Abstract
This paper deals with system identification and gain scheduling control of multi-variable nonlinear systems. We propose a novel scheme where a linear approximation of the system model is obtained in an operating point; then, a Youla-Kucera (YJBK) parameter specifying the difference between the first and a second operating point is identified in closed-loop using system identification methods with open-loop properties. Next, a linear controller is designed for this linearised model, and gain scheduling control can subsequently be achieved by interpolating between each controller. In a constructive manner, we show how to use the YJBK parameterisation to achieve a smooth scheduling between the controllers. The approach is tested on a simple, but highly nonlinear model of a coal-fired power plant.
Original language | English |
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Publication date | 2004 |
Publication status | Published - 2004 |
Event | IFAC Workshop on Adaptation and Learning in Control and Signal Processing - Yokohama, Japan Duration: 30 Aug 2004 → 1 Sept 2004 |
Conference
Conference | IFAC Workshop on Adaptation and Learning in Control and Signal Processing |
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Country/Territory | Japan |
City | Yokohama |
Period | 30/08/2004 → 01/09/2004 |