TY - GEN
T1 - Design of Frequency Adaptive Sensorless Observer for Reduced DC-Link Capacitance IPMSM Drives
AU - Huo, Lujie
AU - Ding, Wen
AU - Chen, Shuo
AU - Lv, Dexu
AU - Yao, Hui
AU - Wang, Min
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - The interior permanent magnet synchronous motor (IPMSM) drive system using small-capacity film capacitors has the advantages of long operating life, low cost, and high integration. However, due to the small capacitance value of the dc-link capacitor, the dc-link voltage exhibits twice the frequency fluctuation of the grid-side voltage, which will lead to additional harmonics in the back electromotive forces (BEMFs). Eventually, this could result in a large position estimation error, thus deteriorating the performance of the sensorless control. Aiming at that, a composite complex coefficient filter (CCCF) applied to sensorless control is studied in this paper. Based on the CCCF, an improved disturbance observer is designed by adopting the reverse thinking, which is used to realize the accurate extraction of the fundamental component of the BEMF. CCCF-based disturbance observer has the band-pass characteristic, and it can realize the frequency adaptive control. Hence, the amplitude attenuation and phase lag of the BEMF can be avoided. Finally, the effectiveness of the proposed method is verified by simulation and experimental results.
AB - The interior permanent magnet synchronous motor (IPMSM) drive system using small-capacity film capacitors has the advantages of long operating life, low cost, and high integration. However, due to the small capacitance value of the dc-link capacitor, the dc-link voltage exhibits twice the frequency fluctuation of the grid-side voltage, which will lead to additional harmonics in the back electromotive forces (BEMFs). Eventually, this could result in a large position estimation error, thus deteriorating the performance of the sensorless control. Aiming at that, a composite complex coefficient filter (CCCF) applied to sensorless control is studied in this paper. Based on the CCCF, an improved disturbance observer is designed by adopting the reverse thinking, which is used to realize the accurate extraction of the fundamental component of the BEMF. CCCF-based disturbance observer has the band-pass characteristic, and it can realize the frequency adaptive control. Hence, the amplitude attenuation and phase lag of the BEMF can be avoided. Finally, the effectiveness of the proposed method is verified by simulation and experimental results.
KW - adaptive filter
KW - disturbance observer
KW - interior permanent magnet synchronous motor
KW - reduced dc-link capacitance
KW - sensorless control
UR - https://www.scopus.com/pages/publications/85182317322
U2 - 10.1109/ICEMS59686.2023.10344920
DO - 10.1109/ICEMS59686.2023.10344920
M3 - 会议稿件
AN - SCOPUS:85182317322
T3 - 2023 26th International Conference on Electrical Machines and Systems, ICEMS 2023
SP - 23
EP - 28
BT - 2023 26th International Conference on Electrical Machines and Systems, ICEMS 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 26th International Conference on Electrical Machines and Systems, ICEMS 2023
Y2 - 5 November 2023 through 8 November 2023
ER -