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一种两自由度的压电-电磁复合能量收集器(英文) 被引量:3

A 2DOF hybrid energy harvester based on combined piezoelectric and electromagnetic conversion mechanisms
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摘要 研究目的:对一种两自由度的压电-电磁复合能量收集器进行发电性能研究。创新要点:建立了一种两自由度压电-电磁复合能量收集器发电性能的数学模型,该数学模型可以评估两自由度压电-电磁复合能量收集器中压电元件、电磁元件以及系统总输出功率。研究方法:对一种两自由度的压电-电磁复合能量收集器进行数学建模,并实验验证数学模型的正确性。基于实验测试得到的系统参数值,理论研究压电元件和电磁元件的机电耦合系数对不同能量收集器发电性能的影响关系,并对几种能量收集器的发电能力进行对比分析。重要结论:对于非强耦合(弱或中间耦合)的两自由度机电转换器,复合能量收集器(压电+电磁)具有比单一能量收集器(压电或电磁)更高的发电能力。 This paper presents a two-degree-of-freedom(2DOF) hybrid piezoelectric-electromagnetic energy harvester(P-EMEH). Such a 2DOF system is designed to achieve two close resonant frequencies. The combined piezoelectricelectromagnetic conversion mechanism is exploited to further improve the total power output of the system in comparison to a stand-alone piezoelectric or electromagnetic conversion mechanism. First, a mathematical model for the 2DOF hybrid P-EMEH is established. Subsequently, the maximal power output of the 2DOF hybrid P-EMEH is compared both experimentally and theoretically with those from the 1DOF piezoelectric energy harvester(PEH), 1DOF electromagnetic energy harvester(EMEH), 2DOF PEH, and 2DOF EMEH. Based on the validated mathematical model, the effect of the effective electromechanical coupling coefficients(EMCC) on the maximal power outputs from various harvester configurations is analyzed. The results indicate that for the 2DOF hybrid P-EMEH, although the increase of the power output from one electromechanical transducer will lead to the decrease of the power output from the other, the overall performance of the system is improved in weak and medium coupling regimes by increasing electromechanical coupling. In weak and medium coupling scenarios, the hybrid energy harvester configuration is advantageous over conventional 1DOF or 2DOF harvester configurations with a stand-alone conversion mechanism.
出处 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2014年第9期711-722,共12页 浙江大学学报(英文版)A辑(应用物理与工程)
基金 supported by the National Natural Science Foundation of China(No.51077018) the Heilongjiang Provincial Natural Science Fundation(No.F201219) the Program for Young Teachers Scientific Research in Qiqihar University(No.2012k-Z12),China
关键词 振动 复合能量收集 两自由度模型 压电 电磁 Vibration Two-degree-of-freedom(2DOF) Hybrid piezoelectric-electromagnetic conversion Energy harvesting
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  • 1Aldraihem, O., Baz, A., 2011. Energy harvester with dynamic magnifier. Journal of Intelligent Material Systems and Structures, 22(6):521-530. [doi: 10.1177/1045389X1140 2706].
  • 2Arafa, M., Akl, W., Aladwani, A., et al., 2011. Experimental implementation of a cantilevered piezoelectric energy harvester with a dynamic magnifier. Proceedings of SPIE, Active and Passive Smart Structures and Integrated Systems, San Diego, USA, p.79770Q. [doi: 10.1117/12. 880689].
  • 3Challa, V.R., Prasad, M.G., Fisher, F.T., 2009. Coupled piezoelectric-electromagnetic energy harvesting tech- nique for achieving increased power output through damping matching. Smart Materials and Structures, 18(9):095029. [doi: 10.1088/0964-1726/18/9/095029].
  • 4Challa, V.R., Cheng, S., Arnold, D.P., 2013. The role of coupling strength in the performance of electrodynamic vibrational energy harvesters. Smart Materials and Structures, 22(2):025005. [doi: 10.1088/0964-1726/22/2/ 025005].
  • 5Dutoit, N.E., Wardle, B.L., Kim, S.G., 2005. Design considerations for MEMS-scale piezoelectric mechanical vibration energy harvesters. Integrated Ferroelectrics, 71(1): 121-160. [doi: 10.1080/10584580590964574].
  • 6Elvin, N.G., Elvin, A.A., 2011. An experimentally validated electromagnetic energy harvester. Journal of Sound and Vibration, 330(10):2314-2324. [doi:10.1016/j.jsv.2010. 11.024].
  • 7Guyomar, D., Badel, A., Lefeuvre, E., et al., 2005. Toward energy harvesting using active materials and conversion improvement by nonlinear processing. IEEE Transctions on Ultrasonics, Ferroelectrics, and Frequency Control, 52(4):584-595. [doi:10.1109/TUFFC.2005.1428041].
  • 8Harne, R.L., 2012. Theoretical investigations of energy harvesting efficiency from structural vibrations using piezoelectric and electromagnetic oscillators. The Journal of the Acoustical Society of America, 132(1): 162-172. [doi: 10.1121/1.4725765].
  • 9Jung, H.J., Kim, I.H., Koo, J.H., 2011. A multi-functional cable-damper system for vibration mitigation, tension estimation and energy harvesting. Smart Structures and Systems, 7(5):379-392. [doi:10.12989/sss.2011.7.5.379].
  • 10Khaligh, A., Zeng, P., Wu, X., et al., 2008. A hybrid energy scavenging topology for human-powered mobile electronics. Proceedings-34th Annual Conference of the IEEE Industrial Electronics Society, Orlando, USA, p.448-453. [doi: 10.1109/IECON.2008.4757995].

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