Experimental Implementation of a Hybrid Nonlinear Control Design for Magnetostrictive Actuators
نویسندگان
چکیده
A hybrid nonlinear optimal control design is experimentally implemented on a magnetostrictive Terfenol-D actuator to illustrate enhanced tracking control at relatively high speed. The control design employs a homogenized energy model to quantify rate-dependent nonlinear and hysteretic ferromagnetic switching behavior. The homogenized energy model is incorporated into a finite-dimensional nonlinear optimal control design to directly compensate for the nonlinear and hysteretic magnetostrictive constitutive behavior of the Terfenol-D actuator. Additionally, robustness to operating uncertainties is addressed by incorporating proportional-integral (PI) perturbation feedback around the optimal open Email: [email protected], Telephone: (850) 410-6190 Email: [email protected], Telephone: (614) 247-7480 Email: [email protected], Telephone: (919) 515-7552 Email: [email protected], Telephone: (614) 688-3689
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