最优分数阶PIλ Dμ网络时延控制器  

Optimal Fractional-Order PIλ Dμ Network Delay Controller

作　　者：潘峰[1] 刘禄[1] 薛定宇[1] 

机构地区：[1]东北大学信息科学与工程学院,辽宁沈阳110819

出　　处：《东北大学学报（自然科学版）》2014年第10期1382-1385,共4页Journal of Northeastern University(Natural Science)

基　　金：国家自然科学基金资助项目(61174145);中央高校基本科研业务费专项资金资助项目(N110404026;N110804005);机器人学国家重点实验室支持项目

摘　　要：将分数阶控制理论应用于网络控制系统的时延研究当中,设计了适用于网络控制系统的分数阶最优PIλDμ控制器,并通过仿真实验将其针对固定时延和随机诱导时延的控制效果与整数阶最优PID控制器作了比较.实验结果表明,分数阶控制器和整数阶控制器在应用于对象为整数阶的网络控制系统时均能得到较为理想的效果,但分数阶控制器得到的阶跃响应的超调量更小、上升时间和调节时间也都相对更短,这说明最优分数阶PIλDμ针对网络时延具有更为理想的控制效果.The fractional control theory was used to study delay of network control system, and an optimal fractional-order PIλ Dμ network delay controller was designed. The control effects of the optimal PIλ Dμ and optimal PID controller with fixed and random network delay were compared and simulated. The results showed that both fractional-order and integer-order controllers could achieve satisfactory results for the network control system of integer-order, but the overshoot, rising time and accommodation time of step response of fractional-order PIλ Dμ controller were smaller than those of the integer-order one, controller possessed more capacity to deal with and it was proved that optimal fractional-order network delay.

关 键 词：网络控制系统 网络时延 分数阶理论 最优控制 分数阶PIλ Dμ控制器 

分 类 号：TP202[自动化与计算机技术—检测技术与自动化装置]