KR101329395B1 - Power plant equipment management system and control method for thereof - Google Patents

Abstract

The present invention relates to a power equipment management system and a control method thereof. The purpose of the present invention is to provide the power equipment management system capable of evaluating risk and analyzing reliability and the control method thereof. The power equipment management system and the control method thereof include a power operation management part, a power reorganization part, a reliability analysis part, a reorganization planning part. [Reference numerals] (106) Work order management unit;(310) Generation plan management unit;(320) Generation performance management unit;(330) Generation stoppage management unit;(340) Daily operation status management unit;(350) Emergency failure response countermeasure management unit;(360) Power system information management unit;(370) Performance and combustion test management unit;(380) Emergency situation and SOP management unit;(390) LTTE management unit;(AA,BB) Reliability analysis by equipment;(CC) Prevention check, repair standard determination;(DD) Daily generation progress;(EE) Monthly generation progress;(FF) Generation progress synchronization (PPMIS);(GG) Power plant status management unit;(HH) Planned prevention stoppage;(II) Operation preliminary overdue stoppage;(JJ) Daily repair meeting;(KK) Repair status, replacement driving/periodical test, operation status;(LL) Daily damage and gain status;(MM) Generation progress, unit cost management, operation status, combustion status, environmental equipment management, original water usage, pure water usage, Limestone usage, Lime purification facility operation status, coal inventory status, unloading status;(NN) Emergency failure response countermeasure establishment;(OO) Emergency failure response countermeasure execution status;(PP) Dispatch news;(QQ) Supply capacity;(RR) Market operation;(SS) Performance test result management;(TT) Combustion test result management;(UU) SOP input, setting;(VV) SOP check, train;(WW) Periodical no-accident driving time;(XX) LTTF history

Description

Power plant equipment management system and control method

The present invention relates to a power plant management system and a control method thereof, and more specifically, the maintenance work management standardizes the maintenance work procedure, so that maintenance work can be managed by the same procedure for all maintenance work. It is possible to design the cost of maintenance work by linking information with Enterprise Resource Planning (ERP), accounting and asset processing, and systematic maintenance history management by standardizing facility classification system and code classification system. The power generation operation management unit is linked with the real-time operation information system (PIS) and the tag number, so that the reliability analysis and risk assessment can be performed based on the real-time operation information. It is about.

In order to generate electricity by fueling a power plant, a large number of unit facilities are required. If the power generation is stopped due to a unit failure, a significant financial loss is required, thus minimizing such financial losses. To do this, systematic maintenance of the unit is absolutely necessary. Conventionally, maintenance management of unit facilities is performed by using a maintenance management function of a computerized maintenance management system (CMMS) or an enterprise resource planning system (ERP).

However, in the conventional computer-based maintenance management system (CMMS) or enterprise resource planning system (ERP), the maintenance history is managed at a simple record level, and it takes a lot of time to establish a quick and accurate maintenance plan, and based on reliability and risk It is difficult to establish a systematic maintenance plan by analyzing the condition of facilities.

Although state-based maintenance management technology based on reliability analysis and risk assessment is being applied to some overseas power generation facilities, the facility classification system and various code classification systems are the facility classification system and the various code classification system of the computer-based maintenance management system (CMMS). There is a limit in systematic maintenance management because it is difficult to share accurate facility information because it is different from the system.

In addition, due to the large scale of damage in case of failure or stoppage due to long-term operation of the power plant, time-based maintenance (TBM), such as reinforcement of deterioration progression equipment and replacement of life-consuming facilities through detailed inspection, are carried out at specified cycles. However, due to the nature of power plants, planned preventive maintenance (TBM) causes a lot of loss in time and cost since the failure frequency is very low until the aging is sufficiently progressed after the initial stabilization period.

An object of the present invention is to solve the conventional problems as described above, the first object of the present invention is to standardize the maintenance work procedure in the power generation maintenance management unit, to manage the maintenance work in the same procedure for all maintenance work It is an object of the present invention to provide a power plant management system and a control method thereof.

It is a second object of the present invention to provide a power generation facility management system having a function of accounting and asset processing, and a method of controlling the same, capable of cost design for maintenance work by linking information with an enterprise resource planning system (ERP). It is done.

It is a third object of the present invention to provide a power generation facility management system and a control method thereof, which can systematically manage maintenance history by standardizing a facility classification system and a code classification system in a power generation maintenance management unit.

The fourth object of the present invention is a power generation equipment management system that can be connected to the power generation operation management unit through a real-time operation information system (PIS) and tag (tag) number to perform reliability analysis and risk assessment based on real-time operation information and It is an object to provide a control method.

As a means for achieving the above object, the configuration of the present invention includes a power generation operation management unit for systematically managing the operation status of the power generation facilities, a power generation operation management unit for systematically managing the operation status of the power generation facilities, and a power generation facility Power generation maintenance management department to comprehensively manage the maintenance status of the system, and through the RCM analysis, it is possible to establish the preventive inspection and preventive maintenance criteria to prevent the failure by analyzing the frequency of failure of the unit equipment for a certain period of time. Reliability analysis unit, and risk assessment unit to determine the planned preventive maintenance cycle per unit by analyzing the risk of each facility through the RBM diagnosis, and preventive inspection, prevention by unit equipment derived from the RCM analysis of the reliability analysis unit Data on maintenance methods and intervals and planned preventive maintenance intervals for each breath derived from the RBM diagnosis of the risk assessment department. The maintenance plan establishment department which draws out the overall maintenance plan for each unit by managing the system, and the information such as the drawings of the unit equipment and materials, technical data, and maintenance activities are linked in the form of data based on the equipment master. Management system The data drawing management unit, which shares information with each functional unit, manages the entire process of maintenance work by managing information such as equipment master, high temperature parts master, electronic card master, fault master, maintenance master, organization master, and maintenance performance in the form of data. It is preferable to include a reference information management unit that shares information with each functional unit throughout the power plant management system.

This invention can maintain the maintenance work in the same procedure for all maintenance work by standardizing the maintenance work procedure in the power plant maintenance department, and the cost design for maintenance work is possible by linking information with the enterprise resource planning system (ERP). , Accounting and asset processing, and standardized facility classification and code classification system for systematic maintenance history management, and linked with generation operation management department through real-time operation information system (PIS) and tag number It has the effect of reliability analysis and risk assessment based on real-time driving information.

1 is a block diagram of a power plant management system according to an embodiment of the present invention.
2 is a block diagram of a power generation operation management unit of a power generation facility management system according to an embodiment of the present invention.
Figure 3 is a block diagram of a power generation operation management unit of the power generation equipment management system according to an embodiment of the present invention.
Figure 4 is a block diagram of the power generation maintenance management unit of the power generation equipment management system according to an embodiment of the present invention.
5 is a functional configuration diagram of the data drawing management unit of the power generation equipment management system according to an embodiment of the present invention.
6 is a functional configuration diagram of the reference information management unit of the power generation equipment management system according to an embodiment of the present invention.
7 is a configuration diagram of the connection with the external system of the power generation equipment management system according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily carry out the present invention. Other objects, features, and operational advantages, including the purpose, operation, and effect of the present invention will become more apparent from the description of the preferred embodiments.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory only and are not to be construed as limiting the scope of the invention as disclosed in the accompanying claims. It is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and similarities, many of which are within the scope of the present invention. In addition, the terms or words used in the specification and claims herein should not be construed as being limited to the ordinary or dictionary meanings, and the inventors should properly explain the concept of terms in order to best explain their invention in the best way. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

1 is a block diagram of a power plant management system according to an embodiment of the present invention.

As shown in Figure 1, the configuration of the power generation equipment management system according to an embodiment of the present invention, the power generation operation management unit 100 for comprehensively managing the operation status of the power generation facilities, and operating conditions of the power generation equipment Power generation operation management unit 200 to systematically manage, power generation maintenance management unit 300 to comprehensively manage the maintenance status of power generation facilities, and breakdown of unit equipment on a regular basis for power plant unit equipment through RCM analysis Reliability analysis unit 400 to establish the preventive check and preventive maintenance standards to prevent failure by analyzing the frequency, and RBM diagnosis to analyze the risk of each facility to determine the planned preventive maintenance cycle for each breath RBM diagnosis of the risk assessment unit 500 and the preventive maintenance by unit equipment derived from the RCM analysis result of the reliability analysis unit 400, preventive maintenance method and cycle and risk assessment unit 500 And the maintenance plan establishment unit 600 for deriving a comprehensive maintenance plan for each unit by managing the planned preventive maintenance cycle for each unit derived in the form of data, and information such as drawings, technical data, maintenance activities of unit equipment and materials, etc. The data drawing management unit 700, which shares information with each functional unit of the power generation facility management system throughout the maintenance work, is linked to the data form based on the standard, and the facility master, the high temperature part master, the electronic card master, the fault master, the maintenance master, It includes a reference information management unit 800 to share information with each functional unit of the power generation facility management system throughout the maintenance work while managing information such as organization master, maintenance performance linkage and the like in the form of data.

The power generation operation management unit 100, power generation operation management unit 200, power generation maintenance management unit 300, reliability analysis unit 400, risk assessment unit 500, maintenance plan establishment unit 600, etc. In the process of establishing and implementing a maintenance plan by performing various calculation processes, the reference information management unit 800 and the data drawing management unit 700 are described in the process of establishing and implementing a maintenance plan. To play a secondary role. That is, the information of each functional unit of the power generation equipment management system of the present invention is structured to be connected to the reference information management unit 800 and the data drawing management unit 700 on the basis of the facility management.

2 is a block diagram of a power generation operation management unit of a power generation facility management system according to an embodiment of the present invention.

As shown in FIG. 2, the power generation operation management unit 100 of the power generation facility management system according to an embodiment of the present invention includes a power generation plan management unit 310 that manages short-term and medium-term power generation plans for each unit, and the actual amount of power generated. Power generation management unit 320 to manage the management, power generation maintenance management unit 330 to manage the generation stop time, daily operation status management unit to manage the information to analyze the daily profit and loss and the daily maintenance meeting (340) ), Similar failure prevention measures management unit 350 that establishes preventive measures for each breathing unit to prevent recurrence of similar cases in case of power failure, and power system information management unit that manages information on rapid dispatch, supply capacity, and market operation (360). ), The performance combustion test management unit 370 that manages the continuous change in performance of each unit by receiving the results of the performance test and the combustion test, and the emergency situation set in advance in preparation for the emergency situation. It includes the emergency situation / SOP management unit 380 for managing each standard behavior procedure (SOP), the LTTF management unit 390 for managing the long-term trouble-free operation (LTTF) time by receiving information on the cumulative generation time, To manage the operation status of power generation facilities comprehensively.

The development plan management unit 310 continuously manages the generation operation goals by inputting and comparing the short-term and medium-term power generation plans for each unit and the power generation plans of other power generation companies, and shares information with the daily operation status management unit 340. do.

The power generation management unit 320 stores the actual power generation on a daily and monthly basis, compares and confirms data, manages the power generation without errors, and shares information with the daily operation status management unit 340.

The power generation stop management unit 330 receives the contact signal indicating the open / closed state of the generator breaker during power generation stop and accurately manages the power generation stop time, thereby enabling accurate calculation of the operation time and the stop time. In addition, the start and end date of the planned preventive maintenance stop is input, and the operation reserve start time according to the instructions of the central power station is input to enable accurate calculation of the cumulative generation time and the cumulative stop time for each unit, and the daily operation status management unit ( Share information with 340.

Daily operation status management unit 340 receives the maintenance status, replacement operation / maintenance cycle test, operation status information necessary for the daily maintenance meeting to provide a basis for sharing the information for daily maintenance meeting, power generation performance, cost management, Provides information on operating status, combustion management, environmental facility management, raw water use, pure water use, limestone use, gypsum use, refining facility operation status, coal inventory status, and unloading status. Provide a shared foundation.

Similar failure prevention measures management unit 350 establishes preventive measures for each breath to prevent recurrence of similar cases in the event of a power failure, and transmits the established prevention measures to the work order management unit 160 to maintain them according to the work order processing procedure. Allow work to be done. The results of such measures share information with the daily operation status management unit 340.

The power system information management unit 360 receives and manages information on a dispatch bulletin, supply capacity, and market operation from the power exchange, and shares information with the daily operation status management unit 340.

The performance combustion test management unit 370 receives the performance test and combustion test results, manages the continuous change in performance of each breath, and shares information with the daily operation status management unit 340.

Emergency situation / SOP management unit 380 receives a standard operation procedure (SOP) for each emergency situation in advance to prepare for an emergency situation, and enables quick simulation in the event of an emergency situation by enabling simulation in advance through the system. And to enable this information is shared with the daily operation status management unit 340.

The LTTF management unit 390 receives the information on the cumulative generation time from the power generation stop management unit 330, manages the long term trouble free (LTTF) time, manages the LTTF history for each breath, such information Share with the daily operation status management unit 340.

Figure 3 is a block diagram of a power generation operation management unit of the power generation equipment management system according to an embodiment of the present invention.

3, the power generation operation management unit 200 of the power generation facility management system according to an embodiment of the present invention, the log sheet management unit 210 for managing the operation data of the power generation facilities, according to a predetermined cycle Replacement operation / periodical test management unit 220 which performs the opening and closing tests according to a predetermined cycle to prevent replacement of large steam valves, and safety accidents that may occur during work order maintenance work. In order to prevent the red tag management unit 230 issuing a pre-assigned red tag (Red Tag) for each equipment from the red tag master, if the operation status is not normal and the operation information of the unit equipment that is partially changed operation (abnormal operation) and Abnormal / simulation manager 240 for managing partial forced simulation of control logic, calculation of equivalent operating time (mechanical deterioration time of equipment) As used data, operation time / start count management unit 250, log sheet, replacement operation / periodical test, red tag, abnormal / simulation, operation time / A takeover log management unit 260 that manages operation information such as the number of startups, the main operation variable management unit 270 that determines whether the vehicle is operating within the management criteria by statistically analyzing the driving information data, and trends of the driving variables. Predictive diagnostics through the analysis is made to include a predictive diagnostic system linkage management unit 280 for early warning of the abnormality of the facility, and systematically manages the operation of the power plant.

The log sheet manager 210 records the operation data of the power generation facility, stores the data in the form of data, and transmits the pre-defined summary operation data to the take over log diary management unit 260.

The replacement operation / periodic test management unit 220 performs the replacement operation according to a predetermined cycle in order to average the age deterioration level according to the operation time of the unit equipment for each facility, and to prevent the large steam valve from sticking Open and close the test according to a predetermined cycle, and transmits the test results to the takeover log management unit 260. In addition, the information sharing with the daily operation status management unit 340.

The red tag management unit 230 issues and retrieves a pre-assigned red tag for each facility from a red tag master (not shown) in order to prevent safety accidents that may occur during work order maintenance work. Information (department information, personal information, time, etc.) is transferred to the take over log management unit 260.

The red tag opens a device (breaker) that cuts off the power supplied to the motor in order to ensure safety between the work of the unit device operated by receiving power, such as a unit device driven by a motor. Issue date, number of collection, name of open breaker, operation request, design department, operation department, maintenance department, issuer, collector, work order number, work order name, work order status, etc. Say information.

The abnormality / simulation manager 240 manages operation information and partial forced simulation of control logic of the unit equipments which are partially changed (abnormal operation) when the operation state is not normal, and takes over the result data. The transfer log is transmitted to the management unit 260.

The mandatory change (Simulation) is a normal operation of the facility when it is necessary to artificially maintain the abnormal operation state for a certain period of time due to the operation condition of the facility or to implement the maintenance work condition by operating a unit device contrary to the normal operation state between maintenance operations. It refers to artificially changing logic against the described logic (logic flow) to control the operation state. When the operating conditions are normal or the maintenance work is completed, the logic will be restored.

The operation time / start frequency management unit 250 manages the actual operation time and the start frequency of the unit equipment as data used for the calculation of the equivalent operation time (aging deterioration time of the equipment). The above equation of equivalent driving time is calculated as follows.

Equivalent operation time = actual operation time + number of starts × 20

The takeover log management unit 260 is all the operation information, that is, log sheet, replacement operation / regular cycle test, red tag (red tag), abnormal / simulation, operation time / number of start-up Operation information such as the data is stored and transmitted to the main operation variable management unit 270 and the predictive diagnosis system linkage management unit 280.

The main operation variable management unit 270 statistically analyzes operation information data transmitted from the real-time operation information system (PIS) associated with operation data for each facility transmitted from the takeover log management unit 260 and operates within a management standard range. Determine if it is.

The predictive diagnosis system linkage management unit 280 shares the operation data of the received facility with the company-wide predictive diagnosis system PHI, stop cause analysis system (TIS), and operation margin system (OMS). Predictive diagnostics through trend analysis to alert you to early failures.

Figure 4 is a block diagram of the power generation maintenance management unit of the power generation equipment management system according to an embodiment of the present invention.

As shown in FIG. 4, the power generation maintenance management unit 300 of the power generation facility management system according to the embodiment of the present invention includes a current maintenance request unit 110, a construction management unit 120, a work order management unit 160, It includes preventive inspection management unit 170, preventive maintenance management unit 175, maintenance history management unit 180, power generation company maintenance performance linkage unit 185, maintenance performance linkage unit 190, the overall status of the maintenance of the power generation equipment Manage with.

Maintenance work handled by the power generation maintenance management unit 300, the work order of the current maintenance request unit 110, the work order of the construction management unit 120, the work order of the similar failure prevention measures management unit 350, risk assessment unit 500 Work orders, and the like.

The work order management unit 160 is connected to the facility master manager 140, the red tag manager 145, the maintenance master manager 150, and the organization master manager 130 to utilize the stored information of each manager in a work order processing step. .

The work order processing procedure of the work order management unit 160 is in the order of the work request step, request approval step, request acceptance step, order design step, order approval step, work permission step, work completion step, work termination step, and settlement completion step. In each step, the personal information and department information of the organization master (not shown) are linked to the organization master management unit 130 and are provided throughout the work order processing.

In the work request step, the work order management unit 160 is connected to the facility master management unit 140, and provides the function location number, system number and type number information for the maintenance work target equipment possessed by the facility master (not shown). And a work request is made by receiving information on an abnormal state of a facility from an information device such as a PDA and a smart phone. Description of the equipment master will be described later.

In the request approval step, the work order management unit 160 receives the work importance information from the work importance master (not shown) for each facility to determine and process the approval line.

In the request reception step, the work order management unit 160 makes an approval request to the design department based on the information received from the organization master.

In the order design phase, the work order management unit 160 receives the red tag information for each facility from the red tag management unit 145 for the safety of the work to determine whether to issue a red tag, and the maintenance master The management unit 150 receives the design standard information, product information, job information, and expenses information to calculate labor costs and expenses. The necessary materials are received from the enterprise resource management system 900 to receive information on the material type, inventory quantity, amount, etc. to calculate the material cost.

The labor cost is calculated by multiplying the labor cost per work type stored in the reference information management unit 800 and the externally designed design amount, and the above cost is calculated by the expense rate of each work stored in the reference information management unit 800 and the expense item of the work order management unit. Calculate through the formula. In addition, the material cost is calculated by inquiring the data of the enterprise resource planning system (ERP) if there is stock, multiplied by the price of the material and the quantity shipped, and if there is no inventory, construction notice for external purchase It is calculated as material cost by multiplying the price and quantity in the construction notice.

In the order approval step, the work order management unit 160 is the type of quality safety work (important work, fire work, sealed / confined space work, electrical cut / close work, excavation work, radiation work, aerial work, heavy equipment work), Determine the types of environmental chemical work (waste generation work, waste water / waste oil work, hazardous chemical work, excavation work, noise / vibration / dust work, energy saving work, and other environmental complaint work) .

The types of work each have weights, and these weights are summed based on the type of work input externally. If the result is 10 or more, A grade, 5-9 means B grade, 0-4 means C grade Are distinguished. According to the working importance, the maintenance work order is finally approved with grade A as team leader payment, grade B as deputy approval and grade C as employee approval.

In the work completion step, the work order management unit 160 receives the maintenance result of the facility from the information device, such as a PDA (PDA), smart phone (Smart Phone) is stored in the form of data and manages the maintenance history for each facility. In addition, types of work (prevention maintenance, post-maintenance, improved maintenance), fault-induced stages (design, manufacturing, installation, operation, maintenance), failure areas, failure modes, causes of failure, and preventive work are coded and input. It is used when analyzing the RCM (Reliability Centered Maintenance) of the unit 400.

In the work termination stage, the work order management unit 160 performs an asset accounting process according to the asset settlement of the accounting settlement and maintenance target equipment for materials used during maintenance work in connection with the enterprise resource management system 900. In addition, labor costs and expenses related to the work order execution are calculated and stored in the form of data, and managed by maintenance costs for each facility.

After the work order processing process is completed, the maintenance history for each facility is divided into preventive inspection history, preventive maintenance history, ordinary maintenance history, construction history, etc. in the maintenance history management unit 180 and managed as a comprehensive maintenance history for each facility. In addition, the limited level of maintenance history results agreed in advance are transmitted to the maintenance history linkage unit 185 and the maintenance record linkage unit 190 to provide a wide base of sharing of maintenance information.

The preventive inspection management unit 170 receives the RCM analysis result of the reliability analysis unit 400 to generate weekly and annual preventive inspection criteria and methods for each facility, and issue a preventive inspection order for each generated cycle to perform preventive inspection work. To help. The preventive inspection management unit 170 receives the preventive inspection cycle and method data for each facility, site, and failure mode from the reliability analysis unit 400. In setting the preventive inspection criteria for the year, the preventive inspection method is the reliability analysis unit 400. The input value of is applied as is, and the preventive inspection cycle allocates the preventive inspection schedule so that the inspection cycle of all the facilities is repeated starting from the first Monday of the year to the end date of the year according to the preventive inspection cycle for each facility. First, the preventive inspection schedule for each facility (52 weeks) is derived on a weekly basis, and then the load is allocated based on the annual distribution density of the number of weekly preventive inspections and the annual key schedule data of the partner companies separately inputted. Adjust the preventive maintenance schedule to smooth the 52-week preventive maintenance load using the program and then derive the preventive maintenance criteria for the year. The derived preventive inspection criteria are transferred to the maintenance company and used as reference data for establishing detailed preventive maintenance plans.

The RCM analysis analyzes the failure mode effect (FEMA, Failure Mode Effect Analysis) and analyzes the average failure interval (MTBF) to derive the optimal preventive inspection, maintenance method, and cycle to prevent the failure of each facility. Facility management method.

For the RCM analysis, the reliability analysis unit 400 receives operation information and maintenance information, and operates from a predetermined reference value (temperature, pressure) above the operation information, that is, operates in a dangerous area, so that a failure may occur. The system to which this high equipment belongs is determined as an analysis target, and from the above maintenance information, the system to which the equipment belonging to the existing equipment is determined as an analysis target even if the number of failures has occurred since the last analysis point is selected. Decide Next, the reliability analysis unit 400 determines the function of the determined reliability analysis target system by searching for predefined function data for each system line, and searches for function failure data for each of the predefined muscles in the same form. Assign a malfunction of the analyte. Subsequently, the reliability analysis unit 400 searches the equipment list information for each function failure, which is defined in advance, allocates all the facilities, analyzes the effect of the function failure for each facility, and performs effective preventive inspection and maintenance work for the function failure. Decide The reliability analysis unit 400 compares the preventive check and maintenance standards (tasks, cycles) determined as described above with existing preventive check and maintenance standards, and integrates the methods of preventive check and maintenance and has a short cycle. Determine the optimal preventive maintenance and maintenance criteria in a conservative manner.

That is, the reliability analysis unit 400 uses the operation history information input from the real time operation information system 290 and the maintenance history information received from the power generation maintenance management unit 300 for the RCM analysis. To assign the functions of the determined reliability analysis target system, assign the functional failures, allocate the entire equipment from the equipment list information by the functional failures, analyze the effects of the functional failures for each equipment, and Determine preventive inspection and maintenance work, determine preventive inspection and maintenance cycle through MTBT data through wavelet analysis based on maintenance performance, and determine preventive maintenance and maintenance work The process of determining the optimal preventive check and maintenance standard is compared with the maintenance standard.

The preventive maintenance management unit 175 receives the RCM analysis result of the reliability analysis unit 400 to generate weekly and yearly preventive maintenance standards and methods for each facility, and issue work orders for each generated cycle to prevent work order processing. Carry out maintenance work. The process of deriving the preventive maintenance criteria described above is the same as the process of deriving the preventive maintenance criteria mentioned above, but is issued in the form of maintenance work order three weeks prior to the date based on the derived results.

The risk assessment unit 500 analyzes the risk of each facility through RBM (Risk Based Maintenance) diagnosis to determine the planned preventive maintenance cycle for each breath.

In order to diagnose RBM (Risk Based Maintenance), the risk evaluation unit 500 uses the operation history information input from the real-time operation information system 290 and the maintenance history information input from the power generation maintenance management unit 300 to generate aged deterioration. Risk assessment master management section that prepares risk assessment master by inputting information on the risk management target equipment from the risk management target facility determination unit (not shown) to determine the facility to be the risk management target facility. (Not shown), a non-destructive test result input unit (not shown) for providing a non-destructive test result, and basic information on equipment inspection from a risk assessment master management unit, and a driving history from a real-time operation information system 290 Receives maintenance history information from the information and power generation maintenance management unit 300, and enters the non-destructive inspection result input unit Maintenance failure probability calculation unit (not shown) that calculates the probability of failure (POF) using the values obtained from all seven paperweights (PF1 to PF7) by receiving non-destructive test results, and maintenance by the power generation maintenance management unit 300 Failure size calculation unit (not shown) that calculates the failure damage size (COF) using the values obtained from all five paperweights (CF1 to CF5) provided with the history information, and the risk matrix (Risk Matrix). ) To indicate the area according to the risk level, and the position specified on the Risk Matrix by the magnitude of the probability of failure (POF) and the magnitude of the probability of failure (COF). A risk assessment unit (not shown) that assesses the risks by whether they belong to the domain, and the risk changes of the highest risk components of the plant components according to the defined risk definitions. It comprises an open maintenance planning preventive maintenance plan period for establishing a unit (not shown). The risk calculation formula consists of:

Risk = POF × COF

The maintenance plan establishment unit 600 is a preventive inspection, a preventive maintenance method and a cycle for each unit derived from the RCM analysis result of the reliability analysis unit 400, and a plan preventive maintenance cycle for each breath derived from the RBM diagnosis result of the risk assessment unit 500 Manage the data in the form of a comprehensive maintenance plan for each unit by receiving the input.

The data drawing management unit 700 shares information such as drawings of the unit equipment and materials, technical data, and maintenance activities in the form of data based on the equipment master, and shares information with each functional unit of the power plant management system throughout the maintenance work. .

The reference information management unit 800 manages information such as facility master, high temperature part master, electronic card master, fault master, maintenance master, organization master, and maintenance performance in the form of data, and functions each generation facility management system throughout the maintenance work. Share information with wealth.

The facility master (not shown) has a facility location number, system number, and type number of the facility. In addition, the facility master has detailed information on the facility, such as the manufacturer, production date, model name, and serial number.The facility specification, maintenance history, preventive inspection history, preventive maintenance history, material BOM, and red tag It also has related maintenance work standards, related drawings, real-time operation information system (PIS) and tag information.

The function location number is a unique number for each facility defined by combining the concept of the unique function and location of the facility as the first method of defining the facility master. The functional location number is divided into five levels of hierarchical structure for each breath. The first level represents the facility, for example, is classified as "boiler equipment", "turbine equipment", "electric equipment", "measurement control equipment", "environmental equipment", "other auxiliary equipment", etc. It can be said that it is the large classification, the classification by function, and the cost statistics unit for the entire facility of one power plant. The second level represents a system, for example, classified as "boiler number and steam system", "main steam and reheat steam system", "fuel combustion system", etc. under the first level "boiler installation". It can be said that the system classification under one level, classification by function, and cost statistics unit by system. The third level represents a sub-system or group of installations, for example sub-level "boiler installation", sub-level "boiler number and steam system" sub- "boiler structure", "economizer", Classified as "Water Wall", "Superheater", etc., 2nd level sub-system or large equipment group, functional classification (sub-system: cost statistics) + classification by location (large equipment group: failure analysis) It can be called a unit. Level 4 represents a novel ratio group, and can be said to be a novel ratio group below 3 levels, a classification by location, and a failure analysis unit of a facility. Level 5 represents the actual equipment (equalment), and can be said to be the lowest level equipment that requires individual traceability below 4 levels, classified by location.

The system number is a system-specific number defined by classifying the entire equipment of the power generation process into a five-level hierarchical structure based on the system as a second method of defining a facility master. The system number is, for example, "level technology", "energy generation equipment", "fuel supply equipment", electricity generation equipment "," power equipment "," measurement and control equipment "," environmental purification equipment "at the first level. , "Public facilities", "buildings / structures", "land, site and remediation facilities", and the like.

The above-mentioned type number is a third method of defining a facility master, so that all the facilities of the power generation process can be classified into 300 kinds of equipments for efficient failure analysis. Type numbers are classified into three levels of hierarchical structure, for example, 139 types of "mechanical equipment", 73 types of "electrical equipment", 88 types of "control equipment", and the like.

The facility classification system of the facility master is used as a facility standard for the work order processing of the current maintenance request unit 110 and the construction management unit 120, and is used as a facility standard for the RBM diagnosis in the risk assessment unit 500, and a reliability analysis unit In RCM analysis of 400, it is used as a facility standard.

The high temperature component master enables to systematically manage operation history, maintenance history, and movement history for gas turbine high temperature components in which secular deterioration proceeds sensitively according to the start stop frequency and operation time.

The electronic card master enables the electronic card maintenance history and movement history to be systematically managed in order to minimize human error during the replacement and maintenance of the electronic card of the control equipment that uses a lot of electronic cards.

The above-mentioned fault master (not shown) is used for the RCM analysis of the reliability analysis unit, and the fault site, fault code, cause of fault, fault progression form, preventive work content, and action content are all coded. Failure analysis analyzes the cause of the problem or the problem to be solved without omission by 4M + 1D technique, which is a human factor, a machine factor, a management factor, and a method factor. It is classified and classified by each factor (5 major classifications and 20 small classifications) to analyze the specific cause of the power generation stop. RBM component master (not shown) is used in the RBM evaluation of the risk assessment unit 500 and is used for detailed risk assessment for each component of the equipment to be assessed.

The above 4M + 1D technique receives a real-time operation information system and maintenance history data of the work order management section of the power generation maintenance management section 300 and configures detailed faults as shown in the following [Table 1] and [Table 2] by predesigned logic. It is a technique to analyze the cause of failure based on the analysis criteria.

[Non-h3 corporation [ehdM4 management factors
[Management] D1 Design Factors
[Design] Inadequate M / F Vulnerable Facility Management
M42 Inadequate supervision
M43 lack of information
M44 lack of training D11 design failure
D12 manufacturing defect
D13 poor construction Explanation Illusion during normal operation for operation or maintenance
Inadvertent operation of the device for inadvertent operation or maintenance
Operation by improper procedure
Lack of communication I drive by an unauthorized person beforehand
Examination by unauthorized person
Manipulated by unauthorized person Construction not approved in advance
Maintenance work not approved in advance 1 phase abnormal indication and alarm not recognized or ignored
Illegal operation conditions of specific equipment
Failure of control and protection device of specific facility Determination of abnormality after recognition of emergency
Mistakes in the procedures and methods after emergency awareness
Misuse of delayed cooperation and emergency measures between departments due to delays in emergency situations Bad welding Bad machining Bad assembly Bad installation Lubrication
Insulation failure adjustment / correction failure Abnormal operation of the device or protective device
Abnormal malfunction of equipment or protective devices Retransmission System Breakdown Spread of Gas Supply Inflow of Marine Life
Heavy rain heavy snow thunderstorm thunderstorm M Inappropriate or missing inspection intervals for specific equipment
Improper or missing inspection methods for specific equipment Improper or missing maintenance intervals for specific equipment
Improper or missing maintenance on a particular device
Natural degradation (corrosion / erosion, wear / contamination, stress / fatigue, cracks / scale, etc.) Incomplete regulations, guidelines, standards, and procedures for stop-operated operation and maintenance
Regulations, guidelines, standards and procedures for operation and maintenance are unclear
Lack of consistency in regulations, guidelines, standards and procedures for operation and maintenance
Ineffective regulations, guidelines, standards and procedures for operation and maintenance Short term operation intentionally exceeding the second design capacity
Intentional long-term overload operation of design capacity Use of fuel with different components than the design conditions of the boiler
Use of low quality fuel compared to boiler design conditions

M4 M41 Vulnerable Facility
management
inappropriateness Improvement of facilities with insufficient efforts to improve facilities for similar failure cases
Neglect or incorrectly correct similar cases
Incomplete Equipment Improvement M42 Inadequate supervision  Approval of operation and maintenance work that may cause unstable equipment condition M43 Lack of information  Insufficient data for operation or maintenance M44 Lack of training  Lack of major knowledge and practical skills D1
D11 Poor design  Standard Capacity Design Inappropriate Material Material Selection Inadequate Correction Setpoint Inappropriate D12 Poor production  Material defect Welding defect Processing defect Assembly failure Insulation failure D13 Poor construction  Poor welding Poor processing Poor assembly Poor installation Poor oil supply Poor

In order to standardize the preventive maintenance work order processing of the construction management unit 120, the maintenance master is a standard design standard (not shown) in which unit maintenance items and design quantities are recorded, and product management, unit management, and occupations for calculation of construction cost. Provides management and expenses management.

The above-mentioned product management function is a standard data of the construction industry in which the unit capacity for each work related to the maintenance work is recorded, and provides the standard for calculating the yield of all maintenance work. By converting data into management, it provides a unit conversion function if necessary. The job management function provides a function of managing the government wage unit price by job type, and the above expense management function provides a function of managing the government standard rate by expense item. This will ultimately enable the calculation of construction costs associated with maintenance work.

The organization master contains department information and personal information, and determines the flow of work order processing.

In addition, through the link with KINNOS, maintenance results with the maintenance company, which is a maintenance partner, are shared.

100: power generation operation management unit 200: power generation operation management unit
300: power plant maintenance unit 400: reliability analysis unit
500: risk assessment unit 600: maintenance plan establishment unit
700: data drawing management unit 800: reference information management unit

Claims (10)

Power generation operation management department to comprehensively manage the operation status of power generation facilities,
Power generation operation management unit for systematically managing the operation status of power generation facilities,
Development maintenance department for comprehensive management of the maintenance status of power generation facilities,
Reliability analysis unit to analyze the frequency of failure of the unit equipment for a certain period of time through the RCM analysis to establish the preventive inspection and preventive maintenance standards to prevent the failure,
A risk assessment unit that analyzes the risk of each facility through RBM diagnosis to determine the planned preventive maintenance cycle for each breath,
By deriving a comprehensive maintenance plan for each aerodrome by managing the preventive inspection, preventive maintenance method, and cycle for each unit derived from the RCM analysis of the reliability analysis unit, and the planned preventive maintenance cycle for each aerodrome derived from the RBM diagnosis result of the risk assessment unit in the form of data Maintenance planning department,
Data drawing management department that shares the information of unit facilities and materials, drawings, technical data, maintenance activities, etc. in the form of data based on the facility master, and shares information with each functional unit of the power plant management system throughout the maintenance work.
It manages information such as facility master, high temperature parts master, electronic card master, fault master, maintenance master, organization master, maintenance company, etc. Including the standard information management to share,
The power generation operation management unit includes a power generation plan management unit that manages short-term and medium-term power generation plans by unit, a generation performance management unit that manages actual power generation, a development maintenance management unit that manages power generation stop time, and information for daily maintenance meetings. Daily operation status management department that manages information to analyze daily profit and loss status, similar failure prevention management department that establishes preventive measures by air to prevent recurrence of similar cases in case of power failure, dispatch report, supply capacity, and market operation Power system information management unit that manages information regarding the performance, performance test and combustion test result input, performance combustion test management unit that manages the continuous change of performance for each unit, and standard action procedures for each emergency set in advance for emergency situations Emergency situation / SOP management department that manages (SOP), receives information about cumulative generation time, long-term trouble-free Made, including LTTF manager for managing the entire (LTTF) time,
The power generation operation management unit, the log sheet management unit that manages the operation data of the power plant, and performs the replacement operation according to a predetermined cycle, and the opening and closing tests according to a predetermined cycle to prevent the large steam valve stuck Replacement operation / periodical test management unit that executes the program, and red tag management unit that issues a pre-assigned red tag for each facility from the red tag master to prevent safety accidents during work order maintenance work. Abnormal / simulation manager that manages the operation information of the unit equipments that are partially changed (abnormal operation) and the partial forced change of control logic if it is not normal, and calculates the equivalent operation time (aging deterioration time of equipment) Operation time / start frequency management that manages actual operation time and start frequency of unit equipment as data used for Management standard range by statistically analyzing operation information data, log sheet, replacement operation / periodic test, red tag, abnormal / simulation, operation time / start frequency It includes key operation variable management unit to determine whether it is operating inside, and predictive diagnosis system linkage management unit for early warning of abnormality of equipment by predictive diagnosis through trend analysis of operating variables.
The power generation maintenance management unit includes a work order management unit, and the work order processing procedure of the work order management unit includes a work request step, request approval step, request acceptance step, order design step, order approval step, work permission step, and work completion step. Step, work completion step, settlement completion step,
In the request approval step, the work order management unit receives the work importance information from the work importance master for each facility to determine and process the settlement line,
In the request acceptance step, the work order management unit makes an approval request to the design department based on the information received from the organization master.
In the order designing step, the work order management unit receives red tag information for each facility from the red tag management unit for the safety of the work, and determines whether to issue a red tag, and the maintenance master management unit 150. Labor cost and expenses are calculated by receiving design standard information, product information, job information, expenses, etc.
In the order approval step, the work order management unit is a kind of quality safety work (critical work, fire work, sealed / confined space work, electrical blocking / proximity work, excavation work, radiation work, aerial work, heavy equipment work) and environment Determine the types of chemical work (waste generation work, waste water / waste oil work, hazardous chemical work, excavation work, noise / vibration / dust work, energy saving work, other environmental complaint work)
In the above work completion step, the work order management unit receives the maintenance results of the equipment from informational devices such as PDA and smart phone, and stores them in data form and manages them by maintenance history for each facility. Preventive maintenance, post-maintenance, improved maintenance), fault incidence stages (design, manufacturing, installation, operation, maintenance), parts of failure, failure mode, causes of failure, preventive work are coded and entered.
In the above work termination step, the work order management unit performs an asset accounting process in accordance with the accounting settlement and the increase or decrease of assets of the maintenance target equipment for materials used during maintenance work in connection with the enterprise resource management system. Power generation facility management system, characterized in that related labor costs, expenses are also stored in the form of data, and managed by maintenance costs for each facility. delete delete delete delete delete delete delete delete delete

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