Suppression of harmonic current for IPMSM using generalized repetitive control

Interior Permanent Magnet Synchronous Motors (IPMSM) are generally driven by the current control based on the vector control system. However, there exist harmonic components in the current control loop. For the harmonic current, suppression control methods using a repetitive control have been proposed. In the conventional repetitive control, the amount of memory for implementation has not been considered explicitly. Furthermore, the control parameters determined in our earlier works does not ensure an optimality. In this paper, we propose a new control method of suppressing the harmonic current using the generalized repetitive control. Compared with the conventional method, the proposed method achieves better control performance while considering the amount of memory. The effectiveness of the proposed method is verified through simulations and experiments.

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