基于模糊PID的开关磁阻飞轮储能充放电控制OA

To improve the stability of a vehicle-mounted flywheel energy storage system(FESS)under changes in speed and load,a charge and discharge control strategy for switched-reluctance machine(SRM)driven FESS(SRM-FESS)based on fuzzy proportional integral derivative(PID)was proposed.This strategy is based on the basic structure and principle of the system,and a fuzzy PID controller with adaptive parameters and the control models of charge and discharge were constructed.During the charging process,a dual closed-loop control of speed and current was adopted,where the fuzzy PID control was used for the outer-loop speed control,while the low-speed current chopper and high-speed angle position control were used for the inner-loop current control to achieve the stable operation at variable speeds.During the discharging process,a dual closed-loop control of voltage and current was used to stabilize the output voltage and limit the current.Finally,the simulation results under multi-condition operation prove that the fuzzy PID control can effectively improve the response speed and reduce the overshoot of speed and voltage,indicating that the charge and discharge control strategy realize the stable operation of FESS under sudden changes in speed and load.