17/09/2014School ofMarineNewcastleScience&TechnologyJniversittElectricandHybridPropulsionVisit to Wuhan Universityof TechnologyDr Rose NormanSeptember2014www.ncl.ac.uk/marineSchoolofMarineNewcastleScience&TechnologyUniversityAContentsIntroduction·MotorTechnology.PowerConverterTechnology.IntegratedFull ElectricPropulsion·HybridPropulsionSystems.Summary1
17/09/2014 1 Electric and Hybrid Propulsion Visit to Wuhan University of Technology Dr Rose Norman September 2014 Contents • Introduction • Motor Technology • Power Converter Technology • Integrated Full Electric Propulsion • Hybrid Propulsion Systems • Summary
17/09/2014SchoolofMarineNewcastleScience&TechnologyJniversittIntroductionOriginsofelectricpropulsionarefrom1gthCenturyBatterypoweredDCmotorsETurbo-electricsystemintroducedincommercialshipsinlate1920sTurbinesrunningatoptimumpoint-ElectrictransmissionofpowerAdditionallossesbecauseofpowerconversionstepswww.ncl.ac.uk/marineSchoolofMarineNewcastleScience&TechnologyUniversityIntroductionDieselelectricpropulsionselectedforQE2refitin1986288@UO日-Twosynchronousmotors(44MW9?each)11IXControllablepitchpropellers10kV60HzSynchroconverterscapableof中givingvariablespeedoperationonlyatlowerspeedsT--o好*30申03.3kvmann2
17/09/2014 2 Introduction • Origins of electric propulsion are from 19th Century – Battery powered DC motors • Turbo-electric system introduced in commercial ships in late 1920s – Turbines running at optimum point – Electric transmission of power – Additional losses because of power conversion steps Introduction • Diesel electric propulsion selected for QE2 refit in 1986 – Two synchronous motors (44MW each) – Controllable pitch propellers – Synchro converters capable of giving variable speed operation only at lower speeds G~ G~ G~ G~ G~ G~ G~ G~ G~ A B C D E F G H I M M ~ ~ 3.3kV 10kV 60Hz
17/09/2014School of MarineNewcastleScience&TechnologyJniversittIntroductionDieselelectricpropulsionShaftlineorpoddedarrangementswww.ncl.ac.uk/marineSchoolofMarineNewcastleUniversityScience&TechnologyMotor TechnologyTraditionalmotorselection:High PowerMedium/LowPowerMedium/LowPower>5MW1-5MW1-5MWDCMotorSynchronous MotorInduction MotorBrushless ExciterSquirrel cageCommutatorman3
17/09/2014 3 Introduction • Diesel electric propulsion – Shaft line or podded arrangements Motor Technology • Traditional motor selection: High Power >5MW Synchronous Motor Brushless Exciter Medium/Low Power 1-5MW Induction Motor Squirrel cage Medium/Low Power 1-5MW DC Motor Commutator
17/09/2014School of MarineNewcastleScience&TechnologyJniversittMotor TechnologyRecentmotordevelopments-AdvancedinductionmotororcompactinductionmotorHigherpowerratingthanALSTOMconventionalIM20MWCompactandreducedweightwww.ncl.ac.uk/marineSchoolofMarineNewcastleScience&TechnologyUniversityMotor TechnologyFuturemotordevelopmentsRotorMagnetsStalor coreBrusExciterRefrigeratiorCopperMotoHiahtemperature180-250 tosuperconductormotorArmeaune5.6800TransverseFluxmotor4
17/09/2014 4 Motor Technology • Recent motor developments – Advanced induction motor or compact induction motor – Higher power rating than conventional IM 20MW – Compact and reduced weight Motor Technology • Future motor developments Transverse Flux motor High temperature superconductor motor
17/09/2014SchoolofMarineNewcastleScience&TechnologyUniversityPower Converter TechnologyDieselACDCMG二EngineDCmotorwithchoppercircuitDieselAC/ACMGEngineACmotorwithcycloconverterDieselDOACHCMEngineADC：ACmotorwithsynchroconverterorPWMinverterwww.ncl.ac.uk/marineSchoolofMarineNewcastleScience&TechnologyHUniversityPowerConverter TechnologyCycloconvertersystems?O?99经YY-o5
17/09/2014 5 Power Converter Technology Diesel Engine ~ G = AC M DC Diesel Engine ~ G ~ AC M DC DC AC Diesel Engine ~ G ~ AC M AC • DC motor with chopper circuit • AC motor with cycloconverter • AC motor with synchro converter or PWM inverter Power Converter Technology • Cycloconvertersystems G~ G~ G~ G~ G~ G~ G~ M~ G~ M~