CAJ | 학술논문

为提高气液增力缸的输出压力精度并增强系统的一致性和稳定性，设计一种模糊自适应 PID 控制器。根据气动伺服系统的建模推导出比例阀控制气液增力伺服系统的数学模型，并结合模糊自适应控制原理，以离线生成控制查询表在线查询的方式，实现实时自整定 PID 参数。通过建立系统仿真模型，得到比常规 PID 控制更好的稳态和动态特性的控制系统。仿真结果证明，该方法可以大大地提高气液增力缸在压力控制中的控制精度。
위제고기액증력항적수출압력정도병증강계통적일치성화은정성，설계일충모호자괄응 PID 공제기。근거기동사복계통적건모추도출비례벌공제기액증력사복계통적수학모형，병결합모호자괄응공제원리，이리선생성공제사순표재선사순적방식，실현실시자정정 PID 삼수。통과건립계통방진모형，득도비상규 PID 공제경호적은태화동태특성적공제계통。방진결과증명，해방법가이대대지제고기액증력항재압력공제중적공제정도。
For improving accuracy of output pressure and enhancing the uniformity and stability of the pneumatic-hydraulic intensifying cylinder, design a controller of adaptive fuzzy PID. According to the model of the pneumatic servo system, derive to the mathematic model of proportional valve control pneumatic-hydraulic servo system. Combine with the theory of adaptive fuzzy PID, based on generating polling list off-line and on-line inquires, realize the real-time auto-setting PID parameter. Through establish system simulation model, compared with regular PID, achieve a better system with stationary state and dynamic response characteristic. The simulation results prove that the method can greatly improve control accuracy of pneumatic-hydraulic intensifying cylinder.