Patent ID: 8135653
Filing Date: 2012-03-13
Classification: G05B

Abstract:
1. A control device for a plant, adapted to calculate a manipulation signal for controlling a plant using a measurement signal obtained by measuring an operation state of the plant, comprising: manipulation signal generation means for generating the manipulation signal to be transmitted to the plant; a model adapted to simulate a characteristic of the plant; learning means for generating an input signal of the model so that an output signal obtained by the model simulating the characteristic of the plant satisfies a predetermined target; learning signal generation means for calculating a learning signal in accordance with a learning result in the learning means; manipulation result evaluation means for calculating a first deviation as a deviation between a first measurement signal of the plant obtained as a result of application of a certain manipulation signal to the plant and a target value of the measurement signal, and a second deviation as a deviation between a second measurement signal of the plant obtained as a result of application of an updated manipulation signal to the plant and the target value; and correction signal generation means for generating, when the second deviation calculated by the manipulation result evaluation means is greater than the first deviation, a correction signal of the manipulation signal to be generated by the manipulation signal generation means, wherein the correction signal generation means is configured to calculate the correction signal based on a characteristic variable of a model characteristic extracted from the model, and the manipulation signal generation means is configured to calculate the manipulation signal for controlling the plant using at least the learning signal calculated by the learning signal generation means and the correction signal calculated by the correction signal generation means.