Novel high-power-factor ZCS-PWM preregulators

被引：41

作者：

Wakabayashi, FT ^{[1
]}

Bonato, MJ ^{[1
]}

Canesin, CA ^{[1
]}

机构：

[1] Univ Estadual Paulista, Dept Elect Engn, BR-15385000 Ilha Solteira, Brazil

来源：

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2001年 / 48卷 / 02期

关键词：

active power-factor correction; soft commutation; zero-current switching;

D O I：

10.1109/41.915411

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper introduces novel zero-current-switching (ZCS) pulsewidth-modulated (PWM) preregulators based on a new soft-commutation cell, suitable for insulated gate bipolar transistor applications. The active switches in these proposed rectifiers turn on in zero current and turn off in zero current-zero voltage. In addition, the diodes turn on in zero voltage and their reverse-recovery effects over the active switches are negligible. Moreover, based on the proposed cell, an entire family of de-to-de ZCS-PWM converters can be generated, providing conditions to obtain naturally isolated converters, for example, derived buck-boost, Sepic. and Zeta converters. The novel ac-to-dc ZCS-PWM boost and Zeta preregulators are presented in order to verify the operation of this soft-commutation cell, In order to minimize the harmonic contents of the input current, increasing the ac power factor, the average-current-mode control is used, obtaining preregulators with ac power factor near unity and high efficiency at wide load range. The principle of operation, theoretical analysis, design example, and experimental results from test units for the novel preregulators are presented. The new boost preregulator was designed to nominal values of 1.6 kW output power, 220 V-rms input voltage, 400 V-dc output voltage, and operating at 20 kHz. The measured efficiency and power factor of the new ZCS-PWM boost preregulator were 96.7% and 0,99, respectively, with an input current total harmonic distortion (THD) equal to 3.42% for an input voltage with THD equal to 1.61%, at rated load, The new ZCS-PWM Zeta preregulator was designed to voltage step-down operation, and the experimental results were obtained from a laboratory prototype rated at 500 W, 220 V-rm, input voltage, 110 V-dc output voltage, and operating at 50 kHz. The measured efficiency of the new ZCS-PWM Zeta preregulator is approximately 96.9% and the input power factor is 0.98, with an input current THD equal to 19.07% while the input voltage THD is equal to 1.96%, at rated load.

引用

页码：322 / 333

页数：12

共 18 条

[1]

AGUILAR C, 1995, IEEE POWER ELECTRON, P714, DOI 10.1109/PESC.1995.474897

[2]

CANESIN CA, 1991, APPL POWER ELECT CO, P430, DOI 10.1109/APEC.1991.146207

[3]

CANESIN CA, 1995, IEEE POWER ELECTRON, P1265, DOI 10.1109/PESC.1995.474976

[4] Novel zero-current-switching PWM converters [J].

Canesin, CA ;

Barbi, I .

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 1997, 44 (03) :372-381

[5]

Dixon L., 1988, P UN POW SUPPL DES S, P51

[6]

HIRACHI K, 1995, P IPEC, P444

[7]

HUA GC, 1992, IEEE POWER ELECTRON, P55, DOI 10.1109/PESC.1992.254691

[8]

HUA GC, 1993, PROCEEDINGS OF THE IECON 93 - INTERNATIONAL CONFERENCE ON INDUSTRIAL ELECTRONICS, CONTROL, AND INSTRUMENTATION, VOLS 1-3, P637, DOI 10.1109/IECON.1993.339005

[9]

HUDSON R, 1991, APPL POWER ELECT CO, P423, DOI 10.1109/APEC.1991.146206

[10]

NALBANT MK, 1990, P IEEE APEC, P543

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