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Finite Element Formation For The Numerical Solution Of Three-Dimensional Nonlinear Magnetostatic Field Problems As Applied To The Design Of Electric Machinery, Mulukutla S. Sarma
Finite Element Formation For The Numerical Solution Of Three-Dimensional Nonlinear Magnetostatic Field Problems As Applied To The Design Of Electric Machinery, Mulukutla S. Sarma
Sarma Mulukutla
Recent years have witnessed considerable research activity in the application of digital-computer methods for the determination of the electromagnetic fields in electrical machinery through the solution of Maxwell's equations, while taking full account of the magnetic saturation. Two distinct numerical approaches are evident in the literature: Finite-Difference Method and Finite-Element method. The author has presented in the recent years a finite-difference formulation for 3-dimensional numerical solutions of the nonlinear electromagnetic field problems in terms of potential functions, and has applied for the analysis of the end-zone fields of aerospace homopolar alternators and solid-rotor induction motors. The present work is directed …
Magnetostatic Field Computation By Finite Element Formulation, Mulukutla S. Sarma
Magnetostatic Field Computation By Finite Element Formulation, Mulukutla S. Sarma
Sarma Mulukutla
Recent years have witnessed considerable research activity in the application of digital-computer methods for the determination of the electromagnetic fields in electrical machinery through the solution of Maxwell's equations, while taking full account of the magnetic saturation. Two distinct numerical approaches are evident in the literature: Finite-Difference Method and Finite Element Method. The author has presented in the recent years a finite-difference formulation for 3-dimensional numerical solutions of the nonlinear electromagnetic field problems in terms of potential functions, and has applied for the analysis of the end-zone fields of aerospace homopolar alternators and solid-rotor induction motors. The present work is …
End-Winding Leakage Of Aerospace Homopolar Alternators, Mulukutla S. Sarma
End-Winding Leakage Of Aerospace Homopolar Alternators, Mulukutla S. Sarma
Sarma Mulukutla
An accurate knowledge of the magnetic field distribution is of great importance in finding the best designs for electrical machinery. It is the purpose of this paper to present a new numerical method for the determination of three-dimensional flux distribution in the end zone of a high-speed aerospace homopolar alternator, and for the calculation of end leakage reactance. The new analysis is applied to an experimental 95 kVA, 115/200 V, 3400 Hz, 40,800 r/min, three-phase, wye-connected, homopolar alternator.