Causal output tracking in nonminimum phase boost DC/DC converter using sliding mode techniques

The problem of causal output tracking in the nonminimum phase boost DC/DC power converter is studied. The extended method of stable system center (ESSC) is used for generation of a bounded reference profile for the internal state on the basis of given in real time output state reference profile. Sliding mode controller (SMC) is proposed to track mentioned reference profiles, while converter parameters (load resistance and voltage source impedance), which affect the internal dynamics, are identified in real time, employing the idea of sliding mode parameter observer (SMPO). A numerical simulation illustrates the efficiency of the proposed control methodology in the presence of internal uncertainties and external disturbances.