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Load Detection Model of Voltage-Fed Inductive Power Transfer System

电压型感应电能传输系统负荷检测模型

【作 者】

【摘 要】

Abstract: 

Detecting load parameters in the inductive power transfer (IPT) system is essential to establishing a stable and efficient wireless power supply of good quality for kitchen appliances. This paper presents an effective load detection approach, namely transient load detection model, to detect load conditions by utilizing the energy injection mode and free resonant mode. To realize the proposed model, the differential equation of the primary resonant current under the free resonant mode was used. Besides, real-time sampled data, including the operating frequency in the free resonant mode and peak value of the primary resonant current were collected. Imitating the wireless power supply for kitchen appliances, simulation and experimental results with the full-bridge SS-type voltage-fed IPT system have shown that this transient load detection model is accurate and reliable.

Keywords: Home appliances, Resonant frequency, Resistance, Load modeling, Power supplies, Inductance, Windings

Published in: IEEE Transactions on Power Electronics ( Volume: 28, Issue: 11, Nov. 2013 )

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