Open AccessPractical method for self‐adaptive voltage stabilising of high‐frequency wireless power transfer system
Author(s) -
Baiyi Liu,
Wei Chen,
Chenjian Han
Publication year - 2020
Publication title -
iet power electronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.637
H-Index - 77
eISSN - 1755-4543
pISSN - 1755-4535
DOI - 10.1049/iet-pel.2019.0931
Subject(s) - buck converter , correctness , buck–boost converter , computer science , voltage , control theory (sociology) , wireless power transfer , power (physics) , electromagnetic coil , wireless , electronic engineering , scheme (mathematics) , boost converter , engineering , electrical engineering , control (management) , mathematics , telecommunications , algorithm , physics , mathematical analysis , quantum mechanics , artificial intelligence
Voltage stabilisation is indispensable for every energy converter, including a wireless power transfer system. With the increase of frequency, the resistance of the receiving coil would turn out to be elevated obviously, which would lead traditional voltage regulators composed by a buck–boost converter to existing an unsteady operation region. A logical control scheme is proposed to overcome this obstacle, which could self‐adaptively stabilise the output voltage without the course of feedback. The proposed method could realise the function of voltage stabilising at a larger range of distance comparing to the traditional scheme of buck–boost converter with the same conditions. Two improved structures are built based on the proposed scheme to prevent buck–boost converter stepping into the unsteady region, and experiments are finally implemented to verify the effectiveness and correctness of the proposed method.