TY - GEN
T1 - A Non-Ideal SEPIC DCM Modeling for LED Lighting Applications
AU - Bertoldi, Bruno
AU - Junior, Marcio Moura Bridon
AU - Dallrasta, Matheus Schramm
AU - Mocellini, Marcos Paulo
AU - Mateo Daniel Roig, Greidanus
AU - Kirsten, Andre Luis
AU - Heldwein, Marcelo Lobo
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/7/2
Y1 - 2018/7/2
N2 - The life cycle of the Light Emitting Diodes (LEDs) requires a robust and reliable driver since the components may have influence in the lifetime of the lighting system, which is an undesirable situation. In addition, LED strings can be sold for different loads possibilities. This requires the converter components to be designed in a generalized and oversized way. As a consequence, sizable components lead to increased losses mainly in the semiconductors. In the last ones, the forward voltage drops and resistances typically increase relatively to their voltage blocking capacity. This work presents a steady state and dynamic modeling of a SEPIC converter operating in Discontinuous Conduction Mode (DCM) for LED lighting applications, considering non-idealities. Simulations and Hardware-in-the-Loop results are presented to validate the derived dynamic and steady-state models as well as to present a DCM PFC SEPIC rectifier application driving a 72 V-100 W LED lamp from a 220 V-60 Hz grid.
AB - The life cycle of the Light Emitting Diodes (LEDs) requires a robust and reliable driver since the components may have influence in the lifetime of the lighting system, which is an undesirable situation. In addition, LED strings can be sold for different loads possibilities. This requires the converter components to be designed in a generalized and oversized way. As a consequence, sizable components lead to increased losses mainly in the semiconductors. In the last ones, the forward voltage drops and resistances typically increase relatively to their voltage blocking capacity. This work presents a steady state and dynamic modeling of a SEPIC converter operating in Discontinuous Conduction Mode (DCM) for LED lighting applications, considering non-idealities. Simulations and Hardware-in-the-Loop results are presented to validate the derived dynamic and steady-state models as well as to present a DCM PFC SEPIC rectifier application driving a 72 V-100 W LED lamp from a 220 V-60 Hz grid.
KW - Discontinuous conduction mode
KW - Led lighting
KW - Non-ideal modeling
KW - Power factor correction.
KW - SEPIC
UR - http://www.scopus.com/inward/record.url?scp=85062850407&partnerID=8YFLogxK
U2 - 10.1109/SPEC.2018.8635896
DO - 10.1109/SPEC.2018.8635896
M3 - Conference contribution
AN - SCOPUS:85062850407
T3 - 2018 IEEE 4th Southern Power Electronics Conference, SPEC 2018
BT - 2018 IEEE 4th Southern Power Electronics Conference, SPEC 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 4th IEEE Southern Power Electronics Conference, SPEC 2018
Y2 - 10 December 2018 through 13 December 2018
ER -