Modeling of a piezostack actuator considering dynamic hysteresis

Phuong-Bac Nguyen; Vien-Quoc Nguyen; Quoc-Hung Nguyen; Seung-Bok Choi

doi:10.1117/12.880383

27 April 2011 Modeling of a piezostack actuator considering dynamic hysteresis

Phuong-Bac Nguyen, Vien-Quoc Nguyen, Quoc-Hung Nguyen, Seung-Bok Choi

Proceedings Volume 7977, Active and Passive Smart Structures and Integrated Systems 2011; 79771W (2011) https://doi.org/10.1117/12.880383
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2011, San Diego, California, United States

Abstract

This paper proposes a compensator for the dynamic hysteresis of a piezostack actuator. It consists of two components: a rate-independent hysteresis compensator and a nonlinear filter. The compensator is formulated based on a novel rateindependent hysteresis model, whereas the filter is obtained adaptively using the recursive least square algorithm. In order to demonstrate the effectiveness of the proposed model, control performances are experimentally evaluated in time domain with different input voltage waveforms: fixed-frequency and varying-frequency sinusoidal waveforms. Moreover, a comparison between the dynamic model and the rate-independent one is undertaken. It is shown that the proposed dynamic model can provide much better accuracy than the rate-independent one.

Citation Download Citation

Phuong-Bac Nguyen, Vien-Quoc Nguyen, Quoc-Hung Nguyen, and Seung-Bok Choi "Modeling of a piezostack actuator considering dynamic hysteresis", Proc. SPIE 7977, Active and Passive Smart Structures and Integrated Systems 2011, 79771W (27 April 2011); https://doi.org/10.1117/12.880383

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