CN115882378A - Three-dimensional monitoring system and method for gas insulation equipment - Google Patents
Three-dimensional monitoring system and method for gas insulation equipment Download PDFInfo
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- CN115882378A CN115882378A CN202211576747.2A CN202211576747A CN115882378A CN 115882378 A CN115882378 A CN 115882378A CN 202211576747 A CN202211576747 A CN 202211576747A CN 115882378 A CN115882378 A CN 115882378A
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Abstract
The invention discloses a three-dimensional monitoring system and a method for gas insulated equipment, which relate to the technical field of GIS equipment monitoring and comprise the following steps: the sensor layer is arranged on the GIS equipment and used for acquiring signal information of a receiving end; the information integration layer is used for acquiring monitoring information of all the sensors and transmitting the monitoring information to a background; and the background monitoring layer is used for processing signals of all the sensors, identifying the signals of the sensors by a signal identification means and carrying out digital processing so as to realize automatic monitoring and alarm. The invention also provides a three-dimensional monitoring method for the gas insulation equipment. The invention can detect the trace leakage of SF6 gas with high sensitivity and carry out accurate positioning, ensures the personal safety of operators, reduces the economic loss caused by equipment faults, improves the power supply reliability, can greatly reduce the labor intensity of offline live detection, saves the labor cost, saves the cost in the aspects of maintenance and recovery of power grid tripping accidents, prevents the emission of strong greenhouse effect gas and has good economic and social benefits.
Description
Technical Field
The invention relates to the technical field of GIS equipment monitoring, in particular to a three-dimensional monitoring system and method for gas insulated equipment.
Background
Gas Insulated Switchgear (GIS) is a key core device of an electric power system, a large number of GIS is in operation in China, and GIS is widely used in newly built or expanded transmission projects, and the operation reliability of the GIS is directly related to the power supply safety of the electric power system. The GIS operation reliability is improved fundamentally from two aspects of product design and installation acceptance, but the GIS operation reliability also plays a great role in the application of the advanced sensing detection technology after the GIS is put into operation. First, partial discharge detection, it can discover internal discharge defects as early as possible, avoiding burst breakdown failures. At present, technologies such as ultrahigh frequency and ultrasonic partial discharge detection, SF6 humidity and decomposition object detection and the like are the most commonly used GIS internal insulation defect detection methods, in order to guarantee reliable operation of the GIS, the electrified detection needs to be regularly carried out on the GIS, and partial GIS is also provided with an ultrahigh frequency partial discharge online monitoring device to monitor the operation state of equipment all day. And secondly, monitoring SF6 pressure and leakage, which can ensure that the insulation state in the GIS is basically known and has positive effect on reducing greenhouse gas emission. When the SF6 pressure monitoring of the GIS finds that the equipment has abnormal air leakage, an infrared imaging leak detection method, a halogen leak detector and the like are generally adopted to check the leakage part as soon as possible, so that defect elimination is carried out in a targeted manner, and the normal operation performance of the equipment is recovered.
However, in recent ten years, fault statistics shows that internal breakdown discharge caused by GIS insulation fault occurs sometimes, and huge power failure and maintenance loss are caused after the fault. The internal defects are difficult to early warn in time only by means of existing detection means such as ultrasonic waves, ultrahigh frequencies and decomposition products, and on the other hand, the phenomenon that the internal defect conditions found by equipment decomposition after a suspected partial discharge signal is detected and the detection result are difficult to completely correspond exists. The reason is that: (1) The effective detection range of the ultrasonic partial discharge method is small, the monitoring range can cover GIS full equipment only by arranging a large number of measuring points on site, and the method has low sensitivity to solid insulation type partial discharge defects and is only suitable for carrying out live detection or positioning a discharge source by matching with the ultrahigh frequency partial discharge method; (2) The ultrahigh frequency partial discharge detection is obviously influenced by on-site pulse type interference, and the sensitivity and early warning capability of an on-site GIS ultrahigh frequency partial discharge detection device are difficult to guarantee due to the lack of an effective all-link detection and effectiveness evaluation technology at present, so that the early warning of internal defects of a GIS is difficult; (3) The corresponding relation between the ultrahigh frequency and ultrasonic partial discharge signal characteristics and the internal defects of the equipment is not fully disclosed, so that the effectiveness and reliability of the detection means in application are limited; (4) The detection of SF6 decomposer is influenced by GIS defect discharge energy, adsorbent in equipment and the like, the detection sensitivity is not enough, and the discharge decomposer can be detected in a fault gas chamber only after the equipment is in fault, so that the effective early warning of the equipment defect is difficult.
In general, a GIS partial discharge defect detection technology with high sensitivity, high effectiveness and high anti-interference performance is not available at present, so that the GIS fault early warning capability is low.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides a three-dimensional monitoring system and a three-dimensional monitoring method for gas insulation equipment.
The technical scheme provided by the invention is as follows:
three-dimensional monitoring system of gas insulated equipment includes:
the sensor layer is arranged on the GIS equipment and used for acquiring signal information of a receiving end;
the information integration layer is used for acquiring monitoring information of all the sensors and transmitting the monitoring information to a background;
and the background monitoring layer is used for processing signals of all the sensors, identifying the signals of the sensors by a signal identification means and carrying out digital processing so as to realize automatic monitoring and alarm.
As a further technical solution of the present invention, the sensor layer includes:
the ultraviolet partial discharge sensor is arranged in the GIS equipment and used for detecting the partial discharge condition of the GIS equipment;
the SF6 gas leakage monitoring module is arranged on the outer side of the GIS equipment and is used for monitoring the SF6 gas leakage condition;
the ultrahigh frequency sensor is used for monitoring ultrahigh frequency signals of the GIS equipment;
a transformer substation inspection robot is a mobile device for inspecting a transformer substation.
As a further technical solution of the present invention, the information integration layer includes:
a server for receiving the analog signal of the sensor layer through the cable and converting the digital signal,
and the exchanger transmits the data signal converted by the server to the background monitoring platform through a TCP/IP protocol.
As a further technical solution of the present invention, the background monitoring layer includes:
the main control module is responsible for coordinating the operation of the whole system, receiving and receiving the login and operation of the user, coordinating the display and storage of information,
the user management module is used for login and operation management of a user;
an information interaction module for displaying the monitoring processing information and the user information through a human-computer interaction interface,
the data management module is used for carrying out modeling management on the monitoring information and the user information;
the signal decoding processing module is used for classifying, decoding and identifying the monitoring signals;
the information acquisition module is used for receiving the monitoring information uploaded by the server;
a database; for storing the monitoring information.
The further technical scheme of the invention is that the SF6 gas leakage monitoring module monitors in a remote viewing mode, wherein an infrared camera acquires a partial discharge signal of GIS equipment, the partial discharge signal is sent to a server through a remote sensing signal, and the server uploads the remote sensing signal to a background monitoring platform.
As a further technical solution of the present invention, the data management module further includes: a physical mechanism + perceptual process model, the physical mechanism + perceptual process model comprising:
a GIS equipment three-dimensional model, a three-dimensional geometric model of the equipment is constructed, the display is realized by combining with real scene data,
and the monitoring, analyzing and positioning module is used for reducing the order of the model and analyzing and positioning the model through external parameters.
The invention also provides a three-dimensional monitoring method for the gas insulation equipment, which comprises the following steps:
a sensor layer arranged on the GIS equipment collects monitoring information of the GIS equipment;
collecting monitoring information of the GIS equipment to an information integration layer;
and identifying and processing the monitoring information of the information integration layer, and performing automatic monitoring control and warning.
The invention adopts the further technical scheme that the sensor layer arranged on the GIS equipment acquires the monitoring information of the GIS equipment; the method specifically comprises the following steps:
an ultraviolet partial discharge sensor arranged in the GIS equipment detects the partial discharge condition of the GIS equipment;
an SF6 gas leakage monitoring module arranged outside the GIS equipment monitors the SF6 gas leakage condition;
monitoring an ultrahigh frequency signal of the GIS equipment through an ultrahigh frequency sensor;
and the transformer substation is patrolled and examined by the transformer substation patrol and examine robot.
The further technical scheme of the invention is that the monitoring information of the GIS equipment is collected to an information integration layer; the method specifically comprises the following steps: monitoring information of GIS equipment collected by the sensor layer is uploaded to the server through a cable, and the server converts analog signals into digital signals and transmits the digital signals through the switch.
As a further technical solution of the present invention, the identifying and processing of the monitoring information of the information integration layer, and the automatic monitoring control and alarm are specifically comprised of:
the information acquisition module receives monitoring information uploaded by the server;
the user management module is used for logging in and operating and managing a user;
the data management module carries out modeling management on the monitoring information and the user information;
the signal decoding processing module classifies, decodes and identifies the monitoring signals;
the database stores the monitoring information;
the main control module is responsible for coordinating the operation of the whole system, receiving and receiving the login and operation of the user, coordinating the display and storage of information,
and the information interaction module is used for displaying the monitoring processing information and the user information through a human-computer interaction interface.
The invention has the beneficial effects that:
the invention can detect the trace leakage of SF6 gas with high sensitivity and carry out accurate positioning, ensures the personal safety of operators, reduces the economic loss caused by equipment faults, improves the power supply reliability, can greatly reduce the labor intensity of offline live detection, saves the labor cost, saves the cost in the aspects of maintenance and recovery of power grid tripping accidents, prevents the emission of strong greenhouse effect gas and has good economic and social benefits.
Drawings
Fig. 1 is a structural diagram of a three-dimensional monitoring system of gas insulation equipment provided by the invention;
FIG. 2 is a block diagram of one embodiment of the present invention;
FIG. 4 is a view showing a gas leakage remote view according to the present invention;
fig. 3 is a flow chart of a three-dimensional monitoring method for gas insulation equipment according to the present invention.
Detailed Description
The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention.
As shown in fig. 1 and 2, which illustrate a specific embodiment of the present invention,
according to the invention, the built-in ultraviolet partial discharge sensor and the external SF6 gas leakage monitoring device can be connected with the existing GIS equipment monitoring devices such as an ultrahigh frequency sensor and an inspection robot into a unified platform, and the formed gas insulation equipment three-dimensional monitoring system is designed according to the architecture and the standard of the Internet of things of power transmission and transformation equipment.
Three-dimensional monitoring system of gas-insulated equipment includes:
the sensor layer 101 is arranged on the GIS equipment and used for collecting signal information of a receiving end;
the information integration layer 102 is used for acquiring monitoring information of all the sensors and transmitting the monitoring information to a background;
and the background monitoring layer 103 is used for processing signals of all the sensors, identifying the signals of the sensors by a signal identification means and carrying out digital processing to realize automatic monitoring and alarming.
The sensor layer is composed of a sensor which is arranged on the GIS shell and is opposite to the position of the receiving end, and is responsible for collecting the signal information of the receiver, and the information is transmitted to the server through a cable. Wherein the sensor layer comprises:
the ultraviolet partial discharge sensor is arranged in the GIS equipment and used for detecting the partial discharge condition of the GIS equipment;
the SF6 gas leakage monitoring module is arranged on the outer side of the GIS equipment and is used for monitoring the SF6 gas leakage condition;
the ultrahigh frequency sensor is used for monitoring an ultrahigh frequency signal of the GIS device;
a transformer substation inspection robot is a mobile device used for inspection of a transformer substation.
Further, the information integration layer includes:
a server for receiving the analog signal of the sensor layer and converting the digital signal,
and the exchanger transmits the data signals converted by the server to the background monitoring platform through a TCP/IP protocol.
The information integration layer is composed of one or more than one server and a switch, the sensors are connected with the server through cables, the server is connected with the switch, and the switch is connected with the background system. Then the analog signal is sent to the server through the cable, the server converts the analog data into digital signals, the data is sent to a monitoring background system through a switch by using a TCP/IP (network communication protocol), and the monitoring and analysis results are displayed by the background system through decoding and analysis and signal abnormity alarm is provided.
Further, the background monitoring platform comprises: and the data service layer is used for processing, analyzing and managing data and displaying the data through a human-computer interaction interface.
The background monitoring layer is composed of data servers and is responsible for processing, analyzing and managing data, the data servers are connected with the servers through internet access, and if a plurality of servers exist, networking is carried out by using a network switch. The monitoring background system can receive signals of a plurality of servers, analyze and process the signals, and then display the signals on a human-computer interaction interface in a form of taking main wiring as a representation. Wherein, the backstage monitoring layer includes:
the main control module is responsible for coordinating the operation of the whole system, receiving and receiving the login and operation of the user, coordinating the display and storage of information,
the user management module is used for logging in and operating and managing a user;
an information interaction module which displays the monitoring processing information and the user information through a human-computer interaction interface,
the data management module is used for managing the monitoring information and the user information;
the signal decoding processing module is used for classifying, decoding and identifying the monitoring signals;
the information acquisition module is used for receiving the monitoring information uploaded by the server;
a database; for storing the monitoring information.
Monitoring signals of the server are transmitted through a TCP/IP protocol, and data analyzed by a signal decoding processing unit are transmitted to a main control module; the main control module is responsible for coordinating the operation of the whole system, and the position monitoring system of the switch sensor in the GIS adopts the form of main wiring to realize the management of data.
Referring to fig. 3, in the embodiment of the present invention, the SF6 gas leakage monitoring module performs monitoring in a remote viewing manner, where an infrared camera acquires a partial discharge signal of the GIS device, and sends the partial discharge signal to the server through a remote sensing signal, and the server uploads the partial discharge signal to the background monitoring platform through the remote sensing signal.
The SF6 gas leakage monitoring module can display the leakage state, display the historical curve and provide the monitoring data information of the database.
The invention adopts an infrared camera, and uses infrared rays to irradiate a gas leakage site, so that SF6 gas can absorb part of incident light. Under a bright background, invisible SF6 leakage gas can appear like black smoke, and an infrared detector forms an image on a screen. The CMOS camera is used for collecting the image, the collected signal is processed and analyzed, the dynamic motion track of gas leakage is captured, a gas leakage source is determined, and judgment of gas leakage amount is completed.
In the embodiment of the invention, the background monitoring platform is used for receiving, processing and displaying data uploaded by the server, and the upper computer displays the state of the SF6 gas equipment in real time when the system is in a normal running state. When the upper computer triggers a 'calling' instruction, any one group of lossless captured by time arrangement in the folder stored in the register can be manually called, the occurrence time can be accurate to mu s, and a theoretical basis is provided for later-stage exploration of operation and maintenance personnel in the station. When the upper computer triggers a 'positioning' command, the background classifies and summarizes data transmitted back from the multi-part probes, data meeting threshold setting are uniformly classified and judged through the background, a judgment result is obtained after repeated comparison, and meanwhile, the position of a leakage source is accurately positioned by matching with a laser displacement sensor and a gyroscope angle sensor.
In the embodiment of the present invention, the data management module further includes: the physical mechanism + perception process model comprises the following steps:
a GIS equipment three-dimensional model, a three-dimensional geometric model of the equipment is constructed, the display is realized by combining with real scene data,
and the monitoring, analyzing and positioning module is used for reducing the order of the model and analyzing and positioning the model through external parameters.
In order to realize monitoring and event positioning inside and outside the gas insulated equipment, a physical mechanism and a sensing process model need to be established. At present, a commonly used method is that a three-dimensional geometric model of equipment is firstly constructed, and display and positioning are realized by combining live-action data, and the method mainly relates to a three-dimensional visualization technology. In order to realize multi-physics field simulation, event positioning, landing application based on edge calculation and the like on the basis of a visual model, technical researches such as model order reduction and the like are developed at present, and because measurable signals are obviously attenuated when being transmitted from the inside to the outside, the measurable signals are only analyzed through parameters such as external ultrahigh frequency, temperature, ultrasound and the like, and the effectiveness and the accuracy of positioning are restricted.
The invention is based on the thought of 'perception data + model', applies the hypersensitivity optical detection technology in the aspect of data, overcomes the problem that the monitoring data of the internal state of the equipment is not comprehensive enough, and carries out active non-contact detection based on the infrared technology, the acquired data has more effectiveness and accuracy, and monitoring points are reasonably selected to construct the sensing networks inside and outside the equipment, and the sensing networks are processed by standardized protocols and data formats. In the aspect of a model, characteristic values are extracted from monitoring data such as ultraviolet partial discharge, gas leakage, existing ultrahigh frequency partial discharge and infrared images, the problem that in existing multi-physical-field analysis, discharge amount, gas density, temperature and the like are injected as single signals, the model is simplified excessively, and the problem that equipment structure, state and actual working conditions are different due to introduction of a geometric model can be solved.
Referring to fig. 4, the present invention also provides a gas insulation apparatus stereoscopic monitoring method, including:
and step 203, identifying and processing the monitoring information of the information integration layer, and performing automatic monitoring control and alarm.
The invention adopts the further technical scheme that the sensor layer arranged on the GIS equipment acquires the monitoring information of the GIS equipment; the method specifically comprises the following steps:
an ultraviolet partial discharge sensor arranged in the GIS equipment detects the partial discharge condition of the GIS equipment;
an SF6 gas leakage monitoring module arranged outside the GIS equipment monitors the SF6 gas leakage condition;
monitoring an ultrahigh frequency signal of the GIS equipment through an ultrahigh frequency sensor;
and the transformer substation is patrolled and examined by the transformer substation patrol and examine robot.
The further technical scheme of the invention is that the monitoring information of the GIS equipment is collected to an information integration layer; the method specifically comprises the following steps: monitoring information of GIS equipment collected by the sensor layer is uploaded to the server through a cable, and the server converts analog signals into digital signals and transmits the digital signals through the switch.
As a further technical solution of the present invention, the identifying and processing of the monitoring information of the information integration layer, and the automatic monitoring control and alarm are specifically comprised of:
the information acquisition module receives monitoring information uploaded by the server;
the user management module is used for logging in and operating and managing a user;
the data management module carries out modeling management on the monitoring information and the user information;
the signal decoding processing module classifies, decodes and identifies the monitoring signals;
the database stores the monitoring information;
the main control module is responsible for coordinating the operation of the whole system, receiving and receiving the login and operation of the user, coordinating the display and storage of information,
and the information interaction module displays the monitoring processing information and the user information through a human-computer interaction interface.
The invention can detect the trace leakage of SF6 gas with high sensitivity and carry out accurate positioning, ensures the personal safety of operators, reduces the economic loss caused by equipment faults, improves the power supply reliability, can greatly reduce the labor intensity of offline live detection, saves the labor cost, saves the cost in the aspects of maintenance and recovery of power grid tripping accidents, prevents the emission of strong greenhouse effect gas and has good economic and social benefits.
The present invention has been described in detail, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge of those skilled in the art. Many other changes and modifications may be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited to the specific embodiments, but only by the scope of the appended claims.
Claims (10)
1. Three-dimensional monitoring system of gas-insulated equipment, its characterized in that includes:
the sensor layer is arranged on the GIS equipment and used for acquiring signal information of a receiving end;
the information integration layer is used for acquiring monitoring information of all the sensors and transmitting the monitoring information to a background;
and the background monitoring layer is used for processing signals of all the sensors, identifying the signals of the sensors by a signal identification means and carrying out digital processing so as to realize automatic monitoring and alarm.
2. The stereoscopic monitoring system of gas-insulated equipment of claim 1, characterized in that the sensor layer comprises:
the ultraviolet partial discharge sensor is arranged in the GIS equipment and used for detecting the partial discharge condition of the GIS equipment;
the SF6 gas leakage monitoring module is arranged on the outer side of the GIS equipment and is used for monitoring the SF6 gas leakage condition;
the ultrahigh frequency sensor is used for monitoring ultrahigh frequency signals of the GIS equipment;
a transformer substation inspection robot is a mobile device for inspecting a transformer substation.
3. The stereoscopic monitoring system of a gas-insulated device of claim 1, characterized in that the information integration layer comprises:
a server for receiving the analog signal of the sensor layer through the cable and converting the digital signal,
and the exchanger transmits the data signals converted by the server to the background monitoring platform through a TCP/IP protocol.
4. The stereoscopic monitoring system of gas-insulated equipment of claim 1, characterized in that the background monitoring layer comprises:
the main control module is responsible for coordinating the operation of the whole system, receiving and receiving the login and operation of the user, coordinating the display and storage of information,
the user management module is used for login and operation management of a user;
an information interaction module which displays the monitoring processing information and the user information through a human-computer interaction interface,
the data management module is used for carrying out modeling management on the monitoring information and the user information;
the signal decoding processing module is used for classifying, decoding and identifying the monitoring signals;
the information acquisition module is used for receiving monitoring information uploaded by the server;
a database; for storing the monitoring information.
5. The gas insulation equipment stereoscopic monitoring system according to claim 2, wherein the SF6 gas leakage monitoring module monitors by a remote vision mode, wherein the infrared camera acquires a partial discharge signal of the GIS equipment, the partial discharge signal is sent to the server by a remote sensing signal, and the server uploads the partial discharge signal to the background monitoring platform by the remote sensing signal.
6. Gas insulation according to claim 4 1 A three-dimensional monitoring system for equipment, characterized in thatThe data management module further comprises: a physical mechanism + perceptual process model, the physical mechanism + perceptual process model comprising:
a GIS equipment three-dimensional model, a three-dimensional geometric model of the equipment is constructed, the display is realized by combining with real scene data,
and the monitoring, analyzing and positioning module is used for reducing the order of the model and analyzing and positioning the model through external parameters.
7. Method for the stereoscopic monitoring of a gas-insulated apparatus, characterized in that a stereoscopic monitoring system of a gas-insulated apparatus according to any of claims 1-6 is used, comprising:
a sensor layer arranged on the GIS equipment collects monitoring information of the GIS equipment;
collecting monitoring information of the GIS equipment to an information integration layer;
and identifying and processing the monitoring information of the information integration layer, and performing automatic monitoring control and warning.
8. The stereoscopic monitoring method for the gas insulated equipment according to claim 7, wherein the sensor layer installed on the GIS equipment collects monitoring information of the GIS equipment; the method specifically comprises the following steps:
an ultraviolet partial discharge sensor arranged in the GIS equipment detects the partial discharge condition of the GIS equipment;
an SF6 gas leakage monitoring module arranged outside the GIS equipment monitors the SF6 gas leakage condition;
monitoring an ultrahigh frequency signal of the GIS equipment through an ultrahigh frequency sensor;
and the transformer substation is patrolled and examined by the transformer substation patrol and examine robot.
9. The gas insulated device stereo monitoring method according to claim 7, wherein the monitoring information of the GIS device is collected to an information integration layer; the method specifically comprises the following steps: monitoring information of GIS equipment collected by the sensor layer is uploaded to the server through a cable, and the server converts analog signals into digital signals and transmits the digital signals through the switch.
10. The three-dimensional monitoring method for the gas insulation equipment according to claim 7, wherein the identifying and processing of the monitoring information of the information integration layer and the automatic monitoring control and alarm are performed, and specifically comprises:
the information acquisition module receives monitoring information uploaded by the server;
the user management module is used for logging in and operating and managing a user;
the data management module carries out modeling management on the monitoring information and the user information;
the signal decoding processing module classifies, decodes and identifies the monitoring signals;
the database stores the monitoring information;
the main control module is responsible for coordinating the operation of the whole system, receiving and receiving the login and operation of the user, coordinating the display and storage of information,
information interaction module through man-machine interaction interface 2 And displaying the monitoring processing information and the user information.
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