EIGENVALUE PLACEMENT AND SIMULTANEOUS STABILIZATION USING TABU SEARCH

This paper considers the problem of designing controllers to place sim ultaneously the closed-loop eigenvalues of a finite number of plants, representing different operating conditions of a system, in a specific region in the left half of the complex s plane. The problem of select ing the controller gains is converted to a simple optimization problem with an eigenvalue-based performance criterion, which is solved by a tabu search. Various performance criteria are suggested and formulated , allowing the eigenvalue placement in distinctive locations in the co mplex s plane. Several examples are included to demonstrate the useful ness of the method.