JP3392543B2 - Plant monitoring equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plant monitoring device for monitoring a power plant composed of a plurality of power generating units.

[0002]

2. Description of the Related Art In a power plant composed of a plurality of power generating units, the plant monitoring monitors each power generating unit and the entire power generating plant. Therefore, it has a power generation plant computer that integrally monitors the entire power generation plant and a power generation unit computer that individually monitors each power generation unit. The monitoring of the plant in such a power generation plant, each power generation unit computer monitors each power generation unit based on the process signal captured from each power generation unit,
The monitoring result of each power generation unit is sent to the power plant computer, and the power plant computer displays the plant monitoring information on the CRT display device. That is,
Abnormal parts and abnormal states of the plant are displayed in a character information format that can be identified by the operator.

Further, as a method of displaying on the CRT display device, the monitoring information of the entire power plant or the individual monitoring information of each power generation unit is switched and displayed on one CRT display device. There is.

FIG. 20 shows the construction of a plant monitoring device for such a power plant. Each of the power generation unit computers 11A to 11K has a corresponding process input device 31A to 3K.
Process signals are input from the respective power generating units 41A to 41K via 1K, and
A to 41K are being monitored. The power plant computer 1
Monitoring information of each power generation unit 41A to 41K is input from each power generation unit calculator 11A to 11K, monitoring information of the entire power generation plant is created, and power generation plant monitoring data is displayed on the CRT display device 3. Where C
The RT input device 4 is a dialogue device for dialogue between the power plant computer and the operator.

[0005]

However, in such a conventional plant monitoring device, when an abnormality occurs in the power plant computer 1, it is possible to output the information of each power generating unit 41 to the CRT display device 3. If not, the operator cannot monitor the plant. Further, when an abnormality occurs in the power generation unit computer, the plant monitoring information of the power generation unit 41 cannot be displayed on the CRT display device 3, so that the plant monitoring of the power generation unit cannot be performed.

On the other hand, in such a conventional plant monitoring device, although monitoring information can be output to the CRT display device 3 of the entire power generation plant and displayed individually for each power generation unit, it is possible to individually display each power generation unit. The monitoring information cannot be output to the CRT display device 3 at one time. If the individual monitoring information for each power generation unit is displayed at one time, the CRT display devices 3 having the number of each power generation unit or more are required.

An object of the present invention is to provide an operator with individual monitoring information for each power generation unit even when an abnormality occurs in either the power plant computer or the power generation unit computer,
In addition to improving the plant monitorability, it is to provide an operator who can monitor the operating state of the entire power plant and monitor information collected for each power generation unit as a whole of the power plant, and to provide a plant monitoring device that is easier to monitor. .

[0008]

According to a first aspect of the present invention, a process signal for each power generation unit of a power plant comprising a plurality of power generation units is read into each power generation unit computer via a process input device, A plant monitoring device for monitoring each power generation unit and monitoring the entire power plant by inputting monitoring information from each power generation unit computer to the power generation plant computer, wherein the process signal from the process input device is Plant information transmission means for inputting to the power plant computer without passing through the power generation unit computer, and monitoring information of the entire power plant obtained by the power plant computer based on the process signal input via the plant information transmission means and A plurality of display devices that display monitoring information from each power generation unit computer, And a fault information transmission means for transmitting an abnormality of the plant computer each of the power generation unit computer.

[0009]

[0010]

[0011]

According to a second aspect of the present invention, when the power generation unit computer detects an abnormality of the power generation plant computer via the failure information transmission means of the first aspect, each power generation unit computer has a plurality of display devices in advance. A predetermined display device is selected and its own monitoring information is displayed.

According to a third aspect of the present invention, when the power generation unit computer detects an abnormality of the power generation plant computer via the failure information transmission means of the first aspect, each power generation unit computer has a plurality of display devices in advance. A predetermined display device is selected and its own monitoring information is displayed in a predetermined display area of the display device.

[0014]

In the plant monitoring apparatus according to the first aspect of the present invention, since the power generation unit computer detects that the power generation plant computer has become abnormal through the failure information transmitting means, the power generation plant computer can handle the abnormality. It will be easy.

[0015]

[0016]

[0017]

In the plant monitoring apparatus according to the second aspect, even when an abnormality occurs in the power plant computer,
The power generation unit computer that monitors each power generation unit distributes the monitoring information to a plurality of display devices and outputs the monitoring information to improve the monitoring of the entire power generation plant.

In the plant monitoring apparatus according to the sixth aspect, even when an abnormality occurs in the power plant computer,
Multiple power generation unit computers that monitor each power generation unit output monitoring information to one or a small number of display devices, centralize monitoring information, and monitor operators' power plants. It is intended to improve and reduce the burden on the operator.

[0020]

EXAMPLES Examples of the present invention will be described below. FIG. 1 is a configuration diagram of a plant monitoring apparatus 10 of the present invention. The same parts as those of the conventional plant monitoring apparatus shown in FIG. 20 are designated by the same reference numerals.

The plant monitoring device 10 includes a power plant computer 1, respective power generation unit computers 11A to 11K, a plurality of CRT display devices 3a to 3n, and a CRT input device 4a.
4n, each process input device 31A to 31K, plant information transmission means 21A to 21K, failure information transmission means S
Composed of.

That is, a plurality of power generation units 41A ...
A process signal for each power generation unit of a power generation plant consisting of 41K is read into each power generation unit computer 11A to 11K via the process input devices 31A to 31K, and each power generation unit computer 11A to 11K reads each power generation unit 41A to 41K. Monitor each time. Moreover, the monitoring information from each of the power generation unit computers 11A to 11K is input to the power generation plant computer 1 to monitor the entire power generation plant.

In the present invention, the process input device 31
The power generation plant computer 1 directly receives the process signals from A to 31K through the plant information transmitting means 21A to 21K, respectively.
To enter. Based on the process signal input via each of the plant information transmitting means 21A to 21K, the monitoring information of the entire power plant obtained by the power plant computer 1 is displayed on the plurality of CRT display devices 3a to 3C.
It is displayed on any one of n, and the remaining CRT display device displays the monitoring information from each power generation unit computer and other necessary information. Then, when an abnormality occurs in the power generation plant computer 1, it is transmitted to each of the power generation unit computers 11A to 11K via the failure information transmission means S.

FIG. 2 is a block diagram of the power plant computer 1 of the present invention. The monitoring screen display means 12 displays and outputs the monitoring screen on any one of the plurality of CRT display devices 3a to 3n which are predetermined. Now, C managed by the power plant computer 1
The RT display device is assumed to be the CRT display device 3a. The operator requests the CRT display device 3a to display the monitoring screen from the CRT input device 4a, which is an interactive device. Then,
The monitoring screen display means 12 displays on the CRT display device 3a a monitoring screen concerning monitoring information for monitoring the power plant.

A plant batch display button and a unit individual display button are displayed in the dialogue area of this monitoring screen. The plant collective display button is selected when requesting display of the collective monitoring screen, and the unit individual display button is selected when requesting display of the individual monitoring screen.

When the plant batch display button is selected by the operator, the batch monitoring screen display means 13 is activated. The collective monitoring screen display means 13 displays the collective monitoring screen in which the monitoring information of the process signals to be monitored among the process signals input via the plant information transmitting means 21A to 21K is arranged in chronological order in the CRT. It is displayed on the display device 3a.

On the other hand, when the unit individual display button is selected by the operator, the individual monitoring screen display means 14 is activated, and the individual monitoring screen display means 14 receives the process signal input via the plant information transmitting means 21A to 21K. Among them, the individual monitoring screen in which the monitoring information of the process signal to be monitored is arranged in chronological order for each of the power generation units 11A to 11K is displayed on the CRT display device 3a.

Next, a unit individual uniform display button and a unit individual variable display button are displayed in the dialogue area of the individual monitoring screen.

When the unit individual equalization display button is selected by the operator, the individual equality display means 15 is activated, and the individual equality display means 15 activates the process signal prepared for each of the power generation units 11A to 11K. The display areas of the monitoring information are evenly arranged, and the monitoring information of each of the power generation units 11A to 11K is displayed on the CRT display device 3a.

On the other hand, when the operator selects the unit individual variable display button, the individual variable display means 16 is activated, and the individual variable display means 16 determines the operation mode of each of the power generation units 11A to 11K. The display area of the power generation unit in the normal operation mode is arranged smaller than the display area of the power generation unit not in the normal operation mode, and the monitoring information of each of the power generation units 11A to 11K is displayed on the CRT display device 3a.

The first embodiment of the present invention will be described in detail below. FIG. 3 shows a monitor screen displayed by the monitor screen display means 12, and the display area of the CRT display device 3a is composed of a data display area 5 in which monitor information is displayed and a dialogue area 6. A plant collective display button P1 and a unit individual display button P2 are displayed in the dialogue area 6 of this monitoring screen. The plant collective display button P1 is selected when requesting display of the collective monitoring screen, and the unit individual display button P2 is selected when requesting display of the individual monitoring screen. The plant batch display button P1 and the unit individual display button P2 are selected by the CRT input device 4 which is an interactive device.

FIG. 4 is a collective monitoring screen displayed by the collective monitoring screen display means 13 when the operator selects the plant collective display P1 on the monitoring screen of FIG. 3 with the CRT input device 4a. Of the process signals input from the power generation units 41A to 41K, the process signals to be monitored are displayed in M11 to Mmn in FIG. That is, the individual power generation units 41A to 41K are not distinguished from each other and are displayed in chronological order in the order of occurrence as the monitoring information of all the power generation units in the power generation plant. Here, what corresponds to m of Mmn is the unit number of the plurality of power generation units 41, and n indicates the monitoring information number in the power generation unit 41, that is, the input point of the process signal. Such a collective monitoring screen is effective when collectively monitoring the entire power generation plant.

Next, FIG. 5 is an individual monitoring screen displayed by the individual monitoring screen display means 14 when the operator selects the unit individual display P2 on the monitoring screen of FIG. 3 with the CRT input device 4a. In each of W1 to W3 in FIG. 5, the power generation unit monitoring information related to one power generation unit 41 among the plurality of power generation units 41A to 41K is displayed.

Now, the power generation unit monitoring information related to the power generation unit 41A is displayed in W1, the power generation unit monitoring information related to the power generation unit 41B is displayed in W2, and the power generation unit related to the power generation unit 41C is displayed in W3. Monitoring information shall be displayed. As for the display in W1, the process signals in the monitoring state of the corresponding power generation unit 41A are sequentially displayed from M11. Similarly, in the display in W2, the process signals in the monitoring state of the corresponding power generation unit 41B are sequentially displayed from M21, and in the display in W3, the process signals in the monitoring state of the corresponding power generation unit 41C are sequentially displayed from M31. It The display positions of these W1 to W3 in the data display area 5 are determined by a predetermined CRT.
The output is performed at the display position of the display device 3. Such an individual monitoring screen is effective for monitoring the power generation units as a whole.

FIG. 6 shows an example of a table of process signal monitoring information in the power plant computer 1. The monitoring information of the process signal from the power generation unit 41 is read into the power generation plant computer 1 via the process input device 31 and the plant information transmission device 21. In the power generation plant computer 1, as shown in FIG. 6, the power generation plant whole monitoring information table 17 in which the power generation unit number is added to the read process signal monitoring information, and the power generation unit individual monitoring information table classified for each power generation unit 41 18 is created.

FIG. 7 shows a CR in the power plant computer 1.
The process of displaying on the T display device 3 is shown. First, the monitoring screen display means 12 displays a monitoring screen (S1).
The operator's selection request from the CRT input device 4 is fetched, and it is determined whether the operator's selection is plant collective display or unit individual display (S2). When the operator selects the plant batch display P1, the batch monitoring screen display means 13 edits the monitoring information of the entire power generation plant (S3) and outputs it to the CRT display device 3 for display (S4).
As a result, the batch monitoring screen shown in FIG. 4 is displayed on the CRT display device 3.

On the other hand, when the operator selects the unit individual display P2, the individual monitoring screen display means 14 edits the individual monitoring information for each power generating unit (S5), and within the display area of each power generating unit 41. The display position is determined (S6), and display data output for each power generation unit is output to the CRT display device 3 (S7). This gives C
The individual monitor screen shown in FIG. 5 is displayed on the RT display device 3.

As described above, according to this embodiment,
Since the power generation plant computer 1 collectively displays the monitoring information for each power generation unit 41 on the CRT display device 3 for each power generation unit 41, the monitoring information collected for each power generation unit 41 can be monitored as the entire power generation plant. it can. Further, since it is possible to display the monitoring information collectively on the CRT display device 3 without distinguishing the power generation units 41, it is convenient when it is necessary to monitor the entire power generation plant, and to the operator. And effective monitoring function of the entire power plant can be provided.

Further, a plant information transmission means 21 is provided,
Since the plant monitoring of the power generation unit 41 can be performed not only by the power generation unit computer 11 but also by the power generation plant computer 1, even when an abnormality occurs in the power generation unit computer 11 that monitors the power generation unit 41, Power plant can be monitored.

Next, a second embodiment of the present invention will be described.
In the first embodiment, when the unit individual display button P2 in the conversation area 6 in FIG. 3 is selected by the operator's selection operation, the individual monitoring screen display means 14 displays the individual monitoring screen in FIG. However, in the second embodiment, as shown in FIG. 8, a dialogue area 61 is provided on the individual monitoring screen to display the unit individual uniform display button P3 and the unit individual variable display button P4.

The operator can select any of the buttons, and the operator uses the CRT input device 4 to make a selection. When the unit individual uniform display button P3 is selected, the individual uniform display unit 15 displays the individual uniform display screen shown in FIG. 9, and when the unit individual variable display button P4 is selected, the individual variable display unit 16 displays the figure. The unit individual variable display screen shown in 10 is displayed on the CRT display device 3.

FIG. 9 shows the unit individual uniform display button P3.
It is an individual equalization display screen displayed by the individual equalization display means 15 when the operator selects. In each of W1 to W4 in the data display area 5, power generation unit monitoring information related to one power generation unit 41 among the plurality of power generation units 41A to 41K is displayed. Now, the power generation unit monitoring information related to the power generation unit 41A is displayed on W1, the power generation unit monitoring information related to the power generation unit 41B is displayed on W2, and the power generation unit monitoring information related to the power generation unit 41C is displayed on W3. Is displayed, W
4, it is assumed that power generation unit monitoring information related to the power generation unit 41D is displayed.

The sizes of these W1 to W4 are predetermined and are always displayed in the same area size. This is a size allocated at the time of system design, depending on the number of power generation units and the number of installed CRT display devices, and the display position is also predetermined. FIG. 9 shows a case where four power generation units are present in the power generation plant, in which the display area of the CRT display device 3 is divided into two parts on the left and right sides, and further, the left and right parts are each divided into two parts on the upper and lower sides.

On the other hand, FIG. 10 shows an individual variable screen displayed by the individual variable display means 16 when the operator selects the unit individual variable display button P4. The size differs depending on the power generation unit 41. W2 and W3
Is displayed smaller than W1 and W4.

That is, when the operator selects the unit individual variable display button P2 displayed in the dialogue area of the individual monitoring screen, the individual variable display means 16 determines the operation mode of each of the power generation units 41A to 41K. . The determination of the operation mode of each of the power generation units 41A to 41K is performed based on the input process signal. And
The display area of the power generation unit whose operation mode is the normal operation mode is arranged smaller than the display area of the power generation unit not in the normal operation mode and is displayed on the CRT display device 3a. That is, for a power generation unit in an operation mode that is not the normal operation mode, such as when starting or stopping the plant, the display area is expanded like the areas W1 and W4 in FIG. 10 to generate the power in the normal operation mode. For the unit, the display area is reduced and displayed on the CRT display device 3 as indicated by W2 and W3 in FIG.

This is because the number of process signals to be monitored is large in the operation mode at the time of starting or stopping the plant, and the number of process signals to be monitored is relatively small in the normal operation mode. Therefore, the ratio of the display area of the power generation unit during the start-up operation or stop operation of the plant and the power generation unit in the normal operation mode, the size of the ratio of the number of process signals to be monitored is a predetermined size, FIG. 10 shows a case where the display area is distributed at 7: 3.

As an operation mode other than the normal operation mode, there is a case where the power generation unit 41 is under regular inspection in addition to the mode at the time of starting or stopping the plant. While the power generation unit 41 is under regular inspection, no monitoring message is needed, so the display area can be eliminated.

FIG. 11 shows the processing contents of the power plant computer 1 in this case. First, the individual monitoring screen display means 1
The individual monitoring screen is displayed at 4 (S8). As shown in FIG. 8, in the dialog area 61 of the individual monitoring screen, the unit individual uniform display button P3 and the unit individual variable display button P are displayed.
4 and are displayed. Therefore, the individual monitoring screen display means 14 determines whether the selection request from the CRT input device 4a by the operator is the unit individual uniform display or the unit individual variable display (S9). When the operator's selection request is unit individual equalization display, the individual equalization display means 15 displays the monitoring information of each power generation unit 41A to 41K input to the power generation plant computer 1 to each power generation unit 41A to. Editing is performed for each 41K (S10). Then, the display position of the monitoring information of each of the power generation units 41A to 41K is determined by the size of the display area evenly allocated by the number of power generation units determined in advance (S11), and the power generation units are individually monitored. The information is displayed and output on the CRT display device 3a (S12). As a result, the individual uniform monitoring screen shown in FIG. 9 is displayed on the CRT display device 3a.

On the other hand, when the operator's selection request is the individual power generation unit variable display, the individual variable display means 16 determines the operation mode of each of the power generation units 41A to 41K (S13). If the operation modes of the power generation units 41A to 41K are all the same in this determination, the process proceeds to the process (S10) when the operator selects the individual power generation unit equal display. Each power generation unit 41A-4
When the operation modes of 1K are not the same but different, the power generation unit 4 during the starting operation and the stopping operation of the plant
1 and the power generation unit 41 in the normal operation mode are selected (S14). Here, in FIG. 11, the power generation unit during the starting operation and the stopping operation of the plant is referred to as an event unit.

Depending on the number of the power generating units 41 in the starting operation and the stopping operation of the plant determined by this selection, the size and the display position of the display area of the monitoring information allocated by the predetermined number of power generating units are determined. The display information table as shown in FIG. 12 is used for determination (S15) and processing (S15).
Go to 12). As a result, the monitoring information collected for each power generation unit is displayed and output on the CRT display device 3a, and CR is displayed.
The individual variable monitoring screen shown in FIG. 10 is displayed on the T display device 3a.

According to the second embodiment, the allocation of the display area for each power generation unit 41 can be made variable depending on the operation mode of each power generation unit 41A to 41K, so that the starting operation of the power generation unit 41 and the The monitoring can be performed in response to the increase in the items of the monitoring information, such as when the stop operation is performed.

Next, a third embodiment of the present invention will be described.
In the third embodiment, when a failure occurs in the power plant computer 1, the C managed by the power plant computer 1 is used.
Each power generation unit computer 1 for the RT display device 3a
One of 1A to 11K is the power generation unit 14 of each.
The monitoring information of A to 14K can be displayed.

That is, as shown in the configuration diagram of FIG.
Power plant computer 1 and each power generation unit computer 11
The fault transmitting means S is connected between A to 11K, and the operating states of the computers are constantly monitored.
Further, the power generation plant computer 1 outputs the monitoring information of the power generation unit 41 to the CRT display device 3a and displays it on the screen of the CRT display device 3a. However, in the third embodiment, If something goes wrong,
In response to a display request from any of the power generation unit computers 11A to 11K, the monitoring information of the power generation unit 41 as shown in FIG. 13 is displayed on the CRT display device 3a.

FIG. 13 shows the display contents when any of the power generation unit computers 11A to 11K displays the monitoring information of the power generation unit 14 when the power generation plant computer 1 is abnormal. The screen shown in FIG. 13 is displayed when the failure transmission means S indicates that the power plant computer 1 is abnormal and the power generation unit computers 11A to 11K.
Is detected by any of the above.

In this case, the power generation unit computer 11 which is requested to display on the CRT display device 3a managed by the power plant computer 1 is predetermined at the time of system design. That is, the relationship between the CRT display device 3a and the power generation unit computer 11 that manages the display is determined in advance at the system design time, and when the power plant computer 1 fails, the output of the monitoring information to the CRT display device 3a is It is performed from a predetermined power generation unit computer 11.
The monitoring information is monitoring information of the power generation unit 41 monitored by the power generation unit computer 11.

Therefore, in the case of the third embodiment, the monitoring information displayed on the CRT display device 3a managed by the power generation plant computer 1 is the power generation unit 41 previously monitored by the power generation unit computer 11. Since it is the monitoring information of CRT display devices 3, the number of CRT display devices 3 is equal to or larger than the number of power generation units.

In order to inform the operator of which power generation unit computer 11 is controlling the CRT display device 3a, the power generation unit number N1 is displayed in the upper left of the screen display area to operate. It is possible to identify personnel.

Further, when the failure transmitting means S detects the recovery from the abnormality of the power plant computer 1, the power generation unit computer 11 which controls the CRT display device 3a.
Promptly stops the output of the monitoring information to the CRT display device 3a, informs the power plant computer 1 of the abandonment of the control of the CRT display device 3a by the fault transmission means S, and the output to the CRT display device 3a is generated. It returns to the state before the plant computer 1 became abnormal.

FIG. 14 shows the power generation unit computer 1 in this case.
The processing content of 1 is shown. First, the operating state of the power plant computer 1 is determined based on the signal of the failure transmission means S (S16), and when it is determined that the power plant computer 1 is abnormal, the CRT display device 3 to be controlled is determined. Is performed based on the CRT display device allocation table shown in FIG. 15 (S17). In the case shown in FIG. 15, there are four power generation unit computers 11 and six CRT display devices 3. Then, the power generation unit 11 makes an output request for the monitoring information to the CRT display device 3 determined here, and displays the screen shown in FIG.

On the other hand, when it is determined in the determination process (S16) that the power plant computer 1 is normal, it is determined whether the power plant computer 1 has recovered from the fault state (S19), and the power from the fault state is determined. In the case of returning, the control of the CRT display device 3a which is controlling is stopped (S2).
0).

As described above, the power plant computer 1
Even if an abnormality occurs in the CRT display device 3a and the monitoring display from the power generation plant computer 1 cannot be performed, the power generation unit computer 11 monitors the power generation monitored by each power generation unit computer 11. Unit 41
Since the monitoring information of can be displayed, it is possible to provide the operator with a more reliable plant monitoring function.

Further, unlike the conventional case, when the power plant computer is abnormal, the operator does not need to monitor the operation panel with the instrument, and the burden on the operator can be reduced.

Next, a fourth embodiment of the present invention will be described.
In the fourth embodiment, the number of CRT display devices 3 is less than the number of power generation units. That is, in the third embodiment, the CRT display device 3 has the power generation unit 41.
The number is equal to or greater than the number of
When the number of T display devices 3 is less than the number of power generation units,
Monitoring information of a plurality of power generation units 41 is displayed as follows.

FIG. 16 shows a CRT according to the fourth embodiment.
The display contents of the display device 3 will be described. When the power plant computer 1 is abnormal, the plurality of power generation unit computers 11 display the respective monitoring information on one CRT display device 3. W1 in the displayed screen uses a display area in which CRT display device 3 is used by the power generation unit computer 11 which monitors which power generation unit 41 when the power generation plant computer 1 is stopped in advance in the plant. This is the display area that determines

The power generation unit computer 11 outputs a monitoring information of the power generation unit 41 which is monitoring by designating a predetermined display area on the CRT display device 3. Further, the predetermined display area is made variable by inputting the operation mode of each of the power generation units 14A to 14K by the failure transmission means S, and is a display area according to the operation mode of the power generation unit 14.

FIG. 17 shows the power generation unit computer 1 in this case.
The processing content of 1 is shown. First, the operating state of the power generation plant computer 1 is determined based on the signal of the failure transmission means S (S21), and when it is determined that the power generation plant computer 1 is abnormal, the operation modes of the power generation units 14A to 14K Check (S22). Power generation unit 14A ~
When the operation modes of 14K are the same, the control position on the CRT display device 3 is determined by the first C shown in FIG.
This is performed based on the allocation of the RT display devices 3 and the display position table (S23). FIG. 18 shows a case where the number of power generation units 14 is four and the number of CRT display devices 3 is three. In this example, the power generation unit calculator 11C and the power generation unit calculator 11D share one CRT display device 3.

On the other hand, when there is a difference in the operation mode of the power generation units 14A to 14K, the control position on the CRT display device 3 is determined by allocating and displaying positions of the second CRT display device 3 shown in FIG. Perform based on the table (S
24). In this example, a case is shown in which the operation mode of the power generation unit 14C is during the starting operation or the stopping operation.

Then, the CRT display device 3 for which the control is decided
The power generation unit monitoring information is displayed at the position determined by (S25).

If it is determined in the determination process (S21) that the power plant computer 1 is normal, it is determined whether the power plant computer 1 has recovered from the fault state (S26), and the power from the fault state is determined. In the case of returning, the control of the CRT display device that is controlling is stopped (S27).

As described above, the fourth embodiment is effective when the number of CRT display devices 3 is small for a plurality of power generation units 41, and even if an abnormality occurs in the power plant computer 1, it is small. It is possible to display the monitoring information of the entire power plant on the CRT display device 3 and provide the operator with an effective plant monitoring function.

[0071]

As described above, according to the present invention, it is possible to improve the monitoring function and reliability of each power generation unit of a power generation plant including a plurality of power generation units and the power generation plant as a whole. It is possible to provide an effective plant monitoring function for.

That is, according to the first aspect of the present invention, the failure information transmission means is provided to transmit the abnormality of the power plant computer to the power generation unit computer. Therefore, even if an abnormality occurs in the power plant computer, the monitoring display of the power plant is displayed. It can be carried out.

[0073]

[0074]

[0075]

According to the invention of claim 5, since the monitoring information of the power generation units monitored by each power generation unit computer can be displayed on each power generation unit computer, it is possible to display more information to the operator. It can provide a highly reliable plant monitoring function.

Further, according to the invention of claim 6, even when the number of display devices is small for a plurality of power generation units and even when an abnormality occurs in the power generation plant computer, the entire power generation plant. The monitoring information of can be displayed.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of a plant monitoring apparatus of the present invention.

FIG. 2 is a block configuration diagram of a power plant computer according to the present invention.

FIG. 3 is an explanatory diagram of a monitor screen according to the present invention.

FIG. 4 is an explanatory diagram of a collective monitoring screen according to the present invention.

FIG. 5 is an explanatory diagram of an individual monitoring screen according to the present invention.

FIG. 6 is an explanatory diagram of a process signal monitoring information table in the power plant computer of the present invention.

FIG. 7 is a flowchart showing the processing contents of the first embodiment of the present invention.

FIG. 8 is an explanatory diagram of an individual monitoring screen according to the second embodiment of this invention.

FIG. 9 is an explanatory diagram of an individual uniform display screen according to the present invention.

FIG. 10 is an explanatory diagram of an individual variable display screen according to the present invention.

FIG. 11 is a flowchart showing the processing contents of the second embodiment of the present invention.

FIG. 12 is an explanatory diagram of a display information table according to the present invention.

FIG. 13 is an explanatory diagram of a monitor screen according to the third embodiment of the present invention.

FIG. 14 is a flowchart showing the processing contents of the third embodiment of the present invention.

FIG. 15 is a CRT display device allocation table of the present invention.

FIG. 16 is an individual monitoring screen according to the third embodiment of the present invention.

FIG. 17 is a flowchart showing the processing contents of the fourth embodiment of the present invention.

FIG. 18 is an allocation and display position table of the first CRT display device according to the present invention.

FIG. 19 is an allocation and display position table of the second CRT display device according to the present invention.

FIG. 20 is a configuration diagram of a conventional plant monitoring device.

[Explanation of symbols]

1 Power plant computer 3 CRT display device 4 CRT input device 5 Data display area 6 Dialogue area S Failure information transmission means 10 Plant monitoring device 11 Power generation unit calculator 12 Monitoring screen display means 13 Collective monitoring screen display means 14 Individual monitoring screen display means 15 Individual equality display means 16 Individual variable display means 17 Power plant whole monitoring information table 18 Power generation unit individual monitoring information table 21 Plant information transmission means 31 Process input device 41 power generation unit

─────────────────────────────────────────────────── --- Continuation of front page (56) References JP-A 1-282603 (JP, A) JP-A 62-70903 (JP, A) JP-A 4-70511 (JP, A) JP-A 6- 20174 (JP, A) JP 62-174809 (JP, A) JP 6-124182 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) G05B 23/00-23 / 02 G05B 15/00-15/02

Claims (3)

(57) [Claims] 1. A process signal for each power generation unit of a power generation plant comprising a plurality of power generation units is read into each power generation unit computer via a process input device to monitor each power generation unit, and at the same time, each of the power generation units is monitored. In the plant monitoring device for inputting monitoring information from the power generation unit computer to the power generation plant computer to monitor the entire power generation plant, the process signal from the process input device is passed through the power generation unit computer and Plant information transmission means for inputting to the power plant computer, and monitoring information of the entire power plant obtained by the power plant computer based on the process signal input via the plant information transmission means and each of the power generation Multiple display devices that display monitoring information from the unit computer And a failure information transmitting means for transmitting an abnormality of the power generation plant computer to each of the power generation unit computers. 2. When the power generation unit computer detects an abnormality in the power generation plant computer via the failure information transmission means, each of the power generation unit computers displays a predetermined display among the plurality of display devices. Select the device,
The plant monitoring device according to claim 1, wherein the self-monitoring information is displayed. 3. When the power generation unit computer detects an abnormality of the power generation plant computer via the failure information transmission means, each of the power generation unit computers displays a predetermined display among the plurality of display devices. Select the device,
The plant monitoring device according to claim 1, wherein the monitoring information of the device itself is displayed in a predetermined display area of the display device.