On the question of optimizing the start-up of a linear induction motor with an adjastable resistance of the short-circuited winding of the secondary element

Background. Linear induction motors with electromagnetic suspension are promising for traction drives in passenger, freight, and urban magnetic-levitation transport. Aim: To study the starting process of a traction linear induction motor with adjustable resistance in the short-circuited winding of its secondary element. Materials and methods. The resistance of the short-circuited winding in the secondary element was analytically modeled as a function of slip, allowing the selection and optimization of the motor's starting modes. Results. The study identified the optimal resistance of the winding in the secondary element of the linear motor, allowing for fine-tuning the acceleration time of magnetic-levitation transport vehicles based on their nominal speed and the inertia force of the high-speed vehicle. Conclusion. The research results provide a method to optimize the starting modes of a linear induction motor. This is achieved by regulating the resistance of the short-circuited winding in its secondary element.