Method for controlling application of plant

Abstract

Abstract PURPOSE:To reduce an error between a stochastic irregular signal and a plant output (a compensating output) and to attain on-line operation by estimating a plant transmission matrix and a disturbance matrix from the MEM spectrum of the stochastic irregular signal and determining optimum gain. CONSTITUTION:A stochastic irregular variation signal is measured at a pre scribed period, the MEM spectrum of the signal is calculated by maximum entropy (MEM) method every measurement and the data of the MEM spectrum at a prescribed frequency level are optionally extracted from the measurement points of respective MEM spectra to find out the approximate function of the MEM spectra by non-linear parameter estimating method. A delay consisting of the approximate function is converted into a molding filter, its gain and time constant are found out and the elements of a transmission matrix A and a disturbance matrix S are recombined from the molding filter to calculate the maximum gain by a maximum gain calculating part at a prescribed period, determine the maximum gain following the characteristics of a stochastic irregu lar signal and switch the gain of a plant 1 to be determined optimum gain. Thus, the application control of the plant 1 can be executed by means of on-line operation.

Inventors

• 👤 Hiroyuki Iki
• 👤 浩幸 壹岐
• 👤 Katsuhisa Kametani
• 👤 亀谷　勝久

Bibliographic Details