Improved Adaptive Control of SMA Actuator Based on Inverse Hysteresis Compensation

Hong Yan Luo; Qing Yun Yang; Eric Abel; Zhi Gang Wang; Yan Jian Liao

doi:10.4028/www.scientific.net/AMM.52-54.1771

Paper Titles

Reliability Method to Estimate Shear Strength Parameters
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Analytical Method to Equivalent Modulus of Entrainment Multiphase Composite
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Effect of Target Power on Structure and Mechanical Properties of Nanocrystalline ZrN Coatings
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Microstructure and Mechanical Properties of κ-Al₂O₃/TiCN Coating Prepared by CVD
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Improved Adaptive Control of SMA Actuator Based on Inverse Hysteresis Compensation
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Improved Taylor-Series Expansion for MS Location Estimation
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New Uplink Initial Ranging Scheme for IEEE 802.16e OFDMA Systems
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An Approach of Constrained Damping Design and Application for the Fine Stage
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The Buckling and Dynamic Analysis of Composite Grid Stiffened Structure
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 52-54Improved Adaptive Control of SMA Actuator Based on...

Improved Adaptive Control of SMA Actuator Based on Inverse Hysteresis Compensation

Abstract:

Shape memory alloys have become the most promising construction material for smart actuators in diverse applications. However, their highly nonlinear hysteresis behaviour sets the main barriers in precise motion control. This paper presents an adaptive MKP control scheme based on a feed-forward compensator using the inverse of the modified KP model and the selective parameter adaptation law, to realize dynamic hysteresis compensation for real-time applications. The performance of the proposed control scheme was evaluated experimentally. The results indicate that such an improved adaptive control scheme is characterized by the reduced computation, rapid parameter convergence and effective hysteresis linearization.