矢量变频器在茶叶烘焙时间控制中的应用Ξ

X12211(361005)2(361005):;;,;;RS485;;;ApplicationofVectorFrequencyConvertersinTeaBakingTimeControlZhengZhenyao1CaoZhikai2JiangQingyin2ChenZhong11(DepartmentofPhysics,XiamenUniversity,Xiamen361005,China)2(DepartmentofChemicalEngineering,XiamenUniversity,Xiamen361005,China)AbstractMainproblemsforteabakingtimecontrolarethatthecontrolmodelbetweenthemoisturecontentofteaandthebakingtimewasnotbuilt;bakingboxeswerenotcentralizedautomaticallycontrolled;thebakingtimehadnotrackingrecord.Itisimproveduponthegearing:controlledtransportelectromotorsbasedonvectorcontrolfrequencyconverters(VCFC),controlledcentralizedautomaticallyVCFCbasedontheRS485bus,builtacontrolmodelforbakingboxes,builtamathematicalmodelbetweenthebaking2timeandthefrequencyofVCFC.Thecomputersavedcontrolparameterstothedatabaseandprintedreports.Theresultsshowthattheimprovementiseffectiveandfeasible.KeywordsVectorcontrolFrequencyconverterTeabakingtimecontrol1,[1],2,,,,,[2],,110,,26820058X(0041-K81035),3,,,,[1],,,,,,VFD-B,VFD-B,ö,RS485Modbus,,,111#2#3#,4,RS485,,,,,,RS48530m;30m,L,dvödt,;;;,,,,,,,,,SPWM,PWM,PWM;4,,,(872)968825,CAN,,,,,,,DSP;,;,,;CAN1BOSCH.CANspecification,Version2.0.1991.http:öö:,2000.1830.3,..,2003,25(2):101104.4.CAN.:,1996.(869)1.(1).,2001(2):79.2..:,2000.133139.3,.MM440.,2004(10):6365.27826