Title :
A Batteryless Vibration-based Energy Harvesting System for Ultra Low Power Ubiquitous Applications
Author :
Chao, Lu ; Tsui, Chi-ying ; Ki, Wing-Hung
Author_Institution :
Dept. of Electron. & Comput. Eng., Hong Kong Univ. of Sci. & Technol.
Abstract :
This paper proposed a vibration driven energy harvesting platform based on piezoelectric material. A new maximum power point tracking (MPPT) method for this platform is also presented. This platform harvests ambient vibration energy as its power source, and is capable of self-starting, and self-powered operation without the need of a battery. The proposed MPPT methodology consumes very little power, and is especially suitable for the environments, where ambient harvested power is very low. System modeling, analysis, and implementation are developed. Simulation results show that the power harvesting efficiency with the proposed MPPT scheme is higher than 90% and the power utilization efficiency of the overall platform is higher than 50%.
Keywords :
low-power electronics; mobile computing; piezoelectric materials; power supplies to apparatus; ambient vibration energy; batteryless system; maximum power point tracking; piezoelectric material; ultra low power ubiquitous applications; vibration-based energy harvesting system; Application software; Batteries; Chaos; Pervasive computing; Piezoelectric materials; Power engineering and energy; Power engineering computing; Vibration control; Voltage; Wireless sensor networks;
Conference_Titel :
Circuits and Systems, 2007. ISCAS 2007. IEEE International Symposium on
Conference_Location :
New Orleans, LA
Print_ISBN :
1-4244-0920-9
Electronic_ISBN :
1-4244-0921-7
DOI :
10.1109/ISCAS.2007.378477
