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Active Q Flux Concept for Sensorless Control of Synchronous Reluctance Machines.pdf (1.9 MB)

Active Q Flux Concept for Sensorless Control of Synchronous Reluctance Machines

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posted on 02.09.2021, 15:56 by zhendong zhangzhendong zhang, Jacob M. Lamb

This paper proposes a new scheme to use active flux on q-axis for sensorless control of synchronous reluctance machines (SynRM). Conventionally, “Active Flux” on d-axis is adopted to convert a salient pole machine into a fictitious non-salient pole machine. However, the injected d-axis flux can deteriorate high frequency injection (HFI) sensorless control performance or even run the system into unstable region at low speed. This paper demonstrates active flux on q-axis can support back-EMF sensorless control at high speed and improve low speed HFI performance substantially. A seamless transition from HFI sensorless method to back-EMF voltage method is attained after adopting the proposed active q flux. Experiment results are used to validate the proposed method.

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Email Address of Submitting Author

zhendong.zhang@ieee.org

ORCID of Submitting Author

https://orcid.org/0000-0003-0440-8233

Submitting Author's Institution

rockwell automation

Submitting Author's Country

United States of America

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