Open AccessMagnetic coupling coefficient determination of IPT systems under operating conditions
Author(s) -
Ali Abdolkhani,
Aiguo Patrick Hu
Publication year - 2014
Publication title -
wireless power transfer
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.275
H-Index - 11
ISSN - 2052-8418
DOI - 10.1017/wpt.2014.10
Subject(s) - coupling coefficient of resonators , coupling (piping) , inductive coupling , maximum power transfer theorem , power (physics) , voltage , control theory (sociology) , controller (irrigation) , computer science , electronic engineering , physics , engineering , electrical engineering , mechanical engineering , control (management) , agronomy , resonator , quantum mechanics , artificial intelligence , biology
This study presents a method of determining the magnetic coupling coefficient of inductive power transfer (IPT) systems under real-time operating conditions by measuring the open-circuit voltage and short-circuit current of coupled coils. Besides the theoretical analysis, the proposed method is verified by finite elements simulation and practical evaluation. Both simulation and experimental results have demonstrated that the proposed method can determine the coupling coefficient of both closely and loosely coupled coils with high-quality factors. The method can be used for online monitoring of the coupling condition and real-time power flow controller design of IPT systems.