WO2019073577A1 - サービスメニュー提示システム、運転パターン表示システム、サービスメニュー提示方法及びプログラム - Google Patents
サービスメニュー提示システム、運転パターン表示システム、サービスメニュー提示方法及びプログラム Download PDFInfo
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- WO2019073577A1 WO2019073577A1 PCT/JP2017/037022 JP2017037022W WO2019073577A1 WO 2019073577 A1 WO2019073577 A1 WO 2019073577A1 JP 2017037022 W JP2017037022 W JP 2017037022W WO 2019073577 A1 WO2019073577 A1 WO 2019073577A1
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- service menu
- pattern
- period
- driving
- operation pattern
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C9/00—Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants
- F02C9/26—Control of fuel supply
- F02C9/28—Regulating systems responsive to plant or ambient parameters, e.g. temperature, pressure, rotor speed
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
- G05B23/0224—Process history based detection method, e.g. whereby history implies the availability of large amounts of data
- G05B23/024—Quantitative history assessment, e.g. mathematical relationships between available data; Functions therefor; Principal component analysis [PCA]; Partial least square [PLS]; Statistical classifiers, e.g. Bayesian networks, linear regression or correlation analysis; Neural networks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
- F01D21/003—Arrangements for testing or measuring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
- F01D21/14—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for responsive to other specific conditions
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/40—Data acquisition and logging
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0481—Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
- G06F3/0482—Interaction with lists of selectable items, e.g. menus
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/0035—User-machine interface; Control console
- H04N1/00405—Output means
- H04N1/00408—Display of information to the user, e.g. menus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/80—Diagnostics
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/26—Pc applications
- G05B2219/2639—Energy management, use maximum of cheap power, keep peak load low
Definitions
- the present invention relates to a service menu presentation system, a driving pattern display system, a service menu presentation method, and a program.
- Patent Document 1 discloses a support device that notifies support information for prompting an inspection or replacement of a component in which deterioration or the like has occurred.
- the support device described in Patent Document 1 calculates the operation state (for example, the number of times of activation) of the device based on sensing information acquired from the device of the power generation plant, and compares the calculated operation state with various threshold values. Therefore, the degree of operation state is determined, and the support information according to the degree is presented.
- this invention aims at providing the service menu presentation system which can solve the above-mentioned subject, a driving
- the service menu presentation system includes an operation data acquisition unit for acquiring operation data of a power generation plant, and a plurality of operation patterns in which the operation data is predetermined according to an output form.
- An operation pattern determination unit that determines which operation pattern is indicated, and an operation time calculation unit that calculates an operation time for each operation pattern in the predetermined period based on the operation data acquired in the predetermined period
- an intra-period operation pattern determination unit that determines an intra-period operation pattern that is an operation pattern representative of the predetermined period based on a ratio of the operation time for each operation pattern in the predetermined period
- a menu output unit configured to output a service menu corresponding to the operation pattern.
- the service menu presentation system outputs a mark indicating the in-period operation pattern in the triangle together with a triangle having a point corresponding to each of the operation patterns as a vertex.
- the driving pattern output unit may further be provided.
- the menu output unit is configured to select two of the driving patterns when a difference between the driving times according to the two driving patterns is within a predetermined range among the driving times for each of the driving patterns.
- a corresponding service menu may be presented.
- the menu output unit may present, in addition to the operation pattern, a service menu corresponding to the number of times of activation within the predetermined period.
- the operation pattern may include full load operation and partial load operation and governor operation.
- the menu output unit may further output the service menu according to an average of outputs when the intra-period operation pattern is the partial load operation or the governor operation.
- the service menu presenting system further includes a driving pattern predicting unit for predicting the driving pattern in the period within the predetermined period of the future based on past driving data in the power generation plant. You may have.
- the menu output unit acquires a first service menu extracted based on a predetermined monitoring item in the operation data and a threshold determined for each of the monitoring items, Among service menus according to the intra-period operation pattern, a service menu equal to the acquired first service menu may be preferentially output.
- the driving pattern display system is a representative driving pattern of a fixed period determined based on the ratio of the driving time for each of a plurality of driving patterns predetermined according to the output form.
- a driving pattern output unit that outputs a mark indicating a driving pattern in a certain period to a triangle having a point associated with the driving pattern as a vertex, and outputting the triangle in the triangle.
- the service menu presenting method includes any of a step of acquiring operation data of a power generation plant, and a plurality of operation patterns in which the operation data is predetermined according to an output form.
- a step of determining whether the operation according to the operation pattern is indicated, a step of calculating an operation time for each operation pattern in the predetermined period based on the operation data acquired in the predetermined period, and the operation pattern in the predetermined period Determining an in-period operation pattern that is an operation pattern representative of the predetermined period based on the ratio of each operation time, and outputting a service menu according to the determined in-period operation pattern.
- the program causes the computer to perform operation data acquisition processing for acquiring operation data of the power generation plant, and the plurality of operation patterns in which the operation data is predetermined according to the output form.
- the menu output process which outputs the service menu according to the driving
- the service menu presentation system and the service menu presentation method described above it is possible to grasp a portion where degradation or damage is likely to occur, based on the operation pattern of the power generation plant. Further, according to the above-described operation pattern display system, it is possible to grasp the operation pattern of the power plant which is a basis for estimating the occurrence of deterioration or damage.
- FIG. 7A is a first diagram illustrating an example of a service menu according to an embodiment of the present invention. It is a 2nd flowchart which shows an example of the presentation process of the service menu by one Embodiment of this invention.
- FIG. 6 illustrates an example of an operating mode according to an embodiment of the present invention.
- FIG. 7 is a second diagram illustrating an example of a service menu according to an embodiment of the present invention. It is a figure which shows an example of the hardware constitutions of the service menu presentation apparatus in one Embodiment of this invention.
- FIG. 1 is a schematic block diagram showing an example of an operation support system according to an embodiment of the present invention.
- the operation support system 1 is a system that presents a service menu related to maintenance to maintenance staff who performs maintenance of the plant 10 and plans for it.
- the service menu includes, for example, maintenance items such as locations to be inspected, locations where deterioration or damage is expected, and effective measures for degradation or damage (for example, introduction of upgrade parts) for the devices provided in the plant 10 Information indicating
- the operation support system 1 includes a plant 10, an operation support device 20, a service menu presentation device 30, and a maintenance terminal 40.
- the service menu presentation device 30 is communicably connected to each of the plant 10, the operation support device 20, and the maintenance terminal 40.
- the operation support device 20 is communicably connected to each of the plant 10, the service menu presenting device 30, and the maintenance terminal 40.
- the plant 10 is, for example, a power plant provided with a gas turbine.
- plant equipment necessary for power generation for example, gas turbines 10A and 10B are installed.
- the plant 10 transmits the operation data of the gas turbines 10A and 10B to the operation support device 20 and the service menu presentation device 30.
- the operation data includes various control signals (signals indicating an operation pattern, a valve opening command signal, etc.) output to the gas turbines 10A and 10B by a control device (not shown), the gas turbine 10A, etc. It includes measured values measured by various sensors and values (temperature, pressure, output, number of rotations, etc.) calculated based on the measured values.
- the operation support device 20 compares the value of the monitoring item based on the operation data received from the plant 10 (gas turbines 10A and 10B) with various threshold values to determine the operation state of the gas turbine 10A etc. Provide appropriate support information. For example, the operation support device 20 calculates the compressor efficiency using the temperature at the inlet and the outlet of the compressor, the cabin pressure, and the like included in the operation data. If the calculated compressor efficiency is a value outside the range defined by the predetermined threshold value, the operation support device 20 determines that the operation state requires the cleaning of the compressor blades. The operation support device 20 transmits support information for prompting the wing cleaning to the service menu presentation device 30 and the maintenance terminal 40. The support information includes a service menu corresponding to the operation status.
- the service menu presenting device 30 determines the operation pattern of the gas turbine 10A or the like based on the operation data received from the plant 10, Select the appropriate service menu.
- the service menu presentation device 30 may use the support information acquired from the operation support device 20 for selecting a service menu.
- the service menu presenting device 30 transmits the selected service menu to the maintenance terminal 40.
- the maintenance terminal 40 is an information processing apparatus such as a personal computer (PC) or a mobile terminal used by maintenance staff.
- the maintenance terminal 40 outputs the service menu acquired from the service menu presentation device 30 and the support information acquired from the operation support device 20, and displays the information on the display device.
- the maintenance staff refers to the service menu output by the maintenance terminal 40 to plan inspection items for periodic inspection, presents the service menu output by the maintenance terminal 40 to the user of the plant 10, and explains the contents of the periodic inspection.
- FIG. 2 is a functional block diagram showing an example of a service menu presenting apparatus according to an embodiment of the present invention.
- the service menu presentation device 30 includes an operation data acquisition unit 301, an operation pattern determination unit 302, an operation time calculation unit 303, an in-period operation pattern determination unit 304, and a number of activations calculation unit 305.
- the operation pattern output unit 306, the service menu output unit 307, the operation pattern prediction unit 308, the support information acquisition unit 309, and the storage unit 310 are provided.
- the service menu presentation device 30 is configured by a computer such as one or more server terminals.
- the operation data acquisition unit 301 acquires the operation data transmitted by the plant 10 and records the operation data in the storage unit 310.
- the driving pattern determination unit 302 determines, based on the control signal of each time recorded in the driving data, the driving pattern in a predetermined time starting from that time.
- the operation data includes a control signal indicating an operation pattern of the gas turbine 10A every one minute.
- the gas turbine 10A performs one minute operation according to the operation pattern instructed by the control signal.
- the operation pattern is an operation method according to the role that the plant 10 gives each gas turbine 10A, 10B in order to stably supply an appropriate amount of power.
- the operation pattern includes, for example, full load operation, partial load operation, and governor operation according to the output form.
- Full load operation is the operating pattern given to the gas turbine that is responsible for generating most of the power that the plant 10 supplies.
- control is performed to maintain the exhaust gas temperature from the gas turbine at a target value.
- a control signal for instructing full load operation is recorded every one minute in the operation data of the time zone.
- the partial load operation is, for example, an operation pattern given to the gas turbine that bears the power generation of the fluctuation among the power supplied by the plant 10.
- control is performed to keep the output from the gas turbine at a target value.
- a control signal instructing partial load operation is recorded every minute for the operation data of that time zone.
- the governor operation is, for example, an operation pattern given to the gas turbine which plays a role in stabilizing the frequency of the power supplied by the plant 10.
- governor operation control is performed to keep the rotational speed of the gas turbine at a target value.
- a control signal instructing the governor operation is recorded every minute in the operation data of the time zone.
- the driving pattern determination unit 302 determines whether the driving pattern at each time is full load driving, partial load driving, or governor driving based on the control signal recorded in the driving data.
- the driving time calculation unit 303 sums up the driving data using the determination result by the driving pattern determination unit 302, and calculates the driving time for each driving pattern in a certain period. For example, for 10 minutes of operation data recorded every minute, control signals for full load operation are recorded at five times, control signals for partial load operation are recorded at three times, and control of governor operation at two times When the signal is recorded, the operation time calculation unit 303 calculates the operation time of each operation pattern as 5 minutes for full load operation, 3 minutes for partial load operation, and 2 minutes for governor operation. The driving time calculation unit 303 calculates the driving time for each driving pattern based on, for example, driving data for one year.
- the in-period operation pattern determination unit 304 determines an in-period operation pattern, which is an operation pattern representative of a predetermined period, based on the ratio of the operation time for each operation pattern in the predetermined period. For example, when the ratio of operating time in one year (full load operation: partial load operation: governor operation) is 5: 3: 2, the in-period operation pattern determination unit 304 performs full load operation in a period of this one year Determined as a driving pattern.
- the number of times of start-up calculation unit 305 calculates the number of times of start-up of the gas turbines 10A and 10B based on the operation data.
- the driving pattern output unit 306 outputs a predetermined mark indicating the in-period driving pattern in the triangle, together with a triangle having a point corresponding to each of the driving patterns as a vertex.
- the mark indicating the in-period operation pattern is output at a position representing the ratio of the operation time for each operation pattern in the triangle.
- the service menu output unit 307 outputs a service menu corresponding to the in-period operation pattern. For example, if the intra-period operation pattern is a full load operation, the service menu output unit 307 selects a service menu defined in association with the full load operation from service menus defined in association with each operation pattern. Select and output.
- This service menu includes maintenance items, update recommended items, and the like for dealing with locations where there is a high possibility of deterioration or damage due to full load operation.
- the driving pattern prediction unit 308 predicts an in-period driving pattern within a predetermined fixed period in the future based on past driving data.
- the support information acquisition unit 309 acquires support information from the operation support apparatus 20.
- the support information includes the values of predetermined monitoring items based on the operation data (in the above example, the temperatures at the outlet and the inlet of the compressor, the compressor efficiency based on the cabin pressure), and the thresholds determined for each of the monitoring items.
- a service menu in the above example, a service menu for cleaning the wing.
- the service menu output unit 307 adds the content of the support information acquired from the operation support apparatus 20 to the selection factor, and selects a service menu based on the in-period operation pattern.
- the storage unit 310 stores various information such as operation data acquired by the operation data acquisition unit 301 and a service menu for each operation pattern.
- FIG. 3 is a first flowchart showing an example of processing by the service menu presenting apparatus according to the embodiment of the present invention.
- the service menu presentation device 30 acquires operation data for one year to a plurality of years in the past, and determines an operation pattern in a period of one year (step S1).
- the service menu presentation device 30 outputs an operation pattern in a period of one year.
- the service menu presenting device 30 predicts the driving time of each driving pattern in the future based on the past driving data, and predicts the driving pattern in the future period (step S2).
- the service menu presenting device 30 presents a service menu according to the intra-period operation pattern (step S3).
- the service menu presenting device 30 presents a service menu such as a check point or a replacement part to be performed at the next periodic inspection based on the operation pattern in a period based on operation data of the last one year In the next year, based on the prediction of the next year, to present the service menu that will be required in the next year.
- FIG. 4 is a flowchart showing an example of a process of determining an in-period operation pattern according to an embodiment of the present invention.
- operation data of the gas turbine 10A for the past eight years is recorded in the storage unit 310, and a case of determining an operation pattern in a period for each year in the eight years will be described.
- the driving data acquisition unit 301 acquires driving data for one year (for example, eight years ago) of the past eight years (step S11).
- the driving data acquisition unit 301 outputs driving data to the driving pattern determination unit 302.
- the operation pattern determination unit 302 determines an operation pattern (full load operation, partial load operation, governor operation) every predetermined time (for example, every one minute) based on the control signal recorded in the operation data ( Step S12).
- the driving pattern determination unit 302 records the determined driving pattern in the storage unit 310 in association with the control signal of each time recorded in the driving data.
- the driving time calculation unit 303 calculates the driving time for each driving pattern (step S13). For example, the operation time calculation unit 303 counts the operation patterns associated with the operation data, multiplies the counting result by the recording interval of the control signal (for example, one minute), and the gas turbine 10A operates in each operation pattern. Calculate the operating time. In the processing up to this point, the operating time (Tc) for full load operation, the operating time (Tb) for partial load operation, and the operating time (Ta) for governor operation are calculated.
- the operation pattern determination unit 304 determines an operation pattern within the period of the gas turbine 10A of this year as a partial load operation. This means that the operating pattern of the gas turbine 10A eight years ago was dominated by partial load operation.
- a dominant driving pattern (in-period driving pattern) in a certain period is based on the ratio of driving time according to each driving pattern. decide.
- the operation pattern output unit 306 displays the determined intra-period operation pattern (step S15). Next, a specific display example will be described with reference to FIG. Next, the operation pattern output unit 306 determines whether or not all the years (for eight years) have been displayed (step S16). If there is an undisplayed year, the process from step S11 is repeated.
- FIG. 5 is a view showing a display example of the intra-period operation pattern according to the embodiment of the present invention.
- the driving pattern output unit 306 displays a triangle in which each of the vertices A to C is associated with each driving pattern as illustrated, and displays a star-shaped mark P1 to P8 indicating a driving pattern in a period in the triangle.
- the apex A is associated with governor operation
- the apex B is associated with partial load operation
- the apex C is associated with full load operation.
- mark P1 indicates the operation pattern in a period of one year eight years ago
- mark P2 indicates an operation pattern in a period one year seven years ago
- Mark P8 indicates an operation pattern in a period in the last one year. ing. The same applies to the marks P3 to P7.
- the triangle in FIG. 5 is a graph represented by a coordinate system having a line from vertex A to vertex B, a line from vertex B to vertex C, and a line from vertex C to vertex A as coordinate axes with each vertex as a reference. (Hereafter, it describes as a triangular coordinate graph).
- the mark P1 is displayed at the position of the coordinates (b1, c1, a1) based on the ratio (c1 [%]: b1 [%]: a1 [%]) of each operation pattern eight years ago.
- the first value “b1” of the coordinates (b1, c1, a1) indicates the position b1 at the ratio of the vertex A to b1 on the side AB.
- the second value “c1” indicates the position c1 in the side BC at a ratio from the vertex B to c1.
- the third value “a1” indicates a position a1 at a rate of a1 to a vertex C on the side CA.
- the operation pattern output unit 306 among the sides other than the side on which the specified position exists, is the vertex serving as the reference of each position a1, b1 and c1.
- a mark P1 is displayed at the intersection of the three auxiliary lines when the auxiliary lines are drawn in parallel with the side (side BC, side CA, side AB) including (apex C, apex A, apex B, respectively).
- the auxiliary line Lb is a side CA including the vertex A as a reference of the point b7 among the sides other than the side AB (side BC and side CA) from the point b7 (a position at a ratio of the vertex A to b7 in the side AB) It is an auxiliary line drawn parallel to.
- the auxiliary line Lc is an auxiliary line drawn parallel to the side AB from the point c7.
- the auxiliary line La is an auxiliary line drawn parallel to the side BC from the point a7.
- the driving pattern output unit 306 displays the mark P7 at the intersection of the auxiliary lines La, Lb, and Lc.
- the positions where the marks P1 to P8 are displayed indicate the tendency of the driving pattern of each year. That is, each mark shows that the driving time by the driving pattern corresponding to each vertex is long in the order of the vertex near the display position.
- the operation pattern corresponding to the closest vertex is the in-period operation pattern.
- the maintenance staff is not only the in-period operation pattern, but also the tendency of the year's operation pattern (for example, the in-period operation pattern is partial Even in the case of the load operation, it is possible to grasp whether most of the entire operation time is the partial load operation or whether the operation time by the partial load operation is the longest but the operation time by the governor operation is also long). Thereby, the maintenance staff can suggest the inspection item etc. which considered the tendency of the operation pattern to a user.
- the maintenance staff can grasp the transition of the operation pattern by displaying the marks of a plurality of years.
- the partial load operation is overwhelmingly dominant eight years ago, and the operation time of the governor operation is slightly increased seven years ago.
- Six years ago full load operation increased to the same degree as partial load operation, and five years ago full load operation is the most dominant operation pattern.
- the partial load operation is mainly operated.
- the maintenance staff can suggest the inspection item etc. which considered the transition of the operation pattern to a user.
- the inside of the triangular coordinate graph is divided into a region A1 (region surrounded by an alternate long and short dash line) indicating that governor operation is dominant and a region B1 (portion enclosed by broken lines) indicating that partial load operation is dominant.
- Region region
- region C1 region enclosed by a two-dot chain line
- region AB region indicating that governor operation and partial load operation are equally comparable
- partial load operation
- a region BC indicating that the full load operation is equally dominant
- a region CA indicating that the full load operation and the governor operation are equally dominant.
- the service menu is presented according to the area in which the mark indicating the in-period operation pattern is displayed.
- the operation pattern output unit 306 displays and visualizes an operation pattern in a period affecting the deterioration and damage caused to the gas turbine 10A and the like in a region corresponding to each operation pattern in the triangular coordinate graph.
- FIG. 6 is a flowchart showing an example of a process of predicting an in-period operation pattern according to an embodiment of the present invention.
- the driving data acquisition unit 301 acquires the driving time for each driving pattern based on the driving data for the last three years (step S21).
- the driving time for each driving pattern is acquired for the years of the marks P6 to P8.
- the driving time for each driving pattern has already been calculated when creating the triangular coordinate graph.
- the driving pattern prediction unit 308 predicts the driving time of the next year, next year (step S22).
- the driving pattern prediction unit 308 uses data of driving time for each driving pattern two years ago as unit space data, and uses data of driving time for each driving pattern one year ago and three years ago as unit space data. . Then, using a known method of T method (1), the proportional constant ⁇ , the SN ratio ⁇ , the effective divisor r, the comprehensive estimated value M, etc. of signal data are calculated, and the operation time for each operation pattern of the next year ( Estimate the unknown data). Similarly, the driving pattern prediction unit 308 uses the driving time for each driving pattern one year ago as unit space data, and the driving time for each driving pattern two years ago and the driving time for each driving pattern for the next year estimated. The driving time for each driving pattern of next year is estimated as signal data.
- the driving pattern prediction unit 308 outputs the estimated data of the estimated next year and next year to the in-period driving pattern determination unit 304.
- the in-period operation pattern determination unit 304 determines an in-period operation pattern in the next year, next year, based on estimated data of the next year, next year.
- the driving pattern output unit 306 displays driving patterns in a period of next year, next year, in a triangular coordinate graph (step S23).
- FIG. 5 shows an example of the intra-period operation pattern estimated by the operation pattern prediction unit 308.
- the mark P9 is an operation pattern in the next year
- the mark P10 is an operation pattern in the next year.
- the driving pattern in the future is predicted, and the driving in the period from the past to the future It is possible to visualize the transition of the pattern. This makes it possible to predict parts and inspection points that may be degraded or broken several years in advance. It is important for the user who operates the plant 10 to reduce the profit loss due to an unexpected shutdown and to reduce the inspection cost. Such loss benefits can be suppressed if it is possible to predict parts that are highly likely to deteriorate or fail and to prevent the operation stop of the gas turbine 10A by maintenance in advance.
- the user secures the budget necessary for inspections and parts replacement. And can create long-term, lean operation plans, which can lead to cost reductions.
- prediction method of operating time is not limited to T method (1).
- prediction may be performed by multiple regression analysis or extrapolation.
- FIG. 7 is a first flowchart showing an example of service menu presentation processing according to an embodiment of the present invention.
- the driving pattern output unit 306 displays a mark indicating a within-period driving pattern on the triangular coordinate graph (step S31).
- the maintenance staff selects any of the areas A1, B1, C1, AB, BC, and CA (step S32). For example, the maintenance staff selects a region in which the operation pattern within a period of the last year is displayed by performing a click operation or a tap operation.
- FIG. 8 shows an example of a table in which the service menu recorded in the storage unit 310 is registered.
- FIG. 8 is a first diagram illustrating an example of a service menu according to an embodiment of the present invention.
- the table illustrated in FIG. 8 has items of “item number”, “operation pattern”, “type”, and “service menu”.
- the "item number” stores identification information of the service menu. In the "operation pattern”, any one of full load operation, partial load operation, and governor operation is stored.
- the "type” stores the type of service menu. Specifically, either upgrade or maintenance is stored.
- the upgrade is a service menu that recommends an upgrade to a component that is less likely to deteriorate or fail with respect to a component that is prone to deterioration or failure according to the in-period operation pattern.
- the maintenance is a service menu which recommends inspection of a part where deterioration or failure is likely to occur or replacement of parts in the part depending on an operation pattern in a period. A specific service menu is stored in the "service menu”.
- a HEPA (High Efficiency Particulate Air) filter can be mentioned.
- the HEPA filter is attached to the suction side of the compressor of the gas turbine 10A, and is introduced in order not to take in harmful substances (dust, sand, oil mist, etc.) that cause deterioration of the gas turbine 10A.
- the flow rate of intake air is large to maintain high output, and the compressor blades are easily contaminated. This causes a reduction in the efficiency and reliability of the compressor, and a shutdown for cleaning.
- the HEPA filter is recommended as an upgrade part to prevent these (section A1).
- the first stage of the stator vanes of the gas turbine 10A is placed in the severest use environment among the moving and stationary blades of the turbine.
- the load on the first stage of the stationary blade is heavy because the fluctuation of the turbine inlet temperature is large.
- the hot gas is also involved in the support ring adjacent to the first stage of the stator blade, and high temperature oxidation reduction occurs. Therefore, inspection of the support ring is recommended (Item No. B1).
- the service menu when the operation pattern in the period is governor operation, inspection of a lock nut of an IGV (inlet guide vane) actuator and inspection of a bypass ring of a bypass valve provided on a tail sleeve of a combustor can be mentioned. .
- the sliding parts of the IGV and bypass valve are often damaged.
- maintenance is recommended to check if the lock nut is loose and retighten if necessary (No. C1).
- the bypass ring it is checked whether the wear is progressing, and if the wear is progressing, it is recommended to perform maintenance for repairing (No. C2).
- the storage unit 310 stores a list of service menus recommended for each operation pattern.
- the service menu output unit 307 reads out from the storage unit 310 all service menus related to the in-period operation pattern.
- the support information acquisition unit 309 acquires support information from the operation support apparatus 20 (step S34).
- the support information includes a support menu selected based on the operation state threshold. For example, when the efficiency of the compressor of the gas turbine 10A is lower than the threshold, the operation support apparatus 20 transmits, to the service menu presentation apparatus 30, support information (first service menu) that recommends cleaning of the compressor. Do.
- the support information transmitted by the operation support apparatus 20 has nothing to do with the operation pattern of the gas turbine 10A. In other words, even if the operation pattern in the period of the gas turbine 10A is an operation pattern in which "cleaning of the compressor" is not registered in the table of the service menu illustrated in FIG. 8 (even in partial load operation and governor operation) 2.) If the compressor efficiency is lower than the threshold, send support information recommending "clean compressor".
- the service menu output unit 307 displays the service menu (step S35).
- the service menu output unit 307 adds the support information acquired from the operation support apparatus 20 to the selection factor to select the service menu. For example, when the operation pattern in the period is full load operation and the service information including “cleaning of the compressor” is acquired from the operation support device 20, the service menu output unit 307 performs full load operation from the storage unit 310. Read out related service menus such as "HEPA filter” and "Washing compressor”. The service menu output unit 307 preferentially outputs “cleaning of the compressor” based on the fact that “cleaning of the compressor” acquired from the operation support apparatus 20 is included in the read service menu.
- the service menu output unit 307 displays “Cleaning the compressor” at the top, or displays “Cleaning the compressor” in the most noticeable manner, or “Cleaning the compressor” has an operation pattern.
- the service menu selected from each viewpoint of the operation state and may indicate that it is the most recommended service menu.
- the service menu output unit 307 displays “The service menu based on the operation pattern is“ check of support ring ”.
- the service menu based on the operation state is“ cleaning of the compressor ”or the like.
- the service menu output unit 307 displays a service menu associated with the two operation patterns.
- the service menu output unit 307 displays “HEPA filter” associated with full load operation, “cleaning of compressor”, etc., and “support ring check” associated with partial load operation. Etc. are displayed together.
- the middle regions are unique regardless of the two driving patterns. It is because the form of damage has not been confirmed. Also in this case, if the support information “cleaning of compressor” is obtained from the operation support apparatus 20, “cleaning of compressor” is displayed preferentially.
- the user of the plant 10 can be notified in advance of the locations to be mainly inspected and the reasons thereof at the time of the next periodic inspection, so that the user's understanding of the periodic inspection can be easily obtained, and parts replacement and upgrade parts are proposed. Easy to connect to
- the number of items increases, and it may not be clear which one should be selected.
- the item in which the support information and the service menu based on the in-period operation pattern coincide can be set as the main inspection item, the convenience at the time of planning the periodic inspection is improved.
- FIG. 9 is a second flowchart showing an example of service menu presentation processing according to an embodiment of the present invention.
- the driving time calculation unit 303 calculates the driving time for each driving pattern
- the intra-period driving pattern determination unit 304 determines the intra-period driving pattern.
- the operating time calculation unit 303 calculates an operating time for each load zone for the intra-period operation pattern (step S41). The calculation of the operating time for each load zone will be described.
- the operation time calculation unit 303 calculates how much of the operation time of the full load operation occupies during the year. For example, in the case where a control signal instructing a full load operation is recorded in 80% of the control signals per minute recorded in the operation data, the operation time calculation unit 303 determines that the full load operation time is 80% of the year It is calculated that The operating time calculation unit 303 determines whether the full load operating time is 75% or more of the year.
- the operation time calculation unit 303 calculates an average load factor in the daytime and in the nighttime.
- the magnitude of the output of the gas turbine 10A or the like is recorded in the operation data, and the operation time calculation unit 303 divides the output value of the operation data by the rated output to determine how much the load at each time is (Loading factor) can be calculated.
- the driving time calculation unit 303 calculates the load factor for each time, and calculates an average value for each of daytime and nighttime. Further, the operation time calculation unit 303 determines, for the daytime load factor, whether or not a month for which the average load factor is 80% or more is present for 9 months or more in a year.
- the operation time calculation unit 303 determines, for the nighttime load factor, whether or not a month for which the average load factor is 75% or more is present for nine months or more in a year.
- the operation time calculation unit 303 outputs the determination result to the service menu output unit 307 in association with the year and the operation pattern within the period of that year.
- the activation frequency calculation unit 305 calculates the activation frequency for one year (step S42). For example, a history in which a control signal instructing start and stop of the gas turbine 10A is output is recorded in the operation data, and the number-of-starts calculation unit 305 instructs start-up out of one year's worth of operation data. The number of activations is calculated by counting control signals. The activation number calculation unit 305 outputs the activation number for each year to the service menu output unit 307.
- the driving pattern output unit 306 displays a mark indicating a driving pattern in a period on the triangular coordinate graph (step S43). This process is the same as step S15 of FIG.
- the maintenance staff selects the mark of the year for which the service menu is to be displayed (step S44). For example, the maintenance staff selects the mark P8 (FIG. 5) on which the operation pattern within the last year is displayed by the click operation or the tap operation or the like in order to plan the periodic inspection to be performed next.
- the service menu output unit 307 displays a service menu in accordance with the intra-period operation pattern, the load band, and the number of times of activation (step S45).
- the operation method classified by the operation pattern in a period, a load zone, and the number of times of activation is called an operation mode.
- FIG. 10 shows an example of the operation mode.
- FIG. 10 is a diagram showing an example of an operation mode according to an embodiment of the present invention. As illustrated, the operation modes are classified according to whether the operation is in the high load zone, the operation in the low load zone is high, and the number of times of activation is low. The classification is made in this way because, even with the same operation pattern during the same period, differences occur in places where deterioration or damage progresses between high load and low load, and the number of times of start-up.
- the service menu output unit 307 determines which operation mode is illustrated in FIG. 10 based on the determination results and the number of activations acquired in steps S41 and S42.
- the operation time at full load operation is classified as 75% or more of the total operation time, and if less than 75%, the operation frequency is 36 times or more per year. Do classification.
- operation mode “A-1” it is considered that damage to high temperature parts (turbine blades and vanes, split rings, etc.) is the most severe.
- the service menu is classified for each operation mode, and the service menu output unit 307 determines that the operation mode determined is “A-1” From this table, a service menu is proposed which proposes upgrade or maintenance for the high temperature parts associated with the operation mode "A-1” and is outputted.
- the service menu output unit 307 outputs the service menu to make the high temperature parts. Furthermore, when the number of times of activation is large, the damage caused by the start and stop and the damage caused by the turning rotation increase. When the operation mode is “A-3”, the service menu output unit 307 outputs a service menu for damage caused by start / stop and turning in addition to the service menu for high temperature parts. An example of the service menu corresponding to the number of times of activation will be described later.
- a month with a daytime load factor of 80% or more is 9 months or more in one year
- a month with a nighttime load factor of 70% or more is 9 months or more in one year
- the number of activations is 36 times or less
- the operation mode is classified into "B-1: partial load operation (high load zone)”. If the same load factor conditions at day and night are satisfied and the number of activations is 37 or more, the operation mode is classified as "B-2: partial load operation (high load zone) + multiple activation”.
- a month with a daytime load factor of 80% or more is 9 months or more in one year
- a month with a nighttime load factor of 70% or more in 9 hours or more in one year 36 activations
- the operation mode is classified into "C-1: governor operation (high load zone)”. If the same load factor conditions at day and night are satisfied and the number of activations is 37 or more, the operation mode is classified into “C-2: governor operation (high load zone) + multiple activation”.
- C-3 governor operation (low load zone)
- C-4 governor operation (low load zone) + multiple start” being classified.
- the service menu output unit 307 outputs a service menu corresponding to the operation mode “C-1” to “C-4” of the governor operation.
- FIG. 11 is a second diagram showing an example of a service menu according to an embodiment of the present invention.
- the table illustrated in FIG. 11 is recorded in the storage unit 310.
- This table stores a "service menu” for damage that is likely to occur when the number of times of activation is large.
- the “item number” stores identification information of the service menu.
- the “type” stores the type of service menu (upgrade, maintenance).
- a specific service menu is stored in the "service menu”.
- the exhaust casing is exposed to severe thermal stress.
- the condition of the exhaust casing is checked, and if there is a crack, a service menu "inspection of the exhaust casing" prompting to repair welding is stored.
- the service menu "Inspection of damage due to long-time turning" is stored to prompt inspection of the condition of wear such as turbine disc blade groove, seal plate, blade stop of first stage of moving blade of compressor. There is.
- the operation mode is any of “A-3”, “B-2”, “B-4”, “C-2”, and “C-4”
- service menu output unit 307 responds to the load band.
- the service menu according to the number of activations is output.
- the service menu based on the operation load mode and the operation mode further divided from the viewpoint of the number of times of activation, it is possible to estimate the damage location and the like in more detail based on the operation mode. It becomes. As a result, the preparation accuracy can be improved and the periodic inspection can be carried out more smoothly in preparing the parts and parts that may be deteriorated or damaged before the periodic inspection.
- the support information may be acquired from the operation support apparatus 20, and the service menu may be displayed in consideration of the support information.
- the operation mode may be classified into operation modes based on what% of the operation time in each operation pattern is operated in the high load zone.
- FIG. 3 predicts the future intra-period operation pattern, only steps S1 and S3 may be performed without performing this step.
- FIG. 12 is a diagram showing an example of a hardware configuration of a service menu presenting apparatus according to an embodiment of the present invention.
- the computer 900 includes a CPU 901, a main storage 902, an auxiliary storage 903, and an interface 904.
- the above-described service menu presentation device 30 includes a computer 900.
- the operation of each processing unit described above is stored in the auxiliary storage device 903 in the form of a program.
- the CPU 901 reads a program from the auxiliary storage device 903 and develops the program in the main storage device 902, and executes the above processing according to the program. Further, the CPU 901 secures a storage area corresponding to the storage unit 310 described above in the main storage device 902 according to the program.
- the auxiliary storage device 903 is an example of a non-temporary tangible medium.
- Other examples of non-transitory tangible media include magnetic disks, magneto-optical disks, optical disks, semiconductor memory, etc. connected via interface 904.
- the computer 900 that has received the distribution may deploy the program in the main storage device 902 and execute the above processing.
- the program may be for realizing a part of the functions described above.
- the program may be a so-called difference file (difference program) that realizes the above-described function in combination with other programs already stored in the auxiliary storage device 903.
- the service menu presentation device 30 it is possible to use as a driving pattern display system which outputs the in-period driving pattern to a triangular coordinate graph.
- the service menu presentation device 30 is an example of a service menu presentation system.
- the service menu presentation system and the service menu presentation method described above it is possible to grasp a portion where degradation or damage is likely to occur, based on the operation pattern of the power generation plant. Further, according to the above-described operation pattern display system, it is possible to grasp the operation pattern of the power plant which is a basis for estimating the occurrence of deterioration or damage.
- Operation support system 10 Plant 10A, 10B: Gas turbine 20: Operation support device 30: Service menu presentation device 301: Operation data acquisition unit 302 ⁇ Operation pattern determination unit 303: Operation time calculation unit 304 ⁇ ⁇ ⁇ Operation pattern determination unit during the period 305: Number of times of start calculation unit 306 ... Operation pattern output unit 307 ... Service menu output unit 308 ⁇ Operation pattern prediction unit 309 ... support information acquisition unit 310 ... storage unit 40 ... maintenance terminal
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Abstract
Description
以下、本発明の一実施形態によるサービスメニュー提示システムを図1~図12を参照して説明する。
図1は、本発明の一実施形態における運用サポートシステムの一例を示す概略ブロック図である。運用サポートシステム1は、プラント10の保守やその計画を行う保守スタッフに、保守に関するサービスメニューを提示するシステムである。サービスメニューとは、例えば、プラント10が備える装置について、点検すべき個所、劣化や損傷が予測される箇所、劣化や損傷に対する有効な対処法(例えば、アップグレード部品の導入)などの保守項目の選択肢を示す情報である。
図2に示すように、サービスメニュー提示装置30は、運転データ取得部301と、運転パターン判定部302と、運転時間算出部303と、期間内運転パターン決定部304と、起動回数算出部305と、運転パターン出力部306と、サービスメニュー出力部307と、運転パターン予測部308と、サポート情報取得部309と、記憶部310とを備えている。サービスメニュー提示装置30は、1台または複数台のサーバ端末などのコンピュータによって構成される。
運転パターン判定部302は、運転データに記録された各時刻の制御信号に基づいて、その時刻を起点とする所定時間における運転パターンを判定する。例えば、運転データには、1分毎にガスタービン10Aの運転パターンを指示する制御信号が含まれている。ガスタービン10Aは、この制御信号に指示された運転パターンで、1分間の運転を行う。
運転パターン出力部306は、運転パターンの各々と対応付けられた点を頂点とする三角形とともに、当該三角形内に期間内運転パターンを示す所定の印を出力する。期間内運転パターンを示す印は、三角形内における運転パターンごとの運転時間の比を表した位置に出力される。三角形や印については、後述する。
サポート情報取得部309は、運用サポート装置20からサポート情報を取得する。サポート情報には、運転データに基づく所定の監視項目の値(上記例では、圧縮機の出口と入口の温度、車室圧力に基づく圧縮機効率)と、その監視項目ごとに定められた閾値とに基づいて抽出されたサービスメニュー(上記例では、翼の洗浄を行うサービスメニュー)が含まれる。サービスメニュー出力部307は、運用サポート装置20から取得したサポート情報の内容を選定要因に加えて、期間内運転パターンに基づくサービスメニューの選定を行う。
記憶部310は、運転データ取得部301が取得した運転データや運転パターンごとのサービスメニューなど種々の情報を記憶する。
まず、サービスメニュー提示装置30は、過去における1年~複数年分の運転データを取得し、1年ごとの期間内運転パターンを決定する(ステップS1)。サービスメニュー提示装置30は、1年ごとの期間内運転パターンを出力する。
次にサービスメニュー提示装置30は、過去の運転データに基づいて、未来の各運転パターンの運転時間を予測し、未来の期間内運転パターンを予測する(ステップS2)。次にサービスメニュー提示装置30は、期間内運転パターンに応じたサービスメニューを提示する(ステップS3)。例えば、サービスメニュー提示装置30は、最近1年間の運転データに基づく期間内運転パターンに基づいて、次回の定期点検時に行うべき点検個所や交換部品等のサービスメニューを提示したり、期間内運転パターンの予測に基づき次年、次々年に必要となるサービスメニューを提示したりする。
図4は、本発明の一実施形態における期間内運転パターンの決定処理の一例を示すフローチャートである。
一例として、記憶部310には、ガスタービン10Aの過去8年分の運転データが記録されており、この8年間における各年別に期間内運転パターンを決定する場合について説明を行う。まず、運転データ取得部301が、過去8年分のうち1年分(例えば、8年前)の運転データを取得する(ステップS11)。運転データ取得部301は、運転データを運転パターン判定部302へ出力する。次に運転パターン判定部302は、運転データに記録された制御信号に基づいて、所定時間ごと(例えば、1分ごと)の運転パターン(全負荷運転、部分負荷運転、ガバナ運転)を判定する(ステップS12)。運転パターン判定部302は、判定した運転パターンを運転データに記録された各時刻の制御信号と対応付けて記憶部310に記録する。次に運転時間算出部303は、運転パターンごとの運転時間を算出する(ステップS13)。例えば、運転時間算出部303は、運転データと対応付けた運転パターンを集計し、集計結果に制御信号の記録間隔(例えば1分間)を乗じて、ガスタービン10Aが各運転パターンで運転している運転時間を算出する。これまでの処理で、全負荷運転による運転時間(Tc)と、部分負荷運転による運転時間(Tb)と、ガバナ運転による運転時間(Ta)とが算出される。
運転パターン出力部306は、図示するように各頂点A~Cを各運転パターンと対応付けた三角形を表示し、三角形内に期間内運転パターンを示す星形の印P1~P8を表示する。頂点Aはガバナ運転、頂点Bは部分負荷運転、頂点Cは全負荷運転にそれぞれ対応付けられている。また、印P1は8年前の1年間における期間内運転パターン、印P2は7年前の1年間における期間内運転パターン、・・・、印P8は最近1年間における期間内運転パターンをそれぞれ示している。印P3~P7についても同様である。
図6は、本発明の一実施形態によるおける期間内運転パターンの予測処理の一例を示すフローチャートである。
まず、運転データ取得部301が、最近3年間の運転データに基づく、運転パターンごとの運転時間を取得する(ステップS21)。図5の場合、印P6~P8の年について運転パターンごとの運転時間を取得する。運転パターンごとの運転時間は、三角座標グラフを作成する際に算出済みである。次に運転パターン予測部308が、次年、次々年の運転時間を予測する(ステップS22)。例えば、運転パターン予測部308は、2年前の運転パターンごとの運転時間のデータを単位空間データとし、1年前および3年前の運転パターンごとの運転時間のデータをそれぞれ単位空間データとする。そして、公知であるT法(1)の手法を用いて信号データの比例定数β、SN比η、有効除数r、総合推定値Mなどを算出して、次年の運転パターンごとの運転時間(未知データ)を推定する。同様に運転パターン予測部308は、1年前の運転パターンごとの運転時間を単位空間データとし、2年前の運転パターンごとの運転時間と推定した次年の運転パターンごとの運転時間とをそれぞれ信号データとして次々年の運転パターンごとの運転時間を推定する。
図7は、本発明の一実施形態によるサービスメニューの提示処理の一例を示す第1のフローチャートである。
まず、運転パターン出力部306が、期間内運転パターンを示す印を三角座標グラフに表示する(ステップS31)。次に保守スタッフが、領域A1、B1、C1、AB、BC、CAの何れかを選択する(ステップS32)。例えば、保守スタッフは、最近1年の期間内運転パターンが表示された領域に対して、クリック操作またはタップ操作などを行って選択する。
このように記憶部310には、各運転パターン別に推奨されるサービスメニューの一覧が記録されている。サービスメニュー出力部307は、期間内運転パターンに関連する全てのサービスメニューを記憶部310から読み出す。
図9は、本発明の一実施形態によるサービスメニューの提示処理の一例を示す第2のフローチャートである。
前提として、図4で説明した処理のステップS14までが実行済みであるとする。つまり、運転時間算出部303は、運転パターンごとの運転時間を算出し、期間内運転パターン決定部304が、期間内運転パターンを決定している。次に運転時間算出部303は、期間内運転パターンについて、負荷帯ごとの運転時間を算出する(ステップS41)。負荷帯ごとの運転時間の算出について説明する。
運転時間算出部303は、判定結果を年およびその年の期間内運転パターンに対応付けてサービスメニュー出力部307へ出力する。
図示するように運転モードは、期間内運転パターンごとに、高負荷帯の運転が多いか、低負荷帯の運転が多いか、および起動回数の多いか少ないかによって分類されている。このように分類するのは、同じ期間内運転パターンであっても、高負荷と低負荷、起動回数の多少で劣化や損傷が進む箇所に差が生じるからである。サービスメニュー出力部307は、ステップS41、S42で取得した判定結果や起動回数に基づいて図10で例示する何れの運転モードかを判定する。
図11は、本発明の一実施形態によるサービスメニューの一例を示す第2の図である。
図11に例示するテーブルは、記憶部310に記録されている。このテーブルには、起動回数が多い場合に生じやすい損傷に対する「サービスメニュー」が格納されている。「項番」にはサービスメニューの識別情報が格納される。「種別」には、サービスメニューの種類(アップグレード、メンテナンス)が格納される。「サービスメニュー」には、具体的なサービスメニューが格納される。例えば、排気車室は、過酷な熱応力にさらされている。特にガスタービン10A等の起動停止が繰り返されると、溶接部にクラックが生じやすくなる(起動発停に起因する損傷)。従って起動回数が多い場合、排気車室の状態を点検し、クラックが生じていれば溶接補修を行うよう促すサービスメニュー「排気車室の点検」が格納されている。
サービスメニュー出力部307は、運転モードが、「A-3」、「B-2」、「B-4」、「C-2」、「C-4」の何れかの場合、負荷帯に応じたサービスメニューに加えて、起動回数に応じたサービスメニューを出力する。
期間内運転パターンが領域ABなどの中間領域となった場合、各運転パターンでの運転時間のうち何%を高負荷帯で運転したかに基づいて、運転モードに分類してもよい。
図3では、未来の期間内運転パターンを予測することとしたが、このステップを行わずに、ステップS1、ステップS3のみを行ってもよい。
コンピュータ900は、CPU901、主記憶装置902、補助記憶装置903、インタフェース904を備える。
上述のサービスメニュー提示装置30は、コンピュータ900を備える。そして、上述した各処理部の動作は、プログラムの形式で補助記憶装置903に記憶されている。CPU901は、プログラムを補助記憶装置903から読み出して主記憶装置902に展開し、当該プログラムに従って上記処理を実行する。また、CPU901は、プログラムに従って、上述した記憶部310に対応する記憶領域を主記憶装置902に確保する。
例えば、サービスメニュー提示装置30の一部の機能を用いて、期間内運転パターンを、三角座標グラフに出力する運転パターン表示システムとして利用することができる。サービスメニュー提示装置30は、サービスメニュー提示システムの一例である。
10・・・プラント
10A、10B・・・ガスタービン
20・・・運用サポート装置
30・・・サービスメニュー提示装置
301・・・運転データ取得部
302・・・運転パターン判定部
303・・・運転時間算出部
304・・・期間内運転パターン決定部
305・・・起動回数算出部
306・・・運転パターン出力部
307・・・サービスメニュー出力部
308・・・運転パターン予測部
309・・・サポート情報取得部
310・・・記憶部
40・・・保守端末
Claims (11)
- 発電プラントの運転データを取得する運転データ取得部と、
前記運転データが、出力形態に応じて予め定められている複数の運転パターンのうち、何れの運転パターンによる運転を示しているかを判定する運転パターン判定部と、
一定期間に取得した前記運転データに基づいて、前記一定期間における前記運転パターンごとの運転時間を算出する運転時間算出部と、
前記一定期間における前記運転パターンごとの運転時間の比に基づいて、前記一定期間を代表的する運転パターンである期間内運転パターンを決定する期間内運転パターン決定部と、
決定した前記期間内運転パターンに応じたサービスメニューを出力するメニュー出力部と、
を備えるサービスメニュー提示システム。 - 前記運転パターンの各々と対応付けられた点を頂点とする三角形とともに、当該三角形内に、前記期間内運転パターンを示す印を出力する運転パターン出力部、
をさらに備える請求項1に記載のサービスメニュー提示システム。 - 前記運転パターンごとの運転時間のうち、2つの前記運転パターンに係る運転時間の差が所定の範囲内の場合、前記メニュー出力部は、2つの前記運転パターンに応じたサービスメニューを提示する、
請求項1または請求項2に記載のサービスメニュー提示システム。 - 前記メニュー出力部は、前記運転パターンに加え、前記一定期間内における起動回数に応じたサービスメニューを提示する、
請求項1から請求項3の何れか1項に記載のサービスメニュー提示システム。 - 前記運転パターンには、全負荷運転および部分負荷運転およびガバナ運転が含まれる、請求項1から請求項4の何れか1項に記載のサービスメニュー提示システム。
- 前記メニュー出力部は、前記期間内運転パターンが、前記部分負荷運転または前記ガバナ運転の場合、さらに出力の平均に応じて前記サービスメニューを出力する、請求項5に記載のサービスメニュー提示システム。
- 前記発電プラントにおける過去の運転データに基づいて、未来の前記一定期間内における前記期間内運転パターンを予測する運転パターン予測部、
をさらに備える請求項1から請求項6の何れか1項に記載のサービスメニュー提示システム。 - 前記メニュー出力部は、前記運転データにおける所定の監視項目と、その監視項目ごとに定められた閾値とに基づいて抽出された第1サービスメニューを取得し、前記期間内運転パターンに応じたサービスメニューのうち、取得した前記第1サービスメニューと等しいサービスメニューを優先的に出力する、請求項1から請求項7の何れか1項に記載のサービスメニュー提示システム。
- 出力形態に応じて予め定められている複数の運転パターンごとの運転時間の比に基づいて決定された一定期間の代表的な運転パターンである期間内運転パターンを示す印を、前記運転パターンと対応付けられた点を頂点とする三角形とともに、当該三角形内に出力する運転パターン出力部、
を備える運転パターン表示システム。 - 発電プラントの運転データを取得するステップと、
前記運転データが、出力形態に応じて予め定められている複数の運転パターンのうち、何れの運転パターンによる運転を示しているかを判定するステップと、
一定期間に取得した前記運転データに基づいて、前記一定期間における前記運転パターンごとの運転時間を算出するステップと、
前記一定期間における前記運転パターンごとの運転時間の比に基づいて、前記一定期間を代表的する運転パターンである期間内運転パターンを決定するステップと、
決定した前記期間内運転パターンに応じたサービスメニューを出力するステップと、
を有するサービスメニュー提示方法。 - コンピュータに、
発電プラントの運転データを取得する運転データ取得処理と、
前記運転データが、出力形態に応じて予め定められている複数の運転パターンのうち、何れの運転パターンによる運転を示しているかを判定する運転パターン判定処理と、
一定期間に取得した前記運転データに基づいて、前記一定期間における前記運転パターンごとの運転時間を算出する運転時間算出処理と、
前記一定期間における前記運転パターンごとの運転時間の比に基づいて、前記一定期間を代表的する運転パターンである期間内運転パターンを決定する期間内運転パターン決定処理と、
決定した前記期間内運転パターンに応じたサービスメニューを出力するメニュー出力処理と、
を実行させるプログラム。
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