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The electromagnetic structure of the phase-shift autotransformer (PSAT) is introduced. The operation of the PSAT in connection with a double 3-steps rectifier is discussed. The algorithm for deduction of the main design quantities of such machine is described. The circuit model of the PSAT is arrived at; the circuit analysis allows deducing the quantities from which the machine design can be performed...
This paper presents a detailed lumped parameter (LP) thermal model of an armature slot in a permanent magnet synchronous machine for traction applications. The model is used to investigate the temperature distribution in the slot after a turn-to-turn failure occurs. Steady-state analyses are conducted and a good agreement is found with FEM thermal simulations. The LP model is modified into a transient...
In order to design a high temperature superconducting (HTS) winding for the fault current limiter (FCL), the resistance and the temperature of the winding should be calculated quantitatively under the over-current caused by fault condition. In this paper, a transient analysis is performed to estimate the resistance development and the temperature rise of coated conductor (CC) under AC over-current...
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