Paper Info
Title
Improved Dynamic Ripple-Based Modeling Technique for a Toroid Inductor in PFC Rectifiers
Abstract
In order to precisely predict the PFC choke inductance and its losses, a dynamic ripple-based inductor modeling technique is proposed considering the real-time current ripple over each switching cycle. The realistic inductor model is synthesized considering the operation temperature, instantaneous current magnitude, and <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$\mathbf{flux}$</tex> density. Three factors are investigated: (i) the non-linearity of the inductor material; (ii) the switching frequency components in the input current; and (iii) the time variation of the duty cycle. Thus, a function to accurately compute real-time inductance is obtained. To validate the proposed model, simulation studies and experiments are conducted using a single-phase totem-pole PFC rectifier. The theoretical prediction exhibits good agreement with the simulation result with 10% error. It is experimentally verified that the real-time measured inductance matches with the model-predicted inductance at 1 kW output power.
Year
DOI
Venue
2022
10.1109/ISIE51582.2022.9831537
2022 IEEE 31st International Symposium on Industrial Electronics (ISIE)
Keywords
DocType
ISSN
Inductor,modeling,current ripple,PFC
Conference
2163-5137
ISBN
Citations 
PageRank 
978-1-6654-8241-7
0
0.34
References 
Authors
0
4
Name
Order
Citations
PageRank
Shenli Zou100.34
Chanaka Singhabahu200.34
Jianfei Chen300.34
Alireza Khaligh442650.50