Development of 1-MW Inductive Power Transfer System for a High-Speed Train

作者：Kim, Jae Hee^*; Lee, Byung-Song; Lee, Jun-Ho; Lee, Seung-Hwan; Park, Chan-Bae; Jung, Shin-Myung; Lee, Soo-Gil; Yi, Kyung-Pyo; Baek, Jeihoon

来源：IEEE Transactions on Industrial Electronics, 2015, 62(10): 6242-6250.

DOI：10.1109/TIE.2015.2417122

• High power
• inductive power transfer (IPT)
• pickup
• railway

Design and fabrication of a 1-MW inductive power transfer (IPT) system that supplies power to the vehicle in real time without any battery charge is proposed for a high-speed train. The IPT system consists of a 1-MW resonant inverter, a 128-m transmitter, four pickups, including rectifiers, and a wireless feedback network to maintain a constant output voltage of the pickups. The operating frequency of the system is 60 kHz to achieve efficient power transfer with a large air gap. The measured efficiency of the IPT system at the 818-kW output power of the pickups for the 5-cm air gap is 82.7%. The electromagnetic field and the induced voltage at the rail are also measured for safety evaluation. The fabricated IPT system was adapted to the high-speed train, and the train successfully accelerates to a speed of 10 km/h according to startup procedures.

• 出版日期2015-10