Title :
An investigation on optimal Current mode control for boost-type PWM rectifiers
Author :
Richards, C.G. ; Ehlers, P.J. ; Nicolae, D.V.
Author_Institution :
Dept. of Electr. Eng., Tshwane Univ. of Technol., Tshwane, South Africa
Abstract :
Static power converters produce harmonics due to the nature of the conversion process. This paper will investigate the effect on the power factor of a sinusoidal and Fryze current reference on a PWM boost type rectifier. It has been shown in previous papers that a Fryze current ref is best. This paper will develop a mathematical model, based on the single sided Fourier expansion. Using this mathematical model it will be shown that even though a high harmonic content could be present in a Fryze controlled PWM boost type rectifier, the power factor has been optimally improved.
Keywords :
Fourier transforms; PWM rectifiers; electric current control; optimal control; power conversion harmonics; power factor; Fryze current reference; boost-type PWM rectifier; harmonic content; optimal current mode control; power factor; single sided Fourier expansion; static power converter; Africa; Control systems; Mathematical model; Optimal control; Power system harmonics; Pulse width modulation; Rails; Reactive power; Rectifiers; Switches; Control Systems; harmonics; power electronics; power factor; reactive power;
Conference_Titel :
PowerTech, 2009 IEEE Bucharest
Conference_Location :
Bucharest
Print_ISBN :
978-1-4244-2234-0
Electronic_ISBN :
978-1-4244-2235-7
DOI :
10.1109/PTC.2009.5282229
