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Predictive Current Control for Permanent Magnet Synchronous Motor Based on UKF Control

Guangzhao Luo, Wencong Tu, Yaohong Qu

Abstract


This paper presents a discrete predictive current control for Permanent Magnet Synchronous Motor (PMSM) to improve the dynamic performance and steady-state precision of the current loop. UKF algorithm is introduced on basis of the first order current predictive model established in part II, which further enhance the dynamic performance and robustness of system as well as the steady-state precision. A UKF current observer is built in detail then. The simulation results show that the dynamic performance, steady-state precision and robustness for current of d-q axis in the synchronous rotating frame controlled by predictive current control is significantly better than traditional vector control. The real-time performance of the strategy is also verified in real-time simulation based on dSPACE.

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DOI: http://dx.doi.org/10.21535%2FProICIUS.2014.v10.293

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