CN116223984A - Automatic real-time state management system applied to high-voltage equipment - Google Patents
Automatic real-time state management system applied to high-voltage equipment Download PDFInfo
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- G—PHYSICS
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1218—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing using optical methods; using charged particle, e.g. electron, beams or X-rays
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- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
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- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
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- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
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Abstract
The invention provides an automatic real-time state management system applied to high-voltage equipment, and relates to the technical field of automatic real-time state management of high-voltage equipment. The system comprises a front end part, a transmission part, a monitoring command center part and a management system, wherein the specific steps of the management system are as follows. The invention detects abnormal heating, discharging and detecting of the high-voltage equipment by an advanced optical imaging method, has the characteristics of non-contact, high sensitivity, accurate positioning, strong anti-interference capability and high detection efficiency, particularly combines the two methods to carry out joint detection and comprehensive diagnosis on the equipment, overcomes the defects of the prior single detection method, can efficiently manage the detection information of the equipment by utilizing a developed software management system, and can effectively carry out automatic identification, diagnosis and early warning of faults by adopting an information fusion technology and an intelligent diagnosis algorithm, thereby realizing real-time management of the equipment state.
Description
Technical Field
The invention relates to the technical field of automatic real-time state management of high-voltage equipment, in particular to an automatic real-time state management system applied to the high-voltage equipment.
Background
The current planned maintenance system adopted by the power equipment in the power system has serious defects such as frequent temporary maintenance, insufficient maintenance or excessive maintenance, blind maintenance and the like, so that the annual cost of equipment maintenance is huge, and with the application of comprehensive intelligent systems such as sensing technology, microelectronics, computer software and hardware, digital signal processing technology, artificial neural network, expert system, fuzzy theory and the like in state monitoring and fault diagnosis, the state maintenance research based on the equipment state monitoring and advanced diagnosis technology is developed and applied, the purpose of intelligent management of the state of the high-voltage power equipment is to timely master the running state of the equipment, the basis is provided for the state maintenance of the equipment on the basis, and with the continuous progress of technology, the development of society, the automatic control of the power equipment and the on-site unattended operation have become necessary trends.
Because the state maintenance mainly depends on the state detection and on-line monitoring means of the equipment in operation, the detection and on-line monitoring of the state of the operation of the power equipment plays an important role in the production of electric safety all the time, the ultraviolet imaging technology and the infrared imaging technology are taken as a new technology, the detection of the state of the operation of the power equipment has the superiority, the infrared imaging is used for diagnosing whether the state of the operation of the equipment is good or not according to the distribution of the thermal state of the equipment, the infrared imaging technology has the advantages of continuous operation, non-contact, long-distance, rapid and visual imaging on the thermal state of the equipment, because the thermal image of the equipment is the real description of the thermal state and the temperature distribution of the thermal state of the equipment in the operation state, and whether the thermal distribution of the power equipment in the operation state is an important feature for judging whether the state of the equipment is good or not, therefore, the infrared imaging technology is adopted to diagnose the state of the equipment and hidden trouble defects thereof through analyzing the thermal image graph of the equipment, the ultraviolet imaging is to monitor and diagnose the running state of the equipment by taking the corona intensity of high-voltage discharge of the equipment as the basis, the ultraviolet imaging also has the characteristics of non-contact and long-distance imaging, is not interfered by electric fields, has the characteristics of intuitiveness, accuracy, high sensitivity, rapidness, safety, wide application range and the like, has become one of important means for monitoring the health state and fault diagnosis of the electric equipment, although the two methods detect optical radiation signals, the principle has differences, the infrared imaging detects infrared light signals with 7.5-13um wave bands, reflects the differences in the temperature distribution of the equipment, and the temperature differences are mainly caused by different current distribution, but in engineering practice, some equipment defects do not cause obvious increase of current, but may cause a discharge phenomenon; the ultraviolet imaging detection is that ultraviolet signals with the wave band of 0.24-0.28um reflect the discharge phenomenon, but in engineering practice, although a plurality of defects can cause the increase of local field intensity, the electric field intensity is insufficient to form discharge, so that the ultraviolet imaging method can not detect the defects, or even if the discharge is formed, the discharge point can be in the equipment, and can not be detected by an ultraviolet imaging instrument, but the defects can possibly cause abnormal temperature rise and are detected by the infrared imaging instrument, the existing ultraviolet and infrared thermal imaging detection is mostly stopped in single operation detection, the stored corona images, corona videos and thermal images can be analyzed and diagnosed on a background PC (personal computer), only intermittent analysis and control can be realized, and the fault properties of real-time monitoring and diagnosis can not be operated, and the like, so that the monitoring delay can be caused, in addition, the corona and thermal state detection of some special occasions such as unattended transformer substation operation equipment can be often caused, the infrared labor intensity can be improved if the ultraviolet and infrared imaging of portable operation is carried, the infrared imaging system can not be controlled in a real-time, the infrared imaging system can be controlled in a long-time, and the infrared imaging system can not be controlled in a long-time, and the infrared imaging system can be expected to realize.
Disclosure of Invention
Technical scheme (one)
In order to achieve the above purpose, the invention is realized by the following technical scheme: the utility model provides an automatic real-time state management system for high-voltage equipment, includes front end portion, transmission part, control command center part and management system, its characterized in that: the management system specifically comprises:
s1, synchronous focusing technology, wherein a system adopts a three-light path synchronous imaging technology, and synchronous focusing is required to be carried out on different distances so as to ensure that two images are always in an optimal clear state;
s2, in an ultraviolet imaging detection system, because ultraviolet radiation is generally weak, if a weak ultraviolet signal is directly detected by using a CCD sensitive to ultraviolet, the intensity of the ultraviolet signal is too small to be easily detected;
s3, an image fusion technology, namely, combining two paths of or falling images into one path of image containing two paths or multiple paths of image information through operation in a certain mode;
s4, ultraviolet photon counting technology, wherein ultraviolet photon counting is mainly used for counting the number of ultraviolet photons in a certain time in a unit area;
s5, a special infrared movement processing display algorithm for temperature measurement, a detector original signal processing algorithm, a temperature measurement algorithm and a gas enhancement display algorithm.
Preferably, the front end part mainly comprises an ultraviolet, infrared and visible light camera, a long focal length lens, an outdoor integrated holder, an all-weather protective cover, a power supply system, and lightning protection, an iron tower and an infrastructure of the whole front end.
Further, the function of the image acquisition device is mainly to complete the conversion from the target scenery to the image information, the physical change is a photoelectric conversion process, the camera device bears the main task in the conversion process, and the cradle head, the lens and other auxiliary devices complete the functions of framing, lighting and focusing of the target scenery.
Further, the transmission of the transmission portion monitoring image is a vital link of the whole system, and the selection of which media and devices to transmit the image and other control signals will directly relate to the quality and reliability of the monitoring system.
Furthermore, the medium used for transmitting the image signals in the substation level monitoring system is an optical fiber, the corresponding transmission equipment is an optical terminal, the optical terminal can provide one path of image interfaces and multiple paths of image interfaces, can also provide two-way audio interfaces, one path of two-way data interfaces and multiple paths of two-way data interfaces of various types, comprises RS232, RS485 and Ethernet, and is integrated into one optical fiber for transmission, and a network video server and a file management server are arranged in the monitoring software of the gold control command center level, so that a plurality of substations can be monitored and managed in real time.
Furthermore, the monitoring command center part is a control, image display and image video center of the whole system, the monitoring center can provide comprehensive, clear, operable, recordable and playable live real-time images for command schedulers, and the center equipment consists of an optical transceiver, a matrix controller, a monitoring wall, a hard disk video recorder, a main monitor, a main/sub control keyboard and a main/sub control keyboard.
Furthermore, the video digital monitoring system adopts the same card of audio and video, ensures that the audio and video are completely synchronous, and the ultraviolet and infrared images are dynamically collected and observed.
Furthermore, the device adopts an MPEG-4 compression mode to dynamically allocate code streams, and the data size is only 1/8-1/2 of that of the MPEG-1 compression mode and the MPEG-2 compression mode, so that the data size is directly related to the image quality setting level and the picture dynamic condition.
Furthermore, the management system is composed of automatic inspection, automatic early warning, remote control, monitoring control and temperature measurement of a large-scale target by a monitoring point, networked monitoring platform software development, professional monitoring database development, development of an expert real-time diagnosis system, infrared, ultraviolet and visible light remote network transmission, security setting of an internal network accessed by the monitoring system and multi-change power station network type monitoring software development.
Still further, the management system adopts the following technical route: investigation, problem summary, overall design, device software and hardware development, multispectral detection method development, test, net hanging test operation, summary, improvement, defect elimination, project identification and acceptance.
(II) advantageous effects
The invention provides an automatic real-time state management system applied to high-voltage equipment. The beneficial effects are as follows: the invention detects abnormal heating, discharging and detecting of the high-voltage equipment by an advanced optical imaging method, has the characteristics of non-contact, high sensitivity, accurate positioning, strong anti-interference capability and high detection efficiency, particularly combines the two methods to carry out joint detection and comprehensive diagnosis on the equipment, overcomes the defects of the prior single detection method, can efficiently manage the detection information of the equipment by utilizing a developed software management system, and can effectively carry out automatic identification, diagnosis and early warning of faults by adopting an information fusion technology and an intelligent diagnosis algorithm, thereby realizing real-time management of the equipment state.
Detailed Description
The technical solutions of the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiment one:
the embodiment of the invention provides an automatic real-time state management system applied to high-voltage equipment, which comprises a front end part, a transmission part, a monitoring command center part and a management system, wherein the management system is operated by an automatic inspection system in an intelligent mode of a computer system, the automatic inspection system does not need to be attended, the automatic early warning finds out that the temperature of target equipment is abnormal, the ultraviolet intensity is abnormal and gives an alarm automatically, the working state of the equipment is infrared and ultraviolet images, the specific position condition information of a prompt person is prompted, so as to immediately remove faults and give working reports, remote control realizes remote temperature analysis on the scene condition in a transformer substation area, remote corona intensity analysis, remote monitoring, and the appearance state, working state, temperature field distribution, ultraviolet corona condition, infrared, ultraviolet and visible light remote network transmission are realized, and the monitoring point is used for monitoring control and temperature measurement of a large-scale target, development of network monitoring platform software, development of a monitoring database, development of an expert real-time diagnosis system, remote control of infrared, ultraviolet and visible light network transmission, monitoring system access security setting, and the like, and the system is used for jointly forming a changeable technical route under the monitoring system is adopted by the network development system: investigation, problem summary, overall design, device software and hardware development, multispectral detection method development, test, net hanging test operation, summary, improvement, defect elimination, project identification and acceptance, wherein the management system comprises:
s1, synchronous focusing technology, wherein a system adopts a three-light path synchronous imaging technology, and synchronous focusing is required to be carried out on different distances so as to ensure that two images are always in an optimal clear state;
s2, in an ultraviolet imaging detection system, because ultraviolet radiation is generally weak, if a weak ultraviolet signal is directly detected by using a CCD sensitive to ultraviolet, the intensity of the ultraviolet signal is too small to be easily detected;
s3, an image fusion technology, namely, combining two paths of or falling images into one path of image containing two paths or multiple paths of image information through operation in a certain mode;
s4, ultraviolet photon counting technology, wherein ultraviolet photon counting is mainly used for counting the number of ultraviolet photons in a certain time in a unit area;
s5, processing and displaying an algorithm by using an infrared machine core special for temperature measurement, and processing an original signal of a detector, a temperature measurement algorithm and a gas enhancement and display algorithm;
the front end part mainly comprises an ultraviolet, infrared and visible light camera, a long-focus lens, an outdoor integrated holder, an all-weather protective cover, a power supply system, and lightning protection, an iron tower and infrastructure of the whole front end, the function of the image acquisition equipment mainly comprises the conversion from a target scenery to image information, the physical change of the image acquisition equipment is a photoelectric conversion process, the camera device bears the main task in the conversion process, and the holder, the lens and other auxiliary equipment realize the functions of framing, lighting and focusing of the target scenery;
the transmission of the monitoring image of the transmission part is a vital link of the whole system, which media and equipment are selected to transmit the image and other control signals to be directly related to the quality and reliability of the monitoring system, the media used for transmitting the image signals in the substation level monitoring system are optical fibers, the corresponding transmission equipment is an optical transceiver, the optical transceiver can provide one-way and multi-way image interfaces, can also provide two-way audio interfaces, one-way and multi-way various types of two-way data interfaces, comprises RS232, RS485 and Ethernet, is integrated to one optical fiber for transmission, and a network video server and a file management server are arranged in the gold control command center level monitoring software to monitor and manage a plurality of substations in real time;
the monitoring command center part is a control, image display and image video recording center of the whole system, the monitoring center can provide comprehensive, clear, operable, recordable and playable live real-time images for command schedulers, the center equipment consists of an optical transceiver, a matrix controller, a monitoring wall, a hard disk video recorder, a main monitor and a main/sub-control keyboard, the video digital monitoring system adopts an audio and video co-card, the complete synchronization of the audio and video is ensured, the dynamic acquisition and observation of ultraviolet and infrared images are ensured, the equipment adopts an MPEG-4 compression mode, a code stream is dynamically allocated, the relative MPEG-1 and MPEG-2 compression modes, the data size is only 1/8-1/2 of the data size, and the image quality setting level and the picture dynamic condition have a direct relation;
the device has the remote transmission and monitoring of ultraviolet, infrared and visible light images; the remote infrared image transmission performance is stable, the frame losing quantity is less, the overtemperature and ultraviolet exceeding alarm prompt, the remote camera control, the prefabrication positioning, the remote switching, the automatic inspection and the like can support the central monitoring of multiple places, the remote infrared image transmission system is not limited by geography, multiple users can monitor the same front end at the same time, abnormal automatic snapshot occurs, meanwhile, a video recorder is started automatically, the full digital video recording is realized, the video digital monitoring system has good compatibility and expandability, the video digital monitoring system adopts the same card and ensures the complete synchronization of the video and the audio, the ultraviolet and the infrared image dynamic acquisition and observation, adopts the MPEG-4 compression mode, dynamically distributes code streams, has the direct relation with the image quality setting level, the image dynamic condition and the like, and has the data size of only 1/8-1/2 relative to the MPEG-1, MPEG-2 and the like, such as: when the common image quality is that the video file per hour is 100-180MB, when the image is still, the video file per hour is lower than 100MB, the single image is displayed with ultra-high definition, and the single image and the multiple images are switched; the multi-picture is displayed in general definition, has multiple display modes, plays back and has a local amplification function, a cradle head control function and an alarm linkage video recording function, can realize alarm linkage output, has flexible video recording modes, has manual, timing, alarm and other video recording modes, automatically deletes and covers according to set video recording days, alarms when the capacity is insufficient, and keeps a history operation record for standby;
the device has the effects of reducing faults, maintenance cost and labor intensity of workers;
the fault is reduced, the maintenance cost is lowered, the running state of the power equipment directly determines the safety and benefit of a power system, and equipment such as a transformer, a bus, a disconnecting switch, a circuit breaker, a coupling capacitor, a high-voltage cable and the like in the high-voltage power equipment, and no matter which equipment is in an abnormal working state, if the abnormal working state is not timely processed, the equipment is likely to develop into a fault, even the equipment is damaged or personal accidents are caused, so that the immeasurable result is caused. The equipment is effectively monitored and detected, so that equipment maintenance cost is reduced by 25% -50%, equipment accident rate is reduced by 75%, economic benefit is quite remarkable, normal operation of the power equipment is guaranteed to be a primary operation, the traditional relay protection and automatic device can play a certain role in protection, but has a great gap from the actual requirements in real time and networking, and in order to further improve the reliability of various power equipment, particularly key equipment, the online monitoring and electrified testing technology is a necessary direction of the development of the high-voltage testing technology, the online monitoring system for the ultraviolet and infrared imaging of the network type high-voltage equipment can realize remote transmission and monitoring of ultraviolet, infrared and visible light images, overtemperature and corona out-of-standard alarm prompt, early corona, heating and other faults can be better discovered and early-warning, and the safe operation of the equipment is guaranteed;
the method reduces the labor cost and the labor intensity of workers, can acquire the running state information of equipment in a remote, non-contact, real-time and quick online monitoring mode by using an ultraviolet and infrared detection technology, has the advantages of high resolution, visual image, no electromagnetic interference, safety, reliability, benefit, high investment ratio and the like, can perform fault diagnosis and analysis under the conditions of no power failure, no sampling and no disassembly, is widely and well-developed in the application of an electric power system at present, and can not achieve real-time comprehensive dynamic detection because the ultraviolet and infrared thermal detection instruments used at home and abroad are used for regular inspection, and the labor intensity and the labor cost of workers are increased because the ultraviolet imaging instrument and the infrared thermal imaging instrument are large in volume, workers are required to enter a plurality of sites in the inspection process.
Working principle: the video processing and transmitting device comprises a visible light video unit, an ultraviolet video unit and an infrared video unit, wherein the visible light video unit, the ultraviolet video unit and the infrared video unit output three paths of videos to video processing and transmitting yuan corresponding to the rear end in real time, a background main control server receives the three paths of videos, calculates the temperature and ultraviolet photon data of equipment, invokes a video processing module, superimposes multiple paths of videos, facilitates positioning analysis, stores all videos and provides streaming media service, the main control server sends control commands to front end monitoring equipment through a network according to instructions of operators or prestored cruising instructions, a cloud deck and a lens motor are controlled, and a remote monitoring terminal can log in the main control server to monitor the videos uploaded by the front end in real time and check the monitoring number uploaded by the main control server.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. An automatic real-time state management system applied to high-voltage equipment, which is characterized in that: the system comprises a front end part, a transmission part, a monitoring command center part and a management system, wherein the management system comprises the following components:
s1, synchronous focusing technology, wherein a system adopts a three-light path synchronous imaging technology, and synchronous focusing is required to be carried out on different distances so as to ensure that two images are always in an optimal clear state;
s2, in an ultraviolet imaging detection system, because ultraviolet radiation is generally weak, if a weak ultraviolet signal is directly detected by using a CCD sensitive to ultraviolet, the intensity of the ultraviolet signal is too small to be easily detected;
s3, an image fusion technology, namely, combining two paths of or falling images into one path of image containing two paths or multiple paths of image information through operation in a certain mode;
s4, ultraviolet photon counting technology, wherein ultraviolet photon counting is mainly used for counting the number of ultraviolet photons in a certain time in a unit area;
s5, a special infrared movement processing display algorithm for temperature measurement, a detector original signal processing algorithm, a temperature measurement algorithm and a gas enhancement display algorithm.
2. An automated real-time status management system for high voltage devices according to claim 1, wherein: the front end part mainly comprises an ultraviolet, infrared and visible light camera, a long-focus lens, an outdoor integrated holder, an all-weather protective cover, a power supply system, and lightning protection, an iron tower and infrastructure of the whole front end.
3. An automated real-time status management system for high voltage devices according to claim 2, wherein: the function of the image acquisition equipment is mainly to complete the conversion from a target scenery to image information, the physical change is a photoelectric conversion process, the camera shooting device bears the main task in the conversion process, and the cradle head, the lens and other auxiliary equipment complete the functions of framing, lighting and focusing of the target scenery.
4. An automated real-time status management system for high voltage devices according to claim 1, wherein: the transmission of the transmission portion monitoring image is a vital link of the whole system, and the selection of which media and devices to transmit the image and other control signals will directly relate to the quality and reliability of the monitoring system.
5. An automated real-time status management system for high voltage devices according to claim 4, wherein: the medium used for transmitting image signals in the substation level monitoring system is an optical fiber, the corresponding transmission equipment is an optical terminal, the optical terminal can provide one-way and multi-way image interfaces, can also provide a bidirectional audio interface, one-way and multi-way various types of bidirectional data interfaces, comprises RS232, RS485 and Ethernet, is integrated on one optical fiber for transmission, and is provided with a network video server and a file management server in the gold control command center level monitoring software, so that a plurality of substations can be monitored and managed in real time.
6. An automated real-time status management system for high voltage devices according to claim 1, wherein: the monitoring command center part is a control, image display and image video center of the whole system, the monitoring center can provide comprehensive, clear, operable, recordable and playable live real-time images for command schedulers, and the center equipment consists of an optical transceiver, a matrix controller, a monitoring wall, a hard disk video recorder, a main monitor, a main/sub control keyboard.
7. An automated real-time status management system for high voltage devices according to claim 1, wherein: the video digital monitoring system adopts the same card of audio and video, ensures that the audio and video are completely synchronous, and the ultraviolet and infrared images are dynamically collected and observed.
8. An automated real-time status management system for high voltage devices according to claim 1, wherein: the said apparatus adopts MPEG-4 compression mode to dynamically distribute code stream, and the data size is only 1/8-1/2 of that of MPEG-1 and MPEG-2 compression modes, and the data size has direct relation with image quality setting level and picture dynamic condition.
9. An automated real-time status management system for high voltage devices according to claim 1, wherein: the management system is composed of automatic inspection, automatic early warning, remote control, monitoring control and temperature measurement of a large-scale target by a monitoring point, networked monitoring platform software development, professional monitoring database development, development of an expert real-time diagnosis system, infrared, ultraviolet and visible light remote network transmission, security setting of an internal network accessed by the monitoring system and network type monitoring software development of a changeable power station.
10. An automated real-time status management system for high voltage devices according to claim 1, wherein: the management system adopts the following technical route: investigation, problem summary, overall design, device software and hardware development, multispectral detection method development, test, net hanging test operation, summary, improvement, defect elimination, project identification and acceptance.
Priority Applications (1)
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117273323A (en) * | 2023-09-15 | 2023-12-22 | 国网江苏省电力有限公司南通供电分公司 | Digital twinning-based power equipment management method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117273323A (en) * | 2023-09-15 | 2023-12-22 | 国网江苏省电力有限公司南通供电分公司 | Digital twinning-based power equipment management method and system |
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