Segmented Time-stamped Dynamic Matrix Control for Networked Control Systems with Random Delays
Weidong Zhang · Kongzhi yu juece · 2005
To address network-induced delays which are less than one sampling period in Networked Control Systems (NCS), a segmented time-stamped Dynamic Matrix Control (DMC) algorithm is proposed. The network-induced delays are measured by a time-stamp method, based on which the vectors of step response coefficients and control coefficients are corrected in each sampling period. At the same time a segmented algorithm is introduced to reduce the online calculation burden. The algorithm derivation and program realization are firstly given, and then the algorithm is validated in a NCS simulation platform based on TrueTime. The proposed algorithm shows better performance than standard DMC algorithm for a DC motor control system in shared Ethernet.