AUTHOR=Chen Yijun , Yang Bo , Han Yiming , He Tingyi , He Peng , Meng Xian , He Xin 

TITLE=Optimal Adaptive Inertial Droop Control–Based Power System Frequency Regulation via Wind Farms

JOURNAL=Frontiers in Energy Research

VOLUME=9

YEAR=2022

URL=https://www.frontiersin.org/journals/energy-research/articles/10.3389/fenrg.2021.819398

DOI=10.3389/fenrg.2021.819398

ISSN=2296-598X

ABSTRACT=<p>Wind farm–based frequency regulation of the power system has progressively attracted more attention owing to its higher power generation capacity. Among which the step start-up and adaptive inertial droop control of wind turbines with a maximum power point efficiently regulate the system frequency <italic>via</italic> fully utilizing the rotational kinetic energy. Besides, the coefficients of adaptive droop control and virtual inertial control will facilitate a significant influence on the frequency support performance and operation status of wind turbines for the power grid. To obtain optimal control parameters, a parameter optimization framework of a step start-up adaptive inertial and droop controller combined with the CGO algorithm is proposed, whose effectiveness is verified by a three-area four-terminal VSC-MT-HVDC–based WFs and AC system in MATLAB/Simulink. As a result, a set of parameters with a satisfactory and comprehensive dynamic control performance can be acquired by the proposed method under both 200 MW and 300 WM load increases compared with the trial-and-error approach.</p>