2019 International Multi-Conference on Industrial Engineering and Modern Technologies (FarEastCon) | 2019
Linear Induction Motors Tractive Force Components Analysis with Regard to the Motors’ Electromagnetic No-Symmetry
Abstract
This paper deals with the practical applications and a novel method of calculation of linear induction motors (LIMs), and arched-stator induction motors, with open magnetic circuit of limited length inductors with flat, cylindrical, or rotating working bodies, translational or rotating moving under the action of a field of these inductors. The designs of three-phase flat motors, developed by the author for the special transport systems, working in the conditions of hermetic protective chambers with an aggressive radioactive environment are resulted. The theoretical part of the paper describes the author’s unconventional approach to the calculation of tractive force components of the motors, taking into account the electromagnetic asymmetry of the phases of inductors due to the longitudinal edge effect. This asymmetry previously was not be taken into consideration in calculations and, as shown in the papers, published by the author of this article, it leads to large errors in calculations, particularly, for the motors with small number of poles. Thus, the LIMs have to be considered as an asymmetric system, which can be described theoretically with the application of a method of symmetrical components, allowing receive rather simple solutions which are suitable for engineering practice. This article presents the results of the extended analysis of the LIMs tractive force components, based on the author’s novel calculation method, described in the author’s papers published previously.