TY - GEN
T1 - Maximization of the power harvested via variable shunt load in a constrained energy harvesting device
AU - Simeone, L.
AU - Ghandchi Tehrani, M.
AU - Elliott, S. J.
N1 - Funding Information:
The authors would like to acknowledge the support provided by EPSRC Engineering nonlinearity Program grant (EP/K003836/1).
Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2016
Y1 - 2016
N2 - The aim of the paper is to show the improvement in the performance of a constrained electromagnetictransducer energy harvester, when a variable shunt load is used instead of a constant load. The energy harvester is assumed to be base-excited by a sinusoidal displacement. The device has a limited throw due to physical constraints, such as the available volume and the size, which means that, when the harvester is driven at resonance, above a specific input level, the relative displacement between the base and the oscillating mass cannot exceed a desired value. If the value of the electric load can be adjusted according to the input level, the harvester can always operate at the optimum conditions, and the harvested power increases when compared to a device with constant load. Also, an electromagnetictransducer energy harvesting device has been manufactured, in which an oscillating beam is connect to a DC generator. Several tests have been carried out with both constant and passive variable shunt load, which confirm that a variable shunt load is more effective than a constant load in terms of the output voltage and harvested power.
AB - The aim of the paper is to show the improvement in the performance of a constrained electromagnetictransducer energy harvester, when a variable shunt load is used instead of a constant load. The energy harvester is assumed to be base-excited by a sinusoidal displacement. The device has a limited throw due to physical constraints, such as the available volume and the size, which means that, when the harvester is driven at resonance, above a specific input level, the relative displacement between the base and the oscillating mass cannot exceed a desired value. If the value of the electric load can be adjusted according to the input level, the harvester can always operate at the optimum conditions, and the harvested power increases when compared to a device with constant load. Also, an electromagnetictransducer energy harvesting device has been manufactured, in which an oscillating beam is connect to a DC generator. Several tests have been carried out with both constant and passive variable shunt load, which confirm that a variable shunt load is more effective than a constant load in terms of the output voltage and harvested power.
UR - https://www.scopus.com/pages/publications/85018191470
M3 - Conference contribution
AN - SCOPUS:85018191470
T3 - Proceedings of ISMA 2016 - International Conference on Noise and Vibration Engineering and USD2016 - International Conference on Uncertainty in Structural Dynamics
SP - 717
EP - 730
BT - Proceedings of ISMA 2016 - International Conference on Noise and Vibration Engineering and USD2016 - International Conference on Uncertainty in Structural Dynamics
A2 - Sas, Paul
A2 - Moens, David
A2 - van de Walle, Axel
PB - KU Leuven - Departement Werktuigkunde
T2 - 27th International Conference on Noise and Vibration Engineering, ISMA 2016 and International Conference on Uncertainty in Structural Dynamics, USD2016
Y2 - 19 September 2016 through 21 September 2016
ER -