电力拖动自动控制系统习题答案

1.txt32 1-1 PWMPWM1 2 3 1100004 5 6 1-2 PWMVTdi2VT1gU-dUdEUdi2VDont2gU3+2VTTtont2VTdi.4-1VD1VD1VT2VT1VT1VT-1VTdi2VD2VD2VT- maxminnDn= maxnminns0Nnsn=0100%Nnsn= Nn0minNNNnnsnnn=+min(1)NNNnsnnss.=.=maxmin(1)NNnnSDnn=.sNn- max1500/minOnr=min150/minOnr=15/minNnr= Nn maxmiDn=. 1115100%100%10%15001115NNNDnsnDn=+- 1500150r/min100r/min2%s 0minNNNnnsnnn=+min1500.023.06/min110.02Nnsnrs=.1opclnnK=+1001131.73.06opclnKn=.=.=1-6 158r/min30 1 clenC=dRI1+K clenC=dRI1+K=81+15=1281284.13/min130clenrC=+dRI1+K2 (1)NNnSDnS=.sDNnNn1.941-7 D=201500/minNnr=10%5%240/minNopnr= s=10%8.33/min20NNnsnrD=15000.11-s1-0.12401127.88.33opclnKn=.=.=s=5% 3.95/min20NNnsnrD=15000.051-s1-0.052401159.83.95opclnKn=.=.=10%5%18 12319 110 VM2.2220NNPkWUV12.5NIA= 1500/minNnr=1.2aR=1.5recR=D=2035sK=10%s1 opncln2-315nUV.=dNII=Nn=n4122012.51.20.1367min/150012.5246.9/minNNaeNNeUIRCVnIRrC.=.=op1.2+1.5n0.13678.33/min20NnsrD=cl15000.1n1-s1-0.12 -3 15nU.=dNII=Nn=n150.011500nnNUUnn.=4246.91128.648.33opclnKn=.=.=28.6411.19/0.0135/0.1367PSeKKKC=111 1-102dblNII1.2dcrNII1/3-: UBnKp Ks1/CeU*nUc Un E n Ud0Un+- IdR-UnKs: IBd+-A GT MTG+-+-+-UtgUdIdn+-+ UnUnU*nUcUPE+-MTIdUnUdUcUntg21.2ncomdblNScomdcrNSUUIIRUIIR.+=15V.nU1.522.5sRV=comU21.2ncomdblNScomdcrNSUUIIRUIIKR.+=112 -1-5818NPkW=220NUV=941000/minNIAr=Nn0.15aR=0.3recR=40sK=15nmU.=10imUV=D=2010%s1.5dblNII=1.1dcrNII=-1 2 pK3 1R020Rk=4 2RVS1150.0151000nnNUUnn.=2220940.150.2059min/100094205.4/minNNaeNNeUIRCVnIRrC.=.=op0.15+0.3n0.20595.56/min20NnsrD=cl10000.1n1-s1-0.1205.41135.95.56opclnKn=.=.=35.912.3/0.01540/0.2059PSeKKKC=113 1 pK2 3 aR4 5 pKaR1-13 VM2.822015.6NNNPkWUVI=1500/minr=Nn1.5aR=1recR= 35sK=1 D=30s2 D=30s=10%3 D=3010%s= 10nUV.=dNII=Nn=n pK4 -KD=3010nUV.=dNII=Nn=n122015.61.50.1311min/1500NNaeNUIRCVn.=.15.6297.5/minNeIRrC=op1.5+1n0.131130297.51