A new single-phase ZCS-PWM boost rectifier with high power factor and low conduction losses

This paper proposes a new single-phase high-power-factor rectifier, which features regulation by conventional pulsewidth modulation (PWM), soft commutation, and instantaneous average line current control. A new zero-current switching PWM (ZCS-PWM) auxiliary circuit is configured in the presented ZCS-PWM rectifier to perform ZCS in the active switches and zero-voltage switching (ZVS) in the passive switches. Furthermore, soft commutation of the main switch is achieved without additional current stress by the presented ZCS-PWM auxiliary circuit. A significant reduction in the conduction losses is achieved because of the following reasons: 1) the circulating current for the soft switching flows only through the auxiliary circuit; 2) a minimum number of switching devices are involved in the circulating current path; and 3) the proposed rectifier uses a single converter instead of the conventional configuration composed of a four-diode front-end rectifier followed by a boost converter. Seven transition states for describing the behavior of the ZCS-PWM rectifier in one switching period are described. The PWM-switch model is used to predict the system performance. A prototype rated at 1 kW, operating at 60 kHz, with an input alternating current voltage of 220 V/sub rms/ and an output voltage of 400 V/sub dc/, has been implemented in laboratory. An efficiency of 98.3% and a power factor over 0.99 have been measured. Analysis, design, and the control circuitry are also presented in this paper.

[1]  G. Joos,et al.  A novel active current waveshaping technique for solid state input power factor conditioners , 1989, 15th Annual Conference of IEEE Industrial Electronics Society.

[2]  Prasad Enjeti,et al.  A high performance single phase AC to DC rectifier with input power factor correction , 1993, Proceedings Eighth Annual Applied Power Electronics Conference and Exposition,.

[3]  C. A. Canesin,et al.  A new family of zero-current-switching PWM converters and a novel HPF-ZCS-PWM boost rectifier , 1999, APEC '99. Fourteenth Annual Applied Power Electronics Conference and Exposition. 1999 Conference Proceedings (Cat. No.99CH36285).

[4]  I. Barbi,et al.  A new ZCS quasi-resonant unity power factor rectifier with reduced conduction losses , 1995, Proceedings of PESC '95 - Power Electronics Specialist Conference.

[5]  G. Joos,et al.  Programmable input power factor correction methods for single phase diode rectifier circuits , 1990, Fifth Annual Proceedings on Applied Power Electronics Conference and Exposition.

[6]  J. B. Klaassens,et al.  PWM-switch modeling of DC-DC converters , 1995 .

[7]  I. Barbi,et al.  A new ZVS-PWM active-clamping high power factor rectifier: analysis, design, and experimentation , 1998, APEC '98 Thirteenth Annual Applied Power Electronics Conference and Exposition.

[8]  Dehong Xu,et al.  A novel single-phase active-clamped PFC converter , 1997, Proceedings of APEC 97 - Applied Power Electronics Conference.

[9]  A. Prasad,et al.  An active power factor correction technique for three-phase diode rectifiers , 1989, 20th Annual IEEE Power Electronics Specialists Conference.

[10]  L.C. de Freitas,et al.  A new ZCS-ZVS-PWM boost converter with unity power factor operation , 1994, Proceedings of 1994 IEEE Applied Power Electronics Conference and Exposition - ASPEC'94.

[11]  D. Boroyevich,et al.  Soft-switched single-switch three-phase rectifier with power factor correction , 1994, Proceedings of 1994 IEEE Applied Power Electronics Conference and Exposition - ASPEC'94.

[12]  Ivo Barbi,et al.  A new ZVS-PWM unity power factor rectifier with reduced conduction losses , 1994 .

[13]  I. Barbi,et al.  A novel single-phase ZCS-PWM high power factor boost rectifier , 1997, PESC97. Record 28th Annual IEEE Power Electronics Specialists Conference. Formerly Power Conditioning Specialists Conference 1970-71. Power Processing and Electronic Specialists Conference 1972.