Repositorio
Institucional

Hu, Hongsheng

Chen, Fengwei

Zhao, Lei

Padilla, Arturo

Hou, Jie

A Linear Parameter-Varying Hammerstein Model for Dynamic Modeling of WPT Systems

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC

IEEE TRANSACTIONS ON POWER ELECTRONICS

en

To better handle nonlinearities in the dynamic modeling of wireless power transfer systems, a linear parameter-varying (LPV) Hammerstein model is derived, along with a method to identify the structure and estimate the parameters of the model from the experimental data. Precisely, the proposed modeling method identifies the model structure by reference to the specified identification criteria and the circuit topology of the system, and estimates the unknown model parameters using sampled input-output data. Compared with other data-driven models, such as linear models that are only accurate at an operation point, and Hammerstein models that only cope with the inverter nonlinearity, the proposed LPV Hammerstein model is able to handle both inverter and rectifier nonlinearities, as well as load and coupling variation, thus providing a more accurate description into the system dynamics. In addition, the LPV Hammerstein model has several merits compared with the conventional circuit-theory models: it does not necessarily require any circuit component parameter, and the resulting model is simple yet accurate-a first- or second-order model can provide a fairly good prediction of the system output in a quite wide operation range. The simulation and experimental results are included to confirm the effectiveness and superiority of the proposed model.

2023

artículo original

10.1109/TPEL.2023.3306155

PDF

Coupling variation

dynamic modeling

linear parameter-varying (LPV) model

load variation

model reduction

wireless power transfer (WPT)

Ingeniería

Variación del acoplamiento

modelado dinámico

modelo lineal de variación de parámetros (LPV)

variación de carga

reducción del modelo

transferencia de energía inalámbrica (WPT)

16230.0

16244

artículo original

versión publicada

restringido

restringido

WOS:001095310200120

0885-8993

Ingeniería

NSFC 62073246

NSFC 52207002

NSFC 52207003

NSFC 61903057

CPSF 2022M720556

CPSF 2022MD713688