CN202275124U - Lightning arrester on-line monitoring system based on wireless sensor network - Google Patents

Lightning arrester on-line monitoring system based on wireless sensor network Download PDF

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Publication number
CN202275124U
CN202275124U CN2011203927868U CN201120392786U CN202275124U CN 202275124 U CN202275124 U CN 202275124U CN 2011203927868 U CN2011203927868 U CN 2011203927868U CN 201120392786 U CN201120392786 U CN 201120392786U CN 202275124 U CN202275124 U CN 202275124U
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CN
China
Prior art keywords
wireless
sensor network
wireless sensor
arrester
monitoring
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Expired - Lifetime
Application number
CN2011203927868U
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Chinese (zh)
Inventor
张卓云
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SHANGHAI XINYING POWERTECH CO., LTD.
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SHANGHAI XINYING POWER TECHNOLOGY CO LTD
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Priority to CN2011203927868U priority Critical patent/CN202275124U/en
Application granted granted Critical
Publication of CN202275124U publication Critical patent/CN202275124U/en
Anticipated expiration legal-status Critical
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Abstract

The utility model relates to a lightning arrester on-line monitoring system based on a wireless sensor network, comprising a data collection module, a data processing module, a server and a monitoring terminal, wherein the data processing module, the server and the monitoring terminal are orderly connected through a data bus, the monitoring system also comprises a wireless sensor network, and the data collection module is connected with the data processing module through the wireless sensor network. Compared with the prior art, the lightning arrester on-line monitoring system based on a wireless sensor network has the advantages of being high in reliability, excellent in safety and high in monitoring efficiency, etc.

Description

A kind of arrester on-line monitoring system based on wireless sensor network
Technical field
The utility model relates to a kind of lightning arrester monitoring system, especially relates to a kind of arrester on-line monitoring system based on wireless sensor network.
Background technology
The experimental product of leakage current of an arrester on-line monitoring was arranged in the past, mainly adopt RS-485, CAN forms monitor network.Its safety assurance mainly is that photoelectricity is isolated, yet the security of this type leakage current of an arrester on-line monitoring scheme is doubt.Because lightning arrester will bear huge thunderbolt energy when action; The leakage current of an arrester monitor equally also will bear this energy; If adopt this type in-service monitoring technology inevitably to need to lay power supply and communication cable, power lead can only adopt copper cable, and this can bring great risk; The energy that will be struck by lightning is probably introduced the pulpit if device goes wrong, and causes fault to be diffused into transformer station's main control equipment and makes the collapse of whole transformer station.Because security risk is huge, adopt the product of this type of on-line monitoring scheme almost not obtain transformer station's employing.
The utility model content
The purpose of the utility model is exactly for the defective that overcomes above-mentioned prior art existence a kind of arrester on-line monitoring system based on wireless sensor network to be provided, and this monitoring system can not introduced the pulpit with the thunderbolt energy, and security is higher.
The purpose of the utility model can realize through following technical scheme: a kind of arrester on-line monitoring system based on wireless sensor network; This monitoring system comprises data acquisition module, data processing module, server and monitoring terminal; Described data processing module, server and monitoring terminal are connected through data bus successively; It is characterized in that, also comprise wireless sensor network, be connected through wireless sensor network between described data acquisition module and the data processing module.The electric current and the voltage data of data collecting module collected lightning arrester bus; And these data are sent to data processing module through wireless sensor network; Data processing module is handled electric current and the voltage data that receives; Result is sent to server stores, and each monitor terminal reads the information that is stored on the server, and the running status of lightning arrester is monitored in real time.
Described data acquisition module comprises wireless leakage current sensor and wireless voltage phase detector, and wireless leakage current sensor all is connected with lightning arrester with wireless voltage phase detector, is respectively applied for the electric current and the voltage that detect lightning arrester.
Described wireless leakage current sensor is provided with three, connects the three-phase bus of lightning arrester respectively.
Described wireless voltage phase detector is provided with three, connects the three-phase bus of lightning arrester respectively.
Described data processing module comprises transmission base station and industrial computer; Described transmission base station is connected with industrial computer, and connects data acquisition module through wireless sensor network, and the transmission base station receives data from data acquisition module; Handle these data by industrial computer, and result is sent to server.
Described data bus comprises RS-485 bus or CAN bus.
Described wireless sensor network is the wireless communication networks of 2.4GHz, the communication modes that adopts TDMA burst THSS and FHSS pattern to combine.
Compared with prior art, the utility model has adopted wireless sensor technology, and each sensor and route and main frame all are through radio contact; The fault of any one sensor can not cause the collapse of whole monitoring network, can lightning current not introduced the pulpit yet, so bring any extra risk can for the electrical substation monitoring system; System reliability with height; And the lightning arrester condition monitoring system is on-the-spot arranges that wiring is simple and convenient, but monitoring system real-time remote monitoring lightning arrester each item running status amount, for operation and maintainer have saved a large amount of quantity of state collection in worksite work; Improve work efficiency, reduced security risk.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is elaborated.
Embodiment
As shown in Figure 1, a kind of arrester on-line monitoring system based on wireless sensor network, this monitoring system comprises data acquisition module 2, data processing module 3, server 4 and monitoring terminal 5.Data processing module 3, server 4 and monitoring terminal 5 are connected through RS-485 or CAN bus successively; Be connected through wireless sensor network 6 between data acquisition module 2 and the data processing module 3; This wireless sensor network 6 is the wireless communication networks of 2.4GHz, the communication modes that adopts TDMA burst THSS and FHSS pattern to combine.Data acquisition module 2 comprises wireless leakage current sensor 21 and wireless voltage phase detector 22; Each data acquisition module 2 is equipped with three wireless leakage current sensors 22 and three wireless voltage phase detectors 23; The three-phase bus that connects lightning arrester 1; Wireless leakage current sensor 22 detects three-phase current, and wireless voltage phase detector 23 detects three-phase voltage and for data processing equipment 3 reference voltage signal is provided.Data processing module 3 comprises transmission base station 31 and industrial computer 32.
The course of work of the utility model is: the electric current and the voltage data of wireless leakage current sensor 21 and wireless voltage phase detector 22 collection lightning arresters 1 bus; And by these data of wireless sensor network transmission; Be located at receiver received current and voltage data on the transmission base station 31; Handle through 32 pairs of these data of connected industrial computer, then result is sent to server 4 through RS-485 or CAN bus, the result that server 4 is preserved industrial computer 32; Each monitor terminal 5 reads the information that is stored on the server 4, and the running status of lightning arrester 1 is monitored in real time.
The principle of work of the utility model is: adopt Basic Law analyzing and testing leakage current of an arrester and diagnosis operation conditions.Usually the electric current of metal oxide arrester of flowing through comprises capacitive composition I CWith resistive composition I R, I CBe mainly the first-harmonic composition, I RThen except that containing the first-harmonic composition, also contain abundant harmonic components, this is that nonlinear characteristic by lightning arrester causes.Whether normal principal character is judged its I to lightning arrester exactly RIn normal scope, the monitoring system main task extracts I exactly from total current RUnder normal condition, its current in resistance property I RMuch smaller than capacity current I C, so total current mainly shows as I CThough I COn phase place, be ahead of I R90 °, but for both first-harmonic, under the situation of not introducing external reference information, be difficult to I RSeparate.Because I RWith this phase voltage same-phase, therefore can accurately ask for I as long as introduce this introducing voltage signal RComponent.
Based on above-mentioned theory; Wireless voltage phase detector 23 is measured the zero-crossing timing of each phase voltage and the each harmonic component of each phase voltage; Wireless leakage current sensor 22 sends current value to industrial computer 32 in voltage zero-cross, and the two fellowship calculates current in resistance property I R, wireless leakage current sensor 22 is measured the first-harmonic and each harmonic component of total leakage current, goes out resistive current component with wireless voltage phase detector 23 Coordination calculation.
In addition, system also provides a kind of 3 subharmonic auxiliary judgment technology.System extracts 3 subharmonic in voltage, the electric current, and 3 subharmonic increase in voltage signal, and electric current 3 subharmonic are also along with increase belongs to normal condition; 3 subharmonic are normal in voltage signal; Leakage current of an arrester 3 subharmonic increases show that then the sign of deterioration possibly appear in arrester valve piece made; System will compare the current in resistance property of current time simultaneously, and current ambient humidity, provide out the time of day of the inner valve block of lightning arrester.
The utility model verifies that to one group of 220kV Zinc-Oxide Arrester test figure is as shown in the table in the laboratory, and testing result tallies with the actual situation, and this system's accuracy of detection is high, good reliability, and test has obtained better effects.
Table 1220kV Zinc-Oxide Arrester current data
Owing to adopted wireless sensor technology, the lightning arrester condition monitoring system is on-the-spot arranges that wiring is simple and convenient, has relatively avoided moving the risk that lightning current is introduced the pulpit with same category of device, through verification experimental verification monitoring system data stabilization, identical basically with virtual condition.Monitoring system real-time remote monitoring lightning arrester each item running status amount, for the operation and the maintainer saved a large amount of quantity of state collection in worksite work, improved work efficiency, reduced security risk.
The utility model can be followed the tracks of converting equipment inherent vice development of real-time; The trend of making judges that when quantity of state is unusual, can send alerting signal immediately, relevant departments can carry out manual work to unusual device history data at any time and consult, analyze; Grasp the rule of development of ERST amount; And then can formulate very strong maintenance strategy to property, and shorten the repair time, improve the converting equipment operational reliability.The construction of lightning arrester condition monitoring system is that repair based on condition of component carries out to provide the maintenance foundation in a deep going way, and is also all significant with intelligent construction to the insulation control of equipment.

Claims (7)

1. arrester on-line monitoring system based on wireless sensor network; This monitoring system comprises data acquisition module, data processing module, server and monitoring terminal; Described data processing module, server and monitoring terminal are connected through data bus successively; It is characterized in that, also comprise wireless sensor network, be connected through wireless sensor network between described data acquisition module and the data processing module.
2. a kind of arrester on-line monitoring system according to claim 1 based on wireless sensor network; It is characterized in that; Described data acquisition module comprises wireless leakage current sensor and wireless voltage phase detector, and wireless leakage current sensor all is connected with lightning arrester with wireless voltage phase detector.
3. a kind of arrester on-line monitoring system based on wireless sensor network according to claim 2 is characterized in that described wireless leakage current sensor is provided with three, connects the three-phase bus of lightning arrester respectively.
4. a kind of arrester on-line monitoring system based on wireless sensor network according to claim 2 is characterized in that, described wireless voltage phase detector is provided with three, connects the three-phase bus of lightning arrester respectively.
5. a kind of arrester on-line monitoring system according to claim 1 based on wireless sensor network; It is characterized in that; Described data processing module comprises transmission base station and industrial computer, and described transmission base station is connected with industrial computer, and connects data acquisition module through wireless sensor network.
6. according to claim 1 or 5 described a kind of arrester on-line monitoring systems, it is characterized in that described data bus comprises RS-485 bus or CAN bus based on wireless sensor network.
7. a kind of arrester on-line monitoring system according to claim 1 based on wireless sensor network; It is characterized in that; Described wireless sensor network is the wireless communication networks of 2.4GHz, the communication modes that adopts TDMA burst THSS and FHSS pattern to combine.
CN2011203927868U 2011-10-16 2011-10-16 Lightning arrester on-line monitoring system based on wireless sensor network Expired - Lifetime CN202275124U (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103048577A (en) * 2011-10-16 2013-04-17 上海欣影电力科技发展有限公司 Wireless sensing lightning arrester online monitoring system
CN111157919A (en) * 2020-03-19 2020-05-15 江西省科学院能源研究所 Lightning arrester on-line monitoring system based on cloud and mist cooperation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103048577A (en) * 2011-10-16 2013-04-17 上海欣影电力科技发展有限公司 Wireless sensing lightning arrester online monitoring system
CN111157919A (en) * 2020-03-19 2020-05-15 江西省科学院能源研究所 Lightning arrester on-line monitoring system based on cloud and mist cooperation

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C14 Grant of patent or utility model
CP03 Change of name, title or address

Address after: 200436 Shanghai, Zhabei District Jiang Field Road No. 214, room 250, No. three

Patentee after: SHANGHAI XINYING POWERTECH CO., LTD.

Address before: 200070 Shanghai city Zhabei District moling Road No. 50 room 5406

Patentee before: Shanghai Xinying Power Technology Co.,Ltd.

C56 Change in the name or address of the patentee

Owner name: SHANGHAI XINYING POWERTECH CO., LTD.

Free format text: FORMER NAME: SHANGHAI XINYING POWER TECHNOLOGY DEVELOPMENT CO., LTD.

CX01 Expiry of patent term

Granted publication date: 20120613