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This paper describes a new, commercially available self-tuning control system. The design of this system accommodates the use of both classical and modern control strategies. This design also alleviates the many practical difficulties associated with self-tuning control.
In this paper an algorithm is given for estimating parameters belonging to known bounded intervals. The parameter estimation scheme eliminates the need for a persistently exciting input in certain adaptive control algorithms.
A simple technique is presented for on-line estimation of constant or slowly-varying continuous-time process parameters and time delay. A major advantage of the algorithm lies in its ability to track time-delay variations over a practically unlimited range. The technique is based on approximation of time delay in the frequency domain by a rational transfer function, construction of the derivatives...
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