Sliding mode control of the isolated bridgeless SEPIC high power factor rectifier interfacing an AC source with a LVDC distribution bus

Identificador:  imarina:5874180

Handle: https://hdl.handle.net/20.500.11797/imarina5874180

Autores:  Lopez-Santos, O; Cabeza-Cabeza, AJ; Garcia, G; Martinez-Salamero, L

Resumen:
© 2019 by the authors. This paper deals with the analysis and design of a sliding mode-based controller to obtain high power factor (HPF) in the bridgeless isolated version of the single ended primary inductor converter (SEPIC) operating as a single-phase rectifier. In the work reported here, the converter is used as a unidirectional isolated interface between an AC source and a low voltage direct current (LVDC) distribution bus. The sliding-mode control is used to ensure the tracking of a high quality current reference at the input side, which is obtained from a sine waveform generator synchronized with the grid. The feasibility of the proposal is validated using simulation and experimental results, both of them confirming a reliable operation and showing good static and dynamic performances.