High Efficiency Resonant Coil Design for Wireless Energy Transmission System

Author(s):  
Wei Yao ◽  
Yunhu Yang ◽  
Jiaxing Du ◽  
Wei Wang ◽  
Chen Li ◽  
...  
Energies ◽  
2022 ◽  
Vol 15 (2) ◽  
pp. 576
Author(s):  
Amir Ehsan Kianfar ◽  
Mrityunjaya Sherikar ◽  
Andre Gilerson ◽  
Marcin Skora ◽  
Krzysztof Stankiewicz ◽  
...  

Suspended monorails are a common mode of transportation for materials and personnel in underground mines. The goal of the EU-funded project “Innovative High Efficiency Power System for Machines and Devices, Increasing the Level of Work Safety in Underground Mining Excavations (HEETII)” is to introduce a single-wire energy transmission system combined with a capacitive-coupling-based wireless transmission system to power the suspended tractor, along with a monitoring system that will monitor the energy network and additional environmental parameters of the mine. Additionally, the monitoring system acts as the wireless communication backbone, allowing for data transmission to surface headquarters, where the data are processed and logged in a central database. This enables operators to detect and take preemptive measures to prevent potential hazards in the mine, improving the overall efficiency of the energy transmission system. This paper describes the additional considerations required for electrical systems in underground mines with potentially explosive atmospheres, as well as the design of the energy transmission system and the monitoring system.


2021 ◽  
Vol 3 (8) ◽  
Author(s):  
Fengxia Lu ◽  
Xuechen Cao ◽  
Weiping Liu

AbstractA 16-degree-of-freedom dynamic model for the load contact analysis of a double helical gear considering sliding friction is established. The dynamic equation is solved by the Runge–Kutta method to obtain the vibration displacement. The method combines the friction coefficient model based on the elastohydrodynamic lubrication theory with the dynamic model, which provides a theoretical basis for the calculation of the power loss of the transmission system. Moreover, the sensitivity analysis of the parameters that affect the transmission efficiency is carried out, and an optimization method of meshing efficiency is proposed without reducing the bending strength of the gears. This method can directly guide the design of the double helical gear transmission system.


2012 ◽  
Vol 48 (11) ◽  
pp. 4030-4033 ◽  
Author(s):  
Jun Zhao ◽  
Guizhi Xu ◽  
Chao Zhang ◽  
Yang Li ◽  
Xian Zhang ◽  
...  

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