In this paper, post-fault-tolerant control strategies for quad-inverter multiphase-multilevel induction motor drives are investigated. More specifically, four standard two-level three-phase VSIs (voltage source inverters) supplying the open-end windings of a dual three-phase induction motor is considered, quadrupling the power capability of a single VSI with given voltage and current ratings. In healthy conditions, the control al gorithm is able to generate multi-level voltage waveforms, equivalent to the ones of a three-level inverter and to share the total motor power among the four dc sources in each switching period. This sharing capability is investigated under post-fault operating conditions, when one VSI must be completely insulated due to a severe failure on it. In this case, the conversion power unit can operate with a reduced power rating by a proper modulation of the remaining three VSIs. The whole ac motor drive has been numerically implemented, and the effectiven ess of the proposed control strategies under healthy and post-fault operating conditions have been proved.

Gabriele Grandi, Padmanaban Sanjeevikumar, Yasser Gritli (2013). Transient Analysis and Control Strategies for a Quad-Inverter Multiphase Multilevel Motor Drive in Faulty Conditions. JOURNAL OF ENERGY AND POWER ENGINEERING, 7(7), 1304-1315.

Transient Analysis and Control Strategies for a Quad-Inverter Multiphase Multilevel Motor Drive in Faulty Conditions

GRANDI, GABRIELE;
2013

Abstract

In this paper, post-fault-tolerant control strategies for quad-inverter multiphase-multilevel induction motor drives are investigated. More specifically, four standard two-level three-phase VSIs (voltage source inverters) supplying the open-end windings of a dual three-phase induction motor is considered, quadrupling the power capability of a single VSI with given voltage and current ratings. In healthy conditions, the control al gorithm is able to generate multi-level voltage waveforms, equivalent to the ones of a three-level inverter and to share the total motor power among the four dc sources in each switching period. This sharing capability is investigated under post-fault operating conditions, when one VSI must be completely insulated due to a severe failure on it. In this case, the conversion power unit can operate with a reduced power rating by a proper modulation of the remaining three VSIs. The whole ac motor drive has been numerically implemented, and the effectiven ess of the proposed control strategies under healthy and post-fault operating conditions have been proved.
2013
Gabriele Grandi, Padmanaban Sanjeevikumar, Yasser Gritli (2013). Transient Analysis and Control Strategies for a Quad-Inverter Multiphase Multilevel Motor Drive in Faulty Conditions. JOURNAL OF ENERGY AND POWER ENGINEERING, 7(7), 1304-1315.
Gabriele Grandi; Padmanaban Sanjeevikumar; Yasser Gritli
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/180491
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