WO2017216830A1 - Système d'analyse de données - Google Patents

Système d'analyse de données Download PDF

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Publication number
WO2017216830A1
WO2017216830A1 PCT/JP2016/067486 JP2016067486W WO2017216830A1 WO 2017216830 A1 WO2017216830 A1 WO 2017216830A1 JP 2016067486 W JP2016067486 W JP 2016067486W WO 2017216830 A1 WO2017216830 A1 WO 2017216830A1
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Prior art keywords
data
analysis
plant
analysis device
recording
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PCT/JP2016/067486
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English (en)
Japanese (ja)
Inventor
岡本　浩次郎
清水　勝人
亘 笹木
鈴木　洋之
正博 村上
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株式会社日立製作所
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Application filed by 株式会社日立製作所 filed Critical 株式会社日立製作所
Priority to PCT/JP2016/067486 priority Critical patent/WO2017216830A1/fr
Priority to JP2018523044A priority patent/JP6640348B2/ja
Publication of WO2017216830A1 publication Critical patent/WO2017216830A1/fr

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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

Definitions

  • the present invention relates to a data analysis system.
  • industrial plants in the fields of electric power, steel, water and sewage, petroleum, chemicals, etc. are connected and connected to each facility with piping etc. in order to realize the designed plant process operation, and are adjusted and controlled under necessary conditions. .
  • input the physical state such as temperature, pressure, flow rate, etc. in each facility, add appropriate calculations to this physical state, and then output it to controlled devices such as valves, heaters, fans, and motors. It is executed by giving.
  • Measured monitoring control devices that perform such calculations capture measurement signals (measurement items) at regular intervals from sensors provided in each facility.
  • This measurement monitoring control device is connected to a maintenance device having an adjustment function of plant monitoring control such as control / protection logic, parameter creation, parameter management and the like.
  • the time series data of measurement items is stored in the maintenance device, but the time series data of measurement items may be stored in a data recording device connected to the maintenance device.
  • the measurement monitoring control device is an analysis device that performs analysis processing for identifying the cause of failure of the control target device using analysis signal data indicating the state of the device, analysis processing for detecting a failure sign, etc. It may be connected to.
  • Patent Document 1 discloses a method of generating key information as analysis data for analyzing a past plant state based on history data and sharing information in the plant via this key information. .
  • the usages of the maintenance device, the data recording device, and the analysis device are different from each other, and the users of each device and the requirements for each device to use data are also different for each device.
  • the maintenance device operations such as plant operation adjustment by the plant operator, operation check of the control program by the control program coordinator, and identification of an equipment failure location are performed. Since these operations are performed during normal operation of the plant and during trial operation of the plant, it is necessary to display data output from the plant on the display unit or to perform quick operations for searching for data.
  • the data recording device is required to correctly record data output from the plant in time series.
  • the maintenance manager of the control target device performs data collation, processing, analysis, etc. to identify the cause of the device failure or detect the failure sign. Ease of processing is required.
  • Patent Document 1 the plant analysis system disclosed in Patent Document 1 is not related to the operation of each device constituting the system. For this reason, for example, even when the user of the maintenance device and the user of the analysis device use the same data, the user of each device has to make individual settings for each device.
  • the present invention has been made in view of such a situation, and an object thereof is to reduce work required for data analysis processing.
  • the data analysis system adds a control device to control and control logic of the control target equipment constituting the plant and a maintenance device that manages parameter creation and management, and additional information used for data search by the analysis device.
  • a data recording device for storing data recording items indicating the operation state of the device; and an analysis device for analyzing data read from the data recording device according to a predetermined purpose.
  • the maintenance device or the data recording device uses the predetermined user interface set for each device to select and set the recording items stored in the analysis device in the analysis device.
  • the analysis device stores the data extracted from the data recording device in the recording items selected and set by the maintenance device or the data recording device, and performs a predetermined analysis process.
  • the analysis device can perform a predetermined analysis process using the data stored in the recording item selected and set by the maintenance device or the data recording device.
  • the setting work for can be reduced. Problems, configurations, and effects other than those described above will be clarified by the following description of embodiments.
  • FIG. 1 is a block diagram illustrating an example of the overall configuration of the data analysis system 1.
  • the data analysis system 1 includes a maintenance device 2, a measurement monitoring control device 3, a process chart creation management device 4, an operation monitoring terminal 5, a data recording device 6, and an analysis device 7.
  • the maintenance device 2, the measurement monitoring control device 3, the process chart creation management device 4, the data recording device 6 and the analysis device 7 are connected to the measurement monitoring network N and can communicate data with each other.
  • the operation monitoring terminal 5 is connected to the measurement monitoring control device 3.
  • the data analysis system 1 performs an analysis process on data output from a power plant (hereinafter referred to as “plant”).
  • plant power plant
  • the data analysis system 1 can also be used as a plant control system for controlling the operation of the plant.
  • the maintenance device 2 is used online by, for example, maintenance personnel and adjustment workers (also called users), and manages the control logic 21 (an example of control protection logic). Based on the control logic 21, the measurement monitoring control device 3 controls the operation of the control target equipment 9 (for example, plant equipment, plant equipment) constituting the plant.
  • the maintenance device 2 can transmit the operation performed by the user to the control target device 9 in real time through the control logic 21 and can immediately display the execution result of the control logic 21 on the display unit C5 (see FIG. 2 described later). Display responsiveness is required.
  • the maintenance device 2 constructs a control logic 21 that regulates the operation of the plant including the control target device 9 provided with the sensor group 8.
  • the control logic 21 is created by the maintenance device 2 based on the measurement signal measured by the sensor group 8.
  • the created control logic 21 is executed by the measurement monitoring control device 3.
  • the operation of the plant is controlled based on the control logic 21.
  • the program executed by the maintenance device 2 creates plant control / protection logic, parameters used for plant control, manages parameters, and the like. Further, the maintenance device 2 can acquire plant state information for a specific signal identifier from the analysis device 7.
  • the measurement monitoring control device 3 directly acquires the measurement signal output by the sensor group 8 measuring and outputting the control target device 9, and monitors and controls the operation of the plant.
  • the value of this measurement signal is captured as a measurement item by the data recording device 6.
  • the output value to the plant monitored, controlled and protected by the measurement monitoring control device 3 is obtained from the control logic 21.
  • the process table creation management apparatus 4 includes a schedule process table 41 (see FIG. 8 to be described later) for storing work schedules such as tests and constructions for the maintenance apparatus 2 to perform trial operation and periodic inspection of the plant, A result process table 42 (see FIG. 8 described later) for storing work results is created.
  • the sensor group 8 is a generic term for various sensors attached to the control target device 9.
  • the sensor group 8 includes other measurement monitoring and control devices such as a sensor and a one-loop instrument that generate signals for the measurement monitoring and control device 3 to perform calculations necessary for monitoring, controlling, and protecting the plant. included.
  • the sensor group 8 outputs, for example, a sensor value obtained by measuring a physical state such as temperature, pressure, and flow rate of the control target device 9 as a measurement signal to the measurement monitoring control device 3.
  • the data recording device 6 acquires measurement signal data (hereinafter referred to as “recorded data”) collected from the sensor group 8 by the measurement monitoring control device 3 through the measurement monitoring network N.
  • This recorded data includes information related to plant operation monitoring and operation results (for example, turbine pressure, turbine speed, turbine temperature, etc.). Then, the data recording device 6 adds additional information used by the analysis device 7 for searching the recorded data, and stores the recorded data indicating the operation state of the control target device 9 in the recorded item 61.
  • the recording data acquired by the data recording device 6 is stored in the recording items 61 and accumulated in the recording device database 60 provided in the data recording device 6.
  • recording data including attribute information such as a signal identifier, a time series value of a logic operation value, and a time of acquisition of the logic operation value is accumulated in the recording device database 60. Is done.
  • the maintenance device 2 or the data recording device 6 can select and set the recording item 71 stored in the analysis device 7 in the analysis device 7 using a user interface prepared in advance for each device. is there.
  • the analysis device 7 performs analysis processing of recorded data read from the data recording device 6 in accordance with a predetermined purpose, and is used offline by a maintenance manager of the control target device 9, for example. For this reason, the analysis device 7 needs to be able to easily process the recorded data used for the analysis.
  • the result of the analysis processing is displayed on, for example, a display unit C5 (see FIG. 2 described later) provided in the analysis device 7.
  • the analysis device 7 includes an analysis device database 70 for storing specific recorded data.
  • the analysis device 7 selects recorded data to be used for analysis from the recording device database 60 through the measurement monitoring network N, and accumulates the recorded data in the analyzing device database 70.
  • the analysis device database 70 also includes a recording item 71 having the same configuration as the recording item 61 of the recording device database 60. In the analysis device database 70, not only the user of the analysis device 7 sets the recording item 71, but also the user of the data recording device 6 or the maintenance device 2 can set the recording item 71.
  • the analysis device 7 can also register the recording data extracted from the data recording device 6 in the recording item 71 set by the data recording device 6 or the maintenance device 2.
  • the analysis device 7 stores the recorded data extracted from the data recording device 6 in the recording item 71 selected and set by the maintenance device 2 or the data recording device 6 and performs a predetermined analysis process. For example, the analysis device 7 accumulates recording data as history data at the time of normal plant operation in the recording item 71, and uses the stored recording data to perform analysis processing for identifying the cause of failure of the control target device 9, Perform analysis processing to detect signs. At this time, the analysis device 7 searches the recording device database 60 using the plant state information as a key, and stores the acquired recording data to be analyzed in the analysis device database 70.
  • recorded data of the plant state that is the same as or similar to the plant state when the failure has occurred in the past is retrieved from the analysis device database 70 and acquired.
  • the analysis device 7 uses the recorded data for the analysis processing, as shown in FIG. 10 to be described later, the sample data is retrieved from the analysis device database 70 and comparison sample data is created from the acquired past recorded data. Comparison sample data can be compared. Further, in the analysis process for detecting a failure sign of the control target device 9, the recording data stored in the analysis device database 70 during normal operation of the plant and the recording device database for the analysis device 7 to detect the failure sign. It becomes possible to compare with the data acquired from 60.
  • the functions of the maintenance device 2, the data recording device 6, and the analysis device 7 may be realized by individual devices, or two or more functions may be realized by one device.
  • the maintenance device 2, the measurement monitoring control device 3, the process chart creation management device 4, the data recording device 6, and the analysis device 7 may be the same or different for each device.
  • the operation monitoring terminal 5 performs operation monitoring of the plant including the control target device 9 through the measurement monitoring control device 3.
  • the operation monitoring terminal 5 warns of the occurrence of the failure that occurred in the control target device 9, as shown in FIG. 9 described later, and information on the control target device 9 in which the failure occurred.
  • the analysis device 7 accumulates the information received from the operation monitoring terminal 5 in the analysis device database 70, and the failure cause of the failure that occurred in the past is the same as or similar to the failure that was alarmed by the operation monitoring terminal 5. It can be identified from the cause information.
  • the recorded data recorded in the recording device database 60 of the data recording device 6 will be described.
  • the recording items 61 stored in the recording device database 60 include, for example, the logic operation values of the control logic 21 in addition to the measurement items A and B.
  • the measurement item A is composed of recorded data 62.
  • the recorded data 62 corresponding to the measurement item A includes additional information in addition to the signal identifier, time series value, acquisition time, attribute a, attribute b, and attribute c.
  • a signal identifier is information used in order to identify the recording item of the test implemented with respect to a plant, for example.
  • the time series value is a value at the acquisition time of the measurement item A.
  • the acquisition time is the time when the measurement monitoring control device 3 acquires the measurement item A from the sensor group 8.
  • the attribute is detailed information of the measurement item A.
  • the additional information is a part of attribute information provided along with the measurement item A.
  • the additional information includes, for example, (1) information representing work in the plant such as test (test), construction, and curing, and (2) information representing the type of stop state such as partial stop of the facility and full stop. . Further, the additional information includes, for example, (3) information indicating the type of operation state such as limited operation due to production volume, output limitation, partial load operation, in-house single operation, etc., (4) replacement of turbine blades, soot blower Information indicating the type of equipment maintenance such as cleaning the heat transfer surface is included. Further, the additional information includes, for example, (5) information indicating a start mode such as cold start or hot start of the plant, and (6) information indicating an abnormal state of the plant or device such as a device failure or a runback operation. It is.
  • the additional information includes a plant state information storage unit, a failure cause information storage unit, and a related signal information storage unit.
  • the plant status information storage unit stores plant status information indicating plant status such as plant events or status, such as tests, construction work, partial shutdown of equipment, and limited operation such as production / output limits. Is done.
  • the plant state information is used by the data recording device 6 to search and acquire target recording data from the recording data stored in the recording device database 60 as a key. Then, by including the plant state information in the additional information, it becomes possible to identify different recording items for each plant state.
  • the failure cause information storage unit stores failure cause information indicating a failure cause of a failure that has occurred in the past in the control target device 9 such as a measurement item or device that has occurred in the plant and caused the failure in the past.
  • the failure cause information is information obtained by storing the measurement item or device information causing the failure in the failure cause information storage unit for each failure.
  • the related signal information storage unit in the planning documents such as the piping system diagram and the control system diagram to which the measurement item and the logic operation value belong, the related signals of the plurality of control target devices 9 such as the measurement item and the logic operation value are related to each other.
  • the related signal information to be represented is stored. Since the measurement item is related to the piping system and the control system as the related signal information, the maintenance device 2 and the analysis device 7 can read the recording data related to the measurement item and the logic operation value from the data recording device 6. .
  • a recording item 71 having the same configuration as the recording item 61 stored in the recording device database 60 is configured in the analysis device database 70 of the analysis device 7. For this reason, the plant state information is searched and acquired from the recorded data stored in the analysis device database 70 by using the analysis device 7 as a key.
  • the recorded data is the same plant state as the plant state at the time when the recorded data to be analyzed is stored. Used to do.
  • the analysis device 7 uses the recording data acquired from the data recording device 6 for failure sign analysis, the analysis device 7 searches the analysis device database 70 and uses the acquired past recording data as comparison sample data (described later). (See FIG. 10).
  • the failure cause information is used by the analysis device 7 as a key to search and acquire the cause of the failure that has occurred in the past from the recorded data stored in the analysis device database 70.
  • the analysis device 7 performs the cause identification analysis of the failure, it is possible to search and acquire the cause of the failure that has occurred in the past from the analysis device database 70.
  • the maintenance device 2 can also acquire information included in the recording item 71 from the analysis device 7 or information included in the recording item 61 from the data recording device 6. As shown in FIG. 1, the maintenance device 2 does not include a database. However, as with other devices, the maintenance device 2 may include a maintenance device database, and the recording items may be configured in the maintenance device database. In the following description, when the recording items 61 and 71 are not distinguished, they are described as “recording items”.
  • FIG. 2 is a block diagram illustrating a hardware configuration example of the computer C.
  • the computer C is hardware used as a so-called computer.
  • the computer C includes a CPU (Central Processing Unit) C1, a ROM (Read Only Memory) C2, and a RAM (Random Access Memory) C3 respectively connected to the bus C4. Further, the computer C includes a display unit C5, an operation unit C6, a nonvolatile storage C7, and a network interface C8.
  • CPU Central Processing Unit
  • ROM Read Only Memory
  • RAM Random Access Memory
  • the CPU C1 reads out the program code of software that realizes each function according to the present embodiment from the ROMC2, and executes it.
  • the RAM C3 variables, parameters, and the like generated during the arithmetic processing are temporarily written.
  • the display unit C5 is, for example, a liquid crystal display monitor, and displays a result of processing performed by the computer C to the user.
  • a keyboard, a mouse, or the like is used for the operation unit C6, and a user can perform predetermined operation inputs and instructions.
  • a user of the maintenance device 2, the data recording device 6, and the analysis device 7 displays a screen based on a predetermined user interface set for each device on the display unit C5, and receives an operation input from each user through the operation unit C6. .
  • nonvolatile storage C7 for example, a hard disk drive (HDD), a solid state drive (SSD), a flexible disk, an optical disk, a magneto-optical disk, a CD-ROM, a CD-R, a magnetic tape, a nonvolatile memory, or the like is used. It is done.
  • OS Operating System
  • a program for causing the computer C to function is recorded in the nonvolatile storage C7.
  • the recording device database 60 and the analysis device database 70 are configured in the nonvolatile storage C7.
  • the maintenance device 2 may configure the recording items in the nonvolatile storage C7.
  • the network interface C8 for example, a NIC (Network Interface Card) or the like is used. Each device can transmit and receive various data via the network interface C8 via the measurement monitoring network N, a dedicated transmission line, and the like.
  • FIG. 3 is an explanatory diagram showing a first configuration example of recorded items.
  • the maintenance device 2, the data recording device 6, and the analysis device 7 have each recorded item that can register plant state information at each acquisition time of the plant state information.
  • the plant state information storage unit of the measurement item A the fact that the plant state information is the test A is stored in the recorded item for each time series value acquisition time.
  • FIG. 4 is an explanatory diagram showing a second configuration example of recorded items. Also in the second configuration example of the recording items, the maintenance device 2, the data recording device 6, and the analysis device 7 have respective recording items that can register the plant state information at each acquisition time of the plant state information. However, in FIG. 4, as shown in the measurement items A to C, logic operation values of a plurality of measurement items are stored as time series values. For this reason, test A is not stored for each measurement item as shown in FIG. 3, but the plant state information of a plurality of measurement items in the time zone in which test A is performed is collectively recorded as test A. Stored.
  • the maintenance device 2, the data recording device 6, and the analysis device 7 hold plant state information for each unit of plant state information.
  • the maintenance device 2, the data recording device 6, and the analysis device 7 include time zone information indicating a time zone in which the test A occurs, and a signal identifier group used for the test A Are collected and recorded.
  • the recorded items may contain plant state information at the time when plant maintenance or the like occurs.
  • the value of the measurement signal obtained from the boiler may change before and after cleaning the boiler. That is, the efficiency of the boiler is low before the boiler is cleaned, but the efficiency of the boiler is increased after the boiler is cleaned.
  • the recording data before cleaning of the boiler and the recording data after cleaning are not continuous, and the recording data extending before and after cleaning cannot be used as an analysis target.
  • the recorded items include information indicating that the collected data collection conditions related to plant equipment maintenance have changed before and after the occurrence of equipment maintenance.
  • a method for registering plant state information in the recording items of the analysis device 7 For example, a method in which the user of the maintenance device 2 manually inputs and registers the recording items of the analysis device 7, and the analysis device 7 automatically reads the plant state information from other devices that record the plant state information. There is a method of registering the recorded items. Further, there is a method in which the analysis device 7 automatically reads already registered information (for example, a signal identifier) and registers it in a recording item.
  • already registered information for example, a signal identifier
  • FIG. 5 is an explanatory diagram illustrating an example of a process in which the maintenance device 2 acquires plant state information from the analysis device 7 using already registered information.
  • the recorded items of test A when the maintenance device 2 has performed the test A on the plant in the past are registered in the analysis device database 70.
  • the recorded items of test A are registered in the analysis device database 70 by a method in which a user of the maintenance device 2 manually inputs recorded data or a method in which the maintenance device 2 automatically reads information recorded by other devices. ing.
  • the analysis device database 70 shown in FIG. 5 shows a table with signal identifiers as columns and signal acquisition times as rows. From this table, for example, between 11:00 and 12:00, signal identifiers ID-A, ID-B, ID-C, ID-D (hereinafter abbreviated as “signal identifiers ID-A to ID-D”). It is indicated that the plant state of the plant that outputs the specific signal identified in (1) is test A.
  • the user of the maintenance device 2 uses ID-A to ID- including the test A as plant state information as a signal identifier of a signal output from the plant used for the test A.
  • D combination information is registered in the maintenance device 2 in advance.
  • the maintenance device 2 transmits the combination information of the signal identifiers to the plant state search unit 72 of the analysis device 7.
  • the signal identifier combination information includes, for example, signal identifiers ID-A to ID-D.
  • the signal identifier combination information may be individually registered by the user of the maintenance device 2 for each recording item, or may be registered together as signal identifiers ID-A to ID-D registered in advance as a group.
  • the analysis device 7 receives the signal identifier combination information from the maintenance device 2. Then, the plant state search unit 72 included in the analysis device 7 obtains plant state information common to the signal identifiers ID-A to ID-D from the analysis device database 70 at the same time based on the combination information of the signal identifiers. Search for. As illustrated in FIG. 5, the plant state search unit 72 acquires “test A” as plant state information.
  • the analysis device 7 transmits “test A” acquired by the plant state search unit 72 to the maintenance device 2.
  • the maintenance apparatus 2 can acquire “test A” as the plant state information corresponding to the signal identifiers ID-A to ID-D.
  • the form in which the analysis device 7 records the failure cause information in the analysis device database 70 and the registration method may be the same as the form in which the maintenance device 2 records the plant state information and the registration method, respectively.
  • the form in which the analysis apparatus 7 records the related signal information in the analysis apparatus database 70 may be a form in which the related signal information is stored for each recording item 71 as an attribute that can be registered.
  • the method in which the analysis device 7 registers the related signal information in the analysis device database 70 may be the same as the method in which the maintenance device 2 registers the plant state information.
  • FIG. 6 is an explanatory diagram illustrating an example of processing in which a user of the analysis device 7 selects a signal necessary for analysis and registers it as recorded data in the analysis device database 70.
  • the user of the analysis device 7 In order for the user of the analysis device 7 to register the recording items held by the maintenance device 2 or the data recording device 6 in the analysis device database 70, the measurement items and logic operation values on the control logic 21 are registered. It is necessary to know whereabouts. Conventionally, when the user of the analysis device 7 registers a signal in a recording item, the user checks the signal identifier recorded in the recording item by the maintenance device 2 or the signal identifier common to the maintenance device 2 and the analysis device 7. The signal identifier was input by operating the analysis device 7.
  • a user of the analysis device 7 can obtain a signal necessary for analyzing recorded data from the control logic 21 managed by the maintenance device 2, for example.
  • a location can be selected.
  • the control logic 21 includes an input / output list 22, an operation block output terminal 23, a logic sheet connection terminal 24, and the like.
  • the signal at the location selected by the user of the analysis device 7 is transmitted through the measurement / monitoring network N shown in FIG. 1 or a transmission line (not shown) directly connecting the maintenance device 2 and the analysis device 7. Are registered in the recording item 71.
  • the user of the analysis device 7 can use the user interface prepared in advance for the analysis device 7 that is familiar to him / her, it becomes easy to register the recording items of the data recording device 6 in the analysis device database 70. For this reason, the user of the analysis device 7 can divert the recording items set by the worker of the maintenance device 2 to the analysis.
  • maintenance personnel and adjustment workers of a plant that uses the maintenance device 2 have registered recording items in the maintenance device 2 or the data recording device 6 in order to adjust plant trial operation, check operation of the control program, and the like.
  • the plant trial operation was performed after the installation of the control target device 9.
  • a threshold set for a measured value or a calculated value, a device activation state or a stop state, or a device activation timing or a stop timing are used.
  • the conventional maintenance worker and the adjustment worker discarded the recorded data registered in the maintenance device 2 or the data recording device 6 after the plant trial operation was completed.
  • the analysis device 7 when plant maintenance personnel or adjustment workers perform plant test operations or perform plant maintenance, various plant states occur in the plant. For this reason, the analysis device 7 according to the present embodiment also saves the recorded data of the recorded items registered in the maintenance device 2 by the plant maintenance personnel and the adjustment workers in the analysis device database 70. As a result, it is considered that the analysis device 7 can collect a wider variety of recorded data than the recording device database 60 and use the collected recorded data for various analyses.
  • FIG. 7 is an explanatory diagram illustrating an example in which the analysis device 7 acquires a failure cause by using the failure sign analysis target data.
  • the failure sign analysis target data 73 which is the target of the device failure sign analysis process by the analysis device 7, is composed of a plurality of recorded data collected in the time zone to be analyzed.
  • the failure sign analysis target data 73 is a part of recorded data stored in the analysis device database 70, and currently includes recorded data A acquired by the analysis device 7 from the data recording device 6.
  • the plant state of the recorded data A is “heat soak”.
  • the analysis device 7 needs the recorded data of the past date and time in the same plant state as the date and time when the recorded data is stored in the analysis device database 70 in performing the analysis process for detecting the failure sign. Become.
  • the plant state search unit 72 reads the event or state of the plant stored in the plant state information storage unit included in the recorded data to be analyzed from the failure sign analysis target data 73. Then, the plant state search unit 72 searches past recorded data in which the plant state is “heat soak” from the analysis device database 70 by using the character string “heat soak” of the read plant state information. Then, the plant state search unit 72 provides the recorded data of “heat soak” extracted from the analysis device database 70 to the user of the analysis device 7. Thereby, the user of the analysis apparatus 7 can grasp the date and time when “heat soak” has occurred in the past.
  • recorded data at the time of plant trial operation and operation check test is stored in the analysis device database 70.
  • the analysis device 7 compares the recorded data stored in the analysis device database 70 with the recorded data acquired in the same trial operation or operation check test that is scheduled to be performed in the future, and the analysis device 7 is controlled. It can be used for analysis processing when a failure sign of the device 9 is detected.
  • the user of the analysis device 7 investigates the time zone that matches the plant state to be analyzed from the operation record not using the analysis device 7 such as the operation status work results, and records the data recorded in this time zone. It was taken out from the device 6 or the maintenance device 2.
  • the user of the analysis device 7 according to the present embodiment is necessary to reduce the work for investigating the time zone that matches the plant state to be analyzed and to perform analysis processing for detecting a failure sign. Recording data can be easily obtained.
  • FIG. 8 is an explanatory diagram showing an example of processing in which the process chart creation management device 4 creates the actual process chart 42.
  • the process schedule creation management device 4 creates and holds a scheduled process schedule 41 for tests and constructions in advance in order to carry out operations such as plant trial operation and periodic inspection systematically and efficiently.
  • the scheduled process table 41 includes scheduled work dates and work items.
  • the work item includes plant state information.
  • the user of the process schedule creation management device 4 that performs the plant trial operation operates the process schedule creation management apparatus 4 to select the scheduled process schedule 41 including items to be registered in the recording items 61 of the data recording device 6.
  • the scheduled process table 41 selected by the worker is transmitted to the analysis device 7 via the measurement monitoring network N.
  • the analysis device 7 takes in the plant state information given to the scheduled process table 41 of the process table creation management device 4 as plant state information of the analysis device 7.
  • the user of the analysis device 7 performs an operation for searching for each work item included in the scheduled process table 41 from the recorded items 71 stored in the analysis device database 70.
  • the plant state search unit 72 of the analysis device 7 searches the analysis device database 70 as the plant state information corresponding to the work included in the scheduled process table 41 using the work item or work date as a key. At this time, test B is used as a key. Then, the plant state search unit 72 acquires the measurement items A to C and the recorded data whose keys match the plant state information from the analysis device database 70. Thereafter, the analysis device 7 transmits to the data recording device 6 both the signal identifier and the recorded data corresponding to the acquired measurement items A to C.
  • the data recording device 6 registers the plant state information corresponding to the measurement items A to C received from the analysis device 7 in the recording item 61 of the data recording device 6.
  • the user of the data recording device 6 does not need to operate the data recording device 6 to register the recording item 61 whose plant state information is the test B in the recording device database 60. For this reason, the user of the data recording device 6 can reduce the registration work amount of the recording item 61 that was necessary when each work included in the scheduled process table 41 was performed. Thereafter, the data recording device 6 transmits the recorded data recorded in the analysis device database 70 to the process table creation management device 4 corresponding to the plant state information searched by the plant state searching unit 72.
  • the analysis device 7 registers the recording item 71 including the test B acquired from the process chart creation management device 4 as a work item. For this reason, the user of the analysis apparatus 7 can also reduce the work amount for registering the recording item 71.
  • the analysis device 7 provides the process table creation management device 4 with the results of the work items when the maintenance device 2 performs the work such as the test and the construction in the plant trial operation and the periodic inspection through the data recording device 6.
  • the process chart creation management device 4 creates an actual process table 42 based on the recorded data passed from the data recording device 6. For example, after the test B is completed, the data recording device 6 transmits recorded data including the execution date and time of the test B to the process chart creation management device 4.
  • the process table creation management device 4 creates a performance process table 42 including the execution date and time corresponding to the work item of the test B based on the recorded data including the test B execution date and time. Then, the process chart creation management device 4 can easily manage the performance process of the test B using the performance process table 42. Further, the process table creation management device 4 can also manage the deviation between the scheduled process and the actual process of the work by comparing the scheduled process table 41 and the actual process table 42.
  • FIG. 9 is an explanatory diagram illustrating an example of analysis processing in which the analysis device 7 identifies the cause of failure of the control target device 9.
  • the measurement monitoring control device 3 monitors a failure or abnormality (hereinafter abbreviated as “failure”) of the control target device 9, and when a failure of the control target device 9 is detected, the operation monitoring terminal 5 An alarm is issued on the alarm screen together with the time of occurrence of the abnormality.
  • the maintenance staff of the plant uses the recorded data related to the failure after identifying the failure location by the alarm issued to the operation monitoring terminal 5 or the monitoring function of the control logic 21 stored in the maintenance device 2. Identify the cause of the failure.
  • the data recording device 6 stores the failure location and time of occurrence in the failure cause information storage section of the recorded data corresponding to the measurement item of the control target device 9 that caused the failure every time a failure occurs in the operation of the plant. To do. For example, it is assumed that an A pump failure is reported on the alarm screen of the operation monitoring terminal 5. When the cause of this A pump failure is in the measurement item A, the measurement monitoring control device 3 stores failure location information (A pump failure) in the failure cause information storage part of the recorded data of the measurement item A held by the analysis device 7. The information including the occurrence time of the A pump failure is stored.
  • the analysis device 7 When the analysis device 7 performs an analysis process for specifying the cause of the failure, the failure cause information storage unit of the recording item (the location where the failure occurs) to be analyzed is referred to. And the analysis apparatus 7 specifies the failure cause of the failure which occurred in the past which is the same as or similar to the failure warned by the operation monitoring terminal 5 from the failure cause information stored in the failure cause information storage unit. And the analysis apparatus 7 displays the failure cause specified on the display part C5. The user of the analysis device 7 can recognize the occurrence date and time of the failure that has occurred in the past and the measurement item that caused the failure based on the display content of the display unit C5. When the analysis target is the signal identifier ID-A, the analysis device 7 refers to the failure cause information storage unit of the recorded data of the measurement item A, and the measurement item A has caused the A pump failure in the past. It is also possible to recognize this.
  • the causes of failures that occurred in the past have been managed separately from the analysis device 7.
  • the user of the data recording device 6 refers to the management record of the data recording device 6 in order to investigate whether there is a cause that is the same as or similar to the failure that has occurred each time a failure occurs in the controlled device 9.
  • the user of the analysis device 7 executes an analysis process for identifying the cause of the failure using the user interface of the analysis device 7 that is familiar to the user, and the occurrence of a failure that has occurred in the past.
  • the date and time and the measurement item that caused the failure can be obtained from the recorded items.
  • work which the user of the analyzer 7 refers to the management record of the data recording device 6 can be reduced.
  • the user of the analysis device 7 can perform the necessary analysis processing even if he / she does not have knowledge on the basis of plant operation or maintenance experience, nor business knowledge that the maintenance staff should have such as plant piping, control target equipment 9 and sensor configuration. It can be performed.
  • FIG. 10 is an explanatory diagram illustrating an example of processing for creating comparison sample data.
  • the maintenance device 2 holds the plant state information in the recorded data when an event or warning occurs in the plant.
  • the analysis device 7 includes a comparison sample data creation unit 74 and a data comparison unit 75 in addition to the plant state search unit 72 described above.
  • the plant state search unit 72 searches the analysis device database 70 for past plant state information corresponding to the event notified from the maintenance device 2 and acquires recorded data including the past plant state information.
  • the comparison sample data creation unit 74 creates comparison sample data based on recorded data including past plant state information searched by the plant state search unit 72. For example, the comparison sample data creation unit 74 creates comparison sample data using data recorded during heat soak that occurred in the past. At this time, the comparison sample data creation unit 74 obtains the comparison sample data derived for each recording item and each process step in the range of the minimum value and the maximum value of the recording data in each process step when the past heat soak has occurred. create. Thereafter, the comparative sample data creation unit 74 collects events and alarms generated at each process step in the heat soak from the recorded data stored in the analysis device 7.
  • the data comparison unit 75 outputs a comparison result obtained by comparing the recorded data of the plant state notified from the maintenance device 2 with the sample data for comparison. For example, when the recording data at the time of heat soaking of the plant is an analysis target, the plant state search unit 72 uses the recording data stored in the analysis device database 70 in the past, and the recording data at the time of heat soaking ("heat soak" Read recorded data with plant status information). The plant state search unit 72 may search for a plurality of recorded data corresponding to the number of records of the plant state information to be analyzed that are recorded in the analysis device database 70.
  • the data comparison unit 75 compares the recorded data of the measurement items and logic operation values related to the analysis target device of the plant of the recorded data to be analyzed with the recorded data collected by the analysis device 7 and compares the result. Is output.
  • the analysis device 7 compares the plant state information when an event occurs in the plant (control target device 9) and the past plant state information to detect a failure sign, An analysis process for identifying the cause of failure of the device 9 is performed. At this time, the analysis device 7 creates a criterion (comparison sample data) for determining whether the analysis target plant state is in a normal state or an abnormal state. Then, the analysis device 7 compares the recorded data of the measurement items and logic calculation values related to the analysis target device of the plant of the recorded data to be analyzed with the recorded data collected by the analysis device 7.
  • FIG. 11 is an explanatory diagram showing a display example of the range of the minimum and maximum values of the sample data for comparison derived for each process step and the recorded data to be analyzed.
  • FIG. 11 is a screen displayed on the display unit C ⁇ b> 5 of the analysis device 7.
  • the data comparison unit 75 displays the range of the minimum value (Min) and the maximum value (Max) of the sample data for comparison and the recorded data 76 (represented by a solid line) to be analyzed as the recording time t.
  • the recorded data within the range between the minimum value and the maximum value of the sample data for comparison is normal, and the recorded data outside the range between the minimum value and the maximum value of the sample data for comparison is abnormal.
  • the recorded data in the process step 1 is normal because it is within the range of the minimum value and the maximum value of the sample data for comparison.
  • the recorded data 76 in the process step 3 is abnormal because it is outside the range of the minimum value and the maximum value of the sample data for comparison.
  • the allowable deviation set in the sample data for comparison is whether the plant state to be analyzed is in the normal state in the analysis process for detecting a failure sign. It can be used as a reference for determining whether there is an abnormal state. For this reason, the analysis device 7 does not depend on the threshold value set for the measurement value or the calculated value, the activation state or the stop state of the control target device 9, or the design criteria for the start timing or stop timing of the control target device 9. It is possible to obtain a criterion based on the operation results of the plant.
  • the analysis device 7 displays the comparison sample data on the display unit C5 by superimposing the recording data to be analyzed together with the recording data to be analyzed. This makes it easy to determine whether an event or alarm has occurred on the recorded data to be analyzed at each time.
  • collation processing can be used to determine whether the plant state to be analyzed is in a normal state or an abnormal state in the analysis processing for detecting a failure sign.
  • recorded data was recorded only for the period required by plant maintenance personnel and adjustment workers, such as adjustment of plant trial operation and operation check of control program, and discarded after the end of use.
  • the analysis device 7 creates comparison sample data using past recorded data, the comparison sample data can be used for comparison with recorded data to be analyzed.
  • the precision which determines whether the plant state of analysis object is a normal state or an abnormal state can be improved. It is also possible to expand the types of plant states to be analyzed (during testing, starting, normal operation, stopping, etc.).
  • the number of recorded data that the analysis device 7 reads from the analysis device database 70 is plural, and as the number increases, the accuracy of determining whether the plant state is normal or abnormal can be improved.
  • the plant state search part 72 can search efficiently the plant state stored in the database 70 for analyzers by using plant state information as a key.
  • the analysis device 7 may send comparison sample data and recorded data to the maintenance device 2 during plant operation as actual process data in each process of plant operation.
  • the maintenance device 2 may give guidance to the operator of the maintenance device 2 by displaying the comparative sample data and the recorded data on the display unit C5 of the maintenance device 2 during the plant operation.
  • the sample data for comparison can be used as one of the criteria for judging the quality of the result of the plant trial operation as a comparison target with the result data of the plant trial operation. For this reason, the recorded data at the time of normal plant operation stored in the analysis device 7 can be used as a comparison target with data obtained as a result of the plant trial operation.
  • the analysis device 7 records, as plant state information, information related to maintenance work in which the behavior of the plant operation varies depending on the work such as replacement of the turbine blades of the plant and soot cleaning of the soot blower heat transfer surface. Append to Then, the analysis device 7 creates comparative sample data for each piece of information related to maintenance work. As a result, the analysis device 7 displays the comparison sample data for each maintenance operation created in the same plant state on the display unit C5, so that an event that may be the reason for the deviation is displayed on the user of the analysis device 7. Can be given to.
  • FIG. 12 is an explanatory diagram illustrating an example in which the maintenance device 2 registers a recording item for each test.
  • the recorded items of the maintenance device 2 may differ depending on the plant state.
  • a plurality of recorded items may be registered in the analysis device 7.
  • the analysis apparatus 7 can identify the plant state at the time of recording of the recording data made into analysis object, and can utilize the plant state of the recording data made into analysis object. As an example of this, an example will be described in which the maintenance device 2 registers a recording item from the analysis device 7 for each test for each plant state information.
  • the maintenance device 2 registers a signal identifier in the analysis device 7, and acquires plant state information for each signal identifier searched by the analysis device 7 based on the signal identifier.
  • the signal identifiers ID-A, ID-B, ID-C, and ID-D are required to be registered in the recording items of the maintenance device 2 during the test A, and the signal identifiers ID-C and ID-X are used during the test B.
  • ID-Y and ID-Z are required to be registered in the recording items of the maintenance device 2.
  • the signal identifiers ID-A, ID-B, and ID-D are registered in the recording items during the test A period.
  • the recorded item of test A is deleted, and during the period of test B, signal identifiers ID-C, ID-X, ID-Y and ID-Z are registered in the recorded item.
  • the operation in which the maintenance device 2 registers the signal identifier in the analysis device 7 has been described with reference to FIG.
  • the analysis device database 70 of the analysis device 7 recorded items of test A and test B are registered, and recorded data in which plant state information is added to each recorded item is stored in the analysis device database 70. Is done.
  • the plant state search unit 72 can search the plant state information.
  • the analysis device 7 transmits plant state information corresponding to the signal identifier to the maintenance device 2.
  • the maintenance apparatus 2 can register the plant state information corresponding to the signal identifier. Note that the processing of the maintenance device 2 transmitting the signal identifier to the analysis device 7 and acquiring the plant state information corresponding to the signal identifier from the analysis device 7 can also be performed by the data recording device 6.
  • FIG. 13 is an explanatory diagram illustrating an example of processing for registering related signal information in a recording item.
  • the piping system diagram D1 includes pressure, temperature, flow rate, detectors such as valves and pumps in the plant, arrangement of the control target device 9, connection of piping, branch information, and the like.
  • the piping system diagram D1 shown in FIG. 13 shows a piping system of a pressure gauge, a control valve, and a flow meter.
  • the control system diagram / control block diagram D2 includes plant control logic 21 and parameter information.
  • a control system diagram / control block diagram D2 shown in FIG. 13 shows how the opening degree of the control valve A2 is adjusted based on the pressure A measured by the pressure gauge.
  • the operator operates the maintenance device 2 or the data recording device 6 to register the pressure A as a measurement item to be monitored in the recording item of the maintenance device 2 or the data recording device 6.
  • the analysis device 7 reads the related signal information of the control target device 9 related to the measurement item stored in the recording item of either the maintenance device 2 or the data recording device 6 from the related signal information storage unit. It is possible to obtain from For this reason, the measurement item and logic operation value which are highly relevant to each recording item are registered in the related signal information storage unit of the recording item in advance.
  • the maintenance device 2 or the data recording device 6 has a flow rate A1, a control valve A2 opening degree, a control valve A2 opening command value, a temperature A3 measurement item, a logic calculation value, etc. that are highly related to the pressure A.
  • the analysis device 7 determines the flow rate A1, the opening degree of the control valve A2, the opening command value of the control valve A2, the temperature A3, etc.
  • Measurement items, logic operation values, and the like can be read from the data recording device 6 and these values can be automatically registered in the recording items.
  • the analysis device 7 can easily register the recording item having high relevance to the measurement item and the logic operation value when registering the measurement item and the logic operation value to be monitored in the recording item. In this way, even users who do not have knowledge based on plant operation or maintenance experience, or maintenance knowledge of plant piping, controlled equipment 9, sensor configuration, etc., operate the analyzer 7 to operate the plant. Recording items necessary for monitoring and driving can be easily registered.
  • the setting operation for selecting and registering the recording item 71 in the analysis device 7 can be performed from the data recording device 6 or the maintenance device 2. For this reason, conventionally, it is possible to reduce the trouble of selecting and setting the recording items by the user of each apparatus. Then, the maintenance device 2 or the data recording device 6 supplies the recording data to the analysis device 7 so that the user of the analysis device 7 can easily use the recording data.
  • the recording items of the data recording device 6 can be used by the maintenance device 2, the data recording device 6, and the analysis device 7 for their respective purposes.
  • the user of the maintenance device 2, the data recording device 6, and the analysis device 7 obtains necessary information from the target recording items by using a user interface prepared in advance in a familiar device in a normal manner. be able to. Therefore, it is possible to improve convenience while reducing the work performed by each device.
  • recorded data that has been discarded after the end of the event can be stored in the analysis device database 70 and used for failure sign analysis performed by the analysis device 7.
  • the analysis device 7 can easily obtain recorded data necessary for performing failure sign analysis.
  • workers who do not have business knowledge such as knowledge based on plant operation or maintenance experience, plant piping, control target equipment 9, sensor group 8 configuration, etc., call related items at the relevant location when a failure occurs be able to.
  • the present invention is not limited to the above-described embodiments, and various other application examples and modifications can be taken without departing from the gist of the present invention described in the claims.
  • the above-described embodiments are detailed and specific configurations of the apparatus and the system in order to explain the present invention in an easy-to-understand manner, and are not necessarily limited to those having all the configurations described.
  • the control lines and information lines indicate what is considered necessary for the explanation, and not all the control lines and information lines on the product are necessarily shown. Actually, it may be considered that almost all the components are connected to each other.

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  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Testing And Monitoring For Control Systems (AREA)

Abstract

L'objet de la présente invention est de réduire le travail requis pour un processus d'analyse de données. Le système d'analyse de données (1) selon la présente invention comporte : un dispositif de maintenance (2) chargé de créer et de gérer une logique de commande/protection (21) et des paramètres pour un équipement (9) à commander ; un dispositif d'enregistrement de données (6) qui mémorise des informations supplémentaires utilisées par un dispositif d'analyse (7) pour rechercher des données ; et le dispositif d'analyse (7) qui analyse les données extraites du dispositif d'enregistrement de données (6). Le dispositif de maintenance (2) ou le dispositif d'enregistrement de données (6), à l'aide d'une interface utilisateur prédéfinie paramétrée pour chaque dispositif, sélectionne et paramètre des éléments d'enregistrement pour le dispositif d'analyse (7) de sorte que le dispositif d'analyse (7) mémorise ces éléments d'enregistrement. Le dispositif d'analyse (7) mémorise, pour chaque élément d'enregistrement paramétré par le dispositif de maintenance (2) ou le dispositif d'enregistrement de données (6), les données extraites du dispositif d'enregistrement de données (6), et effectue un processus d'analyse prédéfini.
PCT/JP2016/067486 2016-06-13 2016-06-13 Système d'analyse de données WO2017216830A1 (fr)

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