Open gate fault diagnosis and tolerant for voltage source inverter fed speed sensorless induction motor drive

Elbarbary, Z. M. Salem; Haitham, Z Azazi; Al-Gahtani, Saad F.; Elkholy, Mahmoud M.

doi:10.1080/00207217.2020.1756434

Cited by 4 publications

(1 citation statement)

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“…When the bridge arm is an open or short circuit during operation, the redundant bridge arm will replace it and keep the system working as normal. Authors in [19] proposed a fault-tolerant scheme based on changing the inverter topology from six to four switches to ensure proper operation. In the event of a fault, a connection to the midpoint of the circuit based on an external switch and a disconnection of the phase terminal of the motor of the defective inverter arm is obtained.…”

Section: Introductionmentioning

confidence: 99%

New Approach in the Fault Tolerant Control of Three-Phase Inverter Fed Induction Motor

Boumous

2020

Eng. Technol. Appl. Sci. Res.

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This article provides an improved fault-tolerant control scheme for inverter-powered induction motors. The proposed strategy addresses the cancellation of power switch failures (IGBTs) regardless of their location in a reconfigurable induction motor control. The proposed fault-tolerant topology requires only minimal hardware modifications of the conventional six-switch three-phase drive, mitigating IGBT failures through reconfiguration based on the substitution of an entire inverter arm. The detection mechanism is based on the tridimensional method from which a database will be used for the learning of the neural network. In this method, the current from the stator is used as input to the system, so access to the induction motor is not necessary.

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Section: Introductionmentioning

confidence: 99%