TY - GEN
T1 - Sliding Mode Natural Speed Observer With Hybrid Flux Concept for Sensorless PMSM Drives
AU - Gong, Xubo
AU - Ma, Xiaodong
AU - Xu, Zhexi
AU - Wang, Wei
AU - Xu, Dianguo
N1 - Publisher Copyright:
© 2025 IEEE.
PY - 2025
Y1 - 2025
N2 - This article addresses the sliding mode reduced-order natural speed observer (NSO) design for position sensorless drive with permanent magnet synchronous motor (PMSM). Perform stability analysis on the original reduced-order NSO, include parameter inaccuracies and velocity discrepancies. The NSO is asymptotically stable alone under steady-state conditions. A feedback correction term and a sliding gain are necessary to improve robustness and suggest a more pragmatic speed observer design. Building on this, the sliding mode reduced-order NSO and the hybrid flux observer (HFO) are cascaded together. This leads to a sensorless algorithm that requires adjustment of only three parameters. By integrating the active flux principle, the proposed sensorless method can be applied to both interior PMSMs and surface PMSMs. Finally, the experimental validation is carried out on a platform of 750W PMSM drive and the proposed method is efficient.
AB - This article addresses the sliding mode reduced-order natural speed observer (NSO) design for position sensorless drive with permanent magnet synchronous motor (PMSM). Perform stability analysis on the original reduced-order NSO, include parameter inaccuracies and velocity discrepancies. The NSO is asymptotically stable alone under steady-state conditions. A feedback correction term and a sliding gain are necessary to improve robustness and suggest a more pragmatic speed observer design. Building on this, the sliding mode reduced-order NSO and the hybrid flux observer (HFO) are cascaded together. This leads to a sensorless algorithm that requires adjustment of only three parameters. By integrating the active flux principle, the proposed sensorless method can be applied to both interior PMSMs and surface PMSMs. Finally, the experimental validation is carried out on a platform of 750W PMSM drive and the proposed method is efficient.
KW - cascaded fashion
KW - hybrid flux observer (HFO)
KW - natural speed observer (NSO)
KW - permanent magnet synchronous motor
KW - sliding mode
UR - https://www.scopus.com/pages/publications/105004217941
U2 - 10.1109/ICIT63637.2025.10965312
DO - 10.1109/ICIT63637.2025.10965312
M3 - 会议稿件
AN - SCOPUS:105004217941
T3 - Proceedings of the IEEE International Conference on Industrial Technology
BT - 2025 International Conference on Industrial Technology, ICIT 2025 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 26th International Conference on Industrial Technology, ICIT 2025
Y2 - 26 March 2025 through 28 March 2025
ER -