Dr. Kunpeng Li Profile

Dr. Kunpeng Li

at Tianjin University of Technology and Education

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Proceedings Article | 23 January 2017 Paper

Predictive current control of permanent magnet synchronous motor based on linear active disturbance rejection control

Kunpeng Li

Proceedings Volume 10322, 103223B (2017) https://doi.org/10.1117/12.2266028

KEYWORDS: Control systems, Mathematical modeling, Electromagnetism, Feedback control, Inductance, Mathematics, Device simulation, Switching, Algorithms, Sensors

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The compatibility problem between rapidity and overshooting in the traditional predictive current control structure is inevitable and difficult to solve by reason of using PI controller. A novel predictive current control (PCC) algorithm for permanent magnet synchronous motor (PMSM) based on linear active disturbance rejection control (LADRC) is presented in this paper. In order to displace PI controller, the LADRC strategy which consisted of linear state error feedback (LSEF) control algorithm and linear extended state observer (LESO), is designed based on the mathematic model of PMSM. The purpose of LSEF is to make sure fast response to load mutation and system uncertainties, and LESO is designed to estimate the uncertain disturbances. The principal structures of the proposed system are speed outer loop based on LADRC and current inner loop based on predictive current control. Especially, the instruction value of qaxis current in inner loop is derived from the control quantity which is designed in speed outer loop. The simulation is carried out in Matlab/Simulink software, and the results illustrate that the dynamic and static performances of proposed system are satisfied. Moreover the robust against model parameters mismatch is enhanced obviously.

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