Compensator Design of Permanent Magnet Synchronous Linear Motor Control System Based on Load Disturbance Observer

Aiming at the problem that the load disturbance generated by the permanent magnet synchronous linear motor (PMSLM) control system will affect its control performance and the load thrust of the PMSLM cannot be observed well, this design proposes two different load disturbance observers, namely the tr...

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Bibliographic Details
Published inJournal of electrical engineering & technology Vol. 18; no. 5; pp. 3709 - 3720
Main Authors Li, Zheng, Zhang, Zi-Hao, Wang, Jin-Song, Wang, Kang-Tao, Guo, Xiao-Qiang, Fan, Dao-Hu, Sun, He-Xu
Format Journal Article
LanguageEnglish
Published Singapore Springer Nature Singapore 01.09.2023
대한전기학회
Subjects
Electrical Engineering
Electrical Machines and Networks
Electronics and Microelectronics
Engineering
Instrumentation
Original Article
Power Electronics
전기공학
Internal model control
Load disturbance observer
PMSLM
Luenberger observer
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Summary:Aiming at the problem that the load disturbance generated by the permanent magnet synchronous linear motor (PMSLM) control system will affect its control performance and the load thrust of the PMSLM cannot be observed well, this design proposes two different load disturbance observers, namely the traditional Luenberger observer and novel internal model control (IMC) observer. The IMC observer observes the load disturbance in the form of proportional and integral, which can effectively improve the identification convergence speed and the compensation control effect. While observing the load disturbance, the two observers in this design can also use the generated thrust current compensation as the feedforward compensation of the system, to achieve disturbance suppression and effectively improve the control performance and robustness of the system. The PMSLM control system based on two observers is built in the simulation platform and the superiority of the designed control system is verified. Through the comparison and verification of the two observers and the no-observer system, it can be concluded that the control strategy can accurately track the load disturbance in the PMSLM, simplify the overall structure of the system, and effectively enhance the anti-disturbance capability and dynamic response capability of the PMSLM.
ISSN:1975-0102
2093-7423
DOI:10.1007/s42835-023-01465-4