CN103983371A - Method for measuring operating temperature of transformer lead connector based on surface acoustic waves - Google Patents
Method for measuring operating temperature of transformer lead connector based on surface acoustic waves Download PDFInfo
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- CN103983371A CN103983371A CN201410167813.XA CN201410167813A CN103983371A CN 103983371 A CN103983371 A CN 103983371A CN 201410167813 A CN201410167813 A CN 201410167813A CN 103983371 A CN103983371 A CN 103983371A
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Abstract
The invention relates to a method for measuring operating temperature of a transformer lead connector based on surface acoustic waves. The method is technically characterized by comprising the steps that an SAW temperature sensor is arranged on the transformer lead connector, and the operating temperature of the transformer lead connector is collected; the SAW temperature sensor sends temperature data of the transformer lead connector to a temperature collecting and processing device at a far end in a wireless radio frequency mode; the temperature collecting and processing device receives the temperature data, sent by the SAW temperature sensor, of the transformer lead connector in the wireless radio frequency mode; the temperature collecting and processing device analyzes and processes the received temperature data to obtain the operating temperature of the transformer lead connector. The SAW sensing technology and the wireless communication technology are adopted by the method for signal transmission and high-voltage isolation, the problems that the temperature of the transformer lead connector is measured inaccurately, and temperature parameter collecting efficiency is low are fundamentally solved, and measurement precision and measurement efficiency are improved.
Description
Technical field
The invention belongs to power transformer technical field, especially a kind of transformer lead joint running temperature measuring method based on surface acoustic wave.
Background technology
In the operational process of transformer, often there will be because the loose contact of transformer lead joint causes overheated phenomenon.If find in time to connect transformer lead conductor joint heating situation, can effectively avoid having an accident, the stable operation of support equipment.At present, the comparatively conventional method of transformer lead joint thermometric is to utilize the method for infrared thermal imaging to measure, infrared measurement of temperature method is subject to environment and the interference of electromagnetic field around, the distance of testee and the stricter requirement that takes measurement of an angle, therefore, infrared thermal imaging measuring method effect is by day poor, lower to the collecting efficiency of temperature value.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of and test accurately, efficiency is high and the transformer lead joint running temperature measuring method based on surface acoustic wave that is easy to install and use.
The present invention solves its technical matters and takes following technical scheme to realize:
A transformer lead joint running temperature measuring method based on surface acoustic wave, comprises the following steps:
Step 1, SAW temperature sensor is arranged on transformer lead joint and gathers the running temperature of transformer lead joint;
By wireless radio frequency mode, the temperature acquisition treating apparatus to far-end sends by the temperature data of transformer lead joint for step 2, SAW temperature sensor;
Step 3, temperature acquisition treating apparatus receive the temperature data of the transformer lead joint of SAW temperature sensor transmission by wireless radio frequency mode;
Step 4, temperature acquisition treating apparatus are processed the data analysis having received, and obtain transformer lead joint running temperature.
And, analyzing and processing described in step 4 comprises: data are calculated to transformer lead joint running temperature data, can show by display screen, by storer, store, data are carried out statistical study processing and made fault analysis or prediction.
And, described temperature acquisition treating apparatus comprises master controller, transceiver controller, transmit-receive switch, amplifier, detuner, radio-frequency signal generator and radio frequency signal amplifiers, this master controller is connected with transmit-receive switch by transceiver controller, and described transmit-receive switch receives the radiofrequency signal of SAW temperature sensor under the control of master controller, described radio-frequency signal generator produces radiofrequency signal and is connected respectively on radio frequency signal amplifiers and detuner, this radio frequency signal amplifiers is connected with transmit-receive switch, described transmit-receive switch exports in amplifier after the radiofrequency signal of the radiofrequency signal of SAW temperature sensor and radio frequency signal amplifiers output is processed, the radiofrequency signal that this amplifier output is amplified is to detuner, this detuner carries out being transferred to master controller after demodulation process to the radiofrequency signal of the radiofrequency signal of amplifier and radio-frequency signal generator generation, master controller shows and stores processor the temperature data receiving.
Advantage of the present invention and good effect are:
1, this measuring method adopts surface acoustic wave (SAW) sensing technology and wireless communication technique to carry out signal transmission and high pressure isolation, utilize its intrinsic insulativity and anti-electromagnetic field jamming performance, fundamentally solved transformer lead connector temperature and measured out of true, a difficult problem that temperature parameter collecting efficiency is low, improved measuring accuracy and measured efficiency.
2, this measuring method is arranged on SAW temperature sensor on transformer lead joint, partly isolates with transformer high-voltage, guarantees thermometric work safety and reliability.
3, this measuring method adopts the problem that SAW temperature sensor carries out temperature acquisition and transmission, has solved the problem that infrared thermal imaging method need to be tested in night, large duration of load application.
4, this measuring method adopts passive, wireless SAW temperature sensor and carries out data processing with far-end temperature acquisition processing terminal, and can, to the data analysis, the statistics that gather, improve robotization processing horizontal.
Accompanying drawing explanation
Fig. 1 is the circuit block diagram of measurement mechanism used herein.
Embodiment
Below in conjunction with accompanying drawing, the embodiment of the present invention is further described:
A transformer lead joint running temperature measuring method based on surface acoustic wave is to realize on measurement mechanism as shown in Figure 1.This transformer lead joint running temperature measurement comprises the SAW temperature sensor being arranged on transformer lead joint and the temperature acquisition treating apparatus that is arranged on far-end, and described SAW temperature sensor is connected with temperature acquisition treating apparatus by wireless radio frequency mode and carries out data transmission.Described temperature acquisition treating apparatus comprises master controller, transceiver controller, transmit-receive switch, amplifier, detuner, radio-frequency signal generator and radio frequency signal amplifiers, described master controller is connected with transceiver controller, this transceiver controller is connected with transmit-receive switch, and master controller is controlled transmit-receive switch by transceiver controller and carried out work and receive the temperature data that SAW temperature sensor gathers.Described radio-frequency signal generator produces radiofrequency signal and is connected with detuner with radio frequency signal amplifiers respectively, described radio frequency signal amplifiers is connected and provides radio-frequency signal source for it with transmit-receive switch, described transmit-receive switch exports in amplifier after the radiofrequency signal of the radiofrequency signal of SAW temperature sensor and radio frequency signal amplifiers output is processed, this amplifier amplifies and processes and export the radiofrequency signal after amplifying to detuner the radiofrequency signal receiving, this detuner carries out being transferred to master controller after demodulation process to the radiofrequency signal of the radiofrequency signal of amplifier and radio-frequency signal generator generation, by master controller, the temperature data receiving is shown and the processing such as storage, thereby realize the temperature measurement function to transformer lead joint.
Transformer lead joint running temperature measuring method of the present invention, comprises the following steps:
Step 1: SAW temperature sensor is arranged on transformer lead joint and gathers the running temperature of transformer lead joint;
By the temperature data of the transformer lead joint of collection, by wireless radio frequency mode, the temperature acquisition treating apparatus to far-end sends step 2:SAW temperature sensor;
Step 3: temperature acquisition treating apparatus receives the temperature data of the conductor tie point of SAW temperature sensor transmission by wireless radio frequency mode;
In this step, master controller in temperature acquisition treating apparatus is core control equipment, master controller is controlled transmit-receive switch by transceiver controller, simultaneously, transmit-receive switch exports in amplifier after the radiofrequency signal of the radiofrequency signal of SAW temperature sensor and radio frequency signal amplifiers output is processed, amplifier amplifies and processes and export the radiofrequency signal after amplifying to detuner the radiofrequency signal receiving, and detuner carries out being transferred to master controller after demodulation process to the radiofrequency signal of the radiofrequency signal of amplifier and radio-frequency signal generator generation.
Step 4, temperature acquisition treating apparatus are processed the data analysis having received, and obtain transformer lead joint running temperature.
In this step, the data that master controller sends detuner calculate transformer lead joint running temperature data, and can show by display screen, by storer, store, can also carry out statistical study processing to data, make fault analysis or prediction, guarantee that device security moves reliably.
Principle of work of the present invention: SAW temperature sensor is passive type induction mode, without battery-operated, SAW temperature sensor can arrive emission of radio frequency signals the surface of piezoelectric, then the reflection wave that is subject to temperature and has affected is gone back to electric signal again and obtains temperature data, SAW temperature sensor is transferred to temperature acquisition treating apparatus by the temperature data of collection by RF-wise, thereby has realized the temperature measurement function to transformer lead joint.The present invention adopts surface acoustic wave techniques, takes full advantage of the passive principle of work of sensor, and under unconventional running environment, (high voltage, high electric current) realizes wireless temperature data acquisition function.
It is emphasized that; embodiment of the present invention is illustrative; rather than determinate; therefore the present invention includes and be not limited to the embodiment described in embodiment; every other embodiments that drawn by those skilled in the art's technical scheme according to the present invention, belong to the scope of protection of the invention equally.
Claims (3)
1. the transformer lead joint running temperature measuring method based on surface acoustic wave, is characterized in that: it is characterized in that comprising the following steps:
Step 1, SAW temperature sensor is arranged on transformer lead joint and gathers the running temperature of transformer lead joint;
By wireless radio frequency mode, the temperature acquisition treating apparatus to far-end sends by the temperature data of transformer lead joint for step 2, SAW temperature sensor;
Step 3, temperature acquisition treating apparatus receive the temperature data of the transformer lead joint of SAW temperature sensor transmission by wireless radio frequency mode;
Step 4, temperature acquisition treating apparatus are processed the data analysis having received, and obtain transformer lead joint running temperature.
2. the transformer lead joint running temperature measuring method based on surface acoustic wave according to claim 1, it is characterized in that: the analyzing and processing described in step 4 comprises: data are calculated to transformer lead joint running temperature data, can show by display screen, by storer, store to, data are carried out statistical study processing and made fault analysis or prediction.
3. the transformer lead joint running temperature measuring method based on surface acoustic wave according to claim 1 and 2, it is characterized in that: described temperature acquisition treating apparatus comprises master controller, transceiver controller, transmit-receive switch, amplifier, detuner, radio-frequency signal generator and radio frequency signal amplifiers, this master controller is connected with transmit-receive switch by transceiver controller, and described transmit-receive switch receives the radiofrequency signal of SAW temperature sensor under the control of master controller, described radio-frequency signal generator produces radiofrequency signal and is connected respectively on radio frequency signal amplifiers and detuner, this radio frequency signal amplifiers is connected with transmit-receive switch, described transmit-receive switch exports in amplifier after the radiofrequency signal of the radiofrequency signal of SAW temperature sensor and radio frequency signal amplifiers output is processed, the radiofrequency signal that this amplifier output is amplified is to detuner, this detuner carries out being transferred to master controller after demodulation process to the radiofrequency signal of the radiofrequency signal of amplifier and radio-frequency signal generator generation, master controller shows and stores processor the temperature data receiving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410167813.XA CN103983371A (en) | 2014-04-24 | 2014-04-24 | Method for measuring operating temperature of transformer lead connector based on surface acoustic waves |
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| CN201410167813.XA CN103983371A (en) | 2014-04-24 | 2014-04-24 | Method for measuring operating temperature of transformer lead connector based on surface acoustic waves |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104296890A (en) * | 2014-10-22 | 2015-01-21 | 国家电网公司 | Passive wireless temperature detecting terminal based on sound surface wave property |
| CN105698962A (en) * | 2014-11-24 | 2016-06-22 | 国网河南省电力公司平顶山供电公司 | Teletransmission resonance-type SAW (surface acoustic wave) temperature sensing device used for high-voltage equipment |
| CN107003185A (en) * | 2014-12-09 | 2017-08-01 | 阿尔斯通技术有限公司 | The temperature survey of switchgear stations |
| CN107909762A (en) * | 2017-11-30 | 2018-04-13 | 国网福建省电力有限公司 | 500kV transformer fire protection alarm systems based on wireless and passive temperature sensor |
| WO2024028528A1 (en) * | 2022-08-02 | 2024-02-08 | Ernesto Villanueva Serrano | Electricity generator |
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| CN202393523U (en) * | 2011-12-20 | 2012-08-22 | 郑州伊海电气设备有限公司 | Substation wireless temperature measurement device based on surface acoustic wave (SAW) technology |
| CN102967387A (en) * | 2012-11-12 | 2013-03-13 | 奉化市供电局 | Temperature monitoring system of electrical device connector |
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| CN1766942A (en) * | 2004-10-27 | 2006-05-03 | 上海帝来邦电子科技有限公司 | 477-566MHZ micropower wireless remote control transmitting, receiving circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104296890A (en) * | 2014-10-22 | 2015-01-21 | 国家电网公司 | Passive wireless temperature detecting terminal based on sound surface wave property |
| CN105698962A (en) * | 2014-11-24 | 2016-06-22 | 国网河南省电力公司平顶山供电公司 | Teletransmission resonance-type SAW (surface acoustic wave) temperature sensing device used for high-voltage equipment |
| CN107003185A (en) * | 2014-12-09 | 2017-08-01 | 阿尔斯通技术有限公司 | The temperature survey of switchgear stations |
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| CN107909762A (en) * | 2017-11-30 | 2018-04-13 | 国网福建省电力有限公司 | 500kV transformer fire protection alarm systems based on wireless and passive temperature sensor |
| WO2024028528A1 (en) * | 2022-08-02 | 2024-02-08 | Ernesto Villanueva Serrano | Electricity generator |
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Address after: 300010 Tianjin city Hebei District Wujing Road No. 39 Applicant after: State Grid Corporation of China Applicant after: State Grid Tianjin Electric Power Company Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant before: State Grid Corporation of China Applicant before: State Grid Tianjin Electric Power Company |
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Application publication date: 20140813 |
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