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This paper presents the implementation of a two degree-of-freedom, high-precision, magnetic-levitation-based positioning system. The apparatus employs one permanent magnet linear synchronous motor and is constructed by Quanser Inc. The paper focuses on the design and testing of a nonlinear controller required for actuating the positioning system. The controller is based on feedback linearization and...
The objective of this paper is development of a formation control and station keeping control law for a constellation of satellites in a circular orbit. It is shown that by utilizing feedback linearization or nonlinear compensation technique an efficient nonlinear control design strategy may be implemented that leads to solutions valid for larger set point regulation and station keeping problems....
A nonlinear optimization PID controller for BLDCM is designed. The design method is based on the fuzzy model for BLDCM other than conventional math model on some assumed conditions. The fuzzy model is gained through neuro-fuzzy identification. By virtue of nonlinear control design (NCD) toolbox in Matlab the controller is easily developed. Simulation and experiment result that the identified model...
This contribution presents a mathematical model for cold rolling mills suited for the control purpose. Founded on physical considerations, particular emphasis is laid on the modelling of the roll gap, including a detailed description of the elastic work roll deformations. Typically, non-circular arc roll gap models involve significant computational effort. Thus, a key objective of this paper is to...
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