Control of independent multi-phase transverse flux linear synchronous motor based on magnetic levitation

This paper proposes the control system for the independent multi-phase transverse flux linear synchronous motor (IM-TFLSM) based on magnetic levitation. Especially, the stator structures of the IM-TFLSM are composed of the two set which has the independent three-phase windings unlike the conventional Y-connected three-phase linear motors. Therefore, the control algorithms for the magnetic levitation and thrust force of the IM-TFLSM including an initial startup to maintain air gap and current control of the independent 3-phase are proposed in this paper. In addition, the principle of operation and its special structures are briefly described. The validity and effectiveness of the control algorithm is verified through the several experimental results.