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A Quasi-Newton Interior Point Method for Low Order H-Infinity Controller Synthesis

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3 Author(s)
Ankelhed, D. ; Dept. of Electr. Eng., Linkoping Univ., Linkoping, Sweden ; Helmersson, A. ; Hansson, A.

This technical note proposes a method for low order H-infinity synthesis where the constraint on the order of the controller is formulated as a rational equation. The resulting nonconvex optimization problem is then solved by applying a quasi-Newton primal-dual interior point method. The proposed method is evaluated together with a well-known method from the literature. The results indicate that the proposed method has comparable performance and speed.

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Automatic Control, IEEE Transactions on  (Volume:56 ,  Issue: 6 )