مشخصات پژوهش

عنوان	Multi-Phase Direct AC Wireless Power Transfer System: Comparative Proposals Using Frequency and Amplitude Modulations
نوع پژوهش	مقاله چاپ‌شده در مجلات علمی
کلیدواژه‌ها	Amplitude modulation (AM), dc-ac power converters, demodulation, frequency modulation (FM), multi-load, multi-phase, receivers, transmitters, wireless power transfer (WPT)
چکیده	- Using multi-load wireless power transfer (WPT) systems to supply power to multiple receivers with a single transmitter is an interesting topic. However, previous studies are all based on a dc-dc WPT system. If the loads demand ac power, additional dc-ac inverters need to be implemented, which increases the system complexity and cost. This paper addresses two direct ac WPT systems that can regulate the ac power of multiple phases or loads independently, using frequency modulation (FM) and amplitude modulation (AM), respectively. The proposed WPT systems can directly control the ac power of multiple loads through the transmitter side, without any power converter at the receiver side. A typical application of the proposed system is for powering a three-phase load in a rotational object, e.g., three-phase motors in articulated robots or in-wheel motors. To demonstrate the feasibility of the proposed WPT systems, simulation and experiment studies of a wireless threephase power transfer are presented. The results suggest that AM is a more advantageous solution to a direct ac WPT system. A power-loss breakdown analysis is presented to suggest future steps of efficiency improvement.
پژوهشگران	آکیهیتو وادا (نفر پنجم)، هیروآکی اوتا (نفر اول)، توشیفومی ایسی (نفر ششم به بعد)، حسن بیورانی (نفر ششم به بعد)، شیگه کازو ساکابه (نفر ششم به بعد)، یوتا یاناگیساوا (نفر چهارم)، یوشی میورا (نفر سوم)، جیا لیو (نفر دوم)