The necessity of using several components in multilevel inverters jeopardizes the reliability their operation. Hence, aim this article is to propose a novel single-phase fault-tolerant topology based on switched-capacitor concept ensure robustness converter occurrence fault. proposed single-source steps up input voltage seven times with simple control strategy. Fault tolerance achieved by consi...

Abstract Field‐oriented control (FOC) has been broadly used as an accurate method for electric drives. The traditional FOC approach effectively developed to 3‐phase induction motor (3φ IM) drive systems in recent decades. Despite the usefulness of methods during normal condition, these strategies are unable a wye‐connected 3φ IM y ) under stator winding open circuit fault (SWOCF). This paper di...

This paper studies the effect of stator winding configuration on the performance of five-phase induction machines under healthy as well as faulty conditions. The study compares two connections, namely, star and pentagon connections. The comparison is conducted using both simulation and experimental results. The steady state model based on symmetrical components theory is introduced for both con...

Multiphase drives offer enhanced fault-tolerant capabilities compared with conventional three-phase ones. Their phase redundancy makes them able to continue running in the event of faults (e.g., open/short-circuits) certain phases. Moreover, their greater number degrees freedom permits improving diagnosis and performance, not only under affecting individual phases, but also those machine/drive ...

This paper proposes a diagnosis method for a multipole permanent magnet synchronous motor (PMSM) under an interturn short circuit fault. Previous works in this area have suffered from the uncertainties of the PMSM parameters, which can lead to misdiagnosis. The proposed method estimates the q-axis inductance (Lq) of the faulty PMSM to solve this problem. The proposed method also estimates the f...

The main goal of this paper is to detect the opencircuit fault of the electrolytic capacitors usually used in the dcbus of a three phase/level NPC active rectifier. This phenomenon causes unavoidable overvoltage across the dc-bus leading therefore to the destruction of the converter’s power semiconductors. The real-time detection of this fault is therefore vital to avoid severe damage as well a...