自动控制元件-3.异步电机(3)

1、aemaeetUT RKK K2aemaeetUT RnCC C111102222221010022111222()()()mmmlUErjxIEUrjxIIIIkEZIrjxIUZ IUENkUEN 1114.4412mmEEUNfsincmiItsin(90 )fmiIt36018060360160360sffnppfp360360360r/min120sinsin(120 )sin(120 )AmBmCmiItiItiIt6 0sfnpFNIxFW ixWi/2xW i2 siniIt2sin2xFW It1( )0.9sinmxFxW It11( )0.9sincossincosxF

2、xW ItxAtx11sincosFAtxcos10 xx 1sinAtxW1110.9sincos0.9sincosxbbWFqW IktxIktxp1sincossincoskWItxAtxp1A2 sin()iIt0 x1F1010sin()cos()sin()cos()FkWItxxAtxx11sin()/2FAtx1F1F/2tx11/2FA2xt1A1A11111111sincossin()sin()22FAtxAtxAtxFFddxt11sin()/2FAtx1F1Frad/s60 r/s r/s r/min2sffnpppsin(90 )cos(90 )fffFKW ItxcW

3、fWcificFfFsincoscccFKW Itx11sin()sin()22cccccFKW ItxKW Itx11sin()sin()22fffffFKW ItxKW ItxccffW IW Isin()sin()sin()cfffccmFFFKW ItxKW ItxFtx60r/minsfnp2sin 2sin(90 )ccffiItiIt，cIfcfcWIIWfIccffW IW Isin(90 )cos(90 )fffFKW ItxsincoscccFKW Itx2sin 2sin(90 )ccffiItiIt，cmfmBBfmBfmB60sfnp11sin()/2FAtx/2tx

4、11111111sincossin()sin()22FAtxAtxAtxFFsin(90 )cos(90 )fffFKW ItxsincoscccFKW Itxsin()sin()sin()cfffccmFFFKW ItxKW ItxFtx60r/minsfnpcIfIccffW IW Isin(90 )cos(90 )fffFKW ItxsincoscccFKW Itx2sin 2sin(90 )ccffiItiIt，ccffW IW Issnnsn(1)snnssnn(1)sscosmt 012F = F + F0sin()mFFtx 201ikIII111222wiwm W kkm W

5、k0sin()sin()mmBFtxBtxsin()sin()mmeBlvlvBtxetx220sin()mees txsssssnnsnnnnnn260/sfpsn260spsnfsf22 222jssrxE= I+ I11111(j)rxU = -E + I222222,ssExEsExsx、 ，且有2sE2sx22 222jssrxE= I+ I11111(j)rxU = -E + I2222 22222222jjjssssrxrxrsxEsEE= I+II222222222221j()jjrsrsxrrxxsssEEEI1122wewWkkW k1rmr2r21srsFBlI122co

6、smTCI21srsmT1mS ms2122mfTCUx22msrx12fmBB12fmBBTTT0TTTTTTcecnUU( )( )( )(1)(1)mesKG sU sss( )1mKG ssddd( , )dddUTU TtUtTt( )( )( )( )( )( )sssU ssT ssU sT sUTUT ( )( )( )( )( )( )11msKUsU sJssG sUTU ssJsT0KU0mJT d( )( )dTJT sJsstm/TU、0KU0mJT 1mS 2122mfTCUx22msrxcecnUU2TnC120sinsin(120 )sin(120 )AmBmC

7、miItiItiIt6 0sfnp(1)(1)mememssPs PPTsmPT(1)memPs P2122mfTCUx22msrxnTnsmmnkTT0.020.05ns 1.62.5mk 2mmTT s s2mm nsk s1,p f s111114.44wmUEf W k1U11/Ef1E1U1f1f11114.44wmEf W k11111(j)rxU = E + I111114.44wmUEfW k221strrrss常值fE2sEfEfE2E2fsEE常值fITI1I0ccffW IW I60sfnpr/min60 5010003snr/min60,1200ssfnnp60 5060 502.51200spnr/min