TY - GEN
T1 - Smith Predictor-Based Decoupled Discrete Current Control for Five-phase PMSM at Low Sampling-to-Fundamental Frequency Ratios
AU - Wang, Huanran
AU - Peng, Qilin
AU - Buticchi, Giampaolo
AU - Gu, Chunyang
AU - Zhao, Weiduo
AU - Wang, Shuo
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - With the increase of high-reliability requirements, the multiphase machine draws considerable attention from the field of transportation electrification. However, the presence of third-order harmonic subspaces in five-phase machines poses greater challenges for high-speed applications, particularly due to the low sampling-to-fundamental (S2F) frequency ratios observed in higher-order subspaces. In this case, the electrical speed in third-order harmonic subspace is three times of that in fundamental subspace. The closed-loop control system performance deteriorates gradually or even becomes unstable due to cross-coupling in dq axis. Therefore, a Smith predictor-based decoupling control is proposed to eliminate the cross-coupling at low S2F frequency ratios. Additionally, the proposed method offers a solution to ensure the control stability of high-speed five-phase motors.
AB - With the increase of high-reliability requirements, the multiphase machine draws considerable attention from the field of transportation electrification. However, the presence of third-order harmonic subspaces in five-phase machines poses greater challenges for high-speed applications, particularly due to the low sampling-to-fundamental (S2F) frequency ratios observed in higher-order subspaces. In this case, the electrical speed in third-order harmonic subspace is three times of that in fundamental subspace. The closed-loop control system performance deteriorates gradually or even becomes unstable due to cross-coupling in dq axis. Therefore, a Smith predictor-based decoupling control is proposed to eliminate the cross-coupling at low S2F frequency ratios. Additionally, the proposed method offers a solution to ensure the control stability of high-speed five-phase motors.
KW - Five-phase PMSM
KW - sampling-to-fundamental (S2F)
KW - Smith predictor
UR - http://www.scopus.com/inward/record.url?scp=85187244933&partnerID=8YFLogxK
U2 - 10.1109/PEAS58692.2023.10394931
DO - 10.1109/PEAS58692.2023.10394931
M3 - Conference contribution
AN - SCOPUS:85187244933
T3 - PEAS 2023 - 2023 IEEE 2nd International Power Electronics and Application Symposium, Conference Proceedings
SP - 518
EP - 522
BT - PEAS 2023 - 2023 IEEE 2nd International Power Electronics and Application Symposium, Conference Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2nd IEEE International Power Electronics and Application Symposium, PEAS 2023
Y2 - 10 November 2023 through 13 November 2023
ER -
