基于模糊自适应PID控制的飞轮充电系统研究

摘要

飞轮储能电机具有非线性、多变量的特性，针对传统PI控制参数固定对其难以取得理想控制效果的问题，提出基于模糊自适应PID控制的飞轮充电控制系统方案。模糊自适应PID控制能够根据速度信号的偏差及偏差变化率进行模糊推理，实现对PID参数的自动调整。在MATLAB／Simulink环境下，对模糊自适应PID控制与传统PI控制进行比较。仿真结果表明，采用模糊自适应PID控制的飞轮充电系统响应速度快，转矩和电流波形平滑且波动较小。该控制方案改善了系统的动态性能，提高了鲁棒性。%Flywheel energy storage motors have the characteristics of nonlinear and multivariable.Aiming at the unsatisfac-tory control performance based on traditional fixed-parameter PI control,the flywheel charging system based on fuzzy adap-tive PID control is proposed in this paper.The speed error and the rate of speed error are analyzed by the fuzzy adaptive PID control through fuzzy reasoning.Therefore,the PID parameters can be automatical y adjusted.In MATLAB/Simulink environ-ments,this paper makes comparisons between PI control and fuzzy adaptive PID control.