TY - JOUR A2 - Elwakil, A. S. A2 - Dong, D. AU - Hung, Chung-Wen AU - Yen, Jia-Yush PY - 2013 DA - 2013/11/12 TI - A Robust Variable Sampling Time BLDC Motor Control Design Based upon -Synthesis SP - 236404 VL - 2013 AB - The variable sampling rate system is encountered in many applications. When the speed information is derived from the position marks along the trajectory, one would have a speed dependent sampling rate system. The conventional fixed or multisampling rate system theory may not work in these cases because the system dynamics include the uncertainties which resulted from the variable sampling rate. This paper derived a convenient expression for the speed dependent sampling rate system. The varying sampling rate effect is then translated into multiplicative uncertainties to the system. The design then uses the popular μ-synthesis process to achieve a robust performance controller design. The implementation on a BLDC motor demonstrates the effectiveness of the design approach. SN - 2356-6140 UR - https://doi.org/10.1155/2013/236404 DO - 10.1155/2013/236404 JF - The Scientific World Journal PB - Hindawi Publishing Corporation KW - ER -