鲁棒性可调的主动队列管理PI控制器的解析设计  

Analytical Design of PI Controller for AQM with Robustness Adjustability

作　　者：杨吉文[1] 顾诞英[1] 张卫东[1] 

机构地区：[1]上海交通大学自动化系,上海200240

出　　处：《上海交通大学学报》2007年第5期788-791,796,共5页Journal of Shanghai Jiaotong University

基　　金：国家重点基础研究发展规划(973)子课题项目(2002cb312200);国家自然科学基金资助项目(60474031)

摘　　要：针对主动队列管理控制系统,基于TCP/AQM控制结构提出一种解析地设计PI(Proportional Integral)控制器的方法.分析了控制系统保证鲁棒稳定性的充要条件.根据鲁棒控制H∞最优性能指标,引入动态解调因子设计控制器,采用数学有理逼近的方法得到其实际可执行的PI形式.该控制器由单参数调节,可以方便地实现系统标称性能和鲁棒性能的折中.通过仿真实例验证了所提出方法的优越性.For active queue management （AQM） control system, an analytical method for designing proportional integral （PI） controller was proposed based on a TCP/AQM control structure. The sufficient and necessary conditions for holding the control system robust stability were analyzed. At the same time, according to the robust control H∞ optimal performance specification, dynamic detuning factors were introduced to design the optimal controller, and their executable PI form was derived using a mathematical rational approximation approach. The specialty of this controller is that a single parameter tuning method is proposed, through which the nominal performance and robust performance can be adjusted monotonically to achieve the trade-off. A simulation example was included to demonstrate the superiority of the proposed method.

关 键 词：主动队列管理 比例积分控制器 标称性能 鲁棒性 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]