2Fukuda S, Iwaji Y. Introduction of the harmonic distortion determining factor and its application to evaluating real time PWM inverters [J]. IEEE Transactions on Industry Applications, 1995, 31(1) :149-154.
3Hamman J, Frederik S, Van Der Merwe. Voltage harmonics generated by voltage-fed inverters using PWM natural sampling[J]. IEEE Transactions on Power Electronics, 1988,3 (3) :297 - 302.
4Jang J H, Ha J I. Analysis of permanent-magnet machine for sensorless control based on high-frequency signal injection[J]. IEEE Tarns. on Industry Appilcaltons,2004, 40(6): 1595-1604.
6Jang J H,Sul S K,Ha J I.Sensorless drive of surface-mounted permanent-magnet motor by high-frequency signal injection based on magnetic saliency. IEEE.Trans.on Industry Applications . 2003
7Jang J H,Ha J I.Analysis of permanent-magnet machine for sensorless control based on high-frequency signal injection. IEEE Transactions on Industry Applications . 2004