Conference Paper

Recent advances in single-stage power factor correction

Sch. of Electr. Eng. & Comput. Sci., Central Florida Univ., Orlando, FL, USA
DOI: 10.1109/ICIT.2003.1290815 Conference: Industrial Technology, 2003 IEEE International Conference on, Volume: 2
Source: IEEE Xplore

ABSTRACT This paper presents an overview of various interesting power factor correction techniques for single-phase applications. The discussion includes commonly-used control strategies and various types of converter topologies. Included is a comparative study of these strategies, with the major advantages and disadvantages is highlighted. We will emphasize the single-stage topologies, its drawbacks and some promising solutions.

1 Follower
  • [Show abstract] [Hide abstract]
    ABSTRACT: A new single-stage power factor correction (SSPFC) converter is proposed for the adapter application, which is composed of a flyback converter and a front-end input current shaper. Low conduction losses are achieved with only two diode conduction drops in the primary side. The conversion efficiency is improved with a direct energy transfer path, which is provided by the feedback wingding. Equations and configurations are given to design the input current shaping (ICS) inductor and the magnetizing inductor of the transformer operating in discontinuous conduction mode (DCM) or in DCM/CCM boundary mode. The good performance of the converter is verified experimentally on a 90 W (19 V/4.74 A) SSPFC converter with universal line input.
  • [Show abstract] [Hide abstract]
    ABSTRACT: For most actual power applications, power-factor correction (PFC) converters usually operate in the stable continuous conduction mode (CCM), but input current distortion will occur as long as these converters operate in oscillatory condition. This distortion usually manifests itself as a local oscillation within one line cycle. Typically, a Zeta PFC converter under the general pulse-width modulated (GPWM) control possesses high performance, and requires simpler control circuitry with fewer external components. However, due to the large-signal nonlinearity of the GPWM controller, the dynamic analysis and modeling of the input current distortion in its PFC converters remains vacant. In this paper, a large-signal average SPICE model is derived to capture the time-domain waveforms of the input current and output voltage. A power-balance approach for the PFC converter operating in CCM is developed, which can predict the steady-state values of the converters by using the Fourier series expansion. Analysis of the distortion behavior is provided in terms of the proposed model and the unbalanced power transfer mode. Experimental results are presented to verify the proposed method.
    IEEE Transactions on Power Electronics 10/2012; 27(10):4212-4223. DOI:10.1109/TPEL.2012.2191161 · 5.73 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: In this work, a unity power factor rectifier based on coupled inductors is presented. Use of coupled inductors has obtained galvanic isolation between AC and DC sides. Suitable switching pattern based on PWM, makes possible unity power factor operation for this rectifier. The proposed rectifier has a symmetrical configuration which any halves acts on one half cycles. This configuration uses minimum number of power electronics elements, no conventional diode bridge, two switches (IGBT) and two blocking diodes. The proposed rectifier uses two simple controls and supplies a dc load on low voltage and high current. The simulations have been executed on PSCAD/EMTDC demonstrate its results and practicability.
    Electrical and Electronics Engineering (ELECO), 2011 7th International Conference on; 01/2011