CN105137308A - Electric power equipment insulation integrated online monitoring system - Google Patents
Electric power equipment insulation integrated online monitoring system Download PDFInfo
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- CN105137308A CN105137308A CN201510602382.XA CN201510602382A CN105137308A CN 105137308 A CN105137308 A CN 105137308A CN 201510602382 A CN201510602382 A CN 201510602382A CN 105137308 A CN105137308 A CN 105137308A
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Abstract
An electric power equipment insulation integrated online monitoring system disclosed by the present invention comprises an integrated monitoring system main control computer and an integrated monitoring system front-end processor. The integrated monitoring system main control computer is connected with the integrated monitoring system front-end processor, a signal conditioning unit and a PXI measurement and control unit are arranged in the integrated monitoring system front-end processor, and the signal conditioning unit is connected with the PXI measurement and control unit. According to the present invention, when the insulation parameters, such as the local discharging, etc., of the electric power equipment, such as a transformer, a GIS, a power cable, etc., are monitored in an on-line manner, a higher sampling rate is needed to acquire the insulation state signals, a high-speed data acquisition card PXI25112 and a high-speed oscilloscope TDS2014 are used to acquire the simulation signals, the high frequency signals are transmitted to the signal conditioning unit via the cables, the equipment are in one-to-one correspondence with the signal conditioning board cards, and finally a PXI26508 digital IO card of the PXI measurement and control unit matches a software to realize the board card type identification and the switching of the circular testing equipment, thereby realizing the situation that the detection equipment can be used once being inserted.
Description
Technical field
The present invention relates to a kind of electric power equipment inspect system, be specifically related to the comprehensive on-line monitoring system of a kind of Electric Power Equipment Insulation, belong to technical field of electric power.
Background technology
Electric device maintenance just keeps in repair to state-detection, prospective maintenance transition after periodic preventative detection, fault.State-detection, prospective maintenance be based upon on the basis of monitoring continuously large scale electrical power unit, and interval was analyzed its trend according to the history service mode of equipment and continuous Monitoring Data and determined servicing time.The SCM Based pick-up unit of the development experience of electric device maintenance technology to based on DSP technology pick-up unit, arrive detection system stage based on computer technology again, just develop towards the comprehensive detection system based on New Bus technology and network technology at present.Some new detection techniques are as rapid in optical fiber technology, Signal acquiring and processing technology, PXI measurement and control bus technology etc. to be applied in the detection of power equipment.Technology and the product of separate unit Electric Power Equipment Insulation on-line monitoring have a lot of research and application, but power equipment on-line checkingi and diagnostic device are no longer confined to specialize study single object, single model, but from the Detection and diagnosis stage of single device, individual event parameter to many equipment, the integrated future development of height of multi-parameter comprehensive Detection and diagnosis, and comprehensive on-line checkingi and the diagnosis of power equipment in transformer station can be realized in the network platform, thus provide higher technology platform for Automation of Electric Systems.PXI bus has developed and is suitable for testing, measuring and the machinery of data acquisition applications, electric and software specifications, defines a kind of virtual instrument test platform of high performance-price ratio.Therefore, the herein comprehensive on-line monitoring system of power equipment electric insulation based on PXI bus development.
Summary of the invention
In order to solve above-mentioned Problems existing, the invention provides the comprehensive on-line monitoring system of a kind of Electric Power Equipment Insulation.
Technical scheme of the present invention is: the comprehensive on-line monitoring system of a kind of Electric Power Equipment Insulation, its composition comprises: comprehensive monitor system main control computer, system ensemble monitoring system front end processor, described comprehensive monitor system main control computer is connected with described system ensemble monitoring system front end processor, comprise signal condition unit and PXI measurement and control unit in described comprehensive monitor system front end processor, described signal condition unit is connected with described PXI measurement and control unit.
Preferably, the comprehensive on-line monitoring system of described Electric Power Equipment Insulation, described PXI measurement and control unit comprises Shi Boka, digital I/O card, multi-serial-port card, oscillograph, described digital I/O card is connected with described comprehensive monitor system main control computer, and described taxi ripple card is connected with described signal condition unit with described oscillograph.
Preferably, the comprehensive on-line monitoring system of described Electric Power Equipment Insulation, described signal condition unit is connected with generator by sensors A, described signal condition unit is connected by sensor B and GIS, described signal condition unit is connected with power transformer by sensor C, described signal condition unit is connected with power cable by sensor E, and described power transformer is connected with system ensemble monitoring system front end processor by sensor D.
Preferably, the comprehensive on-line monitoring system of described Electric Power Equipment Insulation, described comprehensive monitor system front end processor is connected with preposition intelligent node, and described multi-serial-port card is connected with sensor F, sensor H, sensor J, sensor K by preposition intelligent node.
Preferably, the comprehensive on-line monitoring system of described Electric Power Equipment Insulation, described sensor F is connected with power cable, and described sensor H is connected with primary cut-out, and described sensor J is connected with lightning arrester, and described sensor K is connected with power capacitor.
Preferably, the comprehensive on-line monitoring system of described Electric Power Equipment Insulation, described taxi ripple card-type number is PXI-5112, and described digital I/O card model is PXI6508, and described multi-serial-port card model is PXI8440, and described oscillograph model is TEKTDS2014.
Compared with prior art, effect of the present invention and effect are: the present invention is to transformer, when the insulation such as the shelf depreciation of the power equipment such as GIS and power cable parameter carries out on-line monitoring, higher sampling rate is needed to gather state of insulation signal, high-speed data acquisition card PXI25112 and high-speed oscilloscope TDS2014 is adopted to gather simulating signal, high-frequency signal by cable transmission to signal condition unit, equipment and signal condition board one_to_one corresponding, finally coordinate software simulating board type identification by the PXI26508 digital I/O card of PXI measurement and control unit and follow the switching of inspection equipment, and then realize the plug and play of checkout equipment.
Accompanying drawing explanation
Fig. 1 is system of the present invention composition schematic diagram;
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail:
As shown in Figure 1, the comprehensive on-line monitoring system of a kind of Electric Power Equipment Insulation, its composition comprises: comprehensive monitor system main control computer 20, system ensemble monitoring system front end processor 22, comprehensive monitor system main control computer 20 is connected with system ensemble monitoring system front end processor 22, signal condition unit 15 and PXI measurement and control unit 16 is comprised in comprehensive monitor system front end processor 22, signal condition unit 15 is connected with PXI measurement and control unit 16, PXI measurement and control unit 16 comprises scholar's ripple card 17, digital I/O card 18, multi-serial-port card 19, oscillograph 20, digital I/O card 18 is connected with comprehensive monitor system main control computer 20, Shi Boka 17 with oscillograph 20 be connected with signal condition unit 15, signal condition unit 15 is connected with generator 13 by sensors A 14, signal condition unit 15 is connected by sensor B12 and GIS11, signal condition unit 15 is connected with power transformer 9 by sensor C10, signal condition unit 15 is connected with power cable 7 by sensor E6, power transformer 9 is connected with system ensemble monitoring system front end processor 22 by sensor D8, comprehensive monitor system front end processor 22 is connected with preposition intelligent node 23, multi-serial-port card 19 is by preposition intelligent node 23 and sensor F25, sensor H4, sensor J2, sensor K24 connects, sensor F25 is connected with power cable 7, sensor H4 is connected with primary cut-out 5, sensor J2 is connected with lightning arrester 3, sensor K24 is connected with power capacitor 1, Shi Boka 17 model is PXI-5112, digital I/O card 18 model is PXI6508, multi-serial-port card 19 model is PXI8440, oscillograph 21 model is TEKTDS2014.
Principle of work: when the comprehensive on-line monitoring system of power equipment electric insulation carries out on-line monitoring to insulation parameters such as the shelf depreciations of the power equipments such as transformer, GIS11 and power cable 9, need higher sampling rate to gather state of insulation signal, therefore these equipment can adopt high-speed data acquisition card PXI25112 and high-speed oscilloscope 21TDS2014 to gather simulating signal.High-frequency signal by cable transmission to signal condition unit 15, equipment and signal condition board one_to_one corresponding, finally coordinate software simulating board type identification by the PXI26508 digital I/O card 18 of PXI measurement and control unit and follow the switching of inspection equipment, and then realizing the plug and play of checkout equipment.By the online prison to insulating resistance of cable and other power device leakage current values, survey, because the collection of the direct current signal to sensors coupled, AC power frequency signal or non-electric charge quantity signalling does not need comparatively high sampling rate, therefore these equipment can adopt embedded preposition intelligent node collection.Embedded intelligent unit carries out A/D conversion on the spot at the scene and carries out data processing, finally by the PXI28440 multi-serial-port card 19 in RS2485 bus access PXI observing and controlling cabinet, and realizes data upload by serial communication.The mode that electrical equipment online supervision can adopt classification integrated, according to actual conditions, can will the power equipment of on-line monitoring be needed to be multiple unit (generally all power equipments in an outlet being divided into a unit) by Region dividing, the power equipment of each unit can pass through a PXI front-end processor system, is integrated by each hardware system carrying out insulation state monitoring.The embedded controller of PXI, can by means of switch due to ethernet nic interface.By all PXI system composition ethernet local area networks, form the comprehensive on-line monitoring system network of the multiple insulation parameter of multiple power equipment, complete the system integrating in on-line monitoring system environment integrated.
More than by the introduction to embodiment, ultimate principle of the present invention and design are set forth.But the present invention is never limited to above-mentioned embodiment, every similar changes and improvements done based on technical scheme of the present invention, these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (6)
1. the comprehensive on-line monitoring system of Electric Power Equipment Insulation, its composition comprises: comprehensive monitor system main control computer (20), system ensemble monitoring system front end processor (22), it is characterized in that: described comprehensive monitor system main control computer (20) is connected with described system ensemble monitoring system front end processor (22), comprise signal condition unit (15) and PXI measurement and control unit (16) in described comprehensive monitor system front end processor (22), described signal condition unit (15) is connected with described PXI measurement and control unit (16).
2. the comprehensive on-line monitoring system of Electric Power Equipment Insulation according to claim 1, it is characterized in that: described PXI measurement and control unit (16) comprises Shi Boka (17), digital I/O card (18), multi-serial-port card (19), oscillograph (20), described digital I/O card (18) is connected with described comprehensive monitor system main control computer (20), and described taxi ripple card (17) is connected with described signal condition unit (15) with described oscillograph (20).
3. the comprehensive on-line monitoring system of Electric Power Equipment Insulation according to claim 1, it is characterized in that: described signal condition unit (15) is connected with generator (13) by sensors A (14), described signal condition unit (15) is connected with GIS (11) by sensor B (12), described signal condition unit (15) is connected with power transformer (9) by sensor C (10), described signal condition unit (15) is connected with power cable (7) by sensor E (6), described power transformer (9) is connected with system ensemble monitoring system front end processor (22) by sensor D (8).
4. the comprehensive on-line monitoring system of Electric Power Equipment Insulation according to claim 1 and 2, it is characterized in that: described comprehensive monitor system front end processor (22) is connected with preposition intelligent node (23), described multi-serial-port card (19) is connected with sensor F (25), sensor H (4), sensor J (2), sensor K (24) by preposition intelligent node (23).
5. the comprehensive on-line monitoring system of Electric Power Equipment Insulation according to claim 4, it is characterized in that: described sensor F (25) is connected with power cable (7), described sensor H (4) is connected with primary cut-out (5), described sensor J (2) is connected with lightning arrester (3), and described sensor K (24) is connected with power capacitor (1).
6. the comprehensive on-line monitoring system of Electric Power Equipment Insulation according to claim 2, it is characterized in that: described taxi ripple card (17) model is PXI-5112, described digital I/O card (18) model is PXI6508, described multi-serial-port card (19) model is PXI8440, and described oscillograph (21) model is TEKTDS2014.
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| CN201510602382.XA CN105137308A (en) | 2015-09-22 | 2015-09-22 | Electric power equipment insulation integrated online monitoring system |
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| CN201510602382.XA CN105137308A (en) | 2015-09-22 | 2015-09-22 | Electric power equipment insulation integrated online monitoring system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112098097A (en) * | 2020-08-20 | 2020-12-18 | 西安航天动力试验技术研究所 | High-reliability measuring system for simultaneously acquiring multiple types of parameters |
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| CN201845069U (en) * | 2010-11-10 | 2011-05-25 | 西南交通大学 | On-line detection device of insulation stage of capacitive equipment of distributed transformer substation |
| CN202794387U (en) * | 2012-08-21 | 2013-03-13 | 南京启能电气技术有限公司 | Online monitoring system for capacitive equipment and lightning arrester |
| CN103472375A (en) * | 2013-08-28 | 2013-12-25 | 国网浙江省电力公司嘉兴供电公司 | Insulated comprehensive on-line monitoring system of power equipment for transformer station |
| WO2014135015A1 (en) * | 2013-03-07 | 2014-09-12 | 国网安徽省电力公司芜湖供电公司 | Network for online monitoring of power transformer at intelligent substation |
| CN104181427A (en) * | 2014-08-29 | 2014-12-03 | 广州电力设计院 | Online monitoring system of intelligent substation transformer |
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2015
- 2015-09-22 CN CN201510602382.XA patent/CN105137308A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201845069U (en) * | 2010-11-10 | 2011-05-25 | 西南交通大学 | On-line detection device of insulation stage of capacitive equipment of distributed transformer substation |
| CN202794387U (en) * | 2012-08-21 | 2013-03-13 | 南京启能电气技术有限公司 | Online monitoring system for capacitive equipment and lightning arrester |
| WO2014135015A1 (en) * | 2013-03-07 | 2014-09-12 | 国网安徽省电力公司芜湖供电公司 | Network for online monitoring of power transformer at intelligent substation |
| CN103472375A (en) * | 2013-08-28 | 2013-12-25 | 国网浙江省电力公司嘉兴供电公司 | Insulated comprehensive on-line monitoring system of power equipment for transformer station |
| CN104181427A (en) * | 2014-08-29 | 2014-12-03 | 广州电力设计院 | Online monitoring system of intelligent substation transformer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112098097A (en) * | 2020-08-20 | 2020-12-18 | 西安航天动力试验技术研究所 | High-reliability measuring system for simultaneously acquiring multiple types of parameters |
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Application publication date: 20151209 |