Open AccessTransition control of bifurcated frequencies in inductive power transfer systems through time delay perturbation
Author(s) -
Tang Chun-Sen,
Yue Sun,
Xin Dai,
ZhiHui Wang,
Yugang Su,
Hu Aiguo
Publication year - 2013
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.62.158401
Subject(s) - attractor , perturbation (astronomy) , maximum power transfer theorem , bifurcation , physics , control theory (sociology) , limit cycle , nonlinear system , electronic circuit , power (physics) , computer science , mathematical analysis , mathematics , control (management) , quantum mechanics , artificial intelligence
Frequency bifurcation is the most typical nonlinear phenomenon in inductive power transfer (IPT) systems. Two stable and one unstable resonant frequencies exist in a bifurcated IPT system while the unstable one lies between the two stable frequencies. To achieve the transition control of the bifurcated frequencies, this paper proposes an orbit shift method through a time delay perturbation, which is applied to the feedback signal. The phase trajectory can be shifted among the stable limit cycle attractors by adjusting the parameters of the time delay perturbation. The operation principle and implementation of the proposed method have been investigated in detail on an example IPT system with series tuned primary and secondary circuits. Both simulation and experimental results have verified the validation of the proposed method. The research results can provide useful theoretical reference for transition control of other similar multiple-attractor bifurcation behaviors.