International Journal of Applied Electromagnetics and Mechanics - Volume 66, issue 1

Authors: Yuan, Hao | Zhao, Ximei | Fu, Dongxue

Article Type: Review Article

Abstract: In this paper, a novel high-precision motion control is proposed for a permanent magnet linear synchronous motor (PMLSM) servo system, which is vulnerable to the influence of uncertainties. First, the dynamics of the PMLSM with uncertainties are derived. To cater for the parametric uncertainties, the model-based feedforward control is constructed so that the transient response of the system is improved. Moreover, the adaptive jerk control (AJC) scheme based on a robust integral of the sign of the error (RISE) feedback is adapted to restrain the uncertainties such as external disturbance and nonlinear friction in the system. To alleviate the chattering …phenomenon, a novel exponential adaptive law is designed to bound the feedback gain of the jerk, under the condition of the initial term of control efforts considered. Then, the jerk signal is integrated to form the feedback control law, which generates continuous control input and ensures the stability of the system. Compared with sliding mode control (SMC), the experimental results indicate that both the robustness and tracking performance of the system are significantly improved without adding more control efforts. The position tracking error is reduced and high-frequency oscillation is effectively attenuated. Show more

Keywords: Permanent magnet linear synchronous motor (PMLSM), adaptive jerk control (AJC), robust integral of the sign of the error (RISE) feedback, robustness, chattering

DOI: 10.3233/JAE-201558

Citation: International Journal of Applied Electromagnetics and Mechanics, vol. 66, no. 1, pp. 181-201, 2021

Authors: Aditya, Kuragayala | Bobba, Phaneendra Babu | Satyavani, Yadlapalli

Article Type: Correction

DOI: 10.3233/JAE-219001

Citation: International Journal of Applied Electromagnetics and Mechanics, vol. 66, no. 1, pp. 203-203, 2021