PID stabilization of MIMO plants
Gundes, A. N.
Ozguler, A. B.
IEEE Trans on Automatic Control
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Please cite this item using this persistent URLhttp://hdl.handle.net/11693/13511
Closed-loop stabilization using proportional–integral–derivative (PID) controllers is investigated for linear multiple-input–multiple-output (MIMO) plants. General necessary conditions for existence of PID-controllers are derived. Several plant classes that admit PID-controllers are explicitly described. Plants with only one or two unstable zeros at or “close” to the origin (alternatively, at or close to infinity) as well as plants with only one or two unstable poles which are at or close to origin are among these classes. Systematic PID-controller synthesis procedures are developed for these classes of plants.