期刊
IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS
卷 18, 期 1, 页码 365-374出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TII.2021.3076177
关键词
Repeaters; Transmitters; Receivers; Couplings; Topology; Reliability; Mathematical model; Bilateral-excitation (BE); constant load current; inductive power transfer (IPT); multiload
类别
资金
- Science and Technology Project of State Grid Corporation of China [52130421000S]
This article introduces the use of cascade repeaters in a multiload inductive power transfer (ML-IPT) system. The cascade repeaters serve as both power transmitters and load carriers, and high-order compensations are designed to achieve constant load currents. A bilateral-excitation (BE) scheme is proposed to improve output currents and system reliability.
The repeaters in cascade structure can be used to suppress the cross coupling between the nonadjacent repeaters in multiload inductive power transfer (ML-IPT) system. In this article, the cascade repeaters used in the ML-IPT system work both as power transmitters and load carriers. Based on the cascade scheme, the system models of two ML-IPT systems with single-excitation (SE) scheme for different load position are established and high-order compensations are designed to achieve constant load currents. Referring to the topologies of the two ML-IPT systems with SE scheme, a bilateral-excitation (BE) scheme is further proposed to improve output currents and system reliability, and the comparison of the conventional scheme and the proposed scheme is also presented. Finally, a prototype of ML-IPT system with the proposed BE scheme is built, where the maximum deviation of the output currents is less than 13% and the maximum power transfer efficiency reaches 89.2% for an eight-load case.
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