Synchronized switch harvesting applied to self-powered smart systems: Piezoactive microgenerators for autonomous wireless receivers

Abstract This paper introduces the conceptual architecture of a fully integrated, truly self-powered structural health monitoring (SHM) scheme. The challenge here is to power an array of numerous distributed actuators and sensors as well as wireless data transmission modules without recurring to heavy and costly wiring. Based on microgenerators which directly convert ambient mechanical energy into electrical energy, using the synchronized switch harvesting (SSH) method, the proposed solution allows avoiding the periodic replacement or reloading of batteries. This addresses environmental and economic issues at the same time, knowing that such elements are heavy, polluting and might be installed in rather inaccessible locations. Indeed, especially in airborne structures saving weight and maintenance cost is of priority importance. Previous work showed that such microgenerators provide a stand-alone power source, whose performances meet the requirements of autonomous wireless transmitters (AWTs) that comprise an acoustic Lamb wave's actuator and a radio frequency (RF) emitter (D. Guyomar, Y. Jayet, L. Petit, E. Lefeuvre, T. Monnier, C. Richard, M. Lallart, Synchronized switch harvesting applied to self-powered smart systems: Piezoactive microgenerators for autonomous wireless transmitters, Sens Actuators A: Phys. 138 (1) (2007) 151–160, doi:10.1016/j.sna.2007.04.009 ). Following this work, the present contribution presents a further step towards the integration of the SHM technique. It shows the ability of our microgenerators to provide enough energy to give logical autonomy to each self-powered sensing node, named autonomous wireless receiver (AWR), and thus to provide some local (decentralized) pre-processing ability to the SHM system. A preliminary design of the device using off-the-shelf electronics and surface mounted piezoelectric patches will be presented. Since the existence of a positive energy balance between the harvesting capabilities of the SSH technique and the energy requirements of the proposed device will be proved, the system formed by the combination of the AWR with the previously developed AWT, is a proof of concept of truly self-powered smart systems for damage detection in simple structures, setting apart application-specific optimization or miniaturization concerns that will be addressed in future works.

[1]  V. Giurgiutiu.  Tuned Lamb Wave Excitation and Detection with Piezoelectric Wafer Active Sensors for Structural Health Monitoring , 2005 .

[2]  Thomas Monnier,et al.  Lamb Waves-based Impact Damage Monitoring of a Stiffened Aircraft Panel using Piezoelectric Transducers , 2006 .

[3]  Francois Costa,et al.  Generation of electrical energy for portable devices: Comparative study of an electromagnetic and a piezoelectric system , 2004 .

[4]  A. von Jouanne,et al.  Novel power conditioning circuits for piezoelectric micropower generators , 2004, Nineteenth Annual IEEE Applied Power Electronics Conference and Exposition, 2004. APEC '04..

[5]  Adrien Badel,et al.  A comparison between several vibration-powered piezoelectric generators for standalone systems , 2006 .

[6]  Kristofer S. J. Pister,et al.  Micro-Electrostatic Vibration-to-Electricity Converters , 2002 .

[7]  Randy H. Katz,et al.  Next century challenges: mobile networking for “Smart Dust” , 1999, MobiCom.

[8]  Adrien Badel,et al.  Energy harvesting using piezoelectric materials: Case of random vibrations , 2007 .

[9]  Eric M. Yeatman,et al.  Advances In Power Sources For Wireless Sensor Nodes , 2004 .

[10]  S. Sugiyama,et al.  Thermoelectric micro power generator utilizing self-standing polysilicon-metal thermopile , 2001, Technical Digest. MEMS 2001. 14th IEEE International Conference on Micro Electro Mechanical Systems (Cat. No.01CH37090).

[11]  D. Guyomar,et al.  Toward energy harvesting using active materials and conversion improvement by nonlinear processing , 2005, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control.

[12]  H. Lamb.  On waves in an elastic plate , 1917 .

[13]  Peter Glynne-Jones,et al.  An investigation of self-powered systems for condition monitoring applications☆ , 2004 .

[14]  Alex Elvin,et al.  A self-powered mechanical strain energy sensor , 2001 .

[15]  T. S. Birch,et al.  Development of an electromagnetic micro-generator , 1997 .

[16]  Heath Hofmann,et al.  Optimized piezoelectric energy harvesting circuit using step-down converter in discontinuous conduction mode , 2003 .

[17]  Khai D. T. Ngo,et al.  Technology Development for Self-Powered Sensors , 2002 .

[18]  N. Dutoit,et al.  PERFORMANCE OF MICROFABRICATED PIEZOELECTRIC VIBRATION ENERGY HARVESTERS , 2006 .

[19]  Paul K. Wright,et al.  A piezoelectric vibration based generator for wireless electronics , 2004 .

[20]  R. Engelbrecht,et al.  DIGEST of TECHNICAL PAPERS , 1959 .

[21]  Claude Richard,et al.  Enhanced semi-passive damping using continuous switching of a piezoelectric device on an inductor , 2000, Smart Structures.

[22]  Du Toit,et al.  Modeling and design of a MEMS piezoelectric vibration energy harvester , 2005 .

[23]  Mani Srivastava,et al.  Energy-aware wireless microsensor networks , 2002, IEEE Signal Process. Mag..

[24]  Yoshihiro Hamakawa.  30 years trajectory of a solar photovoltaic research , 2003, 3rd World Conference onPhotovoltaic Energy Conversion, 2003. Proceedings of.

[25]  Anna Marie Mracek,et al.  Towards and embeddable structural health monitoring sensor : design and optimization of MEMS piezoelectric vibration energy harvesters , 2006 .

[26]  Jan M. Rabaey,et al.  A study of low level vibrations as a power source for wireless sensor nodes , 2003, Comput. Commun..

[27]  Heath Hofmann,et al.  Damping as a result of piezoelectric energy harvesting , 2004 .

[28]  Philippe Guy,et al.  Guided-wave interaction with complex delaminations: application to damage detection in composite structures , 2003, SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.

[29]  David L. Churchill,et al.  Power management for energy harvesting wireless sensors , 2005, SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.

[30]  S. Farritor,et al.  On low-frequency electric power generation with PZT ceramics , 2005, IEEE/ASME Transactions on Mechatronics.

[31]  Bernard H. Stark,et al.  MEMS electrostatic micropower generator for low frequency operation , 2004 .