Fault-tolerant capability analysis of six-phase induction motor with distributed, concentrated, and pseudo-concentrated windings

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Alemi Rostami M.; Rezazadeh G.; Tahami F.; Akbari Resketi H. R.

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Journal Paper

Paper Information

Journal: Scientia Iranica Year:2024 | Volume:31 | Issue:Transactions on Computer Science & Engineering and Electrical Engineering (D)10 Page(s): 775-789

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Information Journal Paper

Title

Fault-tolerant capability analysis of six-phase induction motor with distributed, concentrated, and pseudo-concentrated windings

Author(s)

Alemi Rostami M. | Rezazadeh G. | Tahami F. | Akbari Resketi H. R. | Issue Writer Certificate

Keywords

Concentrated winding

Distributed winding

Expected load loss

Fault-tolerant capability

magnetic separation

Open-circuit fault

Pseudo-concentrated winding

Physical phase separation

Reliability analysis

Six-phase induction machine

Abstract

Six-phase motors are becoming more popular because of their advantages such as lower torque ripple, better power distribution per phase, higher efficiency, and Fault-tolerant capability compared to the three-phase ones. This paper presents the Fault-tolerant capability analysis of a symmetrical six-phase induction motor equipped with distributed, conventional concentrated, and pseudo-Concentrated windings under Open-circuit fault scenarios. For further investigation, different load types such as constant-speed, constant-torque, and constant-power are applied to the motor. Two concepts of magnetic and Physical phase separations are introduced as factors affecting the motor reliability. Analytically, these factors give an insight into how the pseudo-Concentrated winding could be a fault-tolerant alternative. Moreover, five parameters such as the change of output power, power loss, power factor, efficiency, and Expected load loss are considered as the Fault-tolerant capability parameters to evaluate the windings reliability. The aforementioned parameters are reported using the finite element analysis for different fault scenarios and different load types. Although the baseline motor dimensions are not optimized for applying the pseudo-Concentrated winding, the pseudo-concentrated shows a promising performance with high Fault-tolerant capability.

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