Interface Algorithm for Electromechanical Transient Simulation of Power System Based on PSD-Psmodel

Abstract

In order to study the interface algorithm of electromechanical transient simulation of power system based on PSD-PS Model. After a thorough study of the hybrid simulation interface algorithm, a multi-threaded parallel computing method based on PSD-PS Model hybrid simulation program is proposed. The parallel realization algorithm of linear multi-phase coupling inductance, capacitance and resistance branches is used to improve the electromagnetic transient simulation accuracy of electromechanical side networks. The least square method of a periodic component and curve fitting method based on FFT (Fast Fourier Transform) fitting algorithm are used to improve the accuracy of electromagnetic transient simulation in interface algorithm, and the negative resistance processing algorithm based on current correction is used to improve the stability of hybrid simulation program. The results show that the multi-threaded parallel computing of PSD-PS Model hybrid simulation electromagnetic transient algorithm subroutine aims to improve the processor utilization and the speed of simulation calculation. It has high theoretical value and very practical engineering value.