1. Mitigating Rotor Movement During Estimation of Flux Saturation Model at Standstill for IPMSMs and SynRMs.
- Author
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Park, Sang-Woo, Woo, Tae-Gyeom, Choi, Seung-Cheol, Lee, Hak-Jun, and Yoon, Young-Doo
- Subjects
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PERMANENT magnet motors , *RELUCTANCE motors , *SYNCHRONOUS electric motors , *MAGNETIC flux , *ROTORS , *POSITION sensors - Abstract
This article proposes a novel method to reduce rotor movement when estimating magnetic flux models for interior permanent magnet synchronous motors (IPMSMs) and synchronous reluctance motors (SynRMs). A rotation reduction technique that considers the flux saturation effect is proposed. A hysteresis controller is used to inject voltages only into the q-axis and simultaneously into the dq-axes. The rotation of the IPMSM is reduced by calculating the current at the point where the integral of the q-axis current over time becomes zero. In the case of SynRM, the rotation is reduced by calculating the injection voltage magnitudes such that the oscillation frequency of the q-axis current is higher than that of the d-axis current. The effectiveness of the proposed method was experimentally demonstrated using an 11-kW IPMSM and 1.5-kW SynRM. The proposed technique can be used for the self-commissioning of IPMSMs and SynRMs at a standstill, without rotor locking, or position sensors. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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