Realisation of High Performance Controllers for Nonlinear Drive System
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چکیده
Implementation of effective control schemes for Nonlinear Systems is currently being studied comprehensively. In this paper, robust control schemes for trajectory tracking of Nonlinear Permanent Magnet Stepper Motor system has been proposed. Direct Quadrature (DQ) transformation technique has been employed to convert the system dynamics to DQ frame. Initially, a conventional PID controller along with its control law is discussed. Also, a SelfTuning Adaptive Minimum Variance controller is tested and found to be better than PID controller. Finally, an optimal control strategy using Feedback Linearization is formulated; where in, the desired tracking of current vectors (direct and quadrature) are obtained. The performances of all the aforementioned control algorithms are analysed in detail, with better results observed in Feedback Linearization controller.
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