Harmonic Current Suppression of an AMB Rotor System at Variable Rotation Speed Based on Multiple Phase-Shift Notch Filters

• Published in: IEEE transactions on industrial electronics (1982) Vol. 63; no. 11; pp. 6962 - 6969
• Main Authors: Cui, Peiling, Li, Sheng, Wang, Qirui, Gao, Qian, Cui, Jian, Zhang, Huijuan
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.11.2016; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Active magnetic bearing (AMB); Harmonic analysis; Magnetic levitation; Magnetic separation; mass imbalance; notch filter; Notch filters; Power harmonic filters; rotor system; Rotors; sensor runout; Vibrations

An active magnetic bearing (AMB) rotor system has such advantages as no friction and active vibration control. However, harmonic current caused by mass imbalance and sensor runout of magnetically suspended rotor system will lead to harmonic vibration. The harmonic current frequency is changed with t...