Paper Info
Title
On the Minimum DC Link Capacitance in Practical PFC Rectifiers Considering THD Requirements and Load Transients
Abstract
The article presents the analytical derivation of the minimum dc link capacitance in single-phase front ends with active power factor correction (PFC) without hold-up time requirements. Such systems typically employ boost-type rectifiers; operate under restricted total harmonic distortion (THD) of the grid-side current. Moreover, PFC rectifiers must be capable of tolerating step-like zero-to-rated load power variations. It is well known that these two constraints contradict each other, posing nontrivial design challenges. The revealed value of minimum capacitance is expressed by an explicit function of grid voltage and frequency, converter rated power, dc link voltage reference, and grid current THD and voltage loop phase margin set points. Experimental results validate the proposed methodology, closely matching corresponding analytical predictions.
Year
DOI
Venue
2022
10.1109/TIE.2021.3118385
IEEE Transactions on Industrial Electronics
Keywords
DocType
Volume
DC link capacitance,power factor correction (PFC),total harmonic distortion (THD),voltage control
Journal
69
Issue
ISSN
Citations 
11
0278-0046
0
PageRank 
References 
Authors
0.34
9
2
Name
Order
Citations
PageRank
Pavel Strajnikov100.34
ALON KUPERMAN21919.41