TY - GEN
T1 - Analysis and suppression of magnetically levitated rotor vibration influence for high-speed permanent magnet motor sensorless control
AU - Mao, Kun
AU - Zheng, Shiqiang
AU - Liu, Gang
N1 - Publisher Copyright:
© 2016 The Institute of Electrical Engineers of Japan.
PY - 2017/1/30
Y1 - 2017/1/30
N2 - Position Sensorless control strategies based on back-EMF detection have been widely used in the high-speed permanent magnet motors with active magnetic bearings (AMBs). However, due to the rotor vibration, the air gap flux density of motors varies with different rotor position, which introduces the distortion of back-EMF detection. In order to reduce this blight, some researches have been conducted in this paper. Firstly, different kinds of rotor vibrations are analyzed, such as residual unbalance, torque ripple and etc. The vibration while rotor runs near the critical speed of rigid mode is hardly completely suppressed by active vibration control or dynamic balance. Secondly, the influence of rotor position estimation is analyzed. Hence, an improved rotor speed estimator composed of adaptive speed notch filter (ANF) instead of fixed frequency notch filters is proposed. The experimental results confirm the feasibility and effectiveness of the proposed method.
AB - Position Sensorless control strategies based on back-EMF detection have been widely used in the high-speed permanent magnet motors with active magnetic bearings (AMBs). However, due to the rotor vibration, the air gap flux density of motors varies with different rotor position, which introduces the distortion of back-EMF detection. In order to reduce this blight, some researches have been conducted in this paper. Firstly, different kinds of rotor vibrations are analyzed, such as residual unbalance, torque ripple and etc. The vibration while rotor runs near the critical speed of rigid mode is hardly completely suppressed by active vibration control or dynamic balance. Secondly, the influence of rotor position estimation is analyzed. Hence, an improved rotor speed estimator composed of adaptive speed notch filter (ANF) instead of fixed frequency notch filters is proposed. The experimental results confirm the feasibility and effectiveness of the proposed method.
KW - AMB
KW - high-speed PM motor
KW - rotor vibration
KW - sensorless control
UR - https://www.scopus.com/pages/publications/85015065209
M3 - 会议稿件
AN - SCOPUS:85015065209
T3 - 19th International Conference on Electrical Machines and Systems, ICEMS 2016
BT - 19th International Conference on Electrical Machines and Systems, ICEMS 2016
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 19th International Conference on Electrical Machines and Systems, ICEMS 2016
Y2 - 13 November 2016 through 16 November 2016
ER -