KR101735743B1 - Load current detection apparatus for overhead transmission and distribution line using drone - Google Patents

Abstract

The present invention relates to an apparatus for detecting load current of an overhead transmission and distribution line using a flying object, which can conveniently and precisely detect the load current of the overhead transmission and distribution line, which is difficult to be approached and measured by a person, by using a unmanned flying object (for example, a drone). The apparatus of the present invention comprises: an unmanned flying object with equipment for measuring load current of an overhead transmission and distribution line, and moving to a position of the overhead transmission and distribution line through the flight; a current measuring controller mounted on the unmanned flying object, controlling the driving of a current measuring device, and storing detected current as information for determining the load current; and a current measuring device for measuring the load current of the overhead transmission and distribution line in a measurement position of the overhead transmission and distribution line in accordance with the control of the current measuring controller, and transferring the same to the current measuring controller. Accordingly, the apparatus for detecting the load current of the overhead transmission and distribution line using the flying object is realized, and each phase current of a three-phase overhead transmission and distribution line is simultaneously measured.

Description

TECHNICAL FIELD [0001] The present invention relates to a load current detection apparatus for overhead transmission and distribution line using drone,

The present invention relates to a load current detecting apparatus for a transmission / distribution line using a flying object, and more particularly, to a load current detecting apparatus for detecting a load current of a processed / And more particularly, to a load current detection apparatus for a transmission / distribution line using a flight object.

Korea's power system can supply power directly from a substation to large-scale customers such as factories and buildings through 154kV, 345kV, 765kV, electric railway, 22.9kV-y power distribution system, It supplies electricity to factories and homes.

Here, the transmission / distribution line is constructed in the form of a machined line (called "processing / transmission line") in the outskirts of cities and farming and fishing villages, but buried underground in areas where beauty is important, such as large cities and amusement parks.

Processed transmission and distribution lines use single-phase loads in factories and houses, and currents of each phase (a, b, c) flow to the three-phase line with unbalance.

When the unbalanced current becomes large, the line utilization ratio of the transmission / distribution line is lowered, and the generator is not able to generate the rated output because the generator is overheated due to the reverse current.

In addition, the three-phase motor is overheated by the reverse-phase current in the customer, the product is not uniform due to the reverse-phase torque, and the loss becomes large.

In addition, the voltage of each phase is different, which affects the single phase load.

Therefore, it is necessary to measure the currents of each phase (a, b, c) simultaneously at branching points of the transmission and distribution lines or at the connection points of the customer service facility and the pillar transformer to compensate the unbalance of the load or to balance the load Electrical work should be carried out.

In the following Patent Documents 1 to 2, there is disclosed a measuring apparatus for a conventional transmission / distribution line.

In the prior art disclosed in Patent Document 1, a CT sensor for obtaining a voltage and a CT sensor for obtaining a current are separately provided in a single structure in a constituent of a current transformer (CT) sensor, According to the operation of the controller unit, the CT sensor of the current unit operates without being influenced, and the CT sensor and the controller unit are integrated so that convenience in use and convenience in maintenance can be achieved.

In addition, the prior art disclosed in Patent Document 2 uses a dron to automatically fly around a power facility along a cable, shoot a high-quality image, and perform real-time image processing, thereby realizing the image of a power facility as a ground control system To perform a quick and efficient power equipment diagnosis.

Korean Registered Patent No. 10-0979636 (Registered on Aug. 26, 2010) (Wireless Monitoring System for Detecting an Abnormal Current in a Processed Transmission Line) Korean Patent Laid-Open No. 10-2016-0123551 (Oct. 26, 2016) (Topological information-based drones system automatic control system and method thereof for electric power facility inspection)

However, the current detection method and the conventional technique of the conventional processing and transmission line as described above have a disadvantage in that it is difficult to accurately detect the load current of the processed transmission / distribution line because the method of confirming the ammeter of the substation is used.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a method and apparatus for controlling a load current of a processed / And an object of the present invention is to provide a load current detecting apparatus for a transmission / distribution line using a flight object which can detect in real time.

It is another object of the present invention to provide a load current detection device for a processing / transmission line by using a flying object which can prevent a measurer from being charged by a load current by detecting a load current of a processed /

It is another object of the present invention to provide a method and apparatus for detecting a load current of a processed / delivered line using a vehicle that can detect a three-phase load current of a processed / Device.

In order to achieve the above object, the load current detection device for a processed / delivered line using a flight according to the present invention is equipped with a device for measuring a load current of a processed transmission / distribution line, Unmanned aerial vehicles; A current measuring controller mounted on the unmanned aerial vehicle for controlling driving of a current measuring device and storing the detected current as information for determining a load current; And a current measuring unit for measuring a load current of the processed transmission / distribution line at a measurement position of the processed transmission / distribution line under the control of the current measurement controller and transmitting the measured load current to the current measurement controller,

And the current measuring device simultaneously measures the current of the three-phase processed transmission and distribution line.

Wherein the current measurement controller comprises: a remote control signal receiver for receiving an adjustment signal transmitted from a remote location; A mode setting unit for setting a manual mode for manually setting the position of the current measuring device in an automatic mode or in response to a remote control signal; A camera for acquiring image information by shooting; And controlling the position of the current meter by using the adjustment signal when the mode set by the mode setting unit is a manual mode and setting the position of the current meter by image analysis acquired by the camera when the set mode is the automatic mode A current measurement control unit for controlling the driving of the current measuring unit and the storage of the measured current; A position setting unit for setting the position of the current measuring unit under the control of the current measurement control unit; A meter driving unit for driving the current meter under the control of the current measurement control unit; A measurement current collecting unit for collecting the three-phase current measurement values measured by the current measuring unit, converting the three-phase current measurement values into a digital signal, and transmitting the digital signal to the current measurement control unit; And a memory for storing the measured current output from the current measurement control unit as load current determination information of the processed transmission / distribution line.

The current measuring device includes a driving signal transmission cable for transmitting a sensor driving signal output from the current measurement controller, a first current measuring unit for turning on / off the first to third current measuring units according to a sensor driving signal transmitted through the driving signal transmitting cable, the first to third sensor drivers are operated in the ON or OFF state in accordance with the operation of the first to third sensor drivers and the closed circuit is formed in the ON state, First to third current measuring units simultaneously measuring three-phase load currents; And first to third measured value transmission cables for transmitting the current values measured by the first to third current measurement units to the current measurement controller.

The first to third sensor drivers may be configured to control the first to third current measuring units, which approach the processed transmission / distribution line to the open state under the control of the current measurement controller, so as to surround the processed / And closes the third current measuring unit.

Wherein the current measurement controller comprises: a remote control signal receiver for receiving an adjustment signal transmitted from a remote location; A mode setting unit for setting a manual mode for manually setting the position of the current measuring device in an automatic mode or in response to a remote control signal; A camera for acquiring image information by shooting; And controlling the position of the current meter by using the adjustment signal when the mode set by the mode setting unit is a manual mode and setting the position of the current meter by image analysis acquired by the camera when the set mode is the automatic mode A current measurement control unit for controlling the driving of the current measuring unit and the storage of the measured current; A position setting unit for setting the position of the current measuring unit under the control of the current measurement control unit; A meter driving unit for driving the current meter under the control of the current measurement control unit; A measuring current collecting unit for collecting the three-phase current measurement value measured by the current measuring unit; An optical / electrical converter for converting the three-phase current optical signal collected by the measuring current collecting unit into an electrical signal, converting the optical signal into a digital signal, and transmitting the digital signal to the current measurement controller; And a memory for storing the measured current output from the current measurement control unit as load current determination information of the processed transmission / distribution line.

The current measuring device includes a driving signal transmission cable for transmitting a sensor driving signal output from the current measurement controller, a first current measuring unit for turning on / off the first to third current measuring units according to a sensor driving signal transmitted through the driving signal transmitting cable, the first to third sensor drivers are operated in the ON or OFF state in accordance with the operation of the first to third sensor drivers and the closed circuit is formed in the ON state, First to third current measuring units simultaneously measuring three-phase load currents; First to third electro-optical converters for converting the current values measured by the first to third current measuring units into optical signals; And first to third optical fibers for transmitting the optical signals converted by the first to third pre-optical converters to the current measurement controller.

The sensor driving unit controls the current measuring controller to move the first through third current measurement units to the open / close state and to open / close the processed / Thereby closing the part.

According to the present invention, by detecting the load current of the three-phase processing transmission / distribution line in which a high pressure flows using an unmanned air vehicle, the convenience of detection of the current of the processed transmission / distribution line can be obtained. By using an unmanned air vehicle, There is an advantage that an electric shock accident caused by the electric shock can be prevented in advance.

In addition, according to the present invention, it is possible to detect the load current of the processed / distributed transmission line by using the unmanned air vehicle, and simultaneously detect the load currents of the three phases of the processed / distributed transmission line, thereby shortening the current detection time of the processed transmission / There is an advantage that the load current can be accurately detected by simultaneously detecting three-phase current in real time.

In addition, according to the present invention, when the unmanned air vehicle is set to the automatic mode, the position information of the processed transmission / distribution line is obtained by using the camera, and automatically moves to the measurement position of the processed / It is possible to eliminate the inconvenience of the user's operation, thereby improving the convenience of the user.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram showing an example of a load current detection apparatus for a processed transmission and distribution line using a flying object according to a first embodiment of the present invention,
FIG. 2 is a diagram showing an example of detection of a working power transmission line of a load current detecting device for a processed transmission / distribution line using a flying object according to a first embodiment of the present invention,
3 is a diagram showing an example of the load current detection device of a processed / distributed transmission line using a flight vehicle according to the first embodiment of the present invention,
FIG. 4 is a diagram showing an example of detection of a working distribution line in a load current detection device for a processed / distributed transmission line using a flying object according to a first embodiment of the present invention;
FIG. 5 is a block diagram of a current measurement controller applied to FIGS. 1 to 4. FIG.
6 is a detailed configuration diagram of a current meter applied to Figs. 1 to 4. Fig.
FIG. 7 is a diagram showing an example of the load current detection device of a processed / distributed transmission line using a flying object according to the second embodiment of the present invention,
8 is a diagram showing an example of detection of a working power transmission line of a load current detection device for a processed transmission / distribution line using a flying object according to a second embodiment of the present invention,
FIG. 9 is a diagram showing an example of the load current detection device for a processed / distributed transmission line using a flight vehicle according to the second embodiment of the present invention before detection by a processing distribution line,
FIG. 10 is an exemplary detection diagram of a processing power distribution line of a load current detection device for a processed transmission and distribution line using a flight according to a second embodiment of the present invention, FIG.
11 is a block diagram of a current measurement controller applied to Figs. 7 to 10,
FIG. 12 is a detailed configuration diagram of a current meter applied to FIGS. 7 to 10,
13 is a positional example for detecting load current of a processed / distributed line by using a flying object in the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an apparatus for detecting a load current of a processed / delivered line using a flight vehicle according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

≪ Example 1 >

FIG. 1 and FIG. 2 are diagrams for illustrating a configuration for detecting a load current of a machining power transmission line using a load current detection device for a processed transmission and distribution line using a flying object according to a first preferred embodiment of the present invention. FIGS. 3 and 4 are views FIG. 2 is a configuration diagram for detecting a load current in a processing distribution line by using a load current detection apparatus for a processed / distributed line using a flight according to a first preferred embodiment of the present invention;

Since the configuration and the method of detecting the load current in the transmission line or the distribution line are the same, only the transmission line will be described below for convenience of explanation.

The first embodiment of the load current detection device for a processed / distributed line using a flight according to the present invention includes the unmanned air vehicle 110, the current measurement controller 120, and the current meter 130.

The unmanned air vehicle 110 is equipped with a device for measuring the load current of the processed transmission and distribution lines 11 to 13 and moves to the position of the processed transmission and distribution lines 11 to 13 through the flight. Here, it is assumed that the unmanned aerial vehicle 110 can utilize various flying objects, and a drone is used as an embodiment of the present invention. Since the unmanned aerial vehicle 110 is in a state of being well-known in the field of drone, flight and control are performed by induction of radio waves, and flight and control through induction of radio waves are well known in the art, so a detailed description thereof will be omitted do.

Here, since the processed transmission / distribution lines 11 to 13 use three phases, the three processed transmission / distribution lines can be understood as three lines for each phase.

The current measurement controller 120 is mounted on the body 111 of the unmanned air vehicle 110 and controls driving of the current meter 130 and stores the detected current as information for determining an unbalanced current.

5, the current measurement controller 120 includes a remote control signal receiving unit 121 for receiving an adjustment signal wirelessly transmitted from a remote location, an automatic mode setting unit 123 for automatically setting a position of the current meter 130, A mode setting unit 122 for setting a manual mode to be manually set according to a remote control signal, a camera 112 for capturing and acquiring image information, a mode set by the mode setting unit 122, In the manual mode, the position of the current meter 130 is controlled using the adjustment signal. If the set mode is the automatic mode, the position of the current meter 130 is determined through image analysis acquired by the camera 112 A current measurement control unit 123 for controlling the operation of the current measuring unit 130 and the storage of the measured current and a control unit 123 for controlling the current measuring unit 130 according to the control of the current measuring control unit 123, A measuring device driving unit 126 for driving the current measuring device 130 under the control of the current measuring control unit 123 and a current measuring unit 130 for collecting the measured current values measured by the current measuring unit 130 A measurement current collecting unit 127 for converting the measured current into a digital signal and transmitting the digital current to the current measurement controller 123; And a memory 124 for storing data.

Here, the camera 112 may be separately provided in the current measurement controller 120 and may acquire image information through shooting or utilize a camera that is basically provided in the existing unmanned air vehicle 110.

Herein, it is assumed that the unmanned air vehicle 110 is controlled and operated by induction of radio waves by a user, and the current measuring device 130 is controlled by a user's radio wave induction or image analysis taken by a camera.

The current measuring unit 130 measures the load current of the processed transmission and distribution lines 11 to 13 at the measurement positions of the processed transmission and distribution lines 11 to 13 under the control of the current measurement controller 120, (120).

13 is a positional example of the load current of the processed transmission and distribution lines 11 to 13 by using the unmanned air vehicle 110 according to the present invention and C1, C2, C3, C4, C5, It can be a position to simultaneously measure three-phase load current.

6, the current meter 130 includes a drive signal transfer cable 137 for transferring a sensor drive signal output from the current measurement controller 120, First to third sensor drivers 134 to 136 for operating the first to third current measuring units 131 to 133 in an on or off state according to a sensor driving signal, The first and second sensor drivers 134 to 136 operate to turn on or off according to the operation of the sensor driver 134 to 136 and form a closed circuit in the on state to simultaneously measure the three- The first to third measured value transmission cables 131 to 133 for transmitting the current values measured by the first to third current measurement units 131 to 133 to the current measurement controller 120, (138a-138c).

The current measuring unit 130 includes a driver 139a for adjusting the length of the first and third current measuring units 131 and 133 and a length adjusting unit 139b for adjusting the length of the current measuring unit 131 and 133 according to the control of the driver 139a. ).

The first to third sensor drivers 134 to 136 are connected to the first to third current measuring units 131 to 131 which approach the processed transmission and distribution lines 11 to 13 in an open state under the control of the current measurement controller 120. [ 133) to close the first to third current measuring units 131 to 133 so as to enclose the processed transmission / distribution line 11 to 13 at a specific position, respectively.

The operation of the load current detection device for a processed / distributed line using the air vehicle according to the first preferred embodiment of the present invention will be described in detail as follows.

First, a user (manager) controls the flying and steering of the UAV 110 using a radio controller in order to detect the load current of the processed transmission and distribution lines 11 to 13. At this time, the user has to control the unmanned air vehicle 110 by using the remote controller at a long distance without being close to the processed transmission / distribution lines 11 to 13 through which the high pressure flows. Therefore, It is possible to ensure the safety of the user even if an abnormal current is generated in the processed transmission / distribution lines 11 to 13 due to the occurrence of electric current, ground fault or envelope.

The user moves the unmanned air vehicle 110 close to the processed transmission and distribution lines 11 to 13 and then precisely controls the current measuring device 130 via the radio remote controller to place the current measuring device 130 on the processed transmission and distribution lines 11 to 13, It is possible to place the current measuring device 130 on the processed transmission / distribution lines 11 to 13 without inconvenience of adjusting through the transmission /

For example, before the user uses the unmanned air vehicle 110 to measure the currents of the processed and distributed lines 11 to 13, The mode setting key of the mode setting unit 122 provided in the current measurement controller 120 is operated to set the automatic mode or the manual mode.

When the current measurement controller 120 starts to drive the current measurement controller 120, the current measurement controller 123 controls the position setting unit 125 according to the mode set by the mode setting unit 122 to set the current meter 130 to a predetermined position .

In other words, when the mode set by the mode setting unit 122 is the manual mode, the current measurement control unit 123 controls the position setting unit 125 based on the user adjustment signal received from the remote adjustment signal receiving unit 121 So that the current measuring device 130 moves to a predetermined position. If the mode set by the mode setting unit 122 is an automatic mode, the current measurement control unit 123 controls the current measurement unit 123 based on the processed transmission / distribution lines 11 to 13 photographed by the camera 112, (125) so that the current measuring device (130) moves to a predetermined position. Here, it is assumed that the current measuring unit 130 is rotated by the control of the position setting unit 125, or forward and backward. Since the automatic control through image reading is a well-known technique in the image analysis and movement control technology, it is assumed that the present invention uses the known image reading technology and control technology as it is to control the position of the current measuring device 130 do.

Here, the height of the transmission line installed on the steel tower differs according to the installation standard. Therefore, in order to compensate for such a difference, the length adjusting section 139b is operated through the driver 139a so that the lengths of the first and third current measuring sections 131 and 133 corresponding to the height of the transmission / .

On the other hand, as shown in Figs. 1 and 3, when the current measuring device 130 reaches a predetermined position by the position setting control, the first to third current measurements When the units 131 to 133 are located, the current measurement control unit 123 operates the measuring device driving unit 126. Here, the outer surfaces of the first to third current measuring parts 131 to 133 are preferably coated with an insulating material.

The sensor driving unit 126 generates a sensor driving signal when the operation is performed and the sensor driving signal thus generated is transmitted to the first to third sensor driving units 134 to 136 through the driving signal transmitting cable 137 .

The first to third sensor drivers 134 to 136 receive the sensor driving signals and operate the first to third current measuring units 131 to 133 to measure the currents Measure the load current.

For example, the first through third sensor drivers 134 through 136 may be connected to the first through third current measuring units 120 through 130, which approach the processed transmission / distribution line 11 through 13 under the control of the current measurement controller 120, The first to third current measuring units 131 to 133 are closed so as to enclose the processed transmission and distribution lines 11 to 13 at specific positions. That is, the first to third current measuring units 131 to 133 that are opened are closed so that both ends are brought into contact with each other as shown in Figs. When the both ends are in contact with each other, the current measuring unit provided in the first to third current measuring units 131 to 133 is closed, thereby inducing the current generated in the processed transmission and distribution lines 11 to 13 in an electromagnetic induction manner, . Here, the electromagnetic induction method means that when a magnet moves near a closed circuit or a magnetic field is changed by using another circuit in which a current flows, a current is passed through the closed circuit by an electromagnetic induction phenomenon.

It is a feature of the present invention that the abnormal current can be measured at the same time by using the first to third current measuring units 131 to 133 for each phase of the three-phase processed transmission and distribution line 11 to 13. If the actual three-phase process transmission and distribution lines are individually measured for each phase, the accuracy becomes poor. This means that the measurement current can be changed according to the measuring time when the environment of the processed transmission line is changed. On the contrary, since the present invention simultaneously measures each phase of the three-phase processed transmission and distribution line, it is possible to precisely measure the load current on each phase of the processed transmission and distribution line while preventing problems that may vary depending on the environment change or measurement time .

The first to third current measuring units 131 to 133 measure currents in different phases (for example, R, S, T) of the three-phase processed transmission and distribution line. That is, it is assumed that the first current measuring unit 131 measures the R phase, the second current measuring unit 132 measures the S phase, and the third current measuring unit 133 measures the T phase. / RTI >

The R-phase measurement current measured by the first current measurement unit 131 is transmitted to the current measurement controller 120 via the first measurement value transmission cable 138a, and the S phase current measured by the second current measurement unit 132 The phase measurement current is transmitted to the current measurement controller 120 via the second measurement value transmission cable 138b and the T phase measurement current measured by the third current measurement unit 133 is transmitted to the third measurement value transmission cable 138c. Lt; RTI ID = 0.0 > 120 < / RTI >

The measured current collecting unit 127 of the current measuring controller 120 collects current measurement values of the measured processed transmission and distribution lines 11 to 13 and converts the measured current values into digital current measurement data, (123).

The current measurement control unit 123 stores the current measurement data of the transferred processed transmission / distribution line in the memory 124 as information for determining the load current of the processed transmission / distribution line.

The current measurement data of the different processed transmission / distribution line stored in the memory 124 is utilized to determine the unbalanced current of the later processed transmission / distribution line.

≪ Example 2 >

FIG. 7 and FIG. 8 are diagrams for illustrating a configuration for detecting a load current of a machining power transmission line using a load current detection device for a processed / distributed transmission line using a flying object according to a second preferred embodiment of the present invention, Fig. 8 is a configuration diagram for detecting load current of a processing distribution line by using a load current detection apparatus for a processed / distributed transmission line using a flying object according to a second preferred embodiment of the present invention;

The configuration and method for detecting the load current in the transmission line or the distribution line are the same, and therefore, only the transmission line will be described below for convenience of explanation.

The second embodiment of the load current detection apparatus for a processed / distributed line using the air vehicle according to the present invention includes the unmanned air vehicle 110, the current measurement controller 150, and the current meter 140.

The unmanned air vehicle 110 is equipped with a device for measuring an abnormal current of the processed transmission and distribution lines 11 to 13 and moves to the position of the processed transmission and distribution lines 11 to 13 through the flight. Here, it is assumed that the unmanned aerial vehicle 110 can utilize various flying objects, and a drone is used as an embodiment of the present invention. Since the unmanned aerial vehicle 110 is in a state of being well-known in the field of drone, flight and control are performed by induction of radio waves, and flight and control through induction of radio waves are well known in the art, so a detailed description thereof will be omitted do.

Here, since the processed transmission / distribution lines 11 to 13 use three phases, the three processed transmission / distribution lines can be understood as three processed transmission / distribution lines.

The current measurement controller 150 is mounted on the body 111 of the unmanned air vehicle 110 and controls the operation of the current meter 140 and stores the detected current as information for determining the load current.

11, the current measurement controller 150 includes a remote control signal receiving unit 151 for receiving an adjustment signal wirelessly transmitted from a remote location, an automatic mode setting unit for automatically setting the position of the current measuring unit 140, A mode setting unit 152 for setting a manual mode to manually set according to an adjustment signal transmitted from a remote device, a camera 112 for capturing and acquiring image information, a mode set by the mode setting unit 152 In the manual mode, the position of the current meter 140 is controlled using the adjustment signal. If the set mode is the automatic mode, the position of the current meter 140 is determined through image analysis acquired by the camera 112 A current measurement controller 153 for controlling the operation of the current meter 140 and the storage of the measured current and a controller 160 for controlling the position of the current meter 140 according to the control of the current measurement controller 153 A measuring unit driving unit 156 for driving the current measuring unit 140 under the control of the current measuring control unit 153 and generating a driving signal for controlling the length of the measuring unit, 140), a three-phase current optical signal output from the measuring current collecting unit 157 is converted into an electrical signal and then converted into a digital signal, And a memory 154 for storing the measured current output from the current measurement control unit 153 as load current determination information of the processed transmission and distribution lines 11 to 13 do.

Here, the camera 112 may be separately provided in the current measurement controller 150, and may acquire image information through shooting or utilize a camera that is basically provided in the existing unmanned air vehicle 110.

Herein, it is assumed that the unmanned air vehicle 110 is controlled and operated by induction of a radio wave by a user, and the current measuring device 150 is controlled by a user's radio wave induction or image analysis taken by a camera.

The current measuring device 140 measures an abnormal current of the processed transmission and distribution lines 11 to 13 at the measurement position of the processed transmission and distribution lines 11 to 13 under the control of the current measurement controller 150, (150).

12, the current measuring device 140 includes a driving signal transmitting cable 147 for transmitting a sensor driving signal output from the current measuring controller 150, a driving signal transmitting cable 147 for transmitting a driving signal transmitted from the driving signal transmitting cable 147, First to third sensor drivers 141a, 142a and 143a for operating the first to third current measuring units 141 to 143 in the ON or OFF state according to the sensor driving signal, And the third sensor driver 141a, 142a, and 143a, and a closed circuit is formed in the ON state to measure the three-phase currents of the processed transmission and distribution lines 11 to 13 at the same time The first through third current measuring units 141 through 143 and the first through third current measuring units 141 through 143 convert the current values measured by the first through third current measuring units 141 through 143 into optical signals. 144a to 144c, the optical signals converted by the first to third pre-optical converters 144a to 144c, It includes first to third optical fiber (145a ~ 145c) to pass the measurement controller 150.

The current meter 140 includes a driver 149a for adjusting the lengths of the first and third current measuring units 141 and 143 under the control of the measuring device driver 156, And a length adjuster 149b whose length is adjusted.

The first to third sensor drivers 141a to 141c are connected to the first to third current measuring units 141 to 141 which approach the processed transmission and distribution lines 11 to 13 in an open state under the control of the current measuring controller 150. [ 143) to close the first to third current measuring units 141 to 143 so as to enclose the processed transmission and distribution lines 11 to 13 at specific positions.

The operation of the load current detecting device for the processed / distributed line using the air vehicle according to the second preferred embodiment of the present invention will be described in detail as follows.

First, a user (manager) controls the flying and steering of the UAV 110 using a radio controller in order to detect the load current of the processed transmission and distribution lines 11 to 13. At this time, the user has to control the unmanned air vehicle 110 by using the remote controller at a long distance without being close to the processed transmission / distribution lines 11 to 13 through which the high pressure flows. Therefore, It is possible to ensure the safety of the user even if an abnormal current is generated in the processed transmission / distribution lines 11 to 13 due to the occurrence of electric current, ground fault or envelope.

The user moves the unmanned air vehicle 110 close to the processed transmission and distribution lines 11 to 13 and then precisely controls the current measuring device 140 via the radio remote controller to place the current measuring device 140 on the processed transmission and distribution lines 11 to 13, It is possible to place the current measuring instrument 140 on the processed transmission / distribution lines 11 to 13 without inconvenience of adjusting through the transmission /

For example, before the user uses the unmanned air vehicle 110 to measure the currents of the processed and distributed lines 11 to 13, The mode setting key of the mode setting unit 152 provided in the current measurement controller 150 is operated to set the automatic mode or the manual mode.

The current measurement controller 150 controls the position setting unit 155 in accordance with the mode set by the mode setting unit 152 in the current measurement controller 153 to set the current meter 140 to a predetermined position .

In other words, if the mode set by the mode setting unit 152 is the manual mode, the current measurement control unit 153 controls the position setting unit 155 based on the user adjustment signal received from the remote control signal receiving unit 151 So that the current measuring device 140 moves to a predetermined position. If the mode set by the mode setting unit 152 is an automatic mode, the current measurement control unit 153 controls the current setting unit 153 to set the current position of the current position of the current position (155) so that the current meter (140) moves to a predetermined position. Here, it is assumed that the current measuring device 140 is rotated or moved forward or backward under the control of the position setting unit 155. Since the automatic control through image reading is a well-known technique in the image analysis and movement control technology, it is assumed that the present invention uses the known image reading technology and control technology as it is to control the position of the current measuring device 140 do.

Here, the height of the transmission line installed on the steel tower differs according to the installation standard. Therefore, in order to compensate for such a difference, the length adjusting section 149b is operated through the driver 149a so that the lengths of the first and third current measuring sections 141 and 143 corresponding to the height of the transmission / .

On the other hand, as shown in Figs. 8 and 10, when the current measuring device 140 reaches a predetermined position by the position setting control, the first to third current measurements When the units 141 to 143 are located, the current measurement control unit 153 operates the measuring device driving unit 156. Here, the outer surfaces of the first to third current measuring units 141 to 143 are preferably coated with an insulating material.

The sensor driving unit 156 generates a sensor driving signal when an operation is performed, and the sensor driving signal thus generated is transmitted to the first to third sensor driving units 141a to 141c through the driving signal transmitting cable 157 .

The first to third sensor drivers 141a to 141c operate the first to third current measuring units 141 to 143 by using the sensor driving signals and transmit the sensor driving signals to the first to third sensor drivers 141a to 141c, Measure the load current.

For example, the first to third sensor drivers 141a to 141c may be connected to the first to third current measuring units 150a to 150c, which approach the processed transmission / distribution line 11 to 13 in an open state under the control of the current measurement controller 150, The first to third current measuring units 141 to 143 are closed so as to enclose the processed transmission and distribution lines 11 to 13 at specific positions. That is, the first to third current measurement units 141 to 143 that are opened are closed so that both ends are brought into contact with each other as shown in Figs. When both ends are in contact with each other, the current measuring devices provided in the first to third current measuring parts 141 to 143 are closed, and the current generated in the processed transmission and distribution lines 11 to 13 is guided in an electromagnetic induction manner, . Here, the electromagnetic induction method means that when a magnet moves near a closed circuit or a magnetic field is changed by using another circuit in which a current flows, a current is passed through the closed circuit by an electromagnetic induction phenomenon.

The feature of the present invention is that each phase of the three-phase processed transmission and distribution lines 11 to 13 can be measured simultaneously with the load current using the first to third current measuring units 141 to 143. If the actual three-phase process transmission and distribution lines are individually measured for each phase, the accuracy becomes poor. This means that the measurement current can be changed according to the measuring time when the environment of the processed transmission line is changed. On the contrary, since the present invention simultaneously measures each phase of the three-phase processed transmission and distribution line, it is possible to precisely measure the load current on each phase of the processed transmission and distribution line while preventing problems that may vary depending on the environment change or measurement time .

The first to third current measuring units 141 to 143 measure currents in different phases (for example, R, S, T) of the three-phase processed transmission / distribution line. That is, it is assumed that the first current measuring unit 141 measures the R phase, the second current measuring unit 142 measures the S phase, and the third current measuring unit 143 measures the T phase. / RTI >

The R-phase measured current value measured by the first current measuring unit 141 is converted into an optical signal through the first electro-optic converter 144a and is converted into an optical signal through the first optical fiber 145a by the current measurement controller 150). The S phase measurement current value measured by the second current measuring unit 142 is converted into an optical signal through the second opto-optic converter 144b and the optical signal is transmitted through the second optical fiber 145b to the current measurement controller 150). The measured T-phase current value measured by the third current measuring unit 143 is converted into an optical signal through the third opto-optic converter 144c and measured by the optical signal through the third optical fiber 145c And transmitted to the controller 150.

The measured current collecting unit 157 of the current measuring controller 150 collects the current measurement optical signals of the measured processed transmission and distribution lines 11 to 13 and transfers the collected current measurement optical signals to the optical to electrical converter 158.

The optical / electrical converter 158 converts the optical signal transmitted from the measured current collecting unit 157 to each of the phases of the processed transmission / distribution lines 11 to 13 into an electrical signal corresponding thereto, that is, a measured current value, Converts the measured current value for each phase into digital current measurement data, and transmits the digital current measurement data to the current measurement controller 153 as the current measurement data for each phase.

The current measurement control unit 153 stores the current measurement data of the transferred processed transmission / distribution line in the memory 154 as information for determining the load current of the processed transmission / distribution line.

Current measurement data of the separately processed transmission / distribution line stored in the memory 154 is utilized to determine the unbalanced state of the later processed transmission / distribution line.

As described above, according to the present invention, it is difficult for a person to approach and measure by using a unmanned air vehicle such as a drone, and simultaneously measures the load current of the processed and distributed transmission line, The load current of the line can be measured.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It is obvious to those who have.

The present invention is effectively applied to a technique for measuring a load current of a processed transmission line by using an unmanned aerial vehicle.

110: unmanned aerial vehicle
120,150: Current measurement controller
121, 151: remote control signal receiving unit
122, 152: Mode setting section
123, 153: current measurement control section
124, 154: memory
125, 155: Position setting unit
126, 156:
127, 157: measuring current collecting unit
130, 140: current meter
131 to 133, 141 to 143: First to third current measuring units
134 to 136, 141a to 141c: first to third sensor drivers
137, 147: Driving signal transmission cable
138a to 138c: first to third measured value transmission cables
144a to 144c: First to third all-optical converters
145a to 145c: first to third optical fibers
158: optical / electric converter

Claims (7)

An apparatus for detecting load current of a processed / distributed line using an unmanned aerial vehicle,
An unmanned aerial vehicle equipped with a device for measuring the load current of the processed transmission line and traveling to the position of the processed transmission line through the flight;
A current measuring controller mounted on the unmanned aerial vehicle for controlling driving of a current measuring device and storing the detected current as information for determining a load current; And
And a current measuring unit for measuring a load current of the processed transmission / distribution line at a measurement position of the processed transmission / distribution line under the control of the current measurement controller and transmitting the measured load current to the current measurement controller,
Wherein the current meter simultaneously measures the current of each of the three-phase processed transmission and distribution lines.
The current measuring controller of claim 1, further comprising: a remote control signal receiver for receiving an adjustment signal wirelessly transmitted from a remote location; A mode setting unit for setting a manual mode for manually setting the position of the current measuring device in an automatic mode or in response to a remote control signal; A camera for acquiring image information by shooting; And controlling the position of the current meter by using the adjustment signal when the mode set by the mode setting unit is a manual mode and setting the position of the current meter by image analysis acquired by the camera when the set mode is the automatic mode A current measurement control unit for controlling the driving of the current measuring unit and the storage of the measured current; A position setting unit for setting the position of the current measuring unit under the control of the current measurement control unit; A meter driving unit for driving the current measuring unit under the control of the current measuring control unit and generating a driving signal for adjusting the length of the current measuring unit; A measurement current collecting unit for collecting the three-phase current measurement values measured by the current measuring unit, converting the three-phase current measurement values into a digital signal, and transmitting the digital signal to the current measurement control unit; And a memory for storing the measured current output from the current measurement control unit as load current determination information of the processed transmission / distribution line.
The current measuring device according to claim 1, wherein the current measuring device comprises: a driving signal transmitting cable for transmitting a sensor driving signal output from the current measuring controller; and a controller for controlling the first to third current measuring units according to a sensor driving signal transmitted through the driving signal transmitting cable. ) Or off (off) state, a first to a third sensor driver operating in an on or off state according to the operation of the first to third sensor drivers, First to third current measuring units for simultaneously measuring three-phase currents of the transmission / distribution line; First to third measured value transmission cables for transmitting the current values measured by the first to third current measurement units to the current measurement controller; A controller for controlling the length of the first and third current measuring units under the control of the current measuring controller, and a length adjuster for controlling the length of the first and third current measuring units under the control of the driver. Detection device.
The first to third sensor drivers may approach the processed transmission / distribution line in an open state under the control of the current measurement controller, and then the first to third current measurement units are wrapped around the processed / The first current measuring unit and the second current measuring unit are closed.
The current measuring controller of claim 1, further comprising: a remote control signal receiver for receiving an adjustment signal wirelessly transmitted from a remote location; A mode setting unit for setting a manual mode for manually setting the position of the current measuring device in an automatic mode or in response to a remote control signal; A camera for acquiring image information by shooting; And controlling the position of the current meter by using the adjustment signal when the mode set by the mode setting unit is a manual mode and setting the position of the current meter by image analysis acquired by the camera when the set mode is the automatic mode A current measurement control unit for controlling the driving of the current measuring unit and the storage of the measured current; A position setting unit for setting the position of the current measuring unit under the control of the current measurement control unit; A meter driving unit for driving the current measuring unit under the control of the current measuring control unit and generating a driving signal for controlling the length of the current measuring unit; A measuring current collecting unit for collecting the three-phase current measurement value measured by the current measuring unit; An optical / electrical converter for converting the three-phase current optical signal collected by the measuring current collecting unit into an electrical signal, converting the optical signal into a digital signal, and transmitting the digital signal to the current measurement controller; And a memory for storing the measured current output from the current measurement control unit as load current determination information of the processed transmission / distribution line.
The current measuring device according to claim 1, wherein the current measuring device comprises: a driving signal transmitting cable for transmitting a sensor driving signal output from the current measuring controller; and a controller for controlling the first to third current measuring units according to a sensor driving signal transmitted through the driving signal transmitting cable. ) Or off (off) state, a first to a third sensor driver operating in an on or off state according to the operation of the first to third sensor drivers, First to third current measuring units for simultaneously measuring three-phase currents of the transmission / distribution line; First to third electro-optical converters for converting the current values measured by the first to third current measuring units into optical signals; First to third optical fibers for transmitting the optical signals converted by the first to third pre-optical converters to the current measurement controller; A controller for controlling the length of the first and third current measuring units under the control of the current measuring controller, and a length adjuster for controlling the length of the first and third current measuring units under the control of the driver. Detection device.
The sensor driving unit closes the first to third current measuring units at a predetermined position after the first to third current measuring units approach the working / transmission line to the open state under the control of the current measuring controller And controls the first to third current measurement units to surround the processed transmission / distribution line.

Images