Identification of a distributed parameters system for thermo-energetic applications

The distributed parameters systems, represent an active direction of practical and theoretical research, in the control engineering domain, due to the multiple applications in which they can be used [2-12, 30-34] and the rapid development of digital computers and electrical components. The present paper, presents a solution for the identification of a distributed parameters system, represented by a heat exchanger, using the open-loop identification procedures, based on the whitening of the prediction error [1, 13, 14, 15, 16]. In order to choose an optimal identification solution, an analysis of the plant is realized, using the analytical model [43, 44], which is further converted to a numerical form, to search models, for each known adaptation gain used in active control [1, 13, 14, 15, 16]. The choice of all adaptation gains, used in active control is realized in order to describe the heat-exchanger plant, as precisely as possible from the point of view of parameters variation with time.