电气工程与自动化专业英语 教学课件 作者 王伟 4.pptx

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1、4.1　IntroductionFig.4-1　Powerelectronicsinterfacebetweenthesourceandtheload4.2　ApplicationsandtheRolesofPowerElectronics4.2.1　PoweringtheInformationTechnology4.2.2　RoboticsandFlexibleProduction4.2.1　PoweringtheInformationTechnologyFig.4-2　Regulatedlow-voltageDCp

2、owersupplie4.2.1　PoweringtheInformationTechnologyFig.4-3　BoostDC-DCconverterneededincellequipment4.2.2　RoboticsandFlexibleProductionFig.4-4　Blockdiagramofadjustablespeeddrives4.2.2　RoboticsandFlexibleProductionFig.4-5　Powerelectronicsinterfacerequiredforelectric

3、heating4.2.2　RoboticsandFlexibleProductionFig.4-6　Powerelectronicsinterfacerequiredforelectricalwelding4.3　EnergyandEnvironment4.3.1　EnergyConservation4.3.2　RenewableEnergy4.3.3　UtilityApplicationsofPowerElectronics4.3.4　StrategicSpaceandDefenseApplications4.3.1

4、　EnergyConservationFig.4-7　Roleofadjustablespeeddrivesinpump-drivensystem1.Electric-motor2.Lighting3.Transportation4.3.2　RenewableEnergyFig.4-8　PhotovoltaicSystem4.3.2　RenewableEnergyFig.4-9　Wind-electricsystem4.3.3　UtilityApplicationsofPowerElectronicsApplicati

5、onsofpowerelectronicsandelectricaldrivesinpowersystemsaregrowingrapidly.Indistributedgeneration,powerelectronicsisneededtointerfacenon-conventionalenergysourcessuchaswind,photovoltaic,andfuelcellstotheutilitygrid.Useofpowerelectronicsallowscontroltheflowofpowero

6、ntransmissionlines.Itisespeciallysignificantinaderegulatedutilityenvironment.Also,thesecurityandtheefficiencyofpowersystemsoperationincreasetheuseofpowerelectronicsinutilityapplications.4.3.4StrategicSpaceandDefenseApplicationsPowerelectronicsisessentialforspace

7、explorationandinterplanetarytravel.Defensehasalwaysbeenanimportantapplication.Powerelectronicswillplayahugeroleintanks,ships,andplanesinwhichthereplacementofhydraulicdrivesbyelectricaldrivescanoffersignificantcost,weightandreliabilityadvantages.4.4　StructureofPo

8、werElectronicsInterface4.4.1　Voltage-LinkStructure4.4.2　Current-LinkStructure4.4.3　MatrixConverters(Direct-LinkStructure)4.4　StructureofPowerElectronicsInterfaceFig.4