自动控制元件-ppt课件

1、22()PTN m202maxmax22max2maxmax2max2maxmax()()0.105LLLLLLmiLLLPK TJTJTJJiiiPTiPTni2221231234ALBrmsT tT tT tTtttt2max0maxmaxmaxmaxmaxtaeLaeTTIKUIRK iIRK 2max2max0202013LLLmLLLLmLLmLmJTTJ iidTdiJTiJJiJJJi 2DTIlB026026060aanDnENBlvNBlNBlDUnNBlD00.24200.249445450.03 /15000.03 30005 4110( )emaaaataNaaNaaa

2、aaaaaNaaeaeaNaT RUI RKIRVIRVUEI REUIRVEKV rpmnUK nIRV 4em0max00151)0.01(/)15002)15( )150.01 14500.5( )1aeaaaaaeaaUKV rpmnUIARUEUK nIARR10afafafaemafeeemmaftafUEI RTTTECnK nTCIK I 11afaffafafeafeafefafeefafUIRUUK nRRKUnknRRKkRR( )0afit ( )( )( )( )afafeeUtetK n tKt()()a fa ffUtitR( )( )( )6 02a fba f

3、e fafbafa fee fe fed UtUtKtd tLLRRUKk( )(1)btafafeUtUe00afsifUkR 1efafsfknUnkR1( )amuC u tu11( )mmuudutuKdt11( )u t dtKxmaxnfRblnabkukABABCC定子控制绕组永磁转子定子磁极NNSSABNNSSBABA定子绕组转子定子永磁体AANNSSBBmchbrZp( )TfmaxjTmax( )jTf Istfmaxf()emdcpTf f()stfff T( )stff J22pm360chrZ3602p12 ()rZp KmACBABABCC三相反应式步进电机展开图3

4、60brNZ60()cprfnrpmNZcpf60()rfnrpmZfmaxsinemAjeTT erZerZ36023602erchechebeZNNN22221111222212kmemmemkma aaakkaakkkkmkdWT ddWTdWWL IIIFIIFW22220121max1211()22cos()1sin2sinmkkemkkkkrkeknenemrkeemjedWdTddddFZ FN mddnTZ FTT maxmaxmaxmaxsin2sin()32sin()3sin()3emAjeemBjeemCjeemABemAemBjeTTTTTTTTTTmaxsinemAj

5、eTT 三相反应式步进电机矩角特性曲线族max2sin()3emBjeTT max2sin()3emCjeTT maxmaxmaxsin()3sin()5sin()3emABjeemBCjeemCAjeTTTTTT maxmaxmaxmaxsinsin()2sin()3sin()2emAjeemBjeemCjeemDjeTTTTTTTT maxmaxmaxmax2sin()432sin()452sin()472sin()4emABjeemBCjeemCDjeemDAjeTTTTTTTT maxsinemAjeTT max2sin()3emBjeTT max2sin()3emCjeTT 双三拍单

6、双六拍 22通电方式，6拍33通电方式，6拍23通电方式，12拍ACACBCBCBABABACBACBACBACBACBACABBCCDDAAABBBCCCDDDAABBAABBAAABBBAAABBBA五相反应式转矩矢量五相混合式转矩矢量五相反应式转矩矢量2311.618TTT413.078TT513.236TT三相反应式空载情况下三相反应式负载情况下，比较a, q, a三种负载三相反应式多拍情况下，负载能力提高112qdqshTTT132qsTTfemqTTmaxmaxmax121232emqjemqjemqjTTTTTT三相混合式步进电机负载能力maxmaxmax3233emqjemqjemqjTTTTTT22maxmax2max2sin()sin()sin()0emtemtjeejrejreddJBTdtdtTTTZddJBTZdtdt ebe2maxmax2max2max21,204()2jrjejrjrTZTdB ddtJ dtJJTZBppJJTZBBJJJpsin0be00000(1 cos)ttebeddttmax0jrTZJmax24()jrTZBJJmax2jrBJTZ20max14djrBJTZebemax2jrBJTZebe( )et()stfff T(