含未知参数极值搜索系统预设性能控制  

Prescribed performance control of extremum seeking system with unknown parameters

作　　者：张雷[1] 陈勇[1] 耿宝亮[1] 

机构地区：[1]海军航空工程学院控制工程系,山东烟台264001

出　　处：《系统工程与电子技术》2017年第10期2291-2297,共7页Systems Engineering and Electronics

基　　金：国家自然科学基金(60674090)资助课题

摘　　要：考虑在满足预设性能前提下的含未知参数极值搜索系统的控制问题,针对含未知参数的目标函数设计极值参考轨迹,利用性能函数进行预设性能设定,利用误差转换函数构建等效模型并针对等效模型设计反演控制器,设计未知参数的自适应估计律,使系统实现极值搜索的同时满足预设性能。仿真验证了该方法的有效性。To solve control problems of extremum seeking systems with unknown parameters under the premise of prescribed performance, extremum reference trajectory is designed for the objective function with unknown parameters, Prescribed performance is realized by the performance function and the system equivalent model is constructed by the transformation function. Backstepping controller is designed based on the transfor- mation model and the unknown parameters adaptive estimation law is given. Therefore, extremum seeking is achieved and prescribed performance is satisfied. Simulation results show the effectiveness of the method.

关 键 词：未知参数 极值搜索系统 预设性能 反演控制 

分 类 号：TP273.23[自动化与计算机技术—检测技术与自动化装置]