PUBLICATIONS

The sensorless speed control using the improved full-order flux observer for PMSM is proposed in this paper. A conventional full-order

flux observer has a drawback that the estimated flux of this observer contains the ripple component at the low speed range due to

the increased gains of the convectional full-order flux observer. The improved full-order flux observer with the modified gains guarantee

the improved estimation performance without ripple component at the from zero to high speed range. To identify the performance of

proposed observer, the simulation and experiment are conducted and this performance is compared with the conventional full-order

observer.