Abstract

The transmitter and receiver for wireless power transfer (WPT) need information interaction to achieve optimal efficiency if the mutual inductance and load are movable. This paper proposes a receiver parameter estimation system based on the digital-twin concept aiming for condition monitoring of wireless power transfer (WPT). An application for a series-series WPT system is demonstrated with the digital replica and physical experimental. A hybrid optimization algorithm based on Particle Swarm Optimization and Simulated Annealing (PSO-GA) is applied to estimate mutual Inductance and load based on the voltage and current of the transmitting coil from both the digital twin and the physical prototype. This article about measurements and estimates on the receiving end is collated here.

Instructions:

Table lists the key information during the experiment, including the receiver current amplitude and are the amplitude and phase of the coil current at the transmitter side, is the mutual inductance, and is the output power. and are the estimated mutual inductance and receiver resistance. Only a small deviation between the

and measured was observed, indicating that the mutual inductance can be successfully estimated. However, the is far from the actual load because of the difference between the equivalent load on the left side of the rectifier bridge and actual load , Furthermore, the equivalent resistance caused by the diode voltage drop cannot be ignored despite the low power.

Datasets

Standard Dataset

Wireless power transfer digital twin data sets

Abstract

Dataset Files

QUESTIONS?