Design and Optimization of a Tubular Linear Electromagnetic Vibration Energy Harvester

Tang, Xiudong; Teng, Lin; Zuo, Lei

doi:10.1109/tmech.2013.2249666

Cited by 142 publications

(76 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At the same time, the energy dissipated in the damper, could be more accurately harvested than in classical energy harvesters. Compared to research by Tang et al, where the damping coefficient was observed as 1680-2142 Ns/m [43], which is in good agreement with our research. The coefficients of damping dependencies, over time, for roads of different roughness, with optimized damping laws, are shown in Figure 8.…”

Section: Definition Unitssupporting

confidence: 93%

Evaluation of Comfort Level and Harvested Energy in the Vehicle Using Controlled Damping

et al. 2017

View full text Add to dashboard Cite

Shock absorbers allow the damping of suspension vibrations, by dissipating kinetic energy. This energy theoretically can be harvested; however, practical solutions are not easily obtainable. This paper is dedicated to analyzing and evaluating the vibration energy in a vehicle's suspension that is generated by road excitations. Also, it estimates the possible amount of harvested energy required to diminish accelerations of the vehicle body, the driver, or the passenger center of mass. The control of damper is realized by optimizing the best damping coefficient for different road roughness. Analytical results, obtained from the proposed dynamic model of the car, were compared with experimental data, showing a good coherence between them. These results allow us to evaluate the amount of energy circulating within shock absorbers and give information about the amount of the possible harvested energy. There is a very good relationship between energy needed for control and gained energy.

show abstract

Section: Definition Unitssupporting

confidence: 93%

Evaluation of Comfort Level and Harvested Energy in the Vehicle Using Controlled Damping

et al. 2017

View full text Add to dashboard Cite

show abstract

“…The current ( 0 ) through the external resistor is recorded in the experiment, therefore, harvestable power can be calculated by: Figure 29 shows the harvestable power when the proposed seat suspension is controlled. The maximum power can be over 25 W with short period of time, and the RMS power is 1.492 W. In this paper, the rotary motor is applied to harvest energy, which can generate more power than the method with linear motors [20,22] when the devices have same volumes. The variable damping seat suspension is controlled by PWM signal whose energy consumption can be ignored when compared with the energy harvesting potential.…”

Section: Random Vibration Testmentioning

confidence: 99%

“…When the rotary motor is used, the [18,19]. The linear generator can directly harvest the vibration energy [20][21][22], but, with a given space, the rotary one can generate more power [23]. For their promising prospect, the study of regeneration suspensions should be combined with the energy harvesting and vibration control [24].…”

Section: Introductionmentioning

confidence: 99%

An Energy Saving Variable Damping Seat Suspension System With Regeneration Capability

Ning

Sun

et al. 2018

IEEE Trans. Ind. Electron.

View full text Add to dashboard Cite

In this paper, an energy saving variable damping seat suspension system is designed, manufactured and validated. A controllable electromagnetic damper (EMD), which consists of a permanent magnet synchronous motor (PMSM), a 3-phase rectifier, a metal-oxide-semiconductor field-effect transistor (MOSFET) switch module, an external resistor, a diode, and a capacitor, is designed and tested firstly. The EMD is integrated with a planetary gearbox to amplify its torque output, and both of them are installed on the centre of the scissors structure of a seat suspension. The EMD's damping property can be controlled by exerting pulse width modulation (PWM) signal with different duty cycles on the MOSFET switch module. By analysing the EMD test results and the seat suspension's kinematic, the controllable damping of the EMD is derived from 115.68 Ns/m to 669.74 Ns/m. A control method for vibration isolation is proposed considering that the generated damping force is reverse to the suspension's relative velocity, and its value is related to both the damping coefficient and the relative velocity, thus the desired control force can be partially achieved by the variable damper. The proposed variable damping seat suspension and its controller are validated on a 6-degree of freedom (6-DOF) vibration platform in both frequency domain and time domain. The test results show that the controlled variable damping seat suspension has better performance in vibration isolation than the proposed seat with highest and lowest damping, and the conventional passive one. In the meantime, the RMS value of the system harvestable power is 1.492 W, and the power consumption of the PWM control signal is very few. Therefore, this variable damping seat suspension can improve the ride comfort with ignorable energy cost.

show abstract

“…Vibration impact of the vehicle body is converted into thermal energy and then dissipated by dampers, which greatly reduces utilization of energy generated by the engine [1][2][3][4]. Kinetic and potential energy of the vehicle body in vertical direction can be converted into electrical energy by power generation devices and then is utilized in the regenerative suspension system [5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Research into the Effect of Supercapacitor Terminal Voltage on Regenerative Suspension Energy-Regeneration and Dynamic Performance

Wang

Ding

et al. 2017

Shock and Vibration

View full text Add to dashboard Cite

To study the effect of supercapacitor initial terminal voltage on the regenerative and semiactive suspension energy-regeneration and dynamic performance, firstly, the relationship between supercapacitor terminal voltage and linear motor electromagnetic damping force and that between supercapacitor terminal voltage and recycled energy by the supercapacitor in one single switching period were both analyzed. The result shows that the linear motor electromagnetic damping force is irrelevant to the supercapacitor terminal voltage, and the recycled energy by the supercapacitor reaches the maximum when initial terminal voltage of the supercapacitor equals output terminal voltage of the linear motor. Then, performances of system dynamics and energy-regeneration were studied as the supercapacitor initial terminal voltage varied in situations of B level and C level road. The result showed that recycled energy by the supercapacitor increased at first and then decreased while the dynamic performance had no obvious change. On the basis of previous study, a mode-switching control strategy of supercapacitor for the regenerative and semiactive suspension system was proposed, and the mode-switching rule was built. According to simulation and experiment results, the system energyregeneration efficiency can be increased by utilizing the control strategy without influencing suspension dynamic performance, which is highly valuable to practical engineering.

show abstract

Design and Optimization of a Tubular Linear Electromagnetic Vibration Energy Harvester

Cited by 142 publications

References 18 publications

Evaluation of Comfort Level and Harvested Energy in the Vehicle Using Controlled Damping

Evaluation of Comfort Level and Harvested Energy in the Vehicle Using Controlled Damping

An Energy Saving Variable Damping Seat Suspension System With Regeneration Capability

Research into the Effect of Supercapacitor Terminal Voltage on Regenerative Suspension Energy-Regeneration and Dynamic Performance

Contact Info

Product

Resources

About