TY - GEN
T1 - An Improved Speed Observer Based on Current Prediction Compensation for PMSM Sensorless Control
AU - Chen, Zhe
AU - Gao, Cong
AU - Chen, Peiyang
AU - Li, Jincheng
AU - Zhang, Hang
AU - Luo, Guangzhao
N1 - Publisher Copyright:
© 2024 The Institute of Electrical Engineers of Japan.
PY - 2024
Y1 - 2024
N2 - Traditional natural speed observer of PMSM sensorless control system has shortcomings such as poor dynamic response and large chattering. To solve these problems, this paper proposes an improved speed observer by replacing the exponential approaching law with a power-exponent approaching law. And the proposed observer further combines a current prediction compensation algorithm to reduce the digital control delay and sampling filtering delay of control system. It can optimize the input current signal of the speed observer and improve the dynamic and steady-state performance of rotor speed estimation. The experiment verified the effectiveness of the algorithm.
AB - Traditional natural speed observer of PMSM sensorless control system has shortcomings such as poor dynamic response and large chattering. To solve these problems, this paper proposes an improved speed observer by replacing the exponential approaching law with a power-exponent approaching law. And the proposed observer further combines a current prediction compensation algorithm to reduce the digital control delay and sampling filtering delay of control system. It can optimize the input current signal of the speed observer and improve the dynamic and steady-state performance of rotor speed estimation. The experiment verified the effectiveness of the algorithm.
KW - a current prediction compensation algorithm
KW - a power-exponent approaching law
KW - An improved speed observer
UR - http://www.scopus.com/inward/record.url?scp=105002378825&partnerID=8YFLogxK
U2 - 10.23919/ICEMS60997.2024.10921275
DO - 10.23919/ICEMS60997.2024.10921275
M3 - 会议稿件
AN - SCOPUS:105002378825
T3 - 2024 27th International Conference on Electrical Machines and Systems, ICEMS 2024
SP - 3284
EP - 3289
BT - 2024 27th International Conference on Electrical Machines and Systems, ICEMS 2024
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 27th International Conference on Electrical Machines and Systems, ICEMS 2024
Y2 - 26 November 2024 through 29 November 2024
ER -