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EnglishThis paper investigates the problem of improving the output step response obtainable with PID controllers. The solution proposed is based on a supervisory switching control. First, a family of candidate stabilizing conventional PID regulators are designed on the basis of a suitable plant model. For each controller the corresponding feedback connection with a plant model is defined and the resultant output prediction error is used to form a real, positive definite functional giving a measure of the future controller performance. At any time instant, the supervisor exploits these measures for on-line selecting the most appropriate controller to be connected to the plant at the same time instant. The stability of the control system is guaranteed by the introduction of a suitably defined dwell time into the switching logic.
| Titolo: | Adaptively Switched Set-point Tracking PID Controllers |
| Autori: | |
| Data di pubblicazione: | 2004 |
| Abstract: | This paper investigates the problem of improving the output step response obtainable with PID controllers. The solution proposed is based on a supervisory switching control. First, a family of candidate stabilizing conventional PID regulators are designed on the basis of a suitable plant model. For each controller the corresponding feedback connection with a plant model is defined and the resultant output prediction error is used to form a real, positive definite functional giving a measure of the future controller performance. At any time instant, the supervisor exploits these measures for on-line selecting the most appropriate controller to be connected to the plant at the same time instant. The stability of the control system is guaranteed by the introduction of a suitably defined dwell time into the switching logic. |
| Handle: | http://hdl.handle.net/11566/46660 |
| Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |
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