Bumpless Transfer between Observer-based Gain Scheduled Controllers

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This paper deals with bumpless transfer between a number of observer-based controllers in a gain scheduling architecture. Linear observer-based controllers are designed for a number of linear approximations of a nonlinear system in a set of operating points, and gain scheduling control can subsequently be achieved by interpolating between each controller. The Youla-Jabr-Bongiorno-Kucera (YJBK) parameterisation is used to achieve a smooth scheduling between the controllers. This approach produces a scheduled controller as a linear fractional transformation between a fixed controller and a scheduling parameter. The approach is tested on a simple, but highly nonlinear model of a fossil fuel power plant.
Original languageEnglish
JournalInternational Journal of Control
Issue number7
Pages (from-to)491-504
Publication statusPublished - 2005


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