Research on Low-Speed and Large-Thrust Linear Motor Used in Electromagnetic Transporting

In order to meet the rapid transportation of modern ton-level flammable and explosive materials such as oil, there is an increasing demand for the development of electromagnetic transportation systems. For the electromagnetic transportation systems, the linear motor is its core component, which not only requires high thrust density, but also maintains a stable speed during operation, and requires in-depth consideration of electromagnetic compatibility and reliability. In order to ensure the normal operation of the transportation system, according to the actual operating environment and needs, the optimal selection of the motor type is an important factor in determining the performance of the system. In this paper two linear induction motors based on the working conditions that meet the requirements of rapid material transportation are designed by using the magnetic circuit method, namely a bilateral long primary linear induction motor and a bilateral permanent magnet linear synchronous motor. Using the finite element method to compare and analyze the electromagnetic thrust, power factor, efficiency and other performances of the two types of motors in detail. As a result, both motors can better meet the design requirements of the electromagnetic transportation system and have good application prospects. The optimal selection can be made according to the adaptability of the actual application environment, which provides technical support for the optimal design of the electromagnetic transportation system.