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When one winding of the single-winding bearingless switched reluctance motor (SWBSRM) is short-circuited, a continuous radial force for the levitation can be obtained by extending the conduction of the prior energized phase. Based on the force compensation strategy, this paper aims to further improve the fault-tolerant ability of the motor. Optimized fault-tolerant current mathematical model is proposed...
A novel open-circuit fault diagnostic method for dual-winding fault-tolerant permanent magnet (DFPM) motor drive system is proposed and investigated. The proposed open-circuit fault diagnostic method uses the normalized currents' average values and average absolute values to formulate the diagnostic variables and incorporates the merits of them. Due to the normalized diagnostic variables and the introduction...
The aim of this paper is to propose the application of the DC-link current sensors of the back-to-back converters for operation of a doubly-fed induction generator (DFIG). The operation of the DFIG is first discussed. The measured DC-link currents are used reconstruct the AC current waveforms for operation of the DFIG under different operating modes. The feasibility of the proposed application is...
Dual-winding fault-tolerant permanent magnet (DFPM) motor offers the advantages of high power density, high efficiency and high fault-tolerance. In this paper, a new open-circuit fault diagnosis of the DFPM motor drive for aerospace applications is proposed and investigated. The proposed open-circuit fault diagnostic strategy can realize real-time detection and localization of single and multiple...
This paper investigates the thermal behavior of a five-phase fault tolerant permanent magnet vernier (FTPMV) machine under healthy and faulty operating conditions. The losses of the FTPMV machine in healthy and faulty cases are calculated and analyzed at first. Then, thermal analysis of the FTPMV machine is performed by using finite-element method. The simulation results verify that the FTPMV machine...
Based on the optimal primary and secondary pole number combination selection rule of linear switched-flux PM machines (LSFPMM), the C-core and E-core LSFPMM with even primary poles has been proposed, which are optimized by individual parameter optimization. The results of individual parameter optimization with different secondary pole numbers are investigated and compared based on 2D finite element...
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