KR20130127819A - Smart monitoring device for power line - Google Patents

Abstract

A smart monitoring device for a power distribution line is disclosed. The smart monitoring device monitoring an outside temperature, a track temperature, a track current, a voltage, a slope, and a conducting state as the main condition information of a power distribution line and wirelessly transmitting the information to a remote management system is installed on the power distribution line. The power supply to the smart monitoring device is performed in a manner of inducing necessary power from the power distribution line. The smart monitoring devices installed on the power distribution line are connected to a wireless network in a mesh structure. Therefore, the smart monitoring device not only measures the voltage and current of an existing power distribution intelligent device, but also monitors overheating of the power distribution line, disconnection accidents due to deflection of the track and prevents shock accidents by showing conduction. The smart monitoring device facilitates the selection of an installation space, the installation, and the maintenance without a separate power cable and prevents monitoring degradation due to the transmission errors of the monitored information because the main condition information of the power distribution line is capable of being transmitted to the adjacent smart monitoring device even in the event of a communication failure with the remote management system.

Description

Smart monitoring device for power distribution line

The present invention relates to a smart monitoring device for a distribution line, and more specifically, to install a smart monitoring device directly on the distribution line, so that the smart monitoring devices installed in the distribution line is connected to the wireless network of the mesh (MESH) structure In addition, it transmits the main status information of the distribution line (e.g., outside temperature, line temperature, line current, voltage, slope, energization state, etc.) to the remote management system, and even if a communication failure with the remote management system occurs, The present invention relates to a smart monitoring device for a distribution line that enables relay transmission of important status information of a distribution line to a monitoring device and prevents the monitoring function from being degraded due to transmission error of the monitoring information.

In general, a distribution line is a facility that distributes power supplied from a distribution line, which is a power facility for supplying electric power generated at a power plant to subregions through a substation, to supply a general home.

Compared to the transmission line, these distribution lines have shorter positives per line, various types of voltages, and low voltage classes, resulting in large load currents, high voltage drops and power losses, and unique characteristics vary from time to time depending on the characteristics of the load side. The management on the supplier side is very difficult, the variety of equipment is low, the supply reliability is low, and the power distribution equipment is the closest to the building and the human being.

In other words, power distribution facilities must be constantly changed at the same time as urban structure changes and new demand increases due to the development of urban functions. This is because the distribution facilities and loads are widely distributed, and the specifications, types, and quantities vary widely. Because it is very difficult to maintain.

In addition, electrical equipment is not evenly distributed on the basis of distribution lines, and load fluctuations are local and temporally severe. Therefore, proper maintenance of system load is very difficult, and a lot of maintenance personnel are required for maintenance of a wide range of equipment.

That is, accidents caused by breakdown of distribution lines and natural disasters are directly involved in the interruption of power supply for a long time and have a significant social impact. Accordingly, the distribution lines are installed directly on the distribution lines to monitor the operation state of the distribution lines. Research on a system for monitoring the condition of the system is required.

However, the conventional method of monitoring and diagnosing a distribution line is a method in which a site maintainer regularly visits the distribution line and monitors and diagnoses using a local detector (wind speed and camera) installed in the distribution pole or distribution tower. This is a problem that the maintenance cost to monitor and diagnose the distribution line is increased by visiting the site directly or monitoring the operation state of the distribution line by using a local detector rather than monitoring the distribution line remotely. .

In addition, the monitoring method as described above may not be remotely monitored in real time from a remote distribution line, and thus may be found by a worker after a certain period of time in case of failure or abnormality in the distribution line. In this case, there was no problem that the maintenance and repair of the distribution line having a failure or abnormality could not be performed immediately.

Accordingly, in the related art, all information on the distribution system as well as the load of the customer is collected online and systemized for remote operation so that system reliability is improved and power failure time is shortened and the loss is minimized through quick failure location expression. In order to improve the utilization rate, advance the electric quality through line quality diagnosis, and efficiently manage the electricity demand, the power distribution system is being actively promoted.

In the case of the power distribution system, the power distribution equipment of the KDN KDN's wireless load monitoring system "Power Keeper" and intelligent terminal equipment "PRTU (Feeder Remote Terminal Unit)" are representative power distribution equipment.

The power protector is a system for measuring the three-phase voltage and current of the low voltage side distribution line and transmits it remotely via CDMA (Code-Division Multiple Access) and RF (Radio Frequency) radio.

The FRTU is a system for measuring the three-phase voltage and current of the high-voltage distribution line, monitoring the state of the relay and remote control by DNP (Distributed Network Protocol) 3.0 wired communication.

However, the above-mentioned battery facilitating apparatus does not have functions such as accident monitoring due to overheating of the distribution line, prevention of disconnection due to sag of the line, and prevention of electric shock accident through energization indication.

In addition, it is difficult to select the installation site due to the large size of the battery facilitating device, the installation and maintenance of the power supply cable is difficult, and it is difficult to apply to a wide distribution line as an expensive product.

Accordingly, the present invention is to improve the conventional problems as described above, and after monitoring the outside temperature, the line temperature, the line current, the voltage, the slope, the conduction state, etc., which are the main status information of the distribution line and wirelessly to the remote management system By installing and configuring the smart monitoring device on the distribution line, it is possible to implement not only the voltage and current measurement function of the conventional power distribution equipment, but also the overheat monitoring of the distribution line, the monitoring of disconnection due to the line sag, and the prevention of electric shock through the display of electricity. The purpose of the present invention is to provide a smart monitoring device for a distribution line so that the selection of the installation site can be easily performed.

In addition, the present invention is configured so that the power supply of the smart monitoring device installed in the distribution line is made in a way to induce the required power from the distribution line, so that a separate power cable is not necessary, so that the installation and maintenance is easy to achieve another object. Is there.

In addition, the present invention is configured so that the smart monitoring devices installed in the distribution line is connected to the wireless network of the mesh (MESH) structure, even if a communication failure with the remote management system occurs, the main status information of the distribution line to the neighboring smart monitoring device Another purpose is to enable relay transmission to prevent degradation of the monitoring function due to transmission error of monitoring information.

Smart monitoring device for a distribution line of the present invention for achieving the above object, the monitoring body is installed in the distribution line; A line monitoring unit configured in the monitoring main body and configured to monitor main state information of a distribution line; An energization display unit configured in the monitoring main body and configured to display an energization state of a distribution line; A first communication unit configured in the monitoring main body and configured to establish a network of neighboring smart monitoring devices and a mesh structure so as to wirelessly relay monitoring information of the line monitoring unit to a neighboring smart monitoring device; A second communication unit which collects monitoring information wirelessly relayed from the first communication unit and wirelessly transmits it to a remote management system; And an autonomous power supply unit for discharging electric power from the distribution line and supplying driving power to the line monitoring unit, the energization display unit, and the first and second communication units; And a control unit for controlling each part of the system; It is configured to include.

In addition, the monitoring body is an insulating structure made of reinforced plastic, one end of the first and second main body is rotatably coupled around the hinge portion so as to form a coupling hole through which the distribution line passes through the center, and the other end of the locking clamp It is configured to be locked by the lock made.

In addition, the line monitoring unit, the inclination sensor for monitoring the deflection of the distribution line for monitoring the disconnection accident; First and second temperature sensors configured to sense an outside air temperature of the monitoring main body and a temperature of the distribution line so as to monitor a fire or a shortened life of the line due to overheating of the distribution line; And a transformer for measuring voltage and current to monitor power quality of the distribution line. .

In addition, the energization display unit is an LED lamp indicating that the power distribution line is energized by turning on or blinking according to the power supplied from the autonomous power supply unit.

In addition, the first communication unit is an RF modem.

In addition, the second communication unit is a mobile communication modem.

The autonomous power supply unit may be a high efficiency power converter including a current meter, a current transformer, a state circuit, and a power supply device.

As such, the present invention monitors the outside temperature, the line temperature, the line current, the voltage, the slope, and the energization state, which are the main status information of the distribution line, and installs a smart monitoring device on the distribution line for wireless transmission to the remote management system. On the other hand, the power supply to the smart monitoring device is configured to be made in a manner that induces the power required from the distribution line, and in particular, the smart monitoring devices installed in the distribution line is configured to be connected to the wireless network of the mesh (MESH) structure, In addition to the voltage and current measurement functions of the conventional battery facilitating equipment, it is possible to implement the functions of monitoring overheating of the distribution line, monitoring disconnection due to sag of the line, and prevention of electric shock accident through the indication of electricity. It does not need a separate power cable, so that the installation and maintenance is easy On the other hand, even if a communication failure with the remote management system occurs, it is possible to relay the main status information of the distribution line to the neighboring smart monitoring device to prevent the degradation of the monitoring function due to the transmission error of the monitoring information can be expected.

1 is a perspective view showing the structure of a smart monitoring device for power distribution line in an embodiment of the present invention.
Figure 2 is a cross-sectional view showing the structure of the smart monitoring device for power distribution line in an embodiment of the present invention.
Figure 3 is a schematic block diagram of a smart monitoring device according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a perspective view showing a structure of a smart monitoring device for a distribution line in an embodiment of the present invention, Figure 2 is a cross-sectional view showing the structure of a smart monitoring device for a distribution line in an embodiment of the present invention, Figure 3 is As an example, a schematic block diagram of a smart monitoring apparatus is shown.

1 to 3, the smart monitoring apparatus for a distribution line according to an embodiment of the present invention includes a monitoring main body 10 that is installed in the distribution line 100 and the monitoring main body 10. It comprises a line monitoring unit 20, live-line indicator 30, the first and second communication unit 40, 50, and autonomous power (60) and the control unit 70 It is.

The monitoring body 10 is an insulated structure made of reinforced plastic so as to have durability that is strong against dust caused by fine vibration of the distribution line 100 and urban smoke, and is a sealed structure, which can be attached to the distribution line 100 in a live state. It is designed to be.

That is, the monitoring main body 10 is made of an insulating material to cope with the thermal deformation caused by the temperature rise of the portion connected to the line as the operating current of the distribution line 100 rises, as well as slip due to vibration It is a structure made of insulation material such as reinforced plastic to embed the antenna for wireless communication while having a preventable structure, which is a pair of first and second so that a coupling hole h1 through which the distribution line 100 passes is formed at the center. One end of the main body 11 and 12 is rotatably coupled to the hinge portion h2, and the other end of the main body 11 and 12 is closed by the locking clamp 13 to be closed.

The line monitoring unit 20 is configured in the monitoring main body 10, and after monitoring the outside temperature, the line temperature, the line current, the voltage, the slope, the energization state, etc., which are main state information of the distribution line 100, It is configured to output this to the control unit 70, and includes a tilt sensor 21, the first and second temperature sensors 22 and 23, and a transformer (PT: Potential Transducer) (24).

The inclination sensor 21 monitors the deflection of the distribution line 100 according to the control operation of the control unit 70, which is to monitor the power failure caused by the deflection of the distribution line 100.

The first temperature sensor 22 monitors the outside air temperature of the monitoring main body 10 according to the control operation of the control unit 70, which shortens the life of the fire or the line due to overheating of the distribution line 100. To monitor.

The second temperature sensor 23 monitors the internal temperature of the monitoring main body 10 according to the control operation of the controller 70, and also shortens the life of the fire or the track due to overheating of the distribution line 100. To monitor them.

The transformer 24 measures the voltage and current of the distribution line 100 according to the control operation of the controller 70, to monitor the power quality of the distribution line 100.

The energization display unit 30 is configured in the monitoring main body 10, and displays the energization state of the power distribution line 100 according to the control operation of the control unit 70, thereby enabling identification from the outside.

That is, the electricity display unit 30 is an LED lamp indicating that the power distribution line 100 is in the energized state by turning on or flashing according to the power supplied from the autonomous power supply unit 60, which is energized during electrical work and maintenance inspection. This is to display the status to call the attention of the electrician to prevent electric shock.

The first communication unit 40 is configured in the monitoring main body 10, the neighboring to wirelessly relay the monitoring information of the line monitoring unit 20 to the neighboring smart monitoring apparatus according to the control operation of the control unit 70. It is to construct a network of smart monitoring devices and mesh structure.

That is, the first communication unit 40 is an RF modem (modem), it is possible to set the wireless network of the mesh (mesh) structure and the RF modems of the smart monitoring devices installed in the neighboring power distribution line, When it occurs, it transmits information to neighboring RF modems to prevent degradation of real-time monitoring due to communication error.

The second communication unit 50 collects the monitoring information wirelessly relayed from the first communication unit 40 according to the control operation of the control unit 70 and wirelessly transmits it to a remote management system (not shown). In order to reduce costs, the company has been able to utilize a mobile network modem (GSM / 3G), which has been established nationwide.

The autonomous power supply unit 60 dissipates power from the power distribution line 100 according to the control operation of the control unit 70, so that the line monitoring unit 20, the energization display unit 30, and the first and second communication units 40. (50) is a high-efficiency power converter including a current transformer (Current transformer), a current transformer (Current Transformer), a state circuit (Condition circuit) and a switching mode power supply (SMPS) will be.

Smart monitoring device for a distribution line according to an embodiment of the present invention configured as described above, as shown in Figures 1 to 3 attached, when the monitoring main body 10 is first installed in the distribution line 100 as an insulating material, the monitoring In the main body 10, power is discharged from the power distribution line 100 by the autonomous power supply unit 60, which is a high efficiency power converter, and thus the line monitoring unit 20 and the energization display unit 30 configured in the monitoring main body 10. And the first and second communication units 40 and 50 are supplied with power required for operation according to the control operation of the control unit 70.

At this time, the inclination sensor 21 included in the line monitoring unit 20 monitors the deflection of the distribution line 100, the first temperature sensor 22 detects the outside air temperature of the monitoring body 10, The second temperature sensor 23 senses the temperature in the monitoring body 10, while the transformer 24 measures the voltage and current flowing in the distribution line 100.

Then, the sensing information of the inclination sensor 21 and the first and second temperature sensors 22 and 23 included in the line monitoring unit 20, and the voltage and current measurement values measured by the transformer 24 are neighbors. While the wireless relay is made through the first communication unit 40 constituting the network of the distribution lines and the mesh structure, the wireless relay monitoring information is collected by the second communication unit 50 and transmitted to the remote management system, Monitoring by the remote management system is enabled.

That is, when installing the smart monitoring device in each of the neighboring power distribution line, the first communication unit included in the smart monitoring device installed in each of the power distribution line to form a network of mesh structure with each other monitoring information (outdoor temperature, line Temperature, line current, voltage, slope, energization state, etc.), and the wireless information is exchanged through the wireless relay, and the monitoring information exchanged through the wireless relay is also remotely connected through the second communication unit of the smart monitoring apparatus respectively installed on the distribution lines. By wireless transmission to the management system, the remote management system can monitor the status of the distribution lines in real time through the monitoring information received from the plurality of second communication unit, as well as wireless even if a communication failure occurs in any one smart monitoring device Status of distribution line where communication error occurred through other monitoring information exchanged through relay Information such as outside temperature, line temperature, line current, voltage, slope, and energization state can be monitored in real time.

On the other hand, in the monitoring main body 10 is installed directly on the power distribution line 100, the LED lamp, which is the current display unit 30 is turned on or flashing according to the power supplied from the autonomous power supply unit 60 to display the current state. This is to prevent the electric shock accident by calling the attention of the electrician during the electrical work, maintenance and inspection.

That is, when the LED lamp, which is the electricity display unit 30, is turned on or blinking, the electrician who arrives at the site easily identifies from the outside that the power distribution line 100 is in the energized state and cuts off the power supply of the power distribution line 100. It is to be able to proceed with the maintenance work in one state, which can be expected to effect in advance to prevent the electric shock accident due to the unchecked the energized state of the distribution line 100.

The technical idea of the smart monitoring apparatus for a distribution line of the present invention has been described above with the accompanying drawings, but this is by way of example only for describing the best embodiment of the present invention and not for limiting the present invention.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined by the appended claims. It is to be understood that such changes and modifications are within the scope of the claims.

10; Monitoring body 11, 12; 1,2 main body
13; Locking clamp 20; Track monitoring department
21; Tilt sensor 22,23; 1st and 2nd temperature sensor
24; Transformer 30; Power indicator
40; A first communication unit 50; 2nd communication department
60; Autonomous power supply 70; The control unit
100; Power distribution line

Claims (5)

A monitoring body installed at the distribution line;
A line monitoring unit configured in the monitoring main body and configured to monitor main state information of a distribution line;
An energization display unit configured in the monitoring main body and configured to display an energization state of a distribution line;
A first communication unit configured in the monitoring main body and configured to establish a network of neighboring smart monitoring devices and a mesh structure so as to wirelessly relay monitoring information of the line monitoring unit to a neighboring smart monitoring device;
A second communication unit which collects monitoring information wirelessly relayed from the first communication unit and wirelessly transmits it to a remote management system;
An autonomous power supply unit for discharging electric power from the distribution line and supplying driving power to the line monitoring unit, the energization display unit, and the first and second communication units; And
A controller for controlling the line monitoring unit, the energization display unit, the first and second communication units, and the autonomous power supply unit; Smart monitoring device for power distribution line comprising a configuration. The method of claim 1, wherein the monitoring body,
An insulating structure made of reinforced plastics, the first and second main bodies of which are rotatably coupled around the hinge part to form a coupling hole through which a distribution line passes through the center, and the other end is locked by a locking clamp. Smart monitoring device for power distribution line characterized in that the configuration. The method of claim 1, wherein the line monitoring unit,
Tilt sensor for monitoring the deflection of the distribution line for monitoring the disconnection accident;
First and second temperature sensors configured to sense an outside air temperature of the monitoring main body and a temperature of the distribution line so as to monitor a fire or a shortened life of the line due to overheating of the distribution line; And
A transformer measuring voltage and current to monitor power quality of a distribution line; Smart monitoring device for power distribution line comprising a configuration. The smart monitoring apparatus for a power distribution line according to claim 1, wherein the power supply display unit is an LED lamp indicating that the power distribution line is in an energized state by lighting or blinking according to power supplied from the autonomous power supply unit. The smart monitoring apparatus for a distribution line according to claim 1, wherein the first communication unit is an RF modem and the second communication unit is a mobile communication modem.

Images