TY - JOUR
T1 - Smooth Low-Speed Sensorless Control of Switched Reluctance Machine With Heavy Load
AU - Song, Shoujun
AU - Zhong, Jixi
AU - Yang, Chenyi
AU - Bao, Chong
AU - Ge, Lefei
AU - Fu, Zhaoyang
AU - Ma, Ruiqing
AU - Liu, Weiguo
N1 - Publisher Copyright:
© 1982-2012 IEEE.
PY - 2024/4/1
Y1 - 2024/4/1
N2 - For the switched reluctance machine (SRM) with a heavy load, the inductance of the conduction phase is nonlinear, which makes the sensorless control method based on the linear region of the phase inductance no longer applicable. Meanwhile, in the case of light or no load, the estimated rotor position will abruptly change at the connection points between neighboring segments, which has an impact on the estimation of the speed. In this article, a low-speed sensorless control method for the SRM with a heavy load is proposed. The idle-phase inductance is modeled over a wide rotor position range for position estimation, and a proportional gain decreasing type second-order generalized integrator based on a frequency-locked loop is constructed to estimate the speed while performing rotor position filtering. The effectiveness of the proposed method is experimentally verified with a 3-phase 12/8-pole SRM prototype, and the results show that the estimated rotor position and speed are accurate and smooth, which is beneficial to performance improvement of the sensorless control.
AB - For the switched reluctance machine (SRM) with a heavy load, the inductance of the conduction phase is nonlinear, which makes the sensorless control method based on the linear region of the phase inductance no longer applicable. Meanwhile, in the case of light or no load, the estimated rotor position will abruptly change at the connection points between neighboring segments, which has an impact on the estimation of the speed. In this article, a low-speed sensorless control method for the SRM with a heavy load is proposed. The idle-phase inductance is modeled over a wide rotor position range for position estimation, and a proportional gain decreasing type second-order generalized integrator based on a frequency-locked loop is constructed to estimate the speed while performing rotor position filtering. The effectiveness of the proposed method is experimentally verified with a 3-phase 12/8-pole SRM prototype, and the results show that the estimated rotor position and speed are accurate and smooth, which is beneficial to performance improvement of the sensorless control.
KW - Pulse injection
KW - rotor position estimation
KW - second-order generalized integrator
KW - sensorless control
KW - speed estimation
KW - switched reluctance machine (SRM)
UR - http://www.scopus.com/inward/record.url?scp=85159805310&partnerID=8YFLogxK
U2 - 10.1109/TIE.2023.3273278
DO - 10.1109/TIE.2023.3273278
M3 - 文章
AN - SCOPUS:85159805310
SN - 0278-0046
VL - 71
SP - 3361
EP - 3370
JO - IEEE Transactions on Industrial Electronics
JF - IEEE Transactions on Industrial Electronics
IS - 4
ER -