JPH02125284A - Power plant operation training simulator - Google Patents

Abstract

PURPOSE:To obtain the simulator which never spoils the time reality of the process of each model at a low cost by providing a driving cycle table which is stored with driving cycles of respective models corresponding to parameters and referenced when a model scheduler actuates a model. CONSTITUTION:The driving cycles of the respective models which are variable corresponding to the parameters are stored in the driving cycle table 10 so as to use a time step as a time matching an arithmetic quantity by an input parameter. This driving cycle table 10 is referenced when the model scheduler 5 drives the respective models to determine the driving cycle of each model dynamically by the model scheduler 5. Consequently, the time reality of arithmetic operation of each model is secured and the simulator which performs operation close to that of an actual plant is obtained at low cost.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a power generation plant operation training simulator that simulates operation training in order to improve the operational reliability and availability of a power generation plant. be.

[Conventional technology]

FIG. 3 is a conceptual diagram of a conventional power plant operation training simulator disclosed in, for example, Japanese Patent Publication No. 62-43187. In the figure, 1 is a plant simulation computer system that simulates plant dynamic characteristics, and 2 is an operation training simulator. 3 is a simulated central control panel on which the operator O8 operates switches and displays the plant status; and 3 is an instructor console where the training instructor sets the initial state of the training he/she wishes to carry out and abnormal events. In addition, O8 will provide driver training personnel to O8.
I indicates each training instructor.

FIG. 4 shows the software structure in the plant simulation computer system 1. 4 is a contact input processing program that inputs parameters set by the switches of the simulated central control panel 2; 5 is a model scheduler that executes each model program (model); 6 is a dynamic characteristics program that simulates the dynamic characteristics of the power generation plant. , 7 is a control system program that simulates a control system, 8 is a periodic sequence blog that simulates status signals of devices and switches, etc.
is a time sharing system that executes the contact input processing program 4, model scheduler 5, etc. at appropriate timing.
It is an operating system.

FIG. 5 shows in more detail the internal structure of the dynamic characteristic program 6, which is divided into a large number of models 6a, . . ., 6n, such as model A 6a and model B 6b.

Next, the operation will be explained. The training instructor 0 uses the instructor console 3 to set the initial state of the training he wants to implement and to set abnormal events.

On the other hand, the driving trainer O8 identifies abnormalities using indicators, display lamps, alarms, etc. on the simulated central control panel 2, and performs various operations in response to the abnormalities. For example, by operating switches on the simulated central control panel 2, operations are performed to restore the plant to a normal state. The plant simulation computer system 1 receives parameters from the switches operated by the operator trainee O8, transmits them to the dynamic characteristic program 6 through the processing of the contact input processing program 4, and simulates the plant dynamic characteristics.

Each model 6a...6n of the dynamic characteristic program 6 is processed by the model scheduler 5 as shown in FIG. 1
．． etc. is activated periodically at each time step. In order to ensure the real-time performance of the simulator, each model 6a.
...6n operations must be completed within the time step time. However, each model 6a...6n needs to accurately simulate plant behavior even in the event of an accident.
The content is detailed.

Therefore, various speed-up methods and algorithms have been introduced to ensure real-time performance, but the amount of calculation differs for each time step.

[Problem to be solved by the invention]

Since the conventional power plant operation training simulator is configured as described above, the model 6 regarding the same dynamic characteristics is
Even with a...6n, there are many problems such as the amount of calculations differing at each time step due to differences in parameters, etc.), and the real-time performance is impaired due to exceeding the time of the time step. However, there was a problem in that using a large, high-speed computer to ensure real-time performance would result in an expensive system.

This invention was made to solve the above-mentioned problems, and even if the amount of calculation changes due to changes in parameter values, the processing of each model is completed within a specified time, and has real-time performance. The purpose is to obtain an intact power plant operation training simulator at low cost.

[Means to solve the problem]

The power plant operation training simulator according to this invention includes:
In order to set the time step to a time commensurate with the amount of calculations based on the input parameters, the drive cycle of each model is stored in the drive cycle table, which is made variable in accordance with the parameter.

[Effect]

The driving period table in this invention is referred to when the model scheduler starts each model, and serves as a reference for the model scheduler to dynamically determine the driving period of each model.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. 1st
In the figure, numerals 4 to 9 are the same as those constituting the software structure of the conventional plant simulation computer system 1 shown in FIG. 10 is each model 6 corresponding to the parameter
a... This is a drive cycle table that stores drive cycles every 6n. Note that the conceptual diagram of the power plant operation training simulator and the diagram showing the internal structure of the dynamic characteristic program are the same as FIG. 3 and FIG. 5, respectively.

Next, the operation will be explained with reference to FIG.

In Figure 2, the downward arrows indicate model Aha and model B.
6b and 6c are shown to be activated by the model scheduler 5. The drive cycle of each model 68 to 6c is determined by the model scheduler 5 in the drive cycle table 1.
It is determined according to the content of 0, for example, t. It is assumed that the driver trainer O8 changes the settings of the switches on the simulated central control panel 2 at the timing of . Assuming that the parameters related to the changed switches affect the calculation of the model B 6b, the drive cycle of the model B 6b corresponding to the changed parameters is stored in the drive cycle table 10 in advance, so the model scheduler 5 is model B with a new drive period according to the stored value.
6b.

After that, assume that the driver trainer O8 changes the switches again at the timing tll, and the parameters that affect the calculation of the model B 6b are changed. Then, the model Skagejima-25 refers to the drive cycle table 10 and changes the drive cycle of the model B 6b again.

〔Effect of the invention〕

As described above, according to the present invention, the power plant operation training simulator is configured such that the model scheduler dynamically determines the drive cycle of each model by referring to the drive cycle table. gender is ensured,
This has the effect of making it possible to obtain a plant that operates more like an actual plant at a lower cost.

[Brief explanation of drawings]

Fig. 1 is a configuration diagram showing the software configuration of a plant simulation computer system for a power plant operation training simulator according to an embodiment of the present invention, Fig. 2 is a time chart showing the driving of each model, and Fig. 3 is a power plant operation A conceptual diagram of the training simulator, Figure 4 is a configuration diagram showing the software configuration of the plant model computer system of the conventional power plant operation training simulator, Figure 5 is a configuration diagram showing the configuration of the dynamic characteristics program, and Figure 6 is It is a time chart showing the driving of each model in a conventional power plant operation simulator. 1 is a plant simulation computer system, 2 is a simulation central control panel, 3 is an instructor console, 4 is a contact input processing program, 5 is a model scheduler, 6 is a dynamic characteristic program, 6a to 6n are models, 7 is a control system program, 8
9 is a periodic sequence program, 9 is a time-sharing operating system, and 10 is a drive cycle tape. In the figures, the same reference numerals indicate the same or corresponding parts. Patent Applicant: Mitsubishi Electric Corporation (2 others)

Claims (1)

[Claims] A simulated central control panel having switches for changing parameters, and an operation unit of a dynamic characteristic program that simulates plant dynamic characteristics by inputting the parameters changed by operating the switches of the simulated central control panel. a plant simulation computer system in which a model scheduler periodically drives a plurality of models and outputs the results to the simulation central control panel; and an instructor console in which a training instructor sets the initial state of operation training and abnormal events. The power plant operation training simulator is characterized by comprising a drive cycle table that stores drive cycles of each of the models corresponding to the parameters and is referred to by the model scheduler when starting the models. Power plant operation training simulator.