PLC控制的變頻調(diào)速系統(tǒng)在龍門起重機(jī)的應(yīng)用.pdf

1、分類號(hào)I膣9UDC——密級(jí)——V736011學(xué)校代號(hào)!Q!學(xué)號(hào)2QQl32Q9211Q12華南理工大學(xué)工程碩士學(xué)位論文PLC控制的變頻調(diào)速系統(tǒng)在龍門起重機(jī)的應(yīng)用指導(dǎo)教師：校外導(dǎo)師吳曉清置盔王熬援自動(dòng)絲型堂量蘭程堂瞳：暨坐重矗縫王捏埡申請(qǐng)學(xué)位級(jí)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(xué)位授予單位和曰期：堡直壟王盔生答辯委員會(huì)主席：旦堂寶副教援論文評(píng)閱人：睦童定副數(shù)援奎達(dá)邀直縫王程頗畢南理工大

2、學(xué)碩士學(xué)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