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This paper presents an analysis of the torque ripple minimization under unbalanced phase resistance (UPR) in a five-phase permanent magnet assisted synchronous reluctance motor (PMa-SynRM). There are many reasons for arising UPR conditions in a motor. One of the key reasons can be the shortening winding turns of the motor which significantly reduces the winding insulations. Therefore, over the times,...
This paper presents a study on the thermal effects of a five-phase permanent magnet assisted synchronous reluctance motor (PMa-SynRM) under various fault conditions. The major advantage of a five-phase system is the additional number of phases which make it suitable for fault tolerant control in critical service applications. However, under the fault tolerant control (FTC), to maintain maximum torque,...
This paper aims to present an analysis of the torque ripple minimization technique for a five-phase permanent magnet assisted synchronous reluctance motor (PMa-SynRM) at different types of open phase faults. Minimizing the torque ripple has been the best practice to reduce the motor vibration. Especially, in a five-phase PMa-SynRM the vibration becomes substantially high at the time of open phase...
The use of signal injection methods in the estimation of magnet temperature is an innovative and non-intrusive approach used in permanent magnet motors. One of the biggest challenges in these approaches however involves the determination of the optimal frequency of the injected signal in order to accommodate its detection, accuracy, sensitivity and implementation. This paper presents an innovative...
In this paper, fault tolerant control of a five-phase permanent magnet assisted synchronous reluctance motor (PMa-SynRM) has been discussed. Reliable control method under any fault conditions has been predominantly required in critical applications such as hybrid/electric vehicular applications and aerospace industries. The proposed method utilizes the advance vector control of multiphase machine...
This paper presents a new approach for phase fault detection of a five-phase permanent magnet synchronous reluctance motor (PMa-SynRM). The proposed fault detection method has been developed through novel decomposition technique of sequential components of a five-phase electrical machine. Unlike conventional three phase machines, phase fault of five-phase machine shows different response under single...
This paper presents the optimal sustainable fault tolerant control of a five-phase permanent magnet synchronous reluctance motor (PMa-SynRM). Advanced fault tolerant control system has been required for applications where high reliability and safety is required including hybrid/electric vehicles and aerospace industry. The proposed fault tolerant control strategy is based on advanced vector control...
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