Abstract
The method based on back electromotive force (EMF) of brushless direct current (BLDC) motor is one of the major approaches for rotor position estimation because of the advantages of simple and reliable detection. However, the position estimation precision is affected by different pulse width modulation (PWM) strategies. This paper presents a novel PWM strategy for position detection based on the zero-crossing of back EMF. Five traditional kinds of PWM strategies for BLDC motor are analyzed and compared. Through the analysis to the diode freewheeling currents in the unexcited phase on non-commutation period, the applicable PWM strategies are obtained corresponding to above rotor position identification methods. On the basis, a novel PWM scheme is proposed for position sensorless control of BLDC motor drives and it can reduce the diode freewheeling current. Simulation and experimental results show the good performance for the proposed PWM scheme in position estimation for sensorless BLDC motor drives.
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References
Wu, H.X., Cheng, S.K., Cui, S.M.: A controller of brushless dc motor for electric vehicle. IEEE Transactions on Magnetics 41, 509–513 (2005)
Moreira, J.C.: Indirect sensing for rotor flux position of permanent magnet AC motors operating over a wide speed range. IEEE Transactions on Industry Applications 32, 1394–1401 (1996)
Wu, H.X., Cheng, S.K., Cui, S.M.: A controller of brushless dc motor for electric vehicle. IEEE Transactions on Magnetics 41, 509–513 (2005)
Li, Z., Cheng, S., Qin, Y., Cai, K.: A novel line-to-line back EMF calculation for sensorless brushless DC motor drivers. In: The 11th International Conference on Electrical Machines and Systems, pp. 1406–1411 (2008)
Zhou, G.F., Wu, Z.G., Ying, J.P.: Unattenuated BEMF detection for sensorless brushless DC motor drives. In: Proceedings of 4th International Power Electronics and Motion Control Conference, pp. 1899–1902 (2005)
Lai, Y.S., Lin, Y.K.: A unified approach to back-EMF detection for brushless DC motor drives without current and hall sensors. IEEE Transactions on Power Electronics 18, 1293–1298 (2003)
Chen, C.H., Cheng, M.Y.: A new cost effective sensorless commutation method for brushless DC motors without phase shift circuit and neutral voltage. IEEE Transactions on Power Electronics 22, 644–653 (2007)
Wu, Y., Deng, Z., Wang, X., Ling, X., Cao, X.: Position sensorless control based on coordinate transformation for brushless DC motor drives. IEEE Transactions on Power Electronics 25, 2365–2371 (2010)
Lee, D.-M., Lee, W.-C.: Analysis of relationship between abnormal current and position detection error in sensorless controller for interior permanent-magnet brushless DC motors. IEEE Transactions on Magnetics 44, 2074–2081 (2008)
Shao, J.W., Nolan, D., Teisier, M., et al.: A novel microcontroller-based sensorless brushless DC motor drive for automotive fuel pumps. IEEE Transactions on Industry Applications 39, 1734–1740 (2003)
Damodharan, P., Vasudevan, K.: Indirect back-EMF zero crossing detection for sensorless BLDC motor operation. In: Proceedings of International Conference on Power Electronics and Drives Systems, pp. 1107–1111 (2005)
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Li, Z., Yin, Z., Xiong, Yl. (2013). A Novel PWM Scheme for Position Sensorless Control of BLDC Motor Drives Based on Back EMF. In: Lee, J., Lee, M.C., Liu, H., Ryu, JH. (eds) Intelligent Robotics and Applications. ICIRA 2013. Lecture Notes in Computer Science(), vol 8103. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-40849-6_55
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DOI: https://doi.org/10.1007/978-3-642-40849-6_55
Publisher Name: Springer, Berlin, Heidelberg
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