CN103412213A - Crosslinked polyethylene high-voltage cable on-line monitoring and early warning system - Google Patents
Crosslinked polyethylene high-voltage cable on-line monitoring and early warning system Download PDFInfo
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- CN103412213A CN103412213A CN2013103161000A CN201310316100A CN103412213A CN 103412213 A CN103412213 A CN 103412213A CN 2013103161000 A CN2013103161000 A CN 2013103161000A CN 201310316100 A CN201310316100 A CN 201310316100A CN 103412213 A CN103412213 A CN 103412213A
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Abstract
The invention discloses a crosslinked polyethylene high-voltage cable on-line monitoring and early warning system which is mainly composed of an on-site data collection device, a data transmission network and a monitoring center. Various state data of a sensor sampling high-voltage cable and the environment where the sensor sampling high-voltage cable is located are collected by the on-site data collection device through measurement sensors of all function modules, and then reported to an intelligent data management platform of the monitoring center through the data transmission network. The crosslinked polyethylene high-voltage cable on-line monitoring and early warning system has comprehensive functions, is capable of achieving comprehensive, real-time and automatic monitoring and early warning, and meanwhile is compact in structure, stable, reliable and convenient to install and maintain. When the crosslinked polyethylene high-voltage cable on-line monitoring and early warning system is applied, high-voltage cable operation maintainers can well know the state of the cable and the state of the environment where the cable operates at any time and find defects in time, and therefore power accidents are avoided.
Description
Technical field
The invention belongs to the high-tension cable monitoring technical field, relate in particular to a kind of crosslinked polyethylene high-tension cable on-line monitoring early warning system.
Background technology
The ac high-voltage long-distance transmission line of 110kV and above grade adopts long apart from overhead transmission line usually, when entering urban area, overhead transmission line generally can access corresponding transformer station by the crosslinked polyethylene high-tension cable (hereinafter to be referred as " high-tension cable ") that is laid in underground, then by power equipments such as transformers, convert different electric pressures to, give various electricity consumptions zone transmission of electricity in urban district.If power failure occurs suddenly in transmission line of electricity, can cause the city large-area power-cuts, when serious, will cause whole city to have a power failure, bring immeasurable economic loss.In order to guarantee transmission line of electricity safety, stable operation, need to carry out Real-Time Monitoring to overhead transmission line and the high-tension cable that is laid in underground state, and early warning in time before fault occurs, avoid occurring the electric power accident had a power failure suddenly.
Now more to the monitoring means of overhead transmission line, and the technology comparative maturity.But different from overhead transmission line, high-tension cable is laid in underground, the multiple system of layings such as tunnel, direct-burried, cable duct are arranged, the running environment complexity, monitoring means is less, and this has brought very large difficulty for daily operation maintenance.At present detection method and the means of the underground high-tension cable that is laid in are divided into to tradition and modernization two classes, specific as follows:
1, traditional detection method and means
(1) regular or irregular manual patrol, in order to find the abnormal and hidden danger of high-tension cable and affiliated facility thereof and process in time.
(2) regularly hv cable termination, the first-class critical cables annex of indirect are carried out to artificial infrared thermal imaging test.
(3) regular manual measurement high-tension cable metal sheath electric current.
(4) every year important Voltage Cable Lines Construction is carried out to preventive trial one time, main project comprises that testing insulation resistance of main, insulating sheath resistance and major insulation does AC voltage withstand test.
In real work, because Voltage Cable Lines Construction is more and more, all strictly by rules, carry out artificial daily operation maintenance and service work is difficult to realize.High-voltage cable joint or terminal or in special electric power work well, otherwise on the high-tension cable shaft tower, the state parameters such as the metal sheath electric current of these cables of manual measurement or surface temperature need to spend a large amount of human and material resources, financial resources; Simultaneously owing to being regularly detection or making an inspection tour, usually can't know the real-time running state of high-tension cable in section the interval time of patrolling and examining for twice, so that before the high-tension cable fault occurred, the operation maintenance personnel can't obtain necessary early warning information in time, had caused some unnecessary economic losses.
2, modern monitoring method and means
Be mainly the various on-Line Monitor Device of utilizing modern power electronics technology, computer technology and mechanics of communication design to produce, the host computer Real-time Collection also shows various Monitoring Data, realizes the purpose of high-tension cable state on_line monitoring.Yet this type of on-line equipment of different manufacturers production only has a kind of function usually, namely can only measure a state parameter of high-tension cable, for example:
(1) high-tension cable metal sheath electric current on-Line Monitor Device, by being arranged on the survey sensor on high-voltage cable middle joint or terminals metal sheath, the electric current of Real-Time Monitoring high-tension cable metal sheath.
(2) distributed fiber temperature measuring device, utilize optical fiber measurement high-tension cable surface temperature, by the Special temperature measurement optical fiber on the high-tension cable surface that is laid in, the surface temperature of Real-Time Monitoring high-tension cable, optical fiber need to paste the high-tension cable surface and lay, and is applied to terminal from top.
(3) distributed partial-discharge measuring device, by being arranged on measurement of partial discharge sensor and the harvester on high-voltage cable middle joint or terminals, measure in real time the shelf depreciation situation of the significant points such as high-voltage cable joint, grasp the insulation situation of high-tension cable.
Because the high-tension cable on-Line Monitor Device there is no unified standard criterion at aspects such as profile specification, data acquisition modes, so different vendor can and produce relevant apparatus according to the design of the characteristics of own product, research and development, cause these to install at the scene mounting means, networking, the aspect such as integrated has different requirements.The sensor that device is joined that even some function is identical all has larger difference at aspects such as profile, mounting meanss, there is no versatility, so that the on-the-spot confusion of installing, difficult in maintenance; In addition, the on-Line Monitor Device of the types of functionality that different vendor produces is usually different at aspects such as profile, size, performances, to integrate them, all be arranged in the limited space of high-voltage cable joint well, the comprehensive monitoring that realizes the high-tension cable state is very loaded down with trivial details, and system performance also can be unstable.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of complete function, compact conformation, reliable and stable crosslinked polyethylene high-tension cable on-line monitoring early warning system.
For solving the problems of the technologies described above, the present invention is by the following technical solutions: crosslinked polyethylene high-tension cable on-line monitoring early warning system, mainly on-site data gathering device, three parts of data transmission network and Surveillance center, consist of, the on-site data gathering device connects Surveillance center by data transmission network; The on-site data gathering device comprises communication module, main control module and six functional modules, six functional modules are respectively high-tension cable metal sheath function of current module, surface temperature functional module, transient short-circuit fault current functional module, vibration information functional module, partial discharge quantity functional module, environmental functional module, and each functional module contains corresponding monitoring modular and survey sensor; Communication module connects main control module, and main control module connects respectively six functional modules.
The on-site data gathering device, by the survey sensor sampling high-tension cable of each each functional module and the various status datas of environment of living in thereof, then reports the intelligent data management platform of Surveillance center by data transmission network.
Surveillance center comprises intelligent data management platform and communication apparatus, and the intelligent data management platform comprises Database Systems, data management system and data distribution system.
Surveillance center possesses the alarm mode that GSM SMS notification, screen display interface prompting and Email are reported to the police; The collection of intelligent data management platform, analysis, processing and permanent storage Condition Monitoring Data, and on Surveillance center's screen, show in real time all status datas, various data sheet functions are provided simultaneously; Database Systems are used for depositing the Condition Monitoring Data of various interim or permanent storage; Data management system is based on design of database system, is used for collecting the various Condition Monitoring Datas that the on-site data gathering device reports, and, to these data analysis, processing, statistics and storage, simultaneously the information such as sorts of systems user is managed; Data distribution system also is based on database design, adopts the mode of website to issue various high-voltage cable state monitoring data.
Data transmission network is wireless network or cable network.
Wireless network is GPRS or 3G network, and cable network is industrial bus or Ethernet.
Monitoring modular comprises that the anti-electromagnetic interference (EMI) connected is successively inhaled wave circuit I, anti-electromagnetic interference (EMI) is inhaled wave circuit II, anti-electromagnetic interference (EMI) suction wave circuit III, signal processing circuit, A/D change-over circuit and technical grade embedded scm.
Problem for current crosslinked polyethylene high-tension cable monitoring technology existence, the inventor has designed a kind of crosslinked polyethylene high-tension cable on-line monitoring early warning system, mainly by on-site data gathering device, 3 parts of data transmission network and Surveillance center, formed, the on-site data gathering device, by the survey sensor sampling high-tension cable of each each functional module and the various status datas of environment of living in thereof, then reports the intelligent data management platform of Surveillance center by data transmission network.The present invention has following outstanding advantages:
Complete function, to high-tension cable and the state that lays environment thereof realized comprehensively, in real time, automatic monitoring and early warning, in real time namely, the information such as continuous monitoring high-tension cable metal sheath electric current, surface temperature, transient short-circuit fault current, vibration information, partial discharge quantity and ambient condition.
Wherein, the on-site data gathering device adopts modular design, compact conformation, and it integrates multiple tradition and modernization monitoring method and means, has realized the integrated data acquisition purpose, conveniently simultaneously installs and safeguards; According to function, the various survey sensor profile of mounting means Uniting specification, avoid the field wiring confusion.
In addition, the present invention has increased the multiple early warning means such as the short notice of GSM, daemon software prompting, Email warning on the basis of existing on-line monitoring technique, realized the purpose of high-tension cable state comprehensive on-line monitoring, early warning, be convenient to the state that high-tension cable operation maintenance personnel grasp cable and running environment thereof at any time, find in time defect, avoid occurring electric power accident.
The accompanying drawing explanation
Fig. 1 is the structural representation of crosslinked polyethylene high-tension cable on-line monitoring early warning system of the present invention.
Fig. 2 is the structural representation of on-site data gathering device in on-line monitoring early warning system of the present invention.
Fig. 3 is the structural representation of the functional module of on-site data gathering device in on-line monitoring early warning system of the present invention.
In figure: 1 on-site data gathering device, 2 data transmission networks, 3 Surveillance center, 4 communication modules, 5 main control modules, 6 functional modules, 7 high-tension cable metal sheath function of current modules, 8 surface temperature functional modules, 9 transient short-circuit fault current functional modules, 10 vibration information functional modules, 11 partial discharge quantity functional modules, 12 environmental functional modules, 13 survey sensors, 14 monitoring modulars, 15 anti-electromagnetic interference (EMI) are inhaled wave circuit I, 16 anti-electromagnetic interference (EMI) are inhaled wave circuit II, 17 anti-electromagnetic interference (EMI) are inhaled wave circuit III, 18 signal processing circuits, the 19A/D change-over circuit, 20 technical grade embedded scms, 21 client computers, 22 intelligent data management platforms, 23 communication apparatus.
Embodiment
As shown in Figures 1 to 3, crosslinked polyethylene high-tension cable on-line monitoring early warning system of the present invention, adopt distributed frame, mainly on-site data gathering device 1,3 three parts of data transmission network 2 and Surveillance center, consist of, the on-site data gathering device connects Surveillance center by data transmission network.According to the length difference of Monitoring High Voltage Cable, usually need use 1 cover or overlap the field data harvester more.The on-site data gathering device adopts modular design, comprise communication module 4, main control module 5 and six functional modules 6, communication module connects main control module, main control module connects respectively six functional modules (high-tension cable metal sheath function of current module 7, surface temperature functional module 8, transient short-circuit fault current functional module 9, vibration information functional module 10, partial discharge quantity functional module 11, environmental functional module 12), each module all adopts the design of technical grade embedded scm, except communication module and main control module, separate during other operations of module for status monitoring, be independent of each other, if there is a module to break down, can not cause the device machine failure, greatly improved the stability of system, reliability.Each functional module contains corresponding monitoring modular 14 and survey sensor 13, and monitoring modular comprises that the anti-electromagnetic interference (EMI) connected is successively inhaled wave circuit I15, anti-electromagnetic interference (EMI) is inhaled wave circuit II16, anti-electromagnetic interference (EMI) suction wave circuit III17, signal processing circuit 18, A/D change-over circuit 19 and technical grade embedded scm 20.Data transmission network is GPRS or 3G wireless network, can be also the various industrial bus that form of communication cable or optical cable, Ethernet etc., several data transmission network mode has increased dirigibility and the diversity of on-site data gathering device networking, has greatly improved the application of system under various complicated.Surveillance center comprises intelligent data management platform 22 and supporting communication apparatus 23, system is equipped with different communication apparatus (as wireless telecommunications system or wire communication equipment) according to the type of data transmission network, be used for receiving the Condition Monitoring Data that the on-site data gathering device reports, be transferred to that the intelligent data management platform is analyzed, processed, statistics and permanent storage; The intelligent data management platform comprises Database Systems (professional database), data management system and data distribution system.
The high-tension cable surrounding enviroment are usually comparatively severe, there is very strong electromagnetic interference (EMI), there was dampness in the air, environment temperature is sometimes up to 50 degree left and right, in order to ensure the system data harvester can be reliable and stable under rugged surroundings work, various function module circuit plates electronic devices and components used in the on-site data gathering device, integrated circuit is all selected by industrial rank, the satisfied temperature scope is in the environment for use of-25 degree～85 degree, and in the input of signal and power supply, on output interface, adopt at least 3 grades of anti-electromagnetic interference (EMI) to inhale wave circuit, each function module circuit plate is used and has insulation simultaneously, moistureproof, anticreep, shockproof, dustproof, anticorrosion, anti-aging, the coating of anti-corona applies, guaranteed that device is strong in electromagnetic interference (EMI), high temperature, stable operation in the rugged surroundings of high humidity.
The on-site data gathering device, by the survey sensor sampling high-tension cable of each each functional module and the various status datas of environment of living in thereof, then reports the intelligent data management platform of Surveillance center by data transmission network.Surveillance center possesses the alarm mode that GSM SMS notification, screen display interface prompting and Email are reported to the police, and when early warning information occurring, gets final product timely and effective notice high-tension cable operation maintenance personnel; The collection of intelligent data management platform, analysis, processing and permanent storage Condition Monitoring Data, and on Surveillance center's screen, show in real time all status datas, various data sheet functions are provided simultaneously; Database Systems are used for depositing the Condition Monitoring Data of various interim or permanent storage; Data management system is based on design of database system, is used for collecting the various Condition Monitoring Datas that the on-site data gathering device reports, and, to these data analysis, processing, statistics and storage, simultaneously the information such as sorts of systems user is managed; Data distribution system also is based on database design, adopts the mode of website to issue various high-voltage cable state monitoring data, and the WEB browsers such as other client computers 21 use IE of LAN (Local Area Network) inside are checked these data.
On-line monitoring early warning system data transmission procedure of the present invention: at first each measurement function module of on-site data gathering device is by gathering high-tension cable with the corresponding survey sensor of self function and laying the status data of environment, and these status datas are aggregated into to main control module carry out data packings and process, and convert the data layout of standard to, be transferred to communication module; Then these data report the intelligent data management platform of Surveillance center by data transmission network, Platform Server is processed, analyzes, is added up data, and the data permanent storage in Database Systems, finally various status datas are distributed to the client computer of LAN (Local Area Network) inside with the form of website, for high-tension cable operation maintenance personnel inquiry.
For avoiding high-tension cable to lay the functional module permanent damage that strong electromagnetic in environment causes data collector, in functional module, designed the multistage suction wave circuit of anti-electromagnetic interference (EMI), be that the status data signal that survey sensor obtains is inhaled wave circuit III and is transferred to signal processing circuit through anti-electromagnetic interference (EMI) suction wave circuit I, anti-electromagnetic interference (EMI) suction wave circuit II, anti-electromagnetic interference (EMI), the technical grade embedded scm that finally is transferred to corresponding module by the A/D change-over circuit is done further processing.
Claims (7)
1. a crosslinked polyethylene high-tension cable on-line monitoring early warning system, is characterized in that mainly on-site data gathering device, three parts of data transmission network and Surveillance center, consisting of, and the on-site data gathering device connects Surveillance center by data transmission network; Described on-site data gathering device comprises communication module, main control module and six functional modules, six functional modules are respectively high-tension cable metal sheath function of current module, surface temperature functional module, transient short-circuit fault current functional module, vibration information functional module, partial discharge quantity functional module, environmental functional module, and each functional module contains corresponding monitoring modular and survey sensor; Communication module connects main control module, and main control module connects respectively six functional modules.
2. crosslinked polyethylene high-tension cable on-line monitoring early warning system according to claim 1, it is characterized in that: described on-site data gathering device, by the survey sensor sampling high-tension cable of each each functional module and the various status datas of environment of living in thereof, then reports the intelligent data management platform of Surveillance center by data transmission network.
3. crosslinked polyethylene high-tension cable on-line monitoring early warning system according to claim 1, it is characterized in that: described Surveillance center comprises intelligent data management platform and communication apparatus, and the intelligent data management platform comprises Database Systems, data management system and data distribution system.
4. crosslinked polyethylene high-tension cable on-line monitoring early warning system according to claim 3 is characterized in that: described Surveillance center possesses the alarm mode that GSM SMS notification, screen display interface prompting and Email are reported to the police; The collection of described intelligent data management platform, analysis, processing and permanent storage Condition Monitoring Data, and on Surveillance center's screen, show in real time all status datas, various data sheet functions are provided simultaneously; Described Database Systems are used for depositing the Condition Monitoring Data of various interim or permanent storage; Data management system is based on design of database system, is used for collecting the various Condition Monitoring Datas that the on-site data gathering device reports, and, to these data analysis, processing, statistics and storage, simultaneously the information such as sorts of systems user is managed; Data distribution system also is based on database design, adopts the mode of website to issue various high-voltage cable state monitoring data.
5. crosslinked polyethylene high-tension cable on-line monitoring early warning system according to claim 1, it is characterized in that: described data transmission network is wireless network or cable network.
6. crosslinked polyethylene high-tension cable on-line monitoring early warning system according to claim 5, it is characterized in that: described wireless network is GPRS or 3G network, described cable network is industrial bus or Ethernet.
7. crosslinked polyethylene high-tension cable on-line monitoring early warning system according to claim 1 is characterized in that: described monitoring modular comprises that the anti-electromagnetic interference (EMI) connected successively inhales that wave circuit I, anti-electromagnetic interference (EMI) inhale wave circuit II, anti-electromagnetic interference (EMI) is inhaled wave circuit III, signal processing circuit, A/D change-over circuit and technical grade embedded scm.
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| CN104267302A (en) * | 2014-09-02 | 2015-01-07 | 山东中泰阳光电气科技有限公司 | Online monitoring system based on tubular busbar |
| CN104865473A (en) * | 2015-05-29 | 2015-08-26 | 国家电网公司 | Cable monitoring method and device |
| CN105300450A (en) * | 2015-11-04 | 2016-02-03 | 成都聚智工业设计有限公司 | Novel cable detection device |
| CN107422680A (en) * | 2017-05-12 | 2017-12-01 | 中国海洋石油总公司 | A kind of tension leg platform (TLP) field monitoring management system, method |
| CN110267223A (en) * | 2019-05-13 | 2019-09-20 | 广州供电局有限公司 | Communication system, monitoring system, method and the storage medium of cable monitoring data |
| CN111752173A (en) * | 2020-07-24 | 2020-10-09 | 中交第一航务工程局有限公司 | Novel submarine tunnel power communication control system and control method thereof |
| CN112036810A (en) * | 2020-08-11 | 2020-12-04 | 广州番禺电缆集团有限公司 | Cable monitoring method, device, equipment and storage medium based on intelligent equipment |
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