Adaptive nonlinear control of multicellular single phase inverter

We are considering the problem of controlling a single-phase Multicellular inverter with LC output filter. The control objectives are: (i) generating a sinusoidal voltage with amplitude and industrial frequency fixed by the reference signal, (ii) ensuring a good convergence of the voltages across the flying capacitors. The controller is designed using the backstepping approach in its adaptive versions and the Lyapunov stability argument. Unlike the existing formulations, the approach also gives additional analysis based on averaging theory. The adaptive version is designed and presented to produce quite interesting tracking and robustness performances with respect to load variations as it is shown by simulation result in Matlab/Simulink.