Simple Identification of Reactive AC-side Component Values in Resonant Inverters Driving Series RLC Loads in High-Current Applications

It is well-known that in high-current high-frequency resonant power conversion applications, values of components may differ under load from the values in rest. Consequently, it would be beneficial to develop a simple yet accurate methodology for extracting components values from experimental data. The paper proposes such a procedure, allowing to quantify the value of parasitic inductance typically imposed by relatively long cables in addition to actual load inductance and resonant capacitance under load. Simulations and experiments are carried out to support the proposed methodology.