Abstract
For four-PMSM synchronization systems, the complex structure, nonlinearities and uncertainties make accurate modeling and precise control difficult to realize. This article proposes an easily realized adaptive control scheme for four-PMSM synchronization system. This control scheme combines novel characteristic modeling, genetic algorithm and terminal sliding mode control together. Firstly, the four-PMSM synchronization system is described by characteristic model, which significantly simplifies system’s dynamic model without losing its high-order characteristics. Secondly, a genetic algorithm estimator is newly designed to estimate the real-time value of parameters in characteristic model, which is the key issue in obtaining an accurate system model. Thirdly, an adaptive discrete-time terminal sliding mode controller is proposed based on the characteristic model to enhance system robustness. Also, this controller can eliminate chattering effect when system is reversing. Then, the stability of the closed-loop system is proved by Lyapunov stability theorem. Finally, simulation and experiment results verify the adaptiveness and robustness of the proposed control scheme.
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Publisher’s Note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Recommended by Associate Editor Kyeong-Hwa Kim under the direction of Editor Euntai Kim. This work is supported by the Natural Science Foundation of China (61673217, 61673214, 61673219 and 61333008) and Postgraduate Research &Practice Innovation Program of Jiangsu Province (KYCX19_0301, KYCX19_0299, KYCX19_0300).
Yang Gao is a Ph.D. student in School of Automation, Nanjing University of Science & Technology. His research interests include adaptive control, servo system, characteristic model methodology and system identification.
Yifei Wu is a Professor in School of Automation, Nanjing University of Science & Technology. His research interests include servo system control, intelligent robots and integrated navigation.
Xiang Wang is a Ph.D. student in School of Automation, Nanjing University of Science & Technology. His research interests include servo system control and characteristic modeling.
Qingwei Chen is a Professor in School of Automation, Nanjing University of Science & Technology. His research interests include servo system control, fuzzy control, integrated navigation and nonlinear system control.
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Gao, Y., Wu, Y., Wang, X. et al. Characteristic Model-based Adaptive Control with Genetic Algorithm Estimators for Four-PMSM Synchronization System. Int. J. Control Autom. Syst. 18, 1605–1616 (2020). https://doi.org/10.1007/s12555-019-0421-x
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DOI: https://doi.org/10.1007/s12555-019-0421-x