Combined modal and singular perturbation approach to decentralized control
- 1 May 1992
- journal article
- research article
- Published by Taylor & Francis Ltd in International Journal of Systems Science
- Vol. 23 (5), 741-764
- https://doi.org/10.1080/00207729208949246
Abstract
A method is presented for the systematic design of decentralized controllers for large-scale interconnected dynamical systems. The design method employs modal and singular perturbation techniques to affect decoupling of the interconnection into its subsystem components. Once the decoupling is achieved, local controllers for each subsystem are designed individually to place the closed-loop poles of each subsystem in some prespecified locations in the complex plane. The resulting controllers are then used to generate local control inputs, using local information only. A dynamical system comprising four interconnected subsystems is taken as example. Simulation results show that the decentralized controller obtained by the proposed method is comparable to that obtained by conventional global controller design methods.Keywords
This publication has 6 references indexed in Scilit:
- Decentralized control of large-scale dynamical systems incorporating feedforward compensatorsComputers and Electrical Engineering, 1990
- Algebraic characterization of fixed modes in decentralized controlAutomatica, 1981
- Stabilization of Linear Time-Invariant Interconnected Systems Using Local State FeedbackIEEE Transactions on Systems, Man, and Cybernetics, 1978
- Decentralized control of linear multivariable systemsAutomatica, 1976
- Decentralized Stabilization and Regulation in Large Multivariable SystemsPublished by Springer Science and Business Media LLC ,1976
- On the stabilization of decentralized control systemsIEEE Transactions on Automatic Control, 1973