A Fault Tolerant Multilevel Inverter for Improving the Performance of Pole-Phase Modulated Nine-Phase Induction Motor Drive

Reddy, B Prathap and A, Madhukar Rao and Sahoo, Manoranjan and K, Siva Kumar (2017) A Fault Tolerant Multilevel Inverter for Improving the Performance of Pole-Phase Modulated Nine-Phase Induction Motor Drive. IEEE Transactions on Industrial Electronics. p. 1. ISSN 0278-0046 (In Press)

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In this paper, a fault tolerant multiphase multi-level inverter (MPMLI) configuration is proposed based on dual inverter concept. This configuration helps to improve the performance of pole-phase modulated multi-phase induction motor (PPMMIM) drive in both normal and switch failure conditions. Compare to the existing multi-level inverter topologies for multi-phase induction motor (MIM) drives, the proposed MPMLI configuration requires less number of DC sources and power electronic devices. The proposed MPMLI configuration is able to sustain under various fault conditions, which can improves the reliability of the system. In addition, dc link utilization in low-pole mode is improved by using space vector pulse-width modulation. This MPMLI configuration produces a multilevel voltage profile across the effective phase in 3-phase 12-pole mode. By maintaining the V/f ratio constant, the proposed MPMLI fed MIM drive facilitates a wide range of load torque with half of the rated speed in fault condition. This advantage makes it suitable for traction and electric vehicle applications where reliability and wide range of torque-speed are the major concern. The performance of proposed MPMLI fed 5hp, 9-Φ PPMMIM drive is simulated by finite element method in ANSYS Maxwell 2-D and experimentally verified by laboratory prototype under normal and faulty conditions

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IITH Creators:
IITH CreatorsORCiD
Item Type: Article
Uncontrolled Keywords: Dc link utilization, Fault tolerance, Fault tolerant systems, finite element method, Harmonic analysis, identical voltage profile coils, Inverters, phase grouping, pole phase modulated multiphase induction motor, Space vector pulse width modulation, SVPWM, Switches Torque
Subjects: Electrical Engineering > Power System
Divisions: Department of Electrical Engineering
Depositing User: Team Library
Date Deposited: 03 Oct 2017 04:54
Last Modified: 03 Oct 2017 04:54
URI: http://raiith.iith.ac.in/id/eprint/3599
Publisher URL: https://doi.org/10.1109/TIE.2017.2733474
OA policy: http://www.sherpa.ac.uk/romeo/issn/0278-0046/
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