电机设计matlab程序.docx

1、电机设计matlab程序%电机设计程序clear allformat short em1=3;p=2;f=50%1.额定功率PN=5.5*103 ;%2.额定电压（单位V，三角形接法）UN=380;UN0=380;%3.功电流(单位A)IKW=PN/(m1*UN0)%4.效率eta按照技术条件的规定eta=0.875eta=0.855 ;%5.功率因数cos(phi) =0.84,按照技术条件的规定cos(phi)=0.84phi=acos(0.84);cos(phi);%6.极对数p=2p=2;%7.定转子槽数：每极每相槽数取整数。参考类似规格电机取q1=3,则Z1=2m1pq1，再查表10

2、-8选Z2=32，并采用转子斜槽。q1=3;Z1=2*m1*p*q1Z2=32 ;%8.定转子每极槽数Zp1=Z1/(2*p)Zp2=Z2/(2*p)%9.确定电机的主要尺寸；一般可参考类似电机的主要尺寸来确定Di1和lef.现按10-2中的KE1=0.0108*log(PN/1000)-0.013*p+0.931P1=KE1*PN/(eta*cos(phi)alphap1=0.68;KNm1=1.10;Kdp1=0.96;A1=25000;Bdelta1=0.69;n1=1450;V=(6.1/(alphap1*KNm1*Kdp1)*(1/(A1*Bdelta1 )*(P1/n1)D1=0.

3、21;%铁心的有效长度Di1=0.136;lef =V/(Di1)2)%气隙的确定%参考类似产品或由经验公式（10-10a），得lt=0.115;delta =0.0004lef=lt + 2*deltaD2=Di1-2*delta%转子内径先按转轴直径决定（以后再校验转子轭部磁密）Di2=0.048 ;%11.极距 tautau =pi*Di1/(2*p)%12.定子齿距t1t1=(pi*Di1/Z1)%转子齿距t2t2=(pi*D2/Z2)bsk=0.01187;%15.设计定子绕组Nphi11=eta*cos(phi)*pi*Di1*A1/(m1*IKW)%取并联支路a1=1,由式（10

4、-15），可得每槽导体数a1=1;Ns1=47%16.每相串联导体数Nphi1Nphi1=Ns1*Z1/(m1*a1)%每相串联匝数N1N1=Nphi1/2%17.绕组线规设计%初选定子电密J11=5.0A/mm2,由式（10-16），计算导线并绕根数和每根导线面积的乘积。J11=5.0;%其中定子电流初步估计值I11=IKW/(eta*cos(phi)Nt1Ac11=I11/(a1*J11) %在附录二中选用截面积相近的铜线，高强度漆包线Nt1=2;d1=0.00090;d=0.00095;Ac11=0.0000006362;Nt1Ac11=0.0000006362*2;%18. 设定子槽形

5、%因定子绕组为原导线散嵌，故采用梨形槽，齿部平行。初步取Bt11=1.4T,按式（10-18）估计定子齿宽Bt11=1.493641;KFe=0.95 ;bt1=t1*Bdelta1/(KFe*Bt11)%初步取Bj11=1.25T,按式（10-19），估计定子轭部计算高度Bj11=1.25;hj11=tau*alphap1*Bdelta1/(2*KFe*Bj11)%按齿宽和定子轭部计算高度的估算值作出定子槽形如图10-24，槽口尺寸参考类似产品决定，齿宽计算如下：b01=0.0035;b11=0.0067;h01=0.0008;h11=(b11-b01)/2*tan(pi/6);h21=0.

6、0145-h11r21=0.0044;bi11=pi*(Di1+2*h01+2*h21+2*h11)/Z1-2*r21;bi12=pi*(Di1+2*h01+2*h11)/Z1-b11;bt1=0.5*(bi12+bi11)%齿部基本平行，齿宽%19.槽满率%曹面积hs1=h11+h21;h=0.002 ;As=(2*r21+b11)/2)*(hs1-h)+pi*(r21)2/2%按附录三，槽绝缘采用DMD复合绝缘，,槽楔为h=2mm层压板，槽绝缘占面积Aideltai=0.00023;Ai=deltai*(2*hs1+pi*r21)%槽的有效面积Aef=As-Ai%槽满率sf=Nt1*Ns1

7、*d2/Aef%20.绕组系数alpha1=(p*360/Z1)Kp1=1;alpha=alpha1*pi/180,q=q1;Kd1=sin(q*alpha/2)/(q*sin(alpha/2)Kdp1=Kd1*Kp1%每相有效串联导体数NefNef=Nphi1*Kdp1%21.设计转子槽形与转子绕组%按式（10-39），预计转子导条电流：Ki=0.89 ;I21=Ki*I11*(3*Nphi1*Kdp1)/Z2%初步取转子导条电密JB1=3.5A/mm2,于是导条截面积JB1=3.5;AB1=I21/JB1%初步取Bt21=1.3T,估算转子齿宽Bt21=1.3;bt21=(t2/10*Bd

8、elta1)/(KFe*Bt21)%初步取Bj21=1.25T,估计转子轭部计算高度Bj21=1.25;hj21=tau*alphap1*Bdelta1/(2*KFe*Bj21)%为获得比较好的起动性能，采用平行槽，作槽形图如图10-25所示，取槽口尺寸b02=1mm,h02=0.5mmb02=0.001;h02=0.0005 ;%齿壁不平行的槽形的宽度（按3-3）计算如下：b12=0.0055;h12=0.0011;h22=0.026-0.0011;h12=(b12-b02)/2*tan(pi/6);h22=0.023-h12;b22=0.003;a=0.026;b=0.010;bt213=

9、pi*(D2-2*2/3*(h02+h12+h22)/Z2-(b22+(b12-b22)/3)%导条截面积（转子槽面积）AB=(b02+b12)/2*h12+(b12+b22)/2*h22%按式（11-41）估计端环电流IR1=I21*Z2/(2*p*pi)%端环所需面积JR1=0.6*JB1;AR11=IR1/JB1AR11=(a+b)/2*(h02+h12+h22)*106AR1=input(输入端环面积AR1=)%其中端环电密JR1=0.6,JB1=2.1A/mm2.按照工艺要求有所需面积确定端环内径及厚度如图10-25b,得端环面积AE=40*10(-6)%(二)磁路计算%22KE1=

10、0.918;epsilonl1=1-0.918;E1=(1-epsilonl1)*UN%23Ks(1)=1.2;KNm(1)=1.095;precision=1;while precision 0.01for n=1:3KNm(n)=input(输入波形系数KNm(n)=) alphap(n)=input(输入极弧系数alphap(n)=) phi(n)=E1/(4*KNm(n)*Kdp1*f*N1)%24 At1=KFe*lt*bt1*Zp1 At2=KFe*lt*bt213*Zp2 %25hs1=h21+h01+h11+r21;hs2=h02+h12+h22; hj11=(D1-Di1)/

11、2-hs1+r21/3 hj21=(D2-Di2)/2-hs2 Aj1=KFe*lt*hj11 Aj2=KFe*lt*hj21 %26 Adelta=tau*lef %27Fs(n)=input(输入Fs(n)=) %28 Bdelta(n)=Fs(n)*phi(n)/Adelta %29 Bt1=Fs(n)*phi(n)/At1 %30 Bt2=Fs(n)*phi(n)/At2 %31 Ht1(n)=input(输入Ht1(n)=);Ht2(n)=input(输入Ht2(n)=); %32 Kdelta1=t1*100*(4.4*delta*100+0.75*b01*100)/(t1*100

12、*(4.4*delta*100+0.75*b01*100)-(b01*100)2) Kdelta2=t2*100*(4.4*delta*100+0.75*b02*100)/(t2*100*(4.4*delta*100+0.75*b02*100)-(b02*100)2) Kdelta=Kdelta1*Kdelta2 deltaef=Kdelta*delta %33 Lt1=(h11+h21)+1/3*r21 Lt2=(h12+h22) %34 Lj11=pi*(D1-hj11)/(4*p) Lj21=pi*(Di2+hj21)/(4*p) %35 mu0=4*pi*10(-7); Fdelta(

13、n)=Kdelta*Bdelta(n)*delta/mu0 %36Ft1(n)=Ht1(n)*Lt1*100 Ft2(n)=Ht2(n)*Lt2*100 %37 Ks(2*n)=(Fdelta(n)+Ft1(n)+Ft2(n)/Fdelta(n) Ks(2*n+1)=Ks(2*n)-(Ks(2*n)-Ks(2*n-1)/3 precision=abs(Ks(2*n-1)-Ks(2*n)/Ks(2*n)endendKs=Ks(6);alphap1=alphap(3);phi=phi(3);Bdelta=Bdelta(3);Fdelta=Fdelta(3);Ft1=Ft1(3);Ft2=Ft2(3

14、);KNm=KNm(3);Fs=Fs(3);Ht1=Ht1(3);Ht2=Ht2(3);%迭代的出来的结论%38Bj1=0.5*phi/Aj1%39Bj2=0.5*phi/Aj2%40Hj1=input(输入Hj1=)Hj2=input(输入Hj2=)%41hj11/tauCj1=input(根据Bj1和hj11/tau输入Cj1=)Fj1=Cj1*Hj1*Lj11*102hj21/tauCj2=input(根据Bj2和hj21/tau输入Cj2=)Fj2=Cj2*Hj2*Lj21*102%42F0=Fdelta+Ft1+Ft2+Fj1+Fj2%43Im=2*p*F0/(0.9*m1*N1*K

15、dp1)%44Ims=Im/IKW%45Xms=(4*f* mu0*m1/pi)*(N1*Kdp1)2/(Ks*p)*lef*(tau/deltaef)Xmss=Xms*IKW/UN%（三)参数计算%46beta=(2*8+1*7)/(3*9)tauy=pi*(Di1+2*(h01+h11)+h21+r21)*beta/(2*p)d1=0.015;lB=lt+2*d1K0=1.2;l0=lB+K0*tauy%47lE=2*d1+K0*tauy%48Cx=4*pi*f*mu0*(N1*Kdp1)2*lef*PN/(m1*p*UN2)%49KU1=1.0;KL1=1.0;lambdaU1=h01/

16、b01+2*h11/(b01+b11)h212r21=h21/(2*r21),b112r21=b11/(2*r21)lambdaL1=input(输入lambdaL1=)lambdas1=KU1*lambdaU1+KL1*lambdaL1%50Xs1s=2*m1*p/(Z1*Kdp12)*(lt/lef)*lambdas1*Cx%51sigmas=0.0129;Xdelta1s=(m1/(pi2)*(tau/deltaef)*(sigmas/(Kdp12)*Ks)*Cx%52XE1s=0.47*(lE-0.64*tauy)*Cx/(lef*Kdp12)%53Xsigma1s=Xs1s+Xdel

17、ta1s+XE1s%54%55lambdaU2=h02/b02hb2=h22/b22,b1b2=b12/b22lambdaL=input(输入lambdaL=);lambdaL2=2*h12/(b02+b12)+lambdaLlambdas2=lambdaU2+lambdaL2%56Xs2s=2*m1*p/Z2*(lt/lef)*lambdas2%57Z22p=Z2/(2*p)sigmaR=input(根据Z22p输入sigmaR=)Xdelta2s=m1*tau*sigmaR/(pi2*deltaef*Ks)%58DR=0.107;XE2s=(0.2523*Z2*DR/(2*p*lef*2*

18、p)*(2*m1*p/Z2)%59Xsks=0.5*(bsk/t2)2*Xdelta2s%60Xsigma2s=(Xs2s+Xdelta2s+Xsks+XE2s)*Cx%61Xsigmas=Xsigma1s+Xsigma2s%62rhow=0.0217*10(-6);R1=rhow*(2*N1*l0)/(Nt1*Ac11*a1)%63R1s=R1*IKW/UN%64C=1.05;rhoCu=8.9*103;GCu=C*l0*Ns1*Z1*Ac11*Nt1*rhoCurhoFe=7.8*103;GFe=KFe*lt*(D1+delta)2*rhoFe%65 AR1代替ARKB=1.04;rhow

19、1=0.0434*10(-6);R21=rhow1*(KB*lt/AB+Z2*DR/(2*pi*p2*AR1*10(-6)*(4*m1*(N1*Kdp1)2/Z2)RB1=rhow1*(KB*lt/AB)*(4*m1*(N1*Kdp1)2/Z2)RBs=RB1*IKW/UNRR1=rhow1*Z2*DR/(2*pi*p2*AR1*10(-6)*(4*m1*(N1*Kdp1)2/Z2)RRs=RR1*IKW/UNR2s=R21*IKW/UN%66eta(1)=0.855;I1Ps(1)=1/eta(1);precisioneta=1;while precisioneta0.005 for m=1

20、:2 I1Ps(m)=1/eta(2*m-1) %67 sigma1=1+Xsigma1s/Xmss IXs(m)=sigma1*Xsigmas*(I1Ps(m)2*(1+(sigma1*Xsigmas*I1Ps(m)2) %68 I1Qs(m)=Ims+IXs(m) %69 epsilonL(m)=I1Ps(m)*R1s+I1Qs(m)*Xsigma1s KE=1-(I1Ps(m)*R1s+I1Qs(m)*Xsigma1s) %70 epsilon0=Ims*Xsigma1s 1-epsilon0 %71 Bt10(m)=(1-epsilon0)/(1-epsilonL(m)*Bt1 Ht1

21、0(m)=input(输入Ht10(m)=) Bt20(m)=(1-epsilon0)/(1-epsilonL(m)*Bt2 Ht20(m)=input(输入Ht20(m)=) %73 Bj10(m)=(1-epsilon0)/(1-epsilonL(m)*Bj1 Hj10(m)=input(输入Hj10(m)=) %74 Bj20(m)=(1-epsilon0)/(1-epsilonL(m)*Bj2 Hj20(m)=input(输入Hj20(m)=) %75 Bdelta0(m)=(1-epsilon0)/(1-epsilonL(m)*Bdelta %76 Ft10(m)=Ht10(m)*L

22、t1*100 %77 Ft20(m)=Ht20(m)*Lt2*100 %78 hj11/tau,Bj10 Cj1(m)=input(输入Cj1(m)=) Fj10(m)=Cj1(m)*Hj10(m)*Lj11*100 %79 hj21/tau,Bj20 Cj2(m)=input(输入Cj2(m)=) Fj20(m)=Cj2(m)*Hj20(m)*Lj21*100 %80 Fdelta0(m)=Kdelta*delta*Bdelta0(m)/mu0 %81 F00(m)=Fdelta0(m)+Fj20(m)+Fj10(m)+Ft20(m)+Ft10(m) %82 Im0=2*p*F00(m)/(

23、0.9*m1*N1*Kdp1) %(四)工作性能计算 %83 I1s(m)=(I1Ps(m)2+I1Qs(m)2)(0.5) I1(m)=I1s(m)*IKW %84 J1(m)=(I1(m)/(a1*Nt1*Ac11)/106 %85 A1(m)=m1*Nphi1*I1(m)/(pi*Di1) %86 I2s(m)=(I1Ps(m)2+IXs(m)2)(0.5) I2(m)=I2s(m)*IKW*m1*Nphi1*Kdp1/Z2 IR(m)=I2(m)*Z2/(2*pi*p) %87 JB(m)=I2(m)/(AB*106) JR(m)=IR(m)/(AR1) %88 pCu1s(m)=I1

24、s(m)2*R1s pCu1(m)=pCu1s(m)*PN %89 pA12s(m)=I2s(m)2*R2s pA12(m)=pA12s(m)*PN %90 pss=0.02; ps=pss*PN %91 pfw=(3/p)2*(D1)4*104 pfws=pfw/PN %92 Bj10 phej(m)=input(输入phej(m)=) k2=2; Gj=4*p*Aj1*Lj11*rhoFe pFej(m)=k2*phej(m)*Gj Bt10 phet(m)=input(输入phet(m)=) Gt=2*p*At1*Lt1*rhoFe k1=2; pFet(m)=k1*phet(m)*Gt

25、 pFe(m)=pFej(m)+pFet(m) pFes(m)=pFe(m)/PN %93 sigmaps(m)=pCu1s(m)+pA12s(m)+pss+pfws+pFes(m) %94 PN1s(m)=1+sigmaps(m) %95 eta(2*m)=1-sigmaps(m)/PN1s(m) eta(2*m+1)=eta(2*m)+(eta(2*m)-eta(2*m-1)/5 precisioneta=abs(eta(2*m)-eta(2*m-1)/eta(2*m) endend%96I1s=I1s(2);I1Ps=I1Ps(2);phi=acos(I1Ps/I1s);cos(phi)

26、%97pFers=(1-1/2)*pFej+(1-1/2.5)*pFet)*10(-3)/PN*1000sN=pA12s/(1+pA12s+pFers+pss+pfws)%98nN=60*f/p*(1-sN)%99Tms=(1-sN)/(2*(R1s+(R1s2+Xsigmas2)(0.5)%(五)启动性能%100K(1)=3;%101precisionist=1;K(1)=3;Ist(1)=K(1)*Tms*IKWwhile precisionist0.03 for k=1:3 Fst(k)=Ist(2*k-1)*Ns1/a1*0.707*(KU1+Kd12*Kp1*Z1/Z2)*(1-ep

27、silon0)(0.5) beta0=0.64+2.5*(delta/(t1+t2)(0.5) BL=mu0*Fst(k)/(2*delta*beta0) %102 KZ(k)=input(输入启动漏抗饱和KZ（k）=) %103 cs1(k)=(t1-b01)*(1-KZ(k) %104 cs2(k)=(t2-b02)*(1-KZ(k) %105 deltalambdaU1(k)=(h01+0.58*h11)/b01*(cs1(k)/(cs1(k)+1.5*b01) lambdas1st(k)=KU1*(lambdaU1-deltalambdaU1(k)+KL1*lambdaL1 %106

28、Xs1sts(k)=lambdas1st(k)/lambdas1*Xs1s %107 Xdelta1sts(k)=KZ(k)*Xdelta1s %108 Xsigma1sts(k)=Xs1sts(k)+Xdelta1sts(k)+XE1s %109 hB=h22; xi=1.987*10(-3)*hB*(f/rhow1)(0.5) %110 b1b2=b22/b12; KF(k)=input(输入电阻增加系数KF(k)=) Kx(k)=input(输入电抗增加系数Kx(k)=) %111 deltalambdaU2(k)=h02/b02*(cs2(k)/(cs2(k)+b02) lambdas

29、2st(k)=(lambdaU2-deltalambdaU2(k)+Kx(k)*lambdaL2 %112 Xs2sts(k)=lambdas2st(k)*Xs2s/lambdas2 %113 Xdelta2sts(k)=KZ(k)*Xdelta2s %114 Xksts(k)=KZ(k)*Xsks %115 Xsigma2sts(k)=(Xs2sts(k)+Xdelta2sts(k)+Xksts(k)+XE2s)*Cx %116 Xsigmasts(k)=Xsigma1sts(k)+Xsigma2sts(k) %117 R2sts(k)=KF(k)*RBs+RRs %118 Rsts(k)=R1s+R2sts(k) %119 Zsts(k)=(Rsts(k)2+(Xsigmasts(k)2)(0.5) %120 Ist(2*k)=IKW/Zsts(k) precisionist=abs(Ist(2*k)-Ist(2*k-1)/Ist(2*k) Ist(2*k+1)=input(输入Ist(2*k+1)=) endend%121ist=Ist(6)/I1(2)%122Tsts=R2sts(3)/Zsts(3)2*(1-sN)