JPS61224832A - Power generation plant monitor/controller - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention [Technical Field of the Invention] The present invention relates to a monitoring and control device for a power generation plant consisting of a plurality of power generation units, and particularly to a system for separating information during testing and adjustment of power generation units from information during normal operation. The present invention relates to a power generation plant monitoring and control device suitable for outputting to operators and testers.

[Technical background of the invention and its problems A co-power generation plant in which a plurality of power generation units are operated in a system as one power generation plant is known. The central control room that operates this power generation plant is designed to allow a small number of operators to centrally monitor and control multiple power generation units.

In such a power plant, each power generation unit has one
Each power generating unit is constructed and commissioned one by one independently, and regular unit inspections are carried out one by one throughout the year, and trial runs during regular inspections are carried out when other power generating units are in normal operation, just as they were during construction. It will be done.

Therefore, when providing plant information to operators conducting normal operations or testers in charge of test adjustments, it is necessary to provide information for each periodic inspection, such as hardware regular inspections, software adjustments, and test runs, as well as information for normal operations. It is necessary to provide the information in a form that allows the distinction between the two. In addition, by classifying this information,
It is necessary to provide information for normal operation to operators, and information for periodic inspections to testers in charge of test adjustments.

However, in a conventional power generation plant consisting of multiple power generation units of this type, information during normal operation and information during test adjustment are separated and displayed on a CRT, typer output,
Since the system was not configured to turn on/off the alarm window, there was a problem in that the monitoring and control of one power plant could not be carried out efficiently.

[Objective of the Invention] An object of the present invention is to enable operators to select and output information during testing and adjustment of power generating units and other information during normal operation in a power generating plant consisting of a plurality of power generating units. Our objective is to provide a power plant monitoring and control system that provides testers with the optimal information they need and allows them to perform their work more smoothly.

[Summary of the invention] The present invention uses multiple power generation units as one power generation unit.

In a power generation plant monitoring and control system that is equipped with a computer that performs overall monitoring and control as a plant, multiple display devices connected to this computer that display plant information, and an operator console that performs man-machine communication, multiple display devices a display selection device for selecting at least which power generation unit information is to be displayed; and an operation status setting means for setting, from the operator console, a classification of whether each power generation unit is under test adjustment or under normal operation;
Display output means for outputting various displays on the display device based on the selected state of the display selection device and the operating state of each power generating unit set by the operating state setting means is provided, so that each power generating unit can be operated normally. It is characterized by displaying and outputting information by separating the information inside and the information during test adjustment.

[Embodiments of the Invention] Hereinafter, an example will be given in which the present invention is applied to a combined power generation plant containing a plurality of combined power generation units that use waste heat from a gas turbine to rotate a steam turbine and drive a generator.
An example thereof will be explained.

FIG. 1 shows a configuration diagram of a combined cycle power generation plant monitoring and control device according to an embodiment of the present invention. 1 and.

A plurality of CRTs 21 connected to the computer 1. Typewriter 22. Operator console 23. A peripheral device 2 consisting of an alarm window 24, and a CRT display selection device @3 for selecting which combined power generation unit is to use a plurality of CRTs 21.

Operator console 23 as part of the functionality of computer 1
an operating status setting means 4 for setting the operating status of a combined power generation plant, which sets the classification of each combined cycle unit as being under test adjustment or normal operation, and displays and manages these classifications on a CRT 21; A plant monitoring function 5 that monitors the power generation plant, which is one of the functions, and a computer 1
The plant control function 6, which automatically operates the power generation plant, which is one of the functions of Display output means 7 is selected by the CRT display selection device 3 and outputs information to the CRT.
By classifying and displaying information from the display output means 7 between the information during regular inspections or test runs of each combined cycle unit 10 and the information during normal operation, optimal information necessary for operators and testers is provided. It provides:

That is, a computer 1 that comprehensively monitors multiple combined cycle power generation units as one power generation plant has a plant monitoring function 5 that monitors N power generation units as one power generation plant, and a plant control function 6 that also automatically operates. , obtains the information output request signal a from them, and receives the information output request signal a from the CRT21. Typewriter 22. A display output means 7 for outputting a display output signal d to peripheral equipment 2 comprising an alarm window 24, and an operation status setting means 4 for setting the operation status of each combined power generation unit from an operator console are incorporated.

The operating condition setting means 4 allows three types of operating conditions to be set by setting from the operator console.

That is, there are three states: (a) normal operation, (b) information display output required during test adjustment, and (c) information display output unnecessary during test adjustment, and these three states are the operating status setting means 4. stored in memory.

The display output means 7 outputs the CRT from the CR7 display selection device 3.
Selection Selection signal Upstream CRT display information is selected. That is,
As shown in Fig. 2, the CR7 display selection device 3 is used to select which combined cycle unit (this is called the normal axis) information is to be displayed, or system information regarding the entire power plant is to be displayed. A pushbutton switch 31 for selection; a pushbutton switch 32 for selecting what information is to be displayed regarding the selected combined power generation unit;
A pushbutton switch 33 and the like are provided for selecting functions such as converting displayed information into a hard copy. By operating these pushbutton switches, it is possible to select which combined cycle unit information to display for each CRT or to display information about the entire power plant.1 The selected state is stored in the memory of the display output means 7. be done.

The display output means 7 obtains the information output signal a and outputs the display output signal d.
When outputting, the operating status signal is extracted and divided into three categories: display output during normal operation, information display output during test adjustment, and information display output bypass during test adjustment.
As for the CRT, processing is performed to determine on which CRT the display output during normal operation and the information display output during test adjustment are to be displayed based on the CRT selection selection signal stored in the memory of the display output means 7.

FIG. 3 is a diagram illustrating the processing operation of the driving condition setting means 4. When the operating status of each combined power generation unit is inputted from the operator console 23, the operating status setting means 4
should judge this setting input (301, 302), and display output of information is necessary during normal operation (303) and test adjustment (30
4) During test adjustment, the information is classified as not requiring display output (305) and is stored for each combined power generation unit.

Next, the operation of displaying and outputting information on a desired combined power generation unit on the CRT 21 will be explained using FIGS. 4 and 5.

As shown in FIG. 4 and described above, the plant monitoring function 5 and the plant control function 6 output the display output means 7 with the number al of the combined power generation unit, the display mode a2. An information output signal a consisting of message output information a3 is input. On the other hand, the operating status setting means 4 inputs an operating status signal representing the operating status of each power generation unit, which is set and stored in advance by the operator console 23. In addition, the CR7 display selection device 3
From there, a CRT selection selection signal is sent to each CRT 21 to select which power generation unit information is to be displayed and how.

The display output means 7 outputs these signals a as shown in FIG.
, b, e are obtained (501, 502), whether it is in normal operation or not (
503) Whether or not information display output is necessary during test adjustment (5
04), and further CRT selection selection signal upstream information output signal a
Determine whether or not a CRT that outputs is selected (505
, 506) L, T, If information display output is required during normal operation or test adjustment, and the CRT to be displayed is selected, the information output signal attc is output.
It converts it into an RT display signal d (507, 508), and outputs the signal d to the selected CRT 21 (509).

On the other hand, if the CRT is not selected, the creation and output of the CRT display signal d is bypassed6. Information output classified as unnecessary for information display output during test adjustment.

The signal a is bypassed in the generation and output of the CRT display signal d.

Similarly, when outputting information from the combined power generation unit to the typewriter 22 or alarm window 24, the sixth
Signal processing as shown in the figure is performed.

That is, the display output means 7 obtains the information output signal a from the plant monitoring function 5 and the plant control function 6 (601).
According to the driving status signal, the information output signal a is classified into information display output required during normal operation, test adjustment, and information display output unnecessary during test adjustment (603, 604). ). Next.

A display output signal d is generated from the information output signal a classified during normal operation and test adjustment (605, 606).

The display output signal d is outputted to each typewriter 22 and the alarm window 24 (607), and the information output signal a, which was classified as not requiring information display output during the test adjustment, is bypassed from generation and output of the display output signal.

In the above embodiment, a combined power generation unit in which a gas turbine and a steam turbine are combined is used as an example of the power generation unit, but the present invention is not limited to this.

Of course, the same effects can be obtained regardless of the configuration of the power generation unit.

Further, in the above embodiment, a supervisory control device using a computer has been described, but it goes without saying that it can also be easily realized by a digital control device using a microcomputer.

[Effects of the Invention] As described above, according to the present invention, display information for normal operation and test adjustment of a power generation plant consisting of a plurality of power generation units can be provided separately. be able to carry out their work smoothly. In particular, since a small number of operators operate multiple combined power generation units, psychological stress can be reduced and the system can contribute to safe plant operation.

[Brief explanation of the drawing]

Fig. 1 is an overall configuration diagram of a power plant monitoring and control device according to an embodiment of the present invention, Fig. 2 is a configuration diagram of a CRT display selection device shown in Fig. 1, and Fig. 3 is an operational status diagram of Fig. 1. FIG. 4 is a conceptual diagram explaining the signal flow of FIG. 1; FIG. 5 is a processing block diagram of the display output means of FIG. 1 when outputting a CRT display; FIG. FIG. 6 is a processing block diagram of the typewriter and alarm window 1 display output of the display output means of FIG. 1. DESCRIPTION OF SYMBOLS 1... Computer, 2... Peripheral equipment, 3... CRT display selection device, 4... Operating status setting means, 5... Plant monitoring function, 6... Plant control function, 7... -Display output means, 10...combined power generation unit, 21...
CRT, 22...Typewriter, 23...Operator console, 24...Alarm window. Figure 1 Figure 4 Figure 5 Figure 6

Claims (1)

[Claims] Power generation plant monitoring equipped with a computer that collectively monitors and controls multiple power generation units as one power generation plant, multiple display devices connected to this computer that display plant information, and an operator console that performs man-machine communication. In the control device, a display selection device selects at least information about which power generation unit is to be displayed on a plurality of display devices, and an operation status that sets a classification of each power generation unit as being under test adjustment or normal operation from the operator console. a setting means; and a display output means for outputting various displays on the display device based on the selection state of the display selection device and the operating state of each power generation unit set by the operating state setting means, A power generation plant monitoring and control device characterized in that information display output is performed by dividing information during normal operation and information during test adjustment.