Minimizing Current in Inductive Power Transfer Systems With an Asymmetrical Factor for Misalignment Tolerance and Wide Load Range

Yao, Zirui; Zhang, Junjie; Luo, Shiying; Luo, Zhongbao; Zheng, Shaoting; Li, Guanxi; Zhang, Zhuhaobo; Krein, P.T.

doi:10.1109/tpel.2021.3061920

Cited by 11 publications

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“…Otherwise, tuning those variables is necessary for each k to achieve optimum performance. Similar to the power variation coefficient in [17], a variation rate is introduced to quantify and qualify how big variations different control variables have to make in order to achieve optimum system performances across the entire range of k, given in (13).…”

Section: ) the Variation Ratementioning

confidence: 99%

“…The operation of an SSWPT system can be straightforwardly optimized by frequency or phase shift control [13] [14] as frequency, phase shift, and power form a cause-and-effect relationship in the system. One of the widely researched optimum frequencies is the Zero Phase Angle Frequency (ZPAF) of the input impedance, [15] [16], since it can reduce the reactive input power of the DWPT system, leading to nearly maximum power with high efficiency [17]. Due to the frequency bifurcation phenomenon, more than one ZPAF exists.…”

Section: Introductionmentioning

confidence: 99%

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Frequency Domain Analysis of a Dynamic Wireless Transfer System for Electric Vehicles

Liang,

Drissi,

Pasquier

2024

IEEE Access

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Dynamic Wireless Power Transfer (DWPT) is a revolutionary technology for developing an autonomic electromobility transport system. A robust control method is essential for maximum power transfer with high efficiencies and the safe operation of the DWPT systems. This paper developed a frequency domain model of a series-series wireless power transfer system to thoroughly analyze how different control parameters affect the system performances under dynamic situations. For the first time, the power triangle phenomenon associated with the proposed optimum frequencies of a DWPT system is discovered to reveal the causal relationship between frequency, phase shift, and power. The theoretical performances of the proposed optimum frequencies are well aligned with the results of simulation and experiments, with 83% of the normalized root mean square errors less than 2%.

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Section: ) the Variation Ratementioning

confidence: 99%