Adaptive feedforward control to compensate cogging torque and current measurement errors for PMSMs

Kheng Cher Yeo, Greg Heins, Friso De Boer, Benjamin Phillip Saunders

    Research output: Chapter in Book/Report/Conference proceedingConference Paper published in Proceedings

    Abstract

    Torque ripple minimisation is achieved by an adaptive feedforward control method to reduce cogging torque and current measurement errors. Experiments have been conducted to show that torque ripples are highly sensitive to changes in current offset and cogging torque. An easy way to adapt to cogging torque changes (due to temperature) is proposed and implemented after an initial estimation of the cogging torque is done. This initial estimation is necessary for manufacturing inaccuracies and ongoing adaptation is to cope with operating conditions changes. Higher harmonics of the cogging torque can also be compensated through this way. Current offset which contributes to a large proportion of the torque ripple is also compensated through an adaptive method. The advantages of the proposed scheme combine the benefits of preprogrammed waveform methods which are easy to implement and a simple adaptive system to effectively reduce RMS torque ripple factor from 11.30% to 1.7%.
    Original languageEnglish
    Title of host publication2011 IEEE International Electric Machines and Drives Conference (IEMDC)
    Place of PublicationNew Jersey
    PublisherIEEE, Institute of Electrical and Electronics Engineers
    Pages942-947
    Number of pages6
    ISBN (Print)978-1-4511-0061-3
    DOIs
    Publication statusPublished - 2011
    EventIEEE International Electric Machines and Drives Conference (IEMDC) 2011 - Canada
    Duration: 15 May 201118 May 2011

    Conference

    ConferenceIEEE International Electric Machines and Drives Conference (IEMDC) 2011
    Period15/05/1118/05/11

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    Yeo, K. C., Heins, G., De Boer, F., & Saunders, B. P. (2011). Adaptive feedforward control to compensate cogging torque and current measurement errors for PMSMs. In 2011 IEEE International Electric Machines and Drives Conference (IEMDC) (pp. 942-947). IEEE, Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/IEMDC.2011.5994942