您好,欢迎访问三七文档
当前位置:首页 > 临时分类 > PLC的PID及PWM功能在加热控制中的应用-柳仁松
《》2012253CP1HPLC,(PWM),,。PWM,PLCPID。,1200℃,±3℃。:PLC,PID,,AbstractChoosingCP1HtypePLCofOmronandcontrollingtheon-offofsolidstaterelaythroughPLC'Spulse-widthmodula-tion(PWM)output,thepowerofanelectricfurnaceisadjusted,soahighaccuratetemperaturecontrollingcanberealized.ThedutycycleOfPWMcorrespondstotheon-offtimeratioofsolidstaterelay,whichiscalculatedbythePLCaccordingtothetemperatureerrorusingPIDalgorithm.Thecontrolprecisionis±3℃whenthefurnacetemperatureis1200℃.Keywords:PLC,PID,pulsewidthmodulation,solidstaterelayPLCPIDPWM(,266071)ApplicationofHeatingControlBasedonPLCinPWMandPID,PLCPWM,,,。1PWM1,CP1HPLC、、、。CP1HPLC,,/、PIDPWM。GTJ48。B30-6,0~1800℃,0~20mA,CP1HPLCA/D,CPU,,PID,,PLCPWM,,,。PLC,。,,,。,,[4]。PWM:CP1HCPU,CP1HXAPLC,,PWM。PWM2,C,0000,100.00;S1,07D0H,PWM200Hz;S2,0000~0064H,0%~100%。2PID2.1PIDPLCPID,PID3。,[2]:1)α,。,。α0~1,α,,。2)。,,,,,[3]。,。,,,,,。2.2PID1)P。P,PIDTi=9999,Td=0000,P=1,PID,P,,,,,0064H,10%,Kp10。2)Ti。。P,Ti,,Ti,,Ti。Ti03E8H,100s。3)Td。P、Ti,Td,。,0。4)α。,α,,,,α。000,0.65。(91)12PWM3PID89《》2012253(89)34PIDPWM。0~1800℃,PV0~20mA,PLC200,A/D0~1770H,0~6000。SV1200℃,04B0H。SCL0~1800℃。PID,D130;D200~D23839PID,P、Ti、Td、α,,[5];D300MV,0000-00FFH。SCLMV,0~100。4CP1HPLCPID,PWM,,,。,1200℃,±3℃。、、、,。[1],.———··[M].:,2008[2],.PLCPID[J].2009,28(7):71-74[3],.PWMPID[J],.2008,27(10):32-34[4].PLCPID[J].:,2011,27(1):7-10[5].PLC[M].:,2007[:2011.12.28]4PIDPWM2)I/O:3)Y7~Y0。4)2SFC1、1。2Ladder0:D0~D18、D100。D020,,D1~D182,1~18,D10018,。1,。,(SFC),,,。,,,,。3,PLC,(SFC),,,、、,,,,SFC。PLCPLC,,。SFCPLC。[1].PLC(FX)[M].2.:,2010[2].SFCPLC[J].,2010(6)[:2011.11.30]2!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!91
本文标题:PLC的PID及PWM功能在加热控制中的应用-柳仁松
链接地址:https://www.777doc.com/doc-3964690 .html