TY - JOUR
T1 - A nonlinear extended state observer for rotor position and speed estimation for sensorless IPMSM Drives
AU - Xu, Zhuang
AU - Zhang, Tianru
AU - Bao, Yuli
AU - Zhang, He
AU - Gerada, Chris
N1 - Publisher Copyright:
© 1986-2012 IEEE.
PY - 2020/1
Y1 - 2020/1
N2 - Sensorless machine drives in vehicle traction frequently experience rapidly-changing load disturbance and demand fast speed dynamics. Without gain-scheduling or compensation, conventional quadrature phase-locked-loop (Q-PLL) is unable to accurately estimate the rotor position and speed for these systems. In this paper, a third-order nonlinear extended state observer (TNESO) is proposed for position and speed estimation for sensorless interior permanent magnet synchronous motor drives. TNESO has the power of nonlinear feedback and takes the advantages of fast convergence and disturbance rejection. An optimized parameter configuration method is deployed to extend the disturbance observation bandwidth of the TNESO. Both steady state and transient performance of TNESO are verified through the experimental tests. In comparison with the performance of conventional Q-PLL scheme, the proposed observer is proved to be capable of delivering higher precision of position and speed estimation against rapidly varying disturbance in wide operating range.
AB - Sensorless machine drives in vehicle traction frequently experience rapidly-changing load disturbance and demand fast speed dynamics. Without gain-scheduling or compensation, conventional quadrature phase-locked-loop (Q-PLL) is unable to accurately estimate the rotor position and speed for these systems. In this paper, a third-order nonlinear extended state observer (TNESO) is proposed for position and speed estimation for sensorless interior permanent magnet synchronous motor drives. TNESO has the power of nonlinear feedback and takes the advantages of fast convergence and disturbance rejection. An optimized parameter configuration method is deployed to extend the disturbance observation bandwidth of the TNESO. Both steady state and transient performance of TNESO are verified through the experimental tests. In comparison with the performance of conventional Q-PLL scheme, the proposed observer is proved to be capable of delivering higher precision of position and speed estimation against rapidly varying disturbance in wide operating range.
KW - Permanent magnet synchronous motor (PMSM)
KW - sensorless control
KW - variable speed drives
UR - http://www.scopus.com/inward/record.url?scp=85074213205&partnerID=8YFLogxK
U2 - 10.1109/TPEL.2019.2914119
DO - 10.1109/TPEL.2019.2914119
M3 - Article
AN - SCOPUS:85074213205
SN - 0885-8993
VL - 35
SP - 733
EP - 743
JO - IEEE Transactions on Power Electronics
JF - IEEE Transactions on Power Electronics
IS - 1
M1 - 8703133
ER -