Linear motor and electromagnetic driving system

The invention discloses a linear motor which comprises a primary stator, an auxiliary stator, a rotor support and excitation magnetic poles. The rotor bracket is positioned between the primary stator and the auxiliary stator; the excitation magnetic poles are arranged on the two sides of the mover support, air gaps are formed between the excitation magnetic poles and the primary stator and between the excitation magnetic poles and the auxiliary stator, the polarities of the excitation magnetic poles located at the opposite positions on the two sides of the mover support are the same, and the excitation magnetic poles with different polarities on the same side of the mover support are arranged alternately. According to the linear motor, the weight of the excitation magnetic pole can be reduced, the thrust density of the linear motor is improved, and the effective traction capability of the linear motor can be improved under the condition of the same excitation magnetic pole parameter. And the distance between