JP5339715B2 - Power unit data management system and method using ratio - Google Patents

Description

  The present invention relates to a data management system and method for a power plant unit using a ratio between operation data and a reference value in the power plant unit.

Conventionally, in operation data management of a power plant, whether or not there is an abnormality in operation data is determined based on experience by an operator. In order to discover abnormalities in the operation data, it is not preferable from the viewpoint of efficiency to rely only on the experience of the operator. Therefore, Japanese Patent Application Laid-Open No. H10-228667 discloses a technique for managing the operation data by a computer and evaluating the presence / absence of abnormality and the degree of abnormality.
JP 2005-267241 A

  However, in the technique disclosed in Patent Document 1, although individual operation data is managed, in the case where the units are different depending on a plurality of types of operation data corresponding to a plurality of operation facilities, a plurality of types of operations having different units are performed. There is a problem that data cannot be managed centrally.

  According to the present invention, in a power plant unit, a plurality of types of operation data at a predetermined time in a normal operation state are used as a plurality of types of reference operation data, respectively. By calculating the ratio for each of the multiple operating facilities, the operator manages the multiple types of operation data in a centralized manner regardless of the units of the multiple types of operation data. However, an object of the present invention is to provide a data management system that can easily evaluate the presence or absence of abnormality in the operation data and the degree of abnormality.

  Specifically, the present invention provides the following.

(1) A data management system for a power plant unit according to the present invention includes reference setting means, ratio calculation means, and display means, and manages a plurality of operation data groups.
Each operation data group of the plurality of operation data groups corresponds to a plurality of operation data respectively corresponding to a plurality of operation facilities provided in the power plant unit.
The reference setting means sets a plurality of types of operation data at a predetermined time in a normal operation state as a plurality of types of reference operation data,
The ratio calculation means calculates a ratio between each of a plurality of types of operation data at a predetermined time in an arbitrary operation state and each of a plurality of types of reference operation data according to each of a plurality of operation facilities,
The display means displays a ratio corresponding to each of the plurality of operating facilities on one screen.

  According to the invention of (1), in the power plant unit, each of a plurality of types of operation data at a predetermined time in a normal operation state is used as a plurality of types of reference operation data, and a plurality of types of operation data at a predetermined time in an arbitrary operation state By calculating the ratio of each of the operation data according to each of the plurality of operation facilities, it is possible to manage a plurality of types of operation data in an integrated manner regardless of the units of the plurality of types of operation data. In addition, by displaying the ratio according to each of the plurality of operating facilities on one screen, it is possible to know the deviation from each of the values of the plurality of types of reference operation data. The degree of abnormality can be easily evaluated.

  (2) The display means displays the calculated ratio as a graph on one screen as a difference between the plurality of types of reference operation data and the plurality of types of operation data in the arbitrary operation state ( A data management system for a power plant unit as described in 1).

  According to the invention of (2), since the ratio according to each of the plurality of operating facilities calculated by the ratio calculating means is displayed in a graph on one screen, the operation management of the entire power plant unit can be performed centrally. And the tendency of the unit can be easily grasped.

  (3) The display means tabulates the calculated ratio in the order of large deviation between the plurality of types of reference operation data and the plurality of types of operation data in the arbitrary operation state. The data management system for a power plant unit according to (1) or (2).

  According to the invention of (3), since the ratio according to each of the plurality of operating facilities calculated by the ratio calculating means is displayed as a table on one screen, the operation has a deviation from the value of the reference operation data. Data can be discovered efficiently, and it becomes easy to evaluate the presence / absence of abnormality in the operation data and the degree of abnormality.

(4) The power plant unit data management method according to the present invention includes a reference setting step, a ratio calculation step, and a display step, and manages a plurality of operation data groups.
Each operation data group of the plurality of operation data groups corresponds to a plurality of operation data respectively corresponding to a plurality of operation facilities provided in the power plant unit.
The reference setting step sets a plurality of types of operation data at a predetermined time in a normal operation state as a plurality of types of reference operation data,
The ratio calculation step calculates a ratio between each of a plurality of types of operation data at a predetermined time in an arbitrary operation state and each of a plurality of types of reference operation data according to each of a plurality of operation facilities,
The display step displays a ratio corresponding to each of the plurality of operating facilities on one screen.

  According to the invention of (4), the same effect as that of the invention of (1) can be expected.

  (5) In the display step, the calculated ratio is displayed as a graph on one screen as a difference between the plurality of types of reference operation data and the plurality of types of operation data in the arbitrary operation state ( A data management system for power plant units as described in 4).

  According to the invention of (5), the same effect as that of the invention of (2) can be expected.

  (6) In the display step, the calculated ratio is tabulated in descending order of the plurality of types of reference operation data and the plurality of types of operation data in the arbitrary operation state. The data management system for a power plant unit according to (4) or (5).

  According to the invention of (6), the same effect as that of the invention of (3) can be expected.

  According to the present invention, in a power plant unit, a plurality of types of operation data at a predetermined time in an arbitrary operation state are used as a plurality of types of operation data at a predetermined time in a normal operation state, respectively. Since the ratio of each is calculated in accordance with each of the plurality of operating facilities, it is possible to manage a plurality of types of operation data in an integrated manner regardless of the units of the plurality of types of operation data. In addition, by displaying the ratio according to each of the plurality of operating equipment on one screen, the deviation from each of the values of the plurality of types of reference operation data can be understood, so that an operator with little experience value can operate a plurality of types of operations. The presence or absence of each data abnormality and the degree of abnormality can be easily evaluated.

  Hereinafter, an example of an embodiment of the present invention will be specifically described with reference to the accompanying drawings.

  FIG. 1 is a diagram showing an overall configuration of a data management system 1 according to an embodiment of the present invention. The data management system 1 includes a power plant unit 10 and a data management device 100. Furthermore, the power plant unit 10 and the data management device 100 are connected via a communication line. According to FIG. 1, the power plant unit 10 includes a plurality of control systems such as a boiler master control system 200 and a fuel / water ratio control system 210. The operation data in the present embodiment is data used by these control systems.

  FIG. 2 is a block diagram showing the configuration of the data management system 1 according to the embodiment of the present invention. The data management system 1 includes a power plant unit 10 and a data management device 100. According to FIG. 2, the power plant unit 10 includes a boiler master control system 200, a fuel / water ratio control system 210, a turbine master control system 220, a water supply control system 230, and other control systems. Furthermore, the data management apparatus 100 includes a control unit 101, a reference setting unit 112, a ratio calculation unit 114, a communication unit 104, an operation data collection unit 125, a storage unit 107, an output unit 102, and an input unit 110. And.

  The operation data collection unit 125 performs a process of receiving each of a plurality of types of operation data from a plurality of control systems such as the boiler master control system 200 via a communication line among the processes performed by the communication unit 104. The reference setting unit 112 performs a process of setting a plurality of types of reference operation data corresponding to a plurality of types of operation data among the processes performed by the control unit 101, and the ratio calculation unit 114 is performed by the control unit 101. Among the processes, a process of calculating a ratio between each of the plurality of types of operation data and each of the plurality of types of reference operation data according to the plurality of operation facilities is performed.

  The ratio calculation unit 114 includes a plurality of types of operation data collected by the operation data collection unit 125 from a plurality of control systems such as the boiler master control system 200, and a plurality of types of reference operation data calculated by the reference setting unit 112. The ratio is calculated, and the control unit 101 outputs a ratio corresponding to each of the plurality of operating facilities on one screen. As a result, regardless of the units of multiple types of operation data, multiple types of operation data can be managed centrally, and each of multiple types of operation data and multiple types of reference operation data (reference values). Therefore, an operator with little experience value can easily evaluate the presence or absence of abnormality and the degree of abnormality for each of a plurality of types of operation data.

  FIG. 3 is a flowchart illustrating processing performed by the data management apparatus 100.

  In step S10, the control unit 101 collects a plurality of operation data groups, and moves the process to step S20.

  More specifically, the control unit 101 includes a boiler master control system 200, a fuel / water ratio control system 210, a turbine master control system 220, and a water supply control system 230, and a plurality of types corresponding to the plurality of types of control systems. The operation data is received via the communication unit 104 (operation data collection unit 125) at a predetermined time interval (one day interval) and stored in the storage unit 107. Thereby, the data management system 1 which concerns on this invention can manage one driving | operation data group which is the said several types of driving | operation data every day.

  In step S20, the control unit 101 (reference setting unit 112) sets reference operation data, and the process proceeds to step S30.

  More specifically, the control unit 101 (reference setting unit 112), among a plurality of types of operation data for each day stored in the storage unit 107 in step S10, a plurality of types of operation data at a predetermined point in the normal operation state. Are set as a plurality of types of reference operation data, and the plurality of types of reference operation data are stored in the storage unit 107. For example, the operation according to the boiler master control system 200, the fuel water ratio control system 210, the turbine master control system 220, and the water supply control system 230 at a predetermined point in normal operation (January 15, 2005), respectively. The data is stored in the storage unit 107 as reference operation data. Thus, the data management system 1 according to the present invention can manage a plurality of types of reference operation data corresponding to each of a plurality of types of control systems.

  In step S30, the control unit 101 (ratio calculation unit 114) calculates a ratio between each of the plurality of types of operation data and each of the plurality of types of reference operation data according to each of the plurality of operation facilities, and performs processing. Move on to step S40.

  More specifically, the control unit 101 (ratio calculation unit 114) determines a plurality of types of operation data at a predetermined time in an arbitrary operation state from a plurality of types of operation data for each day stored in the storage unit 107 in step S10. And the ratio between each of the extracted plural types of operation data and each of the plurality of types of reference operation data stored in the storage unit 107 in step S20 is calculated according to each of the plurality of types of control systems. . Thereby, the data management system 1 which concerns on this invention can calculate the ratio according to each of several types of control systems. In addition, the calculation method of a ratio (ratio increase / decrease rate) is mentioned later.

  In step S40, the control part 101 ranks the ratio (ratio increase / decrease rate) according to each of several driving equipment, and moves a process to step S50.

  More specifically, the control unit 101 calculates the absolute value of the ratio (ratio increase / decrease rate) calculated in step S30, and ranks the calculated absolute values in descending order. For example, ranking is performed until the one with the highest absolute value of the ratio becomes rank 1 and rank 2 with the smallest absolute value of the ratio, such as rank 2 in descending order.

  In step S50, the control unit 101 performs a process of displaying the calculated ratio (ratio increase / decrease rate) as data, and ends the process.

  More specifically, the control unit 101 extracts data corresponding to a plurality of types of operation data from a daily ratio data table for each operation data, which will be described later in FIG. A graph and a table of a ratio (ratio increase / decrease rate) according to the operation data are displayed on a data monitoring screen (not shown) via the output unit 102. Thereby, the operator with few experience values can easily evaluate the presence or absence and the degree of abnormality of each of a plurality of types of operation data by looking at the data monitoring screen.

  With reference to FIG. 4, the fluctuation value of the value (ratio and actual value) of operation data is demonstrated.

  FIG. 4 is a diagram showing fluctuation values of values (ratio and actual value) of a plurality of types of operation data. Here, the case of “fuel ratio command” as operation data will be described. The actual variation value of the fuel ratio command is -2.40% to + 0.90%. Further, the reference value is + 0.3%, and this reference value is the value of the fuel / water ratio command at a certain time (for example, January 15, 2005). Furthermore, the fluctuation values of the graph (ratio) are −9 to +2.

  In this embodiment, the ratio of the operation data (rate increase / decrease rate) indicates how far the reference value (the value of the operation data at a certain point in the normal operation state) deviates (the difference from the reference value). Represents. Here, the calculation method of the ratio (ratio increase / decrease rate) is calculated by {(actual value) / (reference value) −1}.

Next, the operation data ratio (ratio increase / decrease rate) will be described. For example, when the value of the fuel ratio command is + 0.3%, it matches the reference value + 0.3%, so the deviation from the reference value is zero. The value “0” is calculated by substituting each value into the above-described calculation formula.
Further, when the value of the fuel ratio command is -2.40%, it is calculated as -9 from the above calculation formula.

  Here, each of the plural types of operation data shown in FIG. 4 will be described. “A-SH gas damper opening” refers to the degree to which the gas damper installed at the outlet of the exhaust gas system of the boiler installed in the power plant is open. “B-SH gas damper opening” is substantially the same as the A-SH gas damper opening. The difference is the difference in the exhaust gas system of the boiler. The “fuel ratio command” refers to the command value of the fuel ratio control, and the fuel ratio control is the amount of combustion among the feed water flow rate and the combustion amount, which are factors that determine the steam temperature of the once-through boiler. This refers to the control to be changed. “ECO outlet gas 02 (A) average” refers to the ratio of oxygen contained in the flue gas discharged from the furnace.

  With reference to FIG. 5, the data table of the daily ratio according to operation data is demonstrated.

  Among the operation data shown in FIG. 5, for example, for the operation data of the fuel ratio command, the ratio on January 15, 2005 is “0”, the ratio on January 20, 2005 is “1”, and 2005 1 The ratio on month 25 is “−1”, and the ratio on January 30, 2005 is “−2”.

  With reference to FIG. 6, the graph and table | surface of a ratio increase / decrease rate are demonstrated.

  The ratio increase / decrease graph shown in FIG. 6 is displayed as a line graph for each of a plurality of types of operation data, with the horizontal axis representing the date and the vertical axis representing the ratio increase / decrease ratio. Each of the plural types of operation data is displayed as a table in descending order of the rate of increase / decrease rate in January 30, 2005. Here, along with the ratio increase / decrease rate table, a line graph 81 of the A-SH gas damper opening, a line graph 82 of the B-SH gas damper opening, a line graph 83 of the fuel ratio command, an average of the ECO outlet gas 02 (A) A line graph 84 is displayed.

  For example, the line graph 83 of the fuel ratio command is displayed based on the ratio (ratio increase / decrease rate) shown in FIG. Here, according to FIG. 5, for the fuel ratio command, the ratio of January 15, 2005 is “0”, the ratio of January 20, 2005 is “1”, and the ratio of January 25, 2005 is Is “−1”, and the ratio of January 30, 2005 is “−2”.

  Returning to FIG. 6, the line graphs 81 to 84 for each of a plurality of types of operation data represent the divergence from the reference value (the value of the operation data at a certain point in the normal operation state). Therefore, since the line graph shows that the further away from the horizontal axis (the line where the ratio increase / decrease rate value is 0), the operation data value is further away from the normal operation state value, the operator By looking at the graphs 81 to 84, it is possible to evaluate the presence or absence of abnormality in the operation data and the degree of abnormality.

  In addition, by referring to the rate increase / decrease rate table, the specific value of each rate increase / decrease rate of multiple types of operation data on a certain date can be found in descending order of the absolute value of the value. By referring to the table together with the graph, it is possible to more easily evaluate the presence / absence of the operation data and the degree of the abnormality.

  7 to 13 are diagrams showing operation data in the present embodiment.

  FIG. 14 is a diagram showing an example of a hardware configuration of the data management apparatus 100 according to the preferred embodiment of the present invention described in FIG. The data management apparatus 100 includes a CPU (Central Processing Unit) 1010 constituting the control unit 101 (a plurality of CPUs such as a CPU 1012 may be added in a multiprocessor configuration), a bus line 1005, a communication I / F 1040, a main memory 1050, A BIOS (Basic Input Output System) 1060, a USB port 1090, an I / O controller 1070, a keyboard and a mouse 1100, and other input means and a display device 1022 are provided.

  Storage means such as a tape drive 1072, a hard disk 1074, an optical disk drive 1076, and a semiconductor memory 1078 can be connected to the I / O controller 1070.

  The BIOS 1060 stores a boot program executed by the CPU 1010 when the data management apparatus 100 is activated, a program depending on the hardware of the data management apparatus 100, and the like.

  The hard disk 1074 constituting the storage unit 107 stores various programs for the data management apparatus 100 to function as a server and programs for executing the functions of the present invention, and can further configure various databases as necessary. .

  As the optical disc drive 1076, for example, a DVD-ROM drive, a CD-ROM drive, a DVD-RAM drive, or a CD-RAM drive can be used. In this case, the optical disk 1077 corresponding to each drive is used. A program or data may be read from the optical disk 1077 by the optical disk drive 1076 and provided to the main memory 1050 or the hard disk 1074 via the I / O controller 1070. Similarly, the tape medium 1071 corresponding to the tape drive 1072 can be used mainly for backup.

  The program provided to the data management apparatus 100 is provided by being stored in a recording medium such as the hard disk 1074, the optical disk 1077, or a memory card. This program may be installed in the data management apparatus 100 and executed by being read from the recording medium via the I / O controller 1070 or downloaded via the communication I / F 1040.

  The aforementioned program may be stored in an internal or external storage medium. Here, as a storage medium constituting the storage unit 107, a magneto-optical recording medium such as an MD or a tape medium can be used in addition to the hard disk 1074, the optical disk 1077, or the memory card. Further, a storage device such as a hard disk 1074 or an optical disk library provided in a server system connected to a dedicated communication line or the Internet may be used as a recording medium, and the program may be provided to the data management apparatus 100 via the communication line. .

  Here, the display device 1022 displays a screen for accepting data input to the user, or displays a screen of a result of arithmetic processing by the data management device 100. The display device 1022 is a cathode ray tube display device (CRT) or a liquid crystal display device. (LCD) and other display devices.

  Here, the input means accepts input by the user, and may be configured by a keyboard, a mouse 1100, and the like.

  The communication I / F 1040 is a network adapter for enabling the data management apparatus 100 to be connected to a terminal via a dedicated network or a public network. The communication I / F 1040 may include a modem, a cable modem, and an Ethernet (registered trademark) adapter.

  In the above example, the data management apparatus 100 has been mainly described. However, the functions described above can also be realized by installing a program in a computer and operating the computer as the data management apparatus 100. Therefore, the functions realized by the data management apparatus 100 described as an embodiment in the present invention are performed by executing the above-described method by the computer, or by introducing the above-described program into the computer and executing it. Is also feasible.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and modifications, improvements, and the like within the scope that can achieve the object of the present invention are included in the present invention. .

  For example, the operation data illustrated in FIGS. 4 to 6 is not limited to the four operation data illustrated, and may include arbitrary operation data among the operation data listed in FIGS. 7 to 13.

  In addition, the table showing the magnitude of the rate of increase / decrease shown in FIG. 6 is a table as of January 30, 2005, but is not limited to this, and a table of the rate of increase / decrease at other times is displayed. Alternatively, it may be possible to select at which point the ratio increase / decrease rate table is displayed. Moreover, you may display the ratio increase / decrease rate in several time points as a table | surface.

It is a figure showing the whole data management system composition of one embodiment of the present invention. It is a block diagram which shows the structure of the data management system by embodiment of this invention. It is a flowchart which shows the process which the data management apparatus by embodiment of this invention performs. It is a figure which shows the fluctuation value of the value (ratio and actual value) of the driving | running | working data by embodiment of this invention. It is a figure which shows the data table of the daily ratio of the driving | running data by embodiment of this invention. It is the figure which showed the graph and table | surface of the ratio increase / decrease rate by embodiment of this invention. It is the figure which enumerated the operation data by embodiment of this invention. It is the figure which enumerated the operation data by embodiment of this invention. It is the figure which enumerated the operation data by embodiment of this invention. It is the figure which enumerated the operation data by embodiment of this invention. It is the figure which enumerated the operation data by embodiment of this invention. It is the figure which enumerated the operation data by embodiment of this invention. It is the figure which enumerated the operation data by embodiment of this invention. It is a figure which shows an example of the hardware constitutions of the data management apparatus by embodiment of this invention.

Explanation of symbols

1 Data Management System 10 Power Plant Unit 81 A-SH Gas Damper Opening Line Graph 82 B-SH Gas Damper Opening Line Graph 83 Fuel Water Ratio Command Line Graph 84 ECO Outlet Gas 02 (A) Average Line Graph 100 Data Management device 101 Control unit 102 Output unit 104 Communication unit 107 Storage unit 110 Input unit 112 Reference setting unit 114 Ratio calculation unit 125 Operation data collection unit 200 Boiler master control system 210 Fuel ratio control system 220 Turbine master control system 230 Water supply control system

Claims (2)

A plurality of operation data groups that are measured each time a predetermined time elapses, and each operation data group of the plurality of operation data groups indicates an operation state of a plurality of different operation facilities provided in the power plant unit. A data management system for a power plant unit that manages a plurality of operation data groups, which is an operation data group corresponding to a plurality of types of operation data managed in units corresponding to each operation state. ,
Operation data collection means for collecting the plurality of operation data groups from the plurality of different operation facilities at a predetermined time interval;
From the operation data group collected by the operation data collection means, a reference setting means for setting a plurality of types of operation data as a plurality of types of reference operation data respectively according to the operation data group at a predetermined time in a normal operation state;
From among the plurality of operation data groups, an operation data group at a predetermined time point in an arbitrary operation state is extracted, each of a plurality of types of operation data corresponding to the extracted operation data group, and the plurality of types of reference operation data A ratio calculating means for calculating a ratio of each of the plurality of operating facilities according to each of the plurality of operating facilities;
The calculated graph representing the ratio according to each of the plurality of operating facilities at a plurality of times and the ratio according to each of the plurality of operating facilities at an arbitrary time are arranged in descending order of absolute values. A data management system for a power plant unit, comprising: display means for displaying a table on one screen . A plurality of operation data groups that are measured each time a predetermined time elapses, and each operation data group of the plurality of operation data groups indicates an operation state of a plurality of different operation facilities provided in the power plant unit. A data management method for a power plant unit that manages a plurality of operation data groups, which is an operation data group corresponding to a plurality of types of operation data managed in different units.
The computer runs,
An operation data collection step for collecting the plurality of operation data groups from the plurality of different operation facilities at a predetermined time interval;
From the operation data group collected in the operation data collection step, a reference setting step for setting a plurality of types of operation data according to the operation data group at a predetermined time in a normal operation state as a plurality of types of reference operation data,
From among the plurality of operation data groups, an operation data group at a predetermined time point in an arbitrary operation state is extracted, each of a plurality of types of operation data corresponding to the extracted operation data group, and the plurality of types of reference operation data A ratio calculating step for calculating a ratio of each of the plurality of operating facilities according to each of the plurality of operating facilities;
The calculated graph representing the ratio according to each of the plurality of operating facilities at a plurality of times and the ratio according to each of the plurality of operating facilities at an arbitrary time are arranged in descending order of absolute values. A data management method for a power plant unit, comprising: a display step for displaying a table on one screen .

Images