Multivariable fractional order PID control of the cryogenic process of mixing of two gaseous airs flows: D-decomposition method

Abstract

In the air production cryogenic liquid [1], the nowadays energy concern and operation requirement can rather exploit the advances in control systems theory to derive optimally designed closed-loop plants that can operate near their maximum capacity without the need for overestimated security margins. In recent years,considerable attention has been paid to control systems whose controllers are of a fractional order,[2], i.e. for real applications,to develop advanced methods for PIbeta Dalfa controller design and parameter tuning. Here, we suggest and obtain a new algorithms of multivariable fractional PID control by applying D-decomposition method in the producing of technical gases.