A Novel Analysis Method Based on Quadratic Eigenvalue Problem for Multirelay Magnetic Coupling Wireless Power Transfer

Hou, Xinyu; Su, Yugang; Zuo, Zhiping; Dai, Xin; Fei, Yingjun

doi:10.1109/tpel.2021.3062394

Cited by 21 publications

(4 citation statements)

References 25 publications

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“…Compared to the traditional impedance adjustment method (Capacitor matrix [13], variable capacitor [14]- [16], and variable inductor [17]- [18], [20]), the extra switch components and DC source can be saved. Although the extra LC filter is required in the proposed method, the constant output regulation, primary tuning, and secondary tuning can be simultaneously achieved compared with the frequency control methods [21]- [23]. For Ref.…”

Section: B Comparison and Discussionmentioning

confidence: 99%

“…For the converter control, a common method is to incorporate a frequency tracking strategy in the IPT system to A Design Method to Minimize Detuning for Double-Sided LCC-Compensated IPT System Improving Efficiency Versus Air Gap Variation Bin Yang, Yiming Zhang, Chenyan Zhu, Subham Sahoo, Senior Member, IEEE, Yang Chen, Member, IEEE, Ruikun Mai, Senior Member, IEEE, Zhengyou He, Senior Member, IEEE, Frede Blaabjerg, Fellow, IEEE combat the detuning caused by variations in LCT parameters [21]- [23]. Aiming at minimizin g the phase angle between the output voltage and current of the inverter, the operated frequency of the system can be adjusted to track the resonant point.…”

mentioning

confidence: 99%

“…Fig 23. The measured results of (a) the phase angle ɸ between Ip and Is, and (b) the input impedance angle θ.…”

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confidence: 99%

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A Design Method to Minimize Detuning for Double-Sided LCC-Compensated IPT System Improving Efficiency Versus Air Gap Variation

Yang,

Zhang,

Zhu

et al. 2024

IEEE Trans. Power Electron.

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Inductive power transfer (IPT) technology has garnered considerable attention due to its widespread range of applications. The variation in the air gap can result in variations in the loosely coupled transformer (LCT) parameters, including self-inductance and mutual inductance, due to positional deviations with the ferrite cores on both sides. These variable LCT parameters can damage the resonant tank, ultimately resulting in reduced efficiency. To address this problem, a double-sided LCC-compensated IPT system with a compact decoupled coil is proposed in this paper to improve the system's efficiency with respect to the air gap variation. The key idea is to neutralize the variation in LCT parameters through the use of the self-inductance variation of the decoupled coil so that the detuning degree of the system can be suppressed. Subsequently, the analysis and parametric design process of the system are elaborated. Finally, a 1 kW experimental setup is built to verify the feasibility of the proposed method. Experimental results show that the efficiency of the system proposed in this work varies from 92.63% to 74.81%, as the air gap increases from 30mm to 90mm, wherein the primary and secondary self-inductance and mutual inductance increased by 19.3% and 135.3%, respectively. Compared with the traditional method, the maximum efficiency improvement is up to 8.16%.

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Section: B Comparison and Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

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A Design Method to Minimize Detuning for Double-Sided LCC-Compensated IPT System Improving Efficiency Versus Air Gap Variation

Yang,

Zhang,

Zhu

et al. 2024

IEEE Trans. Power Electron.

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“…We assume that ( 7) is a quadratic eigenvalue problem (QEP) [14][15][16][17][18][19][20], i.e., we determine the scalar λ ∈ C and the non-zero vectors x, y ∈ C N , such that…”

Section: Modelmentioning

confidence: 99%

Effect of Parameter Configuration on Free Vibration of Networked Harmonic Oscillators with Viscous Damping

Liu

2023

Acta Phys. Pol. A

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Heterogeneous oscillator networks consist of a dynamical function that describes the state of the oscillator (containing several parameters) and a topology that reflects the connections between the oscillators. Revealing the macroscopic dynamics of systems under different configurations of parameters and topology is a topic worthy of discussion and comes with great challenges. In this study, we discuss the effect of different parameter configurations on the damped free vibration of a classical spring oscillator network. On the regular network, we give the analytical expression satisfied by the free vibration of the system under over-damping and critical damping. Furthermore, we discuss the fastest and slowest exponential rates of decay of the system for different parameter conditions. In conjunction with quadratic eigenvalue theory, we extend the above analysis from regular networks to complex networks. We give a general method for calculating the eigenvalue spectrum of the system for arbitrary parameter configurations. In conjunction with the stability of the system and the rate of decay of the exponential rate, we also give numerical simulation results for the second largest and smallest real parts of the eigenvalues of the system. Finally, through the comparative analysis of the simulation results, we relax the matching relationship between the three parameters (mass, damping, and degree) to the matching between two parameters (mass and damping). topics: parameter configurations, damped free vibration, over-damping, critical damping

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Parameter Design Method for Series-series Compensated Wireless Power Transfer System Based on Natural Frequency Tracking

Mo,

Xiao,

et al. 2023

2023 IEEE 6th International Conference on Information Systems and Computer Aided Education (ICISCAE)

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A Novel Analysis Method Based on Quadratic Eigenvalue Problem for Multirelay Magnetic Coupling Wireless Power Transfer

Cited by 21 publications

References 25 publications

A Design Method to Minimize Detuning for Double-Sided LCC-Compensated IPT System Improving Efficiency Versus Air Gap Variation

A Design Method to Minimize Detuning for Double-Sided LCC-Compensated IPT System Improving Efficiency Versus Air Gap Variation

Effect of Parameter Configuration on Free Vibration of Networked Harmonic Oscillators with Viscous Damping

Parameter Design Method for Series-series Compensated Wireless Power Transfer System Based on Natural Frequency Tracking

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