A Single DC Source-Based Three-Level Inverter Topology for a Four-Pole Open-End Winding Nine-Phase PPMIM Drives

Reddy, B Prathap and Meraj, M and Iqbal, A and K, Siva Kumar and Al-Hitmi, M (2021) A Single DC Source-Based Three-Level Inverter Topology for a Four-Pole Open-End Winding Nine-Phase PPMIM Drives. IEEE Transactions on Industrial Electronics, 68 (4). pp. 2750-2759. ISSN 0278-0046

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This article proposes a three-level inverter topology for nine-phase pole phase-modulated induction motor (PPMIM) drives by using the two identical voltage profile coils (IVPC) of a four-pole stator winding. In general, the two IVPCs of each phase winding are connected in series, but in this article, these two IVPCs are separated and excited with conventional two-switch inverter legs without disturbing the flux per pole and other machine parameters. The 18 IVPCs of four-pole nine-phase induction motor (IM) are excited with 18 two-switch inverter legs and fed by the same dc source. Each two-switch inverter leg generates the two-level voltage across each IVPC winding, i.e., the resultant voltage seen by the phase winding is a three-level voltage waveform. As compared to conventional nine-phase neutral point and flying capacitor multilevel inverters (MLIs), the requirement of the dc-link magnitude for the proposed topology is reduced by 50%. The nine-phase PPMIM drive is modulated with the carrier-based three-phase space vector pulsewidth modulation in order to enhance the linear modulation range (LMR). The inverter legs associated with two IVPCs per phase in 9-phase 4-pole (9PH-4PO) mode and six IVPCs per phase in 3-phase 12-pole (3PH-12PO) mode are modulated with the same reference wave and phase-displaced triangular waves. This results in the generation of multilevel voltage with improved harmonic voltage profile, i.e., minimizes the torque pulsations of nine-phase PPMIM drive. The validation of the proposed MLI-fed 5 hp nine-phase PPMIM drive is carried out by using the Ansys Maxwell FEM tool as well as with an experimental prototype.

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IITH Creators:
IITH CreatorsORCiD
K, Siva Kumarhttps://orcid.org/0000-0002-4207-453X
Item Type: Article
Uncontrolled Keywords: 9-phase pole phase-modulated induction motor (PPMIM) drive, identical voltage profile coils (IVPC), multilevel inverters (MLI), phase-shifted triangular space vector pulsewidth modulation (SVPWM), torque ripple minimization, Induction motors,Modulation,Phase space methods,Poles,Topology,Vector spaces,Winding
Subjects: Electrical Engineering > Power System
Electrical Engineering > Automation & Control Systems
Divisions: Department of Electrical Engineering
Depositing User: Team Library
Date Deposited: 29 Dec 2020 12:46
Last Modified: 29 Dec 2020 12:46
URI: http://raiith.iith.ac.in/id/eprint/7627
Publisher URL:
OA policy: https://v2.sherpa.ac.uk/id/publication/3475
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