A novel multi-phase multi-level ac motor drive 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 threephase 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 proposed ac motor drive has been numerically implemented and a complete set of simulation results is given to prove the effectiveness of the whole scheme.

Multi-Phase Multi-Level AC Motor Drive Based on Four Three-Phase Two-Level Inverters

GRANDI, GABRIELE;TANI, ANGELO;
2010

Abstract

A novel multi-phase multi-level ac motor drive 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 threephase 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 proposed ac motor drive has been numerically implemented and a complete set of simulation results is given to prove the effectiveness of the whole scheme.
20th International Symposium on Power Electronics, Electrical Drives, Automation and Motion, SPEEDAM 2010
1768
1775
Gabriele Grandi; Angelo Tani; Padmanaban Sanjeevikumar; Darko Ostojic
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11585/96189
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