Abstract
In this paper, we propose a new technique used to design a robust controller that is not as high-order and complicated as the ones designed by conventional \(\cal{H}\) ∞ loop shaping method. The proposed algorithm is called Genetic Algorithm (GA) based fixed-structure H ∞ loop shaping control. In the approach, GA is adopted to solve the H ∞ loop shaping design problem under a structure specified controller. The performance and robustness of the proposed controller are investigated in a buck-boost converter in comparison with the controllers designed by conventional H ∞ loop shaping and conventional ISE method. Results of simulations demonstrate the advantages of the proposed controller in terms of simple structure and robustness against plant perturbations and disturbances. Experiments are performed to verify the effectiveness of the proposed technique.
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Acknowledgments
This research work is financially supported by the Thailand Research Fund (Project. No. MRG4980087) and the research fund from the Faculty of Engineering, King Mongkut’s Institute of Technology Ladkrabang.
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Kaitwanidvilai, S., Jangwanitlert, A., Ngarmroo, I., Khanngern, W., Karnprachar, S. (2009). Fixed Structure Robust Loop Shaping Controller for a Buck-Boost Converter Using Evolutionary Algorithm. In: Wai, PK., Huang, X., Ao, SI. (eds) Trends in Communication Technologies and Engineering Science. Lecture Notes in Electrical Engineering, vol 33. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-9532-0_14
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DOI: https://doi.org/10.1007/978-1-4020-9532-0_14
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