Abstract
This paper deals with the efficiency analysis of developed electromagnetic vibration energy harvesting systems. The efficiency analysis of this energy harvesting system is specified and a linear model of the vibration energy harvesting system is simulated to determine theoretical limits. The influence of individual parameters of vibration energy harvesters is evaluated by the simulation model. Three vibration energy harvesting devices, developed at Brno University of Technology, were measured and their efficiencies were consecutively calculated from the measured data. Vibration tests of these harvesters were done with a lightweight vibrating structure of a steel beam where the effect of the vibration energy harvester operation is noticeable. The effects of used electronics and power management circuit for different levels of excited mechanical vibrations are presented. Realized analyses and measurements will be used for future improvement of vibration energy harvester design; mainly in applications of lightweight vibrating structures where the vibration energy harvester can affect mechanical vibrations in feedback.
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Acknowledgments
The research leading to these results has received funding from the Ministry of Education, Youth and Sports, Czech Republic under the National Sustainability Programme I (Project LO1202) and additionally it has been funded by the European Commission within the FP7 project “Efficient Systems and Propulsion for Small Aircraft| ESPOSA”, Grant Agreement No. ACP1-GA-2011-284859-ESPOSA.
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Hadas, Z., Vetiska, V., Vetiska, J. et al. Analysis and efficiency measurement of electromagnetic vibration energy harvesting system. Microsyst Technol 22, 1767–1779 (2016). https://doi.org/10.1007/s00542-016-2832-4
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DOI: https://doi.org/10.1007/s00542-016-2832-4