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Discrete-Time Modelling to Determine the Possible Operation Points of Incomplete-Resonance Wireless Power Transfer System

The Independent energy injection and free resonance (IEIFR) system is a type of incomplete-resonance wireless power transfer system, which has a great tolerance with control strategy. This article uses a discrete-time modelling method to determine its all possible and rational operation points. This method samples the state variables with the switching cycle and once the system achieves steady-state, the mapping between those samples is a fixed point mapping. Combined with the known mode analysis, the rationality of those possible operation points can be verified. After the experiment verification, this method is helpful to analysis the incomplete-resonance wireless power transfer system.