TY - JOUR
T1 - Modeling and Single-Variable-Based Axial Force Balance Control of Conical PMSM for Electric Aircraft Propulsion System
AU - Fan, Yukun
AU - Liang, Peixin
AU - Liu, Lirui
AU - Gu, Xiaocun
AU - Liang, Lihao
AU - Liu, Weiguo
AU - He, Qi
N1 - Publisher Copyright:
© 2013 IEEE.
PY - 2026/8/1
Y1 - 2026/8/1
N2 - The permanent magnet synchronous motor (PMSM) and propeller direct-drive systems are widely used in electric aircraft due to their lightweight and high-efficiency structure. During flight, the thrust generated by the propeller is transmitted to the motor bearings through the rotating shaft, leading to increased bearing wear and consequently affecting the service life of the electric propulsion system. This article proposes an axial force balance control strategy by considering the characteristics of permanent magnet synchronous conical motors. First, to address the lack of mathematical models for axial forces in conical PMSMs (CPMSMs), a mathematical modeling method is proposed. Based on the characteristics of the mathematical model, a simplified method using the fundamental wave of magnetic potential is presented. To solve the control complexity caused by multivariate influences on axial forces, a single-variable-based model predictive axial force control (SVB-MP-AFC) is proposed, along with a state smooth switching method to reduce bearing wear and improve system stability. Finally, the simulations and experiments verify the accuracy of the mathematical model and the effectiveness of the control strategy.
AB - The permanent magnet synchronous motor (PMSM) and propeller direct-drive systems are widely used in electric aircraft due to their lightweight and high-efficiency structure. During flight, the thrust generated by the propeller is transmitted to the motor bearings through the rotating shaft, leading to increased bearing wear and consequently affecting the service life of the electric propulsion system. This article proposes an axial force balance control strategy by considering the characteristics of permanent magnet synchronous conical motors. First, to address the lack of mathematical models for axial forces in conical PMSMs (CPMSMs), a mathematical modeling method is proposed. Based on the characteristics of the mathematical model, a simplified method using the fundamental wave of magnetic potential is presented. To solve the control complexity caused by multivariate influences on axial forces, a single-variable-based model predictive axial force control (SVB-MP-AFC) is proposed, along with a state smooth switching method to reduce bearing wear and improve system stability. Finally, the simulations and experiments verify the accuracy of the mathematical model and the effectiveness of the control strategy.
KW - Axial force
KW - conical permanent magnet synchronous motor (CPMSM)
KW - mathematical model
KW - model predictive control
KW - model simplification
KW - smooth switching strategy
UR - https://www.scopus.com/pages/publications/105028886490
U2 - 10.1109/JESTPE.2026.3655153
DO - 10.1109/JESTPE.2026.3655153
M3 - 文章
AN - SCOPUS:105028886490
SN - 2168-6777
VL - 14
SP - 4256
EP - 4268
JO - IEEE Journal of Emerging and Selected Topics in Power Electronics
JF - IEEE Journal of Emerging and Selected Topics in Power Electronics
IS - 4
ER -