摘要
针对电液位置伺服系统的非线性、参数时变性等突出问题,提出了一种新型模糊预测函数控制方法。它将预测函数控制和具有参数自调整的模糊控制进行综合来共同控制电液位置伺服系统,并且根据控制系统的位置偏差和偏差变化率,利用放大倍数对模糊控制器的参数进行在线修改。仿真结果表明,采用该控制方法设计的控制器满足系统对快速性和稳态精度的要求,系统具有较强的鲁棒性和抗干扰性,能够实现复杂系统的有效控制。
A new fuzzy predictive functional control method is proposed to improve the performance of an electro-hydraulic position servo system, which is usually characterized by nonlinearity and time-varying parameters. The concept of this method is to combine a predictive functional controller with a fuzzy controller to control an electro-hydraulic position servo system. As the parameters of a fuzzy controller are self-adjusting, they can be modified online by the magnification factor based on the system＇ s position error and the change rate of the position error. The simulation results show that the controller based on the proposed method can improve the rapid response controller shows strong robustness and against external the complex systems. and steady-state accuracy of the system. As this disturbances, it can be used to effectively control
出处
《组合机床与自动化加工技术》
北大核心
2012年第11期75-77,96,共4页
Modular Machine Tool & Automatic Manufacturing Technique
基金
国家自然科学基金(61104085)
江苏省教育厅自然科学基金(11KJB510005)
关键词
电液位置伺服系统
预测函数控制
模糊控制
electro-hydraulic position servo system
predictive functional control
fuzzy control
