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To meet increasing demand for higher reliability in power electronics converters applicable in electric vehicles, fault detection (FD) is an important part of the control algorithm. In this study, a model-based open transistor fault diagnsosis method is presented for a voltage-source inverter (VSI) supplying a five-phase permanent magnet motor drive. To realise this goal, a model-based observer is...
Induction machines play a pivotal role in industry and there is a strong demand for their reliable and safe operation. They are generally reliable but eventually do wear out. Faults and failures of induction machines can lead to excessive downtimes and generate large losses in terms of maintenance and lost revenues, and this motivates the examination of on-line condition monitoring. On-line condition...
This paper presents an accurate and reasonably complicated model to simulate the faulty induction machines. The proposed model is based on a permeance network method (PNM) and the differential equation system governing the induction machine behavior in presence of stator faults. The proposed model allows taking into account the saturation in magnetic circuit due to the fault currents as well as all...
This paper introduces a new disturbance free operation method for six-phase induction motors. The machine is supposed to loss one or more phases and to have a pulsating torque. In order to improve the motor torque, we propose a new control law satisfying a condition required to have a smooth torque. The simulation and experimental results illustrate the validity and the efficiency of the proposed...
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