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The fundamental harmonic analysis (FHA) approximation is a popular method to study the characteristics of bidirectional-inductive power-transfer (BIPT) system, employed by many researchers because of its simplicity. However, FHA overlook the effects of higher harmonic components and system resistances, which would deteriorate the sinusoidal degree of currents and the accuracy of transmission power model, especially in light load. This paper introduces a novel computer-aided method to build an enhanced-harmonics time-domain-model (EHM) to investigate steady-state characteristics of series-series (S–S) compensated BIPT system. The proposed EHM consider the factors of all higher harmonic components and system equivalent resistances, therefore, which can describe the electrical quantities such as currents and transmission power with high precision. Finally, an experimental prototype of S-S BIPT with 120 W is built to validate the effectiveness of our proposed EHM and comparisons are made between FHA and EHM.

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Computer-Aided Accurate Modeling for S-S Bidirectional-Inductive-Power-Transfer Converters

  • 会议论文

  • 发表日期：

    2025年

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  • Yuxiang Ren,
  • Hualei Zheng,
  • Xiquan Deng,
  • Fei Xu

摘要

The fundamental harmonic analysis (FHA) approximation is a popular method to study the characteristics of bidirectional-inductive power-transfer (BIPT) system, employed by many researchers because of its simplicity. However, FHA overlook the effects of higher harmonic components and system resistances, which would deteriorate the sinusoidal degree of currents and the accuracy of transmission power model, especially in light load. This paper introduces a novel computer-aided method to build an enhanced-harmonics time-domain-model (EHM) to investigate steady-state characteristics of series-series (S–S) compensated BIPT system. The proposed EHM consider the factors of all higher harmonic components and system equivalent resistances, therefore, which can describe the electrical quantities such as currents and transmission power with high precision. Finally, an experimental prototype of S-S BIPT with 120 W is built to validate the effectiveness of our proposed EHM and comparisons are made between FHA and EHM.