A novel kinetic energy harvester using vibration rectification mechanism for self-powered applications in railway

Wu, Xiaoping; Qi, Lingfei; Zhang, Tingsheng; Zhang, Zutao; Yuan, Yanping; Liu, Yujie

doi:10.1016/j.enconman.2020.113720

Cited by 36 publications

(20 citation statements)

References 33 publications

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“…Previous VEH technologies on the track-side require additional devices to acquire vibration energy. This year, Wu et al (2021) proposed a line-side VEH with nut-screw vibration rectification mechanism based on an existing Dowty retarder, as presented in Figure 13. The proposed energy harvester is embedded in the retarder, which not only can provide braking assistance for the train but also can harvest kinetic energy to achieve the self-powered monitoring of the retarder.…”

Section: Ll Open Accessmentioning

confidence: 99%

“…Grid power supply has inevitable energy loss due to long-distance power transmission. According to the literature (Wu et al, 2021;Gao et al, 2018), the parameters of the sensors used for railway environmental monitoring are listed…”

Section: Applications Of the Train-induced Vibration Energy Harvestingmentioning

confidence: 99%

“…In addition, the author made an assessment finding that, if all the traditional retarders in China are replaced with regenerative retarders, the total annual power generation will reach 360 MWh.

Figure 13 Dowty retarder-based kinetic energy harvester on line side (Reprinted [adapted] with permission from Wu et al., 2021 . Copyright [2018] Elsevier.)…”

Section: Energy Harvesting Mechanism For Train-induced Vibrationmentioning

confidence: 99%

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A review of vibration energy harvesting in rail transportation field

Pan

et al. 2022

iScience

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Section: Ll Open Accessmentioning

confidence: 99%

Section: Applications Of the Train-induced Vibration Energy Harvestingmentioning

confidence: 99%

Figure 13 Dowty retarder-based kinetic energy harvester on line side (Reprinted [adapted] with permission from Wu et al., 2021 . Copyright [2018] Elsevier.)…”

Section: Energy Harvesting Mechanism For Train-induced Vibrationmentioning

confidence: 99%

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A review of vibration energy harvesting in rail transportation field

Pan

et al. 2022

iScience

Self Cite

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“…On the other hand, the kinetic and potential energies are the mechanical energy of an object. Few examples of kinetic mechanical energy are energy produced by light waves, the energy produced by electricity, and energy produced by sound waves [ 18 , 19 , 20 ]. The main disadvantage of mechanical energy is its safety issues and difficulty to transmit energy over long distances [ 21 ].…”

Section: Introductionmentioning

confidence: 99%

Review on Comparison of Different Energy Storage Technologies Used in Micro-Energy Harvesting, WSNs, Low-Cost Microelectronic Devices: Challenges and Recommendations

Riaz

Sarker

Saad

et al. 2021

Sensors

134

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This paper reviews energy storage systems, in general, and for specific applications in low-cost micro-energy harvesting (MEH) systems, low-cost microelectronic devices, and wireless sensor networks (WSNs). With the development of electronic gadgets, low-cost microelectronic devices and WSNs, the need for an efficient, light and reliable energy storage device is increased. The current energy storage systems (ESS) have the disadvantages of self-discharging, energy density, life cycles, and cost. The ambient energy resources are the best option as an energy source, but the main challenge in harvesting energy from ambient sources is the instability of the source of energy. Due to the explosion of lithium batteries in many cases, and the pros associated with them, the design of an efficient device, which is more reliable and efficient than conventional batteries, is important. This review paper focused on the issues of the reliability and performance of electrical ESS, and, especially, discussed the technical challenges and suggested solutions for ESS (batteries, supercapacitors, and for a hybrid combination of supercapacitors and batteries) in detail. Nowadays, the main market of batteries is WSNs, but in the last decade, the world’s attention has turned toward supercapacitors as a good alternative of batteries. The main advantages of supercapacitors are their light weight, volume, greater life cycle, turbo charging/discharging, high energy density and power density, low cost, easy maintenance, and no pollution. This study reviews supercapacitors as a better alternative of batteries in low-cost electronic devices, WSNs, and MEH systems.

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“…Piezoelectric energy harvesting (PEH) is the most popular energy-harvesting concept exploiting ambient kinetic energy through the vibration of piezoelectric transducers. Kinetic energy exists in many applications of the built environment such as engines, heavy equipment, highways, and railways [ 5 ]. Autonomous condition monitoring of rotating machinery is a possible application of PEHs [ 6 , 7 ], as well as health monitoring of aerospace structures [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

On the Efficiency of a Piezoelectric Energy Harvester under Combined Aeroelastic and Base Excitation

Stamatellou

Kalfas

2021

Micromachines

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A flutter-type, nonlinear piezoelectric energy harvester was tested in various combinations of aerodynamic and harmonic base excitation to study its power output and efficiency. The commercial polyvinylidene fluoride film transducer LDT1-028K was used in 33 excitation mode. The aerodynamic excitation was created by a centrifugal fan and the base excitation by a cone speaker. The excitations were produced by varying independently the mean airflow velocity and the frequency of base vibration. A capacitive load was used to store the harvested energy. A line laser was employed along with long exposure photography and high-speed video, for the visualization of the piezo film’s mode shapes and the measurement of maximum tip deflection. The harvested power was mapped along with the maximum tip deflection of the piezo-film, and a process of optimally combining the two excitation sources for maximum power harvesting is demonstrated. The energy conversion efficiency is defined by means of electrical power output divided by the elastic strain energy rate of change during oscillations. The efficiency was mapped and correlated with resonance conditions and results from other studies. It was observed that the conversion efficiency is related to the phase difference between excitation and response and tends to decrease as the excitation frequency rises.

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A novel kinetic energy harvester using vibration rectification mechanism for self-powered applications in railway

Cited by 36 publications

References 33 publications

A review of vibration energy harvesting in rail transportation field

A review of vibration energy harvesting in rail transportation field

Review on Comparison of Different Energy Storage Technologies Used in Micro-Energy Harvesting, WSNs, Low-Cost Microelectronic Devices: Challenges and Recommendations

On the Efficiency of a Piezoelectric Energy Harvester under Combined Aeroelastic and Base Excitation

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