Receiver Resonant Frequency Adaptive-Tracking in Wireless Power Transfer Systems Using Primary Variable Capacitors

• Published in: IEEE journal of emerging and selected topics in industrial electronics (Print) pp. 1 - 9
• Main Authors: Liu, Chang, Han, Wei, Yan, Guangyu, Zhang, Bowang, Li, Chunlin
• Format: Journal Article
• Language: English
• Published: IEEE 04.07.2025
• Subjects: Capacitance; Capacitors; Coils; detuning tolerance; frequency tracking; parameter identification; Reactive power; Receivers; Resistance; Resonant frequency; Tuning; Wireless power transfer

Parameter variations within the resonant network of wireless power transfer (WPT) systems can cause drift in the resonant frequency, leading to a detuned system that requires higher power capacity and experiences reduced transfer efficiency. To address this issue, this paper presents an adaptive onl...