Title: A novel control scheme to improve the spectral quality of a single-phase bridgeless boost rectifier
Authors: V. Rajini
Addresses: Department of Electrical and Electronics Engineering, SSN College of Engineering, Kalavakkam, Tamil Nadu, India
Abstract: A new control scheme for single-phase bridgeless boost rectifier is proposed. The focus of this work is to achieve unity power factor for single-phase bridgeless boost rectifier by employing a model-based input resistive controller where the amplitude and frequency of the input voltage are not known. The single-phase bridgeless boost rectifier is modelled using averaged method and a feedback control scheme is designed to get the input resistive behaviour. Simulation has been done using MATLAB. Within the range of duty cycle from 20 to 75%, the lower THD and higher power factor are achieved. The proposed rectifier topology with resistive input controller is verified experimentally and the results are presented.
Keywords: bridgeless rectifiers; power factor correction; total harmonic distortion; THD; spectral quality; unity power factor; bridgeless boost rectifiers; model-based control; controller design; modelling; feedback control; input resistive behaviour; simulation.
International Journal of Power Electronics, 2016 Vol.8 No.1, pp.52 - 67
Accepted: 26 Oct 2016
Published online: 25 Jan 2017 *