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Aim at the hysteretic nonlinearity characteristic of the giant magnetostrictive actuator in control, an internal model control method based on support vector regression is presented in this paper. Its models are built by support vector regression using the input and output data of the actuator and the internal model control is achieved. The simulation results show the method in this paper has better...
In this paper, a novel modeling method based on least square support vector machines (LS-SVM) is proposed to deal with the rate-dependent hysteresis system. It is possible to construct a unique dynamic model in a given frequency range for a rate-dependent hysteresis system using the selected compound frequency as the training set of LS-SVM, which guarantees an outstanding generalization ability of...
Due to the rate-dependent hysteresis nonlinearity in the magnetostrictive actuator, the tracking control accuracy is limited. This paper presents a new method of modeling the hysteresis in the actuator and a dSPACE-based tracking control approach. The relationship between input and output of the actuator is approximately described by a dynamic differential equation with two rate-dependent coefficients...
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