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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2013.1
- 수록면
- 20 - 30 (11page)
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This paper presents a soft switching DC/DC converter for high voltage application. The interleaved pulse-width modulation (PWM) scheme is used to reduce the ripple current at the output capacitor and the size of output inductors. Two converter cells are connected in series at the high voltage side to reduce the voltage stresses of the active switches. Thus, the voltage stress of each switch is clamped at one half of the input voltage. On the other hand, the output sides of two converter cells are connected in parallel to achieve the load current sharing and reduce the current stress of output inductors. In each converter cell, a half-bridge converter with the asymmetrical PWM scheme is adopted to control power switches and to regulate the output voltage at a desired voltage level. Based on the resonant behavior by the output capacitance of power switches and the transformer leakage inductance, active switches can be turned on at zero voltage switching (ZVS) during the transition interval. Thus, the switching losses of power MOSFETs are reduced. The current doubler rectifier is used at the secondary side to partially cancel ripple current. Therefore, the root-mean-square (rms) current at output capacitor is reduced. The proposed converter can be applied for high input voltage applications such as a three-phase 380V utility system. Finally, experiments based on a laboratory prototype with 960W (24V/40A) rated power are provided to demonstrate the performance of proposed converter.
목차
Abstract
I. INTRODUCTION
II. CIRCUIT CONFIGURATION
III. OPERATION PRINCIPLE
IV. CIRCUIT CHARACTERISTICS
V. DESIGN PROCEDURE AND EXPERIMENTAL RESULTS
VI. CONCLUSION
ACKNOWLEDGMENT
REFERENCES
참고문헌 (19)
참고문헌 신청
F. Canales / 2002 / A zero-voltage and zero current-switching three level DC/DC converter / IEEE Trans. Power Electron 17(6):898~904
Wu Chen / 2008 / Zero-voltage-switching pwm hybrid full-bridge three-level converter with secondary-voltage clamping scheme / IEEE Trans. Ind. Electron 55(2):644~654
H. Ertl / 2002 / A novel multicell DC-AC converter for applications in renewable energy systems / IEEE Trans. Ind. Electron 49(5):1048~1057
H. Ertl / 2002 / Analysis of a multilevel multicell switch-mode power amplifier employing the flying-battery concept / IEEE Trans. Ind. Electron 49(4):816~823
S.-K. Han / 2003 / A voltage-balanced phase-shifted three-level DC/DC converter operating from high-input voltage / IEEE Power Electronics Letters 1(3):74~77
Wu Chen / 2008 / Zero-voltage-switching pwm hybrid full-bridge three-level converter with secondary-voltage clamping scheme / IEEE Trans. Ind. Electron 55(2):644~654
H. Ertl / 2002 / A novel multicell DC-AC converter for applications in renewable energy systems / IEEE Trans. Ind. Electron 49(5):1048~1057
H. Ertl / 2002 / Analysis of a multilevel multicell switch-mode power amplifier employing the flying-battery concept / IEEE Trans. Ind. Electron 49(4):816~823
S.-K. Han / 2003 / A voltage-balanced phase-shifted three-level DC/DC converter operating from high-input voltage / IEEE Power Electronics Letters 1(3):74~77
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