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Standard analysis and synthesis techniques for digital control systems assume that the total time-delay in the feedback loop is negligible or precisely known. This might not be the case in some applications. Such systems are quite common in industry, especially due to strong trends towards networking. Under certain circumstances the network-induced delays can be considered constant, and yet it might...
Aiming at unstable processes with large time delay in chemical industry, a modified internal model control method is proposed based on internal model control (IMC). The structure of new control method consists of inner-loop control and outerloop control. The separately design step is used to design forward-feedback controller for disturbance rejection and the IMC controller for set-point tracking...
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