KR101630370B1

KR101630370B1 - Line diagnostic system

Info

Publication number: KR101630370B1
Application number: KR1020150153645A
Authority: KR
Inventors: 박준영; 신찬수; 김대현; 오중헌; 최호운
Original assignee: 씨앤씨에이드 주식회사
Priority date: 2015-11-03
Filing date: 2015-11-03
Publication date: 2016-06-14

Abstract

The present invention provides a line diagnostic system capable of determining a state of a transmission line by collectively measuring a sharing voltage, a temperature, and a vibration state of a line by supplying power using an induction magnet generated from a transmission line.

Description

Line diagnostic system {LINE DIAGNOSTIC SYSTEM}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a line diagnostic system, and more particularly, to a line diagnostic system for diagnosing problems occurring in a sleeve of a transmission line.

The characteristics of modern power-related facilities can be defined as large-scale, high-capacity, and interconnected systems. This inevitably leads to an increase in the size of the damage in the event of an accident. Especially, in case of an accident in power transmission field, which can be regarded as the aorta of the power system, the damage scale is very serious. Therefore, the importance of diagnosis, maintenance, maintenance and management of transmission lines is recognized as a very important issue.

Currently, there are 30,000 kilometers of transmission lines in Korea. However, in the past, the transmission line that has been constructed has become obsolete, and the transmission line is broken or the insulator is broken due to weather conditions such as external shock or lightning icy snow. KEPCO has figured out about 40 cases last year.

Among them, there are 50,000 transmission line connection points (straight sleeves and repair sleeves) used for interconnection of electric wires during transmission line construction. As of 2010, there are 50,000 disconnection incidents at the transmission line connection points, 19% of the causes are analyzed, and when the breakage is analyzed by cause, the construction defect accounts for an overwhelming percentage of 80%.

Effective Connection at a Limited Budget After performing various diagnoses on the connection point in order to proceed with the wire replacement business, priority replacement work for serious connection points is underway. Therefore, various diagnostic techniques for evaluating the integrity of connection points have been introduced, and X-ray diagnosis, inspection of wire insertion amount, thermal imaging diagnosis. Eccentric measurement diagnosis, diagnosis using a robot, and even a technique of drilling a hole in a connecting sleeve to observe an endoscope are used, but the efficiency and accuracy are unsatisfactory.

Therefore, accurate diagnosis and maintenance standards for straight sleeves and repair sleeves of power transmission lines are in urgent need. In addition, there is a problem that disconnection occurs due to various reasons, which can cause serious accidents.

The straight sleeves of the transmission line are used to interconnect the wires when constructing the transmission line. Among them, the sleeve for connecting the ACSR (Aluminum Cable Stein Reinforced) cable is composed of an aluminum sleeve and a steel wire sleeve. The aluminum sleeve connects the aluminum portion of the ACSR wire and the steel wire sleeve connects the steel wire portion of the ACSR wire.

When the steel wire sleeve is eccentrically installed, the transmission line is disconnected by the eccentricity.

In order to prevent this phenomenon, it is necessary to thoroughly perform construction and thorough maintenance after construction.

Currently, the usual diagnostic methods for connection points constructed with straight sleeves, repair sleeves, etc. are visual inspection, eccentric measurement inspection, and X-ray measurement inspection.

In Korea, due to the demand for improvement of power supply reliability through prevention of transmission line failure, 'Establishment of Transmission Transmission Operation Standard 2011.05.26.' [6]] was established to control the degree of eccentricity of straight sleeve And thermal imaging camera and wire inspecting device are used to detect eccentric sleeves.

The diagnostic method based on the naked eye is largely a method of diagnosing using optical equipment and thermal imaging equipment. In the case of optical equipment, it is a level that checks the appearance by using a high magnification telescope, and there is almost no discrimination power. It can be confirmed that the temperature of the sleeve is increased by the increase of the leakage current. For this reason, KPS is examining whether it is overheating by applying the cable connection inspection criteria of KPS "Transmission Maintenance Practice." However, due to various external factors such as different emissivity standard, measurement distance, power line load, light reflection, temperature, Its accuracy is poor. Due to these problems, it is considered that there is a need to improve the method of determining whether or not the connection point is overheated by the current inspection standard.

Especially, in case of inserting wire inspecting machine, the maximum eccentricity for eccentric sleeve determination is 25 mm, but the error according to the skill of the measurer is 33 mm and the error of the inspectors itself is more than 15 mm, and the error is larger than the eccentricity allowance

In recent years, X-ray nondestructive inspection method has been introduced and accurate eccentricity can be known to provide the highest level of data. However, the use of radiation requires a lot of constraints, highly skilled manpower, and low diagnostic efficiency against input resources .

Diagnosis based on such manpower is difficult because continuous continuous diagnosis is impossible and safety risk is always present. It is difficult to work, diagnosis efficiency is low, continuous real-time diagnosis is impossible, and skilled manpower is getting worse due to difficulty of work. As a solution to this problem, the robot is diagnosed as a robot or a vehicle capable of remote diagnosis. However, the robot is not able to overcome the inherent limit.

In order to overcome the limitations of the diagnostic method by the above-mentioned manpower, various methods are being tried in the world, among which a system for diagnosing a robot type that can be remotely adjusted is mainly implemented.

Actually, the diagnostic robot can travel along the transmission line, and it can be used for other tasks by providing a variety of diagnostic equipment in addition to the diagnosis of the connection point including the sleeve.

In addition, since it is not a diagnosis by manpower, the objectivity and accuracy of data are greatly improved at the time of diagnosis. Although it is possible to transmit limited data in real time, it is difficult to solve various obstacles on the transmission line shown in Fig. 5 below, whether it is possible to move the span of different transmission towers, and how to apply it according to the number of transmission lines.

Korean Unexamined Patent Publication [10-2009-0032312] discloses an ACSR wire sleeve testing machine.

Korean Published Patent [10-2009-0032312] (Published on April 01, 2009)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a method and apparatus for generating a voltage using an induction magnet generated in a transmission line, So that the state of the transmission line can be determined.

The objects of the embodiments of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description .

According to an aspect of the present invention, there is provided a line diagnostic system including: a self power acquisition unit (100) for generating a voltage using an induction magnet generated in a transmission line (10); A sensor unit 200 that uses the voltage generated from the self-power source acquisition unit 100 as a power source and measures the sharing voltage, temperature, and vibration state of the line; And a communication unit 300 using the voltage generated from the self power source acquisition unit 100 as a power source and transmitting the measured data from the sensor unit 200 to the outside.

The self-power-source acquiring unit 100 includes a pick-up coil unit 110 for generating an induction magnetic field voltage generated in the transmission line 10; A rectifier circuit unit 120 for converting the generated AC electromotive force into DC by induction magnetism introduced into the pickup coil unit 110; And a constant voltage circuit unit 130 for converting the DC electromotive force converted from the rectifying circuit unit 120 into a power source to be used.

In addition, the self-power-source acquisition unit 100 includes a battery unit 140 for storing power converted from the constant-voltage circuit unit 130; And a charging circuit unit 150 for applying a voltage necessary for charging the battery unit 140.

The pick-up coil part 110 includes a core part 111 made of a magnetic material; And a core part (112) for winding the core part (111), wherein the core part (111) is formed by coating a directional silicon steel sheet and a stress sensitivity curve generated thereby along the rolling direction, And a heat treatment technique for rearranging the structure is applied.

The self-power-supply unit 100 is configured such that the core part 111 is divided into two parts with reference to the transmission line 10, the coil part 112 is wound on one of the two core parts 111 divided into two parts, A housing 160a that encloses the core portion 111 formed with the portion 112 and a housing 160b that surrounds the core portion 111 where the core portion 112 is not formed are formed in a C- And a fastening part 170 to fasten the fastening part 170 so as to surround the fastening part 10.

The rectifying circuit part 120 and the constant voltage circuit part 130 are provided inside the housing 160a surrounding the core part 111 formed with the coil part 112. The coil part 112 is formed And an output terminal 190 is formed on the outside of the housing 160a surrounding the core portion 111. [

In addition, the magnetic core material of the pick-up coil part 110 removes the pinning sites that interfere with at least one of the magnetic domains selected from among impurities, inclusions and residual stresses for optimization of magnetic properties, And an alloy obtained by removing the generated surface closure domain is applied.

The circuit used in the self-power-supply obtaining section 100 is designed so that when the rectified DC voltage is higher than the set reference voltage due to a high primary current, the circuit is designed not to be output, do.

In addition, the measured data from the sensor unit 200 is received through the communication unit 300 to determine the state of the transmission line 10, and at least one of the shared voltage, temperature, And a status determining unit (900) for diagnosing an abnormality if the abnormality is detected.

In addition, the state determining unit 900 determines the state of the transmission line 10 based on a big data analysis or a regression analysis.

According to the line diagnosing system of the embodiment of the present invention, the power source necessary for sensing and communication is generated and supplied from the self power acquisition unit, which incorporates the energy harvesting technique, so that a separate energy supply source is not required, There is a semi-permanent use effect.

Further, there is an effect that the rated voltage required for sensing and communication can be supplied through the rectifying circuit section and the constant voltage circuit section.

In addition, there is an effect that the rated voltage required for sensing and communication can be more stably supplied through the battery section and the charging circuit section.

Also, by applying the heat treatment technique in which the core portion is coated with the directional silicon steel sheet and the stress sensitivity curve generated thereby is rearranged along the rolling direction,

Further, it is easy to use the fastening portion to provide a housing formed in a "C" shape facing the transmission line so as to surround the transmission line.

Further, since the output terminal is formed in the housing having the coil portion, the structure of the circuit and the line can be simplified, thereby reducing manufacturing cost and maintenance cost.

Further, it is possible to prevent the loss caused by the magnetic material by eliminating the factors impeding the movement of the magnetic domain, and removing the surface proximity lattice generated by the compressive stress.

Further, by using the switching circuit, it is possible to supply stable power regardless of the current of the primary side cable.

In addition, by selecting a reference value by a big data analysis or a regression analysis, it is possible to establish a more accurate judgment and maintenance standard.

Further, diagnosis efficiency can be drastically reduced due to improvement in diagnostic efficiency and accuracy.

In addition, there is an effect of minimizing the damage of physical and artificial resources by preventing an accident through power system diagnosis.

In addition, it has the effect of improving the external image by reducing civil complaints caused by the improvement of power quality.

In addition, there is an effect of securing an efficient and reliable diagnosis technology.

In addition, there is an effect that a diagnostic technique with high caustic ratio can be secured.

In addition, there is an effect that the convenience of the diagnostic performer can be increased.

1 is a block diagram of a line diagnostic system in accordance with an embodiment of the present invention;
FIG. 2 is a conceptual diagram of an embodiment of the self-powered acquisition unit of FIG. 1;
FIG. 3 is a conceptual view of the housing shown in FIG. 2;
4 is a conceptual diagram of another embodiment of the self-powered acquisition unit of FIG.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, .

On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the term "comprises" or "having ", etc. is intended to specify the presence of stated features, integers, steps, operations, elements, parts, or combinations thereof, And does not preclude the presence or addition of one or more other features, integers, integers, steps, operations, elements, components, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the meaning in the context of the relevant art and are to be construed as ideal or overly formal in meaning unless explicitly defined in the present application Do not.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concept of the term appropriately in order to describe its own invention in the best way. The present invention should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention. Further, it is to be understood that, unless otherwise defined, technical terms and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Descriptions of known functions and configurations that may be unnecessarily blurred are omitted. The following drawings are provided by way of example so that those skilled in the art can fully understand the spirit of the present invention. Therefore, the present invention is not limited to the following drawings, but may be embodied in other forms. In addition, like reference numerals designate like elements throughout the specification. It is to be noted that the same elements among the drawings are denoted by the same reference numerals whenever possible.

FIG. 1 is a block diagram of a line diagnostic system according to an embodiment of the present invention. FIG. 2 is a conceptual diagram of the self power acquisition unit of FIG. 1, FIG. 4 is a conceptual diagram according to another embodiment of the self-powered acquisition unit of FIG.

Although energy-related budgets are rapidly increasing worldwide, and the demand for energy quality improvement and efficient utilization technology is increasing, there is no complex diagnosis system for the diagnosis of electric power facilities, and there is no electric power facility diagnosis standard and operation standard.

Assessing the soundness of power facilities is essential for improving power efficiency and quality, preventing accidents, and improving the public image.

Accordingly, the present invention is intended to overcome the above-mentioned disadvantages of the above-described various diagnostic methods and to establish a worldwide diagnostic transmission line diagnostic standard by using a line diagnostic system with greatly improved efficiency and reliability.

In other words, to overcome the limitations of the conventional diagnosis methods, the leakage current diagnosis system and its judgment system technology using the induction magnetic field of the transmission line were investigated to completely eliminate the accidents at the connection points between the domestic and overseas transmission lines I want to.

1, the line diagnostic system according to an exemplary embodiment of the present invention includes a self power acquisition unit 100, a sensor unit 200, and a communication unit 300. As shown in FIG.

The line diagnostic system according to an embodiment of the present invention is fixedly installed in a transmission line and operates. The power source required for sensing and communication is connected to a self-power acquisition unit 100 that incorporates an energy harvesting technique So that a separate energy supply source is not required and semi-permanent use is possible.

The self-power-source acquiring unit (100) generates a voltage by using an induction magnet generated in the transmission line (10).

Transmission line refers to an electric line connecting between a power plant and a power distribution substation for wide-area power transmission. In Korea, it is generally used to transmit more than 154,000 volts.

The self power source acquisition unit 100 is installed to surround the power transmission line 10 and generates an electric power by energy harvesting the induced magnetic field generated in the power transmission line 10. Energy harvesting will be explained later.

The sensor unit 200 uses the voltage generated from the self-power-source acquisition unit 100 as a power source, and measures the sharing voltage, temperature, and vibration state of the line.

The sensor unit 200 is provided on the transmission line 10 and measures the sharing voltage, temperature and vibration state of the line, and a power source for operating the sensor unit 200 is connected to the power source line acquisition unit 100 It is supplied. At this time, the sensor unit 200 can measure the present sharing voltage, temperature, and vibration state in real time.

In other words, the reliability of the line diagnosis can be improved by performing a complex diagnosis in consideration of both the sharing voltage, the temperature and the vibration state of the line of the straight sleeve and the maintenance sleeve.

The communication unit 300 uses the voltage generated from the self-power source acquisition unit 100 as a power source and transmits the measured data from the sensor unit 200 to the outside.

The communication unit 300 transmits the measured data from the sensor unit 200 to the outside, and the power source for operating the communication unit 300 is supplied from the self power source acquisition unit 100. At this time, the communication unit 300 can communicate with the sensor unit 200 in a wired or wireless manner. In addition, it is also possible to perform a signal processing for transmitting a signal received from the sensor unit 200 to the outside, and a signal processing unit (not shown) may be separately provided.

That is, it is possible to check the live lines of the linear sleeves and the maintenance sleeves on the line based on the sharing voltage, temperature and vibration state of the line confirmed through the communication unit 300, thereby realizing diagnosis in real time, , Prevention of power outages and management for improving power quality can be efficiently performed. Through diagnosis of straight sleeves and maintenance sleeves, it is possible to reduce power outage, improve power quality, and prevent accidents.

In other words, by maximizing the use of straight sleeves and maintenance sleeves while reducing power plant accidents and outage rates, the power quality of the power system can be increased, extending the life of the equipment and reducing costs.

For example, by not replacing good connection points, additional operating costs can be reduced. If the eccentricity measuring error of the connecting sleeve is reduced to 2 mm or less, the operating cost for three years can be reduced by about 100 billion won have.

2, the self-power obtaining unit 100 of the line diagnostic system according to an embodiment of the present invention includes a pick-up coil unit 110, a rectifier circuit unit 120, and a constant voltage circuit unit 130).

A pick-up coil unit 110 generates an induced magnetic field voltage generated in the transmission line 10.

The pick-up coil part 110 includes a core part 111 made of a magnetic material and a coil part 112 wound around the core part 111. The core part 111 is made of a silicon- The coating and the stress sensitivity curve generated thereby are subjected to a heat treatment technique in which the magnetic domain structure of the surface is rearranged along the rolling direction.

In other words, the core portion 111 is formed of a magnetic material (magnetic material), and the pickup core portion 110 is formed by including the coil portion 112 spirally wound around the core portion 111.

The rectifying circuit unit 120 converts the AC electromotive force generated by the induction magnetic flux into the pickup coil part 110 into DC.

When induction magnetic flux flows into the pick-up coil part 110, AC electromotive force is generated and converted into a DC voltage to convert it into a desired type of power source. This is because the DC voltage is advantageous rather than the AC voltage in order to charge the battery or maintain the output of the rated voltage.

The constant voltage circuit unit 130 converts the DC electromotive force converted from the rectifying circuit unit 120 into a power source to be used.

That is, the constant voltage circuit unit 130 converts the DC electromotive force converted from the rectifying circuit unit 120 into a power source to be used. For example, if the power source required to drive the sensor is DC 12 V, it outputs a DC 12 V voltage.

Although the DC voltage is used in the above example, the present invention is not limited thereto. It is needless to say that the constant voltage circuit unit 130 may convert the power source to the AC voltage.

If DC and AC are to be used together, the constant voltage circuit unit 130 may include both a DC-DC converter and a DC-AC converter.

In other words, the AC electromotive force generated by the induction magnetic flux flowing into the pick-up coil part 110 can be converted into DC through the rectifying circuit part 120 and changed to a power to be used through the constant voltage circuit part 130, The power source can supply the power source such as the sensor unit 200 and the communication unit 300 to a required place.

3, the self-power obtaining unit 100 of the line diagnostic system according to an exemplary embodiment of the present invention is configured such that the core unit 111 is divided into two parts based on the transmission line 10, A housing 160a surrounding the core portion 111 with the core portion 112 wound thereon with the core portion 111 is formed with a core portion 111 having no coil portion 112, And a fastening part 170 is formed so as to fasten the transmission line 10 so as to enclose the transmission line 10.

In other words, the housings 160a and 160b are divided into two in order to fasten the transmission line 10 so as to enclose the transmission line 10 and can be installed so as to surround the transmission line 10 by fastening the transmission lines 10, have.

At this time, the core portion 111 and the housings 160a and 160b may be formed in a facing "C" shape, and a coil is not wound on one core portion 111 and a coil is not wound on the other core portion 111 The coil is wound.

In the above example, the coil is wound only on one of the core parts 111, but the present invention is not limited thereto. It is needless to say that the coil may be wound on both of the ports when an external power supply port needs to be extended.

The self power supply unit 100 includes the rectifier circuit unit 120 and the constant voltage circuit unit 130 in a housing 160a surrounding the core unit 111 formed with the coil part 112 And an output terminal 190 is formed on the outside of the housing 160a surrounding the core portion 111 having the coil portion 112 formed thereon.

When the output terminal 190 is formed on only one side, the circuit and the line are provided on one side. This simplifies the structure. If the output terminal 190 is later terminated, the core portion 111 on which the coil portion 112 is formed It is also possible to replace only the enclosing housing 160a, thereby facilitating maintenance.

The present invention is not limited thereto. In the case where the port to be supplied with power is to be extended, the output terminal 190 is connected to both the output terminal 190 and the output terminal 190, Of course, be formed.

4, the self-power obtaining unit 100 of the line diagnostic system according to the embodiment of the present invention may further include a battery unit 140 and a charging circuit unit 150. [

The battery unit 140 stores the converted power from the constant voltage circuit unit 130.

The charging circuit unit 150 applies a voltage required for charging the battery unit 140.

It is possible to supply power to the output terminal 190 via the rectifying circuit portion 120 and the constant voltage circuit portion 130 as shown in FIG. 3, but the current of the transmission line (primary side) And it may be difficult to uniformly provide the rated voltage to the output terminal 190 so that it is preferable to further include the battery unit 140 and the charging circuit unit 150.

Preferably, the battery maintains the voltage required to charge the battery according to the battery charging characteristics. To this end, the charging circuit unit 150 applies a voltage required for charging the battery to the battery unit 140.

The power stored in the battery unit 140 is discharged from the output terminal 190 by the constant voltage circuit unit 130 because the constant voltage circuit unit 130 must be closed in order to supply power to the output terminal 190. [ And the voltage is applied to the output terminal 190.

In other words, the AC electromotive force generated by introducing the induction magnetic force from the pickup coil part 110 is converted into DC through the rectifying circuit part 120, and the charging circuit part 150 and the battery part 140 are connected to each other through the constant- And the power stored in the battery unit 140 is turned into a power source to be used by the constant voltage circuit unit 130 to supply power to the sensor unit 200 and the communication unit 300. [

In this case, it is needless to say that a power source converted into DC through the rectifying circuit unit 120 may be directly supplied to the charging circuit unit 150.

The magnetic core material of the pick-up coil part 110 eliminates the pinning sites that interfere with at least one of the magnetic domains selected from among impurities, inclusions and residual stresses for optimization of magnetic properties, And a high alloy in which a surface closure domain is removed is applied.

The factors contributing to the loss of magnetic material are hysteresis loss, eddy current loss, residual loss, etc. The countermeasure of this is to coat the directional silicon steel plate and to develop the stress sensitivity curve by rolling the magnetic domain structure along the rolling direction Heat treatment techniques can be used.

In order to optimize the magnetic properties, it is necessary to remove the pinning sites such as impurities, inclusions, residual stresses and the like and to remove the surface closure domain generated by the compressive stress .

The circuit used in the self-power-source acquiring unit 100 is designed so that when the rectified DC voltage is higher than the set reference voltage because the primary side current is high, the output is designed not to be output and is output again from the reference voltage ).

An ideal model of the energy harvesting circuit is to convert the electromotive force obtained through magnetic flux to DC to supply a stable load irrespective of the current of the primary side cable.

However, the current on the primary side may fluctuate with time, and thus the electromotive force of the secondary coil also fluctuates. Even if a constant voltage circuit is employed, the output voltage will fluctuate depending on the load, and the difference in the output electromotive force and the magnitude of the load will cause the heat of the core.

Therefore, in the circuit used in the self-powered device through the energy harvesting, the switching circuit is used so that the primary side current is high and the rectified DC voltage is designed not to be output when the DC voltage becomes higher than the set reference voltage. It is preferable to employ a timing method.

In other words, by converting the electromotive force obtained through the flux using a switching circuit to DC, it is possible to secure an energy harvesting technique capable of supplying a stable power regardless of the current of the primary cable.

The controller 300 receives the measured data from the sensor unit 200 through the communication unit 300 and determines the state of the transmission line 10. If at least one of the line sharing voltage, And a status determination unit 900 for diagnosing abnormalities.

That is, the state determination unit 900 can diagnose an abnormality (necessity of replacement) based on data (sharing voltage, temperature, and vibration) transmitted through the communication unit 300. At this time, not only the abnormality of the connection points (straight sleeves and maintenance sleeves) to the transmission line but also the replacement timing can be inferred, and it is also possible to send a replacement notification signal when replacement is necessary.

The state determination unit 900 may be provided inside the housings 160a and 160b or may be provided outside the housings 160a and 160b.

When installed inside the housings (160a, 160b), it can be operated in a manner that it is fixedly installed in a transmission line connection point (linear sleeve and maintenance sleeve). At this time, information necessary for monitoring can be transmitted to a controllable facility.

(Straight sleeves and maintenance sleeves) which are to be operated by a mobile operation and are required to be inspected when they are provided outside the housings 160a and 160b and are connected to the power transmission line connecting portions (straight sleeves and maintenance sleeves) It is also possible to transmit information on voltage, temperature and vibration.

In other words, it can be fixedly installed in a place where real-time monitoring is required, and can be operated in a mobile place in a place where intermittent monitoring is required according to a predetermined period.

The state determination unit 900 may be configured to determine the state of the transmission line 10 based on a big data analysis or a regression analysis.

The state determination section 900 may be used to determine the state of the transmission line connection portion (linear sleeve and maintenance sleeve) (eccentricity degree, corrosion degree, etc.) based on the sharing voltage, temperature, Can be generated using regression analysis.

This is to diagnose the line more precisely by using the complex sensing value of the line sharing voltage, temperature and vibration.

This is to ensure the competitiveness of power equipment diagnosis and maintenance and repair management technologies that are expected to grow steadily among energy related fields by establishing more accurate judgment and maintenance standards.

At this time, the big data analysis or the regression analysis can use a cloud server.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

10: Transmission line
100:
110: pick-up coil part
111: self-centering part 112: coil part
120: rectification circuit part 130: constant voltage circuit part
140: battery unit 150: charging circuit unit
160a, 160b: Housing 170:
190: Output terminal
200:
300:
900: state judgment section

Claims

A self power source acquisition unit (100) for generating a voltage using an induction magnet generated in a transmission line (10);
A sensor unit 200 that uses the voltage generated from the self-power-source obtaining unit 100 as a power source and is installed in a linear sleeve or a maintenance sleeve on the line, and measures a sharing voltage, a temperature, and a vibration state of the linear sleeve or the maintenance sleeve; ;
A communication unit 300 that uses the voltage generated from the self power source acquisition unit 100 as a power source and transmits the measured data from the sensor unit 200 to the outside; And
The measured data from the sensor unit 200 is received through the communication unit 300 to determine the degree of eccentricity or degree of corrosion of the linear sleeve or the maintenance sleeve on the transmission line 10, A state judging unit (900) for diagnosing an abnormality if at least one selected is out of reference value;
/ RTI >
The circuit used in the self-power source acquisition section 100
A switching circuit is used so that when the rectified DC voltage is higher than the set reference voltage because the primary side current is high,
The self power source acquisition unit 100
A pick-up coil unit 110 for generating an induced magnetic field voltage generated in the transmission line 10;
A rectifier circuit unit 120 for converting the generated AC electromotive force into DC by induction magnetism introduced into the pickup coil unit 110; And
A constant voltage circuit unit 130 for converting the DC electromotive force converted from the rectifying circuit unit 120 into a power source to be used;
&Lt; / RTI >
The self power source acquisition unit 100
A battery unit 140 for storing the converted power from the constant voltage circuit unit 130; And
A charging circuit unit 150 for applying a voltage necessary for charging the battery unit 140;
Wherein the line diagnostic system further comprises:

delete

The method according to claim 1,
The pick-up coil part 110
A core portion 111 made of a magnetic material;
A coil part (112) for winding the core part (111);
, Wherein:
The core (111)
Wherein a heat treatment technique is applied to coat the directional silicon steel sheet and rearrange the magnetic susceptibility structure of the surface along the rolling direction of the stress sensitivity curve generated thereby.

5. The method of claim 4,
The self power source acquisition unit 100
The core portion 111 is divided into two portions with respect to the transmission line 10 and the coil portion 112 is wound on one of the two core portions 111,
A housing 160a surrounding the core portion 111 formed with the coil portion 112 and a housing 160b surrounding the core portion 111 where the coil portion 112 is not formed are formed in a C- And a fastening part (170) to fasten the cable (10) so as to surround the cable (10).

6. The method of claim 5,
The self power source acquisition unit 100
The rectifying circuit part 120 and the constant voltage circuit part 130 are provided inside the housing 160a surrounding the core part 111 formed with the coil part 112, And an output terminal (190) is formed outside the housing (160a) surrounding the housing (111).

The method according to claim 1,
The magnetic core material of the pick-up coil part 110
An alloy that eliminates the pinning sites that interfere with at least one of the magnetic domains selected from among impurities, inclusions, and residual stresses and removes the surface closure domain generated by the compressive stress, Is applied to the line diagnostic system.

delete

The method according to claim 1,
The state determination section 900
And the state of the transmission line (10) is determined on the basis of a big data analysis or a regression analysis.