Title :
Low-distortion control of unity-power-factor converters in discontinuous conduction mode
Author :
Santi, Enrico ; Zhang, Zhe ; Cuk, Slobodan
Author_Institution :
Dept. of Electr. & Comput. Eng., South Carolina Univ., Columbia, SC, USA
Abstract :
A control scheme for unity power factor automatic current shapers operating in discontinuous conduction mode uses constant-frequency peak current mode programming instead of the conventional low-bandwidth voltage mode programming control. The main advantage is that an input current with very low harmonic distortion (THD<1.5%) can be obtained. A potential stability problem of the control is identified and an elegant solution suggested
Keywords :
harmonic distortion; harmonics suppression; power conversion harmonics; power factor correction; automatic current shapers; constant-frequency peak current mode programming; control scheme; discontinuous conduction mode; harmonic distortion reduction; stability problem; unity-power-factor converters; Automatic control; Automatic programming; Automatic voltage control; Inductors; Open loop systems; Reactive power; Shape control; Stability; Switches; Switching converters;
Conference_Titel :
Power Electronics Specialists Conference, 1999. PESC 99. 30th Annual IEEE
Conference_Location :
Charleston, SC
Print_ISBN :
0-7803-5421-4
DOI :
10.1109/PESC.1999.789019
