hour meter to the main power unit, detects a power on/off state of the main power unit, and transmits the detected power on/off state to a control unit; and
When power off of the main power unit is detected, it is driven by the power of the auxiliary power unit to generate a power failure signal, and when power is restored after the power outage signal is generated, a control unit that generates a power recovery signal if power failure does not occur for a preset period of time Distribution line power outage management system comprising a.
3. The method of claim 2,
The communication unit,
and at least one of a first communication unit for wired communication with the data concentrator and a second communication unit for wireless communication with the server.
3. The method of claim 2,
The auxiliary power unit,
Distribution line power outage management system, characterized in that it is a supercapacitor.
3. The method of claim 2,
The blackout signal is
Distribution line power outage management system, characterized in that it includes at least one of customer information, a location where the current power outage occurred, and a time when the power outage occurred.
According to claim 1,
The data concentrator is
a communication unit for communication with the watt-hour meter or the server;
a storage unit for storing the meter reading data received from the watt-hour meter;
a main power supply unit that converts external AC into DC and supplies;
an auxiliary power supply unit charged by the power applied from the main power unit and supplying the charged power when the main power unit is out of power;
a power state detection unit for detecting a DC power supplied to the main power unit, detecting a power on/off state of the main power unit, and transmitting the detected power on/off state to a control unit; and
When power off of the main power unit is detected, it is driven by the power of the auxiliary power unit to generate a power failure signal, and when power is restored after the power outage signal is generated, a control unit that generates a power recovery signal if power failure does not occur for a preset period of time Distribution line power outage management system comprising a.
7. The method of claim 6,
The auxiliary power unit,
Distribution line power outage management system, characterized in that it is a supercapacitor.
According to claim 1,
The server is
a communication unit for communicating with the watt-hour meter or the data concentrator;
a database in which distribution-related facility information and customer information are stored;
a modem outage management unit for displaying modem outage information on a map in connection with GIS information when receiving a power outage signal through the communication unit; and
and a failure prediction unit for predicting the cause of failure by combining the modem outage information and the customer's facility information.
9. The method of claim 8,
When the power outage signal is received, the distribution line power outage management system further comprising a notification unit for notifying the customer and the operator of notification information including the location information and the time of occurrence of the power outage.
detecting, by a modem, direct current power supplied to the main power supply unit, a power on/off state of the main power unit;
generating a power outage signal by driving the modem by the power of the auxiliary power supply when power off of the main power supply is detected;
determining, by the modem, whether power recovery is maintained without power failure occurring for a predetermined period of time when power is restored after the power outage signal is generated; and
generating a power recovery signal by the modem if power recovery is maintained without power outage for the predetermined period of time
A distribution line outage management method comprising a.
11. The method of claim 10,
The server receiving the outage signal, and displaying the modem outage information on a map in association with GIS information.
12. The method of claim 11,
Power distribution line outage management method, characterized in that the server further comprises the step of predicting the cause of the failure by combining the modem outage information and the customer's facility information.

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