A Pulse Energy Injection Inverter for the Switch-Mode Inductive Power Transfer System

Publication Type:
Journal Article
Citation:
IEEE Transactions on Circuits and Systems I: Regular Papers, 2018, 65 (7), pp. 2330 - 2340
Issue Date:
2018-07-01
Metrics:
Full metadata record
Files in This Item:
Filename Description Size
08120205.pdfPublished Version3.06 MB
Adobe PDF
© 2004-2012 IEEE. Considering the coupling relationships between transfer power and efficiency in continuous-mode inductive power transfer (IPT) systems, this paper presents a pulse energy injection inverter for IPT systems. With a new topology and parameters tuning, the pulse energy injection IPT system with the proposed inverter can work in switch-mode to decouple transfer power with efficiency. Moreover, the transfer power is only decided by the duty ratio of the semiconductor switch, rather than affected by the transmitting resonator, receiving (Rx) resonator, and load. In this way, the pulse energy injection IPT system holds an operating frequency much lower than the resonant frequency to reduce switch loss and improve transfer efficiency. Experiments verify that the IPT system with proposed inverter maintains a high level efficiency within the middle range and realizes nearly 80% supply to load transfer efficiency even in a weak coupling coefficient ( k=0.044 ). Finally, experimental analysis implies that the pulse energy injection inverter is suitable for full-range transmission, and high-Q IPT systems with uncertainty in Rx circuits or load.
Please use this identifier to cite or link to this item: