Extended Nonideal Passivity Based Controller for DC-DC Boost Converter

This paper presents an extended method to design passivity-based controllers in the case of nonideal (ENPBC) DCDC boost converters with residual terms, which manages to ensure the closed-loop stability of the nonlinear system along an input trajectory given by a path planning. The ENPBC operates by keeping the reference inductor current at a prescribed value regardless of the output resistance and input voltage, if the bounds of the command signal allow this. Additionally, the path planning was implemented as a proportional-integrator (PI) controller in order to have a dynamical reference for ENPBC, which guarantees that the capacitor voltage can be controlled. All results have been obtained by simulation on a hybrid model in Simscape.