Automatic loop-shaping in QFT using genetic algorithms

Design automation in Quantitative Feedback Theory (QFT) is addressed in this paper. An automatic loop shaping procedure based on Genetic Algorithms is developed. A robust controller for uncertain plants can be designed automatically such that the cost of feedback is minimised and all robust stability and performance speci cations are satis ed. The developed approach can improve the current QFT design in at least two aspects. One is in the design an initial controller for complicated plants which are di cult to design ...