Institute of Electrical and Electronics Engineers (IEEE)

Analytical method for mutual inductance and optimum frequency calculation in a series-series compensated inductive power transfer system

Yongzheng Gao ¹

Zion Tsz Ho Tse ¹

Antonio Ginart ²

Hide authors affiliations Show authors affiliations: 2 affiliations

University of Georgia, College of Engineering, Athens, GA 30602 |

Kennesaw State University, Kennesaw, GA 30144 |

Publication type: Proceedings Article

Publication date: 2017-03-01

Institute of Electrical and Electronics Engineers (IEEE)

DOI: 10.1109/APEC.2017.7931233

Copy DOI

Abstract

The switching frequency of inductive power transfer (IPT) is sensitive to the air gap between the primary and secondary coils. The mutual inductance might change significantly for different air gaps, resulting in a shift for the switching frequency. The mutual inductance is usually acquired through experimental measurement, finite element analysis, or frequency tracking control. In this paper, Neumann's formula is simplified to compute the mutual inductance of two coils. A frequency-gap model is presented to offer a simple way to calculate the unity-gain frequency for a symmetrical series-series (SS) IPT. Finite element simulation and experiment were conducted to verify the model. The experimental results show that the unity-gain frequency can be output within an average computational time of 9.8ms, and the gain fluctuates from 0.95 to 1.05 when the air gap changes from 7.5cm to 25cm.

Found

Top-30

Journals

	1
Journal of Intelligent Material Systems and Structures	Journal of Intelligent Material Systems and Structures, 1, 25% Journal of Intelligent Material Systems and Structures 1 publication, 25%
IET Electrical Systems in Transportation	IET Electrical Systems in Transportation, 1, 25% IET Electrical Systems in Transportation 1 publication, 25%
	1

Publishers

	1 2
Institute of Electrical and Electronics Engineers (IEEE)	Institute of Electrical and Electronics Engineers (IEEE), 2, 50% Institute of Electrical and Electronics Engineers (IEEE) 2 publications, 50%
SAGE	SAGE, 1, 25% SAGE 1 publication, 25%
Institution of Engineering and Technology (IET)	Institution of Engineering and Technology (IET), 1, 25% Institution of Engineering and Technology (IET) 1 publication, 25%
	1 2

We do not take into account publications without a DOI.
Statistics recalculated weekly.

Are you a researcher?

Create a profile to get free access to personal recommendations for colleagues and new articles.

Metrics

Publisher

Institute of Electrical and Electronics Engineers (IEEE)