基于FA-PID算法的电动舵机多非线性系统研究
Multi nonlinear of EMA system based on FA-PID algorithm
尹洪桥 1卯昌杰 1管军 2易文俊 3郑宇程1
作者信息
- 1. 江苏科技大学 自动化学院,江苏 镇江 212100
- 2. 江苏科技大学 自动化学院,江苏 镇江 212100;南京理工大学 瞬态物理国家重点实验室,南京 210094
- 3. 南京理工大学 瞬态物理国家重点实验室,南京 210094
- 折叠
摘要
针对制导炮弹电动舵机常规建模时常将各部分视为线性环节,且采用传统三闭环PID算法无法解决复杂非线性系统的高频响、低超调等问题.本研究充分考虑了舵机系统内部的电机、死区齿隙与LuGre摩擦等非线性环节,搭建了电动舵机的多非线性控制系统,根据舵偏角运动方向的非单一性,设计了电机的正反转逻辑换相判别模块,并在电动舵机的位置环中引入了模糊自适应PID(FA-PID)智能算法.结果表明:采用FA-PID算法相比于传统PID控制对小角度位置响应的延迟时间下降了约0.49%,上升时间下降了约6.91%,峰值时间下降了约39.94%,稳态误差下降了约94.44%,且进一步通过小角度方波/正弦位置跟踪研究同样可以得出该算法的快速性与鲁棒性.
Abstract
In view of the conventional modeling for EMA(Electromechanical Actuator)of GP(Guided Projectile)often regards each part as a linear link,and the traditional three-closed-loop PID(Proportional Integral Derivative)algorithm cannot solve the problems of high frequency response and low overshoot in complex nonlinear system.In this study,the nonlinear links such as BLDCM(Brushless Direct Current Motor),dead zone backlash and LuGre friction inside EMA system were fully considered,and the EMA multi nonlinear control system was built.According to the non-uniformity of EMA motion direction,the commutation discrimination module of BLDCM was designed.And the FA(Fuzzy Adaptive)PID intelligent algorithm was applied in APR(Automatic Position Regulator)of EMA three loop control system.The results show that the delay time,rise time,peak time and steady-state error of small angle position response decreased by about 0.49%,6.91%,39.94%,and 94.44%respectively,compared with the traditional PID control.And further research on small angle square/sine position response tracking can also demonstrate the rapidity and robustness performance of the FA-PID algorithm.
关键词
制导炮弹/电动舵机/齿隙非线性/LuGre摩擦非线性/电机换相判别/FA-PID算法Key words
GP/EMA/backlash nonlinear/LuGre friction nonlinear/motor commutation discrimination/FA-PID algorithm引用本文复制引用
基金项目
国家自然科学基金面上项目(11472136)
国家自然科学基金青年基金(62203191)
出版年
2024
NETL
NSTL
万方数据