Comparative Study on Two-dimensional Magnetic Field Calculation Model of Homopolar Inductor Alternator
Because of its simple rotor structure,the homopolar inductor alternator(HIA)has very high reli-ability,especially suitable for high-speed applications,in the pulse power supply,energy storage system,a-viation power generation,marine propulsion system and other fields have a wide range of applications.The magnetic field of HIA is 3D magnetic field,but the computing resources and time required for 3D magnetic field analysis are too much.Therefore,a simplified two-dimensional model is generally used to analyze the magnetic field of HIA.At present,there are four kinds of two-dimensional magnetic field calculation models of HIA:scalar magnetic potential method,vector magnetic potential method,equivalent excitation winding method and improved equivalent excitation winding method.Scalar magnetic potential method,vector mag-netic potential method,equivalent excitation winding method and improved equivalent excitation winding method have their advantages and disadvantages.In this paper,the above four two-dimensional magnetic field calculation models were compared,their advantages and disadvantages were analyzed,and their appli-cability was discussed.
homopolar inductor alternatortwo-dimensional magnetic field calculation modelscalar mag-netic potential methodvector magnetic potential methodequivalent excitation winding method
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