Vacuum-Packaged Piezoelectric Energy Harvester for Powering Smart Grid Monitoring Devices
Artikel i vetenskaplig tidskrift, 2019

This paper presents an analytical method for the design and power optimization of vacuum-packaged piezoelectric energy harvesters. It is shown that the maximum power point of a vacuum-packaged energy harvester is different from the conventional one which occurs when the electrical damping ratio equals to its mechanical counter-part. Also, it is shown that the captured power by a vacuum-packaged energy harvester is highly sensitive to the vibration frequency due to very low-mechanical damping ratio, e.g., up to 50% power drops corresponding to 2% deviations in the frequency. The analysis and design are performed in the context of an ac-line magnetic field energy harvester in which the line frequency is also fixed and this energy harvester is useful for developing the self-powered wireless monitoring devices. Furthermore, the vacuum-packaged devices are inherently robust against dust storm and icing phenomenon, which occur for overhead power lines. The proposed analytical method is established based on simplified assumptions and then an accurate method is developed for the analysis of vacuum-packaged devices. Obtained theoretical results are verified in the laboratory through a prototype of the vacuum-packaged piezoelectric device, which captures up to 90 mu W from a 10-A line current.

smart grid monitoring

piezoelectric beam

AC magnetic field

piezoelectric energy harvesting

vacuum packaged

self-power wireless sensor


Alireza Abasian

Isfahan University of Technology

Ahmadreza Tabesh

Isfahan University of Technology

Nasrin Rezaei-Hosseinabadi

Isfahan University of Technology

Abolghasem Zeidaabadi Nezhad

Isfahan University of Technology

Massimo Bongiorno

Chalmers, Elektroteknik, Elkraftteknik

Sayed Ali Khajehoddin

University of Alberta

IEEE Transactions on Industrial Electronics

0278-0046 (ISSN)

Vol. 66 6 4447-4456 8424242


Acceleratorfysik och instrumentering

Marin teknik

Annan elektroteknik och elektronik



Mer information

Senast uppdaterat