DYNAMIC MODELS OF LINEAR INDUCTION DRIVE

Abstract. Due to open magnetic circuit and limited length of the linear induction motor inductor phase currents are not equal. The article deals with model of linear induction drive taking into account magnetic asymmetry of linear induction motor at different connection of windings. Developed models are presented and results of simulation are considered. 1. Indroduction 2. Mathematical model of a motor with Y connected windings with neutral wire Linear electric motor (LIM) technology has been broadly used in the aspects of traffic, industry, infor-mation, automation, material transportation, elevators and postal mechanical systems [1, 2, 3]. Three-phase motor with Y connected windings is presented in Figure 1. The figure shows voltages and currents in a circuit. The rotor of the motor is shown turned by angle ϕ. Nevertheless by way of investigation broadening and shrinking areas of application can be defined. Due to worse efficiency linear electric drive