A comparative study between an adaptive observer and an unknown inputs observer applied to PMSM

摘要

This paper presents a comparative study between two observation techniques applied to field oriented control of permanent magnet synchronous machine (PMSM). These approaches are used to estimate the PMSM machine state vector. The comparative study is done between the adaptive and the unknown inputs observer in order to choose which exhibits the highest performance. Finally, the simulation results show that the unknown inputs observer is more efficient than the adaptive observer.