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

Abstract: In 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.

Object Details

• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch

References and Relationships

• Bibliographic citation: Modeling and Experimental Investigation of a Periodically Excited Hybrid Energy-Harvesting Generator ; volume:2 ; number:3-4 ; year:2015 ; pages:213-226 ; extent:14 ; Energy Harvesting and Systems ; 2, Heft 3-4 (2015), 213-226 (gesamt 14)

Contributors, Places and Time

• Creator: Hofmann, Viktor ; Kleyman, Gleb ; Twiefel, Jens

Further information

• DOI: 10.1515/ehs-2014-0043
• URN: urn:nbn:de:101:1-2024022913481271089671
• Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 14.08.2025, 10:49 AM CEST