【期刊】基于PLC的电气—液压精确控制的研究

TechniquesofAutomation&Applications|19IndustryControlandApplicationsPLC,,(,150080):,PLC,,PLC,,:PLC;;:TP29:B:1003-7241(2009)12-0019-03ResearchPreciseControlofElectric–HydraulicbasedonPLCSUNZhen-he,WANGHai-ying,BENFang(CollegeofAutomation,HarbinUniversityofScienceandTechnology,Harbin150080China)Abstract:Aimingatthezeroovershootofhydraulicdrivesystemandthedifficultyofprecisecontrol,aelectric-hydraulicprecisecontrolplanissuggestedbaseonclassicalcontrltheoryandPLCtechnology.Thezeroovershootofhydraulicdrivesystemanditsprecisecontrolbyelectricdeviceisrealized.Theruntestshowsthatitmeetstherequirementofeveryindex.Keywords:PLC;hydraulic;electriccontrol1,,300200,,,,[1],[2],,,,2-,:1,,,,,(32Mpa,),2,PLC,PID100ms,,,[3],20|TechniquesofAutomation&ApplicationsIndustryControlandApplications,,,,:1,,,,,2.,PLCPID,,,PID100msPID3-,:mpAKq∇⋅⋅=(1):q;A;p∇;Km,,m=0.5;K:5.02⎟⎟⎠⎞⎜⎜⎝⎛⋅=rdCK(2):C,;d;r(1)(2):5.035.05.024224pdCpddCq∇⋅⋅⋅⋅⋅=⎟⎟⎠⎞⎜⎜⎝⎛∇⋅⋅⋅⋅=rprp(3),Cpr,,[4]11,P1P0,P20,()61011-PP,,,,P0,2PLCTechniquesofAutomation&Applications|21IndustryControlandApplications4PLC::20MpaTr:0.5;Ts:1.5;02.0±=∇;d(+2%,),PLC,60%P090%P098%P0101%P0102%P0,2,2PLC,33,5-,,,,,,:[1]E,B.[M].,2006.[2],.[J].,2004,40(11):21-24.[3],,.PLC[J].,2007,35(12):149-150.[4].[M].,2006.11,,4,,,,(),:[1].[J].,.2005,15(2):35-37.[2].[J].,1998,(5):4-5.[3].[J]..2001,23(4):8-9.[4],.JobShop[J].,2000,3(2):69-70.[5],.jobshop[J].,2000,4(4):52-53.2