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FSCW SPM machines (SPP <1/2, such as 10-pole/12-slot), own outstanding constant power ability [1], although it was regard widely that only IPM machines can be flux-weakened deeply. SPM machines are considered as a favorite candidate for electric propulsion and vehicle application, in order to take their other advantages, such as convenient fabrication, and good controllability [2]. The constant...
A finite element (FE) model, which is based on transfer matrix analysis and local flexibility theorem, is introduced for crack identification of a static (non-rotating) rotor with an open crack. Through numerical simulation, the effects of the location and depth of the crack on the mode shapes and the changes in the eigenfrequencies of the cracked rotor are investigated, and the ratio of the changes...
An approach for implementing the combination of solving the current field and the circuit system is presented in this paper. By employing the concept of super-node, the matrix of the conventional nodal analysis of circuit system is transformed from non-positive define to positive define first. Then a positive define combined matrix of the nodal analysis and the finite element method is obtained
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