Title :
Quad-inverter configuration for multi-phase multi-level AC motor drives
Author :
Grandi, G. ; Sanjeevikumar, P. ; Ostojic, D. ; Rossi, C.
Author_Institution :
Dept. of Electr. Eng., Univ. of Bologna, Bologna, Italy
Abstract :
A novel quad-inverter configuration for multiphase multi-level ac motor drives is analyzed in this paper. The proposed scheme is based on four conventional 2-level three-phase voltage source inverters (VSIs) supplying the open-end windings of a dual three-phase motor (asymmetric six-phase machine), quadrupling the power capability of a single VSI with given voltage and current ratings. The proposed control algorithm is able to generate multi-level voltage waveforms, equivalent to the ones of a 3-level inverter, and to share the total motor power among the four dc sources within each switching period. The whole ac motor drive has been numerically implemented and a complete set of simulation results is given.
Keywords :
AC motor drives; invertors; machine windings; 2-level three-phase voltage source inverters; 3-level inverter; dual three-phase motor open-end windings; multilevel voltage waveform generation; multiphase multilevel AC motor drives; quadinverter configuration; single VSI; Induction motors; Inverters; Stator windings; Torque; Windings;
Conference_Titel :
Computational Technologies in Electrical and Electronics Engineering (SIBIRCON), 2010 IEEE Region 8 International Conference on
Conference_Location :
Listvyanka
Print_ISBN :
978-1-4244-7625-1
DOI :
10.1109/SIBIRCON.2010.5555366
