Dynamic-Balancing Robust Current Control for Wireless Drone-in-Flight Charging

Graph-Based Modeling and Optimization of WPT Systems for EVs

“…The approach in Section 3.1 can be modified to account for multiple secondary pads. Some high-power WPT applications use multiple secondary pads to maximize power transfer, or some drone applications have multiple disparate secondary coils [12]. There are many ways to define an objective function, weighting power transfer to a given coil or optimizing for total power transfer.…”

“…This parasitic coupling is always present when there are multiple primaries or secondaries, and while it is generally ignored, its effects can be harmful, negligible, or beneficial. Some emerging WPT applications make use of a WPT network with multiple primaries and secondaries, whether that is to extend the WPT range in dynamic WPT (DWPT), transfer power to various targets, provide three-phase power, or increase the WPT range [4,[11][12][13][14]. However, none of these works aim to provide a generalized framework for modeling and exploiting parasitic coupling.…”

“…The work in [11] uses changes in the parasitic primary-primary coupling to detect an approaching vehicle, but power is not transferred along the primary-primary link. In [12,13], multiple primaries and secondaries are considered, but primary-primary coupling and secondary-secondary coupling are not considered. Similarly, the work in [15] presents a harmonics-based scheme to transmit power from a single transmitter to multiple receivers, but the power transmission from the primary to each secondary is designed to be independent.…”

“…However, there is still a single transmitter coil and a single receiver coil. Other work estimates the existence or position of multiple secondaries, but using parasitic coupling to maximize power transfer is outside the scope of [12,16,17]. The parasitic couplings in a system with either multiple transmitter coils or multiple receiver coils are also considered in [18]; however, that approach only considers either multiple receiver coils or multiple transmitter coils, but not both simultaneously.…”

Experimental Study on Vibration Fatigue Behavior of Aircraft Aluminum Alloy 7050

“…In the aerospace field, many machineries, transportations and structural components have to be subjected to complex dynamic stress as the industry quickly develops [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 ]. What is most important is that lots of structures and mechanical components are constantly working in a vibrating state or even in the resonant condition, and this is particularly the case in the aeronautical field.…”