[1]钱艳平,李奇.时滞网络预测PI控制算法鲁棒稳定性分析[J].东南大学学报(自然科学版),2007,37(1):159-163.[doi:10.3969/j.issn.1001-0505.2007.01.034]
 Qian Yanping,Li Qi.Robust stability of predictive PI control algorithm for delay network[J].Journal of Southeast University (Natural Science Edition),2007,37(1):159-163.[doi:10.3969/j.issn.1001-0505.2007.01.034]
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时滞网络预测PI控制算法鲁棒稳定性分析()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
37
期数:
2007年第1期
页码:
159-163
栏目:
计算机科学与工程
出版日期:
2007-01-20

文章信息/Info

Title:
Robust stability of predictive PI control algorithm for delay network
作者:
钱艳平 李奇
东南大学自动化学院, 南京 210096
Author(s):
Qian Yanping Li Qi
School of Automation, Southeast University, Nanjing 210096, China
关键词:
拥塞控制 主动队列管理 时滞网络 预测PI 鲁棒稳定性
Keywords:
congestion control active queue management delay network predictive PI robust stability
分类号:
TP393
DOI:
10.3969/j.issn.1001-0505.2007.01.034
摘要:
针对网络中存在的时滞给主动队列管理算法性能带来的不利影响,将Smith预估补偿器与达林算法相结合,提出了一种预测PI控制算法,既利用Smith预估器克服了大时滞给系统性能带来的影响,也减少了控制器参数整定数量.利用控制理论分析了该算法中Smith预估模型与实际对象模型分别存在增益、时间常数和时延失配情况下系统的鲁棒稳定性,并分别给出了保持系统稳定的失配参数条件.理论分析表明,通过适当选择期望闭环传递函数时间常数和预估模型参数,可以使系统获得较强鲁棒性和较快响应速度.仿真试验验证了理论分析的正确性.
Abstract:
A predictive proportional integral(PPI)control algorithm is proposed, which combines the Smith predictive compensator with Dahlin algorithm to alleviate the time-delay influence on the performance of active queue management(AQM)in network. In PPI algorithm, large delays are overcome with Smith predictor and the number of running parameters is reduced. Robust stability of system is analyzed when gain, time constant and time delay parameters of both Smith predictive model and actual plant model are mismatched respectively, and the conditions of mismatch parameters used to maintain system stability are given. The theoretic analysis shows that the tradeoff between robustness and response is achieved by selecting the time constant of the system closed loop desired transfer function and parameters of the predictive model properly. The simulations validate the theoretic analysis results.

参考文献/References:

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备注/Memo

备注/Memo:
作者简介: 钱艳平(1975—),男,博士生; 李奇(联系人),男,博士,教授,博士生导师,liq_kj@js.gov.cn.
更新日期/Last Update: 2007-01-20