Research On The Control Of A Flywheel Electric Machine Drive System For Energy Storage

Through the whole flywheel energy storage system, the core of the entire system is motor control due to the charging process and generating process all achieved by the flywheel motor.Thus motor control is particularly important to the flywheel motor control research.This paper first selects a permanent magnet brushless DC motor as the flywheel motor according to the international design specifications for energy storage flywheel, brings up the mathematical deduction on the charging and discharging process of the flywheel energy storage system,puts forward the main circuit topology of the flywheel energy storage system and builds a simulation model of the brushless DC motor control system and charge discharge mode by using Matlab/Simulink.Considering the flywheel quantity variation during the whole working process will producing a disturbing effect on the stability of the entire flywheel system, and the defects of the traditional PID parameter tuning process such as cumbersome,difficult to achieve the optimal tuning,unable to satisfy the fastness,no overshoot and etc,the paper studies on the flywheel storage system using intelligent motor control system parameter tuning method,and elaborates on the PID controller parameter optimization design method based on improved PSO and fuzzy adaptive control algorithm,and uses it as a speed regulator module of the permanent magnet brushless DC motor current and speed loop control system,and proves the intelligent parameter tuning method do has better dynamic performance and robustness by using Matlab/Simulink.Finally,a digital minimum control system of the flywheel energy storage motor drive system based on TMS320F2808DSP has been designed.The experimental results shows that the prototype can meet the requirements of the high performance system, the experimental results and simulation results were compared to verify the practicality of control method.