Dynamic Modeling and Simulation of Compressor Trains for an Air Separation Unit

This paper presents dynamic models of a compressor train for an air separation unit. The model is derived from physical equations. A block library and complete models are implemented in Matlab/Simulink. Model accuracy is validated by comparing simulation results with realistic data gained from an existing industrial plant. The goal of modeling is to obtain a better understanding of the dynamic behavior in different operating modes and to get a base for design of new control strategies, e.g. a supervisory controller for minimizing power consumption of the total compressor train.