An optimization method and device for an electromagnetic transient simulation model of a phase domain motor

The embodiment of the invention provides an optimization method and device for an electromagnetic transient simulation model of a phase-domain motor. The method comprises the steps of obtaining an original phase-domain motor model; obtaining a matrix relation between the motor stator winding mutual inductance matrix and the motor rotor winding mutual inductance matrix according to a triangular transformation formula; and respectively substituting the matrix relational expression into the original expression of the Req and the original expression of the eh (t) for arrangement to obtain a simplified model of the equivalent resistance matrix Req and a simplified model of a total historical item eh (t). According to the embodiment of the invention, on the basis of an original phase domain motor model; the matrix relational expression of the motor stator winding mutual inductance matrix and the motor rotor winding mutual inductance matrix is obtained through triangular transformation, the matrix relational express