电气传动(变频器).pdf

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11、?SB1?SB7?7?2)PLC?10,?Y1?Y2?Y3?S1?S2?S3,?S1?S2?S3?(b)?(SB1?SB7?)?www.PLC?:S1?1?3?5?7?:1)PLC?X1?X3?X5?X7?Y1“?”?S1?;S2?2?3?6?7?:2)PLC?X2?X3?X6?X7?Y2“?”?S2?;S3?4?5?6?7?:3)PLC?X4?X5?X6?X7?Y3“?”?S3?3?:?SB3?X3“?”?Y1?Y2“?”?S1?S2?,?3?www.PLC(c)?(SB1?SB7?)?SB1?SB7?PLC?X1?X7?PLC?M1?M7?:?SB1?X1?M1“?”?M1?1?SB2?S

12、B7?(X2?X7?)?M1?:M1?1?“?”?SB2?X2?M2“?”?M2?2?SB2?M2?:M2?2?“?”?:M3?3?“?”;M4?4?“?”;M5?5?“?”;M6?6?“?”;M7?7?“?”?M1?M3?M5?M7?Y1“?”?S1?;M2?M3?M6?M7?Y2“?”?S2?;M4?M5?M6?M7?Y3“?”?S3?SB5?X5?M5“?”?M1?M2?M3?M4?M6?M7?Y1?Y3“?”?S1?S3?5?www.PLC14.2?14.2.1?14.2.2?14.2.3?M1?UF1?;?M2?UF2?:?,?,?30Hz?,?;?UF2?25Hz?,?G11S?Y

13、2?UF2?:?E21(Y2?)?“2”?Y2?“?”?;?E31(?)?“30”?30Hz?Y2?;?E32(?)?“5”?30Hz?Y2?5Hz(?25Hz)?Y2?www.PLCfS?;?;fR?www.PLC 1 5?15.1?(1)?:?1:?f1?t1(?)?tA1;?2:?f2?t2(?)?tA2;l?3:?f3?t3(?)?tD3?tA3;?4:?f4(?)?t4(?)?tD4?www.PLC15.1?:?2min?:PMN?7.5kW?4?;?:?4?:(1)?“?1?”?(2)?1?:?:fX1=25Hz?:nM1?750r/min?:nL1?187.5r/min;?:t1

14、=3min;?:tA1=60s?t1=30s?www.PLC(3)?2?:?:fX1=50Hz?:nM2?1500r/min?:nL2?375r/min;?:t2?2min;?:tA2?40s?t2?20s?(4)?3?:?:fX3?90Hz?:nM3?2700r/min?:nL3?675r/min;?:t3?2min;?:tA3?30s,?t3?24s?(5)?1?:?:tD1=60s?t4=108s?www.PLC 16 PID?16.1?16.2 PID?(1)PID?PID?(?nM)?(2)PID?PID?:?,?(?pT)?,?XT?,XT?RP?,?VRF(?PID?,VRF?)

15、;www.PLC?SP?XF?VPF?PID?XF?XT?(XT-XF)?(?)?(?)?(?)?(XT?XF)?16.3 P(?)?I(?)?D(?)?(1)?KP?XF?XG?KP(XT-XF)?(?)?(?)?(?)?www.PLC(2)?(a)?:?XG?KP(XT-XF)?KP(XT-XF)?(?)?XG?“?”?(?)?XG?XG?(?XT-XF?0)?(a)?(I)?(?)?(b)?(b)?www.PLC16.3 P?I?D?RT?TC?(1)?,?,?(?)?;?PID?PID?(2)?1?PID?C1?RP?12?PID?P?PID?“?”?“?”?PID?“?”?www.PLC(3)?2?PID?PID?PID?P?I?D?TC?TC?,?,?,?“P”?:?“P”?KP?;?“P”,?,?KP?:www.PLC