Details

Autor(en) / Beteiligte

• Ishihara, Hiroaki
• Moritsuka, Fumi
• Kudo, Hiroki
• Obayashi, Shuichi
• Itakura, Tetsuro
• Matsushita, Akihisa
• Mochikawa, Hiroshi
• Otaka, Shoji

Titel

A voltage ratio-based efficiency control method for 3 kW wireless power transmission

Ist Teil von

• 2014 IEEE Applied Power Electronics Conference and Exposition - APEC 2014, 2014, p.1312-1316

Ort / Verlag

IEEE

Erscheinungsjahr

2014

Quelle

IEEE/IET Electronic Library (IEL)

Beschreibungen/Notizen

• This paper presents a novel control method for wireless power transmission (WPT). The proposed method can maximize the power efficiency only by controlling the voltage ratio between the primary and the secondary side. Experimental measurement results of the prototype system with 3 kW power transmission show the efficiency difference between the proposed control method and the available maximum value is less than 0.3 % even with a large variation of coil-to-coil distance and load voltage. The automatic controller for the proposed method provides the load-following operation, maintaining both constant power and high efficiency, using a WLAN connection.