Time-stamped multivariable generalized predictive control of network control systems

Abstract

The key point of the network control systems is that conventional generalized predictive control algorithm cannot deal with random delays, packet losses and vacant sampling. In this paper, the time-stamped multivariable generalized predictive control (TSMGPC) was proposed to deal with this problem. The TSMGPC used time-stamped to calculate the real delay, and the least mean square (LMS) algorithm to estimate the induced delay. In order to reduce the transmission times between the controller and the actuator, a threshold that was set in advance would be used to decide whether the control information were sent to the actuator or not. The simulation results show that the TSMGPC can trace the desired output precisely.