CN102035260A - Intelligent warning and fault analysis realizing method for intelligent transformer substation monitoring system - Google Patents
Intelligent warning and fault analysis realizing method for intelligent transformer substation monitoring system Download PDFInfo
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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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
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- Y04S10/16—Electric power substations
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Abstract
The invention relates to an intelligent warning and fault analysis realizing method applied to an intelligent transformer substation monitoring system, which belongs to the technical field of transformer substation automation. An intelligent warning and fault analyzing module is used for analyzing various pieces of information reported by a measurement and control device, a protective device and a fault recorder, generating a fault analysis report by combining topology with every fault in an automatic identification fault reasoning model, and submitting the generated fault analysis report to a scheduling master station at a master station end. The workload of personnel on duty is greatly reduced, and the fault processing efficiency is improved. The requirement of an intelligent transformer substation on an intelligent warning and fault analysis system can be met, faults can be quickly judged and analyzed, and processing schemes can be provided so as to assist the personnel on duty in quickly processing the faults, and reduce the loss caused by the faults.
Description
Technical field
The invention belongs to automation of transformation substations technical field, relate in particular to electric substation automation system intelligent alarm and accident analysis implementation method.
Background technology
At present, State Grid Corporation of China is carrying forward vigorously the construction of intelligent grid, various advanced persons' sensing measurement technology, mechanics of communication, computer information technology and control technology and physics grid height are integrated, the following operation of power networks control that brings thus is strict more, the technical difficulty of substation operation operation continues to increase, and the efficient of running job needs further to improve.In present substation operation operation, traditional handwork still occupies very big proportion, and along with the popularization of digital transformer substation, the semaphore of transformer station is more and more, but operating experience shows, in the bulk information of in substation accident and severely subnormal process, exporting, major part all has been information or a redundant information auxiliary, the evidence effect, when breaking down, various signalizing activities are frequent, person on duty's monitor task is heavier, is easy to omit the significant alarm signal, incurs loss through delay to handle to cause the accident.Therefore; be necessary very much to sum up transformer station's common faults type and failure criterion thereof; when breaking down, has this fault by the computer software automated reasoning; make the operations staff be obtained the accident analysis result rapidly: comprise that faulty equipment, trip switch, protection action message, fault are separate, fault current, fault localization, nature of trouble, treatment measures etc., this is significant for speed, efficient, quality of improving accident treatment.
Summary of the invention
The purpose of this invention is to provide a kind of electric substation automation system intelligent alarm and accident analysis implementation method, can be used as a senior application module of intelligent substation supervisory control system, accomplish to judge rapidly and analysis of failure, provide in the far also and send dispatching patcher, provide processing scheme to the operator on duty, assist its rapid handling failure, reduce the loss that fault is brought.
The present invention is by the following technical solutions:
Intelligent substation supervisory control system intelligent alarm and accident analysis implementation method is characterized in that may further comprise the steps:
This method is embedded in the intelligent substation supervisory control system in the mode of software module; obtain information such as the warning information that needs, remote measurement value, equipment state, protection information, failure wave-recording file from the intelligent substation integrated information platform, can effectively guarantee in time to obtain various failure criterions.
(1) the corresponding one or more fault initiating signals of every kind of fault type of transformer station after inference machine software is received enabling signal, start corresponding fault type inference logic;
(2) substation equipment is carried out topology and connect analysis, charged situation according to equipment, obtain the running status of current enabling signal corresponding device, such as current the switch which switch moves, is connected with circuit, switch of each side of main transformer etc. being arranged on the bus;
(3) location status of the remote signalling in a period of time before and after the enabling signal time of origin, remote measurement, protection information, switch etc. is carried out analyzing and processing,, check whether satisfy inference logic with reference to the associated device that obtains in the step (2);
(4) as satisfying the fault type inference logic in the step (3), wait for the record ripple HDR file that wave recording device is sent up, therefrom obtain information such as fault is separate, fault current, fault localization;
(5) get the troubleshooting prediction scheme of this fault type correspondence from knowledge base, the information of integrating step (4) generates far and also is saved in history library;
(6) Trouble Report is sent to scheduling by telecontrol system with IEC104 amplifying message form, simultaneously far is deposited local history library and have access to and print for the user.
For the most common failure of transformer station, generation reason, processing method that the operations staff grasps every kind of fault are crucial, but also are miscellaneous simultaneously, often need go to consult prediction scheme.More and more standardization of design in view of present transformer station, the network configuration of the transformer station of identical electric pressure and equipment situation are all similar, this method has been summed up the fault reasoning model of a design inference machine software, it has contained transformer station's common faults type and criterion thereof, and the fault type of support has: the single-phase transient fault of circuit, the single-phase permanent fault of circuit, alternate and the three-phase fault of circuit, circuit is accepted the signal tripping operation of jumping far away, the circuit hand closes in fault, transform fault in the circuit reclosure time, the circuit reclosure time transforms fault outward, circuit single-phase fault fault is mutually malfunctioning, circuit phase-to phase fault switch fault is mutually malfunctioning, the non-fault of single-phase permanent fault switch is mutually malfunctioning, busbar fault, the busbar fault fault is mutually malfunctioning, the non-fault of busbar fault is mutually malfunctioning, the main transformer fault, main transformer breakdown switch fault is mutually malfunctioning, the heavy gas action of main transformer internal fault, the capacitor fault, the reactor fault, stand and hinder with accident, direct current disappearance fault etc.Therefore inference machine software can be discerned these faults automatically and report the fault reasoning result at the bulletin window fault reasoning page.This method summary the occurrence condition of most common failure type of transformer station, but automated reasoning and report the most common failure of transformer station does not need the user to import complicated logic, have safeguard simple, the characteristics of highly versatile.
For distinguishing different remote signalling as failure criterion; be provided with a remote signalling type field in the remote signalling definition list of this method in intelligent substation supervisory control system database remote signalling is divided into different types; the type is used to discern the remote signalling that participates in reasoning from logic, mainly contains route protection and jumps A; route protection is jumped B; route protection is jumped C; the route protection action; female differential work; malfunctioning action; reclosing; main transformer main protection action; main transformer backup protection action; this body weight of main transformer gas; the switch protection action; the capacitor protection action; the reactor protection action; stand with becoming the protection action; three-phase is inconsistent; protect the work of far beating; discriminating gear action on the spot; direct current disappears; the position of the switch; switch A phase position; switch B phase position; switch C phase position etc.Find out useful signal numerous remote signalling that inference machine software is received according to these remote signalling types and participate in fault judgement after breaking down.
To accurately judge a fault, need in the signal damping district that the intelligent substation supervisory control system is received, intercept the signal of a timeslice as the reasoning foundation, only information and the equipment state received in this timeslice are carried out reasoning and judging, this timeslice is called " window fault time "." window fault time " will stride certain fault type enabling signal each a period of time of front and back of receiving." window fault time " is too short to leak the reasoning condition easily, caused and failed to judge, but oversizely cause erroneous judgement again easily.This time window can be set according to transformer station's actual conditions flexibly by the user, and generally can adjust is 5～15 seconds, and can adjust flexibly according to on-the-spot time ruuning situation.
Formulate simple and practical knowledge base structure, comprised fault title, fault level, fault diagram, affiliated scheduling, failure cause, treatment measures etc.
The knowledge base territory is set in the remote signalling definition list, and this knowledge base territory is used for the record of index knowledge base table, and the user can access the content that the intelligent alarm window shows this knowledge base according to warning information on the alarm window.
Topological analysis has fully taken into account the various modes of connection of existing transformer station and operational mode, when running status changes, and the also corresponding adjustment of fault judgement logic, such as, when judging busbar fault, only the circuit with current operation adds decision logic, and the circuit of power failure does not then participate in logic determines.
Only after the enabling signal of receiving a certain fault type, just begin the reasoning and judging of this fault type, as satisfy condition, The reasoning results can be presented at an independent The reasoning results page of alarm window, and highlight indication and audio alert are arranged, so that the rapid handling failure of user.
Combine the information of failure wave-recording when generating Trouble Report, can show information such as fault current, the fault when fault takes place is separate, fault localization.
Far is sent to the main website end by telecontrol system, so that the dispatcher obtains the details of transformer station's fault the very first time, replaces traditional phone and reports.
The beneficial effect that the present invention reached: for dispatching terminal; after breaking down in the past; need substation operation personnel combing from the numerous information of alarm window to go out Useful Information; join protection information, failure wave-recording file analysis-by-synthesis could be put the analysis report that is out of order in order again; to the scheduling report, not only time-consuming but also require great effort then, back automatic generation far can take place and be sent to scheduling in clearly in fault; alleviate operator on duty's work load greatly, improve troubleshooting efficient.For unattended operation transformer station, this function is very necessary especially.
Description of drawings
Fig. 1 is a network structure of the present invention;
Fig. 2 is 500kV typical wiring figure;
Fig. 3 is a program flow diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described.Following examples only are used for technical scheme of the present invention more clearly is described, and can not limit protection scope of the present invention with this.
Be illustrated in figure 1 as network structure of the present invention.Transformer station's end comprises parts such as intelligent substation supervisory control system, measure and control device, protective device, fault wave recording device; intelligent alarm and failure analysis module are as a senior application module of intelligent substation supervisory control system; be responsible for analyzing the various information that measure and control device, protective device, fault wave recording device etc. are sent up; every kind of fault in conjunction with in topologies and the automatic identification fault reasoning model generates the scheduling station of delivering to the main website end in the far also.
Be example with 500kV typical wiring figure as shown in Figure 2,, for example rational analysis process of the present invention be described with fault " 500kV circuit one A phase transient fault, successful reclosing " in conjunction with Fig. 3 program realization flow of the present invention figure.
Inference machine can not stop the type of received signal is done inspection; when detecting type and be the signal of " route protection jump A "; can start a timer immediately; window finishes to wait for fault time; guarantee that the signal that this fault should be received all receives; start the fault type reasoning module of " circuit A phase transient fault, successful reclosing " immediately.Circuit generally can be joined two cover route protections, and the route protection of any cover protection is jumped a-signal all can start this fault type reasoning module.This fault type reasoning module can carry out topological analysis, obtain having the circuit breaker of annexation with it according to the circuit under the enabling signal, according to the mode of connection and running status difference might be one or two circuit breaker, should obtain circuit breaker 5011 and circuit breaker 5012 corresponding to this example, then inference machine in corresponding to the signal damping district of this of window fault time according to the signal corresponding device and the remote signalling type judges circuit breaker 5011 and circuit breaker 5012 whether A phase separating brake has taken place in chronological order and A closes a floodgate mutually, the reclosing signal whether circuit breaker 5011 and circuit breaker 5012 are arranged, satisfy above condition and then report " 500kV circuit A phase transient fault, successful reclosing " at the fault reasoning page of alarm window.Then inference machine is waited for uploading of failure wave-recording file; behind the failure wave-recording HDR file of receiving this route protection; information such as fault current, the fault that can therefrom take out this fault is separate, fault localization; from knowledge base, find knowledge base record again corresponding to this fault; generate the far of this fault; exist in the history library, wait the person on duty to have access to or print, and can be with this far by giving scheduling on the kinematic system.
The reasoning and judging process of other fault type and this example are similar, are that concrete decision logic is different.For those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle, can also make some improvement and distortion, these improvement and distortion also should be considered as protection scope of the present invention.
Claims (9)
1. intelligent substation supervisory control system intelligent alarm and accident analysis implementation method may further comprise the steps:
(1) the corresponding one or more fault initiating signals of every kind of fault type of transformer station after inference machine software is received enabling signal, start corresponding fault type inference logic;
(2) substation equipment is carried out topology and connect analysis,, obtain the running status of current enabling signal corresponding device according to the charged situation of equipment;
(3) the location status relevant information of the remote signalling in a period of time before and after the enabling signal time of origin, remote measurement, protection information, switch is carried out analyzing and processing,, check and whether satisfy inference logic with reference to the associated device that obtains in the step (2);
(4) as satisfying the fault type inference logic in the step (3), wait for the record ripple HDR file that wave recording device is sent up, obtain therefrom that fault is separate, fault current, fault localization relevant information;
(5) transfer the troubleshooting prediction scheme of this fault type correspondence from knowledge base, the information of integrating step (4) generates far and also is saved in history library;
(6) with far by sending scheduling on the telecontrol system, simultaneously far is deposited in local history library and has access to and print for the user.
2. intelligent substation supervisory control system intelligent alarm according to claim 1 and accident analysis implementation method is characterized by: this method comprises the occurrence condition of the most common failure type of transformer station, and automated reasoning is also reported the most common failure of transformer station.
3. according to claim 1 described intelligent substation supervisory control system intelligent alarm and accident analysis implementation method, it is characterized by: in the remote signalling definition list of this method in intelligent substation supervisory control system database the remote signalling type field is set, remote signalling is divided into different types is used to discern the remote signalling that participates in reasoning from logic.
4. intelligent substation supervisory control system intelligent alarm according to claim 3 and accident analysis implementation method, it is characterized by: the knowledge base territory is set in the remote signalling definition list, this knowledge base territory is used for the record of index knowledge base table, and the user accesses the content that the intelligent alarm window shows this knowledge base according to warning information on the alarm window.
5. intelligent substation supervisory control system intelligent alarm according to claim 1 and accident analysis implementation method is characterized by: the structure of described knowledge base comprises fault title, fault level, fault diagram, affiliated scheduling, failure cause, treatment measures.
6. intelligent substation supervisory control system intelligent alarm according to claim 1 and accident analysis implementation method is characterized by: topological analysis is according to the existing various modes of connection of transformer station and operational mode, corresponding adjustment fault judgement logic.
7. intelligent substation supervisory control system intelligent alarm according to claim 1 and accident analysis implementation method, it is characterized by: the signal of a timeslice of intercepting is as the reasoning foundation in the buffering area of the signal that system is received, set one fault time window, only information and the equipment state received in this time window are carried out reasoning and judging, this timeslice is set according to transformer station's actual conditions by the user.
8. intelligent substation supervisory control system intelligent alarm according to claim 1 and accident analysis implementation method, it is characterized by: the reasoning and judging of fault type is started by the enabling signal of this fault type, The reasoning results is presented at an independent The reasoning results page of alarm window, and highlight indication and audio alert prompting user handling failure are arranged.
9. intelligent substation supervisory control system intelligent alarm according to claim 1 and accident analysis implementation method, it is characterized by: the information in conjunction with failure wave-recording generates far, shows separate, the fault localization relevant information of fault current, fault when fault takes place.
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