A Study of the Degradation of Electronic Speed Controllers for Brushless DC Motors
##plugins.themes.bootstrap3.article.main##
##plugins.themes.bootstrap3.article.sidebar##
Abstract
Brushless DC motors are frequently used in electric aircraft and other direct drive applications. As these motors are not actually direct current machines but synchronous alternating current machines; they are electronically commutated by a power inverter. The power inverter for brushless DC motors typically used in small scale UAVs is a semiconductor based electronic commutator that is external to the motor and is referred to as an electronic speed control (ESC). This paper examines the performance changes of a UAV electric propulsion system resulting from ESC degradation. ESC performance is evaluated in simulation and on a new developed testbed featuring propulsion components from a reference UAV. An increase in the rise/fall times of the switched voltages is expected to cause timing issues at high motor speeds. This study paves the way for further development of diagnostic
and prognostic methods for inverter circuits which are part of the overall electric UAV system.
##plugins.themes.bootstrap3.article.details##
PHM
C.Batard, Poitiers, F., Millet, C., & Ginot, N. (2012, September). Simulation of power converters using matlabsimulink. INTECH, 1.
Celaya, J. R., Kulkarni, C., Biswas, G., Saha, S., & Goebel, K. (2011). A model-based prognostics methodology for electrolytic capacitors based on electrical overstress accelerated aging. In Proceeding of annual conference of the prognostics and health management society (pp. 1–9).
Gopalarathnam, T., Toliyat, H. A., & Moreira, J. C. (2000). Multi-phase fault-tolerant brushless dc motor drives. In Industry applications conference, 2000. conference record of the 2000 ieee (Vol. 3, pp. 1683–1688).
Krishnan, R. (2009). Permanent magnet synchronous and brushless dc motor drives. CRC Press.
Kulkarni, C. S., Celaya, J. R., Biswas, G., & Goebel, K. (2012). Towards a model-based prognostics methodology for electrolytic capacitors: A case study based on electrical overstress accelerated aging. International Journal of Prognostics and Health Management, 5(1), 16.
Moseler, O., & Isermann, R. (2000). Application of modelbased fault detection to a brushless dc motor. IEEE Transactions on industrial electronics, 47(5), 1015–1020.
Park, B.-G., Kim, T.-S., Ryu, J.-S., & Hyun, D.-S. (2006). Fault tolerant strategies for bldc motor drives under switch faults. In Industry applications conference, 2006. 41st ias annual meeting. conference record of the 2006 ieee (Vol. 4, pp. 1637–1641).
Park, B.-G., Lee, K.-J., Kim, R.-Y., Kim, T.-S., Ryu, J.-S., & Hyun, D.-S. (2011). Simple fault diagnosis based on operating characteristic of brushless direct-current motor drives. IEEE Transactions on Industrial Electronics, 58(5), 1586–1593.
Rao, A., Purna, C., Obulesh, Y. P., & Babu, C. S. (2012). Mathematical modeling of bldc motor with closed loop speed control using pid controllers under various loading conditions. ARPN Journal of Applied Sciences and Engineering.
Speed, R., & Wallace, A. K. (1990). Remedial strategies for brushless dc drive failures. IEEE Transactions on industry Applications, 26(2), 259–266.