CN201107631Y - Transformer on-line monitoring device based on fiber optic sensor technology - Google Patents
Transformer on-line monitoring device based on fiber optic sensor technology Download PDFInfo
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- CN201107631Y CN201107631Y CN 200720042623 CN200720042623U CN201107631Y CN 201107631 Y CN201107631 Y CN 201107631Y CN 200720042623 CN200720042623 CN 200720042623 CN 200720042623 U CN200720042623 U CN 200720042623U CN 201107631 Y CN201107631 Y CN 201107631Y
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Abstract
The utility model discloses a transformer on-line monitor device that is based on the technology of the optical-fiber sensor, which comprises an MEMS optical-fiber temperature sensor modular unit, an MEMS optical-fiber vibration sensor modular unit, an MEMS optical-fiber ultrasonic sensor modular unit, a digital signal processing unit, a sensing signal interface transformation circuit unit, an internet interface and an output acoustic-optic alarm circuit. The utility model uses an optical-fiber sensor to perform the real-time signal collection of the parameters of the transformer at the running status, and uses the digital signal processing to realize the on-line monitoring of the transformer. The utility model performs the real-time transmission of the temperature, the vibration and the ultrasonic parameters of the transformer in the way of the optical communication, and realizes the on-line real-time monitoring of the transformer of the electric-power system after the digital signal processing, thereby realizing the unattended operation of the transformer and improving the secure operation monitoring level of the transformer.
Description
Technical field
The utility model relates to a kind of transformer online monitoring device, specifically with advanced person's MOEM (Micro-Optical-Electro-Mechanical System, Micro-Opto-Electro-Mechanical Systems) optical fiber sensing technology and computer data acquiring and analytical technology combine, by network communication mode, realize the transformer online monitoring device based on fiber optic sensor technology of electric system transformer real time on-line monitoring.
Background technology
Transformer is the key equipment in the electric system, and its good operation has great importance to power grid security.But transformer 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 transformer safe operation, but because the time between overhauls(TBO) is long, existing preventive trial project is insensitive, untimely to the developing fault reflection of transformer, speed of development often can not in time be found several days local defects to several weeks, even cause taking place various faults (as crossing hot fault, discharge property fault, overheated double discharge fault, mechanical fault etc.) and major accident, cause part and even large-area power-cuts, cause huge direct and indirect economic loss and social influence.Therefore, press for advanced technological means, transformer is carried out on-line monitoring effectively, grasp the running status of transformer in real time, with the prophylactic repair of repair and maintenance replacement targetedly, reduce loss of outage, realize the safe operation target that initial failure is forecast, avoided serious accident to take place.The on-line monitoring of transformer running status is the development trend of transformer safe operation.
Transformer many reference amounts optical fiber on-Line Monitor Device is based on 21 century advanced person's MOEM (Micro-Opto-Electro-Mechanical Systems) optical fiber sensing technology, by polytype Fibre Optical Sensor, running status as on-line monitoring transformers such as MEMS fibre optic temperature sensor, MEMS optical fibre vibration sensor, MEMS optical fibre ultrasonic sensors, 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 transformer inside, have better detection sensitivity and localization of fault ability.
Summary of the invention
The purpose of this utility model provides a kind of transformer online monitoring device based on fiber optic sensor technology, this device using optical fibre sensor carries out the live signal collection to the transformer parameter of running status, and realize on-line monitoring with Digital Signal Processing, realize unmanned and report to the police automatically.
The purpose of this utility model is achieved in that
A kind of transformer online monitoring device based on fiber optic sensor technology, it comprises MEMS fibre optic temperature sensor modular unit, MEMS optical fibre vibration sensor modular unit, MEMS optical fibre ultrasonic 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, MEMS optical fibre vibration sensor modular unit output terminal, MEMS optical fibre ultrasonic sensor modular unit output terminal all are 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.
In the utility model, MEMS fibre optic temperature sensor modular unit output terminal TX1/RX1 links to each other with transducing signal interface conversion circuit unit input end, MEMS optical fibre vibration sensor modular unit output terminal TX2/RX2 links to each other with transducing signal interface conversion circuit unit input end, and MEMS optical fibre ultrasonic sensor modular unit output terminal TX3/RX3 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.
In the utility model, described digital signal processing unit is made of TI 2000 series DSP and level transformating chip 74LVC14.Transducing signal interface conversion circuit unit is by one group of multi-disc STC single-chip microcomputer (STC89C5402) 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 utility model is: according to the technical requirement of transformer online monitoring, and design temperature parameter, vibration parameters and ultrasound 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 transformer 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 utility model running status of Fibre Optical Sensor on-line monitoring transformer, and directly value of consult volume is transmitted after digital signal processing in the mode of light signal, real time on-line monitoring transformer running status is delivered to service data in transformer station pulpit or the control room.When the partial discharge of transformer amount exceeds standard, transformer oil and winding focus excess temperature is overheated, iron core and winding deformation, when mechanical fault such as loosening takes place, 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 transformer provides believable foundation, realize the unmanned of transformer, improve transformer safe operation monitoring level.
Because the transformer online monitoring device adopts full optical fiber detection technique, detection probe and transmission line that transformer is installed all are the optical fiber material, therefore, be not electrically connected between on-Line Monitor Device and the transformer, to electrical network without any influence.Therefore, no matter from the innovation of product and the advance of technology, the transformer online monitoring device is a kind of brand-new, safe and reliable product, has goodish application prospect and market outlook.This device will play important exemplary role for the transformer monitoring technology realizes great-leap-forward development, improve transformer 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, to the significant and great promotional value of reliable and secure property of better guarantee electrical production.
The utility model combines photoelectric sense technology and Digital Signal Processing, mode by optical communication transmits the temperature of transformer, vibration and ultrasound parameter in real time, realizes the online in real time measuring ability of electric system transformer after digital signal processing.
Description of drawings
The circuit structure block diagram of Fig. 1 the utility model device;
Fig. 2 is a circuit diagram of the present utility model.
Embodiment
A kind of transformer online monitoring device based on fiber optic sensor technology comprises digital signal processing (DSP) unit 5, transducing signal interface conversion circuit unit 4, MEMS fibre optic temperature sensor modular unit 1, MEMS optical fibre vibration sensor modular unit 2, MEMS optical fibre ultrasonic sensor modular unit 3, network interface and output sound light alarming circuit unit 6.
MEMS fibre optic temperature sensor modular unit 1 output terminal TX1/RX1 links to each other with transducing signal interface conversion circuit unit input end.MEMS optical fibre vibration sensor modular unit 2 output terminal TX2/RX2 link to each other with transducing signal interface conversion circuit unit input end.MEMS optical fibre ultrasonic sensor modular unit 3 output terminal TX3/RX3 link to each other with transducing signal interface conversion circuit unit 4 input ends.Transducing signal interface conversion circuit unit 4 output terminal TX/RX/CON1 link to each other with digital signal processing unit 5 input ends.Digital signal processing unit 5 output terminal TX45/RX45/OUT1-n link to each other with the input end of network interface with output sound light alarming circuit unit 6.
Transducing signal interface conversion circuit unit 4 can have the Fibre Optical Sensor of a plurality of configuration RS232 serial ports simultaneously.The digital signal processing unit 5 configuration 10MHZ and the 100MHZ network bandwidth and transformer station pulpit or control room communicate.Network interface and output sound light alarming circuit unit 6 can provide the SMS alarm of the sound and light alarm and the mobile phone of various ways simultaneously.
The utility model combines photoelectric sense technology and Digital Signal Processing, mode by optical communication transmits the temperature of transformer, vibration and ultrasound parameter in real time, the online in real time that realizes the electric system transformer after digital signal processing detects, and can realize unmanned and warning automatically, safe and reliable.
Claims (4)
1, a kind of transformer online monitoring device based on fiber optic sensor technology is characterized in that: it comprises MEMS fibre optic temperature sensor modular unit (1), MEMS optical fibre vibration sensor modular unit (2), MEMS optical fibre ultrasonic sensor modular unit (3), transducing signal interface conversion circuit unit (4), digital signal processing unit (5), network interface and output sound light alarming circuit unit (6); MEMS fibre optic temperature sensor modular unit (1) output terminal, MEMS optical fibre vibration sensor modular unit (2) output terminal, MEMS optical fibre ultrasonic sensor modular unit (3) output terminal all are connected with transducing signal interface conversion circuit unit (4) input end, and transducing signal interface conversion circuit unit (4) output terminal is connected with digital signal processing unit (5) input end; Digital signal processing unit (5) output terminal is connected with the input end of network interface with output sound light alarming circuit unit (6).
2, the transformer online monitoring device based on fiber optic sensor technology according to claim 1 is characterized in that: digital signal processing unit (5) unit comprises TI 2000 series DSP, level transformating chip 74LVC14 or 74LVC00.
3, the transformer online monitoring device based on fiber optic sensor technology according to claim 1, it is characterized in that: transducing signal interface conversion circuit unit (4) comprises one group of STC single-chip microcomputer and serial communication chip for driving and connector.
4, the transformer online 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 (6) are made of network-driven chip, RJ45 connector, N type triode and power relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720042623 CN201107631Y (en) | 2007-11-19 | 2007-11-19 | Transformer on-line monitoring device based on fiber optic sensor technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720042623 CN201107631Y (en) | 2007-11-19 | 2007-11-19 | Transformer on-line monitoring device based on fiber optic sensor technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201107631Y true CN201107631Y (en) | 2008-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200720042623 Expired - Lifetime CN201107631Y (en) | 2007-11-19 | 2007-11-19 | Transformer on-line monitoring device based on fiber optic sensor technology |
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| CN (1) | CN201107631Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100573068C (en) * | 2008-05-16 | 2009-12-23 | 南京工业职业技术学院 | Based on the online multi-parameter monitoring devices of the transformer of fiber optic sensor technology |
| CN101789631A (en) * | 2010-03-10 | 2010-07-28 | 江苏省电力设计院 | Information transmission method for box-type or column-type transformer of distribution automation system |
| RU2492460C1 (en) * | 2012-03-07 | 2013-09-10 | Общество с ограниченной ответственностью научно-технический центр "АРГО" (ООО НТЦ "АРГО") | Method of acoustic diagnosis of technical condition of power equipment and device for its implementation |
| CN108469279A (en) * | 2018-07-04 | 2018-08-31 | 北京裕成泰科技有限公司 | A kind of vibration and temperature data acquisition device |
| US10199151B2 (en) | 2017-04-28 | 2019-02-05 | Abb Schweiz Ag | Transformer system and system for measuring dielectric fluid level in a transformer tank |
| CN110070981A (en) * | 2019-05-15 | 2019-07-30 | 华北电力大学（保定） | A kind of optical fiber transformer |
| US10748702B2 (en) | 2017-04-28 | 2020-08-18 | Abb Power Grids Switzerland Ag | Transformer system and system for measuring pressure in a transformer tank |
-
2007
- 2007-11-19 CN CN 200720042623 patent/CN201107631Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100573068C (en) * | 2008-05-16 | 2009-12-23 | 南京工业职业技术学院 | Based on the online multi-parameter monitoring devices of the transformer of fiber optic sensor technology |
| CN101789631A (en) * | 2010-03-10 | 2010-07-28 | 江苏省电力设计院 | Information transmission method for box-type or column-type transformer of distribution automation system |
| RU2492460C1 (en) * | 2012-03-07 | 2013-09-10 | Общество с ограниченной ответственностью научно-технический центр "АРГО" (ООО НТЦ "АРГО") | Method of acoustic diagnosis of technical condition of power equipment and device for its implementation |
| US10199151B2 (en) | 2017-04-28 | 2019-02-05 | Abb Schweiz Ag | Transformer system and system for measuring dielectric fluid level in a transformer tank |
| US10748702B2 (en) | 2017-04-28 | 2020-08-18 | Abb Power Grids Switzerland Ag | Transformer system and system for measuring pressure in a transformer tank |
| CN108469279A (en) * | 2018-07-04 | 2018-08-31 | 北京裕成泰科技有限公司 | A kind of vibration and temperature data acquisition device |
| CN110070981A (en) * | 2019-05-15 | 2019-07-30 | 华北电力大学（保定） | A kind of optical fiber transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20071119 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |