Analysis of a micro-electric generator for microsystems

Williams, C.B.; Yates, Robert D.

doi:10.1016/0924-4247(96)80118-x

Cited by 1,117 publications

(473 citation statements)

References 3 publications

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“…Williams and Yates developed a generic model based on inertial kinetic energy [19]. The model is a lumpedparameter second order dynamic system which relates the input vibration   y t to the output relative displace- Figure 3).…”

Section: Theoretical Backgroundmentioning

confidence: 99%

Power Analysis for Piezoelectric Energy Harvester

Ali

Ibrahim

2012

EPE

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Piezoelectric energy harvesting technology is used to design battery less microelectronic devices such as wireless sensor nodes. This paper investigates the necessary conditions to enhance the extracted AC electrical power from exciting vibrations energy using piezoelectric materials. The effect of tip masses and their mounting positions are investigated to enhance the system performance. The optimal resistive load is estimated to maximize the power output. Different capacitive loads are tested to store the output energy. The experimental results validated the theoretical analysis and highlighted remarks in the paper.

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Section: Theoretical Backgroundmentioning

confidence: 99%

Power Analysis for Piezoelectric Energy Harvester

Ali

Ibrahim

2012

EPE

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“…The applications of small actuators and sensors work in small networks and stimulate new research ideas on ambient energy harvesting [2][3][4][5]. The solutions of frequency broadband nonlinear vibration have been developed in competition with photo-voltaic and thermal gradient approaches [7,8].…”

Section: Introductionmentioning

confidence: 99%

“…In case of stable narrow band excitations, the approach is to introduce the mechanical system to resonate. Unfortunately it performs a weakness in transient and changeable conditions of ambient excitation [2,5]. Availabilities of energy harvesting at small levels, apart from resonance area is usually insufficient and requires a tuning process.…”

Section: Introductionmentioning

confidence: 99%

Energy harvesting of cantilever beam system with linear and nonlinear piezoelectric model

Borowiec

2015

Eur. Phys. J. Spec. Top.

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Abstract. The nonlinear beam with vertical combined excitations is proposed as an energy harvester. The nonlinearities are included both, in the beam model and also in the electrical subsystem. The system is modelled as a cantilever beam with included a tip mass and piezoelectric patches which convert the bending strains induced by both, the harmonic and the additive stochastic forces. The excitation affects in vertical directions by kinematic forcing into electrical charge. The first main goal is to analyse the dynamics of the electro-mechanical beam system and the influence of the mixed excitation forces into an effectiveness of the energy harvesting. Overcoming the potential barrier by the beam system is also analysed, where large output amplitudes occur. Such region of the vibration affects more power generation, which is crucial in terms of load resistors sensitivities. By increasing the additive noise level with fixed harmonic force it is observed the transition from single well oscillations to inter-well stochastic jumps. The second mail goal is analysing the influence of the piezoelectric nonlinear characteristic and compare the results to the linear piezoelectric cases. The output power is measured during different system behaviours provided by different piezoelectric characteristic as well as introduced stochastic components by modulated tip mass of the system.

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“…More and more scholars have focused on energy harvesting from vibration since the electric energy can be converted from vibration using piezoelectric materials [1]. Mitcheson et al [2] suggested that a piezoelectric harvester with a non-resonant structure was the best choice for harvesting energy from low frequency ambient vibration.…”

Section: Introductionmentioning

confidence: 99%

A Piezoelectric Energy Harvester with Bending–Torsion Vibration in Low-Speed Water

et al. 2017

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This paper presents a piezoelectric energy harvester using an eccentric cylinder undergoing bending-torsion vibration in low-speed water. It can harvest energy from water using vortex-induced vibration (VIV). A distributed parameter beam model with respect to the motion of the piezoelectric beam was established based on Euler-Bernoulli beam theory. The governing coupled equations of the harvester system were derived by Lagrange's equations. The optimal configurations and work conditions of harvesters were numerically analyzed according to the above mathematical models. Experiments were designed and performed to verify the numerical results. The numerical results were in good agreement with the experiment results, which verifies the validity of the mathematical models. The harvester with bending-torsion vibration generated an output power of 0.3978 mW, which is 1.99 times of that of the harvester with a solid-cylinder tip undergoing bending only.

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Analysis of a micro-electric generator for microsystems

Cited by 1,117 publications

References 3 publications

Power Analysis for Piezoelectric Energy Harvester

Power Analysis for Piezoelectric Energy Harvester

Energy harvesting of cantilever beam system with linear and nonlinear piezoelectric model

A Piezoelectric Energy Harvester with Bending–Torsion Vibration in Low-Speed Water

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