CN114923515A - Temperature early warning method, device, system and medium for power transmission conductor - Google Patents
Temperature early warning method, device, system and medium for power transmission conductor Download PDFInfo
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Abstract
The invention discloses a temperature early warning method, equipment, a system and a medium for a transmission conductor, wherein the method comprises the following steps: acquiring temperature distribution data and current data of the power transmission conductor, and determining the corresponding equivalent temperature of the power transmission conductor according to the temperature distribution data and the current data; establishing a dynamic capacity-increasing model corresponding to the power transmission conductor according to equivalent temperature and current data corresponding to the power transmission conductor, and optimizing the dynamic capacity-increasing model according to multiple items of environment monitoring data corresponding to the power transmission conductor; and determining the current-carrying capacity corresponding to the transmission conductor according to the optimized dynamic capacity-increasing model, and sending out an early warning signal corresponding to the transmission conductor according to the current-carrying capacity. The technical scheme of the embodiment of the invention can improve the accuracy of the temperature monitoring result of the power transmission conductor and realize accurate early warning on the working condition of the power transmission conductor.
Description
Technical Field
The embodiment of the invention relates to the technical field of power transmission networks, in particular to a temperature early warning method, equipment, a system and a medium for a power transmission conductor.
Background
With the development of industrial technology, the demand on electric energy is higher and higher, the on-line monitoring of the temperature of the transmission conductor can not only know the operation condition of the front-end transmission line, but also comprehensively collect and accumulate the real-time temperature of the live conductor in dynamic capacity increasing, overload test and heavy load sections, and provide a large amount of real basic data for the design, operation, maintenance and other aspects of the transmission line.
In the existing power transmission conductor temperature monitoring method, the temperature of the surface of a conductor is only monitored, so that the accuracy of a power transmission conductor temperature monitoring result is low, and the actual working condition of the power transmission conductor cannot be accurately judged. Therefore, a new scheme for monitoring the temperature of the transmission conductor and performing early warning according to the monitoring result is to be provided, so as to realize the intellectualization of the transmission line management.
Disclosure of Invention
The embodiment of the invention provides a temperature early warning method, equipment, a system and a medium for a power transmission conductor, which can improve the accuracy of a temperature monitoring result of the power transmission conductor and realize accurate early warning on the working condition of the power transmission conductor.
In a first aspect, an embodiment of the present invention provides a temperature early warning method for a power transmission conductor, where the method includes:
acquiring temperature distribution data and current data of a power transmission conductor, and determining an equivalent temperature corresponding to the power transmission conductor according to the temperature distribution data and the current data;
establishing a dynamic capacity-increasing model corresponding to the power transmission conductor according to equivalent temperature and current data corresponding to the power transmission conductor, and optimizing the dynamic capacity-increasing model according to multiple items of environment monitoring data corresponding to the power transmission conductor;
and determining the current-carrying capacity corresponding to the transmission conductor according to the optimized dynamic capacity-increasing model, and sending out an early warning signal corresponding to the transmission conductor according to the current-carrying capacity.
Optionally, determining the equivalent temperature corresponding to the power transmission conductor according to the temperature distribution data and the current data includes:
establishing a three-dimensional simulation model corresponding to the power transmission conductor, and simulating the three-dimensional simulation model by using the temperature distribution data and the current data to obtain an incidence relation between the temperature distribution data and the current data;
and determining the equivalent temperature corresponding to the power transmission conductor according to the incidence relation between the temperature distribution data and the current data.
Optionally, establishing a dynamic capacity-increasing model corresponding to the power transmission conductor according to the equivalent temperature and current data corresponding to the power transmission conductor includes:
and acquiring a heat balance equation corresponding to the transmission conductor, and inputting the equivalent temperature and current data into the heat balance equation to obtain a dynamic capacity increasing model corresponding to the transmission conductor.
Optionally, optimizing the dynamic capacity-increasing model according to multiple items of environmental monitoring data corresponding to the power transmission conductor includes:
establishing a finite element model corresponding to the power transmission conductor, and inputting the multiple items of environment monitoring data into the finite element model to obtain an influence result of each item of environment monitoring data on temperature distribution data;
and optimizing the dynamic capacity increasing model according to the influence result of each item of environment monitoring data on the temperature distribution data.
Optionally, the temperature distribution data includes: surface temperature distribution data of the power transmission conductor, and cross-sectional temperature distribution data of the power transmission conductor;
the environmental monitoring data includes: wind speed, wind direction, ambient temperature data, ambient humidity data, expansion coefficient and solar radiation intensity corresponding to the power transmission conductors.
In a second aspect, an embodiment of the present invention further provides an electronic device, where the electronic device includes:
one or more processors;
storage means for storing one or more programs;
the one or more programs, when executed by the one or more processors, cause the one or more processors to perform the method for temperature warning of a power transmission conductor provided by any of the embodiments of the present invention when the programs are executed by the one or more processors.
In a third aspect, an embodiment of the present invention further provides a temperature early warning system for a power transmission line, where the system includes the electronic device in any embodiment, and further includes:
the temperature acquisition module is used for acquiring surface temperature distribution data and section temperature distribution data of the power transmission conductor;
the current acquisition module is used for acquiring current data of the transmission conductor;
the wind speed detection module is used for detecting the wind speed and the wind direction of the environment around the power transmission conductor;
the environment temperature and humidity detection module is used for detecting environment temperature data and environment humidity data corresponding to the power transmission conductors;
the displacement detection module is used for detecting the displacement conditions of the transmission conductors at different temperatures and calculating the expansion coefficients of the transmission conductors according to the displacement conditions;
and the sunshine intensity detection module is used for detecting the sunshine intensity corresponding to the transmission conductor.
In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored, and when the computer program is executed by a processor, the computer program implements the method for early warning of the temperature of a power transmission conductor according to any embodiment of the present invention.
According to the technical scheme of the embodiment of the invention, the accuracy of the temperature monitoring result of the power transmission conductor can be improved and the accurate early warning of the working condition of the power transmission conductor can be realized by acquiring the temperature distribution data and the current data of the power transmission conductor, determining the equivalent temperature corresponding to the power transmission conductor according to the temperature distribution data and the current data, establishing a dynamic capacity increasing model corresponding to the power transmission conductor according to the equivalent temperature and the current data corresponding to the power transmission conductor, optimizing the dynamic capacity increasing model according to multiple items of environment monitoring data corresponding to the power transmission conductor, determining the current-carrying capacity corresponding to the power transmission conductor according to the optimized dynamic capacity increasing model, and sending an early warning signal corresponding to the power transmission conductor according to the current-carrying capacity.
It should be understood that the statements in this section do not necessarily identify key or critical features of the embodiments of the present invention, nor do they necessarily limit the scope of the invention. Other features of the present invention will become apparent from the following description.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a flowchart of a method for early warning a temperature of a power transmission conductor according to an embodiment of the present invention;
fig. 2 is a flowchart of another temperature warning method for power conductors according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of an electronic device that implements a temperature warning method for a power transmission conductor according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a temperature warning system for a power transmission conductor according to a fourth embodiment of the present invention;
fig. 5 is a schematic structural diagram of another temperature warning system for power conductors according to a fifth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a flowchart of a temperature warning method for a power transmission conductor according to an embodiment of the present invention, where the embodiment is applicable to monitoring and warning a temperature of a power transmission conductor, and the method may be executed by a temperature warning device for a power transmission conductor. The temperature early warning device for the power transmission line can be implemented by software and/or hardware, and can be generally integrated in an electronic device (such as a terminal or a server) with a data processing function, and specifically includes the following steps:
In this embodiment, a plurality of temperature sensors may be respectively disposed at different positions on the power transmission conductor to acquire temperature distribution data of the power transmission conductor by the plurality of temperature sensors. In addition to this, a current detection module may be deployed on the power conductor to collect current data of the power conductor by means of the current detection module. Specifically, temperature sensors may be respectively disposed at different positions on the surface and the cross section of the power transmission conductor, and the surface temperature distribution data and the cross section temperature distribution data of the power transmission conductor may be acquired by the plurality of temperature sensors.
In this step, after the temperature distribution data and the current data of the power transmission conductor are acquired, an association relationship between the temperature distribution data and the current data may be calculated, and then an equivalent temperature corresponding to the power transmission conductor may be calculated according to the association relationship.
The advantage of this arrangement is that compared with the prior art in which only the conductor surface temperature is monitored, the accuracy of the transmission conductor temperature monitoring result can be improved by calculating the equivalent temperature corresponding to the transmission conductor.
In this embodiment, a model (that is, a dynamic capacity-increasing model) for analyzing the transmission capacity of the power transmission conductor may be established according to the equivalent temperature and current data corresponding to the power transmission conductor, and the dynamic capacity-increasing model may be used to monitor the influence of the environmental condition on the temperature of the power transmission conductor. After the dynamic capacity-increasing model is established, the dynamic capacity-increasing model can be optimized according to the influence of environmental conditions on the temperature of the power transmission conductor and environmental monitoring data corresponding to the power transmission conductor.
In a specific embodiment, the environmental monitoring data may include: wind speed, wind direction, ambient temperature data, ambient humidity data, expansion coefficient and solar radiation intensity corresponding to the power transmission conductors.
In this embodiment, after the dynamic capacity-increasing model is optimized, the current-carrying capacity corresponding to the power transmission conductor under the current environmental condition may be calculated according to the dynamic capacity-increasing model, and if the current-carrying capacity is greater than a preset current-carrying capacity threshold, an early warning signal corresponding to the power transmission conductor is sent.
In a specific embodiment, different levels of ampacity thresholds may be preset, and if the ampacity of the power transmission conductor is greater than a target ampacity threshold, a phase-alert signal matching the target ampacity threshold may be issued.
According to the technical scheme of the embodiment of the invention, the accuracy of the temperature monitoring result of the power transmission conductor can be improved and the accurate early warning of the working condition of the power transmission conductor can be realized by acquiring the temperature distribution data and the current data of the power transmission conductor, determining the equivalent temperature corresponding to the power transmission conductor according to the temperature distribution data and the current data, establishing a dynamic capacity increasing model corresponding to the power transmission conductor according to the equivalent temperature and the current data corresponding to the power transmission conductor, optimizing the dynamic capacity increasing model according to multiple items of environment monitoring data corresponding to the power transmission conductor, determining the current-carrying capacity corresponding to the power transmission conductor according to the optimized dynamic capacity increasing model, and sending an early warning signal corresponding to the power transmission conductor according to the current-carrying capacity.
Example two
This embodiment is a further refinement of the above embodiments, and the same or corresponding terms as those in the above embodiments are explained, and are not repeated herein. Fig. 2 is a flowchart of a temperature early warning method for a power transmission line provided in the second embodiment, the technical solution of the second embodiment may be combined with one or more methods in the solutions of the foregoing embodiments, as shown in fig. 2, the method provided in the second embodiment may further include:
and step 210, collecting temperature distribution data and current data of the power transmission conductor.
In this embodiment, a three-dimensional simulation model may be established by referring to the size of an actual power transmission line through three-dimensional modeling software such as CATIA, Solidworks, and pro, and then corresponding model parameters are given to the three-dimensional simulation model according to the temperature distribution data and the current data, so as to implement a simulation process of the three-dimensional simulation model. After the three-dimensional simulation model is simulated, the correlation between the temperature distribution data and the current data can be calculated according to the simulation result of the three-dimensional simulation model.
And step 230, determining the equivalent temperature corresponding to the power transmission conductor according to the association relationship between the temperature distribution data and the current data.
And 240, acquiring a heat balance equation corresponding to the power transmission conductor, and inputting the equivalent temperature and current data to the heat balance equation to obtain a dynamic capacity increasing model corresponding to the power transmission conductor.
In a specific embodiment, the heat balance equation corresponding to the power conductor may be expressed by the following equation:
I 2 R(t c )+Q s ＝h(t)(t c -t a )+Q r
wherein I is the allowable current carrying capacity of the transmission conductor, and R (t) c ) For power transmission conductor surface temperature is t c Ac resistance per unit length of transmission line, t a For the ambient temperature, Q, of the power transmission line r For the corresponding radiant heat-dissipating power, Q, of the power transmission line s The solar absorption power corresponding to the power transmission line, and h (t) the heat transfer coefficient corresponding to the power transmission line. The heat transfer coefficient is used to characterize the effect of environmental conditions on the temperature of the power conductor.
And 250, establishing a finite element model corresponding to the power transmission conductor, and inputting a plurality of items of environment monitoring data into the finite element model to obtain an influence result of each item of environment monitoring data on the temperature distribution data.
In this embodiment, a finite element model corresponding to the power transmission conductor may be established through preset simulation software. Specifically, when the finite element model corresponding to the power transmission line is established, the power transmission tower model can be established according to the actual shape and size of the power transmission tower, then the line model is established, and finally the insulator string model is established. Wherein the insulator string may be a connection member between the transmission tower and the transmission conductor.
In this step, after the finite element model corresponding to the power transmission line is established, a plurality of items of environmental monitoring data (e.g., wind speed, wind direction, environmental temperature data, environmental humidity data, expansion coefficient, sunlight intensity, etc.) can be input into the finite element model as model parameters to realize the simulation process of the finite element model. After the finite element model is simulated, the influence result of each item of environment monitoring data on the temperature distribution data can be calculated according to the simulation result.
And step 260, optimizing the dynamic capacity increasing model according to the influence result of each item of environment monitoring data on the temperature distribution data.
In this step, optionally, the heat transfer coefficient in the dynamic compatibilization model may be adjusted according to an influence result of each item of environment monitoring data on the temperature distribution data, so as to optimize the dynamic compatibilization model.
And 270, determining the current-carrying capacity corresponding to the power transmission conductor according to the optimized dynamic capacity-increasing model, and sending an early warning signal corresponding to the power transmission conductor according to the current-carrying capacity.
In this embodiment, by analyzing the dynamic capacity-increasing model of the conductor by using a finite element analysis method, the influence of complex environmental factors on the current-carrying capacity calculation result can be avoided, so that the accuracy of the current-carrying capacity calculation result can be improved, and accurate early warning on the working condition of the power transmission conductor can be realized.
The technical scheme of the embodiment of the invention comprises the steps of establishing a three-dimensional simulation model corresponding to the power transmission conductor by collecting temperature distribution data and current data of the power transmission conductor, simulating the three-dimensional simulation model by using the temperature distribution data and the current data to obtain an incidence relation between the temperature distribution data and the current data, determining equivalent temperature corresponding to the power transmission conductor according to the incidence relation between the temperature distribution data and the current data, obtaining a heat balance equation corresponding to the power transmission conductor, inputting the equivalent temperature and the current data into the heat balance equation to obtain a dynamic capacity expansion model, establishing a finite element model corresponding to the power transmission conductor, inputting a plurality of items of environment monitoring data into the finite element model to obtain an influence result of each item of environment monitoring data on the temperature distribution data, optimizing the dynamic capacity expansion model according to the influence result of each item of environment monitoring data on the temperature distribution data, according to the optimized dynamic capacity increasing model, the current carrying capacity corresponding to the power transmission conductor is determined, and the accuracy of the temperature monitoring result of the power transmission conductor can be improved by the technical means of sending out the early warning signal according to the current carrying capacity, so that accurate early warning on the working condition of the power transmission conductor is realized.
EXAMPLE III
FIG. 3 illustrates a block diagram of an electronic device 10 that may be used to implement an embodiment of the invention. Electronic devices are intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. The electronic device may also represent various forms of mobile devices, such as personal digital assistants, cellular phones, smart phones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be exemplary only, and are not meant to limit implementations of the inventions described and/or claimed herein.
As shown in fig. 3, the electronic device 10 includes at least one processor 11, and a memory communicatively connected to the at least one processor 11, such as a Read Only Memory (ROM)12, a Random Access Memory (RAM)13, and the like, wherein the memory stores a computer program executable by the at least one processor, and the processor 11 may perform various suitable actions and processes according to the computer program stored in the Read Only Memory (ROM)12 or the computer program loaded from the storage unit 18 into the Random Access Memory (RAM) 13. In the RAM 13, various programs and data necessary for the operation of the electronic apparatus 10 may also be stored. The processor 11, the ROM 12, and the RAM 13 are connected to each other via a bus 14. An input/output (I/O) interface 15 is also connected to the bus 14.
A number of components in the electronic device 10 are connected to the I/O interface 15, including: an input unit 16 such as a keyboard, a mouse, or the like; an output unit 17 such as various types of displays, speakers, and the like; a storage unit 18 such as a magnetic disk, optical disk, or the like; and a communication unit 19 such as a network card, modem, wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information/data with other devices via a computer network such as the internet and/or various telecommunication networks.
The processor 11 may be a variety of general and/or special purpose processing components having processing and computing capabilities. Some examples of processor 11 include, but are not limited to, a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), various specialized Artificial Intelligence (AI) computing chips, various processors running machine learning model algorithms, a Digital Signal Processor (DSP), and any suitable processor, controller, microcontroller, or the like. The processor 11 performs the various methods and processes described above, such as the temperature pre-warning method of the power conductor.
In some embodiments, the temperature warning method for a power conductor may be implemented as a computer program tangibly embodied in a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program may be loaded and/or installed onto the electronic device 10 via the ROM 12 and/or the communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the method for temperature warning of a power conductor described above may be performed. Alternatively, in other embodiments, processor 11 may be configured to perform the temperature pre-warning method of the power conductor by any other suitable means (e.g., by means of firmware).
Various implementations of the systems and techniques described here above may be implemented in digital electronic circuitry, integrated circuitry, Field Programmable Gate Arrays (FPGAs), Application Specific Integrated Circuits (ASICs), Application Specific Standard Products (ASSPs), system on a chip (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs that are executable and/or interpretable on a programmable system including at least one programmable processor, which may be special or general purpose, receiving data and instructions from, and transmitting data and instructions to, a storage system, at least one input device, and at least one output device.
Computer programs for implementing the methods of the present invention can be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the computer programs, when executed by the processor, cause the functions/acts specified in the flowchart and/or block diagram block or blocks to be performed. A computer program can execute entirely on a machine, partly on a machine, as a stand-alone software package partly on a machine and partly on a remote machine or entirely on a remote machine or server.
In the context of the present invention, a computer-readable storage medium may be a tangible medium that can contain, or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. A computer readable storage medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. Alternatively, the computer readable storage medium may be a machine readable signal medium. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
To provide for interaction with a user, the systems and techniques described here can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and a pointing device (e.g., a mouse or a trackball) by which a user can provide input to the electronic device. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic, speech, or tactile input.
The systems and techniques described here can be implemented in a computing system that includes a back-end component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such back-end, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: local Area Networks (LANs), Wide Area Networks (WANs), blockchain networks, and the Internet.
The computing system may include clients and servers. A client and server are generally remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server can be a cloud server, also called a cloud computing server or a cloud host, and is a host product in a cloud computing service system, so that the defects of high management difficulty and weak service expansibility in the traditional physical host and VPS service are overcome.
It should be understood that various forms of the flows shown above may be used, with steps reordered, added, or deleted. For example, the steps described in the present invention may be executed in parallel, sequentially, or in different orders, and are not limited herein as long as the desired result of the technical solution of the present invention can be achieved.
The above-described embodiments should not be construed as limiting the scope of the invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made in accordance with design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Example four
Fig. 4 is a schematic structural diagram of a temperature early warning system for a power transmission line according to a fourth embodiment of the present invention, where the system includes an electronic device 401 in any embodiment, and further includes a temperature acquisition module 402, a current acquisition module 403, a wind speed detection module 404, an environment temperature and humidity detection module 405, a displacement detection module 406, and a sunshine intensity detection module 407.
In this embodiment, the temperature collecting module 402 is configured to collect surface temperature distribution data and cross-section temperature distribution data of the power transmission conductor. Specifically, the temperature acquisition module 402 may include a plurality of temperature sensors, which may be respectively disposed at different positions on the surface and the cross section of the power transmission line, so as to acquire temperature distribution data corresponding to different positions on the power transmission line. The current collecting module 403, which may be a current sensor, is configured to collect current data of the power transmission line. The wind speed detecting module 404, which may be an anemometer, is configured to detect a wind speed and a wind direction of an environment around the power transmission line. The environment temperature and humidity detection module 405 may be a conventional temperature and humidity sensor, and is configured to detect environment temperature data and environment humidity data corresponding to the power transmission line. And a displacement detection module 406, configured to detect displacement conditions of the power transmission conductor at different temperatures, and calculate an expansion coefficient of the power transmission conductor according to the displacement conditions. The solar radiation intensity detection module 407 is specifically a solar radiation intensity detector for detecting the solar radiation intensity corresponding to the transmission line.
In a specific embodiment, the wind speed detection module 404, the ambient temperature and humidity detection module 405, and the sunshine intensity detection module 407 may be directly installed on the tower body of the power transmission tower, and the displacement detection module 406 may be installed on the power transmission line.
In this embodiment, the temperature acquisition module 402, the current acquisition module 403, the wind speed detection module 404, the ambient temperature and humidity detection module 405, the displacement detection module 406 and the solar radiation intensity detection module 407, the data collected by each can be sent to the electronic device 401 through a preset communication module, the temperature of the power transmission conductor is directly monitored and early warned by the electronic device 401 according to the data collected by each module, or the data collected by each module can be sent to the background monitoring device through a preset communication module by the electronic device 401, the temperature of the power transmission conductor is monitored and early warned by the background monitoring device according to the data collected by each module. The specific implementation manner can be set according to the actual situation, and the present embodiment does not limit this.
In a specific embodiment, the communication module may be a bluetooth module, an infrared module, a WIFI module, a mobile data module, or an LoRa wireless communication module, and the like, which is not limited in this embodiment.
In this embodiment, by deploying the temperature acquisition module, the current acquisition module, the wind speed detection module, the environment temperature and humidity detection module, the displacement detection module and the sunshine intensity detection module in the temperature early warning system of the power transmission conductor, the accuracy of the temperature monitoring result of the power transmission conductor can be improved, the influence of environmental conditions on the temperature of the power transmission conductor is analyzed, and accurate early warning is performed on the working condition of the power transmission conductor.
EXAMPLE five
Fig. 5 is a schematic structural diagram of a temperature warning system for a power transmission conductor in a fifth embodiment of the present invention, which is detailed based on the foregoing embodiment. In this embodiment, the system further includes: and the stray energy collection module 501 is used for supplying power to the temperature collection module 402, the current collection module 403, the wind speed detection module 404, the environment temperature and humidity detection module 405, the displacement detection module 406 and the sunshine intensity detection module 407.
In one embodiment, the stray energy collecting module 501 may be a current transformer power supply module for collecting energy of an alternating magnetic field and an alternating electric field and converting the energy into weak direct current. The device has the advantages that the operation energy consumption of the whole system can be reduced, and the long-term stable operation of the system is ensured.
In this embodiment, optionally, the system further includes a power supply module 502, where the power supply module 502 may specifically be a solar power supply module installed on the transmission tower, and is used for supplying power to the electronic device 401 and the communication module.
In an implementation manner of this embodiment, the temperature acquisition module 402 includes: the temperature control device comprises a first temperature acquisition module and a second temperature acquisition module. The first temperature acquisition module comprises a plurality of first temperature sensors, and the first temperature sensors are respectively arranged on different wire clamps and used for acquiring surface temperature distribution data of the power transmission conductor. The second temperature acquisition module comprises a plurality of second temperature sensors which are respectively arranged at different positions on the same section of the power transmission conductor and used for acquiring section temperature distribution data of the power transmission conductor.
In a specific embodiment, the second temperature acquisition module may include four second temperature sensors, and the four second temperature sensors may be symmetrically installed at four positions of the same section of the power transmission conductor, respectively, so as to acquire section temperature distribution data of the power transmission conductor.
In this embodiment, by deploying the stray energy collection module and the power supply module in the temperature early warning system of the power transmission conductor, the operation energy consumption of the whole system can be reduced, and the long-term stable operation of the system is ensured.
Claims (10)
1. A temperature early warning method for a power transmission conductor is characterized by comprising the following steps:
acquiring temperature distribution data and current data of a power transmission conductor, and determining an equivalent temperature corresponding to the power transmission conductor according to the temperature distribution data and the current data;
establishing a dynamic capacity-increasing model corresponding to the power transmission conductor according to equivalent temperature and current data corresponding to the power transmission conductor, and optimizing the dynamic capacity-increasing model according to multiple items of environment monitoring data corresponding to the power transmission conductor;
and determining the current-carrying capacity corresponding to the transmission conductor according to the optimized dynamic capacity-increasing model, and sending out an early warning signal corresponding to the transmission conductor according to the current-carrying capacity.
2. The method of claim 1, wherein determining the equivalent temperature for the power conductor based on the temperature distribution data and the current data comprises:
establishing a three-dimensional simulation model corresponding to the power transmission conductor, and simulating the three-dimensional simulation model by using the temperature distribution data and the current data to obtain an incidence relation between the temperature distribution data and the current data;
and determining the equivalent temperature corresponding to the power transmission conductor according to the incidence relation between the temperature distribution data and the current data.
3. The method of claim 1, wherein establishing a dynamic capacity-increase model corresponding to the power conductor based on equivalent temperature and current data corresponding to the power conductor comprises:
and acquiring a heat balance equation corresponding to the power transmission conductor, and inputting the equivalent temperature and current data into the heat balance equation to obtain a dynamic capacity-increasing model corresponding to the power transmission conductor.
4. The method according to claim 1, wherein optimizing the dynamic capacity-increase model based on a plurality of environmental monitoring data corresponding to the power transmission conductor comprises:
establishing a finite element model corresponding to the power transmission conductor, and inputting the multiple items of environment monitoring data into the finite element model to obtain an influence result of each item of environment monitoring data on temperature distribution data;
and optimizing the dynamic capacity increasing model according to the influence result of each item of environment monitoring data on the temperature distribution data.
5. The method of claim 1, wherein the temperature profile data comprises: surface temperature distribution data of the power transmission conductor, and cross-sectional temperature distribution data of the power transmission conductor;
the environmental monitoring data includes: wind speed, wind direction, ambient temperature data, ambient humidity data, expansion coefficient and solar radiation intensity corresponding to the power transmission conductors.
6. An electronic device, the electronic device comprising:
one or more processors;
storage means for storing one or more programs;
the one or more programs when executed by the one or more processors cause the one or more processors to implement the power conductor temperature alerting method of any of claims 1-5.
7. A power transmission conductor temperature early warning system, comprising the electronic device of claim 6, and further comprising:
the temperature acquisition module is used for acquiring surface temperature distribution data and section temperature distribution data of the power transmission conductor;
the current acquisition module is used for acquiring current data of the transmission conductor;
the wind speed detection module is used for detecting the wind speed and the wind direction of the environment around the power transmission conductor;
the environment temperature and humidity detection module is used for detecting environment temperature data and environment humidity data corresponding to the power transmission conductors;
the displacement detection module is used for detecting the displacement conditions of the power transmission conductors at different temperatures and calculating the expansion coefficients of the power transmission conductors according to the displacement conditions;
and the sunlight intensity detection module is used for detecting the sunlight intensity corresponding to the power transmission lead.
8. The system of claim 7, further comprising:
and the stray energy collection module is used for supplying power to the temperature collection module, the current collection module, the wind speed detection module, the environment temperature and humidity detection module, the displacement detection module and the sunlight intensity detection module.
9. The system of claim 7, wherein the temperature acquisition module comprises: the temperature acquisition device comprises a first temperature acquisition module and a second temperature acquisition module;
the first temperature acquisition module comprises a plurality of first temperature sensors which are respectively arranged on different wire clamps and used for acquiring surface temperature distribution data of the transmission conductor;
the second temperature acquisition module comprises a plurality of second temperature sensors which are respectively arranged at different positions on the same section of the power transmission conductor and used for acquiring section temperature distribution data of the power transmission conductor.
10. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, is adapted to carry out a method for temperature warning of a power conductor according to any one of claims 1-5.
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