CN101387560A - Switch cabinet parameter on-line monitoring device for electrical power system based on fiber optic sensor technology - Google Patents
Switch cabinet parameter on-line monitoring device for electrical power system based on fiber optic sensor technology Download PDFInfo
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- CN101387560A CN101387560A CN200810155121.8A CN200810155121A CN101387560A CN 101387560 A CN101387560 A CN 101387560A CN 200810155121 A CN200810155121 A CN 200810155121A CN 101387560 A CN101387560 A CN 101387560A
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Abstract
The invention discloses a power system switchgear online parameter monitoring device, based on optical fiber sensor technique, wherein the output of a MEMS optical fiber temperature sensor module unit is connected with the input of a sensing signal interface conversion circuit unit which output is connected with the input f a digit signal processing unit, the output of the digit signal processing unit is connected with a network interface and the input of a sound-light output alarm circuit unit. The invention utilizes optical fiber temperature sensors to process distribution real-time signal acquisition on the parameters of the internal contacts of a power system switchgear in operation, utilizes digit signal processing to realize online detection of a power system switchgear, utilizes optical communication to real-time transmit the temperature parameters of a power system switchgear, realizes the online real-time detection of the power system switchgear treated by digit signal processing and improves the safe operation monitoring level of power system switchgears.
Description
Technical field
The present invention relates to a kind of electric system switch cubicle on-Line Monitor Device, specifically a kind of MOEM (Micro-Optical-Electro-Mechanical System with the advanced person, Micro-Opto-Electro-Mechanical Systems) optical fiber sensing technology and computer data acquiring and analytical technology combine, by network communication mode, realize electric system switch cabinet parameter on-Line Monitor Device based on fiber optic sensor technology.
Background technology
The electric system switch cubicle is the visual plant in the electric system, and its good operation has great importance to power grid security.But the electric system switch cubicle is in operation, owing to inevitably be subjected to the influence of various factorss such as electricity, heat, vibration, environment, insulation ag(e)ing, the continuous deterioration of its technical feature makes running status not good.At present, prophylactic repair and safety test are the main means that guarantee the safe operation of electric system switch cubicle, but because the time between overhauls(TBO) is long, existing preventive trial project is insensitive, untimely to the developing fault reflection of electric system switch cubicle, speed of development often can not in time be found several days local defects to several weeks, cause taking place various faults (as crossing hot fault, discharge property fault, overheated double discharge fault, mechanical fault etc.) and power failure, cause directly and indirect economic loss and social influence.Therefore, need advanced technological means, the electric system switch cubicle is carried out on-line monitoring effectively, grasp the running status of electric system switch cubicle in real time, advance you with the prophylactic repair of repair and maintenance replacement targetedly, reduce loss of outage, realize the initial failure forecast, avoid serious accident to take place.The on-line monitoring of electric system switch cubicle running status is the development trend of safe operation of power system.
Electric system switch cubicle parameter optical fiber on-line monitoring technique is based on 21 century advanced person's MOEM (Micro-Opto-Electro-Mechanical Systems) optical fiber sensing technology, by the MEMS fibre optic temperature sensor, the running status of on-line monitoring electric system switch cubicle, because Fibre Optical Sensor excellent insulation performance, profile be small and exquisite, be not subjected to electromagnetic interference (EMI), so can be directly installed on switch cubicle inside, have better detection sensitivity and localization of fault ability.Also there is not a kind of electric system switch cabinet parameter on-Line Monitor Device in the market based on fiber optic sensor technology.
Summary of the invention
The purpose of this invention is to provide a kind of electric system switch cabinet parameter on-Line Monitor Device based on fiber optic sensor technology, this monitoring device using optical fibre sensor carries out the live signal collection to the electric system switch cabinet parameter of running status, and realize on-line monitoring with Digital Signal Processing, realize unmanned and report to the police automatically.
The object of the present invention is achieved like this:
A kind of electric system switch cubicle on-Line Monitor Device based on fiber optic sensor technology, it comprises MEMS fibre optic temperature sensor modular unit, transducing signal interface conversion circuit unit, digital signal processing (DSP) unit, network interface and output sound light alarming circuit unit; MEMS fibre optic temperature sensor modular unit output terminal is connected with transducing signal interface conversion circuit unit input end, and transducing signal interface conversion circuit unit output terminal is connected with the digital signal processing unit input end; The digital signal processing unit output terminal is connected with the input end of network interface with output sound light alarming circuit unit.
Among the present invention, MEMS fibre optic temperature sensor modular unit output terminal TX1/RX1 links to each other with transducing signal interface conversion circuit unit input end.Transducing signal interface conversion circuit unit output terminal TX/RX/CON1 links to each other with the digital signal processing unit input end.Digital signal processing unit output terminal TX45/RX45/OUT1-n links to each other with the input end of network interface with output sound light alarming circuit unit.
Among the present invention, MEMS fibre optic temperature sensor modular unit, adopt sonde-type optical fiber grating temperature-measuring meter that the switch cubicle inside contact is carried out the distributed real-time monitoring: 1. in every switch cubicle, a sonde-type optical fiber grating temperature-measuring meter is installed on each static contact, can be in 1 second the accurately slight change of sensing contact temperature, resolution is less than 0.1 ℃; 2. at the joint (as the junction of switch cubicle and bus) of every bus and the easy hot spot of emphasis laying optical fiber grating thermo detector optionally, guarantee system-wide safe power supply.
Among the present invention, described digital signal processing unit is made of TI 2000 series DSP and level transformating chip 74LVC14.Transducing signal interface conversion circuit unit is reached (STC89C5402) by one group of multi-disc STC single-chip microcomputer and serial communication chip for driving MAX232 and connector DB9 formation.Network interface and output sound light alarming circuit unit are made of network-driven chip, RJ45 connector, N type triode and power relay (JQC-3F-12VDC).
Principle of work of the present invention is: according to the technical requirement of electric system switch cubicle on-line parameter monitoring, design temperature parameter in transducing signal interface conversion circuit unit single-chip microcomputer and digital signal processing unit.After powering up work, single-chip microcomputer and digital signal processing chip DSP are carried out initialization operation, after initialization is finished, LED in the device provides the status signal of flicker, the multi-channel optical fibre sensor is input to digital signal processing unit by the parameter signals of RS232 serial communication port output after the conversion of transducing signal interface conversion circuit unit, after digital signal processing, service data is delivered in transformer station pulpit or the control room.When electric system switch cubicle generation abnormal conditions, carry out sound automatically, light is reported to the police and send alarming short message to the operator on duty, realizes unmanned.
The present invention's running status of Fibre Optical Sensor on-line monitoring electric system switch cubicle, and directly value of consult volume is transmitted after digital signal processing in the mode of light signal, real time on-line monitoring electric system switch cubicle running status is delivered to service data in transformer station pulpit or the control room.When the joint (as the junction of switch cubicle and bus) of electric system switch cubicle inside contact or bus when excess temperature is overheated, automatically carry out sound, light is reported to the police and send alarming short message to the operator on duty, for the timely repair and maintenance of electric system switch cubicle provides believable foundation, improve electric system switch cubicle safe operation monitoring level.Because electric system switch cubicle on-Line Monitor Device adopts full optical fiber detection technique, inner detection probe and the transmission line of installing of electric system switch cubicle all is the optical fiber material, therefore, be not electrically connected between on-Line Monitor Device and the electric system switch cubicle, to electrical network without any influence.
Compared with prior art, the present invention combines photoelectric sense technology and Digital Signal Processing, mode by optical communication transmits the temperature parameter of electric system switch cubicle in real time, realizes the online multiparameter real-time detection function of electric system switch cubicle after digital signal processing.The present invention has realized unmanned and has reported to the police automatically, is a kind of brand-new and safe and reliable electric system switch cabinet parameter on-Line Monitor Device, has goodish application prospect and market outlook.The present invention will improve electric system switch cubicle safe operation on-line monitoring technique level greatly, to reducing the operation of power networks cost, realize the automation of transformation substations and scientific management, ensure that better the reliable and secure property of electrical production is significant.
Description of drawings
Fig. 1 circuit structure block diagram of the present invention;
Fig. 2 is a MEMS fibre optic temperature sensor modular structure synoptic diagram among the present invention;
Fig. 3 is a circuit diagram of the present invention.
Embodiment
A kind of electric system switch cubicle on-Line Monitor Device based on fiber optic sensor technology of the present invention comprises MEMS fibre optic temperature sensor modular unit 1, transducing signal interface conversion circuit unit 2, digital signal processing (DSP) unit 3, network interface and output sound light alarming circuit unit 4.
MEMS fibre optic temperature sensor modular unit 1 output terminal TX1/RX1 links to each other with transducing signal interface conversion circuit unit 2 input ends.Transducing signal interface conversion circuit unit 2 output terminal TX/RX/CON1 link to each other with digital signal processing unit 3 input ends.Digital signal processing unit 3 output terminal TX45/RX45/OUT1-n link to each other with the input end of network interface with output sound light alarming circuit unit 4.
Transducing signal interface conversion circuit unit 3 can have the Fibre Optical Sensor of a plurality of configuration RS232 serial ports simultaneously.The digital signal processing unit 3 configuration 10MHZ and the 100MHZ network bandwidth and transformer station pulpit or control room communicate.Network interface and output sound light alarming circuit unit 4 can provide the SMS alarm of the sound and light alarm and the mobile phone of various ways simultaneously.
The present invention before use, at first according to the technical requirement of electric system switch cubicle on-line parameter monitoring, design temperature parameter in transducing signal interface conversion circuit unit single-chip microcomputer and digital signal processing unit.After powering up work, single-chip microcomputer and digital signal processing chip DSP are carried out initialization operation, after initialization is finished, LED in the device provides the status signal of flicker, the multi-channel optical fibre sensor is input to digital signal processing unit by the parameter signals of RS232 serial communication port output after the conversion of transducing signal interface conversion circuit unit, after digital signal processing, service data is delivered in transformer station pulpit or the control room.When electric system switch cubicle generation abnormal conditions, the present invention carries out sound automatically, light is reported to the police and send alarming short message to the operator on duty, realizes unmanned.
The present invention combines photoelectric sense technology and Digital Signal Processing, mode by optical communication transmits electric system switch cubicle temperature parameter in real time, the on-line parameter of realizing the electric system switch cubicle after digital signal processing detects in real time, and can realize unmanned and warning automatically, safe and reliable.
Claims (7)
1, a kind of electric system switch cubicle on-line parameter monitoring device based on fiber optic sensor technology, it is characterized in that: it comprises MEMS fibre optic temperature sensor modular unit (1), transducing signal interface conversion circuit unit (2), digital signal processing unit (3) and network interface and output sound light alarming circuit unit (4); MEMS fibre optic temperature sensor modular unit (1) output terminal is connected with transducing signal interface conversion circuit unit (2) input end, and transducing signal interface conversion circuit unit (2) output terminal is connected with digital signal processing unit (3) input end; Digital signal processing unit (3) output terminal is connected with the input end of network interface with output sound light alarming circuit unit (4).
2, the electric system switch cubicle on-line parameter monitoring device based on fiber optic sensor technology according to claim 1, it is characterized in that: MEMS fibre optic temperature sensor modular unit (1), adopt sonde-type optical fiber grating temperature-measuring meter that the switch cubicle inside contact is carried out the distributed real-time monitoring.
3, the electric system switch cubicle on-line parameter monitoring device based on fiber optic sensor technology according to claim 2, it is characterized in that: in every switch cubicle, a sonde-type optical fiber grating temperature-measuring meter is installed on each static contact, the accurately slight change of sensing contact temperature in 1 second, resolution is less than 0.1 ℃; Joint and the easy hot spot laying optical fiber of emphasis grating thermo detector at every bus.
4, the electric system switch cubicle on-line parameter monitoring device based on fiber optic sensor technology according to claim 1, it is characterized in that: transducing signal interface conversion circuit unit (2) comprises one group of STC single-chip microcomputer.
5, the electric system switch cubicle on-line parameter monitoring device based on fiber optic sensor technology according to claim 1, it is characterized in that: digital signal processing unit (3) comprises the TI2000 series DSP.
6, the electric system switch cubicle on-line parameter monitoring device based on fiber optic sensor technology according to claim 1 is characterized in that: network interface and output sound light alarming circuit unit (4) are made of network-driven chip, RJ45 connector, N type triode and power relay.
7, the electric system switch cubicle on-line parameter monitoring device based on fiber optic sensor technology according to claim 1 is characterized in that: network interface and output sound light alarming circuit unit (4) comprise sound and light alarm and SMS warning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810155121.8A CN101387560A (en) | 2008-10-23 | 2008-10-23 | Switch cabinet parameter on-line monitoring device for electrical power system based on fiber optic sensor technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810155121.8A CN101387560A (en) | 2008-10-23 | 2008-10-23 | Switch cabinet parameter on-line monitoring device for electrical power system based on fiber optic sensor technology |
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| CN101387560A true CN101387560A (en) | 2009-03-18 |
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| CN200810155121.8A Pending CN101387560A (en) | 2008-10-23 | 2008-10-23 | Switch cabinet parameter on-line monitoring device for electrical power system based on fiber optic sensor technology |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2454766C2 (en) * | 2010-05-24 | 2012-06-27 | Закрытое акционерное общество "Межрегиональное Производственное Объединение Технического Комплектования "Технокомплект" | Cabinet of cubicle switchboard |
| CN103728048A (en) * | 2013-11-15 | 2014-04-16 | 成都市宏山科技有限公司 | Optical fiber sensing temperature detection device for bus connector |
| CN104374423A (en) * | 2014-10-21 | 2015-02-25 | 深圳供电局有限公司 | Cluster high-voltage switch cabinet online monitoring device and monitoring method thereof |
| CN116105890A (en) * | 2023-04-04 | 2023-05-12 | 石家庄宜中机电技术有限公司 | Colliery is high tension switchgear running temperature distributed optical fiber on-line monitoring device in pit |
-
2008
- 2008-10-23 CN CN200810155121.8A patent/CN101387560A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2454766C2 (en) * | 2010-05-24 | 2012-06-27 | Закрытое акционерное общество "Межрегиональное Производственное Объединение Технического Комплектования "Технокомплект" | Cabinet of cubicle switchboard |
| CN103728048A (en) * | 2013-11-15 | 2014-04-16 | 成都市宏山科技有限公司 | Optical fiber sensing temperature detection device for bus connector |
| CN104374423A (en) * | 2014-10-21 | 2015-02-25 | 深圳供电局有限公司 | Cluster high-voltage switch cabinet online monitoring device and monitoring method thereof |
| CN116105890A (en) * | 2023-04-04 | 2023-05-12 | 石家庄宜中机电技术有限公司 | Colliery is high tension switchgear running temperature distributed optical fiber on-line monitoring device in pit |
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Open date: 20090318 |