Sensorless-FOC With Flux-Weakening and MTPA for IPMSM Motor Drives

Theinteriorpermanent-magnetsynchronousmotor(IPMSM)forvariablespeedapplicationsbecamepopularwiththesensorlessFieldOrientedControl(FOC)techniqueinindustrialandautomotivesystemsbecauseofhighpowerdensity,highefficiencyandfastdynamicperformance.Thisapplicationreportdescribeshowtoimplementaflux-