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Content Provider | IET Digital Library |
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Author | Lin, Bor Ren Cheng, Po Jen |
Abstract | An interleaved series resonant converter with fixed frequency pulse-width modulation (PWM) is presented to achieve load current sharing, ripple current cancelation, zero-voltage switching (ZVS) for power switches and zero-current switching (ZCS) for rectifier diodes. Two three-level DC converters with clamped diodes and flying capacitor are adopted to share load current. The voltage stress of power switches is clamped at one-half of DC bus voltage. The interleaved PWM scheme is used to control two converters in order to reduce the output current ripple and size of output capacitor. The series resonant tank in three-level PWM converter is adopted to realise ZVS turn-on for all power switches andZCS for rectifier diodes. Thus, the switching losses of active switches are reduced and the reverse recovery losses of rectifier diodes are eliminated. The fixed frequency PWM operation is adopted to regulate output voltage, so that the drawback of a wide range of switching frequency in the conventional series resonant converters is overcome. Finally, experiments based on a scale-down prototype are provided to verify the effectiveness of the proposed converter. |
Starting Page | 374 |
Ending Page | 382 |
Page Count | 9 |
ISSN | 17554535 |
Volume Number | 6 |
e-ISSN | 17554543 |
Issue Number | Issue 2, Feb (2013) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-pel/6/2 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2012.0617 |
Journal | IET Power Electronics |
Access Restriction | Open |
Rights Holder | © The Institution of Engineering and Technology |
Subject Keyword | AC-DC Power Converter Active Switches Capacitor Clamped Diodes Control of Electric Power System DC Bus Voltage Diode Duty Cycle Control Fixed Frequency Pulse-width Modulation Fixed Frequency PWM Flying Capacitor Interleaved PWM Scheme Interleaved Series Resonant Converter Interleaved Zero-voltage Switching Resonant Converter Load Current Sharing Loss Output Capacitor Size Output Current Ripple Reduction Power Converter Power Supplies to Apparatus Power Switch PWM Rectifier Rectifier Diode Ripple Current Cancelation Scale-down Prototype Series Resonant Tank Switched Mode Converter Switching Circuit Switching Converter Switching Loss Three-level DC Converter Three-level PWM Converter Voltage Stress ZCS Zero Current Switching Zero Current Switching Resonant Converter Zero Voltage Switching ZVS |
Content Type | Text |
Resource Type | Article |
Subject | Electrical and Electronic Engineering |
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