矿用电机漏电闭锁保护的仿真研究

(215004)PscADEMTDcPSCADEMTDCSimulationonEarthLeakageLockoutProtectionforMineInductionMotorLishihua(SuzhouPowerSupplyCompany,SuzhouJiangsu215004)AbstractElectromagnetictransientsimulationsoftwarePSACDEMTDCisusedtocarryoutsimulationonthecounter-emfphenomenonwhenthepowersupplyofthemotorissuddenlycutoffInadditiontheeffectofcounter-emfonearthleakagelockoutprotectionisanalyzedandsomesuggestionsandpointsarepresentedinthispaperKeywordscounter-emilearthleakagelockoutprotectionPSCADEMTDCinductionmotor12030()119521IPSCADEMTDC22200812J25[f|)c)4l()214lJ1iujSKCoaCBCc(1)+D=++RJ(A)26I200812=rAAB_==r===rc=r=(1)Kus=sR,2BB(3)2(3)J22[I,711140V660V(401)kQ(221)kQ=iI'J331526LJL2Rr22e_=UR(4)3dd-qeqiBclark_na-#ipPWM0(4)eclarkiae(4)iaiBpark16Jeqffd(4)=__laOr,332()4F4EMTDC5524V6200812$1f27746}?+7IE24V8H{IJ2V5slOV60V(15V)J1orr_1ojjj828l200812PSCADEMTDC4ilJ_J1qk}fj1987220053]200342002(3)32355200737(3)1518[61992[719979295(1980)