Energy-efficient inductors of magnetohydrodynamic devices for metallurgical purposes

This article presents the results of a theoretical study of single-sided linear induction machines with a liquid metal working fluid used in metallurgy for electromagnetic pumping, dosing and mixing of melts through a large non-magnetic gap. The existing technical solutions are presented, the features, advantages, disadvantages are described and a way to optimize the equipment by using new types of winding is proposed. To solve this problem, an analytical model based on the use of Fourier series with complex coefficients is proposed. The model allows taking into account various options for the design of the inductor winding, including compensating elements. Based on the model, a comparative analysis of energy efficiency and weight and size indicators is performed through the winding coefficient determined by the first harmonic.