Journal
IEEE TRANSACTIONS ON POWER ELECTRONICS
Volume 15, Issue 5, Pages 871-880Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/63.867676
Keywords
motion control; motor drives; permanent magnet motors; torque ripple minimization
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This paper addresses the problem of torque ripple minimization in Permanent Magnet Synchronous Motors (PMSMs) and proposes an adaptive feedback structure as a solution. A model of PMSM that Includes a torque ripple phenomenon is first developed and tested. While slightly different From the conventional one, our model Is still compact and suitable for control, All parameters of the model have physical interpretation, and can either be measured directly or estimated in a numerically reliable procedure. An adaptive control algorithm is then described, enabling speed tracking while minimizing the torque ripple, Finally, the proposed algorithm is verified in simulations and implemented in a hardware setup. Experimental results show significant reduction of torque ripple (by 27 dB), Extensive analysis and simulations of hardware imposed limitations were performed as well, revealing and quantifying the issues that might affect practical ripple minimization performance.
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