Abstract
This article proposes an enhanced wireless power transfer (WPT) for automated guided vehicles (AGVs) considering disturbance suppression. The study is motivated because existent resonant methods may induce unexpected disturbances, affecting the efficiency of power transfer and disturbing the voltage gain. This paper is, therefore, focused on the suppression of disturbances as well as the realization of an effective wireless power transmission. Moreover, by considering that the output voltage is often affected by misaligned charging, the system design has included the gain-frequency control along with an early detection of coil misalignment. It is anticipated that through this proposed approach, the constant-voltage output can be achieved while the efficiency of power transfer is improved as well. To validate the practicality of this approach, the hardware prototype is tested with a significant decrement of disturbance interference during the wireless power transmission, supporting the feasibility of the method for AGV charging applications.
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