Accession Number : ADA137760

Title :   Time Domain Analysis and Synthesis of Robust Controllers for Large Scale LQG (Linear Quadratic Gaussian) Regulators.

Descriptive Note : Final rept. 1 Sep 82-31 Aug 83,

Corporate Author : STEVENS INST OF TECH HOBOKEN N J DEPT OF MECHANICAL ENGINEERING

Personal Author(s) : Yedavalli,R K ; Shanbhag,R N ; Irudayasamy,J

PDF Url : ADA137760

Report Date : 31 Aug 1983

Pagination or Media Count : 56

Abstract : The aspect of Robustness for linear multivariable systems is analyzed in time domain. Both Stability Robustness and Performance Robustness are combinedly considered to meet stability and performance requirements. First a stability robustness condition in time domain (in terms of eigenvalues) is presented and examples are given which indicate that the proposed robustness condition is less conservative then the corresponding frequency domain condition as well as another recently proposed time domain condition, both given in terms of singular values. Next a technique is presented to further reduce the conservatism of the proposed condition. A design algorithm that incorporates both stability robustness and performance robustness into the design procedure suggested in the summer faculty program report, is modified with the help of new definitions of robustness indices. Computer software to implement the algorithm is presented along with simple examples to illustrate the concepts. Based on the experience gained by the minigrant research, areas of future research are recommended. (Author)

Descriptors :   *Algorithms, *Control systems, *Time domain, Control theory, Computer programs, Closed loop systems, Open loop systems, Eigenvalues, Matrices(Mathematics), Symmetry, Computations

Subject Categories : Theoretical Mathematics
      Computer Programming and Software
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE