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The aim of this paper is to develop a technique for detecting a real rotor inter-turn short-circuit fault in a wound rotor induction machine working as generator by using the spectral and the bispectral analysis. The stator currents provide interesting signatures since the rotor inter-turn short-circuit fault introduces new harmonics in the stator windings. Hence, in this paper, it is proved that...
This paper presents the simulation and experimental results of a 42 V fault-tolerant six-phase induction machine (6PIM) with opened stator phases. The 6PIM has symmetrical 60 degrees displacement winding allowing fault-tolerant modes for an electric power steering (EPS) application. A voltage source inverter (VSI) in closed-loop using a vector control feeds its. The 6PIM model is derived from the...
This paper presents the spectral analysis of the stator phase current and its dq0 components, in a 42V fault-tolerant six-phase induction machine (6PIM) fed by a voltage source inverter (VSI). This machine has symmetrical 60 degrees displacement winding allowing fault-tolerant modes for an electric power steering (EPS) application. The influence of the loss of stator phases in the stator current spectrum...
This paper proposes a method to analyze the speed ripple of a six-phase squirrel cage induction machine based on the non-stationary stator current characteristics. Some frequency components associated with the machine space harmonics are present in the stator current spectrum and depend on the rotor slip. The time evolution of these frequencies can be examined to evaluate the effect of torque ripple...
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