J. H. Qiu1,2, H. Jiang1, H. L. Ji1, N. Hu3
CMC-Computers, Materials & Continua, Vol.26, No.1, pp. 1-18, 2011, DOI:10.3970/cmc.2011.026.001
Abstract Piezoelectric actuators based motion-producing devices are widely used in precision machining, deformable mirrors, micropumps and piezoelectric injection systems. However, because of their hysteresis nonlinear property, the piezoelectric actuators can not provide absolutely precise displacements. To solve this problem, researchers applied inverse control method to compensate the nonlinearity of piezoelectric actuators, and the inverse models are mainly based on traditional hysteresis models such as the Preiasch model or Prandtl-Ishlinskii model. In this paper, a new approach for inverse control of piezoelectric actuators is presented. The new method utilize a modified Prandtl-Ishlinskii model which is based on a combination of two asymmetric… More >
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