Investigation of Pendulum Structures for Rotational Energy Harvesting from Human Motion
[摘要] Energy Harvesting from human motion as a means of powering body-worn devices has been in the focus of research groups for several years now. This work presents a rotational inductive energy harvester that can generate a sufficient amount of energy during normal walking to power small electronic systems. Three pendulum structures and their geometrical parameters are investigated in detail through a system model and system simulations. Based on these results a prototype device is fabricated. The masses and angles between pendulum arms can be changed for the experiments. The device is tested under real-world conditions and generates an average power of up to 23.39 mW across a resistance equal to the coil resistance of the optimal pendulum configuration. A regulated power output of the total system including power management of 3.3 mW is achieved.
[发布日期] [发布机构] Hahn-Schickard, Wilhelm-Schickard-Str. 10, Villingen-Schwenningen; 78052, Germany^1;Fritz Huettinger Chai. of Microelectronics, Department of Microsystems Engineering - IMTEK, University of Freiburg, Germany^2
[效力级别] 能源学 [学科分类]
[关键词] Coil resistance;Electronic systems;Energy Harvester;Focus of researches;Prototype devices;Rotational energy;System modeling;System simulations [时效性]