Work

Control-oriented closed-loop identification and input design in a wireless power transfer system

Year: 2025

Type: article

Abstract: This study proposes a closed-loop identification scheme for a wireless power transfer (WPT) system that estimates the actual system model and uses it to design and update the controller. Due to factors such as coil misalignment, unknown loads, and capacitor aging, the initial controller may not be suitable for the actual WPT devices. Therefore, this paper focuses on estimating the model during closed-loop operation and updating the controller when performance requirements are not satisfied. To minimize disturbances to normal operation while achieving sufficient modeling accuracy for controller design, this study proposes a method for designing the input excitation signal to minimize output voltage fluctuations. Additionally, a robust controller design method based on the estimated model set is introduced to enhance closed-loop control performance. Experimental prototypes demonstrate the effectiveness of the identification and controller switching scheme.

Source: Wireless Power Transfer

DOI: 10.48130/wpt-0025-0006

Authors: Shuaiqi Li, Qijun Deng, Zhifan Li, Wenshan Hu

Institution: Wuhan University

Language: English

Topic: Wireless Power Transfer Systems

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDGs: Industry, innovation and infrastructure, Affordable and clean energy

Open Access status: diamond

Funder: National Natural Science Foundation of China