A synchronization method based on current orthogonal decomposition considering harmonic components for wireless power transfer system
Abstract In order to improve the wireless power transfer (WPT) system, an active rectifier is commonly used. Synchronization technology is critical for active rectifier. The traditional synchronization method based on zero‐crossing detection (ZCD) is unstable and not suitable for the case with lots...
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| Published in: | IET power electronics |
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| Main Authors: | , , , |
| Format: | Journal Article |
| Language: | English |
| Published: |
12-11-2024
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| Online Access: | Get full text |
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| Summary: | Abstract In order to improve the wireless power transfer (WPT) system, an active rectifier is commonly used. Synchronization technology is critical for active rectifier. The traditional synchronization method based on zero‐crossing detection (ZCD) is unstable and not suitable for the case with lots of harmonic component in the resonant current. Here, a new synchronization method with harmonic compensation is proposed for the WPT system without the ZCD of the resonant current. A mathematical model is built to analyse and compensate the impact caused by the harmonic on phase angle. Therefore, the proposed method can be applied to the high‐order resonant network like LCC compensated topology where the harmonic component is rich in the resonant current. For verifying the proposed synchronization method, a laboratory prototype is built. The experimental results prove that the system can operate stably with parameter perturbation and different load. The peak transfer efficiency of the system can achieve the 94.5%. |
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| ISSN: | 1755-4535 1755-4543 |
| DOI: | 10.1049/pel2.12702 |