CN113156245A - Lightning arrester state monitoring device and control method - Google Patents
Lightning arrester state monitoring device and control method Download PDFInfo
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- CN113156245A CN113156245A CN202110415542.5A CN202110415542A CN113156245A CN 113156245 A CN113156245 A CN 113156245A CN 202110415542 A CN202110415542 A CN 202110415542A CN 113156245 A CN113156245 A CN 113156245A
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention provides a lightning arrester state monitoring device and a control method, which can sense leakage current and lightning current signals of a lightning arrester under operating voltage in real time, discover the aging and wetting states of the lightning arrester in time, reduce the occurrence of explosion accidents, improve the operating risk assessment and troubleshooting efficiency of the lightning arrester, and provide information support for the intelligentization and the datamation of the operation of a power transmission and distribution line.
Description
Technical Field
The invention belongs to the technical field of state monitoring of power transmission and transformation lightning protection equipment, and particularly relates to a lightning arrester state monitoring device and a control method.
Background
Along with the development of power grid construction and the objective requirement for reducing the lightning trip-out rate, the zinc oxide lightning arrester is widely applied to power transmission and distribution lines in regions due to excellent mechanical property, electrical property, heat-resisting property and the like, along with the continuous increase of the operation age, and the influence of severe operation environments such as high-temperature drying, frequent lightning activities and the like, the problems of poor product quality, construction and installation defects and the like accelerate the aging and the damping of the lightning arrester, the annual fault frequency and the average fault rate are both in an upgrade state, and particularly, the number of explosion accidents is greatly increased when the design life is not reached. On the other hand, along with the increase of the operating life of the arrester, the uncertainty of the residual life of the arrester is more prominent, blind overhaul or due replacement brings unnecessary resource waste, and the old arrester is 'repair is' a replacement and needs a decision basis urgently.
At present, each operation and maintenance unit is mostly limited to finding the arrester operation hidden danger or carrying out the routine maintenance of having a power failure from the outward appearance angle of patrolling to the operation and maintenance of line arrester, the routine maintenance of having a power failure is overhauld and is maintained the arrester with the time as the node, the defect and the hidden danger of arrester can be found to this kind of method really, nevertheless consuming time and wasting power, can cause some arresters that the operating condition is good to have a power failure repeatedly and overhaul, some arresters that the operating condition is not so good can not have a power failure because user or company require to maintain, so just cause the waste of maintenance cost and the decline of equipment operation reliability.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a lightning arrester state monitoring device and a lightning arrester state monitoring control method, and aims to collect leakage current signals and lightning current signals by adopting a detection device, and build a hardware circuit to upload processed data information of the leakage current, the lightning current and the lightning frequency of the lightning arrester to a remote monitoring platform through wireless communication.
In order to achieve the above object, the present invention provides a lightning arrester state monitoring device and a control method, wherein each component comprises: the system comprises a lightning arrester state monitoring terminal, a relay gateway, a background data center and a remote monitoring platform; the lightning arrester state monitoring terminal mainly collects and processes lightning current, leakage current, lightning stroke frequency and other original signals of the lightning arrester, and sends the processed data to the relay gateway through LoRa wireless communication; the relay gateway mainly receives and processes the lightning arrester operation state data transmitted by the lightning arrester monitoring terminal, and transmits the processed terminal data to the background data center through 4G according to a standard communication protocol; the background data center mainly receives the effective data sent by the relay gateway and stores the effective data according to the relevant standard requirements for the remote monitoring platform to read; the remote monitoring platform mainly completes real-time display and query of the lightning arrester operation state data, and when the data are at the early warning critical value, alarm information is sent out in the modes of short messages, mails, interface pop windows and the like, so that accidents are prevented.
Furthermore, the arrester state monitoring terminal comprises power supply module, signal acquisition and conditioning module, AD conversion module, mains voltage acquisition module, real-time clock module, Lora communication module, serial ports communication interface module and MCU control module, thunderbolt current sampling circuit, leakage current sampling circuit.
Furthermore, the relay gateway is composed of a solar energy and storage battery power supply module, a Lora communication module, a 4G communication module, a real-time clock module and an MCU control module.
Further, the lightning arrester state monitoring device and the control method thereof have the following characteristic steps:
s1: starting a controller of the lightning arrester state monitoring device, detecting the running state of the lightning arrester state monitoring device, and judging whether the lightning arrester state monitoring device needs to be triggered and interrupted;
s2: if the arrester state monitoring device does not need to be triggered to be interrupted, repeating the step S1 to detect the running state of the arrester state monitoring device;
s3: and if the lightning arrester state monitoring device needs triggering interruption, the device controller acquires the leakage current value, the lightning current value and the power supply voltage value of the lightning arrester, counts the leakage current value, the lightning current value and the power supply voltage value in an accumulated mode, uploads the data to the relay gateway, and the control flow is finished.
The lightning arrester state monitoring device and the control method provided by the invention have the advantages that:
the lightning arrester lightning stroke current, lightning stroke time, lightning stroke frequency and leakage current data real-time monitoring can be realized, the waveform data are counted and analyzed, technical basis is provided for line lightning protection comprehensive analysis and lower-stage lightning protection improvement measures, the electrical insulation judgment precision of line lightning protection equipment is improved, and lightning protection effect assessment of a power distribution overhead line is realized.
Drawings
Fig. 1 is a block diagram of a lightning arrester state monitoring device system.
Fig. 2 is a control flow chart of an arrester condition monitoring apparatus.
Detailed Description
The lightning arrester state monitoring device and the control method provided by the invention are further described below with reference to the accompanying drawings.
As shown in fig. 1, a lightning arrester state monitoring device and a control method thereof are technically characterized in that each component comprises: the system comprises a lightning arrester state monitoring terminal, a relay gateway, a background data center and a remote monitoring platform; the lightning arrester state monitoring terminal mainly collects and processes lightning current, leakage current, lightning stroke frequency and other original signals of the lightning arrester, and sends the processed data to the relay gateway through LoRa wireless communication; the relay gateway mainly receives and processes the lightning arrester operation state data transmitted by the lightning arrester monitoring terminal, and transmits the processed terminal data to the background data center through 4G according to a standard communication protocol; the background data center mainly receives the effective data sent by the relay gateway and stores the effective data according to the relevant standard requirements for the remote monitoring platform to read; the remote monitoring platform mainly completes real-time display and query of the lightning arrester operation state data, and when the data are at the early warning critical value, alarm information is sent out in the modes of short messages, mails, interface pop windows and the like, so that accidents are prevented.
Furthermore, the arrester state monitoring terminal comprises power supply module, signal acquisition and conditioning module, AD conversion module, mains voltage acquisition module, real-time clock module, Lora communication module, serial ports communication interface module and MCU control module, thunderbolt current sampling circuit, leakage current sampling circuit.
Furthermore, the relay gateway is composed of a solar energy and storage battery power supply module, a Lora communication module, a 4G communication module, a real-time clock module and an MCU control module.
As shown in fig. 2, a lightning arrester state monitoring device and a control method thereof are characterized by comprising the following steps:
s1: starting a controller of the lightning arrester state monitoring device, detecting the running state of the lightning arrester state monitoring device, and judging whether the lightning arrester state monitoring device needs to be triggered and interrupted;
s2: if the arrester state monitoring device does not need to be triggered to be interrupted, repeating the step S1 to detect the running state of the arrester state monitoring device;
s2: and if the lightning arrester state monitoring device needs triggering interruption, the device controller acquires the leakage current value, the lightning current value and the power supply voltage value of the lightning arrester, counts the leakage current value, the lightning current value and the power supply voltage value in an accumulated mode, uploads the data to the relay gateway, and the control flow is finished.
The above embodiments are not intended to be exhaustive or to limit the present invention, and those skilled in the art can implement the present invention in combination with other embodiments without departing from the scope of the present invention.
Claims (4)
1. A lightning arrester state monitoring device and a control method are technically characterized in that each part comprises: the system comprises a lightning arrester state monitoring terminal, a relay gateway, a background data center and a remote monitoring platform; the lightning arrester state monitoring terminal mainly collects and processes lightning current, leakage current, lightning stroke frequency and other original signals of the lightning arrester, and sends the processed data to the relay gateway through LoRa wireless communication; the relay gateway mainly receives and processes the lightning arrester operation state data transmitted by the lightning arrester monitoring terminal, and transmits the processed terminal data to the background data center through 4G according to a standard communication protocol; the background data center mainly receives the effective data sent by the relay gateway and stores the effective data according to the relevant standard requirements for the remote monitoring platform to read; the remote monitoring platform mainly completes real-time display and query of the lightning arrester operation state data, and when the data are at the early warning critical value, alarm information is sent out in the modes of short messages, mails, interface pop windows and the like, so that accidents are prevented.
2. The lightning arrester state monitoring terminal according to claim 1, which comprises a power supply module, a signal acquisition and conditioning module, an AD conversion module, a power supply voltage acquisition module, a real-time clock module, a Lora communication module, a serial communication interface module, an MCU control module, a lightning current sampling circuit and a leakage current sampling circuit.
3. The trunking gateway of claim 1 is comprised of a solar + battery power module, a Lora communication module, a 4G communication module, a real-time clock module, and an MCU control module.
4. The lightning arrester state monitoring device and the control method according to claim 1, wherein the control method comprises the following characteristic steps:
s1: starting a controller of the lightning arrester state monitoring device, detecting the running state of the lightning arrester state monitoring device, and judging whether the lightning arrester state monitoring device needs to be triggered and interrupted;
s2: if the arrester state monitoring device does not need to be triggered to be interrupted, repeating the step S1 to detect the running state of the arrester state monitoring device;
s3: and if the lightning arrester state monitoring device needs triggering interruption, the device controller acquires the leakage current value, the lightning current value and the power supply voltage value of the lightning arrester, counts the leakage current value, the lightning current value and the power supply voltage value in an accumulated mode, uploads the data to the relay gateway, and the control flow is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110415542.5A CN113156245A (en) | 2021-04-19 | 2021-04-19 | Lightning arrester state monitoring device and control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110415542.5A CN113156245A (en) | 2021-04-19 | 2021-04-19 | Lightning arrester state monitoring device and control method |
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| CN113156245A true CN113156245A (en) | 2021-07-23 |
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| CN202110415542.5A Pending CN113156245A (en) | 2021-04-19 | 2021-04-19 | Lightning arrester state monitoring device and control method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113740646A (en) * | 2021-08-30 | 2021-12-03 | 国网西藏电力有限公司检修公司 | State evaluation method for power transmission and distribution line lightning arresters |
| CN115754445A (en) * | 2022-11-23 | 2023-03-07 | 国家电网有限公司 | Intelligent remote monitoring system for passive lightning arrester of power transmission line |
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2021
- 2021-04-19 CN CN202110415542.5A patent/CN113156245A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113740646A (en) * | 2021-08-30 | 2021-12-03 | 国网西藏电力有限公司检修公司 | State evaluation method for power transmission and distribution line lightning arresters |
| CN115754445A (en) * | 2022-11-23 | 2023-03-07 | 国家电网有限公司 | Intelligent remote monitoring system for passive lightning arrester of power transmission line |
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