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High frequency is an effective method to improve transmission efficiency of inductively coupled power transfer (ICPT) system. However, it is hard for the high capacity semiconductor device to meet the high frequency need. In this paper, a novel multiple-frequency inductively power transfer system is proposed. By adopting a novel multiple-frequency topology of inverter, the transfer frequency of the...
A segment control scheme of inductive power transfer (IPT) system for rail transit is proposed in this paper. In this scheme, the power supply range of primary coils along the track is segmented into several intervals and the several sets of pickups are installed aboard. When the vehicle runs, the switching frequency and the reference current of inverters is modulated with the position of the pickup...
Movable contactless power supply (MCPS) is superior to traditional contacting power rails for the high-speed maglev trains. The resonant converter is normally preferred so as to improve the power efficiency of MCPS. But this MCPS is characterized with variable load parameters. This paper analyzes the characteristics of resonant converter with frequency and system delay. A direct resonant frequency...
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