CN105703485A - Array type online monitoring system for protective pressure plates of substation and application method of array type online monitoring system for protective pressure plates of substation - Google Patents
Array type online monitoring system for protective pressure plates of substation and application method of array type online monitoring system for protective pressure plates of substation Download PDFInfo
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- CN105703485A CN105703485A CN201610200658.6A CN201610200658A CN105703485A CN 105703485 A CN105703485 A CN 105703485A CN 201610200658 A CN201610200658 A CN 201610200658A CN 105703485 A CN105703485 A CN 105703485A
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- H02J13/0017—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00019—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using optical means
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- H02J13/0075—
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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Abstract
The invention discloses an array type online monitoring system for protective pressure plates of a substation. The system comprises a state monitoring mechanism, an error compensating mechanism, a data collection mechanism and an information processing mechanism which are successively connected; the state monitoring mechanism comprises a broadband light source and a plurality of optical fiber grating sensors; the optical fiber grating sensors are successively connected from end to end through an optical fiber line; the optical fiber grating sensors are arrayed on a protection screen corresponding to the protection pressure plates; the optical fiber grating sensors are arranged at one sides of the protection pressure plates; and when the connecting plates of the protection pressure plates are withdrawn, the connecting plates can be rotated to contact with the optical fiber grating sensors. According to the system provided by the invention, the throwing and withdrawing of the pressure protection plates are monitored on line in real time; and through adoption of the new type monitoring technique, the influence of an electromagnetic environment on monitoring accuracy is avoided.
Description
Technical field
The present invention relates to substation equipment Condition Monitoring Technology field, be specifically related to a kind of transformer substation protection pressure plate arranged type on-line monitoring system and using method thereof。
Background technology
Protection pressing plate is also named protection in flakes, is bridge and the tie of protection device contact external wiring, and can the function and the action outlet that be related to protection normally play a role。Protection pressing plate obtains most commonly used application because forming the visuality of junction point and cut-off point after its operation in domestic protection device。At present, being fitted with large number of protection pressing plate on the power plant put into operation, protection screen of transformer substation, owing to having cut-off point intuitively, operations staff may determine that protective relaying device circuit state in which, provides great convenience for maintenance, operation。According to the difference accessing protection device secondary circuit position, protection pressing plate can be divided into defencive function pressing plate and the big class of output clamping two。Defencive function pressing plate achieves some function of protection device, such as the throwing, retreating function of main protection, distance protection, zero-sequenceprotection etc., can be used for changing the control model of protection。Output clamping determines the result of protection act, different according to the object of protection act outlet effect, can be divided into tripping operation output clamping and start pressing plate。Tripping operation output clamping directly acts on this switch or other switches jumped by connection, if tripping operation output clamping is thrown in leakage, even if protection device correct operation, also cannot tripping switch to excise fault；Start pressing plate as other protection open into use。
The safe operation of relay protection system, is the most important safety guarantee of power system, and the correct operation of protection pressing plate is particularly important。Along with the development of the automation of transformation substations, dispatching automation technology, schedule system information, intelligent level have reached significantly high degree, but, protect the managerial informationization of pressing plate, intelligent level then relatively low。Protection the pressing plate running status correctness technical staff that places one's entire reliance upon patrol and examine。When carrying out the conventional electric power work flows such as stoppage in transit maintenance, device to test under the premise of known protection pressing plate state; for ensuring safety; it is still necessary to send technical staff that corresponding protection pressing plate is operated and the verification of state; especially for transformer station or the unattended operation transformer station of some remotenesses, this process will consume substantial amounts of human and material resources and financial resources。
Owing to the installation site protecting pressing plate is generally relatively low and quantity is more, arrangement comparatively dense; and protect the throwing of pressing plate to move back must by manual operation; check on by the responsibility of operations staff, actual techniques level completely; so being easy to occur patrolling and examining slip and operation mistake; after special Unattended substation, protection pressing plate mistake is more difficult to timely discovery。In actual motion, moving back improper because protection pressing plate is thrown, cause protection system the phenomenon of correct operation not happen occasionally, protection pressing plate mistake once occur, then can cause protective relaying maloperation or tripping, and its consequence is hardly imaginable。In sum, for the protection pressing plate in power plant, transformer station that put into operation at present, two large problems is had to need solution badly: (1) protection input of pressing plate, exit status cannot realize automatically identifying and remotely monitoring；(2) cannot effectively prevent the miscarrying of protection pressing plate, move back and loose contact by mistake。In order to solve the problems referred to above, mostly from photoelectric sense technology, has there are some achievements in domestic enterprise。
The invention that application number is 201410275594.7 provides one protection pressing plate status detection terminal and the system of supervision thereof, this protection pressing plate status monitoring terminal is being thrown for protection pressing plate, move back state two kinds different, it is respectively adopted different position upper covers, not only achieve each protection pressing plate is thrown state of moving back monitoring and signal output, and also the effect that the throwing state of moving back to protection pressing plate that can play is protected by, this protection pressing plate status monitoring terminal can be directly installed on the insulating base of already installed protection pressing plate simultaneously, need not to the position of existing protection pressing plate, structure is modified or more changes the outfit, install simple, convenient；In this protection pressing plate condition monitoring system; by pressing plate signal concentrated collection device, each protection pressing plate status monitoring terminal is carried out information gathering and transmits to monitoring computer; patrol officer just can pass through to check that state is moved back in throwing of each the monitored protection pressing plate monitoring Computer display succinctly, intuitively, consequently facilitating understanding in real time and operating each pressing plate state。This invention is capable of the monitoring to protection pressing plate state, however it is necessary that and original device is improved, and workload is relatively big, and construction is slowly。
Application number be 201410591762.3 invention provide a kind of status monitoring terminal structure for electic protection pressing plate, it can be conveniently mounted to the side of insulating base of electic protection pressing plate, and the duty of status monitoring terminal can be set by the holding operation handle adjustment sliding bar position that slides up and down in guide chute, install and use easy to operate, and fit structure makes status monitoring terminal works stability be greatly improved between its guide chute and sliding bar, additionally optimize design by many-sided, the duty allowing status monitoring terminal is moved back state and is kept corresponding better with the throwing of electic protection pressing plate, avoid the supervision computer causing far-end that the throwing of electic protection pressing plate is moved back status monitoring information to make a mistake, check that fault and duty arrange mistake and provide convenience for operator。This invention is also required to original device is improved, although effect is fine, but it is bigger to install transformation labor intensive financial resources。
The utility model that application number is 200920183105.X discloses a kind of transformer substation protection pressure plate status monitoring system, it includes a plurality of pressing plate condition intelligent sensing point, plurality of distributed formula administrative unit, a plurality of communication servers, one transcriber, one network switch and a monitoring industrial computer, described each distributed management unit is connected with at least one pressing plate condition intelligent sensing point, after described each communication server is connected with at least one distributed management unit, it is then connected to the described network switch, the described network switch then connects monitoring industrial computer and transcriber respectively。This utility model can realize transformer station's pressing plate state on-line real time monitoring, also can report to the police simultaneously, reminds operations staff to correct clamp operation in time, reduces potential safety hazard, improve automation of transformation substations level。Original protection pressing plate need not be transformed by this utility model, but protection pressing plate is under an electric power environmental, and electromagnetic environment is complicated, and the transmission of information relies on signal of telecommunication transmission, and accuracy is poor, affected by environment bigger。
Summary of the invention
Problem to be solved by this invention is to provide a kind of transformer substation protection pressure plate arranged type on-line monitoring system and using method thereof; can to the throwing setback row on-line real time monitoring of protection pressing plate; and adopt novel monitoring technology, it is to avoid the electromagnetic environment impact on monitoring accuracy。
For solving above-mentioned technical problem, the technical solution used in the present invention is:
A kind of transformer substation protection pressure plate arranged type on-line monitoring system, including the status monitoring mechanism being sequentially connected with, error compensation mechanism, data acquisition mechanism and information processing mechanism；
Described status monitoring mechanism includes wideband light source and several fiber-optic grating sensors being sequentially connected by fibre circuit head and the tail; described fiber-optic grating sensor correspondence protection pressing plate is arranged on sealer; described fiber-optic grating sensor is arranged on the side of described protection pressing plate; when the connecting plate of described protection pressing plate exits, described connecting plate can rotate to and contacts with described fiber-optic grating sensor；
Described error compensation mechanism is for compensating the error of status monitoring mechanism, it is to avoid monitoring result is impacted by temperature；
Described data acquisition mechanism receives from the optical signal of error compensation mechanism, and converts optical signals to the signal of telecommunication and be delivered to information processing mechanism；
The signal of telecommunication that data collecting mechanism is sended over by described information processing mechanism processes; judge whether described fiber-optic grating sensor deforms upon; judge that state of moving back thrown by the protection pressing plate of correspondence, and the status information of protection pressing plate is carried out on-the-spot display or sends to remote monitoring main frame。
Further; described fiber-optic grating sensor is arranged on the side of described protection pressing plate by the first support; described first support is arranged on described sealer; described fiber-optic grating sensor two ends arrange elastic base, and described fiber-optic grating sensor is arranged on described first support by elastic base。
Further, the side of described fiber-optic grating sensor arranges fixed magnet by the second support on described sealer, and described connecting plate arranges insulation snap ring, and on described insulation snap ring, corresponding described fixed magnet arranges moving magnet。
Further, described fixed magnet is arranged on described second support by spring seat, and described spring seat includes extension spring。
Further, described error compensation mechanism includes fiber-optical grating temperature sensor。
Further, described data acquisition mechanism includes fiber grating Network Analyzer。
Further, described information processing mechanism includes controller, the display being connected with described controller and communication module, and described controller is connected with described remote monitoring main frame by described communication module。
The using method of a kind of transformer substation protection pressure plate arranged type on-line monitoring system, comprises the steps:
1) opening wideband light source, information processing mechanism receives data acquisition mechanism and sends the monitoring information of the fiber-optic grating sensor come, system starts；
2) when certain protection pressing plate puts into; the connecting plate of this protection pressing plate does not contact with corresponding fiber-optic grating sensor; do not cause the deformation of fiber-optic grating sensor; grating on this fiber-optic grating sensor does not produce deformation yet; data acquisition mechanism monitors wavelength and does not change, it is judged that this protection pressing plate is not in exit status；
3) when certain protection pressing plate exits; the connecting plate of this protection pressing plate contacts with corresponding fiber-optic grating sensor and causes fiber-optic grating sensor deformation; so that the grating on fiber-optic grating sensor produces deformation; data acquisition mechanism monitors wavelength and changes, it is judged that this protection pressing plate is in exit status；
4) throwing of each protection pressing plate calculated is moved back state and is displayed at the scene by information processing mechanism, and throwing is moved back status information sends to remote monitoring main frame and realize remote online monitoring。
The invention provides a kind of transformer substation protection pressure plate arranged type on-line monitoring system; its principle is to be realized by fiber-optic grating sensor; the connecting plate whether being carried out monitoring and protecting pressing plate by the deformation of fiber-optic grating sensor is in the position putting into or exiting, it is achieved the job information of protection pressing plate is monitored。Protection pressing plate on sealer is matrix arrangement mostly; fiber-optic grating sensor correspondence protection pressing plate is also that matrix arrangement is on sealer; wideband light source is connected by fibre circuit and first fiber-optic grating sensor; optical signal is provided to whole monitoring system; light grating sensor is together in series by fibre circuit successively, and is connected with error compensation mechanism by last fiber-optic grating sensor。When connecting plate exits, rotation causes the deformation of sensor to touching fiber-optic grating sensor, the wavelength of optical signal will change, data acquisition mechanism receives the optical signal of wavelength change and is converted to the signal of telecommunication, just can monitor connecting plate to exit, realize the information monitoring to protection pressing plate state, when otherwise connecting plate does not exit, connecting plate does not cause the deformation of fiber-optic grating sensor, the wavelength of optical signal does not change, just can determine whether out that connecting plate is in input state, this monitoring method relies on fiber-optic grating sensor and fibre circuit, whole sealer only need a circuit realize connecting, the space hold of sealer panel is few, original equipment is not run and impact。And relying on optical signal transmission monitoring information rather than the transmission of traditional signal of telecommunication in status monitoring mechanism, it is to avoid the accuracy of monitoring system is impacted by electromagnetic environment around。
Owing to the centre wavelength value of fiber grating can be influenced by temperature, the impact of fiber grating is mainly reflected in thermo-optic effect and two aspects of thermal expansion effects by variations in temperature。When expanded by heating, optical fiber bragg wavelength increases；When meeting cold, optical fiber bragg wavelength reduces, and therefore last fiber-optic grating sensor is by error compensation mechanism and data acquisition mechanism, and its temperature is compensated, it is to avoid the result of monitoring is impacted by temperature。The effect of data acquisition mechanism is to convert optical signals to the signal of telecommunication that information processing mechanism can process, information processing mechanism judges whether described fiber-optic grating sensor deforms upon, judge that the protection pressing plate of correspondence is thrown and move back state, and the status information of protection pressing plate is carried out on-the-spot display or sends to remote monitoring main frame, can at the scene after operation protection pressing plate by showing throw bounce breath and check, the situation preventing maloperation occurs, improve the accuracy of work, and the throwing bounce breath of protection pressing plate can be sent to remote monitoring main frame, information is recorded, display, quadratic search, guarantee the accuracy of work。
Beneficial effects of the present invention is as follows:
1, to the throwing setback row on-line real time monitoring of protection pressing plate, can show in time when the operation that monitoring information and needs are moved back in protection pressing plate throwing is inconsistent, it is prevented that operation maintenance personnel is difficult to abundant and timely grasp pressing plate state and causes protective relaying maloperation to make accident；
2, by the whether action of the connecting plate of fiber-optic grating sensor monitoring and protecting pressing plate; it is provided without in prior art and relies on infrared sensor to detect protection pressing plate status information; the signal making monitoring is optical signal; can ensure that, under electromagnetic environment complicated in electric power protection control room, the accuracy that signal transmit, it is to avoid electromagnetic environment impacts monitoring accuracy；
3, fiber-optic grating sensor is sequentially connected in series by fibre circuit; make the winding displacement on sealer simple, it is to avoid in prior art, the throwing of protection pressing plate is moved back action and caused operational impact by more Monitoring Line, decreases the input of circuit; simplify wiring, reduce cost；
4, the throwing bounce breath protecting pressing plate can pass through communication module to be transmitted to remote monitoring main frame so that the work of field operation personnel can be carried out quadratic search by control centre technical staff, it is to avoid it maloperation situation occurs。
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described:
Fig. 1 is the system construction drawing of transformer substation protection pressure plate arranged type on-line monitoring system of the present invention；
Fig. 2 is the structural representation of status monitoring mechanism of the present invention；
Fig. 3 is the structural representation that the present invention protects pressing plate and fiber-optic grating sensor, fixed magnet position；
Fig. 4 is the structural representation that the present invention protects pressing plate and fiber-optic grating sensor；
Fig. 5 is the structural representation of fixed magnet of the present invention and moving magnet。
Detailed description of the invention
Below in conjunction with Fig. 1 to Fig. 5, technical solution of the present invention being shown further, detailed description of the invention is as follows:
Embodiment one
As shown in Figures 1 to 5: present embodiments provide a kind of transformer substation protection pressure plate arranged type on-line monitoring system, including the status monitoring mechanism 1 being sequentially connected with, error compensation mechanism 2, data acquisition mechanism 3 and information processing mechanism 4；
Described status monitoring mechanism 1 includes wideband light source 5 and several fiber-optic grating sensors 7 being sequentially connected by fibre circuit 6 head and the tail; described fiber-optic grating sensor 7 corresponding protection pressing plate 8 is arranged on sealer 9; described fiber-optic grating sensor 7 is arranged on the side of described protection pressing plate 8; when the connecting plate 10 of described protection pressing plate 8 exits, described connecting plate 10 can rotate to and contacts with described fiber-optic grating sensor 7；
Described error compensation mechanism 2 is for compensating the error of status monitoring mechanism 1, it is to avoid monitoring result is impacted by temperature；
Described data acquisition mechanism 3 receives the optical signal from error compensation mechanism 2, and converts optical signals to the signal of telecommunication and be delivered to information processing mechanism 4；
The signal of telecommunication that data collecting mechanism 3 is sended over by described information processing mechanism 4 processes; judge whether described fiber-optic grating sensor 7 deforms upon; judge that state of moving back thrown by the protection pressing plate 8 of correspondence, and the status information of protection pressing plate 8 is carried out on-the-spot display or sends to remote monitoring main frame 11。
Native system principle is to be realized by fiber-optic grating sensor, and the connecting plate whether being carried out monitoring and protecting pressing plate by the deformation of fiber-optic grating sensor is in the position putting into or exiting, it is achieved the job information of protection pressing plate is monitored。Protection pressing plate on sealer is matrix arrangement mostly; fiber-optic grating sensor correspondence protection pressing plate is also that matrix arrangement is on sealer; wideband light source is connected by fibre circuit and first fiber-optic grating sensor; optical signal is provided to whole monitoring system; light grating sensor is together in series by fibre circuit successively, and is connected with error compensation mechanism by last fiber-optic grating sensor。When connecting plate exits, rotation causes the deformation of sensor to touching fiber-optic grating sensor, the wavelength of optical signal will change, data acquisition mechanism receives the optical signal of wavelength change and is converted to the signal of telecommunication, just can monitor connecting plate to exit, realize the information monitoring to protection pressing plate state, when otherwise connecting plate does not exit, connecting plate does not cause the deformation of fiber-optic grating sensor, the wavelength of optical signal does not change, just can determine whether out that connecting plate is in input state, this monitoring method relies on fiber-optic grating sensor and fibre circuit, whole sealer only need a circuit realize connecting, the space hold of sealer panel is few, original equipment is not run and impact。And relying on optical signal transmission monitoring information rather than the transmission of traditional signal of telecommunication in status monitoring mechanism, it is to avoid the accuracy of monitoring system is impacted by electromagnetic environment around。
Owing to the centre wavelength value of fiber grating can be influenced by temperature, the impact of fiber grating is mainly reflected in thermo-optic effect and two aspects of thermal expansion effects by variations in temperature。When expanded by heating, optical fiber bragg wavelength increases；When meeting cold, optical fiber bragg wavelength reduces, and therefore last fiber-optic grating sensor is by error compensation mechanism and data acquisition mechanism, and its temperature is compensated, it is to avoid the result of monitoring is impacted by temperature。The effect of data acquisition mechanism is to convert optical signals to the signal of telecommunication that information processing mechanism can process, information processing mechanism judges whether described fiber-optic grating sensor deforms upon, judge that the protection pressing plate of correspondence is thrown and move back state, and the status information of protection pressing plate is carried out on-the-spot display or sends to remote monitoring main frame, can at the scene after operation protection pressing plate by showing throw bounce breath and check, the situation preventing maloperation occurs, improve the accuracy of work, and the throwing bounce breath of protection pressing plate can be sent to remote monitoring main frame, information is recorded, display, quadratic search, guarantee the accuracy of work。
Described fiber-optic grating sensor 7 is arranged on the side of described protection pressing plate 8 by the first support 12; described first support 12 is arranged on described sealer 9; described fiber-optic grating sensor 7 two ends arrange elastic base 13, and described fiber-optic grating sensor 7 is arranged on described first support 12 by elastic base 13。This is a kind of structure that fiber-optic grating sensor is arranged, and is supported by the first support, and connecting plate can contact so that its deformation with fiber-optic grating sensor when exiting。Fiber-optic grating sensor can be protected by elastic base; connecting plate needs just to carry out throwing the monitoring of the state of moving back with sensor contacts; both are hard contact; easily caused by the damage of equipment after time length; soft contact can be realized when its contact-impact by elastic base; can causing the deformation of sensor, will not sensor be damaged again, protected effect is fine。
The side of described fiber-optic grating sensor 7 arranges fixed magnet 15 by the second support 14 on described sealer 9, and described connecting plate 10 arranges insulation snap ring 16, and on described insulation snap ring 16, corresponding described fixed magnet 15 arranges moving magnet 17。Moving magnet is had magnetic effect by the fixed magnet arranged, moving magnet is arranged on connecting plate by the snap ring that insulate, the normal function of connecting plate will not be impacted, and existing equipment need not be changed, such as boring, renewal part etc., equipment is installed very just, fixed magnet and moving magnet coordinate and when connecting plate exits, it can be fixed, preventing toy or touch by mistake and cause maloperation, the safety of use is higher, reduces the probability that electric power accident occurs。
Described fixed magnet 15 is arranged on described second support 14 by spring seat 18, and described spring seat 18 includes extension spring。Extension spring provides contractility when spring elongation, so can grasp a balance between magnetic attraction and fiber-optic grating sensor deformation resilience power at connecting plate, both can guarantee that fixed magnet contacted with moving magnet and had enough adhesive dynamics, can keep again the deformation of fiber-optic grating sensor in a suitable scope, equipment itself will not be damaged。
Embodiment two
As depicted in figs. 1 and 2: present embodiments provide a kind of transformer substation protection pressure plate arranged type on-line monitoring system, including the status monitoring mechanism 1 being sequentially connected with, error compensation mechanism 2, data acquisition mechanism 3 and information processing mechanism 4；
Described status monitoring mechanism 1 includes wideband light source 5 and several fiber-optic grating sensors 7 being sequentially connected by fibre circuit 6 head and the tail; described fiber-optic grating sensor 7 corresponding protection pressing plate 8 is arranged on sealer 9; described fiber-optic grating sensor 7 is arranged on the side of described protection pressing plate 8; when the connecting plate 10 of described protection pressing plate 8 exits, described connecting plate 10 can rotate to and contacts with described fiber-optic grating sensor 7；
Described error compensation mechanism 2 is for compensating the error of status monitoring mechanism 1, it is to avoid monitoring result is impacted by temperature；
Described data acquisition mechanism 3 receives the optical signal from error compensation mechanism 2, and converts optical signals to the signal of telecommunication and be delivered to information processing mechanism 4；
The signal of telecommunication that data collecting mechanism 3 is sended over by described information processing mechanism 4 processes; judge whether described fiber-optic grating sensor 7 deforms upon; judge that state of moving back thrown by the protection pressing plate 8 of correspondence, and the status information of protection pressing plate 8 is carried out on-the-spot display or sends to remote monitoring main frame 11。
Described error compensation mechanism 2 includes fiber-optical grating temperature sensor。Utilizing without metallization packaged technique, have thermal conduction characteristic and high-strength characteristic, compact structure is beneficial on sealer and arranges, can be bonded on sealer by binding agent, and anti-electromagnetic interference capability is strong, is adapted under the environment residing for apparatus of the present invention and uses。
Described data acquisition mechanism 3 includes fiber grating Network Analyzer, and Main Function converts optical signals to the signal of telecommunication, it is possible to be arranged on protection outdoor, reduces electromagnetic environment and the signal of telecommunication after conversion is impacted, it is ensured that the accuracy of monitoring。
Embodiment three
As depicted in figs. 1 and 2: the present embodiment additionally provides a kind of transformer substation protection pressure plate arranged type on-line monitoring system, including the status monitoring mechanism 1 being sequentially connected with, error compensation mechanism 2, data acquisition mechanism 3 and information processing mechanism 4；
Described status monitoring mechanism 1 includes wideband light source 5 and several fiber-optic grating sensors 7 being sequentially connected by fibre circuit 6 head and the tail; described fiber-optic grating sensor 7 corresponding protection pressing plate 8 is arranged on sealer 9; described fiber-optic grating sensor 7 is arranged on the side of described protection pressing plate 8; when the connecting plate 10 of described protection pressing plate 8 exits, described connecting plate 10 can rotate to and contacts with described fiber-optic grating sensor 7；
Described error compensation mechanism 2 is for compensating the error of status monitoring mechanism 1, it is to avoid monitoring result is impacted by temperature；
Described data acquisition mechanism 3 receives the optical signal from error compensation mechanism 2, and converts optical signals to the signal of telecommunication and be delivered to information processing mechanism 4；
The signal of telecommunication that data collecting mechanism 3 is sended over by described information processing mechanism 4 processes; judge whether described fiber-optic grating sensor 7 deforms upon; judge that state of moving back thrown by the protection pressing plate 8 of correspondence, and the status information of protection pressing plate 8 is carried out on-the-spot display or sends to remote monitoring main frame 11。
Described information processing mechanism 4 includes controller 19, the display 20 being connected with described controller 19 and communication module 21, and described controller 19 is connected with described remote monitoring main frame 11 by described communication module 21。Controller can adopt programmable logic controller (PLC); the signal of telecommunication received is processed; and display over the display; communication module can also be passed through send the throwing bounce breath of protection pressing plate to remote monitoring main frame; communication module can adopt wired or wireless mode; wired fiber optic conduction that adopts, the wireless mode by GPRS/3G/4G is transmitted, it is ensured that the accuracy of signal transmission and remote。Far-end controls main frame and includes host computer, memorizer, alarm, display, it is achieved protection pressing plate is thrown and moves back the display of data, storage, and can maloperation be reported to the police。
Embodiment four
The present embodiment additionally provides the using method of a kind of transformer substation protection pressure plate arranged type on-line monitoring system, comprises the steps:
1) opening wideband light source, information processing mechanism receives data acquisition mechanism and sends the monitoring information of the fiber-optic grating sensor come, system starts；
2) when certain protection pressing plate puts into; the connecting plate of this protection pressing plate does not contact with corresponding fiber-optic grating sensor; do not cause the deformation of fiber-optic grating sensor; grating on this fiber-optic grating sensor does not produce deformation yet; data acquisition mechanism monitors wavelength and does not change, it is judged that this protection pressing plate is not in exit status；
3) when certain protection pressing plate exits; the connecting plate of this protection pressing plate contacts with corresponding fiber-optic grating sensor and causes fiber-optic grating sensor deformation; so that the grating on fiber-optic grating sensor produces deformation; data acquisition mechanism monitors wavelength and changes, it is judged that this protection pressing plate is in exit status；
4) throwing of each protection pressing plate calculated is moved back state and is displayed at the scene by information processing mechanism, and throwing is moved back status information sends to remote monitoring main frame and realize remote online monitoring。
What finally illustrate is, above example is only in order to illustrate technical scheme and unrestricted, other amendments that technical scheme is made by those of ordinary skill in the art or equivalent replace, without departing from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of scope of the presently claimed invention。
Claims (8)
1. a transformer substation protection pressure plate arranged type on-line monitoring system, it is characterised in that: include the status monitoring mechanism, error compensation mechanism, data acquisition mechanism and the information processing mechanism that are sequentially connected with；
Described status monitoring mechanism includes wideband light source and several fiber-optic grating sensors being sequentially connected by fibre circuit head and the tail; described fiber-optic grating sensor correspondence protection pressing plate is arranged on sealer; described fiber-optic grating sensor is arranged on the side of described protection pressing plate; when the connecting plate of described protection pressing plate exits, described connecting plate can rotate to and contacts with described fiber-optic grating sensor；
Described error compensation mechanism is for compensating the error of status monitoring mechanism, it is to avoid monitoring result is impacted by temperature；
Described data acquisition mechanism receives from the optical signal of error compensation mechanism, and converts optical signals to the signal of telecommunication and be delivered to information processing mechanism；
The signal of telecommunication that data collecting mechanism is sended over by described information processing mechanism processes; judge whether described fiber-optic grating sensor deforms upon; judge that state of moving back thrown by the protection pressing plate of correspondence, and the status information of protection pressing plate is carried out on-the-spot display or sends to remote monitoring main frame。
2. transformer substation protection pressure plate arranged type on-line monitoring system as claimed in claim 1; it is characterized in that: described fiber-optic grating sensor is arranged on the side of described protection pressing plate by the first support; described first support is arranged on described sealer; described fiber-optic grating sensor two ends arrange elastic base, and described fiber-optic grating sensor is arranged on described first support by elastic base。
3. transformer substation protection pressure plate arranged type on-line monitoring system as claimed in claim 2; it is characterized in that: the side of described fiber-optic grating sensor arranges fixed magnet by the second support on described sealer; arranging insulation snap ring on described connecting plate, on described insulation snap ring, corresponding described fixed magnet arranges moving magnet。
4. transformer substation protection pressure plate arranged type on-line monitoring system as claimed in claim 3, it is characterised in that: described fixed magnet is arranged on described second support by spring seat, and described spring seat includes extension spring。
5. transformer substation protection pressure plate arranged type on-line monitoring system as claimed in claim 1, it is characterised in that: described error compensation mechanism includes fiber-optical grating temperature sensor。
6. transformer substation protection pressure plate arranged type on-line monitoring system as claimed in claim 1, it is characterised in that: described data acquisition mechanism includes fiber grating Network Analyzer。
7. transformer substation protection pressure plate arranged type on-line monitoring system as claimed in claim 1; it is characterized in that: described information processing mechanism includes controller, the display being connected with described controller and communication module, and described controller is connected with described remote monitoring main frame by described communication module。
8. the using method of a transformer substation protection pressure plate arranged type on-line monitoring system, it is characterised in that: comprise the steps:
1) opening wideband light source, information processing mechanism receives data acquisition mechanism and sends the monitoring information of the fiber-optic grating sensor come, system starts；
2) when certain protection pressing plate puts into; the connecting plate of this protection pressing plate does not contact with corresponding fiber-optic grating sensor; do not cause the deformation of fiber-optic grating sensor; grating on this fiber-optic grating sensor does not produce deformation yet; data acquisition mechanism monitors wavelength and does not change, it is judged that this protection pressing plate is not in exit status；
3) when certain protection pressing plate exits; the connecting plate of this protection pressing plate contacts with corresponding fiber-optic grating sensor and causes fiber-optic grating sensor deformation; so that the grating on fiber-optic grating sensor produces deformation; data acquisition mechanism monitors wavelength and changes, it is judged that this protection pressing plate is in exit status；
4) throwing of each protection pressing plate calculated is moved back state and is displayed at the scene by information processing mechanism, and throwing is moved back status information sends to remote monitoring main frame and realize remote online monitoring。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610200658.6A CN105703485B (en) | 2016-04-01 | 2016-04-01 | A kind of transformer substation protection pressure plate arranged type on-line monitoring system and its application method |
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| CN201610200658.6A CN105703485B (en) | 2016-04-01 | 2016-04-01 | A kind of transformer substation protection pressure plate arranged type on-line monitoring system and its application method |
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| CN105703485A true CN105703485A (en) | 2016-06-22 |
| CN105703485B CN105703485B (en) | 2019-02-15 |
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| CN107394895A (en) * | 2017-08-14 | 2017-11-24 | 贵州电网有限责任公司 | A kind of hard pressing plate Long-Range Surveillance Unit of transforming plant protecting |
| CN108736572A (en) * | 2018-05-31 | 2018-11-02 | 国网河南省电力公司检修公司 | Power equipment intelligence control platform |
| CN110011286A (en) * | 2019-04-28 | 2019-07-12 | 国网新疆电力有限公司 | System and corresponding acquisition method for the acquisition of relay-protection pressing plate data |
| CN110048508A (en) * | 2019-04-10 | 2019-07-23 | 国网浙江省电力有限公司检修分公司 | Substation's pressing plate remote monitoring system for status |
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| CN103439948A (en) * | 2013-08-28 | 2013-12-11 | 国家电网公司 | Transformer substation protecting pressing plate intelligent operating and monitoring system |
| CN104022576A (en) * | 2014-06-19 | 2014-09-03 | 重庆大学 | Terminal and system for monitoring protection pressing plate states |
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| CN103439948A (en) * | 2013-08-28 | 2013-12-11 | 国家电网公司 | Transformer substation protecting pressing plate intelligent operating and monitoring system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107394895A (en) * | 2017-08-14 | 2017-11-24 | 贵州电网有限责任公司 | A kind of hard pressing plate Long-Range Surveillance Unit of transforming plant protecting |
| CN108736572A (en) * | 2018-05-31 | 2018-11-02 | 国网河南省电力公司检修公司 | Power equipment intelligence control platform |
| CN110048508A (en) * | 2019-04-10 | 2019-07-23 | 国网浙江省电力有限公司检修分公司 | Substation's pressing plate remote monitoring system for status |
| CN110011286A (en) * | 2019-04-28 | 2019-07-12 | 国网新疆电力有限公司 | System and corresponding acquisition method for the acquisition of relay-protection pressing plate data |
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|---|---|
| CN105703485B (en) | 2019-02-15 |
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