JPH10254529A - Plant supervisory and controlling device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently operate a plant by making difference between the operation schedule of the plant and an actual operation result small. SOLUTION: A time measurement means S7 measures the operation time of respective operation items, sets it to a time measurement information file T4, calculates average time with average operation time until a previous time for all the operation items for which the time is measured by updating request informing and sets it to the time measurement information file T4 as the new average operation time. In a schedule calculation means S2, a present plant state is judged by process data, the average operation time of the respective operation items until the plant operation of the previous time set inside the time measurement information file T4 is calculated and the operation schedule of the plant whose base point is the informed operation completion request time is calculated and set to a schedule data setting file T2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plant monitoring and control device which calculates a plant operation plan and performs control and monitoring for automatic operation of the plant based on the calculation result.

[0002]

2. Description of the Related Art Plants such as small-scale or medium-scale thermal power plants often start and stop daily to cope with daily loads. A plant operation plan is prepared in advance by a plan calculation function (schedule calculation function) and the like, and the plant is automatically operated based on the plan.

FIG. 19 is a block diagram of a plant monitoring and control device showing an example applied to a conventional power plant.

In FIG. 19, a plant monitoring and control device P
2 is a process input means S1 and a schedule calculation means S
2, an operation collecting means S3, an automated driving means S4, a process display means S5, and a dialog input means S6.
It has a process data setting file T1, a schedule data setting file T2, and an operation result data setting file T3, and connects the CRT display device C1, the touch screen device C2, and the key input device C3.

First, the process input means S1 periodically inputs various process data from the power plant P1 and sets the process data in the process data setting file T1.

The operator makes a calculation request (schedule calculation request) for the operation plan from the dialog screen of the CRT display device C1, and the dialog input means S6 notifies the schedule calculation means S2 of the calculation request together with the operation completion request time.

The schedule calculation means S2 determines the current plant state from the process data in the process data setting file T1, calculates the operation plan of the power plant P2 based on the notified operation completion request time, and sets the schedule data. Set in file T2.

The process display means S5 displays operation plan data such as each scheduled operation time of the schedule data setting file T2 on the CRT display device C1.

The automated operation means S4 outputs a control signal to the plant based on the process data in the process data setting file T1 and the control parameters in the schedule data setting file T2 to perform the automatic operation of the power plant P1.

The performance collecting means S3 periodically detects the performance time of each operation plan and collects data such as turbine speed and generator output from the process data in the process data setting file T1 as the plant operation proceeds. To the operation result data setting file T3.

As shown in FIG. 20, the process display means S5 displays the operation result time and the curve display data such as the turbine speed / generator output of the operation result data setting file T3 as shown in FIG. The display is updated periodically on the display screen. Operation result display screen 5 shown in FIG.
0, there is a result display graph screen 50a for displaying the result graph in the upper part, and there is an item display part 50b for displaying the plan and result for each item in numerical values or the like in the lower part.

In such a power plant, it is desired to improve the operation efficiency by reducing the difference between the operation plan and the actual operation results.

[0013]

However, the conventional plant monitoring and control device has the following problems.

In the calculation of the operation plan (schedule calculation) in the conventional plant monitoring and control device, since the personal time difference in the operation of the operator and the change in the plant characteristics in the long-term operation of the plant are not taken into account, the operation plan is calculated. Driving was extremely difficult.

In addition, it is extremely difficult to operate the plant according to the operation plan, because differences in plant characteristics due to temperature differences such as seasons are not taken into consideration so that the plant operating hours are different between summer and winter. .

In the automatic operation of the plant, the operator monitors the operation by displaying an automatic operation message or a process display on the CRT display C1 or the like. Need operation. In this case, the operator constantly monitors the automated operation of the plant, and must perform necessary operation operations at each time, so that the operation monitoring and operation operation cannot be performed with sufficient margin.

In the operation plan of the conventional plant monitoring and control apparatus, as shown in FIG. 20, in the start-up operation, there are roughly five scheduled times of start-up operation start / ignition / ventilation / joining / start-up operation completion. It only provides the actual time information. Therefore, it has been difficult to analyze which operation item caused the operation to fail according to the operation plan when the operation was completed. Therefore, the analysis results cannot be utilized for the next plant operation, and it has been difficult to operate according to the operation plan.

The turbine control parameters, such as the turbine overspeed, take into account the expected life of the turbine at the time of plant construction and the expected number of times of starting / stopping of the turbine. Is calculated using the control parameter values during operation planning.

In recent years, in addition to the need to start the plant in the shortest time as in the past, there is also a case where it is desired to operate the plant such that the life of the turbine is extended beyond the expected life at the time of construction of the plant with the reduction in capital investment. Not a few,
In the operation plan of the conventional plant monitoring and control device, an automatic plant operation in consideration of extending the life of the turbine cannot be performed.

A first object of the present invention is to efficiently operate a plant by reducing a difference between an operation plan of a plant and an actual operation result.
A third object of the present invention is to provide a plant monitoring and control device that enables an operator to operate and monitor a plant having a margin and, as a third object, to perform a plant operation plan and an automated operation in consideration of extending the life of equipment. With the goal.

[0021]

The invention according to claim 1 performs monitoring and control for automatically operating a plant in accordance with an operation plan obtained by inputting various information from a plant and calculating a plant operation plan. A time monitoring means for measuring an operation time for each operation item, calculating an average operation time for each operation item based on the measured operation time, and storing the average operation time in a time measurement information file; A schedule calculating means for calculating a plant operation plan based on the average operation time of each operation item stored in the measurement information file is provided. According to this means, the average operation time of each operation item is calculated based on each operation time measured for each operation item, and a new operation plan is calculated based on the average operation time.
As a result, the obtained operation plan is in accordance with the condition of the plant, and the actual operation of the plant can be performed according to the operation plan. Therefore, the inconvenience that the actual operation is performed by the operation plan that does not conform to the actual situation due to the individual differences of the operators and the characteristics of the plant as in the related art and the operation is not completed according to the operation plan can be solved.

According to a second aspect of the present invention, there is provided a process input means for inputting various process data from a plant for each cycle and setting the process data in a process data setting file, and a process data input file for setting the process data in the process data setting file as the plant operation proceeds. A result collection unit that detects the actual time of each operation item and collects the necessary device data and sets it in the operation result data setting file, and inputs the current process data from the process data setting file and stores it in the time measurement information file Judgment is made based on the measurement start / end conditions of each operation item, and the operation time of each operation item from the satisfaction of the measurement start condition to the satisfaction of the measurement end condition is measured, and the current operation time measured for each operation item And the measurement start time and measurement end time in the time measurement information file, and Time measurement means for calculating the average operation time by adding the current result to the previous average operation time and saving it as a new average operation time in the time measurement information file; and Judgment of the plant status of the plant, referring to the average operation time of each operation item until the last plant operation set in the time measurement information file, create plant operation plan data, and set it in the schedule data setting file Schedule calculation means, and an automatic operation means for outputting a control signal to the plant and performing an automatic operation of the plant by the process data of the process data setting file and the control parameters stored in the schedule data setting file. It was done. According to this means, a new average operation time is calculated for each operation item in consideration of the current operation results in addition to the average operation time up to the last time. When the operation completion request time is specified, the operation plan is calculated so that the operation is completed at the operation completion request time using the new average operation time of each operation item. As a result, the actual operation is performed according to an accurate operation plan according to the actual situation, so that there is no inconvenience that the operation completion time is extended or earlier than expected.

According to a third aspect of the present invention, in the plant monitoring and control apparatus according to the first or second aspect, data of a plurality of operation patterns representing the operation schedule created by the schedule calculating means or as operation result data is stored. The data from the time measurement information file extracted by the request in the saved operation pattern information file is added to a new one.
There is provided an operation pattern registration means for setting as one operation pattern, and the operation plan is calculated based on the operation patterns accumulated according to the situation. According to this means, the operation plan is calculated based on an appropriate operation pattern selected from a plurality of operation patterns according to the situation. Thus, there is no difference between the actual operation and the operation plan, and efficient operation can be performed.

According to a fourth aspect of the present invention, in the plant monitoring and control apparatus according to the first or second aspect, scheduled guidance information for storing necessary guidance information including a scheduled operation time and guidance display conditions for each operation item. The average time of each operation item is taken from the file and the time measurement information file, the respective scheduled operation times are calculated and saved in the scheduled guidance information file, and it is determined whether a predetermined guidance display condition is satisfied. And a scheduled guidance display means for displaying and outputting scheduled guidance information to the outside in advance. According to this means, the guidance information is externally displayed and output immediately before the scheduled operation time of each operation item. As a result, the operator can know the next operation item in advance and work with a margin, and the operation burden on the operator is greatly reduced.

According to a fifth aspect of the present invention, there is provided the plant monitoring and control apparatus according to the first or second aspect, wherein the scheduled operation time of each operation item of the operation plan created with reference to the average operation time of the past performance. An operation plan print display means for displaying or printing the operation time of the current operation result is provided. According to this means, necessary various operation plans and operation results are printed and provided to the operator, so that the printed information can be stored and compared with the previous operation and the current operation, and utilized for the next operation. can do.

According to a sixth aspect of the present invention, there is provided the plant monitoring and control apparatus according to the first or second aspect, further comprising a schedule selection data setting file for setting a plurality of operation modes in accordance with the operation plan, and calculating by the schedule calculation means. The operation mode is selected from the schedule selection data setting file in accordance with the operation plan, and the operation mode is notified to the operator. According to this means, when there are a plurality of operation modes in the operation item, an appropriate operation mode is selected according to the operation plan and operation is performed. As a result, the plant can be operated in consideration of the life of the plant equipment and the like.

[0027]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of a plant monitoring and control apparatus according to a first embodiment of the present invention. The same reference numerals as those in FIG. P2A includes a process input unit S1, a schedule calculation unit S2, a result collection unit S3, an automated operation unit S4, a process display unit S5, and a dialogue input unit S
6, a new time measuring means S7 is provided, and a process data setting file T1, a schedule data setting file T2, and an operation result data setting file T3 are
A new time measurement information file T4 is provided, and CR
The T display device C1, the touch screen device C2, and the key input device C3 are connected.

Here, the process input means S1 inputs various process data from the plant P1 at regular intervals and sets them in the process data setting file T1. The dialogue input means S6 receives an operation plan calculation request from the operator on the dialogue screen via the touch screen device C2 or the key input device C3, notifies the schedule calculation means S2 of the operation completion request time, and displays the display screen. Receives an update request of the time measurement information file T4 from the operator at the end of plant operation, and notifies the time measurement means S7.

The schedule calculation means S2 determines the current plant state based on the process data in the process data setting file T1, and calculates the average operation of each operation item up to the last plant operation set in the time measurement information file T4. With reference to the time, an operation plan of the plant is calculated based on the notified operation completion request time, and is set in the schedule data setting file T2.

The automatic operation means S4 outputs a control signal to the power generation plant P1 based on the process data in the process data setting file T1 and the control parameters in the schedule data setting file T2, and performs an automatic operation of the plant.

The result collection means S3 periodically detects the actual time of each operation plan and collects data such as turbine speed and generator output from the process data in the process data setting file T1 as the plant operation proceeds. To the operation result data setting file T3.

The process display means S5 displays on the CRT display device C1 the curve display data such as each operation result time, turbine speed, and generator output stored in the operation result data setting file T3 in the form of a screen, and displays the cycle. Update.

The time measuring means S7 includes an automated driving means S4
By periodically inputting the current process data of the process data setting file T1 and determining the time measurement start / end conditions of each operation item in the time measurement information file T4 as the plant operation proceeds, The operation time of each operation item from the start condition establishment to the end condition establishment is measured, and the operation time and the start time and end time of the operation item are set in the time measurement information file T4. Further, for all the operation items whose time has been measured in response to the update request notification of the time measurement information file T4 from the dialogue input means S6, the average time with the average operation time up to the previous time is calculated, and the time measurement information file is set as a new average operation time. Set to T4.

With the above configuration, the interactive screen 5 shown in FIG.
When a request for calculation of the operation plan is made by the operator on
A request for calculation of an operation plan is received from the operator by the dialogue input means S6, and the operation completion request time is notified to the schedule calculation means S2. That is, the interactive screen 51 shown in FIG. 2 includes an operation result graph display screen 51a, an item display section 51b, an operation completion request time display screen 51c, and the like, and a calculation request 51d is executed on this screen.

The schedule calculation means S2 determines the current plant state from the process data in the process data setting file T1 based on the notification from the interactive input means S6, and determines the last plant operation set in the time measurement information file T4. With reference to the average operation time of each operation item up to, the operation plan of the plant based on the notified operation completion request time is calculated and set in the schedule data setting file T2.

The process display means S5 displays the respective scheduled operation times, which are the operation plan data of the schedule data setting file T2 set by the schedule calculation means S2, on the CRT display device C on an interactive screen 51 as shown in FIG.
By displaying the result in 1, the calculation result of the operation plan is provided to the operator.

Thereafter, with the progress of the automatic operation of the plant, the time measuring means S7 inputs the current process data of the process data setting file T1 at regular intervals and measures the time of each operation item in the time measurement information file T4. start/
The end condition is determined, the operation time of each operation item from the start condition establishment to the end condition establishment is measured, and the current operation time and the start time and end time of the operation item are set in the time measurement information file T4.

The result collecting means S3 detects the actual time of each operation plan from the process data in the process data setting file T1 and collects data such as the turbine speed and the generator output at regular intervals and collects the operation result data setting file. T3
Set to

The process display means S5 displays, in a screen format, each operation result time, which is data of the operation result data setting file T3 set by the result collection means S3, and curve display data such as turbine speed and generator output. By periodically updating the display on the CRT display device C1, an operation plan and operation results are provided to the operator.

Further, at the end of plant operation, for example, FIG.
On the display screen 52 shown in FIG.
When a is performed, the dialogue input unit S6 receives the update request from the operator, and notifies the time measurement unit S7 of the update request for the time measurement information file T4.

In the time measuring means S7, the dialog input means S6
From the notification from
The average time is calculated for the average operation time up to the previous time and set as a new average operation time in the time measurement information file T4.

Next, the processing of the time measuring means S7 will be described.
This will be described in detail with reference to FIG.

First, the time measurement means S7 determines whether the processing is time measurement processing in step S70 or processing based on a notification from the dialogue input means S6. In the case of the processing based on the notification from the input means S6, the processing shifts to processing S78.

Next, in step S71, it is determined whether or not the plant P1 is in an automated operation based on predetermined process data in the process data setting file T1, and if not, the process proceeds to step S77.

In the process S72, it is determined whether or not the automatic operation was also performed last time. Only when the automatic operation was not performed, the measurement start time / measurement end time of all the operation items in the time measurement information file T4 shown in FIG. Clear the time and the set time of the current operation time.

The time measurement information file T4 shown in FIG.
Start operation information pointer T4a and stop operation information pointer T
4b, there are start operation information T4c including a plurality of start operation items i related to the start operation information pointer T4a, and detailed items T4d of each start operation item i. Detail item T4
Areas d, “operation item name”, “measurement start condition”, “measurement end condition”, “measurement start time”, “measurement end time”, and “current operation time” are provided.

Next, in step S73, the current plant automation operation state (start operation / stop operation) is determined, and information on the operation item i for the operation state is stored in the time measurement information file T.
Take out sequentially from 4.

In step S74, the measurement start condition of the operation item i extracted in step S73 is determined from the various process data in the process data setting file T1, and if the condition is satisfied and the measurement start time is not set. Only the current time is set as the measurement start time of the operation item i.

In the process S75, only when the measurement start time of the operation item i is set and the measurement end condition is satisfied and the measurement end time is not set, the current time is measured by the operation item i. Set as the end time. Further, a time difference between the measurement end time and the measurement start time is set as the current operation time of the operation item i.

In step S76, it is determined whether or not steps S73 to S75 have been completed for all of the operation items for the operation state determined in step S73. In this case, the process proceeds to step S73 until all the operation items are completed.

In step S77, after a predetermined time delay,
The processing moves to 70.

On the other hand, in step S78, the dialogue input means S6
From the notification from, all operation items in the time measurement information file T4 are searched, and only the operation items for which the current operation time is set are calculated using the following calculation formula (1) and the average operation time up to the previous time and the current operation time. After calculating the average time with the operation time and setting it as a new average operation time, the process S7
Move the process to 7.

Tn = {[To * (N−1)] + T} / N (1) Tn: new average operation time To: average operation time until last time T: current operation time N: averaging coefficient

Here, the averaging coefficient N is the ratio of the current operation time in calculating the average operation time. When N = 4, the averaging coefficient N is 1/4 (25%) and the average operation time up to the previous operation is the average operation time. Will be calculated. The averaging coefficient N
Can be fixed for each plant, or a setting area can be provided for each operation item in the time measurement information file T4 to have an individual averaging coefficient N for each operation item.

As described above, according to the first embodiment, as the plant operation is repeated, the personal time difference in the operation of the operator is averaged, and the operation time difference due to the change in the plant characteristics in the long-term plant operation is absorbed. Because
The plant can be operated according to the operation plan.

FIG. 6 is a block diagram of a plant monitoring and control apparatus according to a second embodiment of the present invention.

In FIG. 6, the same reference numerals as those in FIG. 19 showing the prior art denote the same or corresponding parts, and the plant monitoring and control device P2B comprises a process input means S1, a schedule calculation means S2, a performance collection means S3, and an automatic operation means S4
, A process display means S5 and an interactive input means S6, a time measuring means S7 and an operation pattern registration means S8 are newly provided, and further, a process data setting file T1, a schedule data setting file T2, an operation result data setting file T3, Newly provided with a time measurement information file T4 and an operation pattern information file T5.
The T display device C1, the touch screen device C2, and the key input device C3 are connected.

Here, the process input means S1 inputs various process data from the plant P1 at regular intervals and sets them in the process data setting file T1. The dialogue input means S6 receives an operation plan calculation request from the operator on the dialogue screen via the touch screen device C2 or the key input device C3, notifies the schedule calculation means S2 of the operation completion request time, and displays the display screen. Receives the update request of the time measurement information file T4 from the operator at the end of the plant operation, notifies the time measurement means S7, receives the operation pattern storage / setting request from the operator on the interactive screen, Notify the pattern registration means S8.

The operation pattern registration means S8 receives an operation pattern storage / setting request notification from the interactive input means S6, and the operation pattern information file T5 corresponding to the pattern number for which data is requested from the time measurement information file T4.
Of the operation pattern information file T5 corresponding to the requested pattern number is set in the time measurement information file T4.

The schedule calculation means S2 determines the current plant state from the process data in the process data setting file T1, and calculates the average operation time of each operation item until the last plant operation set in the time measurement information file T4. , A plant operation plan is calculated based on the notified operation completion request time, and is set in the schedule data setting file T2.

The process display means S5 displays the scheduled operation time, which is the operation plan data of the schedule data setting file T2, on the CRT display device C1 in a screen format.

The automatic operation means S4 outputs a control signal to the plant based on the process data of the process data setting file T1 and the control parameters of the schedule data setting file T2, and performs the automatic operation of the plant.

The result collection means S3 periodically detects the actual time of each operation plan and collects data such as turbine speed and generator output from the process data in the process data setting file T1 as the plant operation proceeds. To the operation result data setting file T3.

Further, the process display means S5 displays each operation result time and curve display data such as turbine speed and generator output stored in the operation result data setting file T3 on the CRT display device C1 in a screen format. Update periodically.

The time measuring means S7 includes an automatic driving means S4
By periodically inputting the current process data of the process data setting file T1 and determining the time measurement start / end conditions of each operation item in the time measurement information file T4 as the plant operation progresses. The operation time of each operation item from when the condition is satisfied to when the end condition is satisfied is measured, and the operation time and the start time and end time of the operation item are set in the time measurement information file T4. Further, for all the operation items whose time has been measured by the update request notification of the time measurement information file T4 from the interactive input means S6, the average time with the average operation time up to the previous time is calculated, and the time measurement information file T4 is calculated as a new average operation time. Set to

With the above configuration, when the operator makes a request to save / set an operation pattern via the dialogue input means S6, the dialogue input means S6 is activated by the touch screen device C2 or the key input device at the end of operation or the like. The interactive screen 53 shown in FIG. 7 is displayed via C3.

The interactive screen 53 shown in FIG. 7 includes an operation pattern list display area 53a and a designated operation pattern No. (Xx) area 53b, operation pattern name area 53c, storage request area 53d, and setting request area 53e
Is provided.

On this dialogue screen 53, an operation pattern storage request is received from the operator, and an operation pattern storage request is notified to the operation pattern registration means S8 together with the requested operation pattern number and operation pattern name.

The operation pattern registering means S8 responds to the operation pattern storage request from the interactive input means S6, and the data of the time measurement information file T4 and the notified operation pattern name correspond to the notified operation pattern number in FIG. In the operation pattern information file T5 shown in FIG.

The operation pattern information file T5 shown in FIG.
Is the operation pattern No. 1 to No. There are n areas T5a, and an operation pattern number area T5b and an operation pattern data area T5c are provided for each operation pattern i.

Further, the dialogue input means S6 receives a driving pattern setting request from the driver on the dialogue screen 53 shown in FIG. 7 via the touch screen device C2 or the key input device C3 at the time of driving planning or the like. An operation pattern setting request is sent together with the requested operation pattern number to the operation pattern registration means S8.
Notify to

The operation pattern registration means S8 extracts the operation pattern data corresponding to the operation pattern number notified from the operation pattern information file T5 by the notification of the operation pattern setting request from the interactive input means S6, and obtains the time measurement information file T4. Set to Then, the interactive input means S
6 receives the operation plan calculation request from the operator on the dialogue screen and notifies the schedule calculation means S2 of the operation completion request time.

The schedule calculation means S2 determines the current plant state from the process data in the process data setting file T1, and calculates the average operation time of each operation item from the time measurement information file T4 set by the operation pattern registration means S8. Then, the operation plan of the plant is calculated based on the operation completion request time notified from the interactive input means S6, and is set in the schedule data setting file T2.

The process display means S5 displays the operation plan data of the schedule data setting file T2 set by the schedule calculation means S2 on the CRT display device C1, thereby providing the operator with a calculation result of the operation plan. This makes it possible to calculate an operation plan in the time measurement information file T4 for each operation pattern stored in advance.

As described above, according to the second embodiment, even if there are differences in plant characteristics due to seasonal temperature differences such as summer / winter, time measurement information can be stored / set according to the operation pattern in each case. Therefore, a more accurate operation plan can be calculated, and the plant can be operated according to the operation plan.

FIG. 9 is a block diagram of a plant monitoring and control apparatus according to a third embodiment of the present invention.

In FIG. 9, the same reference numerals as those in FIG. 19 showing the prior art denote the same or corresponding parts, and the plant monitoring and control device P2C comprises a process input means S1, a schedule calculation means S2, a performance collection means S3, and an automatic operation means S4
, A process display means S5, a dialogue input means S6, a time measuring means S7 and a schedule guidance display means S9, and a process data setting file T1, a schedule data setting file T2, and an operation result data setting file T3. A time measurement information file T4 and a schedule guidance information file T6 are newly provided, and a CRT display device C1, a touch screen device C2, and a key input device C are further provided.
3 and a new chime device C4.

Here, the process input means S1 inputs various process data from the plant P1 at regular intervals and sets them in the process data setting file T1. The dialogue input means S6 receives an operation plan calculation request from the operator on the dialogue screen via the touch screen device C2 or the key input device C3, and notifies the schedule calculation means S2 of the operation completion request time, while displaying the display screen. Receives a request for updating the contents of the time measurement information file T4 from the operator at the end of the plant operation or the like, and notifies the time measurement means S7.

The schedule calculation means S2 determines the current plant state from the process data in the process data setting file T1, and calculates the average operation time of each operation item until the last plant operation set in the time measurement information file T4. , A plant operation plan is calculated based on the notified operation completion request time, and is set in the schedule data setting file T2. At the end of the calculation of the operation plan, the scheduled operation start time and the operation start item number are notified to the schedule guidance display means S9.

The process display means S5 displays the scheduled operation times as the operation plan data of the schedule data setting file T2 on the CRT display device C1 in a screen format.

The automatic operation means S4 outputs a control signal to the plant based on the process data in the process data setting file T1 and the control parameters in the schedule data setting file T2, and performs the automatic operation of the plant.

The performance collection means S3 periodically detects the performance time of each operation plan and collects data such as turbine speed and generator output from the process data in the process data setting file T1 as the plant operation proceeds. To the operation result data setting file T3.

The process display means S5 displays in the CRT display device C1 in the form of a screen, each operation result time, which is data of the operation result data setting file T3, and curve display data such as turbine speed and generator output. Update periodically.

The time measuring means S7 includes an automatic driving means S4
By periodically inputting the current process data of the process data setting file T1 and determining the time measurement start / end conditions of each operation item in the time measurement information file T4 as the plant operation progresses. The operation time of each operation item from when the condition is satisfied to when the end condition is satisfied is measured, and the operation time and the start time and end time of the operation item are set in the time measurement information file T4. Further, for all the operation items whose time has been measured by the update request notification of the time measurement information file T4 from the interactive input means S6, the average time with the average operation time up to the previous time is calculated, and the time measurement information file T4 is calculated as a new average operation time. Set to

The schedule guidance display means S9 receives the notification of the end of the operation plan calculation from the schedule calculation means S2,
The average operation time of each operation item is extracted from the time measurement information file T4, and the scheduled operation start time of each operation item in the schedule guidance information file T6 is calculated and set.

During the operation of the plant, the guidance display conditions and scheduled operation start time of the scheduled guidance information file T6 are periodically monitored, and the scheduled guidance message is periodically displayed on the CRT display device C1 and the chime is displayed. The device C4 also outputs a chime sound to notify the operator.

With the above configuration, when an operator requests a calculation of an operation plan on the dialogue screen 51 as shown in FIG. 2, the dialogue input means S6 receives a request for calculation of the operation plan from the operator. Then, the operation completion request time is notified to the schedule calculation means S2.

The schedule calculation means S2 determines the current plant state from the process data in the process data setting file T1 based on the notification from the interactive input means S6, and determines the last plant operation set in the time measurement information file T4. With reference to the average operation time of each operation item up to the above, a plant operation plan based on the notified operation completion request time is calculated, set in the schedule data setting file T2, and the schedule guidance display means S9.
To the scheduled operation start time and the operation start item number.

The schedule guidance display means S9 takes out the average operation time of each operation item from the time measurement information file T4 based on the notified scheduled operation start time and the operation start item number according to the notification from the schedule calculation means S2.
The scheduled operation start time of each operation item in the schedule guidance information file T6 is calculated and set.

Thereafter, the schedule guidance display means S9 monitors the guidance display condition and the scheduled operation start time of the schedule guidance information file T6 at regular intervals as the automated operation of the plant progresses, and the guidance display condition is satisfied. And the operation item at the earliest scheduled operation start time among the operation items 5 minutes before the scheduled operation start time,
The scheduled guidance message and the remaining time until the scheduled operation start time are periodically displayed on the CRT display device C1, and one minute before the scheduled operation start time, the chime device C4 outputs a chime sound to the operator. Inform.

Next, the processing of the schedule guidance display means S9 will be described in detail with reference to FIG.

First, the scheduled guidance display means S9 determines whether the scheduled guidance display processing or the processing based on the notification from the schedule calculation means S2 is performed in step S90, and in the case of the scheduled guidance display processing, proceeds to step S92. In the case of processing by notification from S2, processing S9
Move the process to 1.

Next, in step S91, the average operation time of the time measurement information file T4 is searched using the operation item number as a search key, and the average operation time and the operation start item number notified by the schedule calculation means S2 are retrieved. Based on the following formula (2), all scheduled operation start times are calculated and set in the scheduled guidance information file T6, and the process S
Move the process to 98.

[0095]

(Equation 1)

FIG. 11 shows the schedule guidance information file T
6 shows the configuration of each area T6 of the guidance information 1 to n.
There is an area T6b for detailed data with respect to a, and the area T6b for detailed data has areas for "operation item number", "guidance display condition", "scheduled start time of operation", and "guidance message".

In step S92, the storage area for storing the information to be displayed for guidance is cleared, and the process proceeds to step S93. In the processing S93, the schedule guidance information file T6
, Each guidance information is sequentially taken out, and the process proceeds to the process S94.

In step S94, the condition determination of the guidance display condition of the guidance information extracted in step S93 and the determination of whether the current time and the scheduled operation start time are 5 minutes before the scheduled time are performed. Goes to step S95.
Otherwise, the process moves to step S96.

In step S95, the contents of the storage area cleared in step S92 are checked, and the guidance display item 5 minutes before the scheduled time has not been detected yet, or the current display item has been displayed more than the already detected display item. When the scheduled time of the item is earlier, the scheduled operation start time and the guidance message of the display item detected this time are stored in the scheduled guidance information file T6, and the process proceeds to step S96.

In step S96, it is determined whether or not steps S93 to S95 have been completed for all pieces of guidance information. If the steps have been completed, the process proceeds to step S97. Until the process is completed, the process proceeds to the process S93.

In step S97, the contents of the storage area cleared in step S92 are checked, and if there is a guidance display item, the remaining time until the start of operation is calculated from the current time and the stored scheduled operation start time. Then, the guidance message and the calculated remaining time are displayed on the CRT display device C1.
To the guidance display.

If the remaining time is less than one minute before, a chime sound is output to the chime device C4. After that, the processing moves to S98. In the process S98, the process is shifted to the process S90 again after a delay of a predetermined time.

As described above, according to the third embodiment, the contents of the operation items and information on the time until the scheduled operation are notified to the operator in advance, and the chime sound is also notified within one minute before. Therefore, it is possible to perform operation monitoring and operation with a margin.

FIG. 12 is a block diagram of a plant monitoring and control apparatus according to a fourth embodiment of the present invention.

In FIG. 12, the same reference numerals as those in FIG. 19 showing the prior art denote the same or corresponding parts, and the plant monitoring and control device P2D includes process input means S1, schedule calculation means S2, performance collection means S3, and automatic operation means S
4, a process display means S5, and an interactive input means S6, a time measuring means S7 and an operation plan printing means S10 are newly provided, and a process data setting file T1, a schedule data setting file T2, and an operation result data setting file T3 are further provided. A time measurement information file T4 is newly provided, and a printing device C5 is newly connected to the CRT display device C1, the touch screen device C2, and the key input device C3.

Here, the process input means S1 inputs various process data from the plant P1 at regular intervals and sets them in the process data setting file T1. The dialogue input means S6 receives an operation plan calculation request from the operator on the dialogue screen via the touch screen device C2 or the key input device C3, and notifies the schedule calculation means S2 of the operation completion request time, while displaying the display screen. Receives an update request of the contents of the time measurement information file T4 from the operator at the end of plant operation, notifies the time measurement means S7, receives a print request from the operator at the end of operation, and prints the operation plan. The print request is notified to the means S10.

The schedule calculation means S2 determines the current plant state based on the process data in the process data setting file T1, and calculates the average operation time of each operation item until the last plant operation set in the time measurement information file T4. , A plant operation plan is calculated based on the notified operation completion request time, and is set in the schedule data setting file T2. At the end of the calculation of the operation plan, the scheduled operation start time and the operation start item number are notified to the operation plan printing means S10.

The process display means S5 displays the scheduled operation times as the operation plan data of the schedule data setting file T2 on the CRT display device C1 in a screen format.

The automatic operation means S4 outputs a control signal to the plant based on the process data of the process data setting file T1 and the control parameters of the schedule data setting file T2, and performs the automatic operation of the plant.

The performance collection means S3 periodically detects the performance time of each operation plan and collects data such as the turbine speed and the generator output from the process data in the process data setting file T1 as the plant operation proceeds. To the operation result data setting file T3.

The process display means S5 displays in the CRT display device C1 the actual operation time and the curve display data such as the turbine speed and the generator output, which are the data of the operation result data setting file T3, in a screen format. Update.

The time measuring means S7 includes an automated driving means S4
By periodically inputting the current process data of the process data setting file T1 and determining the time measurement start / end conditions of each operation item in the time measurement information file T4 as the plant operation progresses. The operation time of each operation item from when the condition is satisfied to when the end condition is satisfied is measured, and the operation time and the start time and end time of the operation item are set in the time measurement information file T4. Further, for all the operation items whose time has been measured by the update request notification of the time measurement information file T4 from the interactive input means S6, the average time with the average operation time up to the previous time is calculated, and the time measurement information file T4 is calculated as a new average operation time. Set to

The operation plan printing means S10 responds to the operation plan end notification from the schedule calculation means S2 based on the average operation time of each operation item in the time measurement information file T4, and each operation item name / operation start / end schedule. The time and scheduled operation time are printed out to the printing device C5. In addition to the print request notification from the interactive input means S6, the printing device adds the actual time of each operation start / end in the time measurement information file T4 and the time difference between the actual operation time and the scheduled operation time together with the print contents. Print out to C5.

With the above configuration, when the operator requests the operation plan calculation on the dialogue screen, the dialogue input means S
6 receives the operation plan calculation request from the operator and notifies the schedule calculation means S2 of the operation completion request time.

The schedule calculating means S2 determines the current plant state based on the process data in the process data setting file T1 according to the notification from the interactive input means S6, and determines the last plant operation set in the time measurement information file T4. With reference to the average operation time of each operation item up to, the operation plan of the plant based on the notified operation completion request time is calculated, set in the schedule data setting file T2, and operated to the operation plan printing means S10. Notify the scheduled start time and operation start item number.

The operation plan printing means S10 searches the time measurement information file T4 based on the notified operation start item number based on the notification from the schedule calculation means S2, and executes the operation item name and the average operation time from the operation start to the operation end. At the same time, the scheduled operation start and end times of the extracted operation items are calculated from the notified operation start time / operation start item number and the average operation times extracted, and the operation item name is sent to the printing device C5. Item, operation start time, operation end time,
By printing the scheduled operation time (average operation time),
Provide details of the operation plan to operators.

Further, when a printing request is made by the operator on the screen at the end of plant operation or the like, the following operation is performed.

When the print request 54a in the dialogue screen 54 area shown in FIG. 13 is designated, the dialogue input means S6 receives a print request from the operator and notifies the operation plan printing means S10 of the print request.

As a result, the operation plan printing means S10 starts / stops the operations in the time measurement information file T4.
The actual end time and the actual operation time (current operation time) are searched, and the time difference between the scheduled operation time at the end of the operation plan and the actual operation time (current operation time) is calculated, and a print output example 55 shown in FIG. And the operation result column 5 together with the information in the operation item name column 55a and the operation schedule column 55b at the end of the operation plan.
5c and the contents of the operation time difference column 55d
Print out to 5. As a result, the difference between the operation plan and the operation result for each operation item is notified to the operator.

As described above, according to the fourth embodiment, it becomes clear what operation items are included in the operation plan, and when the operation is completed, it is determined which operation item caused the operation to fail according to the operation plan. The analysis becomes easy, and the analysis result can be utilized for the next plant operation, so that the operation can be easily performed according to the operation plan.

FIG. 15 is a block diagram of a plant monitoring and control apparatus according to a fifth embodiment of the present invention.

In FIG. 15, the same reference numerals as those in FIG. 19 showing the conventional example denote the same or corresponding parts, and the plant monitoring and control device P2E includes process input means S1, schedule calculation means S2, performance collection means S3, and automatic operation means S4.
, A process display means S5, a dialogue input means S6, and a new time measuring means S7, and a process data setting file T1, a schedule data setting file T2, an operation result data setting file T3, and a new time measurement information file T4. And schedule selection data setting file T7
And a CRT display device C1, a touch screen device C2, and a key input device C3 are connected.

The process input means S1 inputs various process data from the plant P1 at regular intervals and sets them in the process data setting file T1. Dialogue input means S
6 receives an operation plan calculation request from the operator on the interactive screen via the touch screen device C2 or the key input device C3, and notifies the schedule calculation means S2 of the operation completion request time.

Further, when there is a request from the operator to select the start mode (low speed / medium speed / high speed) of the turbine, the mode selection request is notified to the schedule calculation means S2 together with the selected start mode, and displayed. Time measurement information file T from the operator at the end of plant operation on the screen
In response to the update request of No. 4, it notifies the time measuring means S7.

The schedule calculation means S2 determines the current plant state based on the process data in the process data setting file T1, and calculates the average operation time of each operation item until the last plant operation set in the time measurement information file T4. , A plant operation plan is calculated based on the notified operation completion request time, and is set in the schedule data setting file T2 and the schedule selection data setting file T7 corresponding to the detected start mode. Further, an operation plan in the case of a lower (lower-speed mode / medium-speed mode / high-speed mode) (low-speed mode <medium-speed mode <high-speed mode) than the start-up mode of the turbine (low-speed mode / medium-speed mode / high-speed mode) detected in this operation plan is additionally calculated. It is set in the schedule selection data setting file T7 corresponding to the mode.

In response to the mode selection request notification from the interactive input means S6, data corresponding to the notified start mode is set in the schedule data setting file T2.

The process display means S5 displays the operation plan data of the schedule selection data setting file T7 in a screen format on the CRT display C1.

The automatic operation means S4 outputs a control signal to the plant based on the process data in the process data setting file T1 and the control parameters in the schedule data setting file T2, and performs the automatic operation of the plant.

The performance collecting means S3 periodically detects the performance time of each operation plan and collects data such as turbine speed and generator output from the process data in the process data setting file T1 as the plant operation proceeds. To the operation result data setting file T3.

The process display means S5 displays the operation plan data in the schedule data setting file T2 and the actual operation times, which are the data in the operation result data setting file T3, and the curve display data such as the turbine speed and the generator output. The information is displayed on the CRT display device C1 in a screen format, and is periodically updated.

The time measuring means S7 is composed of an automated driving means S4
By periodically inputting the current process data from the process data setting file T1 and determining the time measurement start / end conditions of each operation item in the time measurement information file T4 as the plant operation proceeds, The operation time of each operation item from the start condition establishment to the end condition establishment is measured, and the operation time and the start time and end time of the operation item are set in the time measurement information file T4.

Further, for all the operation items whose time has been measured by the update request notification of the time measurement information file T4 from the interactive input means S6, the average time with the average operation time up to the previous time is calculated, and the time measurement is performed as a new average operation time. Set in the information file T4.

With the above configuration, when the operator requests the calculation of the operation plan on the dialogue screen 56 shown in FIG. 18, the dialogue input means S6 receives the request of the operation plan calculation from the operator and receives the schedule calculation. The operation completion request time is notified to the means S2.

The schedule calculating means S2 determines the current plant state based on the process data in the process data setting file T1 according to the notification from the interactive input means S6, and determines the last plant operation set in the time measurement information file T4. With reference to the average operation time of each operation item up to, a plant operation plan based on the notified operation completion request time is calculated, and the schedule selection data corresponding to the schedule data setting file T2 and the detected start mode is calculated. Set in the setting file T7.

FIG. 17 shows the structure of the schedule selection data setting file T7. The schedule selection data setting file T7 has low-speed mode information, medium-speed mode information, and high-speed mode information areas T7a. There is a detailed information area T7b inside the area.
c and a turbine heat soak time area T7d.

Next, in the case of a start mode (low-speed mode <medium-speed mode <high-speed mode) lower than the turbine start mode (low-speed mode / medium-speed mode / high-speed mode) which is the operation mode detected in this operation plan. The operation plan is additionally calculated and set in the schedule selection data setting file T7 corresponding to each start mode.

In the process display means S5, a display is made on the CRT display device C1 in the start mode column corresponding to the operation plan data of each start mode in the schedule selection data setting file T7 set by the schedule calculation means S2.
Here, only the operation plan data set in the schedule data setting file T2 is displayed on the interactive screen 56 of FIG. Thereafter, when the operator requests the start mode other than the schedule column in FIG. 18 to be selected, the interactive input means S6
Receives a request to select one of the start modes (low speed / medium speed / high speed) of “select low speed mode” 56a “select medium speed mode” 56b “select high speed mode” 56c in FIG. , A mode selection request is notified to the schedule data setting file T2.

In the schedule calculation means S2, according to the mode selection request notification from the interactive input means S6, the operation plan data in the information area in the schedule selection data setting file T7 corresponding to the notified start mode is transferred to the schedule data setting file T2. Set.

At this time, the operation plan data set by the operator and set in the schedule data setting file T2 is displayed in the schedule column of the operation result display screen as shown in FIG. 4 by the process display means S5. Further, in the subsequent plant operation, the automated operation is performed by the automated operation means S4 based on the operation plan data selected by the operator and set in the schedule data setting file T2.

Next, the processing of the schedule calculation means S2 will be described in detail with reference to FIG.

First, in step S20, the schedule calculating means S2 determines the contents of the notification from the interactive input means S6. If the request is an operation plan calculation request, the process proceeds to step S21. If the request is a start mode selection request, the process proceeds to step S24. Transfer processing. Processing S
At 21, all schedule selection data setting files T7 are cleared. Further, the current plant state (eg, start mode) is determined from the process data in the process data setting file T1, and the average operation time of each operation item in the previous plant operation set in the time measurement information file T4 is referred to. Then, the operation plan of the plant at the notified operation completion request time is calculated, set in the schedule data setting file T2 and the schedule selection data setting file T7 corresponding to the detected start mode, and the process proceeds to step S22.

At step S23, the schedule calculation means S
If the startup mode detected in Step 2 is higher than the high-speed mode, calculation processing of the operation plan in the medium-speed mode is performed, the result is set in the schedule selection data setting file T7 in the medium-speed mode, and the processing is terminated.

In the process S24, the operation plan data of the schedule selection data setting file T7 corresponding to the start mode notified from the interactive input means S6 is taken out, set in the schedule data setting file T2, and the process is terminated.

As described above, according to the fifth embodiment, the operation plan in several operation modes is provided to the operator, and the operation plan can be selected according to the judgment of the operator. Therefore, the life extension of the equipment such as the turbine is considered. Automatic plant operation is also possible.

[0145]

As described above, according to the first aspect of the present invention, an average operation time of each operation item is calculated based on each operation time measured for each operation item, and a new operation plan is created based on the average operation time. Since the calculation is performed, the obtained operation plan is in accordance with the condition of the plant, and the actual operation of the plant can be performed according to the operation plan. Therefore, it is possible to eliminate the inconvenience that the actual operation is not performed according to the operation plan that does not conform to the actual situation due to the individual differences of the operators or the characteristics of the plant and that the operation is not completed according to the operation plan.

According to the second aspect of the present invention, a new average operation time is calculated for each operation item in consideration of the current operation results in addition to the average operation time up to the previous operation, and a new average operation time for each operation item is calculated. Since the operation plan is calculated so that the operation is completed at the specified operation completion request time using the average operation time, the actual operation can be performed according to the accurate operation plan according to the actual situation, and the operation completion time may be longer than expected Inconvenience of hastening does not occur.

According to the third aspect of the present invention, since the operation plan is calculated based on a plurality of operation patterns and an appropriate operation pattern selected according to the situation, there is no difference between the actual operation and the operation plan, and the efficiency is improved. Driving is possible.

According to the fourth aspect of the present invention, since the guidance information is notified to the outside immediately before the scheduled operation time of each operation item, the operator knows the next operation item in advance and works with a margin. As a result, the workload of the operator can be greatly reduced.

Further, according to the fifth aspect of the present invention, necessary various operation plans and operation results are printed and provided to the operator, so that the printed information is saved so that the previous time and the current time can be easily compared. It can be used for the next driving.

According to the invention of claim 6, when there are a plurality of operation modes in the operation item, the operation is performed by selecting an appropriate operation mode according to the operation plan, so that the life of the equipment of the plant or the like can be improved. The plant can be operated in consideration of the above.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a plant monitoring and control device according to a first embodiment of the present invention.

FIG. 2 is an example of an interactive screen showing the first embodiment of the present invention.

FIG. 3 is a configuration diagram of a time measurement information file according to the first embodiment of the present invention.

FIG. 4 is an example of a performance display screen showing the first embodiment of the present invention.

FIG. 5 is a flowchart of a process of a time measuring unit according to the first embodiment of the present invention.

FIG. 6 is a configuration diagram of a plant monitoring and control device according to a second embodiment of the present invention.

FIG. 7 is an example of an interactive screen showing a second embodiment of the present invention.

FIG. 8 is a configuration diagram of an operation pattern information file showing a second embodiment of the present invention.

FIG. 9 is a configuration diagram of a plant monitoring and control device according to a third embodiment of the present invention.

FIG. 10 is a flowchart of a process performed by a scheduled guidance display unit according to the third embodiment of the present invention.

FIG. 11 is a configuration diagram of a schedule guidance information file according to a third embodiment of the present invention.

FIG. 12 is a configuration diagram of a plant monitoring and control device according to a fourth embodiment of the present invention.

FIG. 13 is a result display screen example showing the fourth embodiment of the present invention.

FIG. 14 is an example of operation plan printing showing the fourth embodiment of the present invention.

FIG. 15 is a configuration diagram of a plant monitoring and control device according to a fifth embodiment of the present invention.

FIG. 16 is a flowchart of a process of a schedule calculating means according to the fifth embodiment of the present invention.

FIG. 17 is a configuration diagram of a schedule selection data setting file according to a fifth embodiment of the present invention.

FIG. 18 is an example of a dialogue screen showing a fifth embodiment of the present invention.

FIG. 19 is a configuration diagram of a conventional plant monitoring and control device.

FIG. 20 is an example of a result display screen in a conventional plant monitoring and control device.

[Explanation of symbols]

 P2 Plant monitoring and control device C1 CRT display device C2 Touch screen device C3 Key input device C4 Chime device C5 Printing device S1 Process input means S2 Schedule calculation means S3 Result collection means S4 Automated operation means S5 Process display means S6 Interactive input means S7 Time measurement Means S8 Operation pattern registration means S9 Schedule guidance display means S10 Operation plan printing means T1 Process data setting file T2 Schedule data setting file T3 Operation result data setting file T4 Time measurement information file T5 Operation pattern information file T6 Schedule guidance information file T7 Schedule selection Data setting file

Claims (6)

[Claims] 1. A plant monitoring and control device for monitoring and controlling an automatic operation of a plant according to an operation plan obtained by inputting various information from the plant and calculating a plant operation plan. Time measurement means for measuring the operation time, calculating an average operation time for each operation item based on the measured operation time, and storing the average operation time in a time measurement information file; and each of the operations stored in the time measurement information file A plant monitoring and control device, comprising: schedule calculation means for calculating a plant operation plan based on an average operation time of an item. 2. Process input means for inputting various process data from a plant for each cycle and setting the process data in a process data setting file; and A result collection means for detecting the actual time and collecting necessary device data and setting the result in an operation result data setting file, and each operation stored in a time measurement information file by inputting current process data from the process data setting file Judgment is made based on the measurement start / end conditions of the items, the operation time of each operation item from the measurement start condition satisfaction to the measurement end condition satisfaction is measured, and the current operation time measured for each operation item and the measurement start The time and the measurement end time are stored in the time measurement information file, and all the operation items for which the time was measured are stored. A time measurement unit that calculates the average operation time by adding the present operation result to the average operation time up to the previous time and saves the average operation time as a new average operation time in the time measurement information file. Judgment of the plant state of, referring to the average operation time of each operation item up to the last plant operation set in the time measurement information file, to create plant operation plan data, schedule data setting file Schedule calculation means to be set, and automatic operation means for outputting a control signal to the plant and performing an automatic operation of the plant by using the process data of the process data setting file and the control parameters stored in the schedule data setting file. A plant monitoring and control device, comprising: 3. The data from the time measurement information file generated by the schedule calculation means or taken out by a request to an operation pattern information file for storing data of a plurality of operation patterns representing operation schedules as operation result data. 3. The plant monitoring control according to claim 1, further comprising an operation pattern registration unit that sets the operation plan as a new operation pattern, and calculates the operation plan based on the operation pattern accumulated according to the situation. apparatus. 4. A schedule guidance information file for storing necessary guidance information including a scheduled operation time and guidance display conditions for each operation item, and an average time of each operation item from the time measurement information file. The time is calculated and stored in the scheduled guidance information file, and it is determined whether a predetermined guidance display condition is satisfied.
2. A schedule guidance display means for displaying and outputting schedule guidance information to the outside in advance.
Or the plant monitoring and control device according to claim 2. 5. An operation plan printing display means for displaying or printing the scheduled operation time of each operation item of the operation plan created with reference to the average operation time of the past results and the operation time of the current operation results. The plant monitoring and control device according to claim 1 or 2, wherein: 6. A schedule selection data setting file for setting a plurality of operation modes according to an operation plan, wherein an operation mode is selected from the schedule selection data setting file according to the operation plan calculated by schedule calculation means. 3. The plant monitoring and control device according to claim 1, wherein the operator is notified.