Analysis and design of a three phase active shunt power filter based on the non-linear passivity approach

This paper presents a three-phase shunt active power filter controlled by the nonlinear passivity technique. The dissipative features in which the passivity technique is based on allow the development of a nonlinear controller having a good dynamical response, robustness and stability. The control circuit is based on a DSP. Analysis and modeling are presented as well as simulation and experimental results, which verify the satisfactory of the proposed approach.