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|Title:||Automatic design of multi-variable quantitative feedback theory control systems via evolutionary computation|
|Authors:||Tan, K.C. |
|Keywords:||Computer aided control system design|
Quantitative feedback theory (QFT)
|Citation:||Tan, K.C., Lee, T.H., Khor, E.F. (2001). Automatic design of multi-variable quantitative feedback theory control systems via evolutionary computation. Proceedings of the Institution of Mechanical Engineers. Part I: Journal of Systems and Control Engineering 215 (3) : 245-259. ScholarBank@NUS Repository. https://doi.org/10.1243/0959651011541021|
|Abstract:||This paper proposes a multi-objective evolutionary automated design methodology for multi-variable quantitative feedback theory (QFT) control systems. Unlike existing analytical and convex optimization-based QFT design approaches, the evolutionary 'intelligent' technique is capable of automatically evolving both the nominal controller and the pre-filter simultaneously to meet the usually conflicting multiple performance requirements in QFT, without going through the sequential and conservative design stages for each of the multi-variable subsystems. In addition, it avoids the need of manual QFT bound computation and trial-and-error loop-shaping design procedures, which are particularly useful for multi-variable or unstable plants where stabilizing controllers may be difficult to synthesize. The effectiveness of the proposed QFT design methodology is validated upon a benchmark multi-variable system, which offers a set of low-order Pareto optimal controllers satisfying all closed-loop performances under practical constraints.|
|Source Title:||Proceedings of the Institution of Mechanical Engineers. Part I: Journal of Systems and Control Engineering|
|Appears in Collections:||Staff Publications|
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