CN101859409A - Power transmission and transformation equipment state overhauling system based on risk evaluation - Google Patents
Power transmission and transformation equipment state overhauling system based on risk evaluation Download PDFInfo
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Abstract
The invention discloses a power transmission and transformation equipment state overhauling system based on risk evaluation. The system consists of a software supporting module, an equipment information collecting module, an equipment state diagnosing and evaluating module, an equipment risk evaluating and analyzing module, an equipment overhauling strategy auxiliary decision making module and an evaluating and checking module. The six modules are sequentially connected and mutually supported from bottom to top to form a pyramid type decision making flow path. The invention implements one set of complete system on the data information and equipment maintenance of a power network, makes a dynamic, timely, high-reliability and economic maintenance plan for the power transmission and transformation equipment under the condition of carrying out quantitative calculation on risks, greatly reduces the unnecessary maintenance, decreases the equipment damage caused by maintenance, saves the maintenance and management cost, and enhances the reliability of the power network.
Description
Technical field
The present invention relates to power transmission and transformation equipment state evaluation and decision-making field, specifically be based on the power transmission and transformation equipment state overhauling system of risk assessment.
Background technology
Fast development along with electric system, the continuous expansion of system scale, the quick growth of number of devices in the system traditional is not done prophylactic repair pattern that assessment directly carries out the clean cut formula because the repair time is fixed to power transmission and transformation equipment state, has the drawback that maintenance is not enough and maintenance is superfluous.Maintenance is not enough, should repair equipment and can not in time repair, and causes the power transmission and transforming equipment failure rate to improve; Maintenance is superfluous, causes a large amount of human and material resources wastes, and excessively maintenance causes the irreversible damage of equipment that shortened equipment life, and unnecessary maintenance strengthens the equipment failure risk.In view of the above, the Gu Ding maintenance pattern development need of incompatibility grid equipment maintenance and economical operation more and more.Repair based on condition of component is a kind of dynamic, a kind of maintenance pattern according to the equipment real-time status, can be according to the preceding Back ground Information of putting into operation of equipment, information in service, fault and accident conditions, test (prerun) data, same category of device family reference information and other relevant information and real time on-line monitoring data diagnosis status of equipment, formulate a kind of maintenance mode of flexible maintenance mode, the equipment of accomplishing " should be repaiied required; it is required good to repair ", not only can save maintenance cost widely, and can reduce the equipment failure that causes because of unnecessary maintenance, improve maintenance speed and repair quality, improve the economy of mains supply reliability and operation of power networks.
Present stage, domestic electric system is used for the decision system of repair based on condition of component work just the reference value of risk assessed value as the formulation turnaround plan, the necessary link of really it not being carried out repair based on condition of component as electric system; The risk assessment value that is used for electric system equipment is not to calculate and just adopt empirical value according to objective, convictive computing method.Because lack the precise information of risk evaluation model and quantitative risk assessment index, make value-at-risk depend on evaluator's personal experience, the risk assessment value that draws causes risk assessment to lose efficacy because of the personal experience because the factor and individual subjective factor proportion is big easily, causes the not enough or maintenance redundancy of maintenance.
Summary of the invention
The present invention is in order to overcome the deficiencies in the prior art, provide a cover at the repair based on condition of component management system of power transmission and transforming equipment based on risk, comprehensive equipment dependability and the economy weighed, to improve the specific aim and the science of maintenance, accomplish this in the constant prerequisite decline low-dimensional of support equipment reliability level, the power transmission and transformation equipment state overhauling system based on risk assessment of the economy of raising system operation.
The technical scheme that the present invention solves the problems of the technologies described above is:
Power transmission and transformation equipment state overhauling system based on risk assessment, by software supporting module, facility information collection module, equipment state diagnostic evaluation module, equipment risk evaluation analysis module, overhaul of the equipments strategy aid decision making module, evaluation and evaluation module totally six modules form, six modules connect successively, rely on mutually and constitute the pyramid decision process from bottom to top.
1. software supporting module for the realization based on the repair based on condition of component theory of risk assessment provides basis of reality, is with the prerequisite of computer realization based on the actual maintenance job of repair based on condition of component job guide of risk assessment.
2. the facility information collection module is the basis of total system, with the data message that receives by analysis, filtration, extraction, conversion, classification and storage, form the data message of required form, for total system provides data source.
3. equipment state diagnostic evaluation module is wherein of two nucleus modules in the total system.It has collected on the basis of information data in the information gathering module, by equipment fault diagnosis model and the equipment state evaluation guide rule set up the equipment real-time running state is estimated, evaluation result passes to the risk assessment analysis module as the risk assessment basis.
4. the equipment risk evaluation analysis module is another piece of two nucleus modules in the total system.This module is on the condition diagnosing module basis in front module, to the calculating that becomes more meticulous of equipment value-at-risk, draws the equipment risk class by device security risk model and risk assessment rules.
5. overhaul of the equipments strategy aid decision making module.On equipment state evaluation result that draws in front and the equipment risk class basis, overall equilbrium security and economy to the power transmission and transformation repair based on condition of component plan make a strategic decision.
6. estimate with evaluation module to the adaptability of the validity of security risk assessment system, risk prevention strategy, target realization degree, job performance etc. are assessed, determine the effect that risk assessment work obtains.
Above-mentioned software supporting module for the realization based on the repair based on condition of component theory of risk assessment provides basis of reality, is with the prerequisite of computer realization based on the actual maintenance job of repair based on condition of component job guide of risk assessment.From carrying out state evaluation and risk assessment to making a strategic decision at last, whole process not only relates to a plurality of different systems in the electric system, but also involves a lot of different department and personnel.Be thereby that data interaction or work management all need to utilize now the computer technology of development that whole decision-making work is assisted to reach the target of raising the efficiency with accuracy.Carry out the engineering software of practicability, require the software interface close friend, simple to operate, meet field personnel's operating habit.Software need possess good stable and expandability, the exploitation that the system of being convenient to is follow-up.
The said equipment information gathering module, other application systems are carried out interface between standard data interface that provides by system and enterprise, make existing technical supervision system in the electrical network, produce mis system, the equipment account that the SCADA system obtains about power transmission and transforming equipment, historical defective, family's defective is collected, the tabulating equipment preceding Back ground Information that puts into operation, information in service, fault and accident conditions, test (prerun) data, same category of device family reference information, the electrical network network topology, flow data, the method of operation, prediction load curve and other relevant information are for the data basis is established in the state evaluation and the risk assessment of equipment.Information module also can carry out manual typing work simultaneously, satisfies daily data and other data typing needs of patrolling and examining generation.System's full detail can carry out Unit account of plant, Back ground Information, historical defective, equipment failure statistical conditions, maintenance strategy, estimate inquiries such as guide rule, operating process by retrieval, can obtain data by selecting transformer station or unit; Can revise equipment fault diagnosis model, device security risk model, state evaluation guide rule and risk assessment rules etc.
The said equipment condition diagnosing evaluation module comprises status monitoring early warning module.Set up the early warning threshold values, the out-of-limit issue early warning information of system's service data threshold values.The state evaluation model of power transmission and transforming equipment is set up in utilization based on the method for evaluating state of equipment deficiency classification.Method for evaluating state is the define equipment defect index at first, by the Inversion Calculation to former years equipment deficiency index and fault data, obtains the mathematical relation between probability of equipment failure and the equipment deficiency index then.Except considering to be subjected to the influence of the current state of equipment self, also equipment self and outside factor are also taken into account simultaneously.With the transformer is example, and its operation time limit, the number of times that stands short circuit and overladen time, reasons such as the weather conditions when moving in addition all will produce certain influence to the probability that it may break down.The defect system index number evaluation method is a kind of based on equipment deficiency, take all factors into consideration simultaneously the probability of malfunction evaluation method of the influence of equipment self factor and external environmental factor again, can the apparatus for establishing current state and its probability of malfunction between incidence relation more accurately.Power transmission and transforming equipment is carried out defect system, be actually the defect index of determining power transmission and transforming equipment according to various influence factors.The power transmission and transforming equipment of choosing is carried out state evaluation according to the guide rule standard, for the basis is carried out in risk assessment.
The said equipment risk assessment analysis module, set up the security risk model, the utilization probability risk, lack restore electricity time and power supply expense, the person and environmental loss equivalent risk index of time, the scarce expense that disappears, servicing time, maintenance cost, equipment failure and set up the risk assessment quantitative indices system that a cover meets the power transmission and transforming equipment characteristics by offseting, the equipment that carries out condition diagnosing is carried out the smart maintenance risk assessment that quantizes, draw the maintenance value-at-risk.The maintenance value-at-risk comprises equipment loss risk, personal environmental risk, system loss risk and social loss's risk.By the loss of the maintenance cost measurement equipment after device damage risk; According to corresponding national standards personal environmental risk is carried out the consequence classification; By self-defining severity index, out-of-limit from voltage, trend is out-of-limit, voltage unstability and four angles of cascading failure are weighed because the weakening deciding degree system loss risk to the strong degree of system that equipment failure causes; Adopt the method for electrogenesis ratio to determine social loss's risk that equipment failure causes.Each value-at-risk is last to be that the money-form of unit represents with ten thousand yuan all.
The said equipment overhauls tactful aid decision making module, carries out multiobjectives decision according to risk indicator, defines the priority and the time of defective maintenance of equipment, determines maintenance grade and content according to the equipment state index.Give corresponding weights according to user's request to equipment state, equipment risk, maintenance net proceeds, maintenance net income ratio, obtain overall target, the aid decision making module is by comprehensively comparing this index, the multiple corresponding comprehensive measure that reduces device security overall risk and maximize revenue is proposed, realize the overall equilbrium between safety, usefulness and the cost, guaranteeing electrical network, equipment and personal safety and satisfying under the prerequisite of environmental protection requirement, optimize asset management, balance reliability and economy reach the overall equilbrium optimum.
Above-mentioned evaluation and evaluation module, carry out in the process in security risk assessment work, the adaptability of the validity of security risk assessment system, risk prevention strategy, target realization degree, job performance etc. are assessed, determine the effect that risk assessment work obtains, the problem that exists in the searching work proposes the measure and the suggestion of Continual Improvement.
The present invention compared with prior art has following advantage:
1. the data system is more perfect.Power transmission and transforming equipment data management system based on integrated data platform: data are carried out data acquisition by the standard data interface that risk evaluating system provides, can obtain and comprise already used production management system in the electrical network, monitor system, data such as SCADA system and on-line monitoring system and manual typing, content relates to facility planning, design, make, put into operation, operation, safeguard, maintenance, test, information such as same category of device family data, total data is used consolidation form, sets up object ID, post, corresponding relation in twos between the authority can carry out inquiring about with individual equipment or in transformer station's mode.
2. the data model of power transmission and transformation equipment state risk reliability evaluation and quantification are calculated.Take all factors into consideration preventive trial, patrol and examine, many-sided factor apparatus for establishing state risk evaluation model such as history log, the method of creationary utilization Inversion Calculation obtains the comprehensively real-time index of power transmission and transforming equipment probability of malfunction, realizes the quantification scientific evaluation to the equipment state risk.Accomplish deduction of points evidence-based reasonable following, avoid the influence of factor and individual subjective factor, make that the state evaluation result is objective more to have cogency more judged result.The online monitoring data of technical supervision data such as bonding apparatus reliability data, daily supervision/detection/test and equipment is diagnosed the facility information of collecting, and determines the health/malfunction and the development and change trend of equipment itself; In conjunction with the equipment risk evaluation model of aspect risk indicator foundation such as safety, environment, benefit and political position, rationalize according to financial cost at last and make maintenance decision based on monetary index.
3. based on the systematization analysis and the science aid decision-making method of probability risk assessed value: slave unit loss risk, personal environmental risk, system loss risk and four aspects of social loss's risk propose the multiple corresponding comprehensive measures that reduce the device security overall risk, reached the overall equilbrium between safety, usefulness and the cost, guaranteeing electrical network, equipment and personal safety and satisfying under the prerequisite of environmental protection requirement, optimize asset management, balance reliability and economy reach the overall equilbrium optimum; Regularly carry out computational analysis, performance analysis maintenance behavior.Carry out the optimization that power transmission and transforming equipment keeps in repair based on advanced person's Risk Theory, realize ensureing that the maintenance cost under the constant prerequisite of reliability minimizes, realized the scientific of aid decision making.Be used to instruct work such as power transmission and transforming equipment type selecting, state maintenance, technological transformation overhaul, interruption maintenance, operational management and power grid construction.Broken the present situation that electric system " equipment " and " system " fight separately.
The present invention has implemented a whole set of entire flow to the data message and the plant maintenance of electrical network, has avoided the repeated use of different dimensional protecting system in the electrical network, has guaranteed electric network information management.What the computing method by equipment fault diagnosis model and utilization quantification drew that equipment state estimates guide rule and equipment risk evaluation must be through link, for power transmission and transforming equipment formulate dynamically, timely, high reliability and economic maintenance schedule, significantly reduce unnecessary maintenance, the equipment damage that reduction causes because of maintenance, save maintenance and handling cost, improve electric network reliability.
Description of drawings
Fig. 1 the present invention is based on the power transmission and transformation equipment state overhauling system synoptic diagram of risk assessment.
Fig. 2 the present invention is based on the concrete formation synoptic diagram of the power transmission and transformation equipment state overhauling system of risk assessment.
The schematic flow sheet of Fig. 3 state evaluation of the present invention.
The formation synoptic diagram of Fig. 4 risk evaluating system of the present invention.
Fig. 5 multiple goal decision in the face of risk of the present invention criterion synoptic diagram.
Embodiment
Below in conjunction with drawings and Examples the present invention is described in detail.Present embodiment is that prerequisite is implemented with the technical solution of the present invention, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
As shown in Figure 1, present embodiment comprises software supporting module, facility information collection module, equipment state diagnostic evaluation module, equipment risk evaluation analysis module, overhaul of the equipments strategy aid decision making module, evaluation and evaluation module.Wherein the software supporting module is with the prerequisite of computer realization based on the actual maintenance job of repair based on condition of component job guide of risk assessment for the realization of whole repair based on condition of component work provides the supplementary means of a practicability; The facility information collection module is the basis of whole aid decision-making system, obtains the data of total system from data platform, for whole evaluation and evaluation work provide data source; Equipment state diagnostic evaluation module is used the state evaluation model of setting up power transmission and transforming equipment based on the method for evaluating state of equipment deficiency classification, and equipment state is diagnosed, and the result is passed to the risk assessment analysis module; The equipment risk evaluation analysis module carries out Risk Calculation, quantitative Analysis equipment value-at-risk by assessment risk indicator and decision-making index and condition diagnosing result; Overhaul of the equipments strategy aid decision making module is worth the maintenance type according to existing condition diagnosing result in front and risk assessment, formulates counter-measure; Estimate and evaluation module, the effect that work obtains according to repair based on condition of component is carried out performance appraisal and improvement at last.
Fig. 2 has provided in the concrete example formation based on the power transmission and transformation equipment state overhauling system of risk.
The software supporting module for the realization based on the repair based on condition of component theory of risk assessment provides basis of reality, is with the prerequisite of computer realization based on the actual maintenance job of repair based on condition of component job guide of equipment risk evaluation.The software supporting module is that modules such as equipment state diagnostic evaluation, equipment risk evaluation analysis and overhaul of the equipments strategy aid decision making are built the unified platform, realizes that data support and the evaluation decision function.The condition diagnosing evaluation not only relates to a plurality of different systems in the electric system with the risk assessment analytical work, and relate to different production and administrative authority and personnel, need complete, standard, unified data interaction interface, advanced memory technology is provided, be convenient to routine call, inquiry and modification, can provide the platform of information input and storage, for repair based on condition of component work provides convenient, computer implemented method efficiently.As the engineering software of practicability, require the software interface close friend, simple to operate, meet field personnel's operating habit.Software need possess good stable and expandability, the exploitation that the system of being convenient to is follow-up.Program possesses good visualization function, and various ways of presentation such as figure, form can be provided, and realizes the computerize of overhaul management.
The facility information collection module comprises two parts function: data management and system maintenance.Data management is primarily aimed at repair based on condition of component and the risk assessment desired data manages and safeguards.The demand data of whole system relates to a plurality of systems such as producing mis system, technical supervision system, SCADA/EMS system, electrical equipment online monitoring center, should possess the function of artificial importing data simultaneously.Data such as the data that extract comprise machine account, move, repair examination, defective, test, prerun data, on-line monitoring are that elementary cell is obtained data by transformer station in evaluating system.Data are carried out data acquisition by the standard data interface that system provides, synchronously real-time Monitoring Data, historical test data and Equipment Foundations data.The data standard interface possesses controllability, and system can carry out database synchronization (comprising synchronous zero-time, synchronizing frequency, synchronization mechanism etc.) according to user's demand.Functions such as the renewal of the guide rule of main completion status evaluation of system maintenance and risk assessment and maintenance, system's initial value design.
Equipment state diagnostic evaluation module exists between equipment deficiency and the fault and gets in touch more closely as shown in Figure 3.Normal conditions, fault be defective As time goes on inside and outside because of effect under gradually the development inevitable outcome.Defect index is the parameter that is used to reflect transformer (reactor) defect rank and the order of severity, and numerical value is big more, shows that defective is serious more, and corresponding failure rate is high more.With the transformer is example, and the transformer defect rank is divided into zero defect, general defective, major defect and critical defective level Four, and the pairing basic defect index of each defect rank is respectively 0,1,2 and 3.According to the Fundamentals of classification defect index is finely tuned then, if major defect or critical defective then also will further be finely tuned according to the additive factor of classification.So-called Fundamentals are to determine the topmost foundation of transformer defect rank and defect index, mainly comprise the day to day tests data and make an inspection tour the result.Additive factor has then been taken all factors into consideration the combined influence of other factors, comprises historical data, environmental factor and the human factor of diagnostic test data, transformer itself.After the effect of having taken all factors into consideration these factors, draw the final defect index of transformer at last, utilize the defect index-failure rate model built up then, the failure rate of estimation transformer is for state evaluation and maintenance provide foundation.
The equipment risk evaluation analysis module, set up the risk assessment quantitative indices system that a cover meets the power transmission and transforming equipment characteristics consequence that equipment failure causes is quantized in detail, slave unit loss, personal environmental loss, four angles of system loss and social loss are carried out system and comprehensively calculating.The upkeep cost of equipment self risk after by device damage is used for weighing, and personal environmental risk is carried out the consequence classification then according to corresponding national standards.System risk is by self-defining severity index, and is out-of-limit from voltage, trend is out-of-limit, voltage unstability and four angles of cascading failure weigh because the weakening to the strong degree of system that equipment failure causes.The social risk that equipment failure causes then adopts the method for electrogenesis ratio.
Because the user is different with acceptable degree to the preference of risk, risk indicator should be as the supplementary means of maintenance decision.According to the decision in the face of risk theory, use risk indicator and can provide corresponding decision recommendation the plan of maintenance and the mode of maintenance.Risk can't be determined the content of maintenance according to the size of risk indicator as a composite index.Therefore in overhaul of the equipments strategy aid decision making module, carry out multiobjectives decision, define the priority and the time of defective maintenance of equipment, determine maintenance grade and content according to the equipment state index according to risk indicator.The user can give corresponding weights to equipment state, equipment risk, maintenance net proceeds, maintenance net income ratio according to the demand of oneself when carrying out the multiple goal decision in the face of risk, and then obtain overall target, overhaul of the equipments strategy aid decision making module provides the complementary suggestion of maintenance decision by this index is comprehensively compared.The bonding state evaluation result obtains final maintenance content and auxiliary suggestion with reference to national respective standard.
Claims (7)
1. based on the power transmission and transformation equipment state overhauling system of risk assessment, it is characterized in that, by software supporting module, facility information collection module, equipment state diagnostic evaluation module, equipment risk evaluation analysis module, overhaul of the equipments strategy aid decision making module, evaluation and evaluation module totally six modules form, six modules connect successively, rely on mutually and constitute the pyramid decision process from bottom to top;
1) software supporting module for the realization based on the repair based on condition of component theory of risk assessment provides basis of reality, is to be used to instruct the prerequisite of actual maintenance job based on the repair based on condition of component work of risk assessment;
2) the facility information collection module is the basis of total system, with the data message that receives by analysis, filtration, extraction, conversion, classification and storage, form the data message of required form, for total system provides data source;
3) equipment state diagnostic evaluation module is wherein of two nucleus modules of total system, it has collected on the basis of information data in the information gathering module, by equipment fault diagnosis model and the equipment state evaluation guide rule set up the equipment real-time running state is estimated, evaluation result passes to risk evaluation module as the risk assessment basis;
4) the equipment risk evaluation analysis module is another piece of two nucleus modules of total system, this module is on equipment state diagnostic evaluation module basis, to the calculating that becomes more meticulous of equipment value-at-risk, draw equipment value-at-risk and risk class by device security risk model and risk assessment guide rule;
5) on the equipment state evaluation result that draws in front of overhaul of the equipments strategy aid decision making module and the equipment risk class basis to the power transmission and transformation repair based on condition of component plan make a strategic decision;
6) estimate with evaluation module the adaptability of the validity of security risk assessment system, risk prevention strategy, target realization degree, job performance etc. are assessed, determine the effect that risk assessment work obtains.
2. the power transmission and transformation equipment state overhauling system based on risk assessment according to claim 1, it is characterized in that, described software supporting module, for the realization based on the repair based on condition of component theory of risk assessment provides basis of reality, be with the prerequisite of computer realization based on the actual maintenance job of repair based on condition of component job guide of risk assessment, from carrying out state evaluation and risk assessment to carrying out last maintenance decision, whole process not only relates to a plurality of different systems in the electric system, but also involve a lot of different department and personnel, be thereby that data interaction or work management all need to utilize now the computer technology of development that whole decision-making work is assisted to reach the target of raising the efficiency with accuracy, carry out the engineering software of practicability, requirement software interface close friend, simple to operate, the operating habit that meets the field personnel, software need possess good stable and expandability, the exploitation that the system of being convenient to is follow-up.
3. the power transmission and transformation equipment state overhauling system based on risk assessment according to claim 1, it is characterized in that, described facility information collection module, other application systems are carried out interface between standard data interface that provides by system and enterprise, make existing technical supervision system in the electrical network, produce mis system, the equipment account that the SCADA system obtains about power transmission and transforming equipment, historical defective, family's defective is collected, the tabulating equipment preceding Back ground Information that puts into operation, information in service, fault and accident conditions, the prerun test figure, same category of device family reference information, the electrical network network topology, flow data, the method of operation, prediction load curve and other relevant information are for the data basis is established in the state evaluation and the risk assessment of equipment.
4. the power transmission and transformation equipment state overhauling system based on risk assessment according to claim 1, it is characterized in that, described equipment state diagnostic evaluation module comprises status monitoring early warning module, set up the early warning threshold values, the out-of-limit issue early warning information of system's service data threshold values, the state evaluation model of power transmission and transforming equipment is set up in utilization based on the method for evaluating state of equipment deficiency classification, method for evaluating state is the define equipment defect index at first, by Inversion Calculation to former years equipment deficiency index and fault data, consider equipment self factor and external action simultaneously, obtain the mathematical relation between probability of equipment failure and the equipment deficiency index, defect system index appraisal procedure is a kind of based on equipment deficiency, take all factors into consideration simultaneously the probability of malfunction evaluation method of the influence of equipment self factor and external environmental factor again, can the apparatus for establishing current state and its probability of malfunction between incidence relation more accurately, power transmission and transforming equipment is carried out defect system, be actually the defect index of determining power transmission and transforming equipment according to various influence factors, the power transmission and transforming equipment of choosing is carried out state evaluation according to the guide rule standard, for the basis is carried out in risk assessment.
5. the power transmission and transformation equipment state overhauling system based on risk assessment according to claim 1, it is characterized in that, described equipment risk evaluation analysis module, set up the security risk model, the utilization probability risk, lack the time by offseting, scarce expense disappears, servicing time, maintenance cost, equipment failure restore electricity time and power supply expense, the person and environmental loss equivalent risk index are set up the risk assessment quantitative indices system that a cover meets the power transmission and transforming equipment characteristics, the maintenance value-at-risk comprises the equipment self risk, person environmental risk, system risk and social risk, the equipment that carries out condition diagnosing is carried out the smart maintenance risk assessment that quantizes, draw the maintenance value-at-risk; By the loss of the maintenance cost measurement equipment after device damage risk; According to corresponding national standards personal environmental risk is carried out the consequence classification; By self-defining severity index, out-of-limit from voltage, trend is out-of-limit, voltage unstability and four angles of cascading failure are weighed because the weakening deciding degree system loss risk to the strong degree of system that equipment failure causes; Adopt the method for electrogenesis ratio to determine social loss's risk that equipment failure causes.
6. the power transmission and transformation equipment state overhauling system based on risk assessment according to claim 1, it is characterized in that, described overhaul of the equipments strategy aid decision making module, carry out multiobjectives decision according to risk indicator, define the priority and the time of defective maintenance of equipment, determine maintenance grade and content according to the equipment state index, according to user's request to equipment state, the equipment risk, the maintenance net proceeds, the maintenance net income ratio is given corresponding weights, obtain overall target, the aid decision making module is by comprehensively comparing this index, the multiple corresponding comprehensive measure that reduces device security overall risk and maximize revenue is proposed, realize safety, overall equilbrium between usefulness and the cost, guaranteeing electrical network, equipment and personal safety are also satisfied under the prerequisite of environmental protection requirement, optimize asset management, balance reliability and economy reach the overall equilbrium optimum.
7. the power transmission and transformation equipment state overhauling system based on risk assessment according to claim 1, it is characterized in that, described evaluation and evaluation module, carry out in the process in security risk assessment work, the adaptability of the validity of security risk assessment system, risk prevention strategy, target realization degree, job performance etc. are assessed, determine the effect that risk assessment work obtains, the problem that exists in the searching work proposes the measure and the suggestion of Continual Improvement.
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| CN201010181907A Pending CN101859409A (en) | 2010-05-25 | 2010-05-25 | Power transmission and transformation equipment state overhauling system based on risk evaluation |
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