Prototype for Wireless Power Supply In-Wheel PMSM Considering Load Conditions
Received: 26 January 2025 | Revised: 23 February 2025 | Accepted: 27 February 2025 | Online: 4 June 2025
Corresponding author: Ali Jafer Mahdi
Abstract
This research presents the practical implementation of a Wireless Power Transfer (WPT) system for supplying an in-wheel Permanent Magnet Synchronous Motor (PMSM). The proposed system is designed to transfer approximately 250 W using a resonant circuit, with power delivery and motor performance regulated through DC-DC converters. The system is tested under various load conditions, including quarter-load, half-load, and full-load, ensuring stable operational speed and efficient performance in all cases. Key control parameters, including the duty cycle of the DC-DC converters and the system’s resonant frequency, were examined for their impact on performance. Fine-tuning these parameters enabled efficient power transfer, reduced energy losses, and ensured system stability during dynamic transitions, particularly from half to full load. Furthermore, the voltage and current waveforms are presented and conformed to meet standard specifications, ensuring the system operates reliably and within acceptable limits. Practical experiments demonstrated the system’s ability to achieve a measured efficiency of 94% at an air-gap distance of 7.5 cm under full load conditions. This highlights the system’s potential for real-world applications, such as In-Wheel Motors (IWM) for Electric Vehicles (EVs), where reliability, efficiency, and stability are critical for overcoming challenges like power interruptions caused by vibrations.
Keywords:
wireless power transfer, Inductive Wireless Power Transmission (IWPT), electric vehicles, DC-DC power convertersDownloads
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Copyright (c) 2025 Ali Jafer Mahdi, Haider Hameed Hussein, Ali Mohammed Ridha, Mohammed Jamal Mohammed, Hussban Abood Saber, Mustafa Habeeb Chyad
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