针对经典PID难以在发射过程中存在大转动惯量变化和燃气流冲击扰动的火炮交流位置伺服系统中取得良好控制结果的缺点,设计了一种采用非线性PID和RBF自适应PID复合控制策略的位置控制器。此控制器克服了非线性PID参数只能按照固定规律变化、RBF自适应PID适用范围有限和离线样本选取困难的不足。仿真结果表明控制策略具有较强的抗参数摄动和载荷扰动能力,并能有效提高控制系统的动态响应性能。

In view of the defect of the classical PID which is difficult to obtain good control effect in the rocket AC position servo system where large changes of moment in the scope and the torque impact of gas flow exist, a position controller with compound control strategy of the nonlinear PID and RBF adaptive PID was designed. With the controller, the weaknesses that the nonlinear PID parameters can only change according to fixed rules, RBF adaptive PID limited applications and offline sample selection problems were surmounted. The simulation results show that the control strategy is robust to parameter perturbations and load disturbance, and can improve the control system's dynamic response effectively.