Abstract
One of the fundamental drawbacks of the conventional LCL resonant inductive power transfer (IPT) system is the inverter highly distorted ac-current. As a consequence, the on-state and switching losses are increased. In order to overcome these disadvantages, this paper introduces an improved IPT system. The proposed improvement comprises notch filters, along with LCL filter in the inverter side of the IPT system. The performance of the conventional and the proposed IPT system is verified by simulation results. Heavy load and light load operation conditions are taken into account. In the end, a detailed power loss analysis of the inverter is presented for both IPT systems. Simulation results as well as power loss analysis verify that the proposed IPT system reduces the switching losses, the on-state losses, the RMS value and the total harmonic distortion of the converter current.
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