Abstract
The cerebella model articulation controller is used as a feedforward controller to establish a nonlinear inverse model of giant magnetostrictive material (GMM). This controller can eliminate the effect of nonlinear hysteresis response of GMM and realize linear control. A PID feedback control is employed to improve the stability and accuracy of the system. The output of the system can map the target input of the system accurately using the compound controller. An experimental platform was built, and the availability of the compound controller was tested on it. Most of the errors of the controlled system were limited in 6 %.
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