System-Level Modeling of Piezoelectric Energy Harvesters


Article Preview

Accurate modeling and computer aided simulation is advantageous during the design stage of a piezoelectric energy harvesting system. In this paper, system-level finite element modeling (FEM) of a cantilevered piezoelectric energy harvester with a resistor is conducted using ANSYS. Considering that practical energy harvesting circuit includes nonlinear electrical elements, which is beyond the modeling capability of ANSYS, an equivalent circuit modeling (ECM) method is proposed to address the problem. After the parameters of equivalent circuit are identified, system-level simulation is conducted in SPICE software.



Advanced Materials Research (Volumes 79-82)

Edited by:

Yansheng Yin and Xin Wang




L. H. Tang and Y. W. Yang, "System-Level Modeling of Piezoelectric Energy Harvesters", Advanced Materials Research, Vols. 79-82, pp. 103-106, 2009

Online since:

August 2009




[1] A. Erturk and D.J. Inman, Journal of Vibration and Acoustics, (2008), 130(4): 041002.

[2] Y. Liao and H.A. Sodano, Smart Materials and Structures, (2008), 17: 065026.

[3] S. Roundy, E.S. Leland, J. Baker, E. Carleton, E. Reilly, E. Lai, B. Otis, J.M. Rabaey, P.K. Wright and V. Sundararajan, IEEE Pervasive Computing, (2005), 4(1): 28-36.


[4] H.A.C. Tilmans, Journal of Micromechanics and Microengineering, (1997), 7: 285-309.