CN111077400A - 10KV zinc oxide arrester fault monitoring device and control method thereof - Google Patents
10KV zinc oxide arrester fault monitoring device and control method thereof Download PDFInfo
- Publication number
- CN111077400A CN111077400A CN202010016175.7A CN202010016175A CN111077400A CN 111077400 A CN111077400 A CN 111077400A CN 202010016175 A CN202010016175 A CN 202010016175A CN 111077400 A CN111077400 A CN 111077400A
- Authority
- CN
- China
- Prior art keywords
- monitoring device
- module
- arrester
- zinc oxide
- fault
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/003—Measuring mean values of current or voltage during a given time interval
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/17—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values giving an indication of the number of times this occurs, i.e. multi-channel analysers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/14—Receivers specially adapted for specific applications
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
Abstract
The invention relates to a 10KV zinc oxide arrester fault monitoring device and a control method thereof, wherein the device comprises: the monitoring device comprises a monitoring device internal valve plate, a protection circuit, a sampling circuit, a monitoring device solar panel, a charging and discharging management module, an MCU (microprogrammed control unit), a radio frequency maintenance module, a GPS (global positioning system) positioning module and an NB-IoT (NB-IoT) module; the internal valve plate of the monitoring device is connected with an MOA arranged on a 10KV line; the protection circuit is connected to two sides of an internal valve plate of the monitoring device; the sampling circuit is connected with the protection circuit; the solar panel of the monitoring device is connected with the charging and discharging management module; the MCU is respectively connected with the sampling circuit, the charging and discharging management module, the radio frequency maintenance module, the GPS positioning module and the NB-IoT module. The invention realizes real-time monitoring of various parameters of the zinc oxide arrester and ensures real-time and accurate rush repair when a line fails.
Description
Technical Field
The invention relates to the field of lightning arrester monitoring, in particular to a 10KV zinc oxide lightning arrester fault monitoring device and a control method thereof.
Background
In order to accelerate the fault location and fault maintenance time, help operation and maintenance personnel to quickly find out fault points and accelerate the construction of a 10KV intelligent power distribution network, a 10KV lightning arrester online monitoring device is applied to a 10KV power distribution line.
Until now, the research time for online monitoring of the zinc oxide arrester is long, and various detection methods are available, which are based on measuring leakage current. According to the current research at home and abroad, the general test methods can be divided into several types: (1) the total leakage current method; (2) resistive current third harmonic method; (3) measuring resistive current by a compensation method; (4) calculating higher harmonics; (5) monitoring a resistive current fundamental wave value by a harmonic analysis method; (6) and testing the MOA leakage current by adopting a wave point method.
A plurality of problems are also met in the online monitoring device for researching the zinc oxide arrester for a long time, so that the accuracy of online monitoring is influenced, and the main influence factors are as follows: (1) influence of power grid harmonic waves on MOA on-line monitoring; (2) influence of interphase interference on MOA online monitoring; (3) the influence of the excrement leakage current on the MOA on-line monitoring; (4) influence of voltage fluctuation on MOA online monitoring; (5) influence of ambient temperature on MOA on-line monitoring; (6) dependence on the effect of MOA on-line monitoring.
Therefore, how to develop an online monitoring device for a 10KV zinc oxide arrester, which makes the overall design compatible considering the volume, endurance, monitoring accuracy and having remote monitoring capability, etc., and has a simple structure and is portable, is a problem that the technical personnel in the field need to solve urgently.
Disclosure of Invention
In view of this, the invention aims to provide a 10KV zinc oxide arrester fault monitoring device and a control method thereof, which can monitor various parameters of the zinc oxide arrester in real time and ensure real-time and accurate emergency repair when a line fault occurs.
In order to achieve the purpose, the invention adopts the following technical scheme:
a 10KV zinc oxide arrester fault monitoring device, the device comprising: the monitoring device comprises a monitoring device internal valve plate, a protection circuit, a sampling circuit, a monitoring device solar panel, a charging and discharging management module, an MCU (microprogrammed control unit), a radio frequency maintenance module, a GPS (global positioning system) positioning module and an NB-IoT (NB-IoT) module;
the internal valve plate of the monitoring device is connected with an MOA arranged on a 10KV line;
the protection circuit is connected to two sides of an internal valve plate of the monitoring device;
the sampling circuit is connected with the protection circuit;
the solar panel of the monitoring device is connected with the charging and discharging management module;
the MCU is respectively connected with the sampling circuit, the charging and discharging management module, the radio frequency maintenance module, the GPS positioning module and the NB-IoT module.
Further, the MCU adopts MSP430FR 5994.
The solar panel of the monitoring device is converted into electric energy through the photoelectric conversion circuit, and then the electric energy is supplied to a power supply of the device through the charge and discharge management module.
A control method of a 10KV zinc oxide arrester fault monitoring device comprises the following steps:
step S1: the system architecture lightning arrester fault monitoring device monitors the health state of the lightning arrester in real time, and when the lightning arrester is not in fault, the MCU transmits the data of the full current and the lightning stroke frequency of the lightning arrester to the cloud platform through the NB-IOT every 24 hours;
and step S2, when the deterioration of the arrester is accelerated, the data transmission period is reduced, whether to give an early warning is judged according to a preset threshold value, when the arrester is damaged, the fault information of the arrester is immediately sent to a mobile terminal of an operation and maintenance person, and the specific position of the arrester is positioned according to the GPS positioning module.
Further, the MCU comprises a bottom layer module and an upper layer task module.
Further, the bottom layer module comprises a 1.25mS timer, GPRS serial port communication, radio frequency interruption and a main cycle.
Further, the upper layer task module includes seven main tasks, specifically:
(1) BootLoader: adopting bootloader of AT-C101H for upgrading program;
(2) and (3) interrupting the counting task: starting counting interruption after detecting lightning stroke or operation overvoltage action;
(3) acquiring power frequency follow current: starting to collect power frequency current in a period after the lightning arrester acts, continuously collecting 5 cycles, and calculating and averaging the power frequency current by adopting DFT (discrete Fourier transform);
(4) low power consumption switching: when a fault occurs, radio frequency data or set low power consumption time is exhausted, switching back to full speed;
(5) and (3) radio frequency maintenance task: processing radio frequency communications, mainly for configuring and debugging devices during production and installation;
(6) GPRS specification task: the local current data and the fault data are arranged into messages, and the messages are sent and receive a time setting instruction through GPRS;
(7) and displaying the task: when the lightning arrester acts, the red light flickers; and flashing red light when the lightning arrester fails.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, through the cooperation of hardware and software of the monitoring device, when the zinc oxide arrester fails, the monitoring device is protected from damage through the protection circuit, the sampling circuit collects data, the GPS positioning module determines the failure range, and finally the function of remote monitoring is carried out through the cooperation of the NB-IoT module and the cloud platform.
Drawings
FIG. 1 is a schematic block diagram of the apparatus of the present invention;
fig. 2 is a system structure diagram of a fault monitoring device based on a 10KV zinc oxide arrester in an embodiment of the invention.
Detailed Description
The invention is further explained below with reference to the drawings and the embodiments.
Referring to fig. 1, the present invention provides a 10KV zinc oxide arrester fault monitoring device, which comprises: the monitoring device comprises a monitoring device internal valve plate, a protection circuit, a sampling circuit, a monitoring device solar panel, a charging and discharging management module, an MCU (microprogrammed control unit), a radio frequency maintenance module, a GPS (global positioning system) positioning module and an NB-IoT (NB-IoT) module; the internal valve plate of the monitoring device is connected with an MOA arranged on a 10KV line; the protection circuit is connected to two sides of an internal valve plate of the monitoring device; the sampling circuit is connected with the protection circuit; the solar panel of the monitoring device is connected with the charging and discharging management module; the MCU is respectively connected with the sampling circuit, the charging and discharging management module, the radio frequency maintenance module, the GPS positioning module and the NB-IoT module.
In this embodiment, the MCU employs MSP430FR 5994.
In the present embodiment, the GPS positioning module adopts a small, high-performance, high-reliability auxiliary GPS module SIM28M proposed by SIMCOM.
In the embodiment, the NB-IoT module is selected from BC26, and the NB-IoT wireless communication module with high performance, low power consumption and multiple frequency bands is adopted.
In this embodiment, the monitoring device further includes a photoelectric conversion circuit, and the solar panel of the monitoring device is converted into electric energy through the photoelectric conversion circuit, and then supplies power to the power supply of the monitoring device through the charge and discharge management module.
A control method of a 10KV zinc oxide arrester fault monitoring device comprises the following steps:
step S1: the system architecture lightning arrester fault monitoring device monitors the health state of the lightning arrester in real time, and when the lightning arrester is not in fault, the MCU transmits the data of the full current and the lightning stroke frequency of the lightning arrester to the cloud platform through the NB-IOT every 24 hours;
and step S2, when the deterioration of the arrester is accelerated, the data transmission period is reduced, whether to give an early warning is judged according to a preset threshold value, when the arrester is damaged, the fault information of the arrester is immediately sent to a mobile terminal of an operation and maintenance person, and the specific position of the arrester is positioned according to the GPS positioning module.
In the embodiment, the monitoring device comprises a bottom layer module and an upper layer task module on the whole software architecture.
The bottom layer module comprises a 1.25mS timer, GPRS serial port communication, radio frequency interruption and a main cycle.
The upper layer task module comprises seven main tasks, specifically:
(1) BootLoader: adopting bootloader of AT-C101H for upgrading program;
(2) and (3) interrupting the counting task: starting counting interruption after detecting lightning stroke or operation overvoltage action;
(3) acquiring power frequency follow current: starting to collect power frequency current in a period after the lightning arrester acts, continuously collecting 5 cycles, and calculating and averaging the power frequency current by adopting DFT (discrete Fourier transform);
(4) low power consumption switching: when a fault occurs, radio frequency data or set low power consumption time is exhausted, switching back to full speed;
(5) and (3) radio frequency maintenance task: processing radio frequency communications, mainly for configuring and debugging devices during production and installation;
(6) GPRS specification task: the local current data and the fault data are arranged into messages, and the messages are sent and receive a time setting instruction through GPRS;
(7) and displaying the task: when the lightning arrester acts, the red light flickers; and flashing red light when the lightning arrester fails.
The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the present invention.
Claims (7)
1. A10 KV zinc oxide arrester fault monitoring device, characterized in that the device comprises: the monitoring device comprises a monitoring device internal valve plate, a protection circuit, a sampling circuit, a monitoring device solar panel, a charging and discharging management module, an MCU (microprogrammed control unit), a radio frequency maintenance module, a GPS (global positioning system) positioning module and an NB-IoT (NB-IoT) module;
the internal valve plate of the monitoring device is connected with an MOA arranged on a 10KV line;
the protection circuit is connected to two sides of an internal valve plate of the monitoring device;
the sampling circuit is connected with the protection circuit;
the solar panel of the monitoring device is connected with the charging and discharging management module;
the MCU is respectively connected with the sampling circuit, the charging and discharging management module, the radio frequency maintenance module, the GPS positioning module and the NB-IoT module.
2. The device of claim 1, wherein the MCU is MSP430FR 5994.
3. The 10KV zinc oxide arrester fault monitoring device according to claim 1, further comprising a photoelectric conversion circuit, wherein a solar panel of the monitoring device is converted into electric energy through the photoelectric conversion circuit, and then the electric energy is supplied to a power supply of the device through the charge and discharge management module.
4. The control method of the 10KV zinc oxide arrester fault monitoring device according to claim 1, characterized by comprising the following steps:
step S1: the system architecture lightning arrester fault monitoring device monitors the health state of the lightning arrester in real time, and when the lightning arrester is not in fault, the MCU transmits the data of the full current and the lightning stroke frequency of the lightning arrester to the cloud platform through the NB-IOT every 24 hours;
and step S2, when the deterioration of the arrester is accelerated, the data transmission period is reduced, whether to give an early warning is judged according to a preset threshold value, when the arrester is damaged, the fault information of the arrester is immediately sent to a mobile terminal of an operation and maintenance person, and the specific position of the arrester is positioned according to the GPS positioning module.
5. The control method of the 10KV zinc oxide arrester fault monitoring device according to claim 4, characterized in that: the MCU comprises a bottom layer module and an upper layer task module.
6. The control method of the 10KV zinc oxide arrester fault monitoring device according to claim 5, characterized in that: the bottom layer module comprises a 1.25mS timer, GPRS serial port communication, radio frequency interruption and a main cycle.
7. The control method of the 10KV zinc oxide arrester fault monitoring device according to claim 5, characterized in that the upper layer task module comprises seven main tasks, specifically:
(1) BootLoader: adopting bootloader of AT-C101H for upgrading program;
(2) and (3) interrupting the counting task: starting counting interruption after detecting lightning stroke or operation overvoltage action;
(3) acquiring power frequency follow current: starting to collect power frequency current in a period after the lightning arrester acts, continuously collecting 5 cycles, and calculating and averaging the power frequency current by adopting DFT (discrete Fourier transform);
(4) low power consumption switching: when a fault occurs, radio frequency data or set low power consumption time is exhausted, switching back to full speed;
(5) and (3) radio frequency maintenance task: processing radio frequency communications, mainly for configuring and debugging devices during production and installation;
(6) GPRS specification task: the local current data and the fault data are arranged into messages, and the messages are sent and receive a time setting instruction through GPRS;
(7) and displaying the task: when the lightning arrester acts, the red light flickers; and flashing red light when the lightning arrester fails.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010016175.7A CN111077400A (en) | 2020-01-08 | 2020-01-08 | 10KV zinc oxide arrester fault monitoring device and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010016175.7A CN111077400A (en) | 2020-01-08 | 2020-01-08 | 10KV zinc oxide arrester fault monitoring device and control method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111077400A true CN111077400A (en) | 2020-04-28 |
Family
ID=70322739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010016175.7A Pending CN111077400A (en) | 2020-01-08 | 2020-01-08 | 10KV zinc oxide arrester fault monitoring device and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111077400A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112630554A (en) * | 2020-10-26 | 2021-04-09 | 国网电力科学研究院武汉南瑞有限责任公司 | Online monitoring device and method for line arrester with series gap |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102156241A (en) * | 2011-05-31 | 2011-08-17 | 江苏省电力公司连云港供电公司 | On-line monitoring unit for leakage current of zinc oxide arrester |
| CN103901302A (en) * | 2014-03-25 | 2014-07-02 | 国网吉林省电力有限公司电力科学研究院 | Method and device for online detection of state of leakage conductor with series gap |
| CN104655969A (en) * | 2015-03-19 | 2015-05-27 | 国网上海市电力公司 | Zinc oxide arrester online monitoring system |
| CN105445583A (en) * | 2015-11-27 | 2016-03-30 | 国家电网公司 | Transformer station lightning arrester test method |
| CN109638966A (en) * | 2018-12-28 | 2019-04-16 | 广州中光电气科技有限公司 | A kind of monitoring of arrester intelligent online, data remote visualization cloud platform system |
| CN209471187U (en) * | 2018-11-23 | 2019-10-08 | 国网河南省电力公司桐柏县供电公司 | Metal oxide arrester intelligent wireless monitors system in a kind of station |
| CN110361616A (en) * | 2019-07-24 | 2019-10-22 | 陕西世翔电子科技有限公司 | Arrester based on Internet of Things monitors platform on-line |
-
2020
- 2020-01-08 CN CN202010016175.7A patent/CN111077400A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102156241A (en) * | 2011-05-31 | 2011-08-17 | 江苏省电力公司连云港供电公司 | On-line monitoring unit for leakage current of zinc oxide arrester |
| CN103901302A (en) * | 2014-03-25 | 2014-07-02 | 国网吉林省电力有限公司电力科学研究院 | Method and device for online detection of state of leakage conductor with series gap |
| CN104655969A (en) * | 2015-03-19 | 2015-05-27 | 国网上海市电力公司 | Zinc oxide arrester online monitoring system |
| CN105445583A (en) * | 2015-11-27 | 2016-03-30 | 国家电网公司 | Transformer station lightning arrester test method |
| CN209471187U (en) * | 2018-11-23 | 2019-10-08 | 国网河南省电力公司桐柏县供电公司 | Metal oxide arrester intelligent wireless monitors system in a kind of station |
| CN109638966A (en) * | 2018-12-28 | 2019-04-16 | 广州中光电气科技有限公司 | A kind of monitoring of arrester intelligent online, data remote visualization cloud platform system |
| CN110361616A (en) * | 2019-07-24 | 2019-10-22 | 陕西世翔电子科技有限公司 | Arrester based on Internet of Things monitors platform on-line |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112630554A (en) * | 2020-10-26 | 2021-04-09 | 国网电力科学研究院武汉南瑞有限责任公司 | Online monitoring device and method for line arrester with series gap |
| CN112630554B (en) * | 2020-10-26 | 2022-05-03 | 国网电力科学研究院武汉南瑞有限责任公司 | Online monitoring device and method for line arrester with series gap |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109638966B (en) | Visual cloud platform system for intelligent online monitoring and data remote transmission of lightning arrester | |
| CN114819415B (en) | Power equipment fault prediction system based on data analysis | |
| CN103728511B (en) | D.C. high voltage transmission grounded screen state on-line monitoring system and monitoring method | |
| CN105510779A (en) | Arrester on-line monitoring system and application method thereof | |
| CN110441655B (en) | Lightning grounding fault monitoring system for wind power plant current collecting line | |
| CN102169135A (en) | Resistive current remote online monitoring system for power transmission line arrester | |
| CN105807158A (en) | Electric power parameter online monitoring system and monitoring control method for power grid connection points and switches | |
| CN103592580A (en) | Insulator haze and pollution flashover online monitoring system and method | |
| CN201945871U (en) | Online monitoring device for resistive current of long-distance power transmission line arrester | |
| CN107561341A (en) | Arrester resistance current on-line monitoring method based on wireless synchronization Sampling techniques | |
| CN114167291A (en) | Safe operation and maintenance management system for storage battery of power internet of things of communication station | |
| CN104332669A (en) | Online intelligent substation storage battery monitoring and maintenance method and system | |
| CN202676855U (en) | Long-distance positioning device for lightning stroke fault point of power transmission line | |
| CN111077400A (en) | 10KV zinc oxide arrester fault monitoring device and control method thereof | |
| CN114448348A (en) | Distributed photovoltaic operation data acquisition system and data processing method | |
| CN103810077A (en) | Integrated intelligent monitoring system for leads | |
| CN203444465U (en) | Integrated intelligent monitoring system of wire | |
| CN104237744A (en) | Current calculating method for low power consumption of fault indicator | |
| CN202353313U (en) | Monitoring system of power supply equipment for power | |
| CN115792437B (en) | Digital monitoring method and system for lightning arrester | |
| CN208766264U (en) | A kind of system of the power distribution network main equipment live detection based on electric power wireless communication | |
| CN105487014A (en) | Method and device for predicting lithium battery capacity | |
| CN202111527U (en) | Pole top switch controller with harmonic wave monitoring function and overhead line harmonic wave monitoring system | |
| CN205103382U (en) | Lithium battery capacity testing arrangement | |
| CN112104082B (en) | Power distribution network line live state monitoring system and method based on Internet of things technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200428 |
|
| RJ01 | Rejection of invention patent application after publication |