Design and Analysis of a Novel Adjustable SVAWT for Wind Energy Harvesting in New Energy Vehicle

Abstract

The new energy vehicle is a robust measure to solve the problem of global warming. However, the new energy vehicle generally has the disadvantages of short mileage and difficulty in finding public chargers. The combination of wind energy harvest and new energy vehicle can be conducive to the promotion of the new energy vehicle. This paper proposes a novel adjustable Savonius vertical axis wind turbine (SVAWT). It contains three parts: an energy absorption module, an energy recovery module, and an energy conversion module. The energy absorption module includes four blades with staggered distribution in two layers. The overlap ratio of the blades can be adjusted by the wind speed, which can ensure the SVAWT has a higher energy transfer efficiency. The energy recovery module adjusts the overlap ratio of the blades without interruption by utilizing the self-rotation and the orbital revolution of the gears. The energy conversion module converts mechanical energy into electric energy and supplies power for the vehicle after adjustment by the voltage regulator module. Based on actual operating data, it can be found that the variation trend of power of the blades absorbing is consistent with wind speed and increases with the wind speed. Under four actual operating conditions, the root mean square value of the blades absorbing power are 7.0 W, 7.1 W, 3.9 W, and 5.1 W, respectively. These results reveal that the proposed novel adjustable SVAWT has high recovery power potential and can provide a valuable solution to the practical applications of wind energy harvesting.

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“…Zhao et al. 284 developed adjustable SWTs, installed close to the vehicle’s front grille, which directly powered low-energy devices on the vehicle, thereby demonstrating significant performance retention.…”

“… 283 2021 Horizontal EMG 0.36 m 25 m/s 100 W Car front Zhao et al. 284 2022 Savonius MATLAB 120 mm 12 m/s 7.1 W Car front Cao et al. 287 2021 Savonius EMG & PEG 136 mm 12 m/s 2.19 mW Cross-sea bridge Cao et al.…”

An Inertial Energy Harvester Based on Noncontact Magnetic Force for Self‐Powered Applications in New Energy Buses

“…During the vibration of the system, the internal structure damping is generated. There is the meshing connection between the gears; the meshing damping c l of the two meshing gears is calculated by [35]…”

“…During the vibration of the system, the internal structure damping is generated. There is the meshing connection between the gears; the meshing damping of the two meshing gears is calculated by [ 35 ] where ξ is the damping ratio, is the mean value of the stiffness of the meshing gears, and are the radius and rotary inertia of the gear p , and and are the radius and rotary inertia of the gear q .…”