Details
| Original language | English |
|---|---|
| Pages (from-to) | 213-226 |
| Number of pages | 14 |
| Journal | Energy Harvesting and Systems |
| Volume | 2 |
| Issue number | 3 |
| Early online date | 7 May 2015 |
| Publication status | Published - 1 Jul 2015 |
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.
Keywords
- electromagnetic, energy harvester model, non-harmonic oscillation, piezoelectric, transfer matrix method
ASJC Scopus subject areas
- Energy(all)
- Renewable Energy, Sustainability and the Environment
- Energy(all)
- Energy Engineering and Power Technology
- Engineering(all)
- Electrical and Electronic Engineering
- Chemistry(all)
- Electrochemistry
Sustainable Development Goals
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In: Energy Harvesting and Systems, Vol. 2, No. 3, 01.07.2015, p. 213-226.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Modeling and Experimental Investigation of a Periodically Excited Hybrid Energy-Harvesting Generator
AU - Hofmann, Viktor
AU - Kleyman, Gleb
AU - Twiefel, Jens
PY - 2015/7/1
Y1 - 2015/7/1
N2 - 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.
AB - 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.
KW - electromagnetic
KW - energy harvester model
KW - non-harmonic oscillation
KW - piezoelectric
KW - transfer matrix method
UR - http://www.scopus.com/inward/record.url?scp=85027802008&partnerID=8YFLogxK
U2 - 10.1515/ehs-2014-0043
DO - 10.1515/ehs-2014-0043
M3 - Article
AN - SCOPUS:85027802008
VL - 2
SP - 213
EP - 226
JO - Energy Harvesting and Systems
JF - Energy Harvesting and Systems
SN - 2329-8774
IS - 3
ER -