CN102436226A - Online monitoring and condition maintenance management system - Google Patents
Online monitoring and condition maintenance management system Download PDFInfo
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- CN102436226A CN102436226A CN2011102722761A CN201110272276A CN102436226A CN 102436226 A CN102436226 A CN 102436226A CN 2011102722761 A CN2011102722761 A CN 2011102722761A CN 201110272276 A CN201110272276 A CN 201110272276A CN 102436226 A CN102436226 A CN 102436226A
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Abstract
The invention relates to an online monitoring and condition maintenance management system, which is a layered and distributed data management and computer system, faces to a plurality of substation high-voltage equipment and adopts a multi-server level-to-level management system. The online monitoring and condition maintenance management system comprises an online monitoring equipment layer, a substation data network layer and a remote data center. By constructing and applying the management system, the online monitoring system is promoted to be transitioned to an all-round, networked, intelligent and comprehensive condition monitoring, diagnosis and service management system from the traditional isolated and static experimental system. The system provides a powerful technical supporting platform for overcoming periodic maintenance blindness, reducing maintenance times, reducing maintenance expenses, delaying maintenance cycle to the utmost extent, truly realizing condition maintenance for power system operation and management departments and further improving the operation rate of the equipment and the safety of power grids.
Description
Technical field
The present invention relates to electric system, be specially a kind of intelligent management system that high-tension apparatuses such as each electric pressure transformer of electric system, current transformer, lightning arrester, condenser bushing, coupling condenser and switch is provided state on_line monitoring and diagnosis.
Background technology
Recent two decades comes China's power industry to obtain the development of advancing by leaps and bounds, and large-scale power station, power grid construction make electrical network and automatic technology is used in power supply enterprise and management level have proposed increasingly high requirement.
Current grid dispatching management and the equipment operation management of in the operational management of electrical network, comprising basically, grid dispatching management mainly is optimized scheduling from macroscopic perspective to network load, guarantees the economy and the security of electrical network; Equipment operation management mainly is responsible for the management such as installation, maintenance, maintenance, defective of electric power primary equipment assets from the body angle.Electrical network is kept watch on and the control operation has developed complete technology and management system at present, and with regard to the body operational management aspect of equipment, mainly is that the deciding inspection, patrol and examine of dependence equipment, spot check and preventive trial are main on the management system aspect.Operation practice statistics is for many years found: the accident rate of China's extra-high tension unit is quite high; Most power equipment accidents are under all qualified situation of over the years prerun data, to take place; The detection ladder of management of original preventive trial is worth paying close attention to and taking measures necessary, with the operational reliability of further raising extra-high tension unit.Simultaneously, a large amount of casualty datas show: existing prophylactic repair is not considered the running status of equipment itself, and specific aim is not strong, imposes uniformity without examining individual cases, and the sensitivity and the validity of detection equipment defective are lower.Maintenance mechanism and means show more and more outstandingly in the electrical production practice in intrinsic deficiencies in aspect itself such as science, equivalence, authenticity, periodicity and economy.
Along with the fast development of electrical network, under traditional power transmission and transforming equipment maintenance pattern, need more human and material resources and financial resources, the management mode of original high-tension apparatus more and more is difficult to satisfy the constantly requirement of development of power grid construction scale.Simultaneously, along with the fast development of China's economic construction, the quick remodeling of economic construction structure, power consumer is to the requirement of mains supply reliability also increasingly stringent; Under the prerequisite that guarantees power supply reliability, explore advanced overhaul management pattern, reduce excessively maintenance, effectively reduce production and operation cost, be the key subjects that grid company faces.
Along with electric system reform deeply and power consumer to the requirement of power supply reliability; Press for that high voltage electric equipment is implemented with the state-detection is the state maintenance on basis; Promptly under the condition that does not influence the normal operation of primary equipment; Obtain the characteristic information that reflects the high-tension apparatus state from multiple support channels, on this basis its running status is carried out comprehensive diagnos, can reflect the general level of the health of high-tension apparatus more in time, accurately, delicately; Thereby instruct the maintenance of high-tension apparatus, to overcome the deficiency of classic method.
At present, all obtained certain application to repair based on condition of component product, technology and the ladder of management of every profession and trade, higher relatively in the repair based on condition of component application level of rotary machine equipment such as some field such as generator steam turbine.Power industry high voltage electric equipment repair based on condition of component also progressively obtains paying attention to; Done more work from prolonging the test period to the aspects such as Preliminary Applications of on-line monitoring product, also obtained certain achievement to envelope test data, the comprehensive overhaul management system that patrols and examines information such as data, defect record.But all in all; Development and application level are also not fully up to expectations; The high voltage electric equipment complex structure is in the running environment of strong electromagnetic again; The obtaining of equipment state, fault detect and diagnosis very difficult, the aspects such as repair based on condition of component management theory method of system do not have more unified understanding yet in application process simultaneously, and level is uneven.Therefore, it is theoretical to develop comprehensive repair based on condition of component, fully uses for reference and utilize the advanced technology of association area, and it is very necessary and urgent to set up standardized high-tension apparatus maintenance and maintaining-managing system.
Summary of the invention
The technical matters that the present invention solved is to provide a kind of on-line monitoring and repair based on condition of component management system, to solve the shortcoming in the above-mentioned background technology.
The technical matters that the present invention solved adopts following technical scheme to realize:
A kind of on-line monitoring and repair based on condition of component management system; Distribute on the spot a series of digital integral intelligent monitoring means are installed; The state parameters such as insulation of real-time monitoring substation high-tension apparatus; Utilize the full digital communication of standing of on-the-spot industrial bus realization, control and manage all kinds of monitoring systems through the end administrative unit of standing, realization and distant place management system is mutual in the online monitoring data of collecting panoramaization.Management system can be estimated and analyze the health status of equipment; And relevant data merged; Set up high-tension apparatus operation and overhaul management data center, under unified integrated data platform, the user combines other productions and management system; The effective information of seamless extraction relevant device is realized status remote real time on-line monitoring and the diagnosis to high-tension apparatus, formulates plant maintenance and repair based on condition of component strategy.
Said management system is for high-tension apparatuses such as each electric pressure transformer of electric system, current transformer, lightning arrester, condenser bushing, coupling condenser and switch provide state on_line monitoring and diagnosis.To different monitoring targets form capacitive apparatus insulated monitoring, on off state monitoring, transformer comprehensive monitoring, subsystems such as monitoring and bus temperature rise monitoring are put in office; So just set up the status information real time on-line monitoring software and hardware system platform of all kinds of high-tension apparatuses at each transformer station's end; Can there be the status information to ground online acquisition high-tension apparatus in this system; Comprise Jie's damage, electric capacity, Leakage Current, current in resistance property, system voltage, frequency, humiture, filthy electric current, hydrocarbon content, Wei Shui, switching value, divide-shut brake coil current waveform, switch contact wearing and tearing, office's discharge signal, bus temperature rise or the like, form complete high-tension apparatus status monitoring information on-line monitoring net on the spot.After each terminal system of standing is gathered, calculates, analyzed above-mentioned information all kinds of relevant informations such as data and warning are collected to station end engine control system and communicate by letter with shouting and be sent to long-range integrated data platform in real time through electric power data.Integrated data platform is as the center node of each transformer station's engine control system; Its basic role is to the relevant on-line monitoring information collecting of each station equipment, gather, Treatment Analysis, and it also can obtain information such as relevant device machine account information, prerun information, operation information, fault and defective with mis system and SCADA systems incorporate simultaneously.It is the warehouse, stack room of an overall high-tension apparatus status information still not, also is the distribution platform of a status information of equipment, especially the consulting management platform of high-tension apparatus fault diagnosis, operation and a repair and maintenance.
Said system is a distributed system, towards a plurality of transformer stations high-tension apparatus, adopts the differentiated control system form of multiple servers.Central server is responsible for analysis, control, management and the diagnosis of total system, and the substation server is responsible for the management and the control of a sub-systems, and communication processor CMU is responsible for the collection and the processing of each status flag amount respectively.
Said system is layered distribution type data management and computer system, specifically comprises online monitoring equipment layer, substation data network layer and remote data center.
Integrated data platform is that total system provides a Distributed Application exploitation and running environment; As an efficient sane middleware between application system and bottom hardware system, the operating system; Effectively upper layer application and first floor system are kept apart; The design and running that is based upon different Computer Architectures and the exploitation of this Distributed Application on the operating system and running environment simultaneously and is upper layer application provides the environment of a kind of development platform and operation, for the stability and high efficiency of system provides reliable guarantee and establish a firm foundation.
Transformer station's control links to each other through the electric power data communication network with the remote diagnostic center with preparatory diagnostic horizon.The integrated data platform system also should foundation and the interface of systems such as production management system and SCADA, can obtain the relevant informations such as machine account, operation and maintenance of equipment, shares the basic data that becomes the repair based on condition of component system.
Said system software level distributes as follows:
Ground floor is the system hardware layer.Each server and workstation adopt various hardware architecture workstations, server and the microcomputer based on the RISC/CISC chip, like COMPAQ, ALPHA, SUN, IBM, HP and all kinds of PC.
The second layer is an operating system layer.Operating system adopt ripe meet international industrial standard in real time, multi-user, the pure WINDOWS NT4.0/2000/XP of multitask, POSIX/UNIX and LINUX operating system;
The 3rd layer is the general-purpose platform layer.General-purpose platform can be regarded a middleware software bag between upper layer application system and bottom different hardware system, the different operating system as; This software package is kept apart upper layer application and first floor system effectively; Be based upon different Computer Architectures and the distributed system operation platform on the operating system simultaneously, the environment of a kind of development platform and operation is provided for the design and running of upper layer application.
The 4th layer is the data communication layer.The data communication layer is that the data preparation is carried out in the more senior application of system; It obtains for the Various types of data of system the communication middleware is provided; Concerning the upper layer application of system, again need not be concerned about the organizational form of data in transport process, and some control measure; It just need be according to concrete communication situation, the corresponding member bag of correct selection.
Layer 5 is the application platform layer.The application platform layer is that all kinds of demands of integrated data platform provide corresponding solution software package, the complete application management middleware of using towards the power scheduling integrated data platform is provided, the opening of setting up application layer.Make " plug and play " of application software become the target that can realize.
Layer 6 is the data exhibiting layer.This layer provides complete data exhibiting services package, and the software according to the selected front end data of customer demand represents simultaneously according to customer demand determination data ways of presentation, carries out the exploitation of data exhibiting.
To the distinctive characteristic of accident of high-tension apparatus, through analyzing the insulation characterisitic and the failure mechanism of high-tension apparatus, system of the present invention also comprises transformer high-voltage equipment on-line monitoring subsystem.
Said subsystem can be divided into three major types on function: insulating monitoring unit, isolating switch online detection unit, transformer oil gas monitoring means.
Repair based on condition of component part in the system according to the invention through obtaining the various crucial information datas that detect with treatment facility, is carried out analysis-by-synthesis and judgement to equipment state, thereby management and decision-making foundation is provided, and is a kind of self-adapting intelligent system of dynamically interactive type.Native system is collected the state parameter information of power equipment through the repair based on condition of component comprehensive platform; Set up diagnosis and use database; Information is processed and handled; The integrated application the whole bag of tricks possibly potential fault carry out rational analysis to equipment, and equipment state is carried out state estimation, for selecting reasonably to overhaul strategy decision support is provided.Native system has self-learning function, producers and managerial personnel's shareable data base resource and diagnostic knowledge base resource and diagnostic result.
Major technique below in Device Diagnostic, having adopted and method:
1) conventional insulation of electrical installation diagnostic method
2) based on the artificial neural network diagnostic method
3) based on the reasoning diagnostic techniques of citing a precedent
4) technological based on the comprehensive diagnos of rough set method
On this basis, the design of native system and perfect Device Diagnostic and administration module once:
1) oil immersion Device Diagnostic module: the fault diagnosis of transformer, reactor
2) insulation of charger diagnostic module: GIS and SF6 and architectural characteristic diagnosis
3) mutual inductor Device Diagnostic module: the insulation diagnosis of equipment such as current transformer, CVT
4) miscellaneous equipment diagnostic module: the diagnosis of equipment such as disconnector, dry reactor, external insulation, lightning arrester
5) Diagnostic parameters configuration module: modules such as threshold value management and the automatic generation of threshold value
6) pre-service and early warning module: can in the station, provide the early warning sign according to online data, and trigger remote diagnostic
7) Device Diagnostic instrument: mathematical statistics, artificial neural network, the reasoning etc. of citing a precedent
8) trend prediction instrument: select for use methods such as mathematical statistics, time series analysis to provide corresponding development trend of equipment and conclusion thereof
9) state evaluation module: provide the equipment complex evaluation according to off-line, online, charged detection and information such as patrol and examine
10) risk evaluation module: from safety, cost, operation, available rate, social reputation and environmental protection equal angles, confirm that equipment faces with its risk that possibly cause.
11) maintenance decision module: according to maintenance character and coverage, maintenance is divided into four types: A, B, C class are interruption maintenances, and the D class is an interruption maintenance not.According to the last equipment state evaluation result, consider the equipment risk evaluation factor, formulate different maintenance strategies.
Beneficial effect
Online test section of the present invention can be reflected performance and the general level of the health of equipment under working voltage in real time, exactly; The timely operating latency defective of discovering device; Prevent that sudden accident from taking place; Effectively improve equipment operation level and reliability, reduce equipment failure rate, significantly reduce sudden accident; The blindness that minimizing equipment has a power failure test and keeps in repair, thus minimizing equipment makes plant maintenance science more because of the possibility of maintenance initiating failure, and prolong the equipment operation life-span; Significantly reduce power off time and test operation, improve the power supply reliability and the economy of electric system.
Repair based on condition of component part of the present invention can be practiced thrift a large amount of ME funds; Significantly reduce power off time and switching manipulation amount; Prolonged the equipment operation life-span, made plant maintenance science more; Improve power supply reliability, economy and the security of electric system; Continue, accurately reflect insulating property and the general level of the health of equipment under working voltage; Improve equipment operation level and reliability; The timely operating expansionary insulation defect of discovering device; Significantly reduce sudden accident.
The foundation of management system of the present invention and utilization; To impel on-line monitoring system from traditional sense isolated, static pilot system carry out the transition to the overall situation, networking, intelligentized comprehensive state monitoring, diagnosis and and service management system; This system is that the blindness, the minimizing that overcome periodic maintenance are overhauled number of times, reduce recondition expense, delayed the time between overhauls(TBO) to greatest extent; For the electric system operating administration is really realized repair based on condition of component, and then improve the operation rate of equipment and the safety of electrical network provides powerful technical support platform.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect and be easy to understand and understand, below further set forth the present invention.
A kind of on-line monitoring and repair based on condition of component management system; Distribute on the spot a series of digital integral intelligent monitoring means are installed; The state parameters such as insulation of real-time monitoring substation high-tension apparatus; Utilize the full digital communication of standing of on-the-spot industrial bus realization, control and manage all kinds of monitoring systems through the end administrative unit of standing, realization and distant place management system is mutual in the online monitoring data of collecting panoramaization.Management system can be estimated and analyze the health status of equipment; And relevant data merged; Set up high-tension apparatus operation and overhaul management data center, under unified integrated data platform, the user combines other productions and management system; The effective information of seamless extraction relevant device is realized status remote real time on-line monitoring and the diagnosis to high-tension apparatus, formulates plant maintenance and repair based on condition of component strategy.
Said system is layered distribution type data management and computer system, is specially:
The on-line monitoring mechanical floor: the intellectual monitoring unit is installed in the monitored equipment scene on the spot, uploads the state parameter of high-tension apparatus automatically, in real time through fieldbus networks; Monitoring target is transformer, CT, capacitive apparatus such as OY, lightning arrester, isolating switch, and formation insulated on-line monitoring, on off state on-line monitoring, the comprehensive on-line monitoring of transformer, office are placed on subsystems such as line monitoring, mutual group component layer distributed on line monitoring network.
The substation data network layer: transformer station's master-control room is a core with station end communication processor, necessary part for station end group plinth database (Substation Database, SDB), stand and hold Web server and communication processor.The end group plinth database of standing will directly be accepted to obtain depositing database in behind the valid data through certain calculating and screening from the site intelligent data of monitoring means on the spot.The end Web server of standing will can be implemented in on-the-spot to the station client database manage, on-site real-time data monitoring and functions such as telemonitoring and management.Communication processor is used for the Control on Communication of monitoring means in standing, data integration, stipulations are handled, and accepts the requirement from other servers, and transmits data to validated user.
Remote data center: the data and the information of all monitored equipments is gathered at this center; Set up converting station high voltage electrical apparatus remote condition monitoring, data analysis and diagnosis and equipment information management platform; For the operation maintenance and the management of high-tension apparatus provides service, also can be on-line monitoring technique data accumulation, information sharing, Research on Diagnosis, repair based on condition of component decision-making and provide support.
Integrated data platform is that total system provides a Distributed Application exploitation and running environment; Distributed Application exploitation is that upper layer application provides virtual, unified, extendible, as a to distribute development platform with running environment, and its feasible only triangular web able to programme changed the able to programme of multiple systems into.As far as upper layer application, Application and Development only relies on a series of DLL and the service that Distributed Application is developed and running environment is provided.The exploitation system of this layering tries hard to improve the efficient and the speed of application and development, has increased unitarity and analyticity and application open and maintainable of application code.Its major function is: complete information gathering; Multilayer distributes and moves; ADVANCED APPLICATIONS and expansion customizations thereof such as fault diagnosis, equipment evaluation, repair based on condition of component are provided; The local side data sharing is integrated; The movable equipment maintenance center.
Said high-tension apparatus on-line monitoring subsystem can be divided into three major types on function: insulating monitoring unit, isolating switch online detection unit, transformer oil gas monitoring means, specifically:
The insulating monitoring unit:
Be for satisfying the intelligent monitoring device that transformer station's high voltage equipment insulation on-line monitoring special requirement is developed.It accomplishes the collection and the calculating of data message on the spot, and the result is uploaded to station CMU.The groundwork that installs is: gather the voltage and current signal of institute's monitoring equipment, adopt the Fourier analysis method of optimizing, try to achieve its amplitude, phase place, and then obtain electric parameters such as required leakage current, Jie's damage and current in resistance property.
This device divides following components: high precision electric current transducer, programmable amplifying circuit, low-pass filter, A/D converter, digital signal processor, communication interface.
For capacitive apparatus, through high-precision sensor, FMU-C measure equipment end screen electric current amplitude and phase place and with the phase differential of reference source, the FMU-U unit record system voltage amplitude and phase place and with the phase differential of reference source.Through the amplitude and the phase differential of this two signal, can calculate the leakage current of capacitive apparatus, the electric capacity and the damage that is situated between.Insulation parameter for lightning arrester adopts same principle with measuring.
The isolating switch online detection unit:
Mainly be applicable to vacuum, SF
6, few oil or the different voltage level breaker of heavy wool three major types.Status monitoring to isolating switch divides two aspects: mechanical property monitoring and electric life monitoring.The mechanical property of isolating switch mainly comprises the state of gear train and energy storage motor.The monitoring of energy storage motor comprises a day energy storage number of times, single energy storage time.Shorten like the energy storage cycle, the single energy storage time is elongated, explains that then problem has appearred in accumulator system, as oil circuit or gas circuit leak, the energy storage motor not enough pipeline of exerting oneself is smooth etc.Mechanical vibration waveform and divide-shut brake coil current waveform when the monitoring of gear train comprises deciliter action.Bite, fracture, problem such as loosening appear in the at first down mechanical vibration " fingerprint ripple " under the isolating switch normal condition of record, isolating switch gear train, and its vibration event frequency and time can change; In addition, the change of deciliter action bump dynamics also directly influences the amplitude of vibration signal.Deciliter vibrational waveform that gear train is unusual and deciliter vibrational waveform of normal condition have obvious difference.The variation of isolating switch gear train also directly influences divide-shut brake coil current wave form varies.Divide-shut brake magnet coil current waveform distorts, elongated, the time-variance from coil electricity to the corresponding vibration incident of electric duration etc. all is the performance that there is potential faults in the isolating switch gear train.Through monitoring divide-shut brake magnet coil current waveform, isolating switch gear train and stored energy mechanism, has positive effect to finding the breaker mechanical potential faults.
Transformer oil gas and little water monitoring unit:
Oil dissolved gas and little water on-line monitoring system adopt the stratographic analysis principle, under the control of microprocessor, carry out the collection of gas, and data acquisition and processing, quantitative test and fault diagnosis realize six kinds of components in the transformer oil are detected.It can be directly installed on the transformer scene, and sampling automatically detects gas and Wei Shui in the oil automatically continuously.And the master-control room terminal computer can communicate with through wired or wireless mode, obtains in the oil real time data information of dissolving and little water.
Oil dissolved gas and little water monitoring unit are by forming based on several parts such as gas collecting module, gas separation module, gas detection and data acquisition module, atlas analysis modules.The gas collecting module realizes transformer oil gas separation function; In the gas separation module, gas stream is realized the multiple gases separation after chromatographic column, and the gas after the separation is in chromatographic detection system; Realization has the transformation of chemical signal to electric signal; Gas signal is uploaded to background monitoring system through communication port after by data collecting module collected, and this system can carry out the analytical calculation of collection of illustrative plates, can detect by the periodic on-line of confirming to dissolve H in the transformer oil
2, CO, CH
4, C
2H
2, C
2H
4, C
2H
6Content Deng full constituent gas.And judge whether to exist the latency fault through expert system, be hot fault or discharge property fault, and carried out sound and light alarm by the alarming value of setting.On-line monitoring system can in time send to each testing result on related personnel's mobile phone through SMS, is convenient in time recognize the transformer running status.
The station end central manage-ment unit (CMU communication processor) of said high-tension apparatus on-line monitoring subsystem is as the communication and the control hinge of the end network management of on-line monitoring subsystem station; Station level CMU collects from the real-time information of field monitoring unit, global semaphore unit and other smart machine; Simultaneously information is classified, screens, changes, stored, be stored in real-time data base respectively by the data type of gathering.And with different stipulations through different communication medium, transmit to control far away.Also be responsible for to transmit operational order, for example remote control, browse or parameter configuration etc. from main website and intellectual monitoring unit.Its major function is: manage the communication network in this transformer station, the duty of each monitoring means in control and the coordination station; The Monitoring Data of intelligent cell is on the spot collected in communication on the spot; Telecommunication is transferred to distant place system with Monitoring Data; Communication interface, multiple interfaces such as RS-485/RS-232/CAN/ Ethernet; Correspondence with foreign country all adopts isolation.Can carry out data communication with the smart machine of various different communication speed; Can support the data communication of IEC61850; Online data is handled, to processing, the analysis of field monitoring data, early warning; Based on the data and curves of WEB, data list, functions such as parameter configuration; The state indication shows each duty of intellectual monitoring unit on the spot in real time; Downwards: FMU is carried out data acquisition, management,, realize operations such as remote control, remote regulating, upwards: send main website with on the image data etc. to FMU according to transmitting the main website order; Self contains clock chip system, and power down such as definite value, parameter are not lost; When the power supply fault, CMU quits work, and running parameter is not lost, and when power up, system is from returning to normal operating conditions; Have reliable and stable operating mechanism, can realize two-shipper double-network redundant configuration etc.
Repair based on condition of component part in the system according to the invention through obtaining the various crucial information datas that detect with treatment facility, is carried out analysis-by-synthesis and judgement to equipment state, thereby management and decision-making foundation is provided, and is a kind of self-adapting intelligent system of dynamically interactive type.The function design of system mainly comprises several parts: the fault diagnosis of high-tension apparatus, state evaluation, risk assessment and maintenance decision suggestion.
First; Comprehensive diagnos: comprehensive diagnos comprises two parts of individual event diagnosis and whole diagnosis; The individual event diagnosis is diagnosed the routine test data and the diagnostic test data of equipment, and whole diagnosis comprises whole diagnosis of transformer and rough set diagnosis, provides corresponding diagnosis.
The individual event diagnosis is according to selected equipment, according to the status information of equipment that writes down in the system, carries out the diagnosis of running status according to the requirement of standard.It should be noted that: the checkup item that distinct device relates to can be different.The operation of whole diagnosis and individual event diagnostics classes seemingly, it mainly acts on is the substation equipment of confirming to be carried out equipment state diagnose.This action need is confirmed transformer station, device type and checkup item.It should be noted that: whole diagnosis is just to a kind of equipment of transformer, and the checkup item that can carry out has whole diagnosis and rough set diagnosis.Individual event tracing trouble conclusion is according to the difference of equipment, and content is different.Mostly the general diagnostic conclusion is normally, the value of being above standard, less than standard value, no datat or standard etc.The oil chromatography diagnosis in conjunction with the neural network and the inference method of citing a precedent, through first branch fault type and two steps of segmentation fault type, is confirmed final fault type on the basis of three ratios diagnosis.
The second, state evaluation: state evaluation is that the current state of equipment is judged, the equipment state grade is divided.State evaluation is to transformer, isolating switch summation current transformer equipment, and the state evaluation type of transformer is had off-line data evaluation and two kinds of online data evaluations, and isolating switch, current transformer equipment have only the off-line data evaluation.Appraisal of equipment is carried out dynamic evaluation and is combined with periodic evaluation, promptly obtain the equipment state amount at every turn after, according to quantity of state equipment is estimated.
After having selected the transformer evaluation object of needs assessment, fill in the initial information that evaluation needs, comprise evaluation personnel, test lot number, estimate type (on-line evaluation, evaluated off-line), different routine, diagnostic test lot number etc.After having selected the isolating switch object of needs assessment, fill in the initial information that evaluation needs, comprise the evaluation personnel, test the different routine of lot number, diagnostic test lot number etc.System's rule according to a preconcerted arrangement generates automatically estimates lot number.After having selected the current transformer object of needs assessment, fill in the initial information that evaluation needs, comprise the evaluation personnel, test the different routine of lot number, diagnostic test lot number etc.System's rule according to a preconcerted arrangement generates automatically estimates lot number.
The 3rd, risk assessment: risk assessment is index with the value-at-risk, takes all factors into consideration the probability three's of assets, loss of assets degree and device fails effect.Bonding state evaluation result, equipment failure case and device-dependent message on the basis of asset evaluation, loss of assets degree, the key element extent of damage and equipment failure rate, are divided the equipment risk class.
The 4th, the maintenance strategy: the foundation of integrated data platform, the system that makes can open a sluice gate real-time follow-up to the duty of operational outfit.When system detects equipment operation when unusual, system can adopt different multistage warning strategies to the agreement according to the distinct device characteristic: set can report to the police automatically when limit value or tentative diagnosis result need report to the police (end of standing) if Monitoring Data surpasses; Alarm threshold value can online modification; Type of alarm can be set flexibly, and warning message can directly send to distant place data center, again communication interface can be set, and is connected to automatically on related personnel's the communication apparatus.
The unit exception state is being carried out on the basis of inline diagnosis, the fundamental purpose that makes up repair based on condition of component platform and equipment management system is the running status of effective monitoring equipment, can carry out repair based on condition of component work to high-tension apparatus, for it provides the maintenance strategy.Equipment running status comprises the device history operation and experiences, moved factors such as time, operating load, environment, operation and maintenance situation.
The 5th, data management: converting equipment is in detail comprehensively set up archives, comprise equipment before putting into operation the detailed design data and put into operation after test data sheet data, defective failure logging, the operating maintenance record of manual work.
The basic data administration module is the static data administration module of equipment, mainly comprises: converting equipment machine account, equipment nameplate parameter, the raw information of dispatching from the factory, equipment resume, characteristic information management.
Unit account of plant, delivery test data, equipment nameplate parameter are extracted through exchanges data by distant place data center platform.
Converting equipment service data administration module is the dynamic data management module of equipment; Mainly to repairing examination data and service data, repair the examination data module and comprise that equipment repaiies trial record, equipment and disappear and lack record, unit exception ruuning situation record, failure message, bad running environment, the equipment chronicle of events, equipment family quality record and manage.
Data center's platform extracts through exchanges data these data from a distant place, and carries out the correctness filtration treatment, can introduce the confidence level notion, and the examination data qualification of repairing of history is called, and can be used as the basic data of equipment state diagnosis.The context of data is configured according to station end data platform monitoring equipment, and the end online monitoring data that realizes standing judges tentatively and early warning that data center combines the comprehensive diagnos of realization equipment states such as off-line testing, historical data in the distance.System is through intuitively showing the historical development characteristics of online data like curve form, whether help the professional to analyze power equipment has fault in development.This module is carried out analysis and evaluation according to device status data and criterion to the time of day and the variation tendency of equipment.Main method is threshold decision and trend analysis, shows with various ways such as report, chart, curves.
The 6th, KBM: system provides the maintenance function to rule set, fault collection, sign collection and neural network sample set.This module comprise the various professional codes relevant regulations of (comprise and be not limited to preventive trial rules, equipment state and estimate guide rule, equipment risk evaluation guide rule etc.), device fabrication producer technical indicator, operating experience, expertise comprehensive with quantize, based on the failure message statistical study on a large scale.Represent knowledge with the production knowledge representation method.Comprise: norm standard original typing maintenance, norm standard data, diagnostic criteria and self-defined standard, historical case data, expert experience base typing maintenance etc.
The process of improving of system knowledge base is dynamically progressive.Analysis and summary through to historical data can promote the management level to equipment.Be based upon equipment state overhauling process optimization on the historical data information can be used as the equipment control knowledge base with part.
The 7th, system management: the system management part comprises that mainly power management, the registration of device data switch, monitoring information configuration management etc. are composed by System Operation User management, system.
More than show and described ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the instructions just explains principle of the present invention; Under the prerequisite that does not break away from spirit and scope of the invention, the present invention also has various changes and modifications, and these variations and improvement all fall in the scope of the invention that requires protection.The present invention requires protection domain to be defined by appending claims and equivalent thereof.
Claims (3)
1. on-line monitoring and repair based on condition of component management system; It is characterized in that; Be layered distribution type data management and computer system; Towards a plurality of transformer stations high-tension apparatus, adopt the differentiated control system form of multiple servers, comprise online monitoring equipment layer, substation data network layer and remote data center.
2. on-line monitoring according to claim 1 and repair based on condition of component management system; It is characterized in that; Comprise transformer high-voltage equipment on-line monitoring subsystem, on function, can be divided into three major types: insulating monitoring unit, isolating switch online detection unit, transformer oil gas monitoring means.
3. on-line monitoring according to claim 1 and repair based on condition of component management system; It is characterized in that the repair based on condition of component of said system is partly collected the state parameter information of power equipment through the repair based on condition of component comprehensive platform, set up diagnosis and use database; Information is processed and handled; The integrated application the whole bag of tricks possibly potential fault carry out rational analysis to equipment, and equipment state is carried out state estimation, for selecting reasonably to overhaul strategy decision support is provided.
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| CN2011102722761A CN102436226A (en) | 2011-09-14 | 2011-09-14 | Online monitoring and condition maintenance management system |
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| CN2011102722761A CN102436226A (en) | 2011-09-14 | 2011-09-14 | Online monitoring and condition maintenance management system |
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