Nonlinear observer design for a Greitzer compressor model
Chapter, Conference object, Peer reviewed
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OriginalversjonValavanis, Kimon P. [Eds.] 21st Mediterranean Conference on Control and Automation p. 1457-1463, IEEE conference proceedings, 2013 10.1109/MED.2013.6608913
In this paper two different observers for a nonlinear compressor model have been developed and compared: A nonlinear observer based on a circle criterion design and an Extended Kalman Filter. Both of these observers were implemented together with linear control strategies in order to (surge-)control the nonlinear Greitzer compressor model. The newly developed nonlinear observer is a full state observer providing local asymptotic stability results. Compared to the Extended Kalman Filter, the nonlinear observer showed itself at least equivalent, even superior for open-loop estimation.