Next Article in Journal
Probabilistic Modeling of Electric Vehicle Charging Pattern Associated with Residential Load for Voltage Unbalance Assessment
Next Article in Special Issue
Modeling and Analysis of the Common Mode Voltage in a Cascaded H-Bridge Electronic Power Transformer
Previous Article in Journal
Heat Transfer in a Drilling Fluid with Geothermal Applications
Previous Article in Special Issue
Safety Analysis of Grounding Resistance with Depth of Water for Floating PVs
Article Menu
Issue 9 (September) cover image

Export Article

Open AccessArticle
Energies 2017, 10(9), 1346; doi:10.3390/en10091346

A Design Method for Making an LCC Compensation Two-Coil Wireless Power Transfer System More Energy Efficient Than an SS Counterpart

1
School of Electrical and Power Engineering, China University of Mining and Technology, Xuzhou 221008, China
2
Electrical Energy Management Research Group, University of Bristol, Bristol BS8 1TH, UK
*
Author to whom correspondence should be addressed.
Received: 18 July 2017 / Revised: 19 August 2017 / Accepted: 1 September 2017 / Published: 6 September 2017

Abstract

A new design approach is presented in this paper to show that under certain conditions, in a two-coil wireless power transfer system, the double-sided inductor-capacitor-capacitor (LCC) compensated wireless power transfer (LCC-WPT) system can be more energy efficient than the series-series (SS) compensated wireless power transfer (SS-WPT) system for the same load power, with special attention being paid to the effect that the parasitic coil and capacitor resistances have on the system efficiency. To make a fair comparison between the SS and LCC WPT systems, the direct current (DC) link voltage was adjusted to set equal load power for the two systems whilst using identical transmit and receive coils, coil-to-coil distance and load resistance. The system performance in terms of the system efficiency, the voltage stresses on the components, and the losses in the power devices were analysed for a practical system, comparing the LCC-WPT system and the SS-WPT system with respect to the load resistance. The effect of coil misalignment on the transferred power and efficiency for the two systems was compared. The theoretical proof and the conditions for meeting the objective are derived and practically verified in a two-coil WPT practical prototype, showing good agreement between analysis and experiments. View Full-Text
Keywords: two-coil wireless power transfer system; SS compensation topology; LCC compensation topology; wireless power transfer performance two-coil wireless power transfer system; SS compensation topology; LCC compensation topology; wireless power transfer performance
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Liu, X.; Clare, L.; Yuan, X.; Wang, C.; Liu, J. A Design Method for Making an LCC Compensation Two-Coil Wireless Power Transfer System More Energy Efficient Than an SS Counterpart. Energies 2017, 10, 1346.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top