A hybrid energy harvesting system for small battery powered applications

2011 ◽  
Author(s):  
Chang Ko Wei ◽  
Gobbi Ramasamy
Keyword(s):  
Energy Harvesting ◽  
Hybrid Energy ◽  
Energy Harvesting System ◽  
Hybrid Energy Harvesting

scholarly journals Power-Efficient Hybrid Energy Harvesting System for Harnessing Ambient Vibrations

2019 ◽  
Vol 66 (7) ◽  
pp. 2784-2793 ◽  
Author(s):  
Salar Chamanian ◽  
Berkay Ciftci ◽  
Hasan Ulusan ◽  
Ali Muhtaroglu ◽  
Haluk Kulah
Keyword(s):  
Energy Harvesting ◽  
Ambient Vibrations ◽  
Power Efficient ◽  
Hybrid Energy ◽  
Energy Harvesting System ◽  
Hybrid Energy Harvesting

Modeling and Experimental Investigation of a Periodically Excited Hybrid Energy-Harvesting Generator

2015 ◽  
Vol 0 (0) ◽  
Author(s):  
Viktor Hofmann ◽  
Gleb Kleyman ◽  
Jens Twiefel
Keyword(s):  
Experimental Investigation ◽  
Energy Harvesting ◽  
Energy Harvester ◽  
Piezoelectric Bimorph ◽  
Electric Power Output ◽  
Hybrid Energy ◽  
Energy Harvesting System ◽  
Harmonic Components ◽  
Hybrid Energy Harvesting ◽  
Harmonic System

AbstractIn this article the modeling of a broadband energy harvester utilizing piezoelectric and electromagnetic effects for rotational applications is presented. The hybrid energy harvester consists of a one-side-clamped piezoelectric bimorph with a solenoid on the free end and is excited periodically but non-harmonically by magnets that are fixed on a rotating object. To estimate and describe the performance of the energy harvester concept a linear semi-analytical model for the bimorph and the solenoid is developed and then enhanced for non-harmonic system oscillations by decomposing them into their harmonic components. A comparison between the calculated and measurement signals of a prototype device shows great conformity. According to model-based and experimental analysis, the hybrid system has good broadband behavior regarding electric power output. That aspect makes the device a perfect energy-harvesting system for application with highly fluctuating revolution speeds like miniature wind turbines.

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