TY - GEN
T1 - A high power density power factor correction front end based on a 7-level flying capacitor multilevel converter
AU - Qin, Shibin
AU - Lei, Yutian
AU - Moon, Intae
AU - Haken, Carl
AU - Bian, Ethan
AU - Saathoff, Erik
AU - Chung, Wonho
AU - Chou, Derek
AU - Pilawa Podgurski, Robert Carl Nikolai
PY - 2016
Y1 - 2016
N2 - This paper presents a power factor correction (PFC) front end based on a 7-level flying capacitor multilevel (FCML) boost converter. The operation of the FCML converter is introduced to illustrate its benefits in terms of efficiency and power density. Compared to conventional 2-level boost converter design, the proposed 7-level FCML converter features the use of low-voltage-rating transistors and a high effective switching frequency. These characteristics of FCML converter lead to drastic reduction in the filter inductor size while maintaining high efficiency and small heat sink volume, and thus significantly improve the power density. On the other hand, the small inductance imposes unique challenges in the implementation of the PFC control. In this work, a digital control implementation is presented to overcome these challenges. A hardware prototype is designed for universal AC input (90 Vac to 265 Vac), 400 V DC output and 1.3 kW power rating, and its performance has been experimentally demonstrated.
AB - This paper presents a power factor correction (PFC) front end based on a 7-level flying capacitor multilevel (FCML) boost converter. The operation of the FCML converter is introduced to illustrate its benefits in terms of efficiency and power density. Compared to conventional 2-level boost converter design, the proposed 7-level FCML converter features the use of low-voltage-rating transistors and a high effective switching frequency. These characteristics of FCML converter lead to drastic reduction in the filter inductor size while maintaining high efficiency and small heat sink volume, and thus significantly improve the power density. On the other hand, the small inductance imposes unique challenges in the implementation of the PFC control. In this work, a digital control implementation is presented to overcome these challenges. A hardware prototype is designed for universal AC input (90 Vac to 265 Vac), 400 V DC output and 1.3 kW power rating, and its performance has been experimentally demonstrated.
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U2 - 10.1109/SPEC.2016.7846223
DO - 10.1109/SPEC.2016.7846223
M3 - Conference contribution
AN - SCOPUS:85015343747
T3 - 2016 IEEE 2nd Annual Southern Power Electronics Conference, SPEC 2016
BT - 2016 IEEE 2nd Annual Southern Power Electronics Conference, SPEC 2016
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2nd IEEE Annual Southern Power Electronics Conference, SPEC 2016
Y2 - 5 December 2016 through 8 December 2016
ER -