TY - GEN
T1 - A nine-arm modular multilevel converter (9A-MMC) for six-phase medium voltage motor drives
AU - Elserougi, Ahmed A.
AU - Abdel-Khalik, Ayman S.
AU - Massoud, Ahmed M.
AU - Ahmed, Shehab
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015
Y1 - 2015
N2 - Dual three-phase (asymmetrical six-phase) induction motors have received significant attention in high power medium voltage drive applications. Typically, two three-phase voltage source converters are needed to feed such a drive system. In medium voltage applications, multilevel inverters are preferred as they provide a stepped output voltage waveform that reduces dv/dt stresses and provides a better output current waveform, which reflects positively on the machine developed torque and overall drive performance. Among different multilevel inverters, the Modular Multilevel Converter (MMC) has recently shown promise in medium and high voltage applications. For a dual three-phase machine, two MMCs with 6 arms each, are needed. This paper proposes a nine-arm MMC (9A-MMC) to drive such a motor. The proposed approach reduces the number of involved arms by 25%, i.e. reduces the number of required dc capacitors, semiconductor devices and their gate drive circuits, which reduces system complexity and cost. A complete analysis of the proposed system is presented and a simulation model is used to verify the proposed concept.
AB - Dual three-phase (asymmetrical six-phase) induction motors have received significant attention in high power medium voltage drive applications. Typically, two three-phase voltage source converters are needed to feed such a drive system. In medium voltage applications, multilevel inverters are preferred as they provide a stepped output voltage waveform that reduces dv/dt stresses and provides a better output current waveform, which reflects positively on the machine developed torque and overall drive performance. Among different multilevel inverters, the Modular Multilevel Converter (MMC) has recently shown promise in medium and high voltage applications. For a dual three-phase machine, two MMCs with 6 arms each, are needed. This paper proposes a nine-arm MMC (9A-MMC) to drive such a motor. The proposed approach reduces the number of involved arms by 25%, i.e. reduces the number of required dc capacitors, semiconductor devices and their gate drive circuits, which reduces system complexity and cost. A complete analysis of the proposed system is presented and a simulation model is used to verify the proposed concept.
KW - Medium Voltage Motor Drive
KW - Modular Multi-level Converter
KW - Mulit-phase Machine
KW - Nine-arms MMC
UR - http://www.scopus.com/inward/record.url?scp=84973143541&partnerID=8YFLogxK
U2 - 10.1109/IECON.2015.7392087
DO - 10.1109/IECON.2015.7392087
M3 - Conference contribution
AN - SCOPUS:84973143541
T3 - IECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society
SP - 129
EP - 134
BT - IECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 41st Annual Conference of the IEEE Industrial Electronics Society, IECON 2015
Y2 - 9 November 2015 through 12 November 2015
ER -