Analysis and Design of Misalignment Tolerance PS/SP Compensation Topologies for an IPT System
Kang Wu, Yijie Wang, Mingchen Gong, Wei Lu, Jianwei Mai, Dianguo Xu · IEEE Transactions on Industry Applications · 2024
The compensation topology with a misalignment tolerance capability is highly important for an inductive power transfer system. This paper proposes a novel compensation method for the parallel-series/series-parallel (PS/SP) compensation topology. The proposed PS/SP compensation topology has four forms in light of different combinations of the compensation components and has the characteristics of load-independent constant voltage output, good capability of misalignment tolerance, flexibly adjustable output voltage gain and nearly zero phase angle (ZPA). Prototypes with the PS/SP compensation topology and the LCC/S compensation topology are fabricated to make a comparison and verify the theoretical analysis of this paper. The experimental results show that under the same experimental conditions, the output voltage volatility coefficient using the PS/SP compensation topology is only 2.80%, while the output voltage volatility coefficient using the LCC/S compensation topology is 6.62%, which proves that the PS/SP compensation topology has a good capability of misalignment tolerance.