Mehdi Taherzadeh - IEEE Xplore Author Profile

Showing 1-12 of 12 results

Filter Results

Show

Results

This review paper provides an overview of recent advancements in the design, modeling, control, and diagnosis techniques of six-phase induction machines. With an increasing focus on multiphase machines for various applications, the study highlights key developments in six-phase induciton machines, including innovations in design methodologies, advancements in modeling techniques, novel control str...Show More
Studies related to fault detection in induction motors have taken a next step as machine learning techniques are becoming popular as the industries adapt to Industry 4.0 and make provisions for Industry 5.0. In relation to that, this paper proposes a texture-based feature estimation coupled with a shallow neural network for detection of open rotor phase in wound rotor induction machines using only...Show More
Fault detection in induction machines has become a topic of great interest for researchers due to the growing utility these are giving to today’s industry. Real time machine learning methods are recently proposed in this area to improve the precision of fault detection. In this paper, a novel methodology based on texture feature estimation using an artificial neural network is proposed to be used ...Show More
Observers have been used for more than 30 years as popular techniques to replace sensors for high performances electrical drives. On the other hand, condition monitoring and fault detection of electrical drives have been based on data analysis coming from sensor measurements. It was a natural trend to mix together the two different techniques to investigate the possibility of replacing sensors by ...Show More
A new technique to observe the electromagnetic torque of a permanent magnet synchronous machine based on flux linkage estimation considering unknown magnetic condition is presented in this article. The magnetic behavior uncertainties including permanent magnet flux, linear self-inductances, linear coupling-effect inductances, and magnetic saturations are taken into account as a set of new variable...Show More
The use of multiphase machines can increase the reliability of the system since there are still three healthy phases even in faulted mode. Nevertheless, the controllers have to be updated when a fault occurs. In this way, a general control scheme is proposed in such a way to remove the electromagnetic power oscillations for a six-phase induction generator (6PIG) in healthy and up to three opened-p...Show More
The aim of this paper is to present a six-phase induction machine (6PIM) model based on the so-called circuit-oriented approach suitable for simulation of electrical faults on both stator and rotor sides. This specific model has been developed by using only resistances, inductances, and controlled voltage sources. The coupling effects between both the stator and the rotor have been taken into acco...Show More
Energy production or critical applications need fault tolerant operation. Six-phase induction machine (SC6PIG) increases the reliability by allowing the loss of up to 3 phases. Associated with a relevant novel control able to adapt itself to the new configuration, operation can keep on under fault. A novel strategy of control is here proposed with sensorless control. This strategy nonetheless focu...Show More
This paper deals with speed control of a squirrel cage six-phase induction machine (SC6PIM) in phase opening occurrences. A decoupled model of induction machine with unbalanced structure is given to analyze the phase opening operation of the SC6PIM. In order to reduce torque oscillations created in phase opening events, a fault-tolerant operation method by using indirect rotor field oriented contr...Show More
This study presents field oriented control of a squirrel cage six-phase induction generator (SC6PIG) when a phase fault is detected in order to minimize output power oscillations during phase opening. An unbalanced structure of squirrel cage six-phase induction machine (SC6PIM) has been modeled to analyze healthy and faulty conditions of the machine. According to the unbalanced structure of the ma...Show More
In this paper, a speed adaptive flux Luenberger observer is presented for sensorless control of a squirrel cage six phase induction machine (SC6PIM) in healthy and faulty condition. Model of an induction machine in unbalanced operating situation is presented and used to estimate the states of SC6PIM in fault condition by using Luenberger observer and an adaptive speed system. Rotor flux and speed ...Show More
Industrial plants generally make use of large induction motors which are the heavy consumers of reactive power. These motors sometimes cause the reduction of power factor and make the plants use capacitor banks to improve the power factor. Switching on capacitor banks to a circuit generally causes the increase of the voltage in the feeding bus and will also bring severe inrush current. This situat...Show More