KR102659945B1 - Apparatus and system for detecting partial discharge of gas insulated switchgear - Google Patents

Abstract

A GIS partial discharge detection device according to an embodiment of the present disclosure includes a sensor unit disposed on the inner surface of the GIS and a control unit that controls the sensor unit, the sensor unit includes an infrared sensor and a visible light sensor, and the control unit includes a sensor unit. It may include a power supply unit that supplies power to the unit, a memory that stores information sensed by the sensor unit, and a processor that processes the sensed information.
The GIS partial discharge detection system according to an embodiment of the present disclosure includes a GIS partial discharge detection device and a management server disposed in the GIS, and the GIS partial discharge detection device is a sensor disposed on the inner surface of the GIS to sense partial discharge. It includes a control unit that supplies power to the unit and the sensor unit, and stores, processes, and transmits the information sensed by the sensor unit to the management server. The management server receives the information sensed from the GIS partial discharge detection device and manages the GIS part. The discharge is monitored, and the sensor unit may include an infrared sensor and a visible light sensor.

Description

GIS partial discharge detection device and system {APPARATUS AND SYSTEM FOR DETECTING PARTIAL DISCHARGE OF GAS INSULATED SWITCHGEAR}

This disclosure relates to devices and systems for detecting partial discharge in GIS.

Partial discharge accounts for the largest portion of GIS failures. Partial discharge is a local discharge phenomenon that occurs in places other than between electrodes, which deteriorates the internal insulation performance of the GIS and leads to internal failure. The conventional method of detecting partial discharge was to insert a UHF sensor into the internal inspection window of the GIS or attach the UHF sensor to a GIS component such as a spacer. To measure internal partial discharge of GIS, a method is used to install and monitor a diagnostic system on-line, or to have a preventive diagnostician periodically diagnose partial discharge using a portable laptop and a partial discharge measurement device.

In addition, when partial discharge occurs due to internal deterioration of the GIS, various types of side products are generated, so the presence or absence of internal partial discharge can be diagnosed using equipment that can diagnose according to the characteristics of the side products. Partial discharge diagnosis methods include electrical detection, ultrasonic detection, chemical detection, and electromagnetic wave detection, depending on the characteristics of each side product. Currently, GIS partial discharge diagnosis using electromagnetic wave detection method is being used.

The purpose of this disclosure is to disclose a device and system that detects partial discharge of a GIS by deploying a complex sensor inside the GIS.

A GIS partial discharge detection device according to an embodiment of the present disclosure includes a sensor unit disposed on the inner surface of the GIS and a control unit that controls the sensor unit, the sensor unit includes an infrared sensor and a visible light sensor, and the control unit includes a sensor unit. It may include a power supply unit that supplies power to the unit, a memory that stores information sensed by the sensor unit, and a processor that processes the sensed information.

The GIS partial discharge detection system according to an embodiment of the present disclosure includes a GIS partial discharge detection device and a management server disposed in the GIS, and the GIS partial discharge detection device is a sensor disposed on the inner surface of the GIS to sense partial discharge. It includes a control unit that supplies power to the unit and the sensor unit, and stores, processes, and transmits the information sensed by the sensor unit to the management server. The management server receives the information sensed from the GIS partial discharge detection device and manages the part of the GIS. The discharge is monitored, and the sensor unit may include an infrared sensor and a visible light sensor.

According to various embodiments of the present disclosure, GIS partial discharge can be easily measured by detecting various elements of partial discharge from various angles.

In addition, according to various embodiments of the present disclosure, a detection device deployed in a GIS measures partial discharge in real time and transmits sensing information wirelessly, making partial discharge inspection possible without a diagnostic personnel visit to the site.

In addition, according to various embodiments of the present disclosure, partial discharge is measured using a plurality of sensors, so it is possible to precisely detect the location where partial discharge occurs inside the GIS.

Furthermore, by using ROI (Region of Interest) in image processing, data and resource power consumed for GIS partial discharge real-time diagnosis can be saved.

1 is a schematic diagram showing a system according to one embodiment of the present disclosure.
Figure 2 is a diagram showing the configuration of a device according to an embodiment of the present disclosure.
Figure 3 is a schematic diagram showing a sensor sensing partial discharge according to an embodiment of the present disclosure.
Figure 4 is a schematic diagram showing a plurality of sensors sensing partial discharge according to an embodiment of the present disclosure.
Figure 5 is a schematic diagram showing a sensor according to an embodiment of the present disclosure processing an image using ROI.
Figure 6 is a diagram showing a location where a device according to an embodiment of the present disclosure is placed.
Figure 7 is a diagram showing the operation of a system according to an embodiment of the present disclosure.

Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings. When describing with reference to the drawings, identical or corresponding components will be given the same reference numerals and duplicate descriptions thereof will be omitted.

In the following embodiments, terms such as first and second are used not in a limiting sense but for the purpose of distinguishing one component from another component. Singular expressions include plural expressions unless the context clearly dictates otherwise. Terms such as include or have mean that the features or components described in the specification exist, and do not preclude the possibility of adding one or more other features or components.

In the following embodiments, when membranes, regions, components, etc. are connected, not only are the membranes, regions, and components directly connected, but also other membranes, regions, and components are interposed between the membranes, regions, and components. This includes cases where it is indirectly connected. In addition, when a part of a membrane, area, component, etc. is said to be on or on another part, it includes not only the case where it is directly on top of the other part, but also the case where another membrane, area, component, etc. is interposed between them. do.

In cases where an embodiment can be implemented differently, a specific process sequence may be performed differently from the described sequence. For example, two processes described in succession may be performed substantially at the same time, or may be performed in an order opposite to that in which they are described.

In the drawings, the sizes of components may be exaggerated or reduced for convenience of explanation. For example, the size and thickness of each component shown in the drawings are arbitrarily determined for convenience of explanation, and the present invention is not necessarily limited to what is shown.

In this disclosure, the term 'sensor' can broadly refer to any means that can detect any physical or chemical property or phenomenon. The use, function, material, etc. are not limited by the term.

Conventional GIS partial discharge inspection is performed when a signal that a partial discharge has occurred is received in the diagnostic system, or when a diagnostician visits regularly, and the partial discharge signal is analyzed and a detailed inspection is conducted through an emergency ceasefire depending on the intensity of the partial discharge. It is done in a way that is carried out. In the case of on-site detailed inspection, partial discharge failure points may be discovered, but in some cases, it may be difficult to find internal failure parts of the sealed GIS even through expert inspection. In addition, when an inspector performs measurements with a team of two, the time required to measure partial discharge is 30 minutes to 1 hour per GIS BAY due to the large number of measurement targets, resulting in an excessive need to secure diagnostic personnel. In order to improve this problem, a GIS preventive diagnosis system has been introduced and is in operation, but the investment cost for installing the diagnosis system is 750 million won per 154kV substation, which creates a new problem of increased investment cost.

In addition, in some cases, even if the GIS partial discharge signal is weak or there is no signal, insulation breakdown progresses and a power outage occurs. If a high-accuracy diagnosis is not performed, it may lead to a breakdown and initially increase facility damage, and further damage from the power outage. It can occur up to Therefore, high-accuracy diagnosis of GIS partial discharge signals is required, and for this purpose, the time and cost requirements are high when solving the problem with professional training on analysis and interpretation of partial discharge signals. Therefore, there is a need for a method that can easily detect GIS partial discharge with high accuracy and accurately detect the location of occurrence without additional training of professional personnel.

Below, a GIS partial discharge detection device and system according to various embodiments of the present disclosure are disclosed. In various embodiments of the present disclosure, a detection device and system that can analyze various physical effects that occur in partial discharge are disclosed. According to various embodiments of the present disclosure, GIS partial discharge can be easily measured by detecting various elements of partial discharge from various angles.

More specifically, the GIS partial discharge detection device according to one embodiment is equipped with a sensor that can look into the inside of the GIS 10, such as a camera, and can visually detect the occurrence of partial discharge. Alternatively, an infrared camera can be used to detect heat generated by partial discharge, and abnormal signals within the GIS can also be detected by sensing light, sound, and vibration. Furthermore, the GIS partial discharge detection device according to one embodiment can receive a sensing signal and transmit it to the management server. Sensing signals can be collected at the SCADA power distribution station through an on-site aggregation system.

First, the GIS partial discharge detection system 100 will be described with reference to FIG. 1. Figure 1 is a schematic diagram showing a GIS partial discharge detection system 100 according to an embodiment of the present invention. The GIS partial discharge detection system 100 according to an embodiment may include a GIS partial discharge detection device 200 and a management server 300.

The GIS partial discharge detection device 200 may be configured in the GIS (10). At least part of the GIS partial discharge detection device 200 is configured inside the GIS 10 and can sense partial discharge occurring in the GIS 10. The GIS partial discharge detection device 200 may transmit sensing information to the management server 300. Sensing information may include information about partial discharge.

The management server 300 may receive sensing information from the GIS partial discharge detection device 200. Sensing information may include information about partial discharge. The management server 300 can comprehensively determine the partial discharge of the GIS 10 from a distance based on the received sensing information. The management server 300 can identify the occurrence of partial discharge of the GIS 10 in real time and manage the status of the GIS 10.

The configuration of the GIS partial discharge detection device 200 will be described in detail with reference to FIGS. 2 and 3. FIG. 2 is a diagram showing the configuration of the GIS partial discharge detection device 200, and FIG. 3 is a schematic diagram showing a sensor sensing partial discharge according to an embodiment of the present disclosure. The GIS partial discharge detection device 200 according to an embodiment may include a sensor unit 210 and a control unit 220.

The sensor unit 210 according to one embodiment can detect partial discharge of the GIS (10). The sensor unit 210 may be provided in the GIS (10). More specifically, each component of the sensor unit 210 may be placed inside the GIS 10 or in a configuration of the GIS 10. For example, some sensors of the sensor unit 210 may be placed on spacers. The sensor unit 210 according to one embodiment may include an infrared sensor 212, a visible light sensor 214, a sound sensor 216, and a vibration sensor 218.

The control unit 220 according to one embodiment may control the sensor unit 210 to fully perform partial discharge sensing of the GIS. For example, the control unit 220 may supply power to the sensor unit 210, store sensing information, process the sensing information, and transmit the sensing information to the outside. The control unit 220 according to one embodiment may include a processor 222, a transceiver 224, a power unit 226, and a memory 228.

The control unit 220 may preferably be provided outside the GIS 10. In one embodiment, when the control unit 220 is provided outside the GIS 10, the control unit 220 may be connected by wire to a sensor of the sensor unit 210 disposed inside the GIS 10, etc. The arrangement of the control unit 220 or the connection between the control unit 220 and the sensor unit 210 will be described in detail below with reference to FIG. 6.

The GIS partial discharge detection device 200 according to an embodiment is capable of analyzing various physical effects of partial discharge from various angles. The GIS partial discharge detection device 200 can detect heat, light, sound, vibration, etc. generated by partial discharge. The GIS partial discharge detection device 200 may include an infrared sensor 212 and/or a visible light sensor 214 that can observe light and heat inside a dark GIS.

Referring to FIG. 3, the sensor that constitutes the sensor unit 210 will be described in detail. The sensor unit 210 can detect heat, light, sound, and/or vibration of partial discharge occurring in the GIS 10. The sensor unit 210 according to one embodiment may include an infrared sensor 212, a visible light sensor 214, a sound sensor 216, and a vibration sensor 218.

The infrared sensor 212 can detect infrared rays or heat where partial discharge occurs. Since partial discharge physically means movement of energy, the occurrence of partial discharge causes changes in surrounding heat or heat distribution. The infrared sensor 212 can detect electromagnetic waves in the infrared region. For example, the infrared sensor 212 may be an infrared camera or a thermal imaging camera, but is not limited thereto.

The infrared sensor 212 can detect infrared rays and measure the intensity of radiant energy by detecting energy in the form of an infrared wave, which is a type of electromagnetic wave radiated from the inside of the GIS. Furthermore, information can be generated in different colors depending on the intensity and amount of infrared radiant heat. For example, the infrared sensor 212 can generate and transmit to the control unit information indicating red as high energy at the center of the partial discharge, and information indicating blue as low energy at areas far from the center.

The visible light sensor 214 can detect electromagnetic waves in the visible light region where partial discharge occurs. When spark-like light is generated in a dark space inside the GIS due to the occurrence of partial discharge, the visible light sensor 214 can sense the light. For example, the infrared sensor 212 may be a camera, a semiconductor camera sensor, etc., but is not limited thereto.

The visible light sensor 214 can detect visible light and measure the intensity of radiant energy by detecting energy in the form of a visible light wavelength, which is a type of electromagnetic wave radiated from the inside of the GIS. Furthermore, brightness information can be generated in various ways depending on the intensity of visible light. For example, the visible light sensor 214 can generate and transmit to the control unit information indicating white to light gray as high energy at the center of the partial discharge, and information indicating black as low energy at areas far from the center.

The infrared sensor 212 and/or the visible light sensor 214 can adjust the image screen being sensed. For example, you can zoom in/out and move up, down, left and right. Image screen adjustment of the infrared sensor 212 and/or visible light sensor 214 may be controlled by the controller 220. When the management server 300 transmits a command for adjusting the image screen of the infrared sensor 212 and/or the visible light sensor 214 to the GIS partial discharge detection device 200, the control unit 220 controls the infrared sensor 212. And/or the visible light sensor 214 can be controlled. Alternatively, an on-site inspector can control the control unit 220 using a computing device, etc. to adjust the zoom function of the infrared sensor 212 and/or the visible light sensor 214.

The infrared sensor 212 and/or the visible light sensor 214 can easily measure partial discharge compared to conventional partial discharge measurement using UHF inside and outside the GIS. When measuring using UHF, specialized functions such as noise filtering are required to detect partial discharge signals, but the infrared sensor 212 and/or visible light sensor 214 enables visually intuitive detection and judgment. Therefore, expert judgment is not required, and detection accuracy is high.

The sensor unit according to one embodiment may include a sound sensor 216. The sound sensor 216 can detect the sound that occurs when a partial discharge occurs. The occurrence of partial discharge can generate sound through vibration of the surrounding gas or GIS composition. The sound sensor 216 can detect sound as vibration of a longitudinal wave. For example, the sound sensor 216 may be a microphone, but is not limited thereto. The sound sensor 216 may sense a sound pulse and transmit it to the control unit 220.

The sensor unit according to one embodiment may include a vibration sensor 218. The vibration sensor 218 can detect vibration that causes partial discharge. Here, vibration may include various vibrations in addition to electromagnetic waves and sound. For example, vibration sensor 218 is a known sensor, which may be, but is not limited to, UHF. The vibration sensor 218 can detect vibration of the line or GIS 10 where partial discharge occurs.

The control unit 220 according to one embodiment may control the operation of the sensor unit 210. For example, it may be a computing device that can supply power to the sensor unit 210, transmit a control signal to the sensor unit 210, and receive sensing information, etc. from the sensor unit 210. Additionally, the control unit 220 may transmit sensing information to the management server 300, etc. The control unit 220 may be placed adjacent to the GIS 10, and may preferably be placed outside the GIS 10. The control unit 220 according to one embodiment may include a processor 222, a transceiver 224, a power unit 226, and a memory 228.

The processor 222 may process information of the GIS partial discharge detection device 200 and control other components. For example, the processor 222 may be a CPU, MCU, etc., but is not limited thereto. The processor 222 may receive sensing information from the sensor unit 210 or each sensor of the sensor unit 210 through an input/output interface. The processor 222 may store sensing information in the memory 228. The processor 222 may control the transceiver 224 to transmit sensing information to an external device such as the management server 300. Here, the sensing information may be digital and/or analog information received from the sensor unit 210, or may be information processed/processed based on this. For example, the fact that the transceiver 224 transmits sensing information is not necessarily limited to transmitting the information received from the sensor unit 210 as is.

The transceiver 224 can transmit information to an external device and receive information from the outside. For example, the transceiver 224 may transmit sensing information to the management server 300. Also, for example, the transceiver 224 may receive information about device control from the management server 300. The transceiver 224 is a component for wired or wireless communication, preferably wireless communication, and may include, but is not limited to, a router, a modem, etc.

The power supply unit 226 may supply power to each component of the GIS partial discharge detection device 200 to the GIS partial discharge detection device 200. For example, the power unit 226 may supply power to the sensor unit 210 so that the sensor continuously senses. Additionally, the power unit 226 may supply power to the processor 222 so that the processor can control other components.

The memory 228 may store sensing information received from the sensor unit 210. For example, the memory 228 may be a flash memory, MMC, HDD, etc., but is not limited thereto. If the transceiver 224 is not configured in the GIS partial discharge detection device 200 or does not operate, the sensing information is stored in the memory 228, and then the information is moved by an on-site inspector or the transceiver 224 fails. It can be sent after repair.

Using FIG. 4, improved partial discharge detection using a plurality of sensors will be described. Figure 4 is a schematic diagram showing a plurality of sensors sensing partial discharge according to an embodiment of the present disclosure.

The infrared sensor 212 and/or the visible light sensor 214 may be configured in plural numbers. For example, there are two infrared sensors 212 and may be placed at different locations inside the GIS 10. When two spaced apart infrared sensors 212 each measure the plane position of a partial discharge, the location where the partial discharge occurred can be precisely determined by combining the two measurement information.

According to one embodiment, the infrared sensor and the visible light sensor may be placed spaced apart inside the GIS. According to another embodiment, a plurality of infrared sensors may be arranged to be spaced apart inside the GIS. According to another embodiment, a plurality of visible light sensors may be arranged to be spaced apart within the GIS.

Preferably, the two infrared sensors 212 are arranged perpendicularly to each other, so that the location where the partial discharge occurs can be determined by sensing the location on the xy plane and the location on the yz plane. According to one embodiment, the infrared sensor and the visible light sensor are arranged to be spaced apart inside the GIS and can sense in directions perpendicular to each other. According to another embodiment, a plurality of infrared sensors may be arranged to be spaced apart inside the GIS and sense in directions perpendicular to each other. According to another embodiment, a plurality of visible light sensors are arranged to be spaced apart inside the GIS and can sense in directions perpendicular to each other.

When one of the spaced sensors detects a partial discharge on the sensing plane, and the other sensor detects a partial discharge on the sensing plane, the two sensing information are combined to determine the location where the partial discharge occurred in the GIS. It can be detected three-dimensionally. Here, the spaced apart sensors may be a plurality of infrared sensors 212, a plurality of visible light sensors 214, or an infrared sensor 212 and a visible light sensor 214. For example, if the infrared sensor 212 detects abnormal heat on one side and the visible light sensor 214 detects instantaneous light on one side at the same time, the two sensing information are combined to detect the part at a certain location in the GIS. It is possible to three-dimensionally determine whether a discharge has occurred. According to one embodiment, the GIS partial discharge detection device 200 may use coordinates.

When deploying multiple sensors to obtain a three-dimensional view, there are the following advantages. First, the location of partial discharge can be detected with high accuracy. As previously explained, in the case of conventional measurement using UHF, even if the occurrence of partial discharge was known, the UHF measurement had to be repeated for each part and the location of occurrence had to be guessed based on the signal strength. When a partial discharge is detected three-dimensionally by arranging a plurality of sensors according to an embodiment of the present disclosure, the location of the partial discharge can be accurately detected without the inconveniences of the prior art.

Second, the area where partial discharge occurrence can be detected is expanded. Due to the straight nature of light, an area may be formed that cannot be detected by a single visible light sensor or infrared sensor. In other words, a single sensor may not be able to detect partial discharge due to the internal configuration of the GIS, but when configured with multiple sensors, the area that cannot be detected can be reduced or eliminated.

Figure 5 is a schematic diagram showing a sensor according to an embodiment of the present disclosure processing an image using ROI. ROI (Region of interest) can be used in image processing through sensors.

ROI is a method of processing image information that increases the importance of the area of interest and lowers the importance of the remaining areas. For example, in real-time shooting of a video, only information in the area of interest can be transmitted in high quality, and information outside the area of interest can be transmitted in low quality, thereby saving data and resource consumption and saving power.

When the GIS partial discharge detection device 200 captures images inside the GIS in real time through the infrared sensor 212 and/or the visible light sensor 214, if partial discharge occurs, the corresponding portion is set as the ROI. You can. Here, setting the ROI can be performed by a known deep learning learning method. ROI processing may be performed through the control unit 220. Accordingly, the GIS partial discharge detection device 200 can economically process data in the transmission and reception of image information using the ROI of the partial discharge portion.

With reference to FIG. 6 , the arrangement of the control unit 220 and the connection between the control unit 220 and the sensor unit 210 will be described. Figure 6 is a diagram showing a location where a device according to an embodiment of the present disclosure is placed.

According to one embodiment, the control unit 220 may be placed outside the GIS 10. For example, it may be placed on the outer wall of the GIS 10, etc. When the control unit 220 is placed outside the GIS 10, sensing information can be transmitted wirelessly to the outside.

According to one embodiment, the sensor unit 210 may be placed inside the GIS 10. In this case, a connection may be necessary between the sensor unit 210 inside the GIS 10 and the external control unit 220. Here, the connection may be a wired connection. That is, a streamline connecting the inside and outside of the GIS 10 may be placed.

When the GIS 10 is designed, placed, and configured, a spacer hole or a streamline connecting the inside and outside can be formed when designing a valve. Figure 6 shows the GIS and spacers and the bolt holes in the spacers. According to one embodiment, wires inside and outside the GIS may be connected through bolt holes in the spacer. Through this, the control unit 220 outside the GIS 10 can be connected to the sensor unit 210 inside the GIS 10. Furthermore, the control unit 220 can receive information sensed by the sensor by wire. And the control unit 220 can transmit sensing information to the management server using a wireless network, etc. through a transceiver.

Hereinafter, with reference to FIG. 7, an operation of a system according to an embodiment of detecting and monitoring partial discharge of a GIS will be described. Figure 7 is a diagram showing the operation of a system according to an embodiment of the present disclosure.

In the case of GIS electrical equipment, it consists of an internal bus bar, insulator, circuit breaker, disconnector, transformer, lightning arrester, and an enclosure surrounding it. When a defect occurs in the GIS, partial discharge occurs in the defective part, and the insulation generated in the GIS Deterioration is caused by various factors. There are direct factors such as surrounding temperature, humidity, and mechanical vibration, but the most representative factors are the direct factors, such as internal partial discharge and thermal burns. In addition, phenomena arising from partial discharge are broadly divided into light, noise emission, electrical energy emission, and gas. In the conventional method, an ultrasonic sensor was used because insulation breakdown can be prevented by measuring the discharge phenomenon at an early stage. However, since deterioration can only be detected after the deterioration has progressed to a certain extent, the initial state of deterioration cannot be known. The disadvantage was that the misdiagnosis rate of deterioration detection was high. According to this disclosure, it is possible to accurately diagnose light, heat, vibration, and noise generated by discharge occurring in GIS by sensing from various angles. The built-in infrared sensor and visible light sensor transmit signals to the on-site collection team through real-time images at all times, and the collection unit notifies the user of this sign with an alarm when an abnormal signal occurs. The built-in camera function measures the temperature by thermal imaging of the power facility to be measured according to temperature sensitivity and determines whether partial discharge has occurred through the highest allowable temperature method of the power facility and the three-phase temperature comparison method, and according to the comparison result or judgment result. Provides a method including the step of determining and notifying the insulation status grade of the target power facility, and uses a camera to measure temperature by thermal imaging and discharge phenomenon by electric field and transmit the results to the on-site collection team so that the user can diagnose Perform. In addition, in order to accurately identify partial discharge phenomenon, sound and vibration are detected and signals are transmitted to the field collection panel.

If a partial discharge occurs or an abnormal situation such as a network abnormality of the GIS partial discharge detection device 200, a data communication device abnormality, or a sensor or control unit abnormality occurs, the management server 300 can detect it. Furthermore, an alarm can be implemented so that it can be visually recognized by the user and HMI of the management server 300. You can also save these logs. The HMI performs the function of displaying, storing, and analyzing data judged based on abnormality symptom judgment criteria and transmitted from the detection device, and is configured to enable remote analysis of data determined to be defective using PRPS and PRPD. The time change of the accumulated data for analysis allows the user to arbitrarily adjust and analyze it, and the HMI is also configured to enable PRPS and PRPD conversion for the measured data. HMI can provide the function to check, store, and analyze real-time data for each substation and sensor through the GIS partial discharge detection device 200 when necessary. HMI is a web link and data storage device that can provide the function to check partial discharge abnormality event data and real-time data through HMI and diagnostic unit on KEPCO operator PC. HMI Monitor can be installed in the operating department or distribution board. there is.

When a secondary discharge occurs in a power facility, it can cause failure not only in the relevant facility but also in adjacent substation facilities, resulting in a wide-area power outage, which can cause significant damage to the power supply. Through the GIS partial discharge detection device and system according to this disclosure, partial discharge, which is a cause of GIS failure, can be recognized in advance to prevent power outages, reduce loss costs due to GIS insulation breakdown, and prevent incidental losses in company business due to power outages. You can.

The present invention detects elements such as vibration, light, and heat in order to visualize and accurately analyze partial discharge signals that were previously difficult to visually detect. It has the advantage of being able to accurately diagnose the area where discharge occurs through a moving camera with a zoom function, installation costs are low, measurements can be made in a short period of time, and no specialized technology is required. By adding the convenient search function desired by the user to the HMI, adjusting the camera and implementing the algorithm, anyone can easily use it without expert knowledge. In addition, various functions such as waveform analysis have been added for more precise analysis, enabling detailed failure analysis, which is expected to contribute significantly to establishing and preventing power facility failures.

Those skilled in the art to which the present invention pertains will understand that the present invention can be implemented in other specific forms without changing its technical idea or essential features. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive. The scope of the present invention is indicated by the scope of the claims described below rather than the detailed description above, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts are included in the scope of the present invention. must be interpreted.

100: GIS partial discharge detection system
200: GIS partial discharge detection device
210: sensor unit
212, 212_a, 212_b: Infrared sensor
214: visible light sensor 216: sound sensor
218: Vibration sensor 220: Control unit
222: Processor 224: Transceiver
226: power unit 228: memory
230: filter

Claims (14)

In the GIS partial discharge detection device,
It includes a sensor unit disposed on the inner surface of the GIS and a control unit that controls the sensor unit,
The sensor unit,
Includes an infrared sensor and a visible light sensor,
The control unit,
A power supply unit that supplies power to the sensor unit,
A memory that stores information sensed by the sensor unit, and
Includes a processor that processes the sensed information,
The infrared sensor and the visible light sensor are disposed perpendicular to each other and sense a position on one plane and a position on another plane perpendicular to the one plane to determine the location where partial discharge occurs,
Device.
According to paragraph 1,
The sensor unit further includes a sound sensor,
Device.
According to paragraph 2,
The sensor unit further includes a vibration sensor,
Device.
According to paragraph 3,
The control unit,
Further comprising a transceiver that transmits the sensed information to an external management server,
Device.
According to paragraph 4,
The processor,
When any one of the infrared sensor, the visible light sensor, the sound sensor, and the vibration sensor receives partial discharge sensing information, controlling the transceiver to transmit the sensing information to an external management server,
Device.
According to clause 5,
The infrared sensor and the visible light sensor are arranged to be spaced apart inside the GIS and sense in directions perpendicular to each other.
Device.
According to clause 5,
The infrared sensors are plural and arranged to be spaced apart inside the GIS and sense in directions perpendicular to each other.
Device.
According to clause 5,
A plurality of visible light sensors are arranged to be spaced apart inside the GIS and sense in directions perpendicular to each other.
Device.
In the GIS partial discharge detection system,
Includes a GIS partial discharge detection device and management server disposed in the GIS,
The GIS partial discharge detection device,
A sensor unit disposed on the inner surface of the GIS to sense partial discharge, and
A control unit that supplies power to the sensor unit, stores information sensed by the sensor unit, processes it, and transmits it to a management server,
The management server is,
Monitoring partial discharge of the GIS by receiving the sensed information from the GIS partial discharge detection device,
The sensor unit,
Includes an infrared sensor and a visible light sensor,
The infrared sensor and the visible light sensor are disposed perpendicular to each other and sense a position on one plane and a position on another plane perpendicular to the one plane to determine the location where partial discharge occurs,
system.
According to clause 9,
The sensor unit further includes a sound sensor,
system.
According to clause 10,
The sensor unit further includes a vibration sensor,
system.
According to clause 11,
The infrared sensor and the visible light sensor are arranged to be spaced apart inside the GIS and sense in directions perpendicular to each other.
system.
According to clause 11,
The infrared sensors are plural and arranged to be spaced apart inside the GIS and sense in directions perpendicular to each other.
system.
According to clause 11,
The visible light sensors are plural and arranged to be spaced apart inside the GIS and sense in directions perpendicular to each other.
system.

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