ADRC Control System of PMLSM Based on Novel Non-Singular Terminal Sliding Mode Observer

Zheng Li, Zihao Zhang, Jinsong Wang, Shaohua Wang, Xuetong Chen and Hexu Sun
Additional contact information
Zheng Li: School of Electrical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China
Zihao Zhang: School of Electrical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China
Jinsong Wang: School of Electrical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China
Shaohua Wang: School of Electrical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China
Xuetong Chen: School of Electrical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China
Hexu Sun: School of Electrical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China

Energies, 2022, vol. 15, issue 10, 1-18

Abstract: In an attempt to solve the problem of the many parameters of the traditional active disturbance rejection controller (ADRC) and to accurately estimate the mover position and speed required by a permanent magnet synchronous linear motor (PMLSM) system, an improved ADRC and a novel nonsingular fast terminal sliding mode observer (NFTSMO) are proposed. Firstly, the traditional first-order ADRC is simplified, the tracking differentiator (TD) module is removed, and the direct error is used to replace the nonlinear function in the extended state observer (ESO) and nonlinear state error feedback (NLSEF) module. Based on the traditional NFTSMO, the smooth back electromotive force (EMF) is obtained by adding the TD to reduce the phase delay caused by the low-pass filter in the traditional sliding mode observer (SMO), and the actuator position and speed information are modulated from the observed back EMF based on the principle of a phase-locked loop (PLL). Simulation and experiments show that this method not only simplifies the system structure of PMLSM but also optimizes many parameters in ADRC while retaining the original excellent performance. Compared with the traditional NFTSMO, the improved NFTSMO enhances the observation accuracy, reduces the chattering phenomenon of the system, and improves the robustness of the system.

Keywords: permanent magnet synchronous linear motor; active disturbance rejection control policy; non-singular terminal sliding mode observer; tracking differentiator (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/15/10/3720/pdf (application/pdf)
https://www.mdpi.com/1996-1073/15/10/3720/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:15:y:2022:i:10:p:3720-:d:818904

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().