Please use this identifier to cite or link to this item: https://doi.org/10.1109/TIE.2004.825365
Title: A modular control scheme for PMSM speed control with pulsating torque minimization
Authors: Xu, J.-X. 
Panda, S.K. 
Pan, Y.-J.
Lee, T.H. 
Lam, B.H.
Keywords: Iterative learning
Modular approach
Permanent-magnet synchronous motor (PMSM) speed control
Pulsation torque minimization
Sliding mode
Torque observer
Issue Date: Jun-2004
Source: Xu, J.-X., Panda, S.K., Pan, Y.-J., Lee, T.H., Lam, B.H. (2004-06). A modular control scheme for PMSM speed control with pulsating torque minimization. IEEE Transactions on Industrial Electronics 51 (3) : 526-536. ScholarBank@NUS Repository. https://doi.org/10.1109/TIE.2004.825365
Abstract: In this paper, a modular control approach is applied to a permanent-magnet synchronous motor (PMSM) speed control. Based on the functioning of the individual module, the modular approach enables the powerfully intelligent and robust control modules to easily replace any existing module which does not perform well, meanwhile retaining other existing modules which are still effective. Property analysis is first conducted for the existing function modules in a conventional PMSM control system: proportional-integral (PI) speed control module, reference current-generating module, and PI current control module. Next, it is shown that the conventional PMSM controller is not able to reject the torque pulsation which is the main hurdle when PMSM is used as a high-performance servo. By virtue of the internal model, to nullify the torque pulsation it is imperative to incorporate an internal model in the feed-through path. This is achieved by replacing the reference current-generating module with an iterative learning control (ILC) module. The ILC module records the cyclic torque and reference current signals over one entire cycle, and then uses those signals to update the reference current for the next cycle. As a consequence, the torque pulsation can be reduced significantly. In order to estimate the torque ripples which may exceed certain bandwidth of a torque transducer, a novel torque estimation module using a gain-shaped sliding-mode observer is further developed to facilitate the implementation of torque learning control. The proposed control system is evaluated through real-time implementation and experimental results validate the effectiveness.
Source Title: IEEE Transactions on Industrial Electronics
URI: http://scholarbank.nus.edu.sg/handle/10635/54433
ISSN: 02780046
DOI: 10.1109/TIE.2004.825365
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