Journal article
Compact Z-Impedance Compensation for Inductive Power Transfer and Its Capacitance Tuning Method
IEEE transactions on industrial electronics (1982), pp 1-1
31 May 2022
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
This paper proposes a Z-impedance compensation for inductive power transfer (IPT). There are three contributions. First, a Z impedance-S compensated IPT topology is developed to achieve constant transmitting current, load-independent constant-voltage (CV) output, and zero-phase angle (ZPA) property, which is an alternative to the conventional LCC-S topology. Second, compared to an LCC circuit, the Z-impedance compensation burdens much smaller current/voltage stress and shows lower sensitivity to compensation capacitance drift, contributing to high-power applications. Third, a capacitance tuning method is proposed to regulate power, which improves the misalignment tolerance. Two 5 kW Z impedance-S and LCC-S IPT prototypes are implemented. Experiments show that the Z impedance-S IPT system achieves comparable power and efficiency with an LCC-S IPT system with smaller current/voltage stress and lower sensitivity. The proposed capacitance tuning method is effective to maintain a rated 3 kW output within a horizontal misalignment of [0 100mm] with zero-voltage-switching (ZVS) and ZPA operation. Meantime, A peak dc-dc efficiency of 96.88% is realized in the Z impedance-S IPT system at 3.47 kW.
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Details
- Title
- Compact Z-Impedance Compensation for Inductive Power Transfer and Its Capacitance Tuning Method
- Creators
- Yao Wang - Department of Electrical and Computer Engineering, Drexel University, Philadelphia, PA 19104, USAShuyan Zhao - Department of Electrical and Computer Engineering, Drexel University, Philadelphia, PA 19104, USAHua Zhang - Drexel UniversityChong Zhu - School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaYing Mei - College of Electrical Engineering, Zhejiang University, Hangzhou, 310027, ChinaNingfei Jiao - Department of Electrical Engineering, Northwestern Polytechnical University, Xi'an, 710072, ChinaFei Lu - Drexel University
- Publication Details
- IEEE transactions on industrial electronics (1982), pp 1-1
- Publisher
- IEEE
- Grant note
- DE-AR0001114 / Advanced Research Projects Agency - Energy (10.13039/100006133)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Electrical and Computer Engineering
- Web of Science ID
- WOS:000928140500036
- Scopus ID
- 2-s2.0-85131724503
- Other Identifier
- 991019173581904721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Automation & Control Systems
- Engineering, Electrical & Electronic
- Instruments & Instrumentation