Open AccessSimulation and contrast study on flywheel energy storage control strategy for dynamic stabilization of power fluctuation in power grid
Author(s) -
Feng Zhou,
Mingliang Liu,
Peng Jiang,
Mingyu Xu,
Wenbo Hao,
Wang Bing,
Luxin Wang
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/467/1/012105
Subject(s) - flywheel , energy storage , flywheel energy storage , control theory (sociology) , controller (irrigation) , automotive engineering , pid controller , power (physics) , computer science , engineering , control engineering , control (management) , temperature control , agronomy , physics , quantum mechanics , artificial intelligence , biology
Flywheel Energy Storage System can not only effectively reduce the impact of energy fluctuation on the power grid, but also fully improve the utilization of distributed energy system because of its characteristics of energy storage and rapid charging. In this study, permanent magnet brushless DC motor is selected as flywheel motor for wind power system. The mathematical model of flywheel energy storage system in rectangular coordinate system is established. The double closed-loop simulation model of speed and current of flywheel energy storage system is built by using MATLAB/Simulink. In order to improve the control performance of flywheel energy storage system, three different control strategies, PID control, sliding mode variable structure control and ADRC control, were used to simulate the charging and discharging dynamic process of FESS. Considering the particularity of flywheel energy storage system as a limited energy storage unit, the controller parameters of three traditional control modes are adjusted effectively on the premise of keeping the parameters of the flywheel motor unchanged. The simulation results are compared from rotation rate and torque, and the advantages and disadvantages of three control strategies and the dynamic performance of flywheel energy storage system under different control strategies are analyzed.