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| Main Author: | |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2411.06589 |
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| _version_ | 1866910695058046976 |
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| author | Hwang, Inhwi |
| author_facet | Hwang, Inhwi |
| contents | This paper proposes a method to achieve zero voltage switching (ZVS) across the full duty cycle range in hybrid flying capacitor multilevel (FCML) converters, eliminating the need for dynamic level changing and active re-balancing. Utilizing skipped adjacency pulse width modulation (SAPWM), this approach avoids the nearest pole voltage level, thereby increasing volt-seconds within specific duty cycle range. The method uses a modified PWM scheme, which preserves effective pole voltage by changing duty reference and employing digital logic processing. Simulation results verify the proposed method achieving full-range ZVS. This SAPWM technique is compatible with hybrid FCML converters with various levels, offering enhanced efficiency and reduced switching losses. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_06589 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Skipped Adjacency Pulse Width Modulation: Zero Voltage Switching over Full Duty Cycle Range for Hybrid Flying Capacitor Multi-Level Converters without Dynamic Level Changing Hwang, Inhwi Systems and Control This paper proposes a method to achieve zero voltage switching (ZVS) across the full duty cycle range in hybrid flying capacitor multilevel (FCML) converters, eliminating the need for dynamic level changing and active re-balancing. Utilizing skipped adjacency pulse width modulation (SAPWM), this approach avoids the nearest pole voltage level, thereby increasing volt-seconds within specific duty cycle range. The method uses a modified PWM scheme, which preserves effective pole voltage by changing duty reference and employing digital logic processing. Simulation results verify the proposed method achieving full-range ZVS. This SAPWM technique is compatible with hybrid FCML converters with various levels, offering enhanced efficiency and reduced switching losses. |
| title | Skipped Adjacency Pulse Width Modulation: Zero Voltage Switching over Full Duty Cycle Range for Hybrid Flying Capacitor Multi-Level Converters without Dynamic Level Changing |
| topic | Systems and Control |
| url | https://arxiv.org/abs/2411.06589 |