公开(公告)号：US11449653B2

公开(公告)日：2022-09-20

申请号：US17605589

申请日：2021-04-06

Applicant: SOUTHEAST UNIVERSITY

Inventor： Wei Gu ,  Yang Cao ,  Dehu Zou ,  Ke Li ,  Kun Shi

IPC: G06F30/20 ,  G06F17/11 ,  G06F113/04 ,  G06F119/06 ,  G06F111/10

Abstract: A converter parameterized constant admittance modeling method based on a cross initialization including the following steps: (1) performing parameterized modeling on a converter, wherein switches are modeled using a parametric historical current source constant admittance model and other components are modeled using a traditional electromagnetic transient simulation integral model in the converter; (2) detecting whether state switching occurs, performing cross initialization correction when occurring; (3) determining model parameters, and establishing an equivalent admittance matrix and an injection current source of a whole grid, to obtain an electromagnetic transient simulation equivalent model; (4) solving a network tide according to a basic solving equation I=YU to obtain an electromagnetic transient model simulation result of the converter at current time; and (5) calculating an equivalent admittance matrix and an injection current source at next time through a current network state quantity, and returning to step (2) until a simulation terminates.