A new energy harvester using a piezoelectric and suspension electromagnetic mechanism

Shan, Xiaobiao; Guan, Shi-wei; Liu, Zhang-shi; Xu, Zhenlong; Xie, Tao

doi:10.1631/jzus.a1300210

Cited by 39 publications

(24 citation statements)

References 19 publications

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“…The first and the second resonances of such device were 20 Hz and 300 Hz. Wang et al [32] and Shan et al [33] analyzed the characteristics of the two degree-of-freedom (2DOF) HEH. Among these works, the resonant frequencies of VEHs are fixed when the prototypes are assembled.…”

Section: Introductionmentioning

confidence: 99%

A Novel Tunable Multi-Frequency Hybrid Vibration Energy Harvester Using Piezoelectric and Electromagnetic Conversion Mechanisms

Shan

Chen

et al. 2016

Applied Sciences

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This paper presents a novel tunable multi-frequency hybrid energy harvester (HEH). It consists of a piezoelectric energy harvester (PEH) and an electromagnetic energy harvester (EMEH), which are coupled with magnetic interaction. An electromechanical coupling model was developed and numerically simulated. The effects of magnetic force, mass ratio, stiffness ratio, and mechanical damping ratios on the output power were investigated. A prototype was fabricated and characterized by experiments. The measured first peak power increases by 16.7% and 833.3% compared with that of the multi-frequency EMEH and the multi-frequency PEH, respectively. It is 2.36 times more than the combined output power of the linear PEH and linear EMEH at 22.6 Hz. The half-power bandwidth for the first peak power is also broadened. Numerical results agree well with the experimental data. It is indicated that magnetic interaction can tune the resonant frequencies. Both magnetic coupling configuration and hybrid conversion mechanism contribute to enhancing the output power and widening the operation bandwidth. The magnitude and direction of magnetic force have significant effects on the performance of the HEH. This proposed HEH is an effective approach to improve the generating performance of the micro-scale energy harvesting devices in low-frequency range.

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Section: Introductionmentioning

confidence: 99%

A Novel Tunable Multi-Frequency Hybrid Vibration Energy Harvester Using Piezoelectric and Electromagnetic Conversion Mechanisms

Shan

Chen

et al. 2016

Applied Sciences

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“…[1][2][3][4] Recently, researchers found that the energy of the suspension vibration can be regenerated by means of magnetic suspension [5][6][7][8][9][10][11] and piezoelectric suspension. [12][13][14][15][16] In Segal and Lu, 17 the influence of suspension damping, tires, and road surface roughness on the vehicle running resistance was analyzed, and it was noted that, when the vehicle drove at a speed of 48 km/h, the damper dissipated approximately 200 W of energy. Hsu 18 deeply studied the active suspension based on the Linear-Quadratic-Gaussian (LQG) control strategy, and it was found that, when the vehicle was driving at a high speed of 96 km/h, the vibration energy can be regenerated by 400 J. Yu et al 19 analyzed the feasibility of the active energy-regenerative suspension, and the simulation results showed that, when the vehicle drove at 20 m/s on a C level road for 20 s, the energy dissipated by the passive suspension was 651 kJ.…”

Section: Introductionmentioning

confidence: 99%

Design and experimental study of the energy-regenerative circuit of a hybrid vehicle suspension

et al. 2019

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This article concerns a hybrid vehicle suspension system that can regenerate energy from vibrations. To further improve the performance of the hybrid vehicle suspension system, the design of the energy-regenerative circuit is investigated. First, the force tests of the linear motor used in the hybrid vehicle suspension were carried out, and the key parameters of the linear motor were obtained. Then, the selection procedures of the protective resistance, inductance, and initial terminal voltage of the super capacitor were discussed. These aforementioned parameters' values were determined by considering the impact of the hybrid suspension on the dynamic performance indexes and the energy-regenerative efficiency. Simulations showed that, in comparison to the original hybrid suspension system, the designed hybrid suspension effectively improved the energy-regenerative efficiency, and that the dynamic performance indexes of the suspension were synchronously improved. Given the result of the simulation analysis, which were validated by bench tests, it is shown that the optimized energy-regenerative circuit presents an enhanced regeneration efficiency, with an improvement of nearly 13% compared to the original suspension system.

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“…Nowadays a number of informative studies and developments have been presented in this area [15][16][17]. Most reported references have investigated hybrid PE and EM energy harvesters through numerical analysis, finite element simulation and experimental methods [18][19][20][21][22]. Only a few researchers have established mathematical models for hybrid PE and EM energy harvester designs [23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Nonlinear Hybrid Piezoelectric and Electromagnetic Energy Harvesting Driven by Colored Excitation

et al. 2018

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Abstract:It is well known that when excited by a stochastic base acceleration, the power absorbed by a nonlinear Duffing-type piezoelectric (PE) or electromagnetic (EM) energy harvester might not be increased effectively compared to a linear one. When intentionally introducing nonlinear magnetic forces into a doubly-clamped hybrid PE and EM energy harvester subjected to narrow-band (colored) excitation however, the power output could be improved to a much higher value. Also, in comparison with the typical nonlinear PE or EM generator, the influence of load and excitation parameters on the performance of a nonlinear hybrid energy harvester under colored excitation has been proven rather different as well. These results are derived analytically by solving the Fokker-Planck (FP) equation, and numerically by Monte Carlo (MC) simulations for validation. Besides, for a nonlinear hybrid configuration excited by colored noise approaching white Gaussian excitation, theoretical output characteristics are discussed and compared with results from a reported theory for white Gaussian excited case, which again verifies the feasibility of the theoretical analysis.

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A new energy harvester using a piezoelectric and suspension electromagnetic mechanism

Cited by 39 publications

References 19 publications

A Novel Tunable Multi-Frequency Hybrid Vibration Energy Harvester Using Piezoelectric and Electromagnetic Conversion Mechanisms

A Novel Tunable Multi-Frequency Hybrid Vibration Energy Harvester Using Piezoelectric and Electromagnetic Conversion Mechanisms

Design and experimental study of the energy-regenerative circuit of a hybrid vehicle suspension

Nonlinear Hybrid Piezoelectric and Electromagnetic Energy Harvesting Driven by Colored Excitation

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