TY - GEN
T1 - On-line detection of rotor eccentricity for PMSMs based on hall-effect field sensor measurements
AU - Park, Yonghyun
AU - Fernandez, Daniel
AU - Lee, Sang Bin
AU - Hyun, Doosoo
AU - Jeong, Myung
AU - Kommuri, Suneel Kumar
AU - Cho, Changhee
AU - Reigosa, David
AU - Briz, Fernando
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/11/3
Y1 - 2017/11/3
N2 - Rotor eccentricity in permanent magnet synchronous motors (PMSMs) increases unbalanced magnetic pull and motor vibration resulting in accelerated aging of motor components. If eccentricity remains undetected, it can increase in severity, and increase the risk of stator-rotor contact, which causes forced outage of the motor and driven process. Detection of eccentricity currently relies on off-line testing and on-line vibration/current spectrum analysis, which are inconvenient or cannot provide reliable detection as they are influenced by other mechanical non-idealities in the motor or load. In this paper, the feasibility of using the signals from analog Hall-effect field sensors for detecting eccentricity is investigated. It is shown that Hall sensors already present in machines for motion control can be used for measuring the variation in the flux inside the motor due to eccentricity. 3-dimensional (3D) finite element analysis (FEA) and experimental results performed on an interior PMSM (IPMSM) show that the proposed method can provide sensitive and reliable detection of dynamic and mixed eccentricity with minimal hardware modifications.
AB - Rotor eccentricity in permanent magnet synchronous motors (PMSMs) increases unbalanced magnetic pull and motor vibration resulting in accelerated aging of motor components. If eccentricity remains undetected, it can increase in severity, and increase the risk of stator-rotor contact, which causes forced outage of the motor and driven process. Detection of eccentricity currently relies on off-line testing and on-line vibration/current spectrum analysis, which are inconvenient or cannot provide reliable detection as they are influenced by other mechanical non-idealities in the motor or load. In this paper, the feasibility of using the signals from analog Hall-effect field sensors for detecting eccentricity is investigated. It is shown that Hall sensors already present in machines for motion control can be used for measuring the variation in the flux inside the motor due to eccentricity. 3-dimensional (3D) finite element analysis (FEA) and experimental results performed on an interior PMSM (IPMSM) show that the proposed method can provide sensitive and reliable detection of dynamic and mixed eccentricity with minimal hardware modifications.
KW - Axial leakage flux
KW - Condition monitoring
KW - Finite element analysis
KW - Hall effect field sensor
KW - Permanent magnet synchronous motor
KW - Rotor eccentricity
UR - http://www.scopus.com/inward/record.url?scp=85041480370&partnerID=8YFLogxK
U2 - 10.1109/ECCE.2017.8096798
DO - 10.1109/ECCE.2017.8096798
M3 - Conference Proceeding
AN - SCOPUS:85041480370
T3 - 2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017
SP - 4678
EP - 4685
BT - 2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017
Y2 - 1 October 2017 through 5 October 2017
ER -