EXTENSIONS TO THE DESIGN OF SAMPLED INTEGRATING REGULATORS

The stability properties and design rules for a class of robust integrating regulators are considered. Passivity arguments are employed to define bounds on the parameters of an extended PID regulator and to establish the robustness of the closed-loop stability properties in the presence of sector-bound nonlinear elements in the feedback loop. This approach allows linear and nonlinear single-input/single-output and multi-input/multi-output systems to be considered in the same framework.