110kW high-power-density super-efficient permanent magnet synchronous motor

The invention provides a 110kW high-power-density super-efficient permanent magnet synchronous motor, which is characterized in that a plurality of rectangular magnetic steel grooves which are uniformly arranged at intervals in the circumferential direction are formed in a rotor, and magnetic steel is arranged in each rectangular magnetic steel groove; an air groove is further formed between every two rectangular magnetic steel grooves of the rotor, two straight arms with the same width are formed between the two straight line walls of each air groove and the nearest groove walls of the rectangular magnetic steel grooves on the two sides respectively, an arc-shaped arm with the same width is formed between the arc-shaped wall of each air groove and the outer wall of the rotor, and a magnetic isolation magnetic bridge is jointly formed. The air gap magnetic flux at the corresponding positions of the air slots and the magnetic isolation magnetic bridges is reduced; the corresponding positions of the central pos