Energy Harvesting with Functional Materials and Microsystems

 

9 Piezoelectric Vibration Energy Harvesters Modeling, Design, Limits, and Benchmarking

A. Dompierre, S. Vengallatore and L. G. Fréchette

 

CONTENTS

9.1 Introduction

9.1.1 Energy Transfer in PVEH Devices

9.2 Single Degree of Freedom Model of a PVEH

9.2.1 Lumped Parameter Modeling

9.2.2 Piezoelectricity Effects on Resonance and Closed- Loop Solutions

9.2.3 Resistive Load Optimization

9.2.4 Resonator Figure of Merit

9.3 Limit Based on Inertial Coupling

9.3.1 Inertial Coupling Limit of Linear Resonator

9.3.2 Summary

9.4 Stress-Based Limits

9.4.1 Power Density with Uniform Stress

9.4.2 Power Density Reduction with Stress Distribution: The Case of the Cantilever

9.5 Electromechanical Conversion

9.5.1 Geometrical Considerations

9.5.2 Piezoelectric ...