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This paper proposes a compound feedforward and uncertainty and disturbance estimator (UDE) based control strategy for uncertain systems with Input/Output time delay. The conventional UDE is modified to accommodate the time-delay characteristics. The major aims and modifications of the new structure are: i) to avoid the negative effects of the measurement delay, the predicted process output is calculated...
This paper concerns with the problems of tracking control and disturbance rejection for two types of non-minimum phase (NMP) systems associated with the right half plane (RHP) zeroes and with time delay, respectively. As the achievable closed-loop bandwidth for such systems is usually very limited, obtaining good tracking and disturbance rejection becomes great challenges in the control design. For...
The control of Multi-tank Liquid-level System is both a typical multivariable control problem and a typical problem that is used to verify conception and method of multivariable control. In this paper, a decoupling controller matrix is designed based on the complete decoupling method of feedforward compensation. For the decoupled objective function, the parameters of PI controller are tuned using...
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