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1 Introduction Itiswellknownthatthetorquedevelopedbyapermanentmagnetbrushlessdcmotorisproportionaltothemagnitudeofmotorphasecurrents.ThislinearrelationshipmakesitconvenienttocontrolBLDCMtorqueproductionbyregulatingthemotorphasecurrents[1].Inthispaper,thei