Plant Dynamic Simulation Initialization from Static Model Results

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Solution Overview

Problem

Current simulation systems for plant design and operation require skilled operators and are labor-intensive, especially for large-scale plants, as they involve manual conversion and adjustment of parameters, leading to longer processing times and reduced efficiency.

Innovation Solution

An apparatus and method that automatically generates a dynamic model and simulation results by converting static model parameters into initial values for a dynamic simulator, reducing the need for manual intervention and improving efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual conversion and adjustment of parameters is performed for dynamic simulation, then simulation accuracy can be maintained, but processing time increases and labor requirements increase

Engineering Contradiction:
Improvesimulation accuracyVSAvoidprocessing time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system performs preliminary conversion of static model parameters into dynamic model parameters before the actual dynamic simulation. The parameter conversion unit automatically converts parameters from the static model to the dynamic model based on predetermined conversion rules, preparing all necessary parameters in advance so that the dynamic simulation can proceed without manual intervention and time loss.

Inventive Principle:
Principle #10Preliminary action

2Measurement precision

If manual conversion and adjustment of parameters is performed for dynamic simulation, then simulation accuracy can be maintained, but labor requirements increase

Engineering Contradiction:
Improvesimulation accuracyVSAvoidlabor efficiency
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The system enables self-service by automatically performing the parameter conversion process without requiring skilled operators. The parameter conversion unit autonomously converts static model parameters to dynamic model parameters using predetermined conversion rules, eliminating the need for manual intervention and reducing labor requirements while maintaining conversion accuracy.

Inventive Principle:
Principle #25Self-service

3Measurement precision

If skilled operators are used to operate the plant on the dynamic simulator, then accurate simulation results can be obtained, but the system becomes less accessible and more expensive

Engineering Contradiction:
Improvesimulation result accuracyVSAvoidoperator skill requirement
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The system introduces an intermediary parameter conversion unit that automatically handles the complex parameter conversion process between static and dynamic models. This intermediary component bridges the gap between simple static model input and complex dynamic simulation requirements, eliminating the need for skilled operators to manually perform conversions while ensuring accurate parameter transformation.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Adaptability or versatility

If the scale of the plant is increased, then more comprehensive simulation coverage is achieved, but processing time increases

Engineering Contradiction:
Improvesimulation coverageVSAvoidsimulation processing time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

For large-scale plants with comprehensive simulation coverage requirements, the system performs preliminary parameter conversion for all plant components and subsystems before the actual dynamic simulation. The parameter conversion unit automatically processes all parameters across the entire plant scale, preparing conversion results in advance so that the subsequent dynamic simulation can efficiently process large-scale data without proportional time increases.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP3721303B1Simulation apparatus, system, method and program
Publication Date: 2023.02.15 YOKOGAWA ELECTRIC CORP
  • EP3721303B1 patent drawingFigure 1
  • EP3721303B1 patent drawingFigure 2
  • EP3721303B1 patent drawingFigure 3

AI summary

To improve a working efficiency in a dynamic simulation of a plant, an apparatus, a method, a program and a simulation system are provided, the apparatus including a result acquiring unit configured to acquire a simulation result of a static model indicating a steady state of a plant, and an initial state generating unit configured to generate an initial value of a state parameter of a dynamic model that is a model calculating a dynamic state of the plant based on the simulation result. The initial state generating unit may generate an initial value of a state parameter of at least one device in the dynamic model.