Sim, Hyun-Woo, June-Seok Lee, and Kyo-Beum Lee. "A Simple Strategy for Sensorless Speed Control for an IPMSM During Startup and Over Wide Speed Range." Journal of Electrical Engineering & Technology 9.5 (2014): 1582-1591.
Chen, Zhiqian, et al. "An extended electromotive force model for sensorless control of interior permanentmagnet synchronous motors." Industrial Electronics, IEEE Transactions on 50.2 (2003): 288-295.
Morimoto, Shigeo, et al. "Sensorless control strategy for salient-pole PMSM based on extended EMF in rotating reference frame." Industry Applications Conference, 2001. Thirty-Sixth IAS Annual Meeting. Conference Record of the 2001 IEEE. Vol. 4. IEEE, 2001.
Imaeda, Yukitsugu, et al. "PMSM position sensorless control with extended flux observer." IECON 2011-37th Annual Conference on IEEE Industrial Electronics Society. IEEE, 2011.
Lee, Jung-Hyo, et al. "A new hybrid sensorless method using a back EMF estimator and a current model of permanent magnet synchronous motor."Power Electronics Specialists Conference, 2008. PESC 2008. IEEE. IEEE, 2008.
Lin, Hai, Kyu-Yun Hwang, and Byung-Il Kwon. "An improved flux observer for sensorless permanent magnet synchronous motor drives with parameter identification." Journal of Electrical Engineering and Technology 8.3 (2013): 516-523.
Foo, Gilbert Hock Beng, and M. F. Rahman. "Direct torque control of an IPM-synchronous motor drive at very low speed using a sliding-mode stator flux observer." Power Electronics, IEEE Transactions on 25.4 (2010): 933-942.
Wu, Rusong, and Gordon R. Slemon. "A permanent magnet motor drive without a shaft sensor." Industry Applications, IEEE Transactions on 27.5 (1991): 1005-1011.
Omrane, Ines, et al. "Modeling and simulation of soft sensor design for real-time speed and position estimation of PMSM." ISA transactions (2015).
Zhu, Hao, Xi Xiao, and Yongdong Li. "A simplified high frequency injection method for PMSM sensorless control." Power Electronics and Motion Control Conference, 2009. IPEMC'09. IEEE 6th International. IEEE, 2009.
Shehata, E. G. "Speed sensorless torque control of an IPMSM drive with online stator resistance estimation using reduced order EKF." International Journal of Electrical Power & Energy Systems 47 (2013): 378-386.
Kim, Y. S., Y. K. Choi, and J. H. Lee. "Speed- sensorless vector control for permanent-magnet synchronous motors based on instantaneous reactive power in the wide-speed region." Electric Power Applications, IEE Proceedings-. Vol. 152. No. 5. IET, 2005.
J. Clerk Maxwell, A Treatise on Electricity and Magnetism, 3rd ed., vol. 2. Oxford: Clarendon, 1892, pp. 68-73.
Sackmann, Martin, and Volker Krebs. "Nonlinear control of a continuously variable transmission using hyperstability theory." Proc. of the European Control Conference. Karlsruhe, Germany. 1999.
Olivieri, C., and M. Tursini. "A novel PLL scheme for a sensorless PMSM drive overcoming common speed reversal problems." Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM), 2012 International Symposium on. IEEE, 2012.