Independent sinusoidal driving permanent magnet synchronous fault-tolerant linear motor

The invention discloses an independent sinusoidal driving permanent magnet synchronous fault-tolerant linear motor. The bottommost of the central position of a base is provided with flat non-magnetic long back iron which is provided with a flat halbach permanent magnet array long stator; a flat alveolar structural rotor is arranged above the flat halbach permanent magnet array long stator; an air gap is arranged between the stator and the rotor; linear guideway pairs are arranged on the base and at both sides of the flat non-magnetic long back iron; displacement sensors are arranged on the base and between the linear guideway pairs and the flat non-magnetic long back iron; the rotor comprises fault-tolerant teeth, armature teeth, concentrated windings twisted on the armature teeth, and a Hall sensor positioned on the lower end of the concentrated windings of an armature; the fault-tolerant teeth and the armature teeth are arranged at intervals; and rotor slots are positioned between the fault-tolerant teeth and the armature teeth. The invention has the advantages of simple structure, good independence among phases, small thrust fluctuation, easy heat radiation, high energy density, high reliability, higher fault-tolerant capability and the like.