ROBUST CONTROL LQG/LTR WITH RECOVERY OF THE PROFIT OF THE MESH OF TRANSFERENCE / CONTROLE ROBUSTO LQG/LTR COM RECUPERAÇÃO DO GANHO DA MALHA DE TRANSFERÊNCIA

AUTOR(ES)
DATA DE PUBLICAÇÃO

2006

RESUMO

In this work is presented a method to solve the Eigenstructure Allocation pro- blem for multivariable dynamic systems by means of Robust Controllers Design Linear Quadratic Gaussian, LQG/LTR Loop transfer Recovery and Hierarchical Genetic Algorithm in three levels. It shows an unied method for controllers ro- bust design that are one systematical of the three stages of LQG/LTR methodo- logy. The evolutionary computation is used in the primary level that is the gain controller optimal determination to guarantee the terms of robust stability. The intermediary level, consists in the utilization of a AG to determine the Kalman state observer gain. The last level of this hierarchy consists of recovery the ro- bustness properties of the LQR design which were lost due to inclusion of the LQG loop by means of a GA. The method is veried in a dynamic system which represents an aircraft in cruzeiro speed, a LQG/LQR-hierarchic design perfor- mance analysis in the frequency domain and of time show the commitments that should be taken over in applications of the real world systems.

ASSUNTO(S)

autovalores genetic ciencia da computacao kalman filter filtro de kalman eigenestruture regulador linear quadrático eigenvalues linear quadrático gaussiano dynamic systems algoritmos genéticos eigenvectors linear quadratic gaussiano algorithms sistemas dinâmicos linear quadratic regulator autovetores autoestrutura

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