Dynamic eccentricity and demagnetized rotor magnet detection in trapezoidal flux (Brushless DC) motors operating under different load conditions

IEEE Transactions on Power Electronics

Volumn 22, Issue 5, 2007, Pages 2061-2069

  Rajagopalan, Satish ^a,b   le Roux, Wiehan ^c   Habetler, Thomas G ^a   Harley, Ronald G ^a  

^a GEORGIA INSTITUTE OF TECHNOLOGY   (United States)

^b Electric Power Research Institute EPRI   (United States)

^c UNIVERSITY OF PRETORIA   (South Africa)

Author keywords

Brushless dc (BLDC); Condition monitoring; Eccentricity; Electric machines; Finite element analysis (FEA); Varying load

Indexed keywords

DEMAGNETIZATION; ELECTRIC CURRENTS; FINITE ELEMENT METHOD; MAGNETIC FLUX; ROTORS; TORQUE;

DYNAMIC ECCENTRICITY; TRAPEZOIDAL FLUX;

BRUSHLESS DC MOTORS;

EID: 34548741319     PISSN: 08858993     EISSN: None     Source Type: Journal    
DOI: 10.1109/TPEL.2007.904183     Document Type: Article

References (11)

1. P. Yedamale, Brushless DC (BLDC) Motor Fundamentals. Chandler, AZ: Microchip Technology, Inc., 2007 [Online]. Available: http:// ww1.microchip.com/downloads/en/AppNotes/00885a.pdf
2. S. Nandi and H. A. Toliyat, "Condition monitoring and fault diagnosis of electrical machines - A review," in Proc. 34th Annu. IEEE Ind. Appl. Meeting, 1999, pp. 197-204.
3. J. M. Cameron, W. T. Thomson, and A. B. Dow, "Vibration and current monitoring for detecting airgap eccentricity in large induction motors," Proc. Inst. Elect. Eng., vol. 133, no. 3, pp. 155-163, 1986.
4. A. Jornet, J. Cusido, A. G. Espinosa, J. A. Ortega, and L. Romeral, "Double frequency test for detecting faults in induction machines," in Proc. IEEE IECON, 2005, pp. 1-6.
5. J. M. Cameron, W. T. Thomson, and A. B. Dow, "On-line current monitoring of induction motors - A method for calculating the level of airgap eccentricity," in Proc. 3rd Int. Conf. Elect. Mach. Drives 1987, pp. 173-178.
6. D. G. Dorell, W. T. Thomson, and S. Roach, "Analysis of airgap flux, current, and vibration signals as a function of the combination of static and dynamic airgap eccentricity in 3-phase induction motors," IEEE Trans. Ind. Appl., vol. 33, no. 1, pp. 24-34, Jan./Feb. 1997.
7. G. B. Kliman and J. Stein, "Methods of motor current signature analysis," Elect. Mach. Power Syst., vol. 20, no. 5, pp. 463-474, Sep. 1992.
8. W. le Roux, R. G. Harley, and T. G. Habetler, "Detecting rotor faults in permanent magnet synchronous machines," in Proc. 4th Int. Symp. Diag. Elect. Mach., Power Electron. Drives, 2003, pp. 198-203.
9. J. Shao;, D. Nolan, and T. Hopkins, "Improved direct back EMF detection for sensorless brushless DC (BLDC) motor drives," in Proc. 18th Annu. IEEE Appl. Power Electron. Conf. Expo (APEC'03), 2003, pp. 300-305.
10. J. Hu, D. M. Dawson, and K. Anderson, "Position control of a brushless dc motor without velocity measurements," Proc. Inst. Elect. Eng., vol. 142, pp. 113-119, 1995.
11. R. R. Schoen, "On-Line Current-Based Condition Monitoring of Three-Phase Induction Machines," Ph.D. dissertation, Georgia Inst. Technol., Atlanta, 1994.