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A novel on-line stator core fault diagnosis method for induction motors (IM) is proposed. This approach is based on an adaptive state observer; it is derived from the IM dynamic model considering stator iron losses. In this model the iron losses are represented by an equivalent iron loss resistance (RFe). Stator core fault causes important variations on iron losses and these variations are reflected...
In this paper, induction motor of which stator core is made of iron powder (Soft Magnetic Composite: SMC) is presented. The comparison of the performance of SMC induction motor and conventional laminated induction motor is shown. As the result, efficiency difference between SMC motor and conventional laminated motor is only 3.7% in spite of the permeability of SMC is 20% lower than conventional laminated...
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