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- Song, KaiHarbin Institute of Technology (author)
An Impedance Decoupling-Based Tuning Scheme for Wireless Power Transfer System under Dual-Side Capacitance Drift
- Article/chapterEnglish2021
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- 2021
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- LIBRIS-ID:oai:research.chalmers.se:42bdeb58-fc5d-4470-8e25-b7a32f7231ea
- https://research.chalmers.se/publication/522820URI
- https://doi.org/10.1109/TPEL.2020.3043229DOI
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- Language:English
- Summary in:English
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- High performance of a wireless power transfer system is related to the resonance. However, the capacitance drift caused by temperature variation leads to detuning. In this article, a tuning scheme against dual-side capacitance drift using the impedance decoupling algorithm is investigated. First, the impact of the capacitance drift on transmission efficiency and output power are analyzed. Second, it is difficult to compensate for the dual-side capacitance drift quickly since the primary and secondary sides are coupled. Therefore, the impedance decoupling algorithm is introduced. The primary and secondary reactances are decoupled from the total impedance. The two independent reactances are only determined by the capacitance drift of the corresponding side. Then, by adjusting system frequency and the phase-shift angle of the semiactive rectifier, the reactances of both sides can be eliminated, respectively. Compared with the existing tuning methods focusing on total input impedance, the continuous adjustment on two sides is avoided, so the tuning time is significantly reduced. The experimental results prove that the proposed method can improve the system efficiency by 5%-40% and reduce the tuning time by 67% under different capacitance drift.
Subject headings and genre
- TEKNIK OCH TEKNOLOGIER Elektroteknik och elektronik Telekommunikation hsv//swe
- ENGINEERING AND TECHNOLOGY Electrical Engineering, Electronic Engineering, Information Engineering Telecommunications hsv//eng
- TEKNIK OCH TEKNOLOGIER Elektroteknik och elektronik Signalbehandling hsv//swe
- ENGINEERING AND TECHNOLOGY Electrical Engineering, Electronic Engineering, Information Engineering Signal Processing hsv//eng
- TEKNIK OCH TEKNOLOGIER Elektroteknik och elektronik Annan elektroteknik och elektronik hsv//swe
- ENGINEERING AND TECHNOLOGY Electrical Engineering, Electronic Engineering, Information Engineering Other Electrical Engineering, Electronic Engineering, Information Engineering hsv//eng
- Capacitance drift
- tuning
- detuning detection
- wireless power transfer (WPT)
- impedance decoupling
Added entries (persons, corporate bodies, meetings, titles ...)
- Yang, GuangHarbin Institute of Technology (author)
- Zhang, Hang (author)
- Huang, Xiaoliang,1985Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)huangxi (author)
- Jiang, JinhaiHarbin Institute of Technology (author)
- Lan, YuHarbin Institute of Technology (author)
- Huang, Xiaohua (author)
- Li, Jin (author)
- Zhu, ChunboHarbin Institute of Technology (author)
- Harbin Institute of TechnologyChalmers tekniska högskola (creator_code:org_t)
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- In:IEEE Transactions on Power Electronics36:7, s. 7526-75360885-89931941-0107
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