KR100927051B1 - Monitoring network system for power line and remote monitoring method of power line using same - Google Patents

Abstract

The present invention provides a monitoring network system for a power line. The monitoring network system is installed on a power line, a plurality of first sensors for detecting a current flow state of the power line, wirelessly communicating with each other in a first communication method and collecting a first data value, and the first sensor A plurality of second sensors disposed inside and outside of the first sensor and wirelessly communicating with the first sensor in a second communication manner to transmit a second data value to the first sensor; and wirelessly from the first sensors. And a transmission unit for remotely transmitting the received first data value and the second data value to a server. In addition, the present invention also provides a remote monitoring method of the power line using the monitoring network system, it is possible to remotely monitor in real time the status of the power line in the substation located in a remote.

Description

MONITORING NETWORK SYSTEM FOR POWER CABLE LINE AND RADIO MONITORING METHOD OF POWER CABLE LINE USING THE SAME}

The present invention relates to a monitoring network system for a power line and a method for remote monitoring of a power line using the same, and more particularly, a monitoring network for a power line to remotely monitor in real time the state of a power line in a substation located at a remote location. The present invention relates to a system and a remote monitoring method of a power line using the same.

In general, the transmission line of the power line is a power facility for supplying electric power generated from the power plant to substations through substations. Will also have a significant impact.

For example, the voltage of the transmission line is operated at ultra high voltage such as 154kV, 345kV, 765kV. Therefore, in recent years, in order to monitor the operation state of the transmission line operated at the ultra-high voltage, it is required to develop equipment installed directly on the transmission line to monitor the state of the transmission line.

In the conventional transmission line monitoring and diagnosis method, a site visitor regularly visits the transmission line and performs monitoring and diagnosis using local sensors (wind speed and camera) installed in the transmission tower.

Therefore, the status of the transmission line was monitored only by directly visiting the site or by using a local sensor rather than remotely monitoring the transmission line.

Because the conventional sensor network for remotely monitoring the status of the transmission line in the substation, because the substation located far from the transmission line could not receive the monitoring information about the status of the transmission line in real time.

Therefore, in the related art, since the transmission line is monitored using the above-described monitoring method, there is a problem in that a maintenance cost for monitoring and diagnosing the transmission line is increased.

In addition, since the transmission line is conventionally monitored using the above-described monitoring method, the transmission line cannot be monitored in real time at a long distance, and therefore, in case of failure or abnormality in the transmission line, it is immediately maintained and repaired. There was a problem that can not be implemented.

Therefore, in the case of the transmission tower near the substation, a private line or a method using CDMA was used in the past, but the initial investment cost was increased in the case of the dedicated line, and it was impossible to install nationwide. There is a problem that the use cost is increased due to the charge. Therefore, conventionally, there is a problem in that it is not installed nationwide by using the above methods, but only locally installed.

The present invention has been made to solve the above problems, the first object of the present invention is a power line monitoring network system that can remotely monitor the status of the transmission line in real time in the substation located far from the transmission line. The present invention provides a remote monitoring method of a used power line.

It is a second object of the present invention to provide a remote monitoring method of a power line using a power line monitoring network system that can easily reduce maintenance costs applied to maintaining and repairing a transmission line.

It is a third object of the present invention to provide a remote monitoring method of a power line using a power line monitoring network system that enables a transmission network monitoring network to be installed nationwide using a wireless communication method.

The power line monitoring network system of the present invention for achieving the above object is installed on the power line, to detect the current flow state of the power line and wirelessly communicate with each other in a first communication method and collect the first data value A plurality of second sensors disposed in the plurality of first sensors and inside and outside of the first sensor, and transmitting a second data value to the first sensor by wireless communication with the first sensor in a second communication method. Sensors, and a transmission unit for remotely transmitting the first data value and the second data value received wirelessly from the first sensors to a server.

Here, the transmission unit is a switching module that communicates with the first sensor and the first communication method and receives the first data value and the second data value, and is electrically connected to the switching module and the server. It is preferable to provide an optical cable for transmitting the first data value and the second data value.

The switching module preferably switches the second communication mode to the first communication method.

In addition, the first communication method is a Point to Point method, the use frequency is 5GHz, it is preferable that the wireless LAN communication method to which the IEC 61850 standard is applied.

In addition, the second communication method is preferably a Zigbee communication method to which the IEEE1451 standard is applied.

Remote monitoring method of a power line using the power line monitoring network system of the present invention for achieving the above object is provided on the power line through the first sensor to be wirelessly communicated with each other in a first communication method, Sensing the current flow state to collect the detected first data value, and wirelessly communicating with the first sensor in a second communication manner through a plurality of second sensors disposed inside and outside the first sensor. Communicating and transmitting a second data value to the first sensor, and remotely transmitting the first data value and the second data value wirelessly transmitted from the first sensors to a server through a transmission unit. Steps.

Here, the transmission unit communicates with the first sensor and the first communication method through a switching module to receive the first data value and the second data value, and the switching module is electrically connected to the server. It is preferable to transmit the first data value and the second data value to the server through an optical cable.

The switching module preferably switches the second communication mode to the first communication method.

In addition, the first communication method is a Point to Point method, the use frequency is 5GHz, it is preferable that the wireless LAN communication method to which the IEC 61850 standard is applied.

In addition, the second communication method is preferably a Zigbee communication method to which the IEEE1451 standard is applied.

The present invention has the effect of real-time monitoring the status of the power line in the substation located far from the power line.

In addition, the present invention has an effect that can easily reduce the maintenance costs put into the maintenance and repair of the power line.

In addition, the present invention has the effect that can be operated by enabling the nationwide installation of the monitoring network of the power line using a wireless communication method.

Hereinafter, a monitoring network system for a power line and a remote monitoring method of a power line using the same will be described with reference to the accompanying drawings.

In the following description, the configuration of the power line monitoring network system of the present invention will be described first, and the remote monitoring method of the power line using the same will be described.

1 is a view showing a monitoring network system for a power line of the present invention. 2 is a block diagram illustrating a monitoring network system for a power line of the present invention and a remote monitoring method of a power line using the same. 3 is a perspective view showing a first sensor and a second sensor according to the present invention.

Referring to FIG. 1, power transmission towers installed at a predetermined interval from each other in an island mountainous area are installed. The tops of these transmission towers are connected to each other by a fiber composite overhead line. The Sykes Combined Light Processing Line is connected to a substation. In addition, the transmission towers are connected to each other by power lines to transmit power.

The power line monitoring network system of the present invention remotely transmits an electrical or climatic state of the power line 10 to the substation 500.

The configuration of the monitoring system for power lines of the present invention is as follows.

The system is installed on the power line 10, a plurality of first sensors for sensing the current flow state of the power line 10, wirelessly communicating with each other in the first communication method (①) and collecting the first data value And 100 are disposed inside and outside the first sensor 100, and wirelessly communicate with the first sensor 100 in a second communication method (②) to obtain a second data value. A plurality of second sensors 200 to be transmitted to (100), and the first data value and the second data value wirelessly transmitted from the first sensor 100 to the server 510 remotely transmitted It is composed of a transmission unit 300.

The transmission unit 300 communicates with each other by the first sensor 100 and the first communication method (①), and the conversion module 310 receives the first data value and the second data value, and the conversion. An optical cable 320 is electrically connected to the module 310 and the server 510 to transmit the first data value and the second data value.

The optical cable 320 is interpolated inside the optical composite processing branch line 330.

In particular, the switching module 310 converts the second communication method ② into the first communication method ①.

To describe the communication method in more detail, the first communication method (①) is a Point to Point method, the use frequency is 5GHz, a wireless LAN communication method to which the IEC 61850 standard is applied.

In addition, the second communication method ② is a Zigbee communication method to which the IEEE1451 standard is applied.

Meanwhile, the first sensor 100 and the second sensor 200 according to the present invention will be described with reference to FIG. 3.

The first sensor 100 may be a ball sensor. In addition, the second sensor 200 may be the second sensor unit 220 and the image acquisition unit 210.

The first sensor 100 has a spherical sensor body 110 having a fitting hole 111 through which the power line 10 is inserted.

Inside the sensor body 110, the first sensor unit 120 for monitoring the electrical state of the power line 10 to obtain a first data value, and the external climatic of the power line 10 A second sensor unit 220 for monitoring a state and acquiring a second data value, an image acquiring unit 210 for monitoring an image of a peripheral portion of the power line 10 to acquire an image data value, and the first The data collector 150 receives and collects the first data value, the second data value and the image data value from the sensor unit 120, the second sensor unit 130, and the image acquisition unit 140. And a remote terminal 160 for remotely transmitting the data values collected by the data collecting unit 150 to the switching module 310, and disposed around the sensor body 110, and receiving light from the outside. The first sensor unit 120 and the second sensor unit 220 by converting the driving energy received by the received And a power supply 170 for supplying to the image acquisition unit 210 and the data acquisition unit 150 and the remote terminal unit (160).

The circumference of the sensor body 110 is formed of a frame 112 forming the grid-shaped installation holes 112a.

The power supply unit 170 is installed in each of the grid-shaped installation holes 112a formed by the frame 112.

The power supply unit 170 may be formed of a grid-like curved plate material to be fitted into the installation holes 112a. Preferably, the power supply unit 170 may be a solar sensor having a light collecting plate 171 for collecting and receiving light such as sunlight. The solar sensor may be installed in the installation hole 112a of the frame 112 to maintain the airtight therebetween. The power supply unit 170 is used for 20W class power generation using the solar sensor of the cell type.

In addition, an energy storage unit 180 is further installed inside the sensor body 110 to store the driving energy converted by the power supply unit 170 in a predetermined amount.

On the other hand, the first sensor unit 120 is a current sensor for sensing the current value flowing in the power line (10). The first sensor unit 120 is formed in a ring shape and is fitted to both ends of the fitting hole 111 of the sensor unit body 110. Here, the first data value is a current value.

In addition, the second sensor unit 220 includes a wind direction / wind speed sensor 221 for detecting wind direction and wind speed generated at the periphery of the power line 10, and a tilt sensor for detecting a tilt of the power line 10. 222. Here, the second data value is a wind direction value, a wind speed value, and an inclination value of the power line 10 generated in the periphery of the power line 10.

The tilt sensor 222 may be a tilt sensor of the MEMS type, and may measure a vertical and horizontal tilt of the power line 10 and may be a sensor having a tilt resolution of 0.01 degrees / digit.

Next will be described the power line monitoring network system of the present invention configured as described above and the remote monitoring method of the power line using the same.

1 and 2, each of the first sensors 100 is installed on the power line 100 to obtain a first data value, which is a current data value for the flow of current in the power line 10. Detect.

Subsequently, the first sensor 100 collectively collects the detected first data values.

On the other hand, each of the second sensors 200 installed inside the first sensor 100 or installed around the transmission tower outside the second sensor 200 has a second data value such as a climatic data value or external visible data values. Detect.

The second sensors 200 transmit the second data value by wireless communication to the first sensor 100 in a second communication method (②). Here, the second communication method (②) is a sensor network communication method, and the Zigbee communication method to which the IEEE1451 standard is applied is applied.

That is, the first sensor unit 120 is a current sensor and senses a current value flowing in the power line 10, and transmits the detected current value as a first data value to the data collection unit 150.

In addition, the second sensor unit 220 is a wind direction / wind speed sensor 221 for detecting the wind direction and wind speed generated in the periphery of the power line 10, and a tilt sensor for detecting the slope of the power line 10 The wind direction / wind speed sensor 221 and the tilt sensor 222 may include a wind direction value and a wind speed value around the power line 10, and a slope value of the power line 10. As a result, it is transmitted to the data collection unit 150.

The wind direction / wind speed sensor 221 may prevent an inter-phase short circuit occurring when the outer surface of the power line 10 gets wet due to climatic influences.

On the other hand, the image acquisition unit 210 is a device such as CCTV, the image acquisition unit 220 is the periphery of the power line 10, preferably the periphery of the sensor body portion 110 or of the internal power line 10 The image data value of the surrounding state is obtained and transmitted to the data collection unit 150.

Therefore, the image acquisition unit 140 may monitor in real time the environment, such as wildfire, landslides, bad weather around the power line 10.

As such, the first and second data values and the image data values received from the first and second sensor units 120 and 220 and the image acquisition unit 210 are transmitted from the data collection unit 150 to the remote terminal unit 160.

Subsequently, the first sensor 100 transmits the first data value and the second data value to the switching module 310 through the first communication method ①. That is, the remote terminal unit 160 converts the data values into the form of a remote signal and transmits the data to the switching module 310 provided at a long distance.

 Here, the conversion module 310 converts the second communication method (②), which is the Zigbee communication method to which the IEEE1451 standard is applied, into the first communication method (①), which is the wireless LAN communication method to which the IEC 61850 standard is applied.

Subsequently, the conversion module 310 may transmit the first and second data values to the optical cable 320 that is electrically connected.

Since the optical cable 320 is electrically connected to the server 510 of the substation 500, the server 510 may receive the first and second data values through the optical cable 320.

Therefore, it is possible to easily monitor the current value state of the power line 10, the wind direction and wind speed of the surroundings, the inclination state of the power line 10, and the external situation of the periphery thereof.

In addition, since an electrical or climatic state of the power line 10 may be monitored in real time in the station 500 having the power line 10 and a server 510 provided at a long distance, an abnormal state occurs in the power line. After that, maintenance can be done immediately.

1 is a view showing a monitoring network system for a power line of the present invention.

2 is a block diagram illustrating a monitoring network system for a power line of the present invention and a remote monitoring method of a power line using the same.

3 is a perspective view showing a first sensor and a second sensor according to the present invention.

** Description of symbols for the main parts of the drawing **

10: power line 20: transmission tower

100: first sensor 200: second sensor

300: transmission unit 310: switching module

330: fiber composite overhead wire 320: optical cable

510 server 500 substation

Claims (8)

A plurality of first sensors installed on a power line, detecting a current flow state of the power line, wirelessly communicating with each other in a first communication method, and collecting first data values; A plurality of second sensors disposed inside and outside the first sensor and transmitting a second data value to the first sensor by wirelessly communicating with the first sensor in a second communication method; And And a transmission unit for remotely transmitting the first data value and the second data value wirelessly transmitted from the first sensors to a server. The first sensors transmit the first data value and the second data value to the transmission unit using the first communication scheme, The first communication method is a Point to Point method, the use frequency is 5GHz, a wireless LAN communication method to which IEC 61850 standard is applied, The second communication method is a power line monitoring network system, characterized in that the Zigbee communication method to which the IEEE1451 standard is applied. The method of claim 1, The transmission unit communicates with each other by the first sensor and the first communication scheme, and includes a switching module receiving the first data value and the second data value, and electrically connected to the switching module and the server. An optical cable for transmitting a data value and the second data value, The switching module is a power line monitoring network system, characterized in that for switching the second communication method to the first communication method. delete delete The current flow state of the power line is installed on the power line, through the first sensor wirelessly communicating with each other in the first communication method of the wireless LAN communication method applied to the IEC 61850 standard with a point to point method and a frequency of 5GHz Detecting and collecting a first data value; Through a plurality of second sensors disposed inside and outside the first sensor, the first sensor and the second sensor by wireless communication with each other in a second communication method that is a Zigbee communication method to which the IEEE1451 standard is applied to obtain a second data value. Transmitting to the network; And The first sensors transmit the first data value and the second data value to a transmission unit using the first communication scheme, and through the transmission unit, the received first data value and the second data. A remote monitoring method for a power line using a power line monitoring network system comprising the step of remotely transmitting a value to a server. The method of claim 5, The transmission unit communicates with the first sensor and the first communication method through a switching module to receive the first data value and the second data value, The conversion module transmits the first data value and the second data value to the server through an optical cable electrically connected to the server. The switching module is a remote monitoring method of a power line using a power line monitoring network system, characterized in that for switching the second communication method to the first communication method. delete delete

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