METHOD AND DEVICE FOR IMPROVING EFFICIENCY OF ELECTROMAGNETIC TRANSIENTS PROGRAM PHASE DOMAIN SYNCHRONOUS MACHINE MODEL

摘要

The present disclosure provides a method for improving the computational efficiency of an electromagnetic transients program (EMTP-type) phase domain synchronous machine model. The method comprises: acquiring a traditional phase domain synchronous machine model; acquiring matrix relations between mutual inductance matrices of stator windings and rotor windings according to a trigonometric transformation equation; substituting the matrix relations into the original expression of R_eq and the original formulation of e_h(t), respectively, and deriving to obtain a simplified formulation of the equivalent resistance matrix R_eq and a simplified formulation of the total history term e_h(t); and acquiring an efficient phase domain synchronous machine model. According to the embodiment of the disclosure, in the provided model, the equivalent resistance matrix of the phase domain synchronous machine model and the matrix used in the calculation of the history term are converted into constant sparse matrices, thereby improving the calculation efficiency of the model.