摘要
针对一类具有自衡特性的SISO系统,借助其开环阶跃输入稳态响应所提供的信息设计了一个新颖的PD型模糊控制器.其基本思想是:合理确定模糊逻辑控制系统的结构和参数,使系统处于稳态时控制器的输出等于或近似等于某个先验知识确定的值,该值能将系统输出维持在设定值的一个微小邻域内.通过增加前馈环节,调整误差及其变化率在调节过程不同阶段中的比重,提高了系统的快速性.经仿真实验证明该控制器具有良好的稳态性和鲁棒性.
As for the SISO system with self-balance,a new PD fuzzy controller based on the steady response of its open loop step input is introduced. The method is to choose the structure and parameter of fuzzy logic control system properly,so as to make the controller＇s output equal to the value determined by prior experience absolutely or approximatively, which can make the system output exist in a tiny neighborhood of the given value. Through adding feedforward and adjusting the weight of error and error rate in different stages of adjust process,system speediness is ob- tained. Finally,corresponding simulation proves that this controller possesses good characters of stability and robust.
出处
《郑州大学学报（理学版）》
CAS
2006年第3期43-46,共4页
Journal of Zhengzhou University:Natural Science Edition
基金
河南省自然科学基金资助项目
编号0411010300
河南省教育厅自然科学基金资助项目
编号2004510005
