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Multiobjective PID control for a linear brushless DC motor: An evolutionary approach

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2 Author(s)
C. -L. Lin ; Inst. of Autom. Control Eng., Feng Chia Univ., Taichung, Taiwan ; H. -Y. Jan

A robust output tracking control design for a linear brushless DC motor with modelling uncertainties is presented. Frequency-domain design specifications directly related to the mixed sensitivity function and control energy consumption are imposed to ensure stability and performance robustness. A generalised two-parameter PID control framework is developed via an evolution algorithm, which searches the available solutions over a certain specified domain. The proposed design paradigm is intuitive and practical in the sense that it offers an effective way to implement simple but robust solutions covering a wide range of plant perturbation and, in addition, provides excellent tracking performance without resorting to excessive control. Experimental and numerical studies have been presented to confirm the proposed control design.

Published in:

IEE Proceedings - Electric Power Applications  (Volume:149 ,  Issue: 6 )