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基于倍频采样和状态预测的LQ控制策略
引用本文:王帅宇,张宇河. 基于倍频采样和状态预测的LQ控制策略[J]. 北京理工大学学报, 2006, 26(1): 79-81
作者姓名:王帅宇  张宇河
作者单位:北京理工大学,信息科学技术学院自动控制系,北京,100081;北京理工大学,信息科学技术学院自动控制系,北京,100081
摘    要:针对网络控制系统中的延时补偿问题,设计了一种新型网络控制系统工作方式.通过设置缓冲区和采用控制器节点倍频采样的方法,使系统在能够实时准确地获得系统延时的情况下,最大限度地减小系统环路中的时滞,在状态预测的基础上设计的LQ控制器,使得网络控制系统的性能得到进一步改善,仿真结果验证了该方法的有效性.

关 键 词:网络控制系统  延时补偿  倍频采样  状态预测
文章编号:1001-0645(2006)01-0079-04
收稿时间:2005-04-11
修稿时间:2005-04-11

LQ Control Strategy Based on Frequency Multiplication Sampling and State Prediction
WANG Shuai-yu and ZHANG Yu-he. LQ Control Strategy Based on Frequency Multiplication Sampling and State Prediction[J]. Journal of Beijing Institute of Technology(Natural Science Edition), 2006, 26(1): 79-81
Authors:WANG Shuai-yu and ZHANG Yu-he
Affiliation:Department of Automatic Control, School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, China
Abstract:A new working method of networked control system is proposed to compensate the networkinduced delay. Through the setting of buffers and application of frequency multiplication sampling, the delay can be obtained in real-time and the time lag in system loop can be farthest reduced. Based on the state prediction, the performance of networked control system could be improved greatly. The results show that the new method is practicable and effective.
Keywords:networked control system(NCS)  delay compensation  frequency multiplication sampling  state prectiction
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