TY - GEN
T1 - PWM Strategy for 3Phase Active Front End Cascaded 5 Level NPC H-Bridge
AU - Jung, Hyun Sam
AU - Kim, Hwigon
AU - Sul, Seung Ki
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/12/3
Y1 - 2018/12/3
N2 - Cascaded H-Bridge, CHB, is one of the most widely used topologies in medium voltage drive applications. Recently, regenerative capability has been required to several loads such as laminators, downhill conveyors, and mill drives. Therefore, topologies for Active Front End (AFE)-CHB had been proposed and implemented. In this paper, PWM strategy for AFE 5 Level Cascaded H-Bridge is developed. Conventional PWMs, Phase Shift PWM and Level Shift PWM are analyzed in terms of current harmonics, switching loss, loss distribution, DC-link voltages ripple, and balancing DC-link voltages. To overcome the demerits of the conventional PWM methods, in this paper a novel PWM strategy is proposed. Through the proposed PWM method, the switching loss can be evenly distributed between legs, and THD can be reduced to 60% compared with THD of the conventional method.
AB - Cascaded H-Bridge, CHB, is one of the most widely used topologies in medium voltage drive applications. Recently, regenerative capability has been required to several loads such as laminators, downhill conveyors, and mill drives. Therefore, topologies for Active Front End (AFE)-CHB had been proposed and implemented. In this paper, PWM strategy for AFE 5 Level Cascaded H-Bridge is developed. Conventional PWMs, Phase Shift PWM and Level Shift PWM are analyzed in terms of current harmonics, switching loss, loss distribution, DC-link voltages ripple, and balancing DC-link voltages. To overcome the demerits of the conventional PWM methods, in this paper a novel PWM strategy is proposed. Through the proposed PWM method, the switching loss can be evenly distributed between legs, and THD can be reduced to 60% compared with THD of the conventional method.
KW - Active Front End Cascaded 5 Level NPC H-Bridge
KW - Cascaded H-bridge
KW - Pulse Width Modulation
UR - http://www.scopus.com/inward/record.url?scp=85060300907&partnerID=8YFLogxK
U2 - 10.1109/ECCE.2018.8557571
DO - 10.1109/ECCE.2018.8557571
M3 - Conference contribution
AN - SCOPUS:85060300907
T3 - 2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018
SP - 2993
EP - 2998
BT - 2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018
Y2 - 23 September 2018 through 27 September 2018
ER -