Power Conversion Efficiency of Cantilever-Type Vibration Energy Harvesters Based on Piezoceramic Films
Piezoelectric energy harvesters are very attractive to supply devices for remote sensing applications; however, they suffer from some limitations related to their low-power generation. Recently, piezoceramic flexible patches with high power conversion efficiency have been made commercially available...
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Veröffentlicht in: | IEEE transactions on instrumentation and measurement 2021-01, Vol.70, p.1-9 |
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creator | Quattrocchi, Antonino Freni, Fabrizio Montanini, Roberto |
description | Piezoelectric energy harvesters are very attractive to supply devices for remote sensing applications; however, they suffer from some limitations related to their low-power generation. Recently, piezoceramic flexible patches with high power conversion efficiency have been made commercially available. These film transducers can be suitably used to realize compact low-cost vibration energy harvesters. In this article, the performance of a cantilever-type piezoceramic energy harvester (PCEH) has been thoroughly investigated. Different resonance configurations were obtained by varying the proof mass attached to the free end of the beam. The effects of the excitation features (amplitude and frequency) on generated power and energy conversion efficiency have been evaluated. Furthermore, a rectification and regulation circuit was connected downstream to the PCEH in order to achieve a dc output. In such configuration, the influences of the resonance frequency and the electrical load on the recharging and discharging times were also assessed. |
doi_str_mv | 10.1109/TIM.2020.3026462 |
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Recently, piezoceramic flexible patches with high power conversion efficiency have been made commercially available. These film transducers can be suitably used to realize compact low-cost vibration energy harvesters. In this article, the performance of a cantilever-type piezoceramic energy harvester (PCEH) has been thoroughly investigated. Different resonance configurations were obtained by varying the proof mass attached to the free end of the beam. The effects of the excitation features (amplitude and frequency) on generated power and energy conversion efficiency have been evaluated. Furthermore, a rectification and regulation circuit was connected downstream to the PCEH in order to achieve a dc output. 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Recently, piezoceramic flexible patches with high power conversion efficiency have been made commercially available. These film transducers can be suitably used to realize compact low-cost vibration energy harvesters. In this article, the performance of a cantilever-type piezoceramic energy harvester (PCEH) has been thoroughly investigated. Different resonance configurations were obtained by varying the proof mass attached to the free end of the beam. The effects of the excitation features (amplitude and frequency) on generated power and energy conversion efficiency have been evaluated. Furthermore, a rectification and regulation circuit was connected downstream to the PCEH in order to achieve a dc output. In such configuration, the influences of the resonance frequency and the electrical load on the recharging and discharging times were also assessed.</description><subject>Circuits</subject><subject>Configurations</subject><subject>Efficiency</subject><subject>Electrical loads</subject><subject>Energy conversion</subject><subject>Energy conversion efficiency</subject><subject>Energy harvesting</subject><subject>Frequency conversion</subject><subject>Frequency measurement</subject><subject>mechanical vibrations</subject><subject>piezoceramic transducers</subject><subject>piezoelectric transducers</subject><subject>Piezoelectricity</subject><subject>Power conversion</subject><subject>Power management</subject><subject>Remote sensing</subject><subject>Resonance</subject><subject>Resonant frequency</subject><subject>Transducers</subject><subject>Vibration</subject><subject>Vibration measurement</subject><subject>vibration resonance</subject><subject>Vibrations</subject><issn>0018-9456</issn><issn>1557-9662</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNo9kEFPAjEQhRujiYjeTbw08bw4bbfd7VEJiAlGDuh10-1OTQnsYgsY_PUWIc5lknnvzUw-Qm4ZDBgD_TB_eR1w4DAQwFWu-BnpMSmLTCvFz0kPgJWZzqW6JFcxLgCgUHnRI27WfWOgw67dYYi-a-nIOW89tnZPO0eHpt34JSYxm-_XSD98Hczmz9di-NzTiQk7jJsUpk8mYkOTNPP401kMZuUtHfvlKl6TC2eWEW9OvU_ex6P5cJJN355fho_TzHLNNpmwprGi1nWZo04FTjiEppHKCCjzGhvbgNI1cqFLJ1CmAQgmodC2kSBEn9wf965D97VNf1WLbhvadLLiCQrnsmRFcsHRZUMXY0BXrYNfmbCvGFQHmlWiWR1oVieaKXJ3jHhE_LdrDpIrLX4B9bNxsA</recordid><startdate>20210101</startdate><enddate>20210101</enddate><creator>Quattrocchi, Antonino</creator><creator>Freni, Fabrizio</creator><creator>Montanini, Roberto</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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Recently, piezoceramic flexible patches with high power conversion efficiency have been made commercially available. These film transducers can be suitably used to realize compact low-cost vibration energy harvesters. In this article, the performance of a cantilever-type piezoceramic energy harvester (PCEH) has been thoroughly investigated. Different resonance configurations were obtained by varying the proof mass attached to the free end of the beam. The effects of the excitation features (amplitude and frequency) on generated power and energy conversion efficiency have been evaluated. Furthermore, a rectification and regulation circuit was connected downstream to the PCEH in order to achieve a dc output. 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subjects | Circuits Configurations Efficiency Electrical loads Energy conversion Energy conversion efficiency Energy harvesting Frequency conversion Frequency measurement mechanical vibrations piezoceramic transducers piezoelectric transducers Piezoelectricity Power conversion Power management Remote sensing Resonance Resonant frequency Transducers Vibration Vibration measurement vibration resonance Vibrations |
title | Power Conversion Efficiency of Cantilever-Type Vibration Energy Harvesters Based on Piezoceramic Films |
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