【摘要】 文中旨在探讨采用模糊PID算法对某飞行器的舵机系统进行控制.上位机设定的预定轨迹和导航仪检测的实际轨迹的偏差通过组合运算,得到预定舵面位置,同时舵回路不断的采样并反馈实时舵面位置,把预定舵面位置和实时舵面位置的偏差进行模糊处理,进而把偏差论域进行设定.结果表明,和经典PID相比,经过模糊PID算法处理后,舵机系统超调量和稳态误差减小,系统的阻尼性能和稳态性能得以提高.结果显示,舵机系统控制过程中,采用模糊PID算法,使得整个系统具有更高的稳定性和可靠性.更多还原

【Abstract】 The paper discusses the control of a vehicle steering gear system by fuzzy PID algorithm.The deviation of the actual trajectory detected by the navigator from the predetermined trajectory set by the first host computer is dealt with by the correlations algorithm,with the scheduled rudder surface position determined.At the same time the rudder loop continues to sample and feedback the real-time control plane position,and then the deviation of the scheduled rudder surface position from the real-time control plane position is handled with fuzzy processing.The results show that,compared with the classical PID,the fuzzy PID algorithm can descrease the steering gear system overshoot and the steady state error,and the system damping performance and steady state performance are improved.It is concluded that in the steering gear system control process,the fuzzy PID algorithm makes the whole system far more stable and reliable.更多还原