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This paper deals with the robust control strategy for multi-axis coordinated motion system. Firstly, the adjacent cross-coupling error control method was introduced to reduce the synchronization error. Then, the sliding mode control (SMC) law based on the mathematical model of the plant was adopted for restraining parameter perturbation. Furthermore, addressing the unknown torque disturbance, a disturbance...
Multi-axle transportation vehicles usually adopt distributed electro-hydraulic proportional systems based on network to perform the complicated manipulation and control functions. Aiming to the adverse effects caused by network induced time delay, a networked sliding mode control strategy for leveling subsystem of multi-axle transportation vehicles is presented. The model of distributed leveling subsystem...
For the uncertain NCS with stochastic network delay less than one period, a sort of RBFNN-DSMC algorithm combining discrete sliding mode control and RBF neural network is presented. In view of the coupling influence of time-variable delay and plant model error as well as exterior disturbance, RBFNN is used to approach the equivalent disturbance online and output assistant control quantity so as to...
Aiming at the uncertain NCS with bounded long time delay, the time-varying network-delay is translated into constant loop-delay by setting the proper network interface, and the augmented plant model implicating delay information is established. Then for the uncertain part of system, a disturbance estimator is designed. On the basis of the above mentioned studies, a class of disturbance-estimated sliding...
Aiming at the NCS with stochastic less delay, a discrete sliding mode control strategy based on delay estimation online is presented. The delay iterative measuring and pretest parameters-based estimating methods are adopted, and a sliding mode controller with loop-delay estimation online is designed to overcome the adverse influence caused by time-varying delay. Simulation study indicates that the...
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