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Content Provider | IET Digital Library |
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Author | Lin, Bor Ren Hou, Bo Ren |
Abstract | This study presents an interleaved pulse-width modulation (PWM) converter to achieve the functions of zero-voltage switching (ZVS) for all power switches and zero-current switching (ZCS) for rectifier diodes at the secondary side. A three-level hybrid DC converter is adopted to reduce the voltage stress of power switched at one-half of the DC bus voltage and automatically balance the two input capacitor voltages. Therefore MOSFETs with 600 V voltage stress can be used at the second stage DC/DC converter after the three-phase power factor correction circuit. The fixed frequency PWM is used in three-level PWM resonant converter to regulate output voltage. Since the selected switching frequency is less than the series resonant frequency, MOSFETs can be turned on at ZVS and rectifier diodes can be turned off at ZCS. Thus, the switching losses of power switches are reduced and the reverse recovery losses of rectifier diodes are eliminated. Interleaved PWM scheme is adopted to share load current and further cancel current ripple at output capacitor side. Thus, output capacitance can be reduced. Finally, experiments are provided to verify the effectiveness of the proposed converter. |
Starting Page | 148 |
Ending Page | 156 |
Page Count | 9 |
ISSN | 17554535 |
Volume Number | 7 |
e-ISSN | 17554543 |
Issue Number | Issue 1, Jan (2014) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-pel/7/1 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2013.0134 |
Journal | IET Power Electronics |
Access Restriction | Open |
Rights Holder | © The Institution of Engineering and Technology |
Subject Keyword | Current Ripple DC Bus Voltage DC-DC Power Converter Fixed Frequency PWM Insulated Gate Field Effect Transistors Interleaved Pulse-width Modulation Resonant Converter Load Current MOSFET Other Power Apparatus And Electric Machine Output Capacitor Side Power Capacitor Power Converter Power Factor Correction Power Supplies to Apparatus Power Switch PWM Converter PWM Power Converter Rectifier Rectifier Diode Resonant Power Converter Reverse Recovery Loss Second Stage DC-DC Converter Switching Loss Three-level Hybrid DC Converter Three-phase Power Factor Correction Circuit Voltage 600 V ZCS Zero Current Switching Zero Voltage Switching ZVS |
Content Type | Text |
Resource Type | Article |
Subject | Electrical and Electronic Engineering |
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