公开(公告)号：US20240072541A1

公开(公告)日：2024-02-29

申请号：US18269814

申请日：2022-11-07

Applicant: SHANDONG UNIVERSITY

Inventor： Alian CHEN ,  Tong LIU ,  Chenghui ZHANG

IPC: H02J3/24 ,  H02J3/38

CPC classification number: H02J3/241 ,  H02J3/388 ,  H02J2203/20

Abstract: A model predictive virtual synchronous generator inverter control method considering a frequency-movement direction includes: obtaining a current frequency absolute value based on fundamental frequency of an inverter and a steady-state absolute value based on the fundamental frequency of the inverter; determining a frequency-movement state by comparing the above two absolute values: in a state of deviating from the fundamental frequency or a state of regressing to the fundamental frequency; setting a corresponding prediction output horizon according to the frequency-movement state, and constructing a cost function considering the frequency-movement state; and calculating an optimal virtual power increment value based on the cost function, then calculating an optimal virtual power, inputting the optimal virtual power to a swing equation of a virtual synchronous generator, and performing frequency adjustment according to an output value.