模糊技术在PLC控制中的应用

针对控制系统装置的对象往往出现大时滞、非线性和难以建立精确数学模型等问题,提出将先进的模糊控制技术引入传统的自动化装置之中.模糊控制具有鲁棒性强等特点,可以使外界干扰和参数变化跳动对控制效果的影响大大减弱.从工程角度出发,采用西门子PLC常规输入/输出模块组成模糊控制器的核心,提出了相应可行的模糊控制算法,并采用了在线...

Application of fuzzy technology in the PLC control

Aiming at the objects which often have severe delays,are nonlinear and difficult to establish accurate mathematical models in control system,the fuzzy control technology was introduced and applied into traditional automanual devices.The fuzzy control is robust,and it can greatly reduce the effect of outside interference and beating parameters.From an engineering view,the conventional input/output modules of Siemens PLC were used to make up the fuzzy controller＇s core,a corresponding feasible fuzzy control algorithm was presented and the online methods of linear inquery and modular programming were used.The results indicate that error is small and the response is fast in honing control system model,which is used this control method.