Expanding the parameter space approach to multi loop control with multi time delays

The calculation of all stabilizing controller parameters with the parameter space approach is a well-known method. Based on the determined stabilizing parameter space, there exist various analysis and fine-tuning tools for controller design. Unfortunately, the parameter space approach is currently only systematically developed and implemented for the PID controller tuning. This work presents an easy way to expand the syntheses step of the classical parameter space approach to time delay multi loop control loops. The paper illustrates a method for determining controller parameter space boundaries (RRB, IRB and CRB) analogously to the classical PID controller parameter space approach. A major advantage of the proposed method is the great transparency and simplicity.