A tubular switched reluctance linear motor (TSRLM) with two stator poles in cross section and interlaced structure is proposed in this paper. According to the design principle of RSRM and LSRM, the initial geometry dimensions of the TSRLM are decided. Aimed at better performance of TSRLM, the sensitivity analyses on four main parameters are conducted, and the average thrust of the TSRLM is improved. Compared with its counterpart, more advantageous performance of the TSRLM with interlaced structure is validated by electromagnetic analysis on FEA and dynamic simulation results from MATLAB/SIMULINK. Its thrust per unit volume may be a little smaller than other similar motors, but the TSRLM proposed in this paper can operate with high reliability and long life owing, which is superior to other tubular linear motors. Compared with TSRLM with similar structure, the advantage of this motor is that it has two stator poles and a special interlaced structure. This special structure provides more space for winding placement, it contributes to reduce copper loss of the motor.

Tubular linear switched reluctance motor, finite element method, electromagnetic analysis, sensitivity analysis