CN104569756A - Switch cabinet partial discharge on-line monitoring system based on electronic nose sensor - Google Patents
Switch cabinet partial discharge on-line monitoring system based on electronic nose sensor Download PDFInfo
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- CN104569756A CN104569756A CN201410836558.3A CN201410836558A CN104569756A CN 104569756 A CN104569756 A CN 104569756A CN 201410836558 A CN201410836558 A CN 201410836558A CN 104569756 A CN104569756 A CN 104569756A
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Abstract
The invention discloses a switch cabinet partial discharge on-line monitoring system based on an electronic nose sensor. The monitoring system comprises an electronic nose sensor partial discharge monitor, a concentrated monitoring device and a cloud server center, wherein the electronic nose sensor partial discharge monitor is mounted on a switch cabinet; data is transmitted between the electronic nose sensor partial discharge monitor and the concentrated monitoring device in a wired or wireless way; data information is transmitted between the concentrated monitoring device and the cloud server center in a wired or wireless way. The monitoring system adopts a smell sensor to judge whether partial discharge exists inside the cabinet body or not and judge the partial discharge amount through different smells of decomposers produced by partial discharge, so as to realize the switch cabinet partial discharge on-line monitoring and guarantee the healthy and safe operation of the switch cabinet.
Description
Technical field
The present invention relates to a kind of switch cabinet partial discharge on-line monitoring system based on Electronic Nose sensor, belong to technical field of electric power.
Background technology
In recent years, the application of electric system breaker in middle cabinet is more and more wider, the electric power accident quantity that deficiency and the switch cubicle insulation characterisitic deterioration put into operation of switch cubicle field testing procedure cause rises year by year, and the safe operation of electric system in serious threat, finally affects power supply quality and power supply reliability.
According to statistics, cause in the factor of switch cubicle insulation characterisitic deterioration, the deterioration caused by shelf depreciation accounts for 85%.Therefore, how effectively to find the shelf depreciation of switch cubicle, detecting that potential insulation fault has become power monitoring department and has day by day been concerned about and problem demanding prompt solution in time, is also the focus of current associated mechanisms and scientific and technical personnel's research.
In switch cubicle insulation system, the electric field intensity at each position there are differences, the electric field intensity in certain region is once reach its breakdown field strength, this region will Discharge Phenomena, but execute between alive two conductors and do not run through whole discharge process, namely discharge and do not puncture insulation system, this phenomenon is shelf depreciation.
Shelf depreciation is a kind of pulse phenomenon, the process of shelf depreciation is except along with except the transfer of electric charge and the loss of electric energy, also electromagnetic radiation can be produced, ultrasonic, luminous, generate heat and occur new product etc., the present invention proposes a kind of switch cabinet partial discharge on-line monitoring system based on Electronic Nose and method thereof for this reason, when inside switch cabinet produces shelf depreciation, owing to producing with high pressure, high pressure can ionize switch cubicle internal gas, gas is decomposed, different by the gas odor ionized out, and the size of odor amount utilizes olfactory sensor to monitor in cabinet whether generation office to put and the degree of generation is put in office, the acquisition of Partial discharge signal is made to become simple, and surveying instrument is installed simple, be convenient to office and put on-line monitoring popularization.
Summary of the invention
Technical matters to be solved by this invention is, how adopting olfactory sensor, the different odor of the analyte of generation is put in utilization office, judges inside switch cabinet whether put and office's size high-volume by generation office, realize the on-line monitoring of switch cabinet partial discharge, to ensure the healthy and safe operation of switch cubicle.
For solving the problems of the technologies described above, the invention provides a kind of switch cabinet partial discharge on-line monitoring system based on Electronic Nose sensor, comprising Electronic Nose sensing general ability and putting monitor, Centralizing inspection device, cloud service center; The office of described Electronic Nose sensor puts monitor and is arranged on switch cubicle, and the office of Electronic Nose sensor puts between monitor and Centralizing inspection device and adopts wired or wireless mode to transmit data; Described Centralizing inspection device and cloud service center are by wired or wireless mode transfer data information, cloud service center receives and puts data from concentrated collection device office, to the data analysis received, storage, statistics, quantitation curve is put in the office of drawing, and forms all kinds of statistical report form.
Above-mentioned Electronic Nose sensing general ability puts that monitor comprises olfactory sensor, generating means, gas microcirculqtory system, microprocessor, display circuit, key circuit, memory circuit, clock circuit, power circuit, communication interface circuit are put in signal pre-processing circuit, office; The output terminal of olfactory sensor is connected with the input end of signal pre-processing circuit; The output terminal of signal pre-processing circuit is connected with microprocessor; The I/O mouth of input end and microprocessor that generating means is put in office is connected; The input end of gas microcirculqtory system is connected with the I/O mouth of microprocessor; The input end of display circuit is connected with the I/O mouth of microprocessor; Key circuit output terminal is connected with the I/O mouth of microprocessor; Memory circuit and clock circuit respectively mouth corresponding to microprocessor are connected; The output terminal of power circuit is connected with power supply of microprocessor end; Communication interface circuit input end is connected with the communication port of microprocessor.
Above-mentioned olfactory sensor comprises gas sensor array, and gas sensor array is equivalent to a large amount of smell sensor cells in Biologic Olfaction system.
Described microprocessor, is integrated with neural network algorithm and gas qualitative and quantitative analysis method;
Neural network algorithm: neural network and computer recognizing are equivalent to biological brain, in neural network algorithm, information is by the excited mode profile storage on neuron on network, information processing by between neuron simultaneously interactional dynamic process come;
Gas qualitative and quantitative analysis method: for realizing the qualitative of smell or quantitative test, the signal of Electronic Nose sensor must be carried out suitable pre-service, such as, after stress release treatment, feature extraction, signal amplification etc., pattern recognition analysis method is adopted to process it, often kind of smell all can have its characteristic response to compose, little same smell can be distinguished according to its characteristic response spectrum, the cross-sensitivity of gas sensor forming array to multiple gases also can be utilized to measure simultaneously, by suitable analytical approach, realize analysing mixed.
Above-mentioned office puts generating means and comprises oscillatory circuit, high-tension coil, booster circuit, sparking electrode; The input end of oscillatory circuit is connected with microprocessor I/O mouth, and the work of oscillatory circuit is by Microprocessor S3C44B0X; The output terminal of oscillatory circuit is connected with high-tension coil input end, and high-tension coil output terminal is connected with booster circuit input end, and booster circuit output terminal is connected with sparking electrode, whether accurate detects olfactory sensor when being mainly used in on-line monitoring.
Above-mentioned gas microcirculqtory system, comprises mini-fan, electric machine controller; Electric machine controller output terminal is connected with mini-fan, controls fan wind speed and direction, forms recirculating air; Electric machine controller input end is connected with microprocessor I/O mouth.
Above-mentioned Centralizing inspection device comprises slave computer communication interface circuit, concentrated collection microprocessor, host computer communication interface circuit, address circuit, centralized displaying circuit; Slave computer communication interface circuit input end is put monitor with Electronic Nose sensing general ability and is connected by wired or wireless; Slave computer communication interface circuit output terminal is connected with concentrated collection microprocessor; Host computer communication interface circuit input end is connected with concentrated collection microprocessor; Host computer communication interface circuit output terminal is connected by wired or wireless with cloud service center; Address circuit output terminal is connected with concentrated collection microprocessor I/O mouth; The input end of centralized displaying circuit is connected with concentrated collection microprocessor I/O mouth.
The beneficial effect that the present invention reaches:
System adopts olfactory sensor, the different odor of the analyte of generation is put in utilization office, judge inside switch cabinet whether put and office's size high-volume by generation office, realize the on-line monitoring of switch cabinet partial discharge, to ensure the healthy and safe operation of switch cubicle, there is self-calibration simultaneously and gas microcirculqtory system is convenient to Measurement accuracy.
Accompanying drawing explanation
Fig. 1 is system architecture schematic diagram of the present invention.
Fig. 2 is the structural drawing that Electronic Nose sensing general ability puts monitor.
Fig. 3 is the structural drawing of Centralizing inspection device.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
As shown in Figure 1, the invention provides a kind of switch cabinet partial discharge on-line monitoring system based on Electronic Nose sensor, comprise Electronic Nose sensing general ability and put monitor, Centralizing inspection device, cloud service center; The office of described Electronic Nose sensor puts monitor and is arranged on switch cubicle, and the office of Electronic Nose sensor puts between monitor and Centralizing inspection device and adopts wired or wireless mode to transmit data; Described Centralizing inspection device and cloud service center are by wired or wireless mode transfer data information, cloud service center receives and puts data from concentrated collection device office, to the data analysis received, storage, statistics, quantitation curve is put in the office of drawing, and forms all kinds of statistical report form.
As shown in Figure 2, above-mentioned Electronic Nose sensing general ability puts that monitor comprises olfactory sensor, generating means, gas microcirculqtory system, microprocessor, display circuit, key circuit, memory circuit, clock circuit, power circuit, communication interface circuit are put in signal pre-processing circuit, office; The output terminal of olfactory sensor is connected with the input end of signal pre-processing circuit; The output terminal of signal pre-processing circuit is connected with microprocessor; The I/O mouth of input end and microprocessor that generating means is put in office is connected; The input end of gas microcirculqtory system is connected with the I/O mouth of microprocessor; The input end of display circuit is connected with the I/O mouth of microprocessor; Key circuit output terminal is connected with the I/O mouth of microprocessor; Memory circuit and clock circuit respectively mouth corresponding to microprocessor are connected; The output terminal of power circuit is connected with power supply of microprocessor end; Communication interface circuit input end is connected with the communication port of microprocessor.
Above-mentioned olfactory sensor comprises gas sensor array, and gas sensor array is equivalent to a large amount of smell sensor cells in Biologic Olfaction system.
Described microprocessor, is integrated with neural network algorithm and gas qualitative and quantitative analysis method;
Neural network algorithm: neural network and computer recognizing are equivalent to biological brain, in neural network algorithm, information is by the excited mode profile storage on neuron on network, information processing by between neuron simultaneously interactional dynamic process come;
Gas qualitative and quantitative analysis method: for realizing the qualitative of smell or quantitative test, the signal of Electronic Nose sensor must be carried out suitable pre-service, such as, after stress release treatment, feature extraction, signal amplification etc., pattern recognition analysis method is adopted to process it, often kind of smell all can have its characteristic response to compose, little same smell can be distinguished according to its characteristic response spectrum, the cross-sensitivity of gas sensor forming array to multiple gases also can be utilized to measure simultaneously, by suitable analytical approach, realize analysing mixed.
Above-mentioned office puts generating means and comprises oscillatory circuit, high-tension coil, booster circuit, sparking electrode; The input end of oscillatory circuit is connected with microprocessor I/O mouth, and the work of oscillatory circuit is by Microprocessor S3C44B0X; The output terminal of oscillatory circuit is connected with high-tension coil input end, and high-tension coil output terminal is connected with booster circuit input end, and booster circuit output terminal is connected with sparking electrode, whether accurate detects olfactory sensor when being mainly used in on-line monitoring.
Above-mentioned gas microcirculqtory system, comprises mini-fan, electric machine controller; Electric machine controller output terminal is connected with mini-fan, controls fan wind speed and direction, forms recirculating air; Electric machine controller input end is connected with microprocessor I/O mouth.
As shown in Figure 3, above-mentioned Centralizing inspection device comprises slave computer communication interface circuit, concentrated collection microprocessor, host computer communication interface circuit, address circuit, centralized displaying circuit; Slave computer communication interface circuit input end is put monitor with Electronic Nose sensing general ability and is connected by wired or wireless; Slave computer communication interface circuit output terminal is connected with concentrated collection microprocessor; Host computer communication interface circuit input end is connected with concentrated collection microprocessor; Host computer communication interface circuit output terminal is connected by wired or wireless with cloud service center; Address circuit output terminal is connected with concentrated collection microprocessor I/O mouth; The input end of centralized displaying circuit is connected with concentrated collection microprocessor I/O mouth.
When inside switch cabinet produces shelf depreciation, owing to producing with high pressure, high pressure can ionize switch cubicle internal gas, gas is decomposed, different by the gas odor that ionizes out, and the size of odor amount utilizes olfactory sensor to monitor in cabinet whether generation office to put and the degree of generation is put in office.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and distortion, these improve and distortion also should be considered as protection scope of the present invention.
Claims (7)
1., based on a switch cabinet partial discharge on-line monitoring system for Electronic Nose sensor, it is characterized in that comprising Electronic Nose sensing general ability puts monitor, Centralizing inspection device, cloud service center; The office of described Electronic Nose sensor puts monitor and is arranged on switch cubicle, and the office of Electronic Nose sensor puts between monitor and Centralizing inspection device and adopts wired or wireless mode to transmit data; Described Centralizing inspection device and cloud service center are by wired or wireless mode transfer data information, cloud service center receives and puts data from concentrated collection device office, to the data analysis received, storage, statistics, quantitation curve is put in the office of drawing, and forms all kinds of statistical report form.
2. the switch cabinet partial discharge on-line monitoring system based on Electronic Nose sensor according to claim 1, is characterized in that: described Electronic Nose sensing general ability puts that monitor comprises olfactory sensor, generating means, gas microcirculqtory system, microprocessor, display circuit, key circuit, memory circuit, clock circuit, power circuit, communication interface circuit are put in signal pre-processing circuit, office; The output terminal of olfactory sensor is connected with the input end of signal pre-processing circuit; The output terminal of signal pre-processing circuit is connected with microprocessor; The I/O mouth of input end and microprocessor that generating means is put in office is connected; The input end of gas microcirculqtory system is connected with the I/O mouth of microprocessor; The input end of display circuit is connected with the I/O mouth of microprocessor; Key circuit output terminal is connected with the I/O mouth of microprocessor; Memory circuit and clock circuit respectively mouth corresponding to microprocessor are connected; The output terminal of power circuit is connected with power supply of microprocessor end; Communication interface circuit input end is connected with the communication port of microprocessor.
3. the switch cabinet partial discharge on-line monitoring system based on Electronic Nose sensor according to claim 2, it is characterized in that: described olfactory sensor comprises gas sensor array, gas sensor array is equivalent to a large amount of smell sensor cells in Biologic Olfaction system.
4. the switch cabinet partial discharge on-line monitoring system based on Electronic Nose sensor according to claim 2, is characterized in that: described microprocessor, is integrated with neural network algorithm and gas qualitative and quantitative analysis method;
Neural network algorithm is as follows:
Neural network and computer recognizing are equivalent to biological brain; In described neural network algorithm, information is by the excited mode profile storage on neuron on network, information processing by between neuron simultaneously interactional dynamic process come;
Gas qualitative and quantitative analysis method is as follows:
For realizing the qualitative of smell or quantitative test, the signal of Electronic Nose sensor is carried out suitable pre-service, pattern recognition analysis method is adopted to process it, often kind of smell all can have its characteristic response to compose, little same smell can be distinguished according to its characteristic response spectrum, utilize the cross-sensitivity of gas sensor forming array to multiple gases to measure, by suitable analytical approach, realize analysing mixed.
5. the switch cabinet partial discharge on-line monitoring system based on Electronic Nose sensor according to claim 2, is characterized in that: described office puts generating means and comprises oscillatory circuit, high-tension coil, booster circuit, sparking electrode; The input end of oscillatory circuit is connected with microprocessor I/O mouth, and the work of oscillatory circuit is by Microprocessor S3C44B0X; The output terminal of oscillatory circuit is connected with high-tension coil input end, and high-tension coil output terminal is connected with booster circuit input end, and booster circuit output terminal is connected with sparking electrode, whether accurate detects olfactory sensor when being mainly used in on-line monitoring.
6. the switch cabinet partial discharge on-line monitoring system based on Electronic Nose sensor according to claim 2, is characterized in that: described gas microcirculqtory system, comprises mini-fan, electric machine controller; Electric machine controller output terminal is connected with mini-fan, controls fan wind speed and direction, forms recirculating air; Electric machine controller input end is connected with microprocessor I/O mouth.
7. the switch cabinet partial discharge on-line monitoring system based on Electronic Nose sensor according to claim 1, is characterized in that: described Centralizing inspection device comprises slave computer communication interface circuit, concentrated collection microprocessor, host computer communication interface circuit, address circuit, centralized displaying circuit; Slave computer communication interface circuit input end is put monitor with Electronic Nose sensing general ability and is connected by wired or wireless; Slave computer communication interface circuit output terminal is connected with concentrated collection microprocessor; Host computer communication interface circuit input end is connected with concentrated collection microprocessor; Host computer communication interface circuit output terminal is connected by wired or wireless with cloud service center; Address circuit output terminal is connected with concentrated collection microprocessor I/O mouth; The input end of centralized displaying circuit is connected with concentrated collection microprocessor I/O mouth.
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| CN201410836558.3A CN104569756B (en) | 2014-12-29 | 2014-12-29 | Switch cabinet partial discharge on-line monitoring system based on electronic nose sensor |
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Cited By (4)
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| CN104820072A (en) * | 2015-04-30 | 2015-08-05 | 重庆大学 | Electronic nose air quality monitoring system and method based on cloud computing |
| CN105606666A (en) * | 2015-09-08 | 2016-05-25 | 海南电力技术研究院 | Gas sensor based portable switch cabinet partial discharge detection device and method |
| CN106352917A (en) * | 2016-08-16 | 2017-01-25 | 国网天津市电力公司 | Integrated on-line monitoring and analyzing platform for switch cabinet |
| CN109085475A (en) * | 2018-09-14 | 2018-12-25 | 北京鼎诚恒安科技发展有限责任公司 | The detection method and device of high-tension switch cabinet shelf depreciation |
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