TY - GEN
T1 - Bridgeless three-level power factor correction rectifier using SiC MOSFETs with high efficiency
AU - Kim, Jun Seok
AU - Kwon, Owon
AU - Kwon, Bong Hwan
AU - Kim, Minsung
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/7/2
Y1 - 2018/7/2
N2 - This paper proposes a high efficient bridgeless single-phase three-level PFC rectifier using two SiC MOSFETs. The circuit configuration of the proposed rectifier consists of two legs which are T-type switching leg and diode leg. The proposed rectifier minimizes the overall conduction losses by eliminating the full-bridge diode rectifier and by replacing the outer switches of T-type leg with SiC MOSFETs. Also, the proposed rectifier with three voltage levels reduces the power losses, harmonic components, voltage ratings, and EMI. To regulate the input current and the output voltage, an effective multilevel control algorithm is also proposed. The control algorithm consists of a feed-forward nominal voltage compensator, an input current controller, and an output voltage controller. The feed-forward nominal voltage compensator lightens the burden of the input current controller that controls the input grid current, and the output voltage controller regulates the output voltage and balances the bottom and top dc-link voltages. Using a 1-kW prototype of the inverter, we have evaluated the performance of the model and proved its feasibility.
AB - This paper proposes a high efficient bridgeless single-phase three-level PFC rectifier using two SiC MOSFETs. The circuit configuration of the proposed rectifier consists of two legs which are T-type switching leg and diode leg. The proposed rectifier minimizes the overall conduction losses by eliminating the full-bridge diode rectifier and by replacing the outer switches of T-type leg with SiC MOSFETs. Also, the proposed rectifier with three voltage levels reduces the power losses, harmonic components, voltage ratings, and EMI. To regulate the input current and the output voltage, an effective multilevel control algorithm is also proposed. The control algorithm consists of a feed-forward nominal voltage compensator, an input current controller, and an output voltage controller. The feed-forward nominal voltage compensator lightens the burden of the input current controller that controls the input grid current, and the output voltage controller regulates the output voltage and balances the bottom and top dc-link voltages. Using a 1-kW prototype of the inverter, we have evaluated the performance of the model and proved its feasibility.
KW - AC-DC power conversion
KW - Multilevel
KW - Single-phase
KW - Single-stage
UR - http://www.scopus.com/inward/record.url?scp=85061842592&partnerID=8YFLogxK
U2 - 10.1109/INTLEC.2018.8612380
DO - 10.1109/INTLEC.2018.8612380
M3 - Conference contribution
AN - SCOPUS:85061842592
T3 - INTELEC, International Telecommunications Energy Conference (Proceedings)
BT - 2018 IEEE International Telecommunications Energy Conference, INTELEC 2018 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2018 IEEE International Telecommunications Energy Conference, INTELEC 2018
Y2 - 7 October 2018 through 11 October 2018
ER -