Controlled system model generating method and apparatus
First Claim
1. A controlled system model generating apparatus comprising:
- a real controlled variable storage unit which stores time-series data of a real controlled variable as a control result on an actual controlled system;
a model storage unit which stores, in advance, a mathematical model of a controlled system having at least one parameter;
a controller storage unit which stores, in advance, a controller algorithm which virtually generates a controller;
a simulation computation unit which executes a simulation of simulating a control response concerning the control system comprising a controlled system represented by a mathematical model stored in said model storage unit and a controller represented by the controller algorithm stored in said controller storage unit;
an evaluation function computation unit which compares a real controlled variable stored in said real controlled variable storage unit with a model controlled variable which is a controlled variable calculated by a simulation executed by said simulation computation unit and computes an evaluation function value representing a proximity between the real controlled variable and the model controlled variable; and
a controlled system model parameter search computation unit which causes said simulation computation unit to execute a simulation while sequentially changing a value of a controlled system model parameter set for a mathematical model, and determines, as a model parameter search result, a value of a controlled system model parameter with which an evaluation function value computed by said evaluation function computation unit becomes an optimal value.
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Abstract
A controlled system model generating apparatus includes a real controlled variable storage unit which stores time-series data of a real controlled variable, a model storage unit which stores a mathematical model of a controlled system, a controller storage unit which stores a controller algorithm, a simulation computation unit which executes a simulation of simulating a control response concerning a control system, an evaluation function computation unit which compares a real controlled variable with a model controlled variable and computes an evaluation function value representing a proximity between the real controlled variable and the model controlled variable, and a controlled system model parameter search computation unit which causes the simulation computation unit to execute a simulation while sequentially changing a value of a controlled system model parameter set for a mathematical model, and determines a value of a controlled system model parameter with which an evaluation function value becomes an optimal value. A controlled system model generating method is also disclosed.
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Citations
6 Claims
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1. A controlled system model generating apparatus comprising:
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a real controlled variable storage unit which stores time-series data of a real controlled variable as a control result on an actual controlled system;
a model storage unit which stores, in advance, a mathematical model of a controlled system having at least one parameter;
a controller storage unit which stores, in advance, a controller algorithm which virtually generates a controller;
a simulation computation unit which executes a simulation of simulating a control response concerning the control system comprising a controlled system represented by a mathematical model stored in said model storage unit and a controller represented by the controller algorithm stored in said controller storage unit;
an evaluation function computation unit which compares a real controlled variable stored in said real controlled variable storage unit with a model controlled variable which is a controlled variable calculated by a simulation executed by said simulation computation unit and computes an evaluation function value representing a proximity between the real controlled variable and the model controlled variable; and
a controlled system model parameter search computation unit which causes said simulation computation unit to execute a simulation while sequentially changing a value of a controlled system model parameter set for a mathematical model, and determines, as a model parameter search result, a value of a controlled system model parameter with which an evaluation function value computed by said evaluation function computation unit becomes an optimal value. - View Dependent Claims (2, 3)
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4. A controlled system model generating method comprising:
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the step of executing a simulation of simulating a control response concerning a control system comprising a controlled system represented by a mathematical model stored in advance and a controller represented by a controller algorithm stored in advance;
the step of comparing a real controlled variable as a control result on an actual controlled system and a model controlled variable as a controlled variable calculated by a simulation, and computing an evaluation function value representing a proximity between the real controlled variable and the model controlled variable; and
the step of executing a simulation while sequentially changing a value of a controlled system model parameter set for the mathematical model, an determining, as a model parameter search result, a value of a controlled system model parameter with which an evaluation function value becomes an optimal value. - View Dependent Claims (5, 6)
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Specification