DESIGN OF LINEAR SWITCHED RELUCTANCE MOTOR(LSRM) FOR RAILWAYS

Switched-reluctance motors have gained attention in the variable-speed drive market. The savings in manufacturing cost of the motor due to its simplicity of construction and use of minimum number of switching devices in the drive circuit are two important factors in its favor compared to any other motor drive. Linear Switched Reluctance Motor (LSRM) is an SRM of unrolling stator and rotor into a plane. LSRMs are mostly used in the field of direct-drive linear motion systems. Differing from other linear motors, LSRM is simple in construction, less expensive, very suitable for high-speed travel over long distances, more robust and more fault tolerant. The presented concern is with some of the design aspects of the linear switched-reluctance motor with active stator and passive translator (mover) for railway applications. Towards this objective, a step-by-step procedure is developed for the design of linear switched-reluctance motors.