Adaptive Observer Design for non-linear Cascade Boost Converter

A nonlinear adaptive observer for a class of nonlinear systems is introduced. The convergence of the proposed observer is studied. The designed observer is applied for self-sensing control to estimate state-variables and the load variations of the DC-DC Boost Cascade. Performance of the proposed observer algorithm is with simulations through Matlab/Simulink. The influence of the observer parameters are discussed to prove the robustness of the proposed observer.