非线性系统的一种智能PID控制算法及应用

AN INTELLIGENCE PID CONTROL ALGORITHM OF NON LINEAR SYSTEM AND ITS APPLICATION

讨论了一种基于专家知识的智能 Ｐ Ｉ Ｄ控制算法。根据专家知识与现场经验，实时修正 Ｐ Ｉ Ｄ 参数，并根据系统响应的在线识别进行知识调整。两个具有明显非线性时变特性对象的仿真结果表明，该算法具有良好的控制特性与鲁棒性，可望被改进为一种实时在线的计算机控制策略而加以实施。

An intelligence PID control algorithm based on the expert system was discussed. In this algorithm, the PID parameters can be adjusted online on the basis of the expert knowledge and the field experience which can also be adapted according to online recognition of the system response. The simulation results of two objects which have obvious non linear time varing characteristic have shown that the algorithm has good control performance and robustness. This method can be implemented as an online real time computer control system.