CN114740395A - Lightning arrester fault indication system and method - Google Patents
Lightning arrester fault indication system and method Download PDFInfo
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- CN114740395A CN114740395A CN202210347576.XA CN202210347576A CN114740395A CN 114740395 A CN114740395 A CN 114740395A CN 202210347576 A CN202210347576 A CN 202210347576A CN 114740395 A CN114740395 A CN 114740395A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
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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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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Abstract
The invention discloses a lightning arrester fault indication system and a lightning arrester fault indication method. The system comprises: a sensor module, a receiver module, and a server module; the sensor module is connected with the receiver module and used for acquiring leakage data of the lightning arrester on the distribution network line to obtain a leakage current value and sending the leakage current value to the receiver module; the receiver module is connected with the server module and used for sending the received leakage current value to the server module; and the server module is used for processing the leakage current value to obtain a fault arrester number corresponding to the leakage current value. This technical scheme can monitor the running state of arrester, can early warning the degradation of arrester in advance, avoids the line fault because of the arrester damages and causes.
Description
Technical Field
The invention relates to the technical field of lightning arrester detection, in particular to a lightning arrester fault indicating system and method.
Background
The power distribution network is an important public infrastructure for national economy and social development. As an important component of the power grid, the power distribution network directly faces to users, and the performance of the power distribution network directly influences the power supply reliability and the power supply quality of the users.
The lightning protection of the distribution network is the important thing for guaranteeing the safe operation of the distribution network, and the lightning arrester of the 10kV distribution line is important equipment for the lightning protection of the distribution network.
At present, the number of the lightning arresters of the distribution network line is large, the running state of the lightning arresters cannot be monitored, and line faults caused by damage of the lightning arresters occur in a long time.
Disclosure of Invention
The invention provides a lightning arrester fault indicating system and a method, which can monitor the running state of a lightning arrester, can early warn the deterioration of the lightning arrester in advance and avoid line faults caused by damage of the lightning arrester.
According to an aspect of the present invention, there is provided an arrester failure indication system, the system comprising: a sensor module, a receiver module, and a server module;
the sensor module is connected with the receiver module and used for acquiring leakage data of the lightning arrester on the distribution network line to obtain a leakage current value and sending the leakage current value to the receiver module;
the receiver module is connected with the server module and used for sending the received leakage current value to the server module;
and the server module is used for processing the leakage current value to obtain a fault arrester number corresponding to the leakage current value.
According to another aspect of the present invention, there is provided a lightning arrester failure indication method, the method comprising:
collecting leakage data of the lightning arrester on the distribution network line to obtain a leakage current value;
and processing the leakage current value to obtain a fault arrester number corresponding to the leakage current value.
According to the technical scheme of the embodiment of the invention, the sensor module is connected with the receiver module and used for acquiring leakage data of the lightning arrester on the distribution network line to obtain a leakage current value; the receiver module is connected with the server module and used for sending the received leakage current value to the server module; and the server module is used for processing the leakage current value to obtain the fault arrester number corresponding to the leakage current value. This technical scheme can monitor the running state of arrester, can early warning the degradation of arrester in advance, avoids the line fault because of the arrester damages and causes.
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 schematic structural diagram of a lightning arrester fault indication system according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a sensor module according to an embodiment of the present disclosure;
fig. 3 is a schematic diagram of a leakage current measuring unit according to an embodiment of the present application;
FIG. 4 is an overall schematic view of a sensor module provided in an embodiment of the present application;
fig. 5 is a schematic diagram of a receiver module according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of another arrester fault indication system provided in the first embodiment of the present application;
fig. 7 is a flowchart of a lightning arrester fault indication method according to a second embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "for" and any variations thereof, are intended to cover non-exclusive inclusions, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Example one
Fig. 1 is a schematic structural diagram of a lightning arrester fault indication system according to an embodiment of the present invention, as shown in fig. 1, the system includes: a sensor module 110, a receiver module 120, and a server module 130;
the sensor module 110 is connected to the receiver module 120, and is configured to acquire leakage data of an arrester on a distribution network line, obtain a leakage current value, and send the leakage current value to the receiver module 120;
the receiver module 120 is connected to the server module 130, and configured to send the received leakage current value to the server module;
the server module 130 is configured to process the leakage current value to obtain a fault arrester number corresponding to the leakage current value.
The leakage current data may refer to three-phase leakage total current data.
In this embodiment, the number of the lightning arrester may be an identifier formed by letters, data or the like, and the numbers corresponding to different lightning arresters are different.
Wherein the receiver may be a handheld receiver.
In this scheme, sensor module 110 is fixed on the circuit pole, and the total current is revealed to the three-phase of monitoring arrester on the distribution network line, obtains revealing the current value to will reveal the current value and send, will receive reveal the current value through receiver module 120 and send server module 130, will reveal the current value by server module 130 and predetermine the threshold value and compare, if reveal the current value and exceed the restriction, confirm and reveal the corresponding trouble arrester serial number of current value to supply the fortune dimension personnel to maintain the trouble arrester.
In this embodiment, optionally, the sensor module 110 includes: a sensing unit 111, a processing unit 112, and a communication unit 113;
the sensing unit 111 is connected with the processing unit 112, and is configured to acquire leakage data of an arrester on a distribution network line, obtain a leakage voltage value, and send the leakage voltage value to the processing unit 112;
the processing unit 112 is connected to the communication unit 113, and is configured to process the leakage voltage value to obtain a leakage current value, and send the leakage current value to the communication unit 113;
the communication unit 113 is configured to send the leakage current value to the receiver module 120.
In this embodiment, the sensing unit 111 is formed by a Current Transformer (CT), the measuring range is 0.1 to 10mA, and the CT outputs a voltage signal.
The processing Unit 112 is an MCU (micro controller Unit), and the working logic is to periodically collect data of the sensing Unit 111 and convert the data into a real leakage current value under the condition that the electric quantity is sufficient, and transmit the data through the communication Unit 113. Specifically, the working interval is 20s, and at least 10 working cycles can be monitored.
Through monitoring the leakage current value of the arrester, the running state of the arrester can be monitored, the deterioration of the arrester can be early warned in advance, and the line fault caused by the damage of the arrester is avoided.
In this technical solution, optionally, the communication unit 113 is specifically configured to:
and broadcasting the leakage current value by adopting a long-distance radio communication mode so as to enable the receiver module to receive the leakage current value.
The Long Range Radio (LoRa) has the characteristics of low power consumption and Long transmission distance, and the transmission distance can reach 300m at the maximum in an open area.
In this embodiment, the communication unit 113 broadcasts the monitored leakage current value in a lan communication manner, so as to be received by the receiver module 120.
The monitoring of the running state of the lightning arrester can be realized by broadcasting the collected leakage current value.
In this technical solution, optionally, the sensor module 110 further includes: an energy supply unit 114;
the energy supply unit 114 is connected to the sensing unit 111, the processing unit 112 and the communication unit 113, and is configured to acquire voltage data and send the voltage data to the sensing unit 111, the processing unit 112 and the communication unit 113.
In the present embodiment, the energy supply unit 114 includes three parts of energy acquisition, processing and storage. A part of the acquired voltage data is transmitted to the sensing unit 111, the processing unit 112, and the communication unit 113, and the remaining part is stored by a lithium battery.
The sensing unit, the processing unit and the communication unit are powered through the power supply unit, and the leakage current value can be monitored.
In this technical solution, optionally, the energy supply unit 114 is specifically configured to:
the solar panel is used for acquiring current data, processing the current data to obtain voltage data, and sending the voltage data to the sensing unit 111, the processing unit 112 and the communication unit 113.
Wherein, the direct current of solar panel output is handled, and steady voltage output supplies power for 6V, and its unnecessary electric energy can be saved through the lithium cell. The size of the solar panel is 260mm x 170mm, the rated power is 6W, and the storage battery adopts 4200mAh, can guarantee that equipment works 48h under the no sunlight condition.
Utilize solar panel to acquire energy supply data, can improve the real-time of revealing the collection of current value.
For example, fig. 2 is a schematic structural diagram of a sensor module provided in an embodiment of the present application, and as shown in fig. 2, the sensor module 110 is structurally divided into two parts, namely, a solar panel, a power supply and a main control circuit part, and a leakage current measurement unit. The solar panel angle adjusting device is characterized in that the solar panel angle adjusting device and the solar panel are connected through a cable and fixed at the rear part of the solar panel, the three components are fixed on a tower through a hoop, and the solar panel angle adjusting device is adaptive to the field installation environment.
For example, fig. 3 is a schematic diagram of a leakage current measuring unit provided in an embodiment of the present application, and as shown in fig. 3(a), 3(b), and 3(c), the leakage current measuring unit is designed in an open-close manner. Through the stress design of buckle, the packing force when guaranteeing the buckle closure. The buckle is independent and the design of measuring structure, and through the design of buckle connection face, guarantees that buckle surface is the same with measuring unit surface diameter, guarantees that the sensor outward appearance is a whole. And in the structure, the magnetic field is gathered by the measuring magnetic ring for measurement. Through the open-close type overall design, the sensor module 110 can be clamped at the copper braid of the lightning arrester leakage current down lead, and the diameter of the sensor opening is 30 mm.
For example, fig. 4 is an overall schematic view of a sensor module provided in an embodiment of the present application, and as shown in fig. 4, the sensor module 110 is fixed to a pole tower through a hoop, and broadcasts the collected leakage current value at regular time in the presence of solar energy.
In this technical solution, optionally, the receiver module 120 is specifically configured to:
if the leakage current value is received, a data receiving prompt is performed, and the leakage current value data is sent to the server module 130.
The communication distance of the receiver module 120 is 200m-300m under the open condition, the communication distance of the shielded part is 100m, the storage battery is arranged in the receiver module, the size of the storage battery is 5000mAh, the receiver module can run for 24h when the power is full, the requirement of line patrol of operation and maintenance personnel on the day is met, and the power state indication is provided on the shell. After the leakage current value is successfully received, voice prompt is performed to receive data, and the leakage current value is sent to the server module 130.
For example, fig. 5 is a schematic diagram of a receiver module provided in an embodiment of the present application, and as shown in fig. 5, the receiver is developed based on a Linux platform, and can be extended in function, and has a size of 160 × 55 mm.
The monitored leakage current value is sent to the server module by the receiver module, and the data transmission efficiency can be improved.
In this technical solution, optionally, the server module 130 is specifically configured to:
judging whether the leakage current value is greater than or equal to a preset threshold value or not;
and if so, searching from a database to obtain the fault arrester number corresponding to the leakage current value.
Wherein, the preset threshold value can be set according to the working requirement of the lightning arrester. And if the leakage current value is greater than or equal to the preset threshold value, the leakage current value exceeds the limit, the lightning arrester is in a fault state at the moment, and the serial number of the lightning arrester with the fault is determined by searching in the database.
Through confirming the serial number of trouble arrester, can early warning the degradation of arrester in advance, avoid the circuit trouble because of the arrester damages and cause.
In this technical solution, optionally, the server module 130 is further configured to:
and if the leakage current value is smaller than a preset threshold value, carrying out normal operation prompt.
In this embodiment, if the leakage current value is smaller than the preset threshold value, the leakage current value does not exceed the limit, and at this time, the lightning arrester is in a normal working state, and the operation is normally prompted by voice.
Through handling the leakage current value, the deterioration of the lightning arrester can be early warned in advance, and the line fault caused by the damage of the lightning arrester is avoided.
For example, fig. 6 is a schematic structural diagram of another lightning arrester failure indication system provided in the first embodiment of the present application, and as shown in fig. 6, the lightning arrester failure indication system includes a sensing layer, a receiving layer, and a service application layer. The sensing layer is a sensor module 110 for monitoring leakage current of the line arrester, the sensor module is powered by solar energy, the measurement of the leakage current value is completed according to a certain collection interval, and the data is broadcasted through local area wireless communication. The receiving layer is a handheld receiver module 120 of the line maintenance personnel, and in a communication range, the receiver can receive data broadcast by the sensor module 110, respond to the received data, and transmit the data to the server module 130. The server module 130 receives and stores the leakage current value of the line arrester obtained by line patrol, performs statistical analysis on the data, gives out the number of the out-of-limit arrester group, and prompts operation and maintenance personnel to process the number.
In the scheme, the data storage adopts a micro-service framework which is constructed based on the combination of Docker, PostgressSQL and Parse and the mixture of multiple languages such as J2EEE support, C + +/Python/Golang support and the like. The microservice call stack is divided into a client side (comprising a visualization layer, an API (application programming interface) interface layer and middleware), a server side (comprising a routing and gateway layer, a containerized application and service layer and a data access layer) and a collection side (comprising a collection layer and an access layer).
A user side: the system comprises a browser, a GIS modeling, a mobile App and a system interface which are accessed through APN/VPN based on the operation of an internal network, and the browser, the mobile App, a multi-energy acquisition sensor and the system interface which are operated on the internet.
Routing and gateway layer: unified external API gateway inlets, load balancing and routing to a back-end application service are provided through Ingress, and the NGIX calls a unified authority authentication service to finish API access authentication and a log service to finish API call recording.
Containerized application and service layer: the method adopts a strategy of separating front and back ends, is divided into front-end micro application and back-end micro service, runs under Swarm unified arrangement and scheduling in a docker mode, and carries out isolation and differentiation through different naming spaces, wherein the strategy comprises basic service, business support service, multi-energy collaborative back-end service, energy operation back-end service, demand response back-end service and corresponding front-end application.
A data access layer: accessing monitoring and metering historical data based on HBase through a historical data service, accessing a monitoring real-time base based on Redis through a real-time data service, and accessing business data and spatial data in PostgreSQL through DAO.
Acquisition layer: the acquisition layer comprises a custom transmission protocol, an encryption protocol, an acquisition strategy and a low power consumption strategy.
And an access layer: the access layer realizes a communication interface between the sensor and the relay, and facilitates sensor registration, protocol verification and fault recording.
And a micro-service architecture is adopted for design and development, so that the traditional single application mode is avoided. The system is convenient for operation and maintenance personnel to inquire and count the condition of the equipment in operation, can count the data condition of the annual lightning arrester after inspection, inquire and derive an abnormal equipment list and guide a distribution network maintenance plan.
According to the technical scheme of the embodiment of the invention, the sensor module is connected with the receiver module and used for acquiring leakage data of the lightning arrester on the distribution network line to obtain a leakage current value; the receiver module is connected with the server module and used for sending the received leakage current value to the server module; and the server module is used for processing the leakage current value to obtain the fault arrester number corresponding to the leakage current value. Through carrying out this technical scheme, can monitor the running state of arrester, can early warning the degradation of arrester in advance with lower cost, avoid because of the line fault that the arrester damaged and cause.
Example two
Fig. 7 is a flowchart of a lightning arrester fault indication method according to a second embodiment of the present invention. As shown in fig. 7, the method includes:
s710, collecting leakage data of the lightning arrester on the distribution network line to obtain a leakage current value.
The leakage current data may refer to three-phase leakage total current data.
In the embodiment, the sensor module monitors the three-phase leakage total current of the lightning arrester on the distribution network line to obtain the leakage current value.
In this technical scheme, optionally, gather the data of revealing of joining in marriage the arrester on the net twine way, obtain the current value of revealing, include:
collecting leakage data of the lightning arrester on the distribution network line to obtain a leakage voltage value;
and processing the leakage voltage value to obtain a leakage current value.
In the scheme, the leakage data of the lightning arrester on the distribution network line is collected by the sensing unit to obtain a leakage voltage value, and the data of the sensing unit is collected by the processing unit at regular time and is converted into a real leakage current value.
Through monitoring the leakage current value of the arrester, the running state of the arrester can be monitored, the deterioration of the arrester can be early warned, and the line fault caused by the damage of the arrester is avoided.
S720, processing the leakage current value to obtain a fault arrester number corresponding to the leakage current value.
In this embodiment, the arrester number may be an identifier formed by letters or data, and the numbers corresponding to different arresters are different
In the scheme, the leakage current value can be compared with a preset threshold value, if the leakage current value is larger than or equal to the preset threshold value, the leakage current value exceeds the limit, the lightning arrester is in a fault state at the moment, and the serial number of the specific lightning arrester with the fault is determined by searching in the database. If the leakage current value is smaller than the preset threshold value, the leakage current value does not exceed the limit, and at the moment, the lightning arrester is in a normal working state, and the voice prompt is carried out to ensure that the operation is normal.
According to the technical scheme of the embodiment of the invention, the leakage current value is obtained by acquiring the leakage data of the lightning arresters on the distribution network line, and the leakage current value is processed to obtain the fault lightning arrester number corresponding to the leakage current value. Through carrying out this technical scheme, can monitor the running state of arrester, can early warning the degradation of arrester in advance with lower cost, avoid because of the line fault that the arrester damaged and cause.
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.
Claims (10)
1. An arrester fault indication system, comprising: a sensor module, a receiver module, and a server module;
the sensor module is connected with the receiver module and used for acquiring leakage data of the lightning arrester on the distribution network line to obtain a leakage current value and sending the leakage current value to the receiver module;
the receiver module is connected with the server module and used for sending the received leakage current value to the server module;
and the server module is used for processing the leakage current value to obtain a fault arrester number corresponding to the leakage current value.
2. The system of claim 1, wherein the sensor module comprises: the device comprises a sensing unit, a processing unit and a communication unit;
the sensing unit is connected with the processing unit and used for acquiring leakage data of the lightning arrester on the distribution network line to obtain a leakage voltage value and sending the leakage voltage value to the processing unit;
the processing unit is connected with the communication unit and used for processing the leakage voltage value to obtain a leakage current value and sending the leakage current value to the communication unit;
the communication unit is used for sending the leakage current value to the receiver module.
3. The system according to claim 2, wherein the communication unit is specifically configured to:
and broadcasting the leakage current value by adopting a long-distance radio communication mode so as to enable the receiver module to receive the leakage current value.
4. The system of claim 1, wherein the sensor module further comprises: an energy supply unit;
the energy supply unit is connected with the sensing unit, the processing unit and the communication unit and used for acquiring voltage data and sending the voltage data to the sensing unit, the processing unit and the communication unit.
5. System according to claim 4, characterized in that said energizing unit is particularly adapted to:
the solar panel is used for acquiring current data, processing the current data to obtain voltage data, and sending the voltage data to the sensing unit, the processing unit and the communication unit.
6. The system of claim 1, wherein the receiver module is specifically configured to:
and if the leakage current value is received, prompting the reception of data, and sending the leakage current value data to the server module.
7. The system of claim 1, wherein the server module is specifically configured to:
judging whether the leakage current value is greater than or equal to a preset threshold value or not;
if yes, searching is carried out from a database, and the number of the fault lightning arrester corresponding to the leakage current value is obtained.
8. The system of claim 1, wherein the server module is further configured to:
and if the leakage current value is smaller than a preset threshold value, performing normal operation prompt.
9. A method of indicating a fault in an arrester, comprising:
collecting leakage data of the lightning arrester on the distribution network line to obtain a leakage current value;
and processing the leakage current value to obtain a fault arrester number corresponding to the leakage current value.
10. The method of claim 9, wherein collecting leakage data of the lightning arrester on the distribution network line to obtain a leakage current value comprises:
collecting leakage data of the lightning arrester on the distribution network line to obtain a leakage voltage value;
and processing the leakage voltage value to obtain a leakage current value.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117559375A (en) * | 2024-01-12 | 2024-02-13 | 国网浙江省电力有限公司宁波供电公司 | Control method and device of lightning arrester system and lightning arrester system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117559375A (en) * | 2024-01-12 | 2024-02-13 | 国网浙江省电力有限公司宁波供电公司 | Control method and device of lightning arrester system and lightning arrester system |
| CN117559375B (en) * | 2024-01-12 | 2024-05-17 | 国网浙江省电力有限公司宁波供电公司 | Control method and device of lightning arrester system and lightning arrester system |
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