CN108759687B - Displacement monitoring system and method of GIS equipment - Google Patents
Displacement monitoring system and method of GIS equipment Download PDFInfo
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- CN108759687B CN108759687B CN201810921600.XA CN201810921600A CN108759687B CN 108759687 B CN108759687 B CN 108759687B CN 201810921600 A CN201810921600 A CN 201810921600A CN 108759687 B CN108759687 B CN 108759687B
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 61
- 238000012544 monitoring process Methods 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000012806 monitoring device Methods 0.000 claims abstract description 45
- 230000005540 biological transmission Effects 0.000 claims abstract description 26
- 230000002159 abnormal effect Effects 0.000 claims abstract description 18
- 238000004891 communication Methods 0.000 claims description 29
- 125000006850 spacer group Chemical group 0.000 claims description 6
- 238000005259 measurement Methods 0.000 abstract description 14
- 238000012423 maintenance Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 8
- 238000012545 processing Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 230000005856 abnormality Effects 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 238000011897 real-time detection Methods 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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- H02J13/0013—
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
Abstract
The invention provides a displacement monitoring system and a displacement monitoring method of GIS equipment; the system comprises a laser ranging device, a data transmission device and a monitoring device which are connected in sequence; the laser ranging device is arranged on the inner wall of the bus sleeve of the GIS equipment; the laser ranging device is used for collecting distance data between appointed position points in the bus sleeve; the data transmission device is used for transmitting the distance data to the monitoring device; the monitoring device is used for displaying the distance data, and outputting an alarm signal to prompt a user to operate and maintain the bus sleeve if the distance data is abnormal. According to the invention, the displacement of the bus sleeve in the GIS equipment can be detected in real time in a laser ranging mode, and compared with a manual measurement mode, the measurement convenience and the real-time performance are better, meanwhile, the GIS equipment in a larger range can be detected more comprehensively, and the overall stability of a power supply system is facilitated.
Description
Technical Field
The invention relates to the technical field of power systems, in particular to a displacement monitoring system and method of GIS equipment.
Background
With the promotion of smart power grids, a large number of substations stand up, and with the improvement of technology and the improvement of land cost, a gas insulated metal full-closed combined electrical apparatus (GAS insulated SWITCHGEAR, abbreviated as GIS) is widely applied. However, in severe northwest weather and larger day-night temperature difference, the conditions of equipment air leakage, internal equipment cracking and the like caused by thermal expansion and cold contraction of a GIS are extremely easy to occur, so that the equipment is forced to stop running; therefore, operation, maintenance and overhauling personnel need to check the displacement of the GIS periodically or irregularly so as to ensure that hidden trouble of equipment fault can be found in advance, and the outage range is reduced in an effort, so that the system stability is improved.
However, the conventional GIS displacement measurement and maintenance have the following problems: because of the large number of substations, all stations cannot be considered in a short time, and more people need to be invested for measurement; the manual measurement has periodicity, and the on-site GIS equipment cannot be detected in real time; because of the uneven levels of the operation and maintenance personnel, such as low technical level, experience, risk awareness and the like, misjudgment is easy to occur, and abnormality cannot be found in time; in special cases, such as night, weather with sudden drop of air temperature, rain and snow weather, etc., operation and maintenance personnel cannot measure the total station in time.
Aiming at the problems that the existing GIS equipment displacement monitoring is mostly realized by manual inspection, the labor cost is high, the instantaneity is poor and misjudgment is easy to occur, no effective solution is provided yet.
Disclosure of Invention
Therefore, the invention aims to provide a displacement monitoring system and a displacement monitoring method for GIS equipment, so as to improve the convenience and instantaneity of displacement measurement, and simultaneously realize more comprehensive detection of the GIS equipment in a larger range so as to improve the overall stability of a power supply system.
In a first aspect, an embodiment of the present invention provides a displacement monitoring system for a GIS device, where the system includes a laser ranging device, a data transmission device, and a monitoring device that are sequentially connected; the laser ranging device is arranged on the inner wall of the bus sleeve of the GIS equipment; the laser ranging device is used for collecting distance data between appointed position points in the bus sleeve; the data transmission device is used for transmitting the distance data to the monitoring device; the monitoring device is used for displaying the distance data, and outputting an alarm signal to prompt a user to operate and maintain the bus sleeve if the distance data is abnormal.
In a preferred embodiment of the present invention, the laser ranging device includes a plurality of pairs of laser ranging sensors and opposite reflecting plates corresponding to the laser ranging sensors; wherein, each pair of laser ranging sensors and the corresponding opposite-end reflecting plate are positioned on one diameter of the cross section of the bus sleeve; the pairs of laser ranging sensors and the corresponding opposite-end reflecting plates are uniformly distributed on the cross section of the bus sleeve.
In a preferred embodiment of the present invention, the laser ranging device includes three pairs of laser ranging sensors and opposite reflecting plates corresponding to the laser ranging sensors.
In a preferred embodiment of the present invention, the laser ranging device further includes a signal processor; the signal processor is connected with the laser ranging sensor; the laser ranging sensor is used for transmitting laser signals to the corresponding opposite-end reflecting plate; the opposite end reflecting plate reflects the laser signals to form scattered light; the laser ranging sensor is also used for receiving scattered light and outputting the time difference between the emitted laser signal and the received scattered light to the signal processor; the signal processor is used for receiving the time difference and outputting distance data corresponding to the time difference.
In a preferred embodiment of the present invention, the signal processor is connected to a plurality of laser ranging sensors, respectively.
In a preferred embodiment of the present invention, the data transmission device includes a communication module and a switch module that are connected to each other; the communication module is connected with the laser ranging device; the switch module is connected with the monitoring device; the communication module is used for transmitting the distance data to the switch module; the switch module is used for realizing data exchange of the distance data in the Ethernet and finally transmitting the distance data to the monitoring device.
In a preferred embodiment of the present invention, the switch module includes a bay level switch and a station control layer switch that are connected to each other; the bay switch is connected with the communication module; the station control layer exchanger is connected with the monitoring device; the bay layer switch is used for receiving the distance data of each interval of the transformer substation and sending the distance data to the station control layer switch; the station-controlled layer switch is used for uploading the received distance data to the monitoring device.
In a preferred embodiment of the present invention, the communication module includes an RS232 communication module.
In a preferred embodiment of the present invention, the monitoring device includes a monitoring host, a display screen and an alarm; the monitoring host is respectively connected with the display screen and the alarm; the monitoring host is used for receiving the distance data and sending the distance data to the display screen for display; the monitoring host is also used for judging whether the distance data is abnormal or not, and if so, the alarm is triggered to alarm.
In a second aspect, an embodiment of the present invention provides a displacement monitoring method of a GIS device, where the method is applied to a displacement monitoring system of the GIS device; the method comprises the following steps: the laser ranging device collects distance data between appointed position points in the bus sleeve; the data transmission device transmits the distance data to the monitoring device; the monitoring device is used for displaying the distance data, and outputting an alarm signal to prompt a user to operate and maintain the bus sleeve if the distance data is abnormal.
In a third aspect, an embodiment of the present invention provides a GIS device, where the GIS device includes a GIS device body, and further includes a displacement monitoring system of the GIS device.
The embodiment of the invention has the following beneficial effects:
according to the displacement monitoring system and method for the GIS equipment, provided by the embodiment of the invention, the laser ranging device is arranged on the inner wall of the bus sleeve of the GIS equipment, and distance data between designated position points inside the bus sleeve are collected through the laser ranging device; transmitting the distance data to a monitoring device through a data transmission device; the monitoring device is used for displaying the distance data, and if the distance data is abnormal, an alarm signal is output to prompt a user to operate and maintain the bus sleeve. Can real-time detection busbar sheathed tube displacement in the GIS equipment through laser rangefinder's mode, compare in manual measurement's mode, it is better to measure convenience and instantaneity, simultaneously, can carry out comparatively comprehensive detection to the GIS equipment in the great scope, is favorable to the holistic stability of power supply system.
Additional features and advantages of the invention will be set forth in the description which follows, or in part will be obvious from the description, or may be learned by practice of the invention.
In order to make the above objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a displacement monitoring system of a GIS device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a displacement monitoring system of another GIS device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a laser ranging device in another displacement monitoring system of GIS device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a laser ranging device in another displacement monitoring system of GIS device according to an embodiment of the present invention;
fig. 5 is a schematic diagram illustrating light transmission between a laser ranging sensor and an opposite reflecting plate in another displacement monitoring system of GIS device according to an embodiment of the present invention;
fig. 6 is a flowchart of a displacement monitoring method of a GIS device according to an embodiment of the present invention;
fig. 7 is a schematic diagram of signal flow in a displacement monitoring system of a GIS device.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are 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.
Considering the problems that the existing GIS equipment displacement monitoring is mostly realized by manual inspection, the labor cost is high, the real-time performance is poor, and misjudgment is easy to occur, the embodiment of the invention provides a displacement monitoring system and a displacement monitoring method of GIS equipment, and the technology can be applied to GIS equipment of a power grid, a transformer substation and the like.
For the convenience of understanding the present embodiment, first, a displacement monitoring system of a GIS device disclosed in the present embodiment will be described in detail. As shown in fig. 1, the displacement monitoring system of the GIS device includes a laser ranging device 10, a data transmission device 11 and a monitoring device 12 which are sequentially connected; the laser ranging device 10 is arranged on the inner wall of a bus sleeve of GIS equipment;
the laser ranging device 10 is used for acquiring distance data between designated position points inside the bus sleeve; the data transmission device 11 is used for transmitting the distance data to the monitoring device; the monitoring device 12 is used for displaying the distance data, and outputting an alarm signal to prompt a user to operate and maintain the bus sleeve if the distance data is abnormal.
In general, the bus sleeve is easy to expand or contract in inner diameter due to expansion and contraction; the laser ranging device may include two devices, one of which is used for generating laser light and the other is used for receiving laser light or reflecting laser light; according to the propagation time of the laser, the distance between the two devices can be calculated; in order to accurately receive the laser signal and effectively measure the inner diameter of the inner wall of the bus sleeve, two devices of the laser ranging device can be respectively arranged on one diameter of the cross section of the inner wall of the bus sleeve.
The data transmission device can transmit the distance data to the monitoring device in a wired or wireless mode; the data transmission device comprises a data transmission network composed of a communication interface, a switch, a router and the like, and a plurality of laser ranging devices are transmitted to the monitoring device, so that workers can monitor the displacement of GIS equipment in a larger range at the same time.
The monitoring device can pre-store the displacement threshold value corresponding to each bus sleeve, after receiving the distance data, the distance data is compared with the corresponding displacement threshold value, and if the distance data exceeds the displacement threshold value, the bus sleeve at the position is proved to have larger displacement, and maintenance or replacement is needed.
According to the displacement monitoring system of the GIS equipment, provided by the embodiment of the invention, the laser ranging device is arranged on the inner wall of the bus sleeve of the GIS equipment, and distance data between designated position points inside the bus sleeve are collected through the laser ranging device; transmitting the distance data to a monitoring device through a data transmission device; the monitoring device is used for displaying the distance data, and if the distance data is abnormal, an alarm signal is output to prompt a user to operate and maintain the bus sleeve. Can real-time detection busbar sheathed tube displacement in the GIS equipment through laser rangefinder's mode, compare in manual measurement's mode, it is better to measure convenience and instantaneity, simultaneously, can carry out comparatively comprehensive detection to the GIS equipment in the great scope, is favorable to the holistic stability of power supply system.
The embodiment of the invention also provides another displacement monitoring system of the GIS equipment, which is realized on the basis of the system in the embodiment; as shown in fig. 2, the system comprises a laser ranging device 10, a data transmission device 11 and a monitoring device 12 which are connected in sequence; the laser ranging device 10 is arranged on the inner wall of a bus sleeve of GIS equipment.
Because the bus sleeve of the GIS equipment is in a circular cylinder shape, the deformation and displacement directions are variable, and in order to monitor the positions of the bus sleeve in all directions, the laser ranging device comprises a plurality of pairs of laser ranging sensors 101 and opposite end reflecting plates 102 corresponding to the laser ranging sensors; wherein, each pair of laser ranging sensors and the corresponding opposite end reflecting plate are positioned on one diameter of the cross section of the bus bar sleeve 30; the pairs of laser ranging sensors and the corresponding opposite-end reflecting plates are uniformly distributed on the cross section of the bus sleeve.
Taking two pairs of laser ranging sensors and opposite-end reflecting plates corresponding to the laser ranging sensors as an example, as shown in fig. 3, each pair of laser ranging sensors and the opposite-end reflecting plates are positioned on the same straight line with the circle center of the cross section circle of the bus sleeve; in order to achieve the purpose of uniform distribution, one pair of laser ranging sensors and the opposite end reflecting plate form an angle of 90 degrees with the other pair of laser ranging sensors and the opposite end reflecting plate.
Fig. 4 shows another laser ranging apparatus including three pairs of laser ranging sensors and opposite reflecting plates corresponding to the laser ranging sensors. The three pairs of the laser ranging sensors are also uniformly distributed on the cross section of the bus sleeve, and the adjacent two pairs of the laser ranging sensors and the opposite-end reflecting plate form an angle of 60 degrees. Of course, more pairs of laser ranging sensors and corresponding opposite reflecting plates can be arranged on the cross section of one bus bar sleeve so as to more accurately measure the displacement of the bus bar sleeve.
Fig. 5 is a schematic diagram showing light transmission of a laser ranging sensor and an opposite reflecting plate in the laser ranging device; the laser ranging sensor and the opposite-end reflecting plate are oppositely arranged; the laser ranging sensor is provided with a laser transmitting part and a laser receiving part; the laser emitting component is used for emitting laser, and the laser returns to the laser receiving component after being reflected by the opposite-end reflecting plate; of course, since the opposite-end reflection plate is a diffuse reflection plate, the laser light receiving member can generally receive only a part of the laser light.
The laser ranging device also comprises a signal processor 103; the signal processor is connected with the laser ranging sensor 101; the laser ranging sensor is used for transmitting laser signals to the corresponding opposite-end reflecting plate; the opposite end reflecting plate reflects the laser signals to form scattered light; the laser ranging sensor is also used for receiving scattered light and outputting the time difference between the emitted laser signal and the received scattered light to the signal processor; the signal processor is used for receiving the time difference and outputting distance data corresponding to the time difference.
Specifically, the signal processor may be implemented by a data processing chip such as a single chip microcomputer, a DSP (Digital Signal Processing ) chip, or the like. In actual implementation, the signal processor may be connected to a plurality of laser ranging sensors. The signal processor may calculate the displacement data L by the following formula: l=vt/2; v is the laser transmission speed, and v can take a value of 3 x 10-8 m/s; t is the time difference between the emission of the laser signal and the reception of the scattered light.
The data transmission device includes a communication module 111 and a switch module 112 connected to each other; the communication module 111 is connected with the laser ranging device; the switch module 112 is connected with the monitoring device; the communication module 111 is configured to transmit the distance data to the switch module; the switch module 112 is configured to implement data exchange of the distance data in the ethernet, and finally transmit the distance data to the monitoring device.
In practical implementation, the communication module may be integrated with the signal processor, and the communication module may be an RS232 communication module, or other serial communication modules such as an RS232 communication module, or may be a parallel communication module.
If the scale of the GIS equipment monitored by the system is large, the monitoring device may need to collect and monitor the distance data on the bus bushings at the same time, and at this time, the data transmission device needs to have a large scale so as to realize data exchange and transmission in a large range; based on this, the above-mentioned switch module includes a bay level switch 112a and a station level switch 112b connected to each other; the spacer layer switch 112a is connected with the communication module; the station-controlled layer switch 112b is connected with the monitoring device; the bay level switch 112a is configured to receive distance data of each interval of the substation, and send the distance data to the station control layer switch 112b; the station-controlled layer switch is used for uploading the received distance data to the monitoring device.
Specifically, the bay level switch is arranged at a bay level of the substation automation monitoring system, and the station control layer switch is arranged at a background of the substation automation monitoring system; typically, the bay level contains data acquisition, protection and control devices for those equipment operating in the substation site, such as comprehensive protection relays, protection control cabinets, and multifunctional electricity meters. The station control layer generally comprises a computer, a printer monitoring screen and the like, and is mainly used for carrying out application development on collected data so as to be displayed on a terminal screen; the remote control command is also sent out from the station control layer, and finally sent to the spacer layer for execution through the communication layer.
Further, the monitoring device includes a monitoring host 121, a display 122 and an alarm 123; the monitoring host 121 is respectively connected with a display screen 122 and an alarm 123; the monitoring host 121 is configured to receive the distance data, and send the distance data to the display screen for display; the monitoring host 121 is also used for judging whether the distance data is abnormal, and if so, triggering an alarm to alarm.
In actual implementation, if the distance data is abnormal, the distance data can also be marked in a highlighting and flickering mode on a display screen directly so as to provide attention for operation and maintenance personnel. The alarm can be an audible and visual alarm. In addition, the monitoring host can be connected with a mobile terminal (such as a mobile phone) of the operation and maintenance personnel, and when the distance data is abnormal, an alarm signal is sent to the mobile terminal of the operation and maintenance personnel, and the operation and maintenance personnel is timely reminded to maintain.
According to the displacement monitoring system of the GIS equipment, the displacement of the bus sleeve in the GIS equipment can be detected in real time in a laser ranging mode, and compared with a manual measurement mode, the displacement monitoring system is better in measurement convenience and real-time performance, meanwhile, the GIS equipment in a larger range can be comprehensively detected, and the overall stability of a power supply system is facilitated.
The embodiment of the invention also provides a displacement monitoring method of the GIS equipment, which is applied to the displacement monitoring system of the GIS equipment; as shown in fig. 6, the method includes the steps of:
step S602, acquiring distance data between designated position points inside a bus sleeve by a laser ranging device;
step S604, the data transmission device transmits the distance data to the monitoring device;
step S606, the monitoring device is used for displaying the distance data, and outputting an alarm signal to prompt a user to operate and maintain the bus sleeve if the distance data is abnormal.
FIG. 7 is a schematic diagram showing the signal flow in a displacement monitoring system of a GIS device; the laser ranging sensor emits a laser signal, and the laser signal is reflected back to scattered light by the opposite-end reflecting plate; the laser ranging sensor sends the reflection time t between the generated laser signal and the reflected scattered light to a sensor processing unit (corresponding to the signal processor), the sensor processing unit calculates the measurement distance (namely the distance data), and sends the measurement distance to a monitoring background (corresponding to the monitoring device) through an RS232 communication module, a spacer layer switch and a station control layer switch; the RS232 communication module and the spacer layer exchanger can be connected through a 232 communication line, and the spacer layer exchanger, the station control layer exchanger and the monitoring background are connected through an Ethernet communication line; the monitoring background judges whether the measured distance exceeds a preset offset reference value, if so, an abnormal alarm is triggered, and after the staff receives the abnormal alarm, the staff performs manual field inspection and reporting.
According to the displacement monitoring method of the GIS equipment, the laser ranging device is used for collecting distance data between the designated position points in the bus sleeve; transmitting the distance data to a monitoring device through a data transmission device; the monitoring device is used for displaying the distance data, and if the distance data is abnormal, an alarm signal is output to prompt a user to operate and maintain the bus sleeve. Can real-time detection busbar sheathed tube displacement in the GIS equipment through laser rangefinder's mode, compare in manual measurement's mode, it is better to measure convenience and instantaneity, simultaneously, can carry out comparatively comprehensive detection to the GIS equipment in the great scope, is favorable to the holistic stability of power supply system.
The embodiment of the invention also provides GIS equipment, which comprises a GIS equipment body and the displacement monitoring system of the GIS equipment.
The GIS equipment provided by the embodiment of the invention has the same technical characteristics as the displacement monitoring system of the GIS equipment provided by the embodiment, so that the same technical problems can be solved, and the same technical effects can be achieved.
The displacement monitoring system, the displacement monitoring method and the GIS equipment provided by the embodiment of the invention can be used for measuring the displacement of each section of sleeve of the total station GIS equipment in real time, processing the measured result, transmitting the processed result to the monitoring background system for being consulted by operation and maintenance personnel, and realizing the real-time alarming of sudden change of the large displacement through system configuration so as to enable the operation and maintenance personnel to be in real time.
The displacement monitoring system and method of the GIS equipment and the GIS equipment provided by the embodiment of the invention save a great deal of manpower and improve the working efficiency; the displacement of the total station GIS equipment can be measured in real time; the measurement is not delayed due to bad weather; displacement abnormality can be found timely, and abnormality can be found conveniently and early; the system has a real-time alarm signal, so that operation and maintenance personnel do not need to monitor the disc all the time; the abnormal system can not be found out in time due to the fact that personnel quality is different; the working intensity of operation and maintenance overhaulers is reduced; the existing comprehensive automation system of the transformer substation is fully utilized, and a large amount of funds and equipment are not required to be input. .
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process of the above-described GIS device may refer to the corresponding process in the foregoing embodiment of the displacement monitoring system of the GIS device, which is not described herein again.
In addition, in the description of embodiments of the present invention, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above examples are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention, but it should be understood by those skilled in the art that the present invention is not limited thereto, and that the present invention is described in detail with reference to the foregoing examples: any person skilled in the art may modify or easily conceive of the technical solution described in the foregoing embodiments, or perform equivalent substitution of some of the technical features, while remaining within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention, and are intended to be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. The displacement monitoring system of the GIS equipment is characterized by comprising a laser ranging device, a data transmission device and a monitoring device which are connected in sequence; the laser ranging device is arranged on the inner wall of the bus sleeve of the GIS equipment;
the laser ranging device is used for acquiring distance data between specified position points inside the bus sleeve; the data transmission device is used for transmitting the distance data to the monitoring device; the monitoring device is used for displaying the distance data, and outputting an alarm signal to prompt a user to operate and maintain the bus sleeve if the distance data is abnormal;
the laser ranging device comprises a plurality of pairs of laser ranging sensors and opposite-end reflecting plates corresponding to the laser ranging sensors;
wherein, each pair of the laser ranging sensors and the corresponding opposite-end reflecting plate are positioned on one diameter of the cross section of the bus sleeve; the pairs of laser ranging sensors and the corresponding opposite-end reflecting plates are uniformly distributed on the cross section of the bus sleeve;
the laser ranging device comprises three pairs of laser ranging sensors and opposite-end reflecting plates corresponding to the laser ranging sensors; the three pairs of laser ranging sensors and opposite-end reflecting plates corresponding to the laser ranging sensors are uniformly distributed on the cross section of the bus sleeve, and two adjacent pairs of laser ranging sensors and opposite-end reflecting plates form an angle of 60 degrees.
2. The system of claim 1, wherein the laser ranging device further comprises a signal processor; the signal processor is connected with the laser ranging sensor;
the laser ranging sensor is used for transmitting laser signals to the corresponding opposite-end reflecting plate; the opposite-end reflecting plate reflects the laser signals to form scattered light; the laser ranging sensor is also used for receiving the scattered light and outputting the time difference between the emission of the laser signal and the receiving of the scattered light to the signal processor; the signal processor is used for receiving the time difference and outputting distance data corresponding to the time difference.
3. The system of claim 2, wherein the signal processor is respectively coupled to a plurality of the laser ranging sensors.
4. The system of claim 1, wherein the data transmission device comprises a communication module and a switch module connected to each other; the communication module is connected with the laser ranging device; the switch module is connected with the monitoring device;
the communication module is used for transmitting the distance data to the switch module; the switch module is used for realizing data exchange of the distance data in the Ethernet and finally transmitting the distance data to the monitoring device.
5. The system of claim 4, wherein the switch module comprises a bay level switch and a station level switch connected to each other; the spacer layer exchanger is connected with the communication module; the station control layer switch is connected with the monitoring device;
the bay level switch is used for receiving the distance data of each interval of the transformer substation and sending the distance data to the station control layer switch; the station-controlled layer switch is used for uploading the received distance data to the monitoring device.
6. The system of claim 4, wherein the communication module comprises an RS232 communication module.
7. The system of claim 1, wherein the monitoring device comprises a monitoring host, a display screen, and an alarm; the monitoring host is respectively connected with the display screen and the alarm;
the monitoring host is used for receiving the distance data and sending the distance data to the display screen for display; and the monitoring host is also used for judging whether the distance data is abnormal or not, and if so, triggering the alarm to alarm.
8. A method for monitoring displacement of a GIS device, characterized in that the method is applied to the system of any one of claims 1-7; the method comprises the following steps:
the laser ranging device collects distance data between appointed position points in the bus sleeve;
the data transmission device transmits the distance data to the monitoring device;
the monitoring device is used for displaying the distance data, and outputting an alarm signal to prompt a user to operate and maintain the bus sleeve if the distance data are abnormal.
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| CN114061460B (en) * | 2021-11-18 | 2023-06-09 | 内蒙古工业大学 | Axial displacement monitoring device for gear box of main shaft built-in wind generating set |
| CN115342734A (en) * | 2022-08-11 | 2022-11-15 | 北京凌天智能装备集团股份有限公司 | Double-path laser displacement monitoring system based on embedded operating system |
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