Rotor structure of embedded permanent magnet synchronous motor

摘要

The present invention relates to a rotor structure of an embedded permanent magnet synchronous motor, and to increase the difference in inductance between the d-axis and q-axis of a magnet arrangement in a conventional rotor, and to improve the internal potato condition, Although the thickness of the first magnet should be increased, increasing the thickness of the first magnet causes a problem that the effective magnetic pole surface of the rotor is reduced.;Therefore, the present invention has been devised to solve such a problem, and in addition to the first magnet that is embedded in the square direction of the rotor core in addition to the mounting of a second plurality of second magnet in the X direction about the axis of rotation In the permanent magnet synchronous motor, it is possible to increase the generated torque by increasing the difference between the d-axis and q-axis inductance of the magnet arrangement in the rotor without reducing the effective magnetic pole surface, and to increase the thickness of the magnet to create the internal magnetic The aim is to improve the conditions.