Dynamic compensation strategy of inductive power transfer system with inductive-resistive load

被引：0
作者：
He, Zhengyou [1 ]
Li, Yong [1 ]
Mai, Ruikun [1 ]
Li, Yanling [1 ]
机构：
[1] School of Electrical Engineering, Southwest Jiaotong University, Chengdu
来源：
Xinan Jiaotong Daxue Xuebao/Journal of Southwest Jiaotong University | 2014年 / 49卷 / 04期
关键词：
Capacity compensation matrix; Frequency stability; Inductive power transfer; Inductive-resistive load; Resonant circuits;
D O I：
10.3969/j.issn.0258-2724.2014.04.002
中图分类号：
学科分类号：
摘要：
The equivalent inductive impedance of the rectifier load will lead to a detuned IPT (Inductive Power Transfer) system. In order to maintain resonance frequency, a dynamic compensation scheme was proposed. This scheme utilizes short-time Fourier transformation to obtain the current and voltage phasors, and then calculates the impedance. It can dynamically adjust the equivalent capacitance value of the capacitor array by turning off or on the static switches, and realize load inductance compensation. The experiments were performed to compare the performance between the frequency tracking method and the proposed algorithm under rectified load. The result shows that with 100 and 50 Ω load resistances, the proposed algorithm can increase the real power by 12.1% and 7.3%. Moreover, the resonance frequency of the primary circuit can be maintained and the switching devices can work under a ZCS (Zero Current Switching) condition.
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页码：569 / 575and589
相关论文
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