Interaction force analysis of transverse flux linear switched reluctance machine by Fourier projection method

Since the transverse flux linear switched reluctance machine (TFLSRM) has a different structure, relative to the rotating switched reluctance machine (SRM) system, this paper proposes an efficient finite-element-based Fourier projection method to evaluate its force effect and transient phenomena. Due to the generated thrust and normal forces being two primary sources providing the machine moving operation, the relation between switching status and force change under different conditions is investigated. The advantages of the proposed technique are confirmed by simulation results, and the accuracy is also illustrated with experimental measurements. It is believed that the proposed method will provide a good guide to interaction force analysis and switching control design for related SRM systems.