PLC控制的變頻調速系統(tǒng)在龍門起重機的應用.pdf

1、分類號I膣9UDC——密級——V736011學校代號!Q!學號2QQl32Q9211Q12華南理工大學工程碩士學位論文PLC控制的變頻調速系統(tǒng)在龍門起重機的應用指導教師：校外導師吳曉清置盔王熬援自動絲型堂量蘭程堂瞳：暨坐重?？p王捏埡申請學位級別：王程亟一論文提交日期：2QQ：：!專業(yè)名稱：控劐王程論文答辯臼期：一200542—4學位授予單位和曰期：堡直壟王盔生答辯委員會主席：旦堂寶副教援論文評閱人：睦童定副數(shù)援奎達邀直縫王程頗畢南理工大

2、學碩士學位論文ABSTRACTThcpracticaluseofPLCcontrolledconvertertechnologyinGantryCraneshasbeenintroducedinthisthesis，andfullyintroducedthecontrolsystemconfigureandcommissioningThetraditionalGantryCrane’Selectricaldrivesystemadopt

3、ACwirerotatormotorinserieswithresistanceinordertostartandconductspeedcontr01Controlsystemusedrelayhasthefoliowingdisadvantages：nleworkingenvironmentistough，duringtheworkingprocess，themotorandresistanceoftenareeasilyburnt

4、andbrokenThereliabilityoftherelaycontrolisveryweak，andtheoperationisverycomplex，thefrequencyofbreakingisveryhighControlspeedthroughrotatorinserieswithresistanceissoftmechanicallyThespeedchangeswhentheloadchanges，speedcon

5、trolisnotidealRecently，諏mthequicklydevelopingoftheITandPowerelectronictechnology，PLCcontrolledconvenertechnologystartusinginthedrivesysteminGantryCranes200TGantryCranesofGuangzhouWenChongShipYardisthebigandkeyequipmentEl

6、ectricaldesigniSthefoundationofsafety，reliabilityandadvancedtechnologyandreasonablepdcing，andconvenientmaintenanceSoitistheassuranceofthefunctionwhetherifthePLCcontrolledconveaertechnologyThedrivingsystemusemultimotordri

7、vesystemThereforetheadvancedDCBushasbeenusedInverterselectSimensmasterdrive6SE70，Rectifier／RegenerateunitofferDCvoltageandrenewedenergywillreturntopower11lecontrolsystemUSePLCandProfi—BustechnologythroughHMIinordertoacco

8、mplishthemonitortOthewholeclranes，onlinediagnosis，anddatabasemanagementInthisthesis，thesystemconfigurehasbeenanalyzedandcomparedaswellasDCBuseonvertersystemPLCandProfiBus，Ithasbeenprovedthatthesystemhasbeenrunwell，andals