Journal article
An Improved Design Methodology of the Double-Sided LC-Compensated CPT System Considering the Inductance Detuning
IEEE transactions on power electronics, v 34(11), pp 11396-11406
Nov 2019
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
This paper proposes an improved design methodology of the double-sided LC -compensated capacitive power transfer (CPT) system considering the inductance detuning. Compared to the perfect-resonant scenario, this paper shows that the inductance detuning has the benefit to achieve the soft-switching condition for the CPT system, and the output current and internal voltage stresses can also be maintained within the desired range. The contributions of this paper are summarized in three parts. First, it analyzes the impacts of the inductance variations on the system frequency property, including the input current, output current, and internal capacitor voltage stresses. Second, it proposes three principles to detune the inductances as the methodology to design a CPT system. Third, a prototype is implemented, which achieves 368.5 W power transfer across a 400 mm × 400 mm × 4 mm glass layer with 91.8% dc-dc efficiency. Experimental results validate that the proposed design principles are satisfied, showing that the output current is within the desired range, the input soft-switching condition is achieved, and the internal voltage stresses are within the safety limit. Moreover, the efficiency and frequency properties are also validated by the experimental results, showing a wide power range of the high-efficiency operation (higher than 90%) and a wide frequency bandwidth of the soft-switching operation (from 0.96 to 1.12 MHz).
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Details
- Title
- An Improved Design Methodology of the Double-Sided LC-Compensated CPT System Considering the Inductance Detuning
- Creators
- Hua Zhang - Drexel UniversityFei Lu - Department of Electrical and Computer Engineering, Drexel University, Philadelphia, PA, USA
- Publication Details
- IEEE transactions on power electronics, v 34(11), pp 11396-11406
- Publisher
- IEEE
- Grant note
- Drexel University (10.13039/100008211)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Electrical and Computer Engineering
- Web of Science ID
- WOS:000485746400089
- Scopus ID
- 2-s2.0-85072102159
- Other Identifier
- 991019168653904721
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- Web of Science research areas
- Engineering, Electrical & Electronic