Ramon Costa-Castelló

TL;DR: This work studies the dynamics of a single-phase full-bridge unity power factor boost AC-DC converter and develops a linear cascade resonant controller in order to meet two control objectives: to regulate the mean value of its DC output voltage and to drain from the network a sinusoidal current in phase with the sinusoid source voltage.

TL;DR: In this paper, the authors proposed and designed a controller based on combined feedforward and feedback actions, the last using repetitive control, to obtain a good closed-loop performance (power factor close to 1 and, load current harmonics and reactive power compensation) in spite of the possible frequency variations that may occur in the electrical network.

TL;DR: In this article, an active disturbance rejection control scheme for active filters is presented, where the controller is based on a linear disturbance observer combined with a disturbance rejection scheme, and parameter tuning is based based on combined pole placement and an optimal estimation based on Kalman-Bucy filter.

TL;DR: A model-based high-order sliding mode observer (HOSM) with chattering-free capabilities is deployed to estimate unmeasurable variables in a proton exchange membrane (PEM) fuel cell and the temperature and the internal liquid water fraction are estimated.

TL;DR: This article proposes an alternative structure of the repetitive controller which also works with a fixed frequency, but is tuned taking into account the uncertainty in the resonance mode frequencies in order to achieve fast, well-damped system responses.