1S. Bolognani, R. Oboe, M. Zigliotto. Sensorless Full-Digital PMSM Drive With EKF Estimation of speed and Rotor Position [J]. IEEE Trans. Ind. Electron. ,1999,46(1):184-190.
2Joachim Lindstr om. An Experimental Permanent-Magnet Motor Drive-System Description and Preliminary Measurements [M ], Chalmers University of Technology, 1999.