TY - GEN
T1 - A Model for Stability Study of PFC Power Supplies
AU - Chu, Grace
AU - Tse, Chi K.
AU - Wong, Siu Chung
PY - 2007/6
Y1 - 2007/6
N2 - Typically a power-factor-correction power supply consists of two stages, one responsible for power factor correction and the other for voltage regulation. In this paper, we propose to use a constant power sink to represent the voltage regulating stage, resulting in an analytically tractable model that is able to predict the period-doubled oscillations at line frequency which are not detectable by other conventional models. Using a generalized averaging approach, we investigate the low-frequency dynamics and derive closed-form stability conditions which accurately locate the stability boundaries on selected parameter planes. The model can be conveniently used to evaluate the performance of power-factor-correction power supplies, such as harmonic distortion and power factor. Experimental results are presented to verify the model. ©2007 IEEE.
AB - Typically a power-factor-correction power supply consists of two stages, one responsible for power factor correction and the other for voltage regulation. In this paper, we propose to use a constant power sink to represent the voltage regulating stage, resulting in an analytically tractable model that is able to predict the period-doubled oscillations at line frequency which are not detectable by other conventional models. Using a generalized averaging approach, we investigate the low-frequency dynamics and derive closed-form stability conditions which accurately locate the stability boundaries on selected parameter planes. The model can be conveniently used to evaluate the performance of power-factor-correction power supplies, such as harmonic distortion and power factor. Experimental results are presented to verify the model. ©2007 IEEE.
UR - https://www.scopus.com/pages/publications/48349139348
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-48349139348&origin=recordpage
U2 - 10.1109/PESC.2007.4342181
DO - 10.1109/PESC.2007.4342181
M3 - RGC 32 - Refereed conference paper (with host publication)
SN - 1424406552
SN - 9781424406555
SN - 9781424406548
T3 - PESC Record - IEEE Annual Power Electronics Specialists Conference
SP - 1298
EP - 1303
BT - PESC 07 - IEEE 38th Annual Power Electronics Specialists Conference
T2 - 38th IEEE Annual Power Electronics Specialists Conference (PESC07)
Y2 - 17 June 2007 through 21 June 2007
ER -