TY - JOUR
T1 - A Multilevel Open-End Winding Six-Phase Induction Motor Drive Topology Based on Three Two-Level Three-Phase Inverters
AU - Soares, Emerson L.
AU - Jacobina, Cursino B.
AU - De Freitas, Nayara B.
AU - Rocha, Nady
AU - Maia, Ayslan C.N.
AU - Lima, Antonio M.N.
N1 - Publisher Copyright:
© 1972-2012 IEEE.
PY - 2023/9/1
Y1 - 2023/9/1
N2 - This article presents a nine-leg (9L) multilevel inverter to drive an asymmetrical six-phase induction machine in an open-end winding (OEW) configuration. The system is based on three conventional two-level three-phase voltage source inverters (VSIs) with three, two, or one isolated dc links. A machine with two sets of 30 degrees shifted three-phase stator windings is considered. The article discusses the converters operating principles and proposes a simple space-vector pulse-width modulation (SV-PWM) and its implementation through equivalent level-shifted PWM (LS-PWM). Also, a comparative study is presented regarding the discussed 9L-OEW systems and two conventional drives: the six-leg two-level (6L), and the 12-leg OEW (12L-OEW) systems. The figures of merit were the number of components, required dc-link voltage, voltage and current harmonic distortions, torque ripple, and semiconductor losses. Simulations and experiments show results for a 1 HP machine. Finally, the article concludes that the characteristics of the 9L-OEW system using three isolated dc links fit between the 6L and 12L-OEW conventional systems.
AB - This article presents a nine-leg (9L) multilevel inverter to drive an asymmetrical six-phase induction machine in an open-end winding (OEW) configuration. The system is based on three conventional two-level three-phase voltage source inverters (VSIs) with three, two, or one isolated dc links. A machine with two sets of 30 degrees shifted three-phase stator windings is considered. The article discusses the converters operating principles and proposes a simple space-vector pulse-width modulation (SV-PWM) and its implementation through equivalent level-shifted PWM (LS-PWM). Also, a comparative study is presented regarding the discussed 9L-OEW systems and two conventional drives: the six-leg two-level (6L), and the 12-leg OEW (12L-OEW) systems. The figures of merit were the number of components, required dc-link voltage, voltage and current harmonic distortions, torque ripple, and semiconductor losses. Simulations and experiments show results for a 1 HP machine. Finally, the article concludes that the characteristics of the 9L-OEW system using three isolated dc links fit between the 6L and 12L-OEW conventional systems.
KW - Asymmetrical six-phase induction motor drives
KW - multilevel inverters
KW - multiphase machines
KW - open-end winding
KW - space vector pulse width modulation
UR - http://www.scopus.com/inward/record.url?scp=85164432275&partnerID=8YFLogxK
U2 - 10.1109/TIA.2023.3291354
DO - 10.1109/TIA.2023.3291354
M3 - Article
AN - SCOPUS:85164432275
SN - 0093-9994
VL - 59
SP - 6360
EP - 6372
JO - IEEE Transactions on Industry Applications
JF - IEEE Transactions on Industry Applications
IS - 5
ER -