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A method to design digital PID controller satisfying multiple performance indices is proposed for arbitrary-order linear discrete-time systems with time delay. The design idea of this method is first to present the control parameter set which stabilizes the closed-loop control system by adopting Tchebyshev representation and roots distribution conditions, and then to determine the corresponding parameter...
It is well known that networked control system can be modeled as a discrete model with a multiple steps delay in two control items when the network-induced delay is longer than a sampling period. Based on this discrete model with a multiple delay in two control items, a new model of networked control systems is got by two steps transformation. One control item with time delay is disappeared in this...
An optimal regulator is presented for a nonlinear discrete-time system with input delay and a quadratic criterion. First, the original problem is reduced to the nonlinear-quadratic regulator design for a system without delays by an extended Artstein model reduction approach. Then, An iterative process is proposed to find a solution sequence of the nonlinear two-point boundary value (TPBV) problem...
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