Parametrically excited nonlinear piezoelectric compact wind turbine

Karami, M. Amin; Farmer, Justin; Inman, Daniel J.

doi:10.1016/j.renene.2012.07.037

Cited by 104 publications

(64 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the field of vibration energy harvesting, the concept of energy generation using impulsive kinetics has received attention to date [21][22][23][24][25][26] . The objectives of these works are the development of alternative means for energy conversion from very low frequency input motions and the minimization of the input excitation needed such that the harvester system is able to generate power.…”

Section: Pto Mechanism Designmentioning

confidence: 99%

“…The objectives of these works are the development of alternative means for energy conversion from very low frequency input motions and the minimization of the input excitation needed such that the harvester system is able to generate power. Of particular relevance to the present study, Karami et al 25 developed a compact, vibration energy harvester excited by impulsive interactions between dynamic harvester beams and a rotating windmill. Because the impulsive interactions could be directly adjusted to govern the minimum actuating energy (wind speed) required to generate power, the harvester system was shown to overcome damping, friction, and low wind speed limitations of conventional directly-and gearbox-driven wind energy conversion systems.…”

Section: Pto Mechanism Designmentioning

confidence: 99%

“…For compact WECs using directly driven PTO, the performance of both linear and rotary induction systems may suffer when the actuating motions (and hence input energies) are small because the high electromagnetic damping, sliding armature friction, and/or generator friction forces may not be exceeded by the actuating inertial forces. As demonstrated in the comparable wind energy application by Karami et al 25 , development of a PTO based upon impulsive interactions may be a suitable alternative for compact, mobile WEC which are less able to overcome minimum actuating energies of direct drive PTO because of their reduced mass. In fact, one recent study has experimentally demonstrated the potential for individual impulsive energy harvesting devices when the excitations have very low frequency and large displacement similar to ocean wave heaving 27 .…”

Section: Pto Mechanism Designmentioning

confidence: 99%

“…The common theme of the prior studies [23][24][25][26][27] is the implementation of bistability to obtain the impulsive responses. A number of researchers have recently recognized the great potential of bistable dynamics for powering small electronics using ambient vibrational energies as excitation.…”

Section: Pto Mechanism Designmentioning

confidence: 99%

See 3 more Smart Citations

Multistable chain for ocean wave vibration energy harvesting

2014

View full text Add to dashboard Cite

The heaving of ocean waves is a largely untapped, renewable kinetic energy resource. Conversion of this energy into electrical power could integrate with solar technologies to provide for round-the-clock, portable, and mobile energy supplies usable in a wide variety of marine environments. However, the direct drive conversion methodology of gridintegrated wave energy converters does not efficiently scale down to smaller, portable architectures. This research develops an alternative power conversion approach to harness the extraordinarily large heaving displacements and long oscillation periods as an excitation source for an extendible vibration energy harvesting chain. Building upon related research findings and engineering insights, the proposed system joins together a series of dynamic cells through bistable interfaces. Individual impulse events are generated as the inertial mass of each cell is pulled across a region of negative stiffness to induce local snap through dynamics; the oscillating magnetic inertial mass then generates current in a coil which is connected to energy harvesting circuitry. It is shown that linking the cells into a chain transmits impulses through the system leading to cascades of vibration and enhancement of electrical energy conversion from each impulse event. This paper describes the development of the multistable chain and ways in which realistic design challenges were addressed. Numerical modeling and corresponding experiments demonstrate the response of the chain due to slow and large amplitude input motion. Lastly, experimental studies give evidence that energy conversion efficiency of the chain for wave energy conversion is much higher than using an equal number of cells without connections.

show abstract

Section: Pto Mechanism Designmentioning

confidence: 99%

Section: Pto Mechanism Designmentioning

confidence: 99%

Section: Pto Mechanism Designmentioning

confidence: 99%

Section: Pto Mechanism Designmentioning

confidence: 99%

See 2 more Smart Citations

Multistable chain for ocean wave vibration energy harvesting

2014

View full text Add to dashboard Cite

show abstract

“…Nevertheless, energy harvester to collect energy from rotary motion can be very useful for many practical applications, such as the condition monitoring of rotating machine, 15 tire pressure monitoring, 16 and wind energy harvesting. 17 Kan et al 18 developed a piezo-disk energy harvester excited by rotary magnets. Zhang et al 19 investigated the energy harvesting for the practical tire application using a bistable cantilever structure.…”

Section: Introductionmentioning

confidence: 99%

A piezoelectric energy harvester for broadband rotational excitation using buckled beam

et al. 2018

View full text Add to dashboard Cite

An integrated multi-source energy harvester based on vibration and magnetic field energy AIP Advances 8, 056623 (2018) This paper proposes a rotational energy harvester using a piezoelectric bistable buckled beam to harvest low-speed rotational energy. The proposed harvester consists of a piezoelectric buckled beam with a center magnet, and a rotary magnet pair with opposite magnetic poles mounted on a revolving host. The magnetic plucking is used to harvest the angular kinetic energy of the host. The nonlinear snap-through mechanism is utilized to improve the vibration displacement and output voltage of the piezoelectric layer over a wide rotation frequency range. Theoretical simulation and experimental results show that the proposed energy harvester can yield a stable average output power ranging between 6.91-48.01 µW over a rotation frequency range of 1-14 Hz across a resistance load of 110 kΩ. Furthermore, dual attraction magnets were employed to overcome the suppression phenomenon at higher frequencies, which yields a broadband and flat frequency response over 6-14 Hz with the output power reaching 42.

show abstract

Fluid‐Induced Piezoelectric Energy Harvesters

2022

Flexible Piezoelectric Energy Harvesters and Sensors

View full text Add to dashboard Cite

Parametrically excited nonlinear piezoelectric compact wind turbine

Cited by 104 publications

References 21 publications

Multistable chain for ocean wave vibration energy harvesting

Multistable chain for ocean wave vibration energy harvesting

A piezoelectric energy harvester for broadband rotational excitation using buckled beam

Fluid‐Induced Piezoelectric Energy Harvesters

Contact Info

Product

Resources

About